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  • Cells, Cultured  (205)
  • American Association for the Advancement of Science (AAAS)  (205)
  • Annual Reviews
  • 1980-1984  (205)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (205)
  • Annual Reviews
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Year
  • 101
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    Fragment spanning the SV40 replication origin is the only DNA sequence required in cis for viral excision (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-12-17
    Description: A 311-base pair fragment containing the SV40 origin of replication was linked to the chicken thymidine kinase gene on a recombinant plasmid. This molecule was transfected into human 143 thymidine kinase-deficient (TK-) cells, and colonies positive for thymidine kinase were selected. When cell lines derived from these colonies were fused to permissive simian cells that produce SV40 T antigen, the recombinant plasmid excised itself from the human cellular genome and replicated with a high copy number per cell. These results show that this segment of the viral genome is the only sequence required in cis to mediate SV40 excision and replication upon fusion to permissive cells. In addition, we have shown that excised plasmids apparently identical to the input DNA can be efficiently rescued in Escherichia coli. SV40 excision and replication may therefore be useful for the recovery of cloned genes from eukaryotic cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Conrad, S E -- Liu, C P -- Botchan, M R -- CA 30490/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Dec 17;218(4578):1223-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6293055" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cells, Cultured ; Chickens ; *DNA Replication ; DNA, Viral/*genetics ; Gene Expression Regulation ; Genes, Viral ; Humans ; Recombination, Genetic ; Simian virus 40/*genetics ; *Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 102
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    Cellular transforming genes (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-27
    Description: Cellular genes potentially capable of inducing oncogenic transformation have been identified by homology to the transforming genes of retroviruses and by the biological activity of cellular DNA's in transfection assays. DNA's of various tumors induce transformation with high efficiencies, indicating that oncogenesis can involve dominant genetic alterations resulting in activation of cellular transforming genes. The identification and characterization of cellular transforming genes and their possible involvement in naturally occurring cancers, is discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cooper, G M -- New York, N.Y. -- Science. 1982 Aug 27;217(4562):801-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6285471" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Cell Transformation, Neoplastic ; Cells, Cultured ; Chick Embryo ; DNA/genetics ; DNA Restriction Enzymes ; DNA, Viral/genetics ; Gene Expression Regulation ; *Genes ; Genes, Viral ; Humans ; Mice ; Neoplasms/*genetics ; Oncogene Protein pp60(v-src) ; Rats ; Retroviridae/*genetics ; Transfection ; Viral Proteins/genetics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 103
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    Multiplication of tobacco mosaic virus in tobacco leaf disks is inhibited by (2'-5) oligoadenylate (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-06-25
    Description: The oligonucleotide (2'-5') oligoadenylate that is induced in interferon-treated animal cells protects plant tissue from infection by the tobacco mosaic virus. This inhibition of virus multiplication was obtained at concentrations comparable to those affecting protein synthesis and antiviral activities in animal cells. After treatment with (2'-5') oligoadenylate, the multiplicability of tobacco mosaic virus was reduced by 80 to 90 percent as measured by enzyme-linked immunosorbent assay. These results, along with the observation that human interferon protects tobacco tissue from infection by tobacco mosaic virus, indicate that plants and animals may have a common pathway for virus resistance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Devash, Y -- Biggs, S -- Sela, I -- New York, N.Y. -- Science. 1982 Jun 25;216(4553):1415-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6178155" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Nucleotides/*pharmacology ; Animals ; Cells, Cultured ; Interferons/pharmacology ; Kinetics ; Oligonucleotides/*pharmacology ; Oligoribonucleotides/*pharmacology ; Plants, Toxic ; Tobacco/microbiology ; Tobacco Mosaic Virus/*drug effects ; Virus Replication/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 104
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    Nucleotide sequence of the p21 transforming protein of Harvey murine sarcoma virus (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-03
    Description: Harvey murine sarcoma virus is a retrovirus which transforms cells by means of a single virally encoded protein called p21 has. We have determined the nucleotide sequence of 1.0 kilobase in the 5' half of the viral genome which encompasses the has coding sequences and its associated regulatory signals. The nucleotide sequence has identified the amino acid sequence of two additional overlapping polypeptides which share their reading frames and the carboxyl termini with p21 but which contain additional NH2-terminal amino acids.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dhar, R -- Ellis, R W -- Shih, T Y -- Oroszlan, S -- Shapiro, B -- Maizel, J -- Lowy, D -- Scolnick, E -- New York, N.Y. -- Science. 1982 Sep 3;217(4563):934-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6287572" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Transformation, Viral ; Cells, Cultured ; Defective Viruses/*genetics ; Genes, Viral ; Oncogene Protein p21(ras) ; Peptide Fragments ; Protein Biosynthesis ; Protein Conformation ; RNA, Viral/genetics ; Sarcoma Viruses, Murine/*genetics ; Viral Proteins/analysis/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 105
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    Secretion of newly taken-up ascorbic acid by adrenomedullary chromaffin cells (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-05-14
    Description: Primary cultures of bovine adrenomedullary cells accumulate carbon-14-labeled ascorbic acid through a saturable and energy-dependent process. The newly taken-up ascorbate is released concomitantly with catecholamines upon stimulation of chromaffin cell secretion. The release of ascorbate is Ca2+-dependent and mediated through activation of nicotinic receptors. These results indicate that exogenous ascorbate taken up into chromaffin cells is incorporated in situ into a secretable compartment, probably the catecholamine-containing chromaffin vesicles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Daniels, A J -- Dean, G -- Viveros, O H -- Diliberto, E J Jr -- New York, N.Y. -- Science. 1982 May 14;216(4547):737-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079733" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Medulla/*secretion ; Animals ; Ascorbic Acid/metabolism/*secretion ; Biological Transport, Active ; Calcium/physiology ; Cattle ; Cells, Cultured ; Chromaffin Granules/metabolism ; Chromaffin System/*secretion ; Nicotine/pharmacology ; Receptors, Nicotinic/physiology ; Secretory Rate/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 106
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    Placental mononuclear phagocytes as a source of interleukin-1 (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-10-29
    Description: Mouse and human placental tissue contains a large number of mononuclear phagocytes. These cells, isolated from placenta, were shown to produce the multifaceted immune factor interleukin-1. Activity in the supernatants of 48-hour mononuclear phagocyte cultures was associated with a 12,000- to 18,000-dalton protein, consistent with known interleukin-1 characteristics. Stimulation of phagocytosis with latex beads increased the production and release of interleukin-1 from these placental cells, which may be a useful source of this protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Flynn, A -- Finke, J H -- Hilfiker, M L -- CA 24474/CA/NCI NIH HHS/ -- CA 34107/CA/NCI NIH HHS/ -- RR 00210/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 29;218(4571):475-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6981846" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Culture Media ; Humans ; Interleukin-1/*biosynthesis ; Interleukin-2/analysis ; Mice ; Phagocytes/*immunology ; Placenta/cytology/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 107
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    Boradeption: a new procedure for transferring water-insoluble agents across cell membranes (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-09
    Description: A new process has been developed which is called "Boradeption" to signify boronic acid--dependent phase transfer of water-insoluble agents. Highly fluorescent boronic acid dervatives, FluoroBoras, are solubilized with a physiologically compatible carrier buffer containing a receptor group for boronate adduct formation. The system can be used to stain living cells. In another variation of the Boradeption concept, an insoluble reporter molecule containing a boronate receptor is solubilized with a carrier buffer containing a boronic acid functional group. The boronate-receptor complexes, which are in dynamic equilibrium, can be designed as vital stains and reagents for a variety of biological and medical applications.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallop, P M -- Paz, M A -- Henson, E -- AG-00376-07/AG/NIA NIH HHS/ -- HL-20764-04A1/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 9;217(4555):166-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6178158" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Transport ; *Boron Compounds/therapeutic use ; *Boronic Acids/therapeutic use ; *Cell Membrane Permeability ; Cells, Cultured ; Chemical Phenomena ; Chemistry ; Chromogenic Compounds/metabolism ; Cricetinae ; Fibroblasts ; Fluorescent Dyes/metabolism ; Humans ; Rats ; Staining and Labeling
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 108
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    Active genes are sensitive to deoxyribonuclease I during metaphase (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-13
    Description: The active exogenous murine leukemia virus sequences of mouse cells growing in culture are preferentially digested by deoxyribonuclease I in metaphase chromosomes. As determined by nuclear nick translation, all of the gene sequences of these cells active during interphase are in a deoxyribonuclease I-sensitive conformation during metaphase. This method of nick translation can therefore be used to label chromosomes in situ in order to visualize the active regions of the genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gazit, B -- Cedar, H -- Lerer, I -- Voss, R -- GM 20483/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 13;217(4560):648-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6283640" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Chromosomes, Human ; DNA/*genetics ; Deoxyribonuclease I ; Deoxyribonucleases/*pharmacology ; Endonucleases/*pharmacology ; Fibroblasts/metabolism ; Genes, Viral ; Humans ; Interphase ; Leukemia Virus, Murine/genetics ; *Metaphase ; Mice ; RNA, Viral/*genetics ; Transcription, Genetic
    Print ISSN: 0036-8075
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  • 109
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    Insulin stimulates the phosphorylation of the 95,000-dalton subunit of its own receptor (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-01-08
    Description: Cultured human lymphocytes and rat hepatoma cells were labeled with [32P]orthophosphate and the insulin receptor subunits identified by immunoprecipitation and sodium dodecyl sulfate-gel electrophoreses. In both cell types the 95,000-dalton (beta) subunit of the insulin receptor was selectively phosphorylated. Phosphorylation was specifically stimulated by insulin in a dose-dependent fashion after 1 and 15 minutes of hormone treatment, whereas human growth hormone was without effect. This phosphorylation may be a very early event in insulin action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kasuga, M -- Karlsson, F A -- Kahn, C R -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):185-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7031900" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Growth Hormone/pharmacology ; Humans ; Insulin/*pharmacology ; Liver Neoplasms, Experimental/metabolism ; Lymphocytes ; Macromolecular Substances ; Molecular Weight ; Phosphorylation ; Rats ; Receptor, Insulin/*metabolism
    Print ISSN: 0036-8075
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  • 110
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    Identification of a BALB/c H-2Ld gene by DNA-mediated gene transfer (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-05
    Description: Gene transfer and immunoselection were used in the identification of a BALB/c genomic clone containing an H-2Ld gene (clone 27.5). Transformation of thymidine kinase-negative C3H mouse L cells with the cloned 27.5 DNA together with the herpes simplex virus tk gene produced transformants expressing Ld molecules detected by radioimmune assay with monoclonal hybridoma antibodies to Ld antigens. The foreign Ld gene products expressed by cloned mouse L cell transformants were shown to be virtually indistinguishable from BALB/c spleen Ld molecules by two-dimensional electrophoretic analysis of H-2Ld immunoprecipitates. These results indicate that the genomic clone 27.5 contains a functional BALB/c H-2Ld gene and demonstrate the usefulness of this approach for identifying the gene products encoded by cloned genes which are members of a multigene family. Furthermore, the ability to place cell-surface recognition molecules on the surfaces of foreign cells provides a powerful opportunity for functional analyses of these molecules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goodenow, R S -- McMillan, M -- Orn, A -- Nicolson, M -- Davidson, N -- Frelinger, J A -- Hood, L -- CA 22662/CA/NCI NIH HHS/ -- CA 26199/CA/NCI NIH HHS/ -- GM 06965/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Feb 5;215(4533):677-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7058331" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Genes ; H-2 Antigens/*genetics ; Isoelectric Point ; L Cells (Cell Line) ; Mice ; Mice, Inbred BALB C/*genetics ; Transformation, Genetic
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  • 111
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    Mammalian tyrosinase catalyzes three reactions in the biosynthesis of melanin (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-17
    Description: The biosynthesis of melanin is initiated by the catalytic oxidation of tyrosine to dopa by tyrosinase in a reaction that requires dopa as a cofactor. Tyrosine then catalyzes the dehydrogenation of dopa to dopaquinone. The subsequent reactions can proceed spontaneously in vitro. Tyrosinase, purified from murine melanomas and the skins of brown mice, has now been shown to catalyze a third reaction in mammalian melanogenesis, namely the conversion of 5,6-dihydroxyindile to melanochrome. This reaction requires dopa as a cofactor and is inhibited by tyrosine. Conversely, 5,6-dihydroxyindole inhibits the oxidation of tyrosine to dopa, so that the relative concentrations of tyrosine and 5,6-dihydroxyindole within the mammalian pigment cell are capable of regulating melanogenesis in a previously unrecognized fashion. Tyrosinase has the unusual property of catalyzing three distinct reactions within a single biochemical pathway: the hydroxylation of a monophenol, the dehydrogenation of a catechol, and the dehydrogenation of a dihydroxyindole. The first and third of these reactions require dopa as a cofactor; in the second reaction, dopa is a substrate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korner, A -- Pawelek, J -- DA-01147/DA/NIDA NIH HHS/ -- DA-05186/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 17;217(4565):1163-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6810464" target="_blank"〉PubMed〈/a〉
    Keywords: Catechol Oxidase/*metabolism ; Cells, Cultured ; Dihydroxyphenylalanine/metabolism ; Indoles/metabolism ; Kinetics ; Melanins/*biosynthesis ; Melanoma/enzymology ; Monophenol Monooxygenase/*metabolism ; Neoplasms, Experimental/enzymology ; Substrate Specificity ; Tyrosine/metabolism
    Print ISSN: 0036-8075
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  • 112
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    Homologous regulation of gonadotropin-releasing hormone receptors in cultured pituitary cells (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-19
    Description: Specific receptors for gonadotropin-releasing hormone (GnRH) in cultured rat pituitary cells were increased by subnanomolar concentrations of GnRH agonists and decreased by high concentrations of these peptides. The antagonist [D-Phe2, Pro3, D-Phe6]GnRH did not alter GnRH binding capacity and blocked the increase in sites induced by GnRH. These findings provide direct evidence for the homologous regulation of GnRH receptors by physiological concentrations of the hypothalamic peptide, an action that could mediate the cyclical and postcastration increases in GnRH receptors and responsiveness of the pituitary gonadotrophs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loumaye, E -- Catt, K J -- New York, N.Y. -- Science. 1982 Feb 19;215(4535):983-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6296998" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Dose-Response Relationship, Drug ; Feedback ; Female ; Gonadotropin-Releasing Hormone/analogs & derivatives/metabolism/pharmacology ; Pituitary Gland/secretion ; Pituitary Hormone-Releasing Hormones/*metabolism/pharmacology ; Rats ; Receptors, Cell Surface/*pharmacology ; Receptors, LHRH
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  • 113
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    Ornithine decarboxylase: essential in proliferation but not differentiation of human promyelocytic leukemia cells (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-04-02
    Description: The ornithine decarboxylase inhibitor DL-alpha-difluoromethyl ornithine inhibited a proliferation-associated increase in ornithine decarboxylase activity in cultured human promyelocytic leukemia cells, resulting in a marked suppression of cell proliferation and subsequent cell loss. It also inhibited increases in ornithine decarboxylase activity associated with the phorbol ester-induced conversion of promyelocytic HL-60 cells to monocyte-like cells and the retinoic acid-induced conversion to granulocyte-like cells. However, the inhibition of ornithine decarboxylase activity did not prevent cellular differentiation. These results suggest that polyamine biosynthesis has a specific role in cell proliferation rather than in inducing differentiation that is not accompanied by proliferation. The data also demonstrate that cessation of proliferation in HL-60 cells is not necessarily associated with differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luk, G D -- Civin, C I -- Weissman, R M -- Baylin, S B -- AM-27447/AM/NIADDK NIH HHS/ -- CA-18404/CA/NCI NIH HHS/ -- HL-19157/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 2;216(4541):75-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6950518" target="_blank"〉PubMed〈/a〉
    Keywords: Carboxy-Lyases/*physiology ; Cell Adhesion ; Cell Differentiation ; Cell Division ; Cells, Cultured ; Female ; Granulocytes/pathology ; Humans ; Leukemia, Myeloid, Acute/*enzymology/pathology ; Macrophages/pathology ; Ornithine Decarboxylase/*physiology ; Polyamines/biosynthesis ; Tetradecanoylphorbol Acetate/pharmacology ; Tretinoin/pharmacology
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  • 114
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    Tumor cell-platelet aggregation: induced by cathepsin B-like proteinase and inhibited by prostacyclin (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-06
    Description: The ability of tumor cells to metastasize may be related to their ability to promote aggregation of host platelets. The use of inhibitors of cysteine proteinases resulted in parallel inhibition of B16 amelanotic melanoma-induced platelet aggregation and of a cathepsin B activity. The antimetastatic agent prostacyclin inhibited platelet aggregation induced by the tumor cells and by papain, a cathepsin B-mimicking agent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Honn, K V -- Cavanaugh, P -- Evens, C -- Taylor, J D -- Sloane, B F -- CA29405/CA/NCI NIH HHS/ -- CA29997/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 6;217(4559):540-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7046053" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cathepsin B ; Cathepsins/*metabolism ; Cells, Cultured ; Cysteine Endopeptidases ; Endopeptidases/*metabolism ; Epoprostenol/*pharmacology ; Humans ; Melanoma/metabolism ; Mice ; Mice, Inbred C57BL ; Neoplasms, Experimental/metabolism ; Papain/pharmacology ; Platelet Aggregation/*drug effects ; Prostaglandins/*pharmacology ; Protease Inhibitors/pharmacology
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  • 115
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    Ti plasmids as gene carriers (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-06-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1982 Jun 18;216(4552):1305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079762" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; *Plant Tumors ; Plants/*genetics ; *Plasmids ; Rhizobium/genetics
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  • 116
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    A new treatment for burn victims (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maugh, T H 2nd -- New York, N.Y. -- Science. 1982 Aug 6;217(4559):522.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089578" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; *Bandages ; *Biological Dressings ; Burns/*therapy ; Cells, Cultured ; Child ; Child, Preschool ; Epidermis/cytology ; Humans ; Surgical Flaps ; Wound Healing
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    Cysteamine: a potent and specific depletor of pituitary prolactin (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-30
    Description: Cysteamine rapidly reduces the concentration of prolactin in pituitary tissue in vivo and in vitro. The effect is dose-dependent, reversible, and cannot be accounted for by prolactin release. Cysteamine does not appear to exert its effect through dopamine receptors and does not alter lactotrope morphology, as determined by electron microscopy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Millard, W J -- Sagar, S M -- Landis, D M -- Martin, J B -- AM 26252/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 30;217(4558):452-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089575" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cysteamine/*pharmacology ; Domperidone/pharmacology ; Dose-Response Relationship, Drug ; Kinetics ; Male ; Pituitary Gland, Anterior/*metabolism ; Prolactin/analysis/*metabolism/secretion ; Rats ; Receptors, Dopamine/physiology ; Spiperone/pharmacology
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    Calcium and age in fibroblasts from control subjects and patients with cystic fibrosis (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-04-23
    Description: Intracellular calcium increases significantly as human fibroblasts age in culture. The calcium increase occurs 5 to 6 weeks (passages) earlier and is significantly greater in fibroblasts from subjects with cystic fibrosis in comparison with cells from control subjects. Intracellular calcium, which is thought to be a pathogenetic factor in cystic fibrosis, may also be a meaningful marker in cell aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shapiro, B L -- Lam, L F -- AG-02114/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 23;216(4544):417-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071590" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Calcium/*metabolism ; *Cell Survival ; Cells, Cultured ; Child ; Cystic Fibrosis/*metabolism/pathology ; Female ; Fibroblasts ; Humans ; Infant ; Male
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    Glucose stimulation of the antilipolytic effect of insulin in humans (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-03
    Description: Dose-response studies of the inhibition of lipolysis by insulin in isolated human adipocytes were conducted with the use of a sensitive bioluminescent assay of glycerol release. The addition of glucose to the incubation medium was associated with an increase in insulin sensitivity and an increase in the maximum insulin effect. The results suggest that glucose plays an important role in regulating the antilipolytic action of insulin in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arner, P -- Bolinder, J -- Ostman, J -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1057-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6342138" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/cytology ; Cells, Cultured ; Dose-Response Relationship, Drug ; Drug Synergism ; Glucose/*pharmacology ; Humans ; Insulin/*pharmacology ; Isoproterenol/pharmacology ; Lipolysis/*drug effects
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    Specific chromosome defect associated with human small-cell lung cancer; deletion 3p(14-23) (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-01-08
    Description: A specific, acquired chromosomal abnormality (deletion 3p) has been found in at least one chromosome 3 in 100 percent of the metaphases in 12 of 12 cell lines cultured from human small-cell lung cancer tissue and in 2-day tumor culture specimens from three patients. Analysis of the shortest region of overlap shows the deletion to be 3p(14-23). This specific change was not seen in five of five lung cancer cell lines other than small-cell lung cancer or in two lymphoblastoid lines cultured from cells of small-cell lung cancer patients whose tumors had the 3p deletion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whang-Peng, J -- Kao-Shan, C S -- Lee, E C -- Bunn, P A -- Carney, D N -- Gazdar, A F -- Minna, J D -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):181-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6274023" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinoma, Small Cell/*genetics ; Cells, Cultured ; *Chromosome Deletion ; Chromosomes, Human, 1-3 ; Humans ; Karyotyping ; Lung Neoplasms/*genetics
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    High efficiency latency and activation of herpes simplex virus in human cells (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-17
    Description: Herpes simplex virus (HSV) exists in humans in a latent form that can be activated. To characterize the molecular basis of the cell-virus interactions and to analyze the state of the latent HSV genome, an in vitro model system was established. In this system a large fraction of the latently infected cells contain an HSV genome that can be activated. Cell survival was reduced minimally after repression of high multiplicity HSV type 1 (HSV-1) infection of human fibroblast cells with (E)-5-(2-bromovinyl)-2'-deoxyuridine in combination with human leukocyte interferon (IFN-alpha). A minimum of 1 to 3 percent of the surviving cells contained an HSV genome that could be activated either by human cytomegalovirus superinfection or reduction in incubation temperature.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wigdahl, B L -- Scheck, A C -- De Clercq, E -- Rapp, F -- CA 09124/CA/NCI NIH HHS/ -- CA 18450/CA/NCI NIH HHS/ -- CA 27503/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 17;217(4565):1145-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6180477" target="_blank"〉PubMed〈/a〉
    Keywords: Bromodeoxyuridine/analogs & derivatives/therapeutic use ; Cells, Cultured ; Cytarabine/pharmacology ; Herpes Simplex/*physiopathology/therapy ; Humans ; Interferons/therapeutic use ; Simplexvirus/*physiology ; Virus Activation ; *Virus Replication/drug effects
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    Fluoride directly stimulates proliferation and alkaline phosphatase activity of bone-forming cells (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-10-21
    Description: Fluoride is one of the most potent but least well understood stimulators of bone formation in vivo. Bone formation was shown to arise from direct effects on bone cells. Treatment with sodium fluoride increased proliferation and alkaline phosphatase activity of bone cells in vitro and increased bone formation in embryonic calvaria at concentrations that stimulate bone formation in vivo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Farley, J R -- Wergedal, J E -- Baylink, D J -- AM31061/AM/NIADDK NIH HHS/ -- AM31062/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 21;222(4621):330-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623079" target="_blank"〉PubMed〈/a〉
    Keywords: Alkaline Phosphatase/*metabolism ; Animals ; Bone Development/*drug effects ; Bone and Bones/*cytology/embryology/enzymology ; Cell Division/drug effects ; Cells, Cultured ; Chick Embryo ; Dose-Response Relationship, Drug ; Fluorides/*pharmacology ; Parathyroid Hormone/pharmacology
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    Cell growth on liquid microcarriers (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-03-25
    Description: Anchorage-dependent cell growth is demonstrated on microcarriers of fluorocarbon fluid formed by emulsification and stabilized with polylysine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keese, C R -- Giaever, I -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1448-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828872" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Cell Division ; *Cell Physiological Phenomena ; Cells, Cultured ; Culture Media ; Emulsions ; Fluorocarbons ; Kinetics
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    Substance P and somatostatin regulate sympathetic noradrenergic function (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-09
    Description: Peptidergic-noradrenergic interactions were examined in explants of rat sympathetic superior cervical ganglia and in cultures of dissociated cells. The putative peptide transmitters substance P and somatostatin each increased the activity of the catecholamine-synthesizing enzyme tyrosine hydroxylase after 1 week of exposure in culture. Maximal increases occurred at 10(-7) molar for each peptide, and either increasing or decreasing the concentration reduced the effects. Similar increases in tyrosine hydroxylase were produced by a metabolically stable agonist of substance P, while a substance P antagonist prevented the effects of the agonist. The data suggest that the increased tyrosine hydroxylase activity was mediated by peptide interaction with specific substance P receptors and that peptides may modulate sympathetic catecholaminergic function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kessler, J A -- Adler, J E -- Black, I B -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1059-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6192502" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacitracin/pharmacology ; Captopril/pharmacology ; Cells, Cultured ; Culture Techniques ; Dose-Response Relationship, Drug ; Ganglia, Sympathetic/*enzymology ; Rats ; Somatostatin/*pharmacology ; Substance P/*pharmacology ; Tyrosine 3-Monooxygenase/*metabolism
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    Action potentials in macrophages derived from human monocytes (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-02-25
    Description: The electrical activity of macrophages derived from human blood monocytes was recorded in vitro with intracellular microelectrodes and was analyzed with computer-assisted data acquisition and analysis techniques. In cells impaled 6 to 8 days after the cultures were prepared, the resting potentials reached a maximum value of -72 millivolts. The cells were electrically excitable; spikes exhibited a slow upstroke, a fast downstroke, a discrete threshold, a large overshoot, and a brief undershoot. Repetitive firing was induced by a maintained depolarizing current. A positive relation was observed between transmembrane currents and resting potential. Voltage-current relations were nonrectifying for subthreshold current injections. Since these cells had not been treated with any specific activation factors, the electrical activity recorded is evidence for the presence of voltage-dependent inward and outward currents in the membranes of mature macrophages. The electrical signals generated by these cells may be useful for the assay of sensor and effector functions of macrophages, such as chemotaxis, receptor-ligand interactions, and phagocytosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCann, F V -- Cole, J J -- Guyre, P M -- Russell, J A -- AM0535/AM/NIADDK NIH HHS/ -- BRSG05392/RS/DRS NIH HHS/ -- CA17323/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):991-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823563" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Cell Differentiation ; Cells, Cultured ; Humans ; Macrophages/*physiology ; Monocytes/cytology
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    Somatomedin-C mediates growth hormone negative feedback by effects on both the hypothalamus and the pituitary (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-06-12
    Description: Somatomedin-C stimulates somatostatin release to a maximum of 390 percent of basal release during short-term (20-minute) incubation of rat hypothalamus. It has no effect on basal or stimulated growth hormone release from primary cultures of rat adenohypophyseal cells during a 4-hour incubation, but inhibits stimulated release by more that 90 percent after 24 hours. These findings suggest that somatomedin-C participates in the growth hormone negative feedback loop with an immediate effect on hypothalamic somatostatin and a delayed effect on the anterior pituitary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berelowitz, M -- Szabo, M -- Frohman, L A -- Firestone, S -- Chu, L -- Hintz, R L -- AM 18722/AM/NIADDK NIH HHS/ -- AM 24085/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1981 Jun 12;212(4500):1279-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6262917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bucladesine/pharmacology ; Cells, Cultured ; Dose-Response Relationship, Drug ; Feedback ; Growth Hormone/pharmacology/*secretion ; Hypothalamus/drug effects/*physiology ; Insulin-Like Growth Factor I ; Kinetics ; Pituitary Gland, Anterior/drug effects/*secretion ; Rats ; Somatomedins/*pharmacology
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    Regeneration of neurites on long-term cultures of sympathetic neurons deprived of nerve growth factor (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-10-30
    Description: Sympathetic neurons from newborn rats, cultured for 1 month or longer in the virtual absence of nonneuronal cells, were capable of regenerating neurites after neuritotomy. Regeneration occurred even after nerve growth factor was withdrawn from the cultures, although it was much less extensive and appeared limited to a few days following neuritotomy. Even after 29 days of nerve growth factor deprivation, reintroduction of the protein prompted a resumption of neurite growth. Possible roles of both nerve growth factor-independent and -dependent components in adult nerve regeneration are discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Campenot, R B -- NS15559/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Oct 30;214(4520):579-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7292000" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation/drug effects ; Cells, Cultured ; Ganglia, Sympathetic/*cytology ; Nerve Growth Factors/*pharmacology ; Nerve Regeneration/*drug effects ; Neurons/*cytology ; Rats ; Time Factors
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    DNA synthesis in cultured adult cardiocytes (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-10-30
    Description: Trypsin-dissociated atrial cardiocytes from adult rats were exposed to [3H]thymidine for sequential 24-hour periods from day 2 to day 12 of culture. On day 3 and each day thereafter, cells were prepared for ultrastructural radioautography and examined with an electron microscope. Maximal incorporation occurred on day 5, when 63 percent of the cardiocytes were labeled. Mitotic activity was never present in more than 0.5 percent of the cardiocytes examined. Incorporation of [3H]thymidine and mitosis occurred only in immature cardiocytes characterized by subsarcolemmal primary filaments and Z bands with or without specific granules; more mature cardiocytes were never labeled.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cantin, M -- Ballak, M -- Beuzeron-Mangina, J -- Anand-Srivastava, M B -- Tautu, C -- New York, N.Y. -- Science. 1981 Oct 30;214(4520):569-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7291996" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Cell Division ; Cells, Cultured ; DNA/*biosynthesis ; Female ; Mitosis ; Myocardium/*cytology ; Rats ; Rats, Inbred Strains ; Time Factors
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    Growth arrest and morphological change of human breast cancer cells by dibutyryl cyclic AMP and L-arginine (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-02
    Description: The growth in vitro of human breast cancer cells, line MCF-7, was inhibited by a daily supplement of L-arginine (1 milligram per milliliter). Arginine acted synergistically with dibutyryl adenosine 3',5'-monophosphate (cyclic AMP) (10(-6) molar) to enhance the growth inhibitory effect: the cell replication ceased completely within 2 days after treatment. The growth arrest accompanied a change in cell morphology and was preceded by increases in the cellular concentration of cyclic AMP, adenylate cyclase, and type II cyclic AMP-dependent protein kinase activities as well as a decrease of estrogen binding activity. The results suggest that growth of human breast cancer cells is subject to cyclic AMP-mediated regulation and that arginine may play a specific role in this process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cho-Chung, Y S -- Clair, T -- Bodwin, J S -- Berghoffer, B -- New York, N.Y. -- Science. 1981 Oct 2;214(4516):77-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6269181" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/*pharmacology ; Breast Neoplasms/metabolism/*pathology ; Bucladesine/*pharmacology ; Cell Division/*drug effects ; Cell Survival/drug effects ; Cells, Cultured ; Cyclic AMP/metabolism ; Drug Synergism ; Female ; *Growth Inhibitors ; Humans
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    Interferon-resistant cell line lacks fatty acid cyclooxygenase activity (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-17
    Description: A clone of L1210 mouse leukemia cells selected for resistance to both the antiviral and anticellular properties of mouse interferon were essentially devoid of fatty acid cyclooxygenase activity. Experiments in which broken cell preparations were mixed or the two cell types were cultivated together failed to indicate the presence of a diffusible enzyme inhibitor. Fatty acid lipoxygenase activity of similar magnitude was detectable in both cell types. A selective impairment of fatty acid cyclooxygenase in interferon-resistant cells is consistent with recently described data suggesting that this enzyme may play a crucial role in mediating the antiviral and anticellular effects of interferon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chandrabose, K A -- Cuatrecasas, P -- Pottathil, R -- Lang, D J -- New York, N.Y. -- Science. 1981 Apr 17;212(4492):329-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6163214" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachidonic Acids/metabolism ; Cells, Cultured ; Clone Cells/drug effects/enzymology ; Cyclooxygenase Inhibitors ; Interferons/*pharmacology ; Leukemia L1210 ; Lipoxygenase/metabolism ; Lipoxygenase Inhibitors ; Mice ; Prostaglandin-Endoperoxide Synthases/*deficiency ; Prostaglandins/biosynthesis
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    Elastin fragments attract macrophage precursors to diseased sites in pulmonary emphysema (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-22
    Description: This study suggests one mechanism by which alveolar macrophages accumulate in the lung in pulmonary emphysema: elastin fragments generated at the diseased sites are potent chemoattractants for monocytes, the precursors of the macrophages. The most chemotactic elastin fragments have a molecular weight between 10,000 and 50,000 and are active at concentrations as low as 3 nanograms per milliliter. By comparison, elastin fragments with higher molecular weights and desmosines are active at concentrations greater than 0.3 microgram per milliliter. In addition, preincubation of monocytes with the 10,000- to 50,000-dalton elastin impairs the ability of the cells to migrate toward elastin fragments but not toward activated serum. Fragments of tropoelastin are not chemotactic for monocytes. Because elastin, but not tropoelastin, contains lysyl-derived cross-links, these structures may be the active chemotactic site on the elastin fragments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hunninghake, G W -- Davidson, J M -- Rennard, S -- Szapiel, S -- Gadek, J E -- Crystal, R G -- New York, N.Y. -- Science. 1981 May 22;212(4497):925-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233186" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Chemotaxis, Leukocyte/*drug effects ; Dose-Response Relationship, Drug ; Elastin/*analogs & derivatives/*pharmacology ; Humans ; Macrophages/physiology ; Monocytes/*physiology ; Peptide Fragments/pharmacology ; Pulmonary Emphysema/*physiopathology ; Structure-Activity Relationship ; Tropoelastin/*pharmacology
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    Binding and mobility of the cell surface receptors for 3,3',5-triiodo-L-thyronine (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-01-02
    Description: A fluorescent derivative of the thyroid hormone 3,3'-triiodo-L-thyronine binds to cultured mouse fibroblasts; such binding is saturable. Video intensification fluorescence microscopy indicates that binding occurs at the plasma membrane. Diffusion coefficients, obtained by fluorescence photobleaching recovery, are consistent with binding to a protein receptor on the cell surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maxfield, F R -- Willingham, M C -- Pastan, I -- Dragsten, P -- Cheng, S Y -- New York, N.Y. -- Science. 1981 Jan 2;211(4477):63-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6255563" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/*metabolism ; Cells, Cultured ; Cytoplasmic Granules/metabolism ; Diffusion ; Endocytosis ; Kinetics ; Membrane Fluidity ; Membrane Proteins/metabolism ; Mice ; Microscopy, Fluorescence ; Receptors, Cell Surface/*metabolism ; Receptors, Thyroid Hormone ; Triiodothyronine/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The posterior pituitary: regulation of anterior pituitary prolactin secretion (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-08-07
    Description: Removal of the posterior pituitary from anesthetized male rats results in a prompt and significant increase in circulating prolactin that is reversed by the injection of dopamine. Posterior pituitary extracts, which contain high concentrations of endogenous dopamine, inhibit prolactin secretion from isolated anterior pituitary cells. This inhibition is prevented by incubation of the cells with the dopamine receptor antagonist (+)-butaclamol. The data show that posterior pituitary dopamine reaches the anterior pituitary via the short hypophysial portal vessels and participates in the regulation of prolactin secretion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peters, L L -- Hoefer, M T -- Ben-Jonathan, N -- HD 14348/HD/NICHD NIH HHS/ -- NS-13234/NS/NINDS NIH HHS/ -- NS-219/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Aug 7;213(4508):659-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256264" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Dopamine/pharmacology/*physiology ; Luteinizing Hormone/secretion ; Male ; Pituitary Gland, Posterior/*physiology ; Prolactin/*secretion ; Rats ; Secretory Rate/drug effects
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  • 134
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    Compartmentalization of cyclic AMP during phagocytosis by human neutrophilic granulocytes (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-01-23
    Description: Immunocytochemistry shows that early during phagocytosis of zymosan, adenosine 3',5'-monophosphate (cyclic AMP) appears on the cell surface before the phagosome is internalized. The appearance of cyclic AMP on the cell surface is coincident with that of granule products and regulatory subunit of type I cyclic AMP-dependent protein kinase. Guanosine 3',5'-monophosphate is not associated with the initiation site of phagocytosis, but is observed throughout the granular cytoplasmic region. This sharply localized accumulation of cyclic AMP may serve as a signal for the initiation of phagocytosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pryzwansky, K B -- Steiner, A L -- Spitznagel, J K -- Kapoor, C L -- 02430-22/PHS HHS/ -- AM17438/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1981 Jan 23;211(4480):407-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6261328" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Compartmentation ; Cells, Cultured ; Cyclic AMP/*metabolism ; Cyclic GMP/metabolism ; Cytoplasmic Granules/metabolism ; Humans ; Lactoferrin/metabolism ; Macromolecular Substances ; Neutrophils/*physiology/ultrastructure ; Peroxidase/metabolism ; *Phagocytosis ; Protein Kinases/metabolism
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  • 135
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    Lectins mimic insulin in the induction of tyrosine aminotransferase (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-11-13
    Description: Various lectins were found to induce tyrosine aminotransferase in H-35 rat hepatoma cells grown in monolayer culture. Wheat germ agglutinin gave a maximal induction of tyrosine aminotransferase 6 hours after its addition. The induction time course was similar to that elicited by insulin. Fourteen micrograms of wheat germ agglutinin per milliliter gave half-maximal enzyme induction and 50 micrograms per milliliter gave the maximal response. The induction of tyrosine aminotransferase by wheat germ agglutinin was additive with the induction by either dexamethasone or dibutyryl adenosine 3',5'-monophosphate, but was not additive with the tyrosine amino transferase induction by insulin. Wheat germ agglutinin also mimicked insulin in the inhibition of cellular protein degradation in the absence of serum. The insulin-like effects of lectins should be considered in lectin-mediated manipulations such as agglutination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, J D -- Liu, A Y -- AM20274/AM/NIADDK NIH HHS/ -- GM 07258/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1981 Nov 13;214(4522):799-800.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6117128" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bucladesine/pharmacology ; Cells, Cultured ; Dexamethasone/pharmacology ; Enzyme Induction/drug effects ; Insulin/*pharmacology ; Lectins/*pharmacology ; Liver/*enzymology ; Liver Neoplasms, Experimental/enzymology ; Peptide Hydrolases/metabolism ; Rats ; Receptor, Insulin/drug effects ; Tyrosine Transaminase/*biosynthesis
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  • 136
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    Plasmodium falciparum gametocytes from culture in vitro develop to sporozoites that are infectious to primates (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-09-10
    Description: Gametocytes of two strains of the human malaria parasite Plasmodium falciparum have been produced in high density by means of a continuous-flow cultivation system. The gametocytes of these two strains infected a mean of 36 percent and 71 percent, respectively, of Anopheles freeborni mosquitoes that fed on a suspension of red blood cells containing the culture gametocytes. Sporozoites harvested from the infected mosquito salivary glands were infective to the chimpanzee (Pan troglodytes) and the owl monkey (Aotus trivirgatus).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Campbell, C C -- Collins, W E -- Nguyen-Dinh, P -- Barber, A -- Broderson, J R -- New York, N.Y. -- Science. 1982 Sep 10;217(4564):1048-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7051285" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/parasitology ; Aotus trivirgatus/parasitology ; Blood/parasitology ; Cells, Cultured ; Culture Media ; Humans ; Pan troglodytes/parasitology ; Plasmodium falciparum/*growth & development ; Salivary Glands/parasitology
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  • 137
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    Nerve fiber growth on defined hydrogel substrates (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-05-21
    Description: Cultured neurons become attached to hydrogel substrates prepared from 2-hydroxyethylmethacrylate but grow few nerve fibers unless fibronectin, collagen, or nerve growth factor is incorporated into the hydrogel. Antibodies to fibronectin inhibit nerve fiber growth on hydrogels containing fibronectin, which suggests that growing neurons interact directly with proteins trapped in the hydrogel. The adhesive requirements for attachment of neurons appear distinct and possibly less specific than those for fiber growth. Defined hydrogel substrates offer a controlled method for analyzing complex substrates that support nerve fiber growth and neuronal differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carbonetto, S T -- Gruver, M M -- Turner, D C -- 2S07RR0540220/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 May 21;216(4548):897-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079743" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Cell Differentiation ; Cells, Cultured ; Chick Embryo ; Collagen/pharmacology ; Culture Media ; Fibronectins/pharmacology ; Nerve Growth Factors/pharmacology ; Neurons/*cytology ; *Polyhydroxyethyl Methacrylate ; *Polymethacrylic Acids
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  • 138
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    Induction of crisis forms in cultured Plasmodium falciparum with human immune serum from Sudan (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-06-11
    Description: Serums from 90 individuals from three areas in Sudan were tested for inhibitory activity against cultures of Plasmodium falciparum. In addition to inhibitory activity against merozoite invasion, all of the serums demonstrated, in varying degrees, the ability to retard intraerythrocyte development, leading to crisis forms and parasite deterioration. These retardation factors could be removed by absorption of immune serum with parasite-infected erythrocytes and were demonstrable in purified immunoglobulin fractions. Serum from donors in hypoendemic Khartoum did not retard parasite development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jensen, J B -- Boland, M T -- Akood, M -- AI-16312/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 11;216(4551):1230-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7043736" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies ; Antigens ; Cells, Cultured ; Erythrocytes/immunology/*parasitology ; Humans ; Immunity ; Malaria/*immunology ; Plasmodium falciparum/growth & development/*immunology/physiology ; Sudan
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  • 139
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    Monoclonal antibody to 5-bromo- and 5-iododeoxyuridine: A new reagent for detection of DNA replication (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-10-29
    Description: Monoclonal antibodies specific for 5-bromodeoxyuridine have been produced and applied in detecting low levels of DNA replication on a cell-by-cell basis in vitro. The immunoglobulin-producing hybridomas were derived from spleen cells of mice immunized with a conjugate of iodouridine and ovalbumin. The cells were fused with the plasmacytoma line SP2/0Ag14. The antibodies produced are highly specific for bromodeoxyuridine and iododeoxyuridine and do not cross-react with thymidine. DNA synthesis in cultured cells exposed to bromodeoxyuridine for as short a time as 6 minutes can be detected easily and rapidly by an immunofluorescent staining method and quantitated by flow cytometry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gratzner, H G -- 5R26CA-15480-09/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 29;218(4571):474-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123245" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Bromodeoxyuridine/*analysis/immunology ; Cells, Cultured ; *DNA Replication ; Flow Cytometry ; Idoxuridine/*analysis/immunology ; Mice
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  • 140
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    Expression of bovine leukemia virus genome is blocked by a nonimmunoglobulin protein in plasma from infected cattle (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-01-22
    Description: Plasma of cattle infected with bovine leukemia virus contains a soluble factor that blocks the expression of the viral genome in cultured lymphocytes. The blocking factor is not present in plasma of bovine leukemia virus-free cattle or of cattle infected with common bovine viruses. Blocking of bovine leukemia virus expression by the plasma factor is reversible, and seems to be mediated by a nonimmunoglobulin protein molecule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gupta, P -- Ferrer, J F -- 3 PO1-CA14193/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 22;215(4531):405-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6276975" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Proteins/pharmacology ; Cattle ; Cattle Diseases/*blood ; Cells, Cultured ; Gene Expression Regulation/drug effects ; Leukemia/*blood ; Leukemia Virus, Bovine/*genetics ; Lymphocytes/microbiology ; Retroviridae/*genetics ; Viral Proteins/biosynthesis/genetics ; Virus Replication
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  • 141
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    Corticotropin-releasing activity of alpha-melanotropin (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-02-05
    Description: Synthetic alpha-melanotropin stimulated the release of immunoreactive adrenocorticotropin from primary cultures of rat anterior pituitary cells. The effect of the alpha-melanotropin was dose-dependent. Cells incubated with synthetic arginine-vasopressin and alpha-melanotropin simultaneously produced an amount of adrenocorticotropin that was greater than the sum of the amount that the cells produced in response to each peptide added separately. Other peptides structurally similar to alpha-melanotropin, such as, beta-, gamma 1-, gamma 2-, and gamma 3-melanotropin, were also tested for adrenocorticotropin-releasing activity. Only the gamma 3-melanotropin demonstrated a statistically significant effect. A vasopressin preparation (Pitressin, Parke-Davis) purified from posterior pituitaries and previously shown to contain some alpha-melanotropin was much more potent in releasing adrenocorticotropin than the synthetic vasopressin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lis, M -- Julesz, J -- Gutkowska, J -- Genest, J -- New York, N.Y. -- Science. 1982 Feb 5;215(4533):675-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6276977" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*secretion ; Animals ; Arginine Vasopressin/pharmacology ; Cells, Cultured ; Drug Synergism ; Hormones/pharmacology ; Melanocyte-Stimulating Hormones/*pharmacology ; Pituitary Gland/*secretion ; Rats ; Secretory Rate/drug effects
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  • 142
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    Viral receptors on isolated murine and human ependymal cells (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-01-22
    Description: Viruses that infect ependyma cause ependymitis in humans and hydrocephalus in experimental animals. We report that reovirus type 1 (which induces hydrocephalus in mice) binds to the surface of isolated human and murine ciliated ependymal cells. With the use of recombinant viral clones, the binding property was mapped to the type 1 viral hemagglutinin, which also determines in vivo the affinity of reovirus type 1 for ependyma. Mumps virus, measles virus, parainfluenza type 3, and herpes simplex virus type 1 bind to murine ependyma cells, whereas reovirus type 3, herpes simplex virus type 2, and poliovirus type 2 do not.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tardieu, M -- Weiner, H L -- 1K07-NS00237/NS/NINDS NIH HHS/ -- NSAI-16998/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 22;215(4531):419-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6276976" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Ependyma/*metabolism/microbiology ; Hemagglutinins, Viral/metabolism ; Humans ; Hydrocephalus/microbiology ; Measles virus/metabolism ; Mice ; Mumps virus/metabolism ; Parainfluenza Virus 3, Human/metabolism ; Receptors, Virus/*metabolism ; Reoviridae/*metabolism ; Simplexvirus/metabolism
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  • 143
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    Quantitative electron microscopic autoradiography of insulin, glucagon, and somatostatin binding sites on islets (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-09-17
    Description: After monolayer cultures of rat islets were exposed to [(125)I]insulin,[(125)I]glucagon, and [(125)I]tyrosinyl somatostatin, specific autoradiographic grains associated with each radioactively labeled ligand were found on B, A, and D cells. The density of labeling of the B, A, and D cells with each labeled ligand correlated well with the known actions of the three hormones on each of the islet cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Patel, Y C -- Amherdt, M -- Orci, L -- AM 21373/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 17;217(4565):1155-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6126003" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Islets of Langerhans/cytology/*metabolism/ultrastructure ; Microscopy, Electron ; Rats ; Receptor, Insulin/*metabolism ; Receptors, Cell Surface/*metabolism ; Receptors, Glucagon ; Receptors, Somatostatin ; Somatostatin/metabolism
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  • 144
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    Cooperation between oncogenes. Investigators focus on cooperation between two or more oncogenes to help explain the multistep development of human cancers (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Nov 11;222(4624):602-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6635658" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle ; Cells, Cultured ; Mice ; *Oncogenes ; Platelet-Derived Growth Factor/*genetics
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  • 145
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    RNA splice site selection: evidence for a 5' leads to 3' scanning model (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-06-24
    Description: Human G gamma-globin genes containing tandem duplications of the donor (5') or acceptor (3') RNA splice sites of the second intervening sequence were constructed in order to ascertain the directionality of RNA splice site selection. These genes were introduced into cultured monkey cells, and their transcripts were analyzed. Transcripts of these duplication variants were spliced only at the proximal copy of the duplicated splice sites. These data are consistent with a 5' leads to 3' model of splice site selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lang, K M -- Spritz, R A -- AM28598/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1351-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304877" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cells, Cultured ; Globins/genetics ; Haplorhini ; Humans ; Plasmids ; *RNA Splicing ; RNA, Messenger/genetics/physiology ; Simian virus 40/genetics ; Transcription, Genetic
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  • 146
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    Vasoactive intestinal peptide alters membrane potential and cyclic nucleotide levels in retinal horizontal cells (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-09
    Description: Vasoactive intestinal peptide stimulated the synthesis of adenosine 3',5'-monophosphate in fractions of isolated carp horizontal cells. When applied extracellularly to isolated and cultured horizontal cells, the peptide also induced a slow depolarization (30 to 40 millivolts) accompanied by a decrease in membrane resistance. However, analogs of adenosine 3',5'-monophosphate applied extracellularly or intracellularly, and forscolin applied extracellularly, had no effect on the membrane potential of cultured horizontal cells, indicating that the induced depolarization was not related to the accumulation of adenosine 3',5'-monophosphate in these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lasater, E M -- Watling, K J -- Dowling, J E -- EY-00811/EY/NEI NIH HHS/ -- EY-00824/EY/NEI NIH HHS/ -- EY-05476/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 9;221(4615):1070-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6308770" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carps ; Cells, Cultured ; Cyclic AMP/*metabolism ; Dopamine/pharmacology ; Gastrointestinal Hormones/*pharmacology ; Kainic Acid/pharmacology ; Membrane Potentials/*drug effects ; Retina/*drug effects/physiology ; Vasoactive Intestinal Peptide/*pharmacology
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  • 147
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    Evidence for the recessive nature of cellular immortality (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-02
    Description: Fusion of immortal cell lines with normal human fibroblasts or certain other immortal cell lines yields hybrids having limited division potential. Cellular immortality was found to be a recessive phenotype in hybrids. It was also found that at least two separate events in the normal cell genome can result in immortality. In fusions involving certain immortal parent cells, these events can be complemented to result in hybrids with finite division capacity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pereira-Smith, O M -- Smith, J R -- AG 03262/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 2;221(4614):964-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879195" target="_blank"〉PubMed〈/a〉
    Keywords: *Cell Division ; Cell Line ; *Cell Survival ; Cells, Cultured ; Genes, Recessive ; Humans ; Hybrid Cells/*physiology ; Phenotype
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  • 148
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    Activation of 2-aminofluorene by cultured plant cells (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-03-25
    Description: Cultured tobacco plant cells activated 2-aminofluorene to an agent mutagenic to Salmonella typhimurium strain TA98. The plant activation of 2-aminofluorene is heat-inactivated and may not involve solely cytochrome P-450. The kinetics of activation demonstrated both time- and concentration-dependent responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Plewa, M J -- Weaver, D L -- Blair, L C -- Gentile, J M -- ES02384/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1427-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6338591" target="_blank"〉PubMed〈/a〉
    Keywords: Biotransformation ; Cells, Cultured ; Fluorenes/*metabolism/pharmacology ; Kinetics ; Mutagenicity Tests ; Mutagens/*metabolism ; *Mutation ; *Plants, Toxic ; Salmonella typhimurium/drug effects ; Tobacco/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Isolation and transmission of human retrovirus (human t-cell leukemia virus) (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-18
    Description: Nine new isolates of human T-cell leukemia-lymphoma virus (HTLV) were obtained from cells of seven patients with malignancies of mature T cells and from two clinically normal relatives of a T-cell leukemia patient. These people were from the United States, Israel, the West Indies, and Japan. The virus was detected in the fresh T cells and was isolated from the established T-cell lines. Each isolate is closely related to the first HTLV isolate, and all the new HTLV isolates were transmitted into normal human T cells obtained from the umbilical cord blood of newborns.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Popovic, M -- Sarin, P S -- Robert-Gurroff, M -- Kalyanaraman, V S -- Mann, D -- Minowada, J -- Gallo, R C -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):856-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6600519" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cells, Cultured ; Female ; Humans ; Leukemia/*microbiology ; Male ; Retroviridae/growth & development/*isolation & purification ; T-Lymphocytes/*microbiology
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    Mobilization of cellular calcium-45 and lead-210: effect of physiological stimuli (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-15
    Description: Isolated rat hepatocytes in primary culture were used as a model system to evaluate the effects of selected hormones and culture conditions on the efflux of calcium-45 and lead-210 from cells labeled with these isotopes. Alpha-adrenergic stimuli, angiotensin, vasopressin, dibutyryl adenosine 3',5'-monophosphate, and reduced phosphate concentrations in the medium increased the efflux of calcium-45 and lead-210. Glucagon and insulin had no effect, but increased phosphate concentrations decreased the efflux of both isotopes. Experiments with hepatocytes cultured in a medium free of calcium and lead demonstrated that the increased efflux of calcium-45 and lead-210 induced by hormones was the result of mobilization of the ions from intracellular stores. The data indicate that the physiological stimuli that mobilized calcium ions also mobilized lead ions, and that the mobilized lead would be available to interact with calcium-mediated cell functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pounds, J G -- Mittelstaedt, R A -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):308-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301003" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensin II/pharmacology ; Animals ; Bucladesine/pharmacology ; Calcium Radioisotopes/*metabolism ; Cells, Cultured ; Epinephrine/pharmacology ; Insulin/pharmacology ; Lead/*metabolism ; Liver/cytology ; Phosphates/pharmacology ; Propranolol/pharmacology ; Radioisotopes ; Rats ; Vasopressins/pharmacology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 151
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    Irreversible ligands with high selectivity toward delta and mu opiate receptors (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-15
    Description: Alkylating agents that display strong selectivity for opiate receptor types delta or mu were prepared by appropriate modification of the structures of the strong analgesics fentanyl, etonitazene, and endoethenotetrahydrooripavine. The availability of these substances should facilitate studies of the structural basis of receptor specificity and of the physiologic roles of these receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rice, K C -- Jacobson, A E -- Burke, T R Jr -- Bajwa, B S -- Streaty, R A -- Klee, W A -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):314-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6132444" target="_blank"〉PubMed〈/a〉
    Keywords: Alkylation ; Animals ; Benzimidazoles/analogs & derivatives/metabolism ; Brain/physiology ; Cells, Cultured ; Chemical Phenomena ; Chemistry ; Enkephalin, Methionine/analogs & derivatives/metabolism ; Fentanyl/analogs & derivatives/metabolism ; *Isothiocyanates ; Ligands ; Rats ; Receptors, Opioid/*metabolism/physiology ; Thebaine/analogs & derivatives/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 152
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    Modulation of the metastatic capability in B16 melanoma by cell shape (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-23
    Description: The lung colonization of B16-F1 cells grown in flat and spherical configurations was studied. Cells cultivated in vitro as spheroids on a nonadhesive substrate expressed in a reversible fashion a marked increase in their propensity to establish metastases. The altered metastatic capability was accompanied by a reversible reduction in the accessibility of cell surface proteins to external iodination and by a dramatic decrease in the synthesis of vimentin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raz, A -- Ben-Ze'ev, A -- New York, N.Y. -- Science. 1983 Sep 23;221(4617):1307-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612347" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Cell Division ; Cells, Cultured ; Intermediate Filament Proteins/biosynthesis ; Lung Neoplasms/secondary ; Melanoma/*pathology ; Membrane Proteins/physiology ; Mice ; *Neoplasm Metastasis ; Neoplasm Proteins/physiology ; Neoplasms, Experimental/pathology ; Vimentin
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  • 153
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    Activation of the transforming potential of a normal cell sequence: a molecular model for oncogenesis (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-22
    Description: The molecularly cloned, long terminal repeat (LTR) of the Moloney sarcoma virus (M-MSV) provirus has been covalently linked to c-mos, the cellular homolog of the M-MSV-specific sequence, v-mos. These newly constructed clones lack any M-MSV-derived sequences other than the LTR, but in DNA transfection assays they transform cells as efficiently as cloned subgenomic M-MSV fragments containing both v-mos and LTR. Cells transformed by LTR:c-mos hybrid molecules contain additional copies of mos DNA, and several size classes of polyadenylated RNA's with sequence homology to mos. The activation of the transforming potential of c-mos by the proviral LTR suggests a model whereby LTR-like elements could activate other normal cell sequences with oncogenic potential.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blair, D G -- Oskarsson, M -- Wood, T G -- McClements, W L -- Fischinger, P J -- Vande Woude, G G -- New York, N.Y. -- Science. 1981 May 22;212(4497):941-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233190" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Transformation, Viral ; Cells, Cultured ; DNA, Recombinant ; Defective Viruses/genetics ; Gene Expression Regulation ; *Genes, Viral ; Mice ; Moloney murine leukemia virus/*genetics ; Nucleic Acid Hybridization ; Operon ; Plasmids
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  • 154
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    Regulation of muscle differentiation: stimulation of myoblast fusion in vitro by catecholamines (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-18
    Description: Epinephrine and isoproterenol provoke primary chick myoblasts to initiate precocious cell fusion. Both the rise in intracellular adenosine 3' ,5-monophosphate (cyclic AMP) and cell fusion generated by these effectors are prevented by propranolol, which is a specific blocker of the beta-adrenergic receptor. Propranolol has no effect either on the precocious cell fusion provoked by prostaglandin E or on cell fusion in control cultures. The results support the idea that a rise in cyclic AMP is the critical intracellular change responsible for initiating events that culminate in myoblast differentiation 4 to 5 hours later. They also indicate that the culminate in myoblast differentiation 4 to 5 hours later. They also indicate that the hormone responsible for the positive regulation of myoblast differentiation in vitro is not acting through the beta-adrenergic receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Curtis, D H -- Zalin, R J -- New York, N.Y. -- Science. 1981 Dec 18;214(4527):1355-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6274017" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catecholamines/*pharmacology ; Cell Differentiation/drug effects ; Cell Fusion/*drug effects ; Cells, Cultured ; Chick Embryo ; Cyclic AMP/metabolism ; Epinephrine/pharmacology ; Isoproterenol/pharmacology ; Muscles/*cytology ; Propranolol/pharmacology ; Prostaglandins E/pharmacology ; Receptors, Adrenergic, beta/drug effects ; Stimulation, Chemical
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  • 155
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    Tritiated thymidine incorporation does not measure DNA synthesis in ribavirin-treated human cells (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-05-01
    Description: When the incorporation of tritiated thymidine into acid insoluble material was measured, ribavirin appeared to be a potent inhibitor of DNA synthesis in KB cells and human lymphocytes. Inhibition was nearly 100-fold less, however, when DNA synthesis was measured by incorporation of phosphorus-32-labeled phosphate or by DNA fluorescence. The potent inhibition detected by incorporation of tritiated thymidine into DNA actually was the result of a potent effect on the labeling of deoxythymidine triphosphate, not on the synthesis of DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drach, J C -- Thomas, M A -- Barnett, J W -- Smith, S H -- Shipman, C Jr -- DE 02731/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1981 May 1;212(4494):549-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209549" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; DNA/*biosynthesis ; DNA Replication/*drug effects ; Humans ; Lymphocytes/metabolism ; Phosphates/metabolism ; Ribavirin/*pharmacology ; Ribonucleosides/*pharmacology ; Thymidine/*metabolism ; Thymine Nucleotides/biosynthesis
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  • 156
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    Optical recording of calcium action potentials from growth cones of cultured neurons with a laser microbeam (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-06-05
    Description: Simultaneous recordings of calcium action potentials directly from growth cones and from somata of neuroblastoma cells indicated that they could be generated in the neurites at or near growth cones. Growth cone responses were measured with a fluorescent voltage-sensitive dye and a 5-milliwatt helium-neon laser microbeam as a monitoring light source.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grinvald, A -- Farber, I C -- NS14716/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Jun 5;212(4499):1164-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233210" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Animals ; Calcium/*pharmacology ; Cells, Cultured ; Chickens ; Evoked Potentials/drug effects ; Kinetics ; Lasers ; Microscopy, Fluorescence ; Neurons/drug effects/*physiology
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  • 157
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    Suppression of immunity by stress: effect of a graded series of stressors on lymphocyte stimulation in the rat (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-18
    Description: In rats a graded series of stressors produced progressively greater suppression of lymphocyte function, as measured by the number of circulating lymphocytes and by phytohemagglutinin stimulation of lymphocytes in whole blood and isolated cultures. This evidence suggests that stress suppresses immunity in proportion to the intensity of the stressor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Keller, S E -- Weiss, J M -- Schleifer, S J -- Miller, N E -- Stein, M -- New York, N.Y. -- Science. 1981 Sep 18;213(4514):1397-400.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6973822" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Electroshock ; *Immune Tolerance ; Leukocyte Count ; Lymphocyte Activation ; Phytohemagglutinins/pharmacology ; Rats ; Stress, Physiological/*immunology ; T-Lymphocytes/immunology
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  • 158
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    Gonadotropin-releasing hormone: regulation of adenosine 3',5'-monophosphate in ovarian granulosa cells (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-12-18
    Description: The antigonadal effects of gonadotropin-releasing hormone in ovarian granulosa cells are due to attenuation of the adenosine 3',5'-monophosphate (cyclic AMP) response to follicle-stimulating hormone. Agonists of gonadotropin-releasing hormone progressively inhibit adenylate cyclase and stimulate phosphodiesterase activities in cultured granulosa cells, indicating that blockade of gonadotropin action is attributable to the combined effects of decreased production and increased degradation of cyclic AMP.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knecht, M -- Catt, K J -- 5 F32 HDO5801/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1981 Dec 18;214(4527):1346-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6274016" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cyclic AMP/*metabolism ; Enzyme Activation/drug effects ; Female ; Follicle Stimulating Hormone/antagonists & inhibitors ; *Granulosa Cells/*drug effects/metabolism ; *Hypophysectomy ; Phosphodiesterase Inhibitors/*pharmacology ; Phosphoric Diester Hydrolases/*metabolism ; Pituitary Hormone-Releasing Hormones/*pharmacology ; Rats
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  • 159
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    Specific antigen in serum of patients with colon carcinoma (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-04-03
    Description: The binding of monoclonal antibody specific for colon carcinoma was inhibited by serum from patients with adenocarcinoma of the colon but not by serum from patients with other bowel diseases or from healthy volunteers. Of other malignancies studied, serum from two patients with gastric carcinoma and two patients with pancreatic carcinoma also inhibited the specific binding of monoclonal antibody. The levels of carcinoembryonic antigen in these serum samples were not correlated with their levels of binding inhibition. Such monoclonal antibodies may prove useful for the detection of colorectal carcinoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koprowski, H -- Herlyn, M -- Steplewski, Z -- Sears, H F -- CA-21124/CA/NCI NIH HHS/ -- RR-05540/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):53-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6163212" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/*immunology ; Adult ; Aged ; Antibodies, Neoplasm/immunology ; Antibody Specificity ; Antigens, Neoplasm/*analysis ; Binding, Competitive ; Carcinoembryonic Antigen/analysis ; Cells, Cultured ; Colonic Neoplasms/*immunology ; Epitopes ; Female ; Humans ; Intestinal Diseases/immunology ; Male ; Middle Aged ; Neoplasms/immunology
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  • 160
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    Increased pyrophosphate in fibroblasts and lymphoblasts from patients with hereditary diffuse articular chondrocalcinosis (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-11-13
    Description: The metabolic and genetic factors leading to deposition of calcium pyrophosphate crystals in cartilage of patients with chondrocalcinosis are not well understood. Analysis of cultured fibroblasts and lymphoblasts from 12 affected members of a large kindred showed a mean concentration of intracellular inorganic pyrophosphate two times greater than that in cells from unaffected family members or normal, unrelated volunteers. Increased intracellular pyrophosphate may, therefore, be a biochemical marker for the heterozygous expression of the chondrocalcinosis gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lust, G -- Faure, G -- Netter, P -- Seegmiller, J E -- AM13622/AM/NIADDK NIH HHS/ -- GM17702/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1981 Nov 13;214(4522):809-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6270793" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Chondrocalcinosis/genetics/*metabolism ; Diphosphates/*metabolism ; Fibroblasts/*metabolism ; Humans ; Lymphocytes/*metabolism
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  • 161
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    Cellular aging: further evidence for the commitment theory (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-09-25
    Description: A large, transient reduction in the population size of human fibroblasts in early passages significantly increases the variability of the life-spans of cultures in comparison to control cultures, as predicted by the commitment theory of cellular aging. The theory also predicts that a constant population of noncycling cells will appear in the later part of the culture life-span. This was confirmed by labeling the cells in culture with tritiated thymidine.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holliday, R -- Huschtscha, L I -- Kirkwood, T B -- New York, N.Y. -- Science. 1981 Sep 25;213(4515):1505-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7280670" target="_blank"〉PubMed〈/a〉
    Keywords: *Cell Division ; *Cell Survival ; Cells, Cultured ; Fibroblasts/*physiology ; Humans ; Lung/cytology ; Probability
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  • 162
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    Choline stimulates nicotinic receptors on adrenal medullary chromaffin cells to induce catecholamine secretion (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-23
    Description: Choline stimulated secretion of catecholamines from primary dissociated cultures of bovine adrenal medullary chromaffin cells by interacting with nicotinic receptors. Secretion was readily detected at a choline concentration of 1 millimole per liter and was maximal at 3 to 10 millimoles per liter; it was completely calcium-dependent. Further analysis suggested that choline acts as a partial nicotinic agonist.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holz, R W -- Senter, R A -- 1 ROAM-27959-01/OA/SAMHSA HHS/ -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):466-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7291988" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/antagonists & inhibitors ; Adrenal Medulla/*physiology ; Animals ; Catecholamines/*secretion ; Cattle ; Cells, Cultured ; Choline/*pharmacology ; Chromaffin System/*physiology ; Exocytosis/drug effects ; Receptors, Cholinergic/*drug effects ; Receptors, Nicotinic/*drug effects
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  • 163
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    Contractility of bile canaliculi: implications for liver function (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-05-29
    Description: Dynamic contractions of bile canaliculi were observed in groups of cultured hepatocytes by time-lapse cinephotomicrography during the early stages of monolayer formation. The contractions, which were forceful and appeared to have a pumping action, may facilitate the flow of bile in the liver's canalicular system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oshio, C -- Phillips, M J -- New York, N.Y. -- Science. 1981 May 29;212(4498):1041-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7015506" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bile/*physiology ; Cells, Cultured ; Cytoskeleton/*physiology/ultrastructure ; Liver/*physiology ; Male ; Microscopy, Phase-Contrast ; Rats
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  • 164
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    Journey to the center of the cell: role of the receptosome (1981)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1981-10-30
    Description: Fibroblasts contain a specific internalization pathway that carries hormones as well as some proteins and viruses from the cell surface to the cell interior. Initially, the ligands bind to mobile receptors that are randomly distributed on the cell surface. Next the ligand-receptor complexes are trapped and concentrated in specialized regions of the membrane termed bristle-coated pits. From the pit a smooth-walled vesicle containing the ligand forms and carries the ligand to the cell interior. Because of its role in receptor-mediated endocytosis, this vesicle has been termed a "receptosome."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pastan, I H -- Willingham, M C -- New York, N.Y. -- Science. 1981 Oct 30;214(4520):504-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6170111" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Compartmentation ; Cells, Cultured ; Clathrin ; Cytoplasm/physiology ; *Endocytosis ; Exocytosis ; Fibroblasts/*physiology ; Ligands ; Membrane Fluidity ; Membrane Proteins/metabolism ; Mice ; Microscopy, Fluorescence ; Receptors, Drug/*physiology ; alpha-Macroglobulins/metabolism ; gamma-Glutamyltransferase/metabolism
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    Ganglioside stimulation of axonal sprouting in vitro (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-10-30
    Description: Bovine brain gangliosides were applied to primary and established neuronal cultures to examine the role of gangliosides in neuronal development. Media containing gangliosides enhanced the degree of axonal elongation exhibited by sensory ganglia neurons and increased the length and number of Neuro-2a neuroblastoma cell processes. Ganglioside-supplemented media caused a twofold increase in ornithine decarboxylase activity in both culture systems. These experiments suggest that gangliosides function as acceptor molecules for growth-promoting substances in embryonic and tumor-derived neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roisen, F J -- Bartfeld, H -- Nagele, R -- Yorke, G -- NS 11299/NS/NINDS NIH HHS/ -- NS 11605/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Oct 30;214(4520):577-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7291999" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Cells, Cultured ; Chick Embryo ; Enzyme Induction/drug effects ; Ganglia, Spinal/embryology ; Gangliosides/*physiology ; Microscopy, Electron, Scanning ; Neurons/*cytology/ultrastructure ; Ornithine Decarboxylase/biosynthesis
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  • 166
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    Alcohol-dependent liver cell necrosis in vitro: a new model (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-04-17
    Description: In alcoholic liver injury, necrosis is involved in the progression from benign fatty liver to alcoholic hepatitis and cirrhosis. However, there is no practical model of alcohol-dependent liver cell necrosis. The calcium-dependent killing of cultured rat hepatocytes by two different membrane-active hepatotoxins, galactosamine and phalloidin, is potentiated by ethyl alcohol. This indicates that some general physical effect of alcohol on cellular membranes renders cells susceptible to otherwise nonlethal injuries. The in vitro model described in this report may thus be used to search for a general mechanism underlying alcohol-related tissue injury.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schanne, F A -- Zucker, A H -- Farber, J L -- Rubin, E -- AA 03442/AA/NIAAA NIH HHS/ -- AM 19154/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1981 Apr 17;212(4492):338-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209533" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/pharmacology ; Cell Membrane/drug effects ; Cells, Cultured ; Drug Synergism ; Ethanol/pharmacology ; Female ; Galactosamine/pharmacology ; In Vitro Techniques ; Liver/drug effects ; Liver Diseases, Alcoholic/*pathology ; Necrosis ; Phalloidine/pharmacology ; Rats
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  • 167
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    Normalization by cell fusion of sister chromatid exchange in Bloom syndrome lymphocytes (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-05-15
    Description: Fusion of fresh lymphocytes from a Bloom syndrome (BS) patient with those of normal subjects or a BS heterozygote resulted in complete normalization of the frequency of sister chromatid exchanges in the chromosomes of BS cells. This normalization took place by the first mitosis in hybrid cells. In contrast, cultivation of BS lymphocytes with those of normal subjects or the BS heterozygote had no effect on sister chromatid exchanges. The cell fusion experiments suggest that the normalization on the sister chromatid exchanges. The cell fusion experiments suggest that the normalization of the sister chromatid exchange frequencies in BS cells can be achieved by factors conserved in the cells of various mammalian species. These findings are compatible with the concept that BS is a recessive genetic mutation at regulatory levels of the DNA repair function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shiraishi, Y -- Matsui, S -- Sandberg, A A -- CA-14555/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1981 May 15;212(4496):820-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7221565" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Fusion ; Cells, Cultured ; *Crossing Over, Genetic ; Humans ; Hybrid Cells/physiology ; Photosensitivity Disorders/*genetics ; *Sister Chromatid Exchange ; Syndrome ; Telangiectasis/*genetics
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  • 168
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    Toxic injury to isolated hepatocytes is not dependent on extracellular calcium (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-09-11
    Description: Freshly isolated hepatocytes from phenobarbital-treated rats were incubated in the presence or absence of extracellular calcium with three differently acting liver cell toxins, namely carbon tetrachloride, bromobenzene, and ethylmethanesulfonate. In the absence of extracellular calcium these three compounds were far more toxic to the cells than in its presence. This result is inconsistent with the hypothesis that an influx of extracellular calcium is required as the final step in toxic liver cell injury.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, M T -- Thor, H -- Orrenius, S -- New York, N.Y. -- Science. 1981 Sep 11;213(4513):1257-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7268433" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bromobenzenes/*toxicity ; Calcium/*metabolism ; Carbon Tetrachloride Poisoning/*physiopathology ; Cell Survival ; Cells, Cultured ; Ethyl Methanesulfonate/*toxicity ; Extracellular Space/metabolism ; Humans ; Liver/*drug effects/pathology ; Rats
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  • 169
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    DNA strand breakage in human leukocytes exposed to a tumor promoter, phorbol myristate acetate (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-03-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Birnboim, H C -- New York, N.Y. -- Science. 1982 Mar 5;215(4537):1247-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6276978" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Survival/drug effects ; Cells, Cultured ; Cocarcinogenesis ; *Dna ; Free Radicals ; Humans ; Kinetics ; Leukocytes/*drug effects ; Oxygen Consumption/drug effects ; Phorbols/*pharmacology ; Superoxides/metabolism ; Tetradecanoylphorbol Acetate/*pharmacology
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  • 170
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    Bleb formation in hepatocytes during drug metabolism is caused by disturbances in thiol and calcium ion homeostasis (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-24
    Description: A wide variety of toxic chemicals cause blebbing of the plasma membrane in isolated hepatocytes. These alterations in surface structure occur well before cell death. The formation of blebs appears to be directly related to changes in the concentration of extramitochondrial calcium ions. These changes probably reduce the ability of the hepatocyte cytoskeleton to maintain normal surface morphology. The concentration of soluble thiols, notably glutathione, appears to regulate the size of the extramitochondrial calcium ion pool. Disturbances in intracellular thiol and calcium ion homeostasis therefore seem to be responsible for the surface blebbing observed during toxic injury to isolated hepatocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jewell, S A -- Bellomo, G -- Thor, H -- Orrenius, S -- Smith, M -- New York, N.Y. -- Science. 1982 Sep 24;217(4566):1257-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7112127" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/*physiology ; Cell Membrane/*physiology ; Cells, Cultured ; Cytoplasm/physiology ; Glutathione/physiology ; Homeostasis ; Liver/*drug effects/physiology/ultrastructure ; Male ; Mitochondria, Liver/physiology ; Rats ; Sulfhydryl Compounds/*physiology
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  • 171
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    Is the acetylcholine receptor a rabies virus receptor? (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-01-08
    Description: Rabies virus was found on mouse diaphragms and on cultured chick myotubes in a distribution coinciding with that of the acetylcholine receptor. Treatment of the myotubes with alpha-bungarotoxin and d-tubocurarine before the addition of the virus reduced the number of myotubes that became infected with rabies virus. These findings together suggest that acetylcholine receptors may serve as receptors for rabies virus. The binding of virus to acetylcholine receptors, which are present in high density at the neuromuscular junction, would provide a mechanism whereby the virus could be locally concentrated at sites in proximity to peripheral nerves facilitating subsequent uptake and transfer to the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lentz, T L -- Burrage, T G -- Smith, A L -- Crick, J -- Tignor, G H -- AI 11132/AI/NIAID NIH HHS/ -- AI 12541/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):182-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053569" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/metabolism ; Acetylcholinesterase/metabolism ; Animals ; Binding, Competitive ; Bungarotoxins/metabolism ; Cells, Cultured ; Chick Embryo ; Diaphragm ; Mice ; Microscopy, Electron ; Neuromuscular Junction/*metabolism ; Rabies virus/*metabolism ; Receptors, Cholinergic/*metabolism ; Receptors, Virus/*metabolism ; Tubocurarine/metabolism
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  • 172
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    Monoclonal antibodies to hypothalamic growth hormone-releasing factor with picomoles of antigen (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-11-26
    Description: Monoclonal antibodies specific for rat hypothalamic growth hormone-releasing factor (rGRF) have been produced by in vitro immunization of mouse spleen cells with less than 1 nanomole of rGRF in a partially purified preparation. Hybridoma supernatants were screened for anti-rGRF activity by use of a pituitary culture assay system that can detect growth hormone-releasing factor in the femtomole range. Such highly sensitive in vitro techniques permit the use of picomole quantities of an antigen in partially purified preparations for the isolation of monoclonal antibodies, which can in turn be used in biological studies and in immunochemical procedures for large-scale purification and isolation of that antigen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luben, R A -- Brazeau, P -- Bohlen, P -- Guillemin, R -- AD 09690-07/AD/ADAMHA HHS/ -- AM 18811-07/AM/NIADDK NIH HHS/ -- DE 00057/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1982 Nov 26;218(4575):887-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6813967" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*immunology ; Antibody Specificity ; Cells, Cultured ; Dose-Response Relationship, Immunologic ; Growth Hormone-Releasing Hormone/*immunology ; Hybridomas/*immunology ; Mice ; Rats
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  • 173
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    A new tumor-promoting agent, dihydroteleocidin B, markedly enhances chemically induced malignant cell transformation (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-04-30
    Description: Teleocidin, which was isolated from mycelia of Streptomyces, is a potent tumor promoter in mouse skin. The catalytically hydrogenated compound dihydroteleocidin B markedly enhanced malignant cell transformation induced by 3-methylcholanthrene or ultraviolet radiation. Dihydroteleocidin B was at least 100 times more effective in enhancing transformation than 12-O-tetradecanoyl phorbol-13-acetate, the strongest promoter known until now, whereas both promoters showed equal capacities to induce early membrane effects and DNA synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hirakawa, T -- Kakunaga, T -- Fujiki, H -- Sugimura, T -- New York, N.Y. -- Science. 1982 Apr 30;216(4545):527-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6280280" target="_blank"〉PubMed〈/a〉
    Keywords: Alkaloids/*pharmacology ; Animals ; Carcinogens/*pharmacology ; Cell Division/drug effects ; Cell Transformation, Neoplastic/*drug effects ; Cells, Cultured ; Epidermal Growth Factor/metabolism ; *Lyngbya Toxins ; Methylcholanthrene ; Mice ; Receptor, Epidermal Growth Factor ; Receptors, Cell Surface/metabolism
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    New focus on replacing animals in the lab (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-01-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holden, C -- New York, N.Y. -- Science. 1982 Jan 1;215(4528):35-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053557" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Laboratory ; Cells, Cultured ; Legislation as Topic ; Research Design
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  • 175
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    Human cell hybrids: analysis of transformation and tumorigenicity (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-01-15
    Description: Intraspecific human-human cell hybrids provide a stable model system with which to investigate the genetic control of transformed and tumorigenic phenotypes. Using this system it has been shown that these phenotypes are under separate genetic control. Furthermore, the tumorigenic phenotype can be complemented by fusion of different tumorigenic cells, resulting in nontumorigenic hybrids. This system also provides information on the control of differentiated function. Molecular cytogenetic techniques should reveal the nature of the chromosomal control of neoplastic transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanbridge, E J -- Der, C J -- Doersen, C J -- Nishimi, R Y -- Peehl, D M -- Weissman, B E -- Wilkinson, J E -- CA09054/CA/NCI NIH HHS/ -- CA19401/CA/NCI NIH HHS/ -- GM07134/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1982 Jan 15;215(4530):252-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053574" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Division ; Cell Transformation, Neoplastic/*pathology ; Cell Transformation, Viral ; Cells, Cultured ; Fibronectins/metabolism ; Humans ; *Hybrid Cells/pathology ; Karyotyping ; Mice ; Mice, Nude ; Neoplasms/*genetics/pathology ; Neoplasms, Experimental/pathology ; Phenotype
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  • 176
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    Nucleotide sequence of the oncogene encoding the p21 transforming protein of Kirsten murine sarcoma virus (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-03
    Description: The transforming protein of Kirsten murine sarcoma virus (Ki-MuSV) is a virally encoded 21-kilodalton protein called p21 kis. The sequences encoding p21 kis were genetically localized to a 1.3-kilobase segment near the 5' end of the viral genome by assaying the capacity of a series of defined deletion mutants of molecularly cloned Ki-MuSV DNA to induce focal transformation of mouse cells. Nucleotide sequencing of a portion of this region has led to the identification of an open reading frame of 567 nucleotides coding for p21 kis protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsuchida, N -- Ryder, T -- Ohtsubo, E -- CA-22701/CA/NCI NIH HHS/ -- CA21124/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 3;217(4563):937-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6287573" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Transformation, Viral ; Cells, Cultured ; DNA Restriction Enzymes ; DNA, Recombinant ; DNA, Viral/genetics ; Genes, Viral ; Kirsten murine sarcoma virus/*genetics ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Mutation ; Oncogene Protein p21(ras) ; RNA, Viral/genetics ; Sarcoma Viruses, Murine/*genetics ; Viral Proteins/*genetics
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  • 177
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    Isolation of a T-lymphotropic retrovirus from a patient at risk for acquired immune deficiency syndrome (AIDS) (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-05-20
    Description: A retrovirus belonging to the family of recently discovered human T-cell leukemia viruses (HTLV), but clearly distinct from each previous isolate, has been isolated from a Caucasian patient with signs and symptoms that often precede the acquired immune deficiency syndrome (AIDS). This virus is a typical type-C RNA tumor virus, buds from the cell membrane, prefers magnesium for reverse transcriptase activity, and has an internal antigen (p25) similar to HTLV p24. Antibodies from serum of this patient react with proteins from viruses of the HTLV-I subgroup, but type-specific antisera to HTLV-I do not precipitate proteins of the new isolate. The virus from this patient has been transmitted into cord blood lymphocytes, and the virus produced by these cells is similar to the original isolate. From these studies it is concluded that this virus as well as the previous HTLV isolates belong to a general family of T-lymphotropic retroviruses that are horizontally transmitted in humans and may be involved in several pathological syndromes, including AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barre-Sinoussi, F -- Chermann, J C -- Rey, F -- Nugeyre, M T -- Chamaret, S -- Gruest, J -- Dauguet, C -- Axler-Blin, C -- Vezinet-Brun, F -- Rouzioux, C -- Rozenbaum, W -- Montagnier, L -- New York, N.Y. -- Science. 1983 May 20;220(4599):868-71.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6189183" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*microbiology ; Adult ; Animals ; Antibodies, Viral/immunology ; Cells, Cultured ; Humans ; Male ; Microscopy, Electron ; RNA-Directed DNA Polymerase/metabolism ; Retroviridae/*isolation & purification ; T-Lymphocytes/microbiology ; Tumor Virus Infections/*microbiology
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  • 178
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    Myasthenic globulin enhances the loss of acetylcholine receptor clusters (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-01-14
    Description: Acetylcholine receptors are present in the sarcolemma of cultured skeletal muscle myotubes either as large clusters or in a diffuse distribution. Both the clustered and diffuse acetylcholine receptors are potentially removable from the membrane. Treatment of myotubes with globulin from patients with myasthenia gravis causes the loss of acetylcholine receptor clusters and the concomitant appearance of acetylcholine receptor microaggregates. The rate of acetylcholine receptor cluster loss is greater than the rate of acetylcholine receptor degradation, indicating that acetylcholine receptors are disrupted from clusters to form microaggregates before being removed from the plasma membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bursztajn, S -- McManaman, J L -- Elias, S B -- Appel, S H -- New York, N.Y. -- Science. 1983 Jan 14;219(4581):195-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849132" target="_blank"〉PubMed〈/a〉
    Keywords: *Autoantibodies ; Cells, Cultured ; Humans ; Immunologic Capping ; Macromolecular Substances ; Membrane Proteins/metabolism ; Myasthenia Gravis/*immunology ; Pinocytosis ; Receptors, Cholinergic/immunology/*metabolism
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  • 179
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    Sodium currents in segments of human heart cells (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-15
    Description: Isolated human heart cells were partially drawn into the lumen of a plastic tube and cleaved at the partitioning tube wall by intraluminal suction pulses. The extraluminal segment (10 to 20 percent of the cell length) was suitable for intracellular perfusion and voltage clamp. The time and voltage dependence of the sodium current, and the responses to changes in driving force and channel blockers, illustrate the potential of these preparations as models for the study of membrane channels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bustamante, J O -- McDonald, T F -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):320-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301004" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Humans ; Ion Channels/drug effects ; Lidocaine/pharmacology ; Membrane Potentials/drug effects ; Myocardium/*cytology/metabolism ; Sodium/*metabolism/physiology ; Tetrodotoxin/pharmacology
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  • 180
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    Human brain tumor--derived cell lines: growth rate reduced by human fibroblast interferon (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-18
    Description: The biological response modifier human beta-interferon had pronounced antigrowth effects on various histologic types of human brain tumor cells but no effects on a nontransformed cell line, MRC-5. The cultures of brain tumor cells showed severe alterations indicative of cell injury and death after exposure to beta-interferon for 2 to 6 days. Similar results were obtained with cells freshly explanted from human brain tumors. The results indicate that it may be possible to use fresh, explanted tumor tissue to identify patients who might benefit from therapy with beta-interferon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, A W -- Carter, W A -- Nidzgorski, F -- Akhtar, L -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):881-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6401866" target="_blank"〉PubMed〈/a〉
    Keywords: Brain Neoplasms/pathology/*therapy ; Cell Division ; Cells, Cultured ; Humans ; Interferon-gamma/pharmacology/*therapeutic use
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    Cell-to-cell transfer of interferon-induced antiproliferative activity (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-02
    Description: Interferon-treated cells rapidly and efficiently transferred the antiproliferative activity of interferon to untreated cells. This phenomenon was not due to the carry-over of interferon by the interferon-treated cells. Thus, to evoke an antiproliferative state, interferon did not directly contact each cell in a population. The results suggest a novel mechanism by which interferon may indirectly regulate cell growth, and suggests that cells other than those of the immune system may play a role in controlling tumor growth in tissue where cell-to-cell contact occurs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lloyd, R E -- Blalock, J E -- Stanton, G J -- 03348/PHS HHS/ -- AM 30046/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 2;221(4614):953-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6192500" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Communication ; Cell Division/*drug effects ; Cells, Cultured ; Humans ; Interferons/*pharmacology ; Leukemia L1210 ; Mice ; Species Specificity
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 182
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    Serum factor supporting long-term survival of rat central neurons in culture (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-24
    Description: Gel filtration of serum at pH 3.6 yielded a fraction that supported long-term (months) survival of dissociated rat central neurons in monolayer culture more reliably than the traditionally used unfractionated serum. The cultures remained neuron-rich, because this fraction did not support the proliferation of glia and fibroblasts that occurs in whole serum. With an apparent molecular weight of 55,000 and an isoelectric point of 5.6, the active factor (or factors) in this fraction is distinct from any well-defined growth factor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaufman, L M -- Barrett, J N -- NS07044/NS/NINDS NIH HHS/ -- NS12207/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1394-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857258" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; *Cell Survival/drug effects ; Cells, Cultured ; Chromatography, Gel ; Horses ; Isoelectric Focusing ; Molecular Weight ; Nerve Growth Factors/isolation & purification/*pharmacology ; Neurons/drug effects/*physiology ; Rats ; Rats, Inbred Strains ; Spinal Cord/cytology
    Print ISSN: 0036-8075
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  • 183
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    Normal cells of patients with high cancer risk syndromes lack transforming activity in the NIH/3T3 transfection assay (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-10-14
    Description: Oncogenes capable of transforming NIH/3T3 cells are often present in human tumors and tumor cell lines. Such oncogenes were not detected in normal fibroblast lines derived from patients with several clinical syndromes associated with greatly increased cancer risk. Thus, germ-line transmission of these oncogenes does not appear to be the predisposing factor responsible for these high cancer risk syndromes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Needleman, S W -- Yuasa, Y -- Srivastava, S -- Aaronson, S A -- New York, N.Y. -- Science. 1983 Oct 14;222(4620):173-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623066" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Transformation, Neoplastic/*pathology ; Cells, Cultured ; DNA, Neoplasm/*genetics ; Gardner Syndrome/genetics ; Humans ; Mice ; *Oncogenes ; Precancerous Conditions/*genetics ; Risk ; Skin/pathology
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  • 184
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    Modulation of synapse formation by cyclic adenosine monophosphate (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-18
    Description: Synapses between neuroblastoma-hybrid cells and myotubes exhibit a high degree of plasticity. Increase of cyclic adenosine monophosphate (AMP) levels of the hybrid cells for several days results in the appearance of functional voltage-sensitive Ca2+ channels, which are required for evoked secretion of acetylcholine. The results show that cyclic AMP regulates synaptogenesis by regulating the expression of voltage-sensitive Ca2+ channels, and suggest that cyclic AMP affects posttranslational modifications of some glycoproteins and cellular levels of certain proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nirenberg, M -- Wilson, S -- Higashida, H -- Rotter, A -- Krueger, K -- Busis, N -- Ray, R -- Kenimer, J G -- Adler, M -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):794-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6314503" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Calcium/physiology ; Cell Adhesion ; Cells, Cultured ; Cyclic AMP/*physiology ; Gene Expression Regulation ; Humans ; Membrane Potentials ; Nerve Tissue Proteins/physiology ; Neuromuscular Junction/*physiology ; Neuronal Plasticity ; Receptors, Cell Surface/physiology ; Retina/*physiology ; Synapses/*physiology
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  • 185
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    Two coronaviruses isolated from central nervous system tissue of two multiple sclerosis patients (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-22
    Description: Two coronaviruses were isolated from brain material obtained at autopsy from two multiple sclerosis patients. The viruses were neutralized by serum and spinal fluid from these patients. Although most of the population have antibody to these virus isolates, multiple sclerosis patients have slightly higher concentrations of serum antibody than controls. The results suggest that coronaviruses should be considered as one additional virus with a potential implication in the etiology of multiple sclerosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burks, J S -- DeVald, B L -- Jankovsky, L D -- Gerdes, J C -- New York, N.Y. -- Science. 1980 Aug 22;209(4459):933-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403860" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Animals ; Antibodies, Viral/analysis ; Brain/*microbiology ; Cells, Cultured ; Coronaviridae/immunology/*isolation & purification ; Female ; Freezing ; Humans ; Male ; Mice ; Middle Aged ; Multiple Sclerosis/*microbiology/pathology
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  • 186
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    Genetic expression of Wilson's disease in cell culture: a diagnostic marker (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-04-18
    Description: Wilson's disease fibroblasts have an elevated intracellular copper concentration as compared to cultured control cells. A decreased ratio of copper to protein was observed in cytoplasmic protein (or proteins) having a molecular weight greater than or equal to 30,000 in Wilson's disease cells. The results of this culture study indicate its potential importance in the early unequivocal diagnosis of this disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chan, W Y -- Cushing, W -- Coffman, M A -- Rennert, O M -- New York, N.Y. -- Science. 1980 Apr 18;208(4441):299-300.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367859" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age Factors ; Cadmium/metabolism ; Cells, Cultured ; Child ; Copper/metabolism ; Fibroblasts/metabolism ; Hepatolenticular Degeneration/diagnosis/*genetics/metabolism ; Humans ; Skin/metabolism
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  • 187
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    Human cutaneous lieshmania in a mouse macrophage line: propagation and isolation of intracellular parasites (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-09-12
    Description: A mouse macrophage line, J774G8, supports continuous and prolific intracellular growth of Leishmania mexicana amazonensis, the etiological agent of a South American cutaneous leishmaniasis. The intracellular parasites from these infected cultures can be isolated with high recovery rate and purity by simple Percoll gradient centrifugation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, K P -- New York, N.Y. -- Science. 1980 Sep 12;209(4462):1240-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403880" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Disease Models, Animal ; Humans ; Leishmania/growth & development ; Leishmaniasis/*parasitology/pathology ; Macrophages/*parasitology ; Mice
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  • 188
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    Loss of division potential in culture: aging or differentiation? (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hornsby, P J -- Gill, G N -- New York, N.Y. -- Science. 1980 Jun 27;208(4451):1482-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7384793" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Cortex/physiology ; *Aging ; *Cell Differentiation ; *Cell Division ; Cells, Cultured ; Fibroblasts/physiology ; Humans ; Life Expectancy
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 189
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    Mouse interferons: amino terminal amino acid sequences of various species (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-01
    Description: Mouse interferons of three size classes (A, 35,000 to 40,000 daltons; B, 26,000 to 33,000 daltons; and C, 20,000 daltons) were purified from Ehrlich ascites tumor cells infected with Newcastle disease virus. The sequences of the first 24 amino acids (No. 17 has not been identified) of interferons A and B are identical. The sequence of the first 20 amino acids of interferon C differs from that of A and B in 18 positions. There is partial homology in amino terminal sequence between mouse interferons A (or B) and a human fibroblast interferon and between mouse interferon C and a human lymphoblastoid interferon.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taira, H -- Broeze, R J -- Jayaram, B M -- Lengyel, P -- Hunkapiller, M W -- Hood, L E -- New York, N.Y. -- Science. 1980 Feb 1;207(4430):528-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352261" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Evolution ; Carcinoma, Ehrlich Tumor/analysis ; Cells, Cultured ; Glycoproteins/analysis ; *Interferons/genetics ; Mice ; Molecular Weight
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  • 190
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    Pentobarbital: stereospecific actions of (+) and (-) isomers revealed on cultured mammalian neurons (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-11
    Description: Stereoisomers of the barbiturate anesthetic pentobarbital were applied to mouse spinal neurons growing in tissue culture. Intracellular recordings of neuronal membrane properties revealed that the (+) and (-) isomers caused direct changes in membrane potential and conductance on some but not all of the cells tested. The action of the (+) isomer was predominantly excitatory, whereas the (-) isomer produced predominantly inhibitory responses. The (-) isomer was considerably more effective in potentiating inhibitory responses to the transmitter gamma-aminobutyric acid. The results show that pentobarbital has multiple effects on neuronal excitability and demonstrate the presence of stereospecific sites of barbiturate action on central neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, L Y -- Barker, J L -- New York, N.Y. -- Science. 1980 Jan 11;207(4427):195-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350656" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Animals ; Cells, Cultured ; Dose-Response Relationship, Drug ; Electric Conductivity ; Membrane Potentials/drug effects ; Mice ; Neural Inhibition/drug effects ; Neurons/*drug effects ; Pentobarbital/*pharmacology ; Spinal Cord/embryology ; Stereoisomerism ; Structure-Activity Relationship
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  • 191
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    Fluorescent light induces malignant transformation in mouse embryo cell cultures (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-03-14
    Description: Fluorescent light induced a dose-dependent malignant transformation in mouse C3H10T1/2 cells. A plateau in the dose-response curve for transformation was correlated with that observed with ultraviolet light exposure. The similarity in the two dose-response patterns suggests that similar molecular processes may be involved in the induction of malignant transformation by the two types of radiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kennedy, A R -- Ritter, M A -- Little, J B -- New York, N.Y. -- Science. 1980 Mar 14;207(4436):1209-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7355282" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Survival/radiation effects ; Cell Transformation, Neoplastic/*radiation effects ; Cells, Cultured ; DNA/radiation effects ; Dose-Response Relationship, Radiation ; Embryo, Mammalian/radiation effects ; Fluorescence ; *Light ; Mice ; Pyrimidine Dimers/radiation effects ; Ultraviolet Rays
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  • 192
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    Human fibroblast interferon: amino acid analysis and amino terminal amino acid sequence (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-02-01
    Description: The purification of human fibroblast interferon has been simplified to a two-step procedure consisting of affinity chromatography on Blue Sepharose and sodium dodecyl sulfate polyacrlamide gel electrophoresis. A preliminary amino acid composition and the sequence of the 13 amino-terminal residues of homogeneous interferon prepared by this method is reported.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knight, E Jr -- Hunkapiller, M W -- Korant, B D -- Hardy, R W -- Hood, L E -- New York, N.Y. -- Science. 1980 Feb 1;207(4430):525-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352259" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acids/analysis ; Cells, Cultured ; Fibroblasts/*analysis ; Humans ; *Interferons
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  • 193
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    Teratocarcinomas and mammalian embryogenesis (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-08-15
    Description: In the last decade there has emerged an appreciation of the remarkable similarity between the cells that give rise to teratocarcinomas in mice and the cells that give rise to the developing mouse embryo. The resemblance is so close that in certain instances the tumor stem cells can join with their embryonic counterparts and develop into a completely normal mouse. The availability of stem cell lines isolated from mouse teratocarcinomas has made possible a number of new biochemical, immunological, and genetic approahes to the study of early mammalian development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, G R -- New York, N.Y. -- Science. 1980 Aug 15;209(4458):768-76.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6250214" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Neoplasm/genetics ; Antigens, Surface/genetics ; Antigens, Viral/genetics ; Blastocyst/cytology ; Cell Differentiation ; Cell Transformation, Viral ; Cells, Cultured ; Chimera ; Embryo, Mammalian/*cytology ; Endoderm/cytology ; Mice ; Simian virus 40 ; Teratoma/immunology/*pathology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 194
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    Ozone selectively inhibits growth of human cancer cells (1980)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1980-08-22
    Description: The growth of human cancer cells from lung, breast, and uterine tumors was selectively inhibited in a dose-dependent manner by ozone at 0.3 to 0.8 part per million of ozone in ambient air during 8 days of culture. Human lung diploid fibroblasts served as noncancerous control cells. The presence of ozone at 0.3 to 0.5 part per million inhibited cancer cell growth 40 and 60 percent, respectively. The noncancerous lung cells were unaffected at these levels. Exposure to ozone at 0.8 part per million inhibited cancer cell growth more than 90 percent and control cell growth less than 50 percent. Evidently, the mechanisms for defense against ozone damage are impaired in human cancer cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sweet, F -- Kao, M S -- Lee, S C -- Hagar, W L -- Sweet, W E -- New York, N.Y. -- Science. 1980 Aug 22;209(4459):931-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403859" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/drug therapy/pathology ; Cell Division/*drug effects ; Cell Survival ; Cells, Cultured ; Humans ; Lung Neoplasms/drug therapy/pathology ; Neoplasms, Experimental/drug therapy/*pathology ; Ozone/*pharmacology
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  • 195
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    Endothelial cells of bovine pulmonary artery lack receptors for C3b and for the Fc portion of immunoglobulin G (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-05-16
    Description: Bovine pulmonary endothelial cells do not possess receptors for the 3b component of complement (C3b) or for the Fc portion of immunoglobulin G. The lack of these receptors may help explain the nonthrombogenic function of endothelial cells. Our findings rule out the possibility that endothelial cells participate in pulmonary immune complex disease through the binding of C3b or Fc fragments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ryan, U S -- Schultz, D R -- Del Vecchio, P J -- Ryan, J W -- New York, N.Y. -- Science. 1980 May 16;208(4445):748-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367890" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cattle ; Cells, Cultured ; Complement C3b/metabolism ; Endothelium/immunology ; Pulmonary Artery/*immunology/metabolism ; Receptors, Complement/*metabolism ; Receptors, Fc/*metabolism ; Rosette Formation
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  • 196
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    Effect of cell-cell interactions on drug sensitivity and growth of drug-sensitive and -resistant tumor cells in spheroids (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-11-16
    Description: Multicellular spheroids were grown from mixtures of rat brain tumor cells sensitive (9L) and resistant (R3) to 1,3-bis(2-chloroethyl)-1-nitrosourea. Percentages of each cell subpopulation in these spheroids were estimated with the sister chromatid exchange assay and were found to be approximately the same as those used to initiate spheroids. Spheroids grown from 9L cells alone had a higher growth rate than spheroids grown from R3 cells alone. However, the growth rate of mixed-cell spheroids was essentially the same as that of pure 9L spheroids and was independent of the percentages of R3 cells in mixed-cell spheroids. The sensitivity of 9L cells in mixed-cell spheroids treated with 1,3-bis(2-chloroethyl)-1-nitrosourea, estimated by changes in the number of sister chromatid exchanges per metaphase induced by treatment, decreased as the percentage of R3 cells increased. These effects are probably the result of an interaction between the two cell subpopulations held in three-dimensional contact, a situation similar to that in tumors in situ. The results suggest why one cell subpopulation of tumors does not become dominant during growth and indicate that interactions between cell subpopulations can influence the sensitivity of one subpopulation to 1,3-bis(2-chloroethyl)-1-nitrosourea.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tofilon, P J -- Buckley, N -- Deen, D F -- CA-09215/CA/NCI NIH HHS/ -- CA-31867/CA/NCI NIH HHS/ -- CA-31868/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1984 Nov 16;226(4676):862-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6494917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carmustine/pharmacology ; Cell Division/*drug effects ; Cells, Cultured ; Drug Resistance ; Male ; Neoplasms, Experimental/*physiopathology ; Rats ; Sister Chromatid Exchange/drug effects
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  • 197
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    Schwann cell galactocerebroside induced by derivatives of adenosine 3',5'-monophosphate (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-04-06
    Description: Indirect immunofluorescence was used to show the presence of galactocerebroside (galC), a lipid found in myelin, on the surface of about half of the Schwann cells isolated from neonatal rat sciatic nerves and cultured for 1 day without neurons. By day 4 in vitro, the Schwann cells had all lost their surface galC. Three days after beginning treatment with 10(-3) molar 8-bromo-adenosine 3',5'-monophosphate (8-bromo cyclic AMP) or N6,O2'-dibutyryl adenosine 3',5'-monophosphate (dibutyryl cyclic AMP), galC reappeared on the Schwann cells, and 2 days later 48 percent of the cultured Schwann cells showed surface galC. Tritium from tritiated D-galactose was incorporated into galC by the 8-bromo cyclic AMP-and dibutyryl cyclic AMP-treated cultures at a rate 15 times the control rate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sobue, G -- Pleasure, D -- HD08536/HD/NICHD NIH HHS/ -- NS08075/NS/NINDS NIH HHS/ -- NS11037/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1984 Apr 6;224(4644):72-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6322307" target="_blank"〉PubMed〈/a〉
    Keywords: 8-Bromo Cyclic Adenosine Monophosphate/pharmacology ; Adenosine Monophosphate/*analogs & derivatives ; Animals ; Bucladesine/pharmacology ; Butyrates/pharmacology ; Butyric Acid ; Cells, Cultured ; Cerebrosides/*metabolism ; Fluorescent Antibody Technique ; Galactosylceramides/*metabolism ; Myelin Sheath/metabolism ; Rats ; Schwann Cells/*drug effects/metabolism ; Sciatic Nerve/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 198
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    Decreased oxidation of labeled glucose by dissociated brain cells in the presence of fetal bovine serum (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-05-25
    Description: The effect of serum on the rate of substrate oxidation by dissociated brain cells in vitro was examined. At a serum protein concentration of approximately 0.55 milligram per milliliter, oxidation of [6-14C]glucose to 14CO2 was decreased more than 50 percent. Oxidation of [3-14C]-3-hydroxybutyrate and [U-14C]glutamine was decreased much less. Serum from cows, rats, horses, and humans produced similar effects, as did serum from young and old animals and from both sexes. The effect on [6-14C]glucose oxidation was proportional to serum protein concentration, and significant inhibitory activity was obtained with dialyzed serum. Heating (80 degrees C for 10 minutes) significantly reduced the inhibitory activity. These results suggest the presence of a factor in serum that can preferentially decrease glucose oxidation. Such a factor would have profound implications for metabolic regulation in vivo and for studies of cells in vitro in which serum is included in the growth medium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tildon, J T -- Stevenson, J H -- New York, N.Y. -- Science. 1984 May 25;224(4651):903-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6719124" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Blood ; Brain/*metabolism ; Cells, Cultured ; *Culture Media ; Glucose/*metabolism ; Glutamine/metabolism ; Hydroxybutyrates/metabolism ; Oxidation-Reduction ; Rats ; Rats, Inbred Strains
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 199
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    Constitutive fragile sites and cancer (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-12-07
    Description: Breaks were observed at 51 sites in homologous chromosomes in lymphocytes from ten humans and two great apes when cells were deprived of thymidine. The incidence of breaks was enhanced by caffeine, a substance that inhibits DNA repair in replicating cells. The locations of 20 sites were correlated with breakpoints that have been related to human malignancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yunis, J J -- Soreng, A L -- New York, N.Y. -- Science. 1984 Dec 7;226(4679):1199-204.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6239375" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Animals ; Caffeine/pharmacology ; Cells, Cultured ; Child ; Chromosome Fragile Sites ; *Chromosome Fragility ; Chromosome Mapping ; Female ; Floxuridine/pharmacology ; Folic Acid/metabolism ; Gorilla gorilla ; Humans ; Male ; Middle Aged ; Neoplasms/*genetics ; Pan troglodytes ; Thymidine/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 200
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    Identification of an infective stage of Leishmania promastigotes (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-03-30
    Description: Sequential development of Leishmania promastigotes from a noninfective to an infective stage was demonstrated for promastigotes growing in culture and in the sandfly vector. The generation of an infective stage was found to be growth cycle-dependent and restricted to nondividing organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sacks, D L -- Perkins, P V -- New York, N.Y. -- Science. 1984 Mar 30;223(4643):1417-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6701528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Insect Vectors/parasitology ; Leishmania/growth & development/*physiology ; Leishmaniasis/parasitology/transmission ; Macrophages/parasitology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Psychodidae/parasitology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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