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  • Articles  (50)
  • Cell Line  (32)
  • Kinetics
  • 1980-1984  (50)
  • 1925-1929
  • 1983  (50)
  • Science. 219(4582): 299-301.  (1)
  • Science. 219(4584): 498-501.  (1)
  • Science. 219(4586): 856-9.  (1)
  • Science. 219(4588): 1032-7.  (1)
  • Science. 219(4590): 1331-3.  (1)
  • Science. 219(4591): 1427-9.  (1)
  • Science. 219(4591): 1434-6.  (1)
  • Science. 219(4591): 1438-41.  (1)
  • Science. 219(4591): 1444-6.  (1)
  • Science. 219(4591): 1448-9.  (1)
  • Science. 219(4591): 1451-3.  (1)
  • Science. 220(4592): 89-91.  (1)
  • Science. 220(4593): 201-4.  (1)
  • Science. 220(4593): 210-2.  (1)
  • Science. 220(4595): 393-4.  (1)
  • Science. 220(4596): 509-11.  (1)
  • Science. 220(4596): 522-4.  (1)
  • Science. 220(4597): 611-3.  (1)
  • Science. 220(4598): 739-42.  (1)
  • Science. 220(4600): 955-6.  (1)
  • 25
Collection
  • Articles  (50)
Source
Keywords
Publisher
Years
  • 1980-1984  (50)
  • 1925-1929
Year
Journal
Topic
  • 1
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    Time course of alpha-flupenthixol action explains "response artifacts" of neuroleptic action on brain stimulation reward (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉New York, N.Y. -- Science. 1983 Dec 16;222(4629):1251-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6648532" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal/drug effects ; Flupenthixol/*pharmacology ; Hypothalamus/*drug effects ; Kinetics ; Rats ; *Reward ; Self Stimulation/*drug effects ; Thioxanthenes/*pharmacology
    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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  • 2
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    High efficiency DNA-mediated transformation of primate cells (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-05
    Description: Tissue culture cells from several mammalian species, including three primate lines, were transfected with recombinant vectors carrying Escherichia coli xanthine-guanine phosphoribosyltransferase or Tn5 aminoglycoside phosphotransferase dominant selectable markers. Human HeLa and SV40-transformed xeroderma pigmentosum cells exhibited stable transformation frequencies of at least 10(-3) (0.1 percent). CV-1, an African green monkey kidney cell line, could be stably transformed with the exceptionally high frequency of 6 X 10(-2) (6 percent).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gorman, C -- Padmanabhan, R -- Howard, B H -- New York, N.Y. -- Science. 1983 Aug 5;221(4610):551-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6306768" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Avian Sarcoma Viruses/genetics ; Cell Line ; Cercopithecus aethiops ; Cricetinae ; Cricetulus ; DNA, Recombinant/*metabolism ; Genetic Vectors ; HeLa Cells/metabolism ; Humans ; Mice ; Plasmids ; *Transfection
    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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  • 3
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    Midbrain microinfusions of prolactin increase the estrogen-dependent behavior, lordosis (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-03-25
    Description: Microinfusions of rat prolactin into the dorsal midbrain of estrogen-treated, ovariectomized rats increased lordosis behavior. Midbrain microinfusions of antiserum to prolactin into rats displaying maximum lordosis had the opposite effect. The distribution of a prolactin-like substance in the brain was studied immunocytochemically. The results suggest that a hypothalamic neuronal system projecting to the midbrain contains a prolactin-like substance that plays a role in facilitating this behavior and therefore may mediate some of the effects of estrogen on the brain. These data, together with others from studies of the prolactin gene and its regulation, indicate that it may be possible to analyze a sequence of molecular events in the brain that facilitate a behavioral response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harlan, R E -- Shivers, B D -- Pfaff, D W -- HD-05585/HD/NICHD NIH HHS/ -- HD-05737/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1451-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828874" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenalectomy ; Animals ; Castration ; Cerebral Cortex/drug effects/*physiology ; Cosyntropin/pharmacology ; Estradiol/pharmacology ; Female ; Growth Hormone/pharmacology ; Immune Sera ; Kinetics ; Mesencephalon/*physiology ; Oxytocin/pharmacology ; Posture ; Prolactin/administration & dosage/*pharmacology ; Rats ; Sexual Behavior, Animal/*drug effects ; Vasopressins/pharmacology
    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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  • 4
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    The thymus-adrenal connection: thymosin has corticotropin-releasing activity in primates (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-23
    Description: Endotoxin-free thymosin fraction 5 elevated corticotropin, beta-endorphin, and cortisol in a dose- and time-dependent fashion when administered intravenously to prepubertal cynomolgus monkeys. Two synthetic component peptides of thymosin fraction 5 had no acute effects on pituitary function, suggesting that some other peptides in thymosin fraction 5 were responsible for its corticotropin-releasing activity. In agreement with these observations, total thymectomy of juvenile macaques was associated with decreases in plasma cortisol, corticotropin, and beta-endorphin. These findings indicate that the prepubertal primate thymus contains corticotropin-releasing activity that may contribute to a physiological immunoregulatory circuit between the developing immunological and pituitary-adrenal systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Healy, D L -- Hodgen, G D -- Schulte, H M -- Chrousos, G P -- Loriaux, D L -- Hall, N R -- Goldstein, A L -- CA 24974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1353-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6318312" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/*blood ; Animals ; Dose-Response Relationship, Drug ; Endorphins/blood ; Female ; Hydrocortisone/blood ; Kinetics ; Macaca fascicularis ; Thymectomy ; Thymosin/analogs & derivatives/*pharmacology ; Thymus Gland/*physiology ; beta-Endorphin
    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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  • 5
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    Implication of nonlinear kinetics on risk estimation in carcinogenesis (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-03-04
    Description: Efforts in estimating carcinogenic risk in humans from long-term exposure to chemical carcinogens have centered on the problem of low-dose extrapolation. For chemicals with metabolites that interact with DNA, it may be more meaningful to relate tumor response to the concentration of the DNA adducts in the target organ rather than to the applied dose. Many data suggest that the relation between tumor response and concentration of DNA adducts in the target organ may be linear. This implies that the nonlinearities of the dose-response curve for tumor induction may be due to the kinetic processes involved in the formation of carcinogen metabolite--DNA adducts. Of particular importance is the possibility that the kinetic processes may show a nonlinear "hockey-stick" like behavior which results from saturation of detoxification or DNA repair processes. The mathematical models typically used for low-dose extrapolation are shown potentially to overestimate risk by several orders of magnitude when nonlinear kinetics are present.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoel, D G -- Kaplan, N L -- Anderson, M W -- New York, N.Y. -- Science. 1983 Mar 4;219(4588):1032-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823565" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogens/*administration & dosage ; Cell Transformation, Neoplastic/*drug effects ; DNA, Neoplasm/genetics ; Dose-Response Relationship, Drug ; Humans ; Kinetics ; Models, Biological ; Neoplasms/*chemically induced ; Risk
    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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  • 6
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    Heme-heme orientation and electron transfer kinetic behavior of multisite oxidation-reduction enzymes (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-11-25
    Description: Analysis of the polarized single-crystal absorption spectra of cytochrome cd1 of Pseudomonas aeruginosa shows that the heme c and heme d1 groups in each subunit are oriented perpendicularly to each other in both oxidized and reduced forms of the enzyme. These results, together with those of previous kinetic studies, indicate that a perpendicular heme-heme orientation may be an important factor in specifying kinetically slow steps in a sequential series of electron transfer reactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Makinen, M W -- Schichman, S A -- Hill, S C -- Gray, H B -- 1-T32-HD-07009/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 25;222(4626):929-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6415814" target="_blank"〉PubMed〈/a〉
    Keywords: *Cytochromes ; *Electron Transport ; *Heme ; Kinetics ; *Nitrite Reductases ; Pseudomonas aeruginosa/enzymology ; Spectrum Analysis
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  • 7
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    Synthesis of kappa light chains by cell lines containing an 8;22 chromosomal translocation derived from a male homosexual with Burkitt's lymphoma (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-09
    Description: Three cell lines were derived from a homosexual patient with probable acquired immunodeficiency syndrome and Burkitt's lymphoma. The cell lines produce an unusual strain of Epstein-Barr virus which will both transform cord blood lymphocytes and induce early antigens in Raji cells. Translocations between chromosomes 8 and 22 have occurred in all three lines, but the cells synthesize immunoglobulin M with light chains of the kappa type, in contrast to the usual concordance between a translocation involving chromosome 22 and lambda chain synthesis. Both kappa genes and one lambda gene are rearranged. These findings indicate either that translocation may occur as a separate event from immunoglobulin gene rearrangement or that the proposed hierarchical sequence of immunoglobulin gene rearrangements is not always adhered to. The data also imply that in cells containing a translocation between the long arm of chromosome 8 and a chromosome bearing an immunoglobulin gene, alteration of cellular myc expression may occur regardless of the immunoglobulin gene that is expressed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Magrath, I -- Erikson, J -- Whang-Peng, J -- Sieverts, H -- Armstrong, G -- Benjamin, D -- Triche, T -- Alabaster, O -- Croce, C M -- New York, N.Y. -- Science. 1983 Dec 9;222(4628):1094-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6316501" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/complications ; Antigens, Viral/analysis ; Burkitt Lymphoma/complications/*genetics ; Cell Line ; Chromosomes, Human, 21-22 and Y ; Chromosomes, Human, 6-12 and X ; Epstein-Barr Virus Nuclear Antigens ; Herpesvirus 4, Human/analysis ; Homosexuality ; Humans ; Immunoglobulin Light Chains/*biosynthesis ; Immunoglobulin kappa-Chains/*biosynthesis ; Male ; Oncogenes
    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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  • 8
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    DNA methylation decreases in aging but not in immortal cells (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-03
    Description: When normal diploid fibroblasts from mice, hamsters, and humans were grown in culture, the 5-methylcytosine content of their DNA's markedly decreased. The greatest rate of loss of 5-methylcytosine residues was observed in mouse cells, which survived the least number of division. Immortal mouse cell lines had more stable rates of methylation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, V L -- Jones, P A -- 1-T32-CA09320/CA/NCI NIH HHS/ -- R01-GM30892/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1055-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844925" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine ; *Aging ; Animals ; Cell Division ; Cell Line ; Cricetinae ; Cytosine/analogs & derivatives/metabolism ; DNA/metabolism/*physiology ; Fibroblasts/metabolism ; Humans ; Mesocricetus ; Methylation ; Mice ; Time Factors
    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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  • 9
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    Waterlogged molecules (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-09
    Description: Measurements of vapor pressures over their aqueous solutions indicate that organic compounds show profound differences in hydrophilic character. These differences are of such magnitude as to suggest an important role for changing solvation in determining free energy changes associated with metabolic transformations in water, and in governing structural equilibria of proteins and other large molecules in water. When two or more functional groups are present within the same solute molecule, their combined effects on its free energy of solvation are commonly additive. Striking departures from additivity, observed in certain cases, indicate the existence of special interactions between different parts of a solute molecule and the water that surrounds it. Similar considerations presumably apply to activated intermediates in the interconversion of biological materials.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolfenden, R -- GM 18325/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 9;222(4628):1087-93.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6359416" target="_blank"〉PubMed〈/a〉
    Keywords: Chemistry, Organic ; Enzymes/physiology ; Kinetics ; Metabolism ; Nucleic Acid Conformation ; Nucleic Acids/physiology ; Organic Chemistry Phenomena ; Protein Conformation ; Solvents ; Water/*physiology
    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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  • 10
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    Noninvasive observations of fluorinated anesthetics in rabbit brain by fluorine-19 nuclear magnetic resonance (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-10-28
    Description: Fluorinated anesthetics were observed noninvasively in the brain of intact rabbits with fluorine-19 nuclear magnetic resonance spectroscopy. High-resolution fluorine-19 spectra of halothane, methoxyflurane, and isoflurane were obtained with a surface coil centered over the calvarium. Elimination of halothane from the brain was also monitored by this technique. Residual fluorine-19 signals from halothane (or a metabolite) could be detected as long as 98 hours after termination of anesthesia. These observations demonstrate the feasibility of using this technique to study the fate of fluorinated anesthetics in live mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wyrwicz, A M -- Pszenny, M H -- Schofield, J C -- Tillman, P C -- Gordon, R E -- Martin, P A -- GM 29520/GM/NIGMS NIH HHS/ -- K04 GM 00503/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 28;222(4622):428-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623084" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Halothane/*metabolism ; Isoflurane/*metabolism ; Kinetics ; Magnetic Resonance Spectroscopy ; Methoxyflurane/*metabolism ; Methyl Ethers/*metabolism ; Rabbits
    Print ISSN: 0036-8075
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  • 11
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    Insulin receptor: evidence that it is a protein kinase (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-01-21
    Description: Highly purified preparations of insulin receptor catalyzed the phosphorylation of the 95,000-dalton subunit of the insulin receptor. This subunit of the insulin receptor was also labeled with [alpha-32P]8-azidoadenosine 5'-triphosphate, a photoaffinity label for adenosine triphosphate binding sites. The identity of the 95,000-dalton band was confirmed in both cases by precipitation with a monoclonal antibody to the insulin receptor. These results suggest that the insulin receptor is itself a protein kinase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roth, R A -- Cassell, D J -- New York, N.Y. -- Science. 1983 Jan 21;219(4582):299-301.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849137" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Cell Line ; Cells, Cultured ; Lymphocytes ; Molecular Weight ; Phosphoproteins/physiology ; Protein Kinases/*physiology ; Receptor, Insulin/*physiology
    Print ISSN: 0036-8075
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  • 12
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    Herpes simplex virus glycoprotein D: human monoclonal antibody produced by bone marrow cell line (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-08
    Description: Normal bone marrow cells from a donor positive for herpes simplex virus were transformed with Epstein-Barr virus. The resulting lymphoblastoid cell line has secreted immunoglobulin G1 of the kappa type continuously for 2 years. This immunoglobulin, detected both on the cell surface and in the cytoplasm, reacts with cells infected with herpes simplex virus. It defines an antigen that comigrates with the 55-kilodalton glycoprotein D of herpes simplex virus type 1 and neutralizes the infectivity of herpes simplex viruses 1 and 2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seigneurin, J M -- Desgranges, C -- Seigneurin, D -- Paire, J -- Renversez, J C -- Jacquemont, B -- Micouin, C -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):173-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304881" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Antibodies, Monoclonal/*immunology ; B-Lymphocytes/immunology ; Bone Marrow/*immunology ; Bone Marrow Cells ; Cell Line ; Enzyme-Linked Immunosorbent Assay ; Humans ; Immunoglobulin G/immunology ; Simplexvirus/*immunology ; Viral Envelope Proteins ; Viral Proteins/*immunology
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  • 13
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    Rapid degradation of "new" acetylcholine receptors at neuromuscular junctions (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-10-07
    Description: Acetylcholine receptors at innervated neuromuscular junctions are very stable, with half-lives reported to be 6 to 13 days. Their turnover is described as a first-order process, implying a single population of receptors. In this study, two subpopulations of acetylcholine receptors at normally innervated junctions have been identified. One has a rapid turnover rate with a half-life of 18.7 hours, similar to that of extrajunctional receptors, and the other has a slow turnover rate with a half-life of 12.4 days. The rapidly turned over subpopulation represents approximately 20 percent of the total junctional receptors. This finding may account for the discrepancies in previous reports of turnover rates and may explain the rapid reversibility in vivo of agents that "irreversibly" block acetylcholine receptors. This finding also implies that the synthesis rate of junctional acetylcholine receptors may be higher than previous estimates. The rapidly turned-over subpopulation may represent receptors that were newly inserted into the neuromuscular junction and that were not yet stabilized by an influence of the motor nerve.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stanley, E F -- Drachman, D B -- 5 P01 NS10920/NS/NINDS NIH HHS/ -- 5 R01 HD04817/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 7;222(4619):67-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623057" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bungarotoxins ; Diaphragm ; Kinetics ; Mice ; Neuromuscular Junction/*metabolism ; Receptors, Cholinergic/biosynthesis/classification/*metabolism ; Synaptic Membranes/metabolism
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  • 14
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    Bovine x mouse hybridomas that secrete bovine immunoglobulin G1 (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-29
    Description: The interspecific fusion of normal bovine lymphocytes with a nonsecreting mouse hybridoma produced stable cell lines secreting bovine immunoglobulins. One of these lines has continued to secrete immunoglobulin G1 (5 to 10 micrograms per milliliter) for over 16 months. The bovine x mouse hybrid cells can be expected to provide bovine monoclonal immunoglobulins for sequencing studies and for use as serological standards as well as to provide messenger RNA for cloning bovine immunoglobulin genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Srikumaran, S -- Guidry, A J -- Goldsby, R A -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):522-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6403985" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/biosynthesis ; Cattle ; Cell Line ; Hybridomas/*immunology ; Immunoglobulin G/*biosynthesis/immunology/isolation & purification ; Immunoglobulin Heavy Chains/immunology ; Immunoglobulin Light Chains/immunology ; Immunoglobulin M/immunology ; Mice ; Radioimmunoassay
    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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  • 15
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    Serological visualization of interleukin 2 (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-10
    Description: Interleukin 2, a lymphokine that acts as a second signal of cellular immune response by way of its action as a T-cell growth factor, was morphologically identified by immunoperoxidase staining. With the use of a monoclonal antibody to interleukin 2 and several complex-forming antisera, the lymphokine was readily distinguished in cytocentrifuge preparations of peripheral blood leukocytes stimulated with a T-cell mitogen. When preparations of cloned interleukin 2 producer and responder cells were stained by the same procedures, discrete patterns of both responder and producer cell phenotypes were revealed. Interleukin 2 producer T cells exhibited a characteristic intense, ringlike cytoplasmic staining, whereas the responder cells (as exemplified by interleukin 2-dependent cell lines) exhibited a less intensive, spotlike membrane staining. In addition, intense membrane localization of interleukin 2, reminiscent of potential capping phenomena, could be observed in stained preparations of cloned responder cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steinmann, G -- Conlon, P -- Hefeneider, S -- Gillis, S -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1188-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6344215" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/immunology ; Cell Line ; Humans ; Immunoenzyme Techniques ; Interleukin-2/*physiology ; Leukocytes/physiology ; Mice ; T-Lymphocytes/physiology
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  • 16
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    Bromine residue at hydrophilic region influences biological activity of aplysiatoxin, a tumor promoter (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-16
    Description: Aplysiatoxin and debromoaplysiatoxin, which are isolated from the seaweed, Lyngbya gracilis, differ in their chemical structure only by the presence or absence of a bromine residue in the hydrophilic region. The function and the structure-activity relation of the hydrophilic region are not known. Aplysiatoxin increased malignant transformation, stimulated DNA synthesis, and inhibited the binding of phorbol-12,13-dibutyrate and epidermal growth factor to cell receptors. Debromoaplysiatoxin inhibited the binding of these two substances as strongly as aplysiatoxin but did not increase malignant transformation or stimulate DNA synthesis. These results indicate that a slight change in the chemical structure of the hydrophilic region of aplysiatoxin affects its abilities to increase cell transformation and stimulate DNA synthesis and that the abilities of the tumor promoters to inhibit the binding of phorbol-12,13-dibutyrate and epidermal growth factor are dissociable from their abilities to increase cell transformation and stimulate DNA synthesis under some circumstances.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shimomura, K -- Mullinix, M G -- Kakunaga, T -- Fujiki, H -- Sugimura, T -- New York, N.Y. -- Science. 1983 Dec 16;222(4629):1242-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6316505" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Caenorhabditis elegans Proteins ; Carcinogens/*pharmacology ; Carrier Proteins ; Cell Line ; Cell Transformation, Neoplastic/*drug effects ; Chemical Phenomena ; Chemistry ; DNA/biosynthesis ; Epidermal Growth Factor/metabolism ; Lactones/analysis/*pharmacology ; *Lyngbya Toxins ; Mice ; Phorbol 12,13-Dibutyrate ; Phorbol Esters/metabolism ; *Protein Kinase C ; Receptor, Epidermal Growth Factor ; Receptors, Cell Surface/metabolism ; *Receptors, Drug ; Structure-Activity Relationship
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  • 17
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    Fibronectin binds to some bacteria but does not promote their uptake by phagocytic cells (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-08
    Description: The involvement of plasma fibronectin in phagocytosis of bacteria was investigated by testing the binding of fibronectin to several species of bacteria and by evaluating the ability of fibronectin to promote binding and endocytosis of two species of these bacteria by phagocytic cells. Fibronectin binds non-covalently to Gram-positive and Gram-negative bacteria and to yeast but did not appear to be necessary or sufficient for uptake of Staphylococcus aureus and Salmonella typhimurium by several different phagocytic cell types.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Van de Water, L -- Destree, A T -- Hynes, R O -- R01CA17007/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 8;220(4593):201-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6338594" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria/*metabolism ; Cell Line ; Cricetinae ; Endocytosis ; Fibronectins/*metabolism ; Humans ; Macrophages/physiology ; Mice ; Opsonin Proteins/physiology ; *Phagocytosis ; Rabbits ; Salmonella typhimurium/metabolism ; Sepsis/immunology ; Staphylococcus aureus/metabolism
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  • 18
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    Tension transients in single isolated smooth muscle cells (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-03-25
    Description: Tension transients were recorded in a single smooth muscle cell. The transient contains a linear elastic response and a biphasic recovery that appear to originate from the cross-bridges. A comparison of transients in smooth and fast skeletal muscle fibers suggests that the cross-bridge in smooth muscle is more compliant than the cross-bridge in striated muscle and that transitions between several cross-bridge states occur more slowly in smooth muscle than in striated muscle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warshaw, D M -- Fay, F S -- HL 05770/HL/NHLBI NIH HHS/ -- HL 14523/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1438-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828870" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; In Vitro Techniques ; Kinetics ; *Muscle Contraction ; Muscle Relaxation ; Muscle, Smooth/*physiology ; Muscles/physiology ; Stress, Mechanical
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  • 19
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    Demonstration of a saturable binding site for thyrotropin in Yersinia enterocolitica (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-03-18
    Description: Several lines of evidence suggest that there might be immunologic cross-reactivity between the thyroid plasma membrane in humans and antigenic determinants in the enteric pathogen Yersinia enterocolitica. Studies were therefore performed to determine whether Y. enterocolitica, like the thyroid membrane, contains a thyrotropin binding site. A saturable binding site for bovine thyrotropin was indeed demonstrable, particularly in preparations of the organism that have been treated with ethylenediaminetetraacetate and lysozyme. Hormonal specificity of the binding site, as judged from the inhibition of binding of 125I-labeled bovine thyrotropin, was similar to that of the thyrotropin receptor in human thyroid tissue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, M -- Ingbar, S H -- Winblad, S -- Kasper, D L -- AM 18416/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 18;219(4590):1331-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6298936" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Binding, Competitive ; Kinetics ; Receptors, Cell Surface/*metabolism ; Receptors, Thyrotropin ; Thyrotropin/*metabolism ; Yersinia enterocolitica/*metabolism
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  • 20
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    Selective reduction of forskolin-stimulated cyclic AMP accumulation by inhibitors of protein synthesis (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-06-10
    Description: Inhibiting protein synthesis by incubating C6-2B rat astrocytoma cells with cycloheximide or emetine for periods up to 24 hours caused a progressive decrease in the accumulation of adenosine 3',5'-monophosphate (cyclic AMP) when the cells were challenged for 30 minutes with 100 microM forskolin. In contrast, cholera toxin-stimulated (6 nM, 3 hours) cyclic AMP accumulation was not diminished in cycloheximide-treated cells, and cyclic AMP was only minimally diminished in response to a 30-minute challenge with 10 microM (-)-isoproterenol. These experiments suggest the presence of a previously unrecognized cyclase component, which is essential for forskolin-stimulated cyclic AMP accumulation and has a shorter half-life than the beta-adrenergic receptor, the guanine nucleotide regulatory proteins, or the cyclase catalytic component.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brooker, G -- Pedone, C -- Barovsky, K -- HL 06330/HL/NHLBI NIH HHS/ -- HL 28940/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1169-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6190226" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytoma/metabolism ; Cell Line ; Cholera Toxin/pharmacology ; Colforsin ; Cyclic AMP/*biosynthesis/physiology ; Cycloheximide/pharmacology ; Dichlororibofuranosylbenzimidazole/pharmacology ; Diterpenes/*pharmacology ; Emetine/pharmacology ; Isoproterenol/pharmacology ; *Protein Biosynthesis ; RNA/biosynthesis ; Rats
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  • 21
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    Ethanol modulation of opiate receptors in cultured neural cells (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-16
    Description: The mouse neuroblastoma-rat glioma hybrid cell line NG108-15 was used to study the acute and chronic interaction of ethanol with intact neural cells. In the short term, ethanol inhibited opiate receptor binding, but after long-term exposure the cells exhibited an apparent adaptive increase in the number of opiate binding sites; this was reversible when ethanol was withdrawn. High concentrations of ethanol (200 mM) increased opiate binding after 18 to 24 hours, whereas lower concentrations (25 to 50 mM) produced similar changes after 2 weeks. This model system has potential for exploring the cellular and molecular mechanisms underlying ethanol intoxication, tolerance, and withdrawal.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Charness, M E -- Gordon, A S -- Diamond, I -- New York, N.Y. -- Science. 1983 Dec 16;222(4629):1246-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6316506" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Dose-Response Relationship, Drug ; Enkephalin, Methionine/analogs & derivatives/metabolism ; Ethanol/*pharmacology ; Glioma ; Hybrid Cells ; Mice ; Neuroblastoma ; Neurons/*drug effects/metabolism ; Rats ; Receptors, Opioid/*drug effects/metabolism ; Time Factors
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  • 22
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    Frequent activation of c-kis as a transforming gene in fibrosarcomas induced by methylcholanthrene (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-27
    Description: The DNA's from two of four methylcholanthrene-induced mouse fibrosarcomas contained transforming genes that were identical in their pattern of restriction endonuclease resistance to inactivation of biologic activity. This transforming gene was identified as the activated homolog of the Kirsten murine sarcoma virus onc gene, v-kis. The finding that a defined carcinogen reproducibly leads to activation of kis as a transforming gene should be of value in elucidating the role of oncogenes in the neoplastic process.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eva, A -- Aaronson, S A -- New York, N.Y. -- Science. 1983 May 27;220(4600):955-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302839" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Transformation, Neoplastic/*drug effects ; DNA Restriction Enzymes ; DNA, Neoplasm/genetics ; Fibrosarcoma/chemically induced/*genetics ; Humans ; Methylcholanthrene/*pharmacology ; Mice ; Oncogenes/*drug effects ; Retroviridae/genetics ; Transfection
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  • 23
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    Shark cartilage contains inhibitors of tumor angiogenesis (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-16
    Description: Shark cartilage contains a substance that strongly inhibits the growth of new blood vessels toward solid tumors, thereby restricting tumor growth. The abundance of this factor in shark cartilage, in contrast to cartilage from mammalian sources, may make sharks an ideal source of the inhibitor and may help to explain the rarity of neoplasms in these animals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, A -- Langer, R -- EY04002/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1185-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6193581" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cartilage/*physiology ; Cell Line ; Cornea ; Neoplasms/*blood supply ; *Neovascularization, Pathologic ; Rabbits ; Sharks
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  • 24
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    Cell surface P-glycoprotein associated with multidrug resistance in mammalian cell lines (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-23
    Description: The plasma membranes of hamster, mouse, and human tumor cell lines that display multiple resistance to drugs were examined by gel electrophoresis and immunoblotting. In every case, increased expression of a 170,000-dalton surface antigen was found to be correlated with multidrug resistance. This membrane component is of identical molecular size and shares some immunogenic homology with the previously characterized P-glycoprotein of colchicine-resistant Chinese hamster ovary cells. This finding may have application to cancer therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kartner, N -- Riordan, J R -- Ling, V -- New York, N.Y. -- Science. 1983 Sep 23;221(4617):1285-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6137059" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Membrane Permeability ; *Drug Resistance ; Glycoproteins/immunology/*physiology ; Membrane Proteins/*physiology ; Molecular Weight ; P-Glycoprotein
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  • 25
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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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  • 26
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    Free-metal ion depletion by "Good's" buffers (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-08-19
    Description: Metal-ion affinity (formation) constants were determined for two "Good's" buffers, N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid (TES) and N,N-bis(2-hydroxyethyl)glycine (bicine). The metal chelates formed undergo loss of an internal ligand (alcohol) proton (bicine) and undergo hydrolysis (bicine and TES) and dimerization reactions (TES). Bicine and TES buffer not only hydrogen ions but also metal ions. The metal complexes of "Good's" buffers also buffer hydrogen ions by secondary reactions. The consequences of these reactions are considered in relation to biomedical research.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakon, R -- Krishnamoorthy, C R -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):749-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879173" target="_blank"〉PubMed〈/a〉
    Keywords: Apoenzymes ; *Buffers ; *Chelating Agents ; Glycine/analogs & derivatives ; Kinetics ; Metalloproteins ; Metals ; Tromethamine/analogs & derivatives
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  • 27
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    Detection of antibodies to herpes simplex virus with a continuous cell line expressing cloned glycoprotein D (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-04
    Description: The gene for glycoprotein D of herpes simplex virus type 1 (HSV-1) was expressed in stable mammalian cell lines. Glycoprotein D produced in these cells has a number of antigenic determinants in common with the native glycoprotein. Cell lines expressing glycoprotein D were used in an enzyme-linked immunosorbent assay to detect human antibodies to glycoprotein D. This strategy should prove useful in determining the extent to which the immune response to HSV-1 is directed toward glycoprotein D.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berman, P W -- Dowbenko, D -- Lasky, L A -- Simonsen, C C -- New York, N.Y. -- Science. 1983 Nov 4;222(4623):524-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6312563" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Viral/*analysis ; Base Sequence ; Cell Line ; Clone Cells ; DNA Restriction Enzymes ; DNA, Viral/genetics ; Enzyme-Linked Immunosorbent Assay ; *Genes ; *Genes, Viral ; Humans ; Plasmids ; Simplexvirus/genetics/*immunology ; Tetrahydrofolate Dehydrogenase/genetics ; *Viral Envelope Proteins ; Viral Proteins/*genetics/immunology
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  • 28
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    Anticarcinoma activity in vivo of rhodamine 123, a mitochondrial-specific dye (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-10-14
    Description: Carcinoma cells and normal epithelial cells differ in the mitochondrial retention of a permeant cationic compound, rhodamine 123. The possibility of utilizing this difference in carcinoma chemotherapy was investigated. Rhodamine 123 exhibited anticarcinoma activity in mice, and this activity was potentiated by 2-deoxyglucose.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernal, S D -- Lampidis, T J -- McIsaac, R M -- Chen, L B -- CA22427/CA/NCI NIH HHS/ -- CA29793/CA/NCI NIH HHS/ -- CA33847/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 14;222(4620):169-72.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623064" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinoma/*drug therapy ; Carcinoma, Ehrlich Tumor/*drug therapy ; Cell Line ; Deoxyglucose/therapeutic use ; Drug Synergism ; Drug Therapy, Combination ; Energy Metabolism/drug effects ; Mice ; Mitochondria/drug effects ; Rhodamine 123 ; Rhodamines/*therapeutic use ; Urinary Bladder Neoplasms/*drug therapy ; Xanthenes/*therapeutic use
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  • 29
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    Transcriptional regulation of globin gene expression in the human erythroid cell line K562 (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-17
    Description: The effect of hemin on the rate of synthesis and the level of globin messenger RNA's in the human erythroid cell line K562 was examined by means of cloned hybridization probes specific for each of the human embryonic, fetal, and adult globin genes. Hemin increases both the rate of transcription and the level of accumulation of zeta-, epsilon-, gamma-, and alpha-globin messenger RNA's by a factor of 3 to 5. Thus, hemin induction of globin gene expression in K562 cells is at the level of transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Charnay, P -- Maniatis, T -- HL278989/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 17;220(4603):1281-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6574602" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Erythroblasts/*metabolism ; Erythrocytes/*metabolism ; *Gene Expression Regulation/drug effects ; Globins/*genetics ; Hemin/pharmacology ; Humans ; Leukemia, Myeloid/metabolism ; RNA, Messenger/biosynthesis/genetics ; *Transcription, Genetic/drug effects
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  • 30
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    Productive infection and cell-free transmission of human T-cell leukemia virus in a nonlymphoid cell line (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-09
    Description: Human T-cell leukemia virus (HTLV), American PL isolate, was transmitted by cocultivation and by cell-free filtrates to a nonlymphoid human osteogenic sarcoma (HOS) cell line, designated HOS/PL, but not to nine other lines bearing receptors for HTLV. HOS and HOS/PL cells are not dependent on interleukin-2 and do not express interleukin-2 receptors that are recognized by anti-Tac monoclonal antibody. HTLV released by the Japanese MT2 cell line was also transmitted to HOS cells. The infected HOS cells release substantial titers of progeny HTLV which is antigenically indistinguishable from parental virus and is able to transform T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clapham, P -- Nagy, K -- Cheingsong-Popov, R -- Exley, M -- Weiss, R A -- New York, N.Y. -- Science. 1983 Dec 9;222(4628):1125-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6316502" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Surface/analysis ; Antigens, Viral/analysis ; Cell Line ; Cell Transformation, Viral ; Cell-Free System ; Deltaretrovirus/*growth & development/immunology/ultrastructure ; Humans ; Interleukin-2/metabolism ; Microscopy, Electron ; T-Lymphocytes/immunology ; *Virus Replication
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  • 31
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    Heparan sulfate degradation: relation to tumor invasive and metastatic properties of mouse B16 melanoma sublines (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-06
    Description: After transport in the blood and implantation in the microcirculation, metastatic tumor cells must invade the vascular endothelium and underlying basal lamina. Mouse B16 melanoma sublines were used to determine the relation between metastatic properties and the ability of the sublines to degrade enzymatically the sulfated glycosaminoglycans present in the extracellular matrix of cultured vascular endothelial cells. Highly invasive and metastatic B16 sublines degraded matrix glycosaminoglycans faster than did sublines of lower metastatic potential. The main products of this matrix degradation were heparan sulfate fragments. Intact B16 cells (or their cell-free homogenates) with a high potential for lung colonization degraded purified heparan sulfate from bovine lung at higher rates than did B16 cells with a poor potential for lung colonization. Analysis of the degradation fragments indicated that B16 cells have a heparan sulfate endoglycosidase. Thus the abilities of B16 melanoma cells to extravasate and successfully colonize the lung may be related to their capacities to degrade heparan sulfate in the walls of pulmonary blood vessels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakajima, M -- Irimura, T -- Di Ferrante, D -- Di Ferrante, N -- Nicolson, G L -- R01-AM-26482/AM/NIADDK NIH HHS/ -- R01-CA-28867/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 May 6;220(4597):611-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6220468" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Glycosaminoglycans/*metabolism ; Glycoside Hydrolases/metabolism ; Heparitin Sulfate/*metabolism ; Melanoma/enzymology/*physiopathology ; Mice ; *Neoplasm Invasiveness ; *Neoplasm Metastasis
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    A glycolipid antigen associated with Burkitt lymphoma defined by a monoclonal antibody (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-29
    Description: The antigen defined by a rat monoclonal antibody directed to a Burkitt lymphoma cell line was identified as globotriaosylceramide [Gal alpha (1 leads to 4)-Gal beta (1 leads to 4)-Glc beta (1 leads to 1)-ceramide]. The antibody demonstrated a strict steric specificity since it did not react with globoisotriaosylceramide [Gal alpha (1 leads to 3)-Gal beta (1 leads to 4)-Glc beta (1 leads to 1)-ceramide], the positional isomer of the antigen associated with the Burkitt lymphoma. Chemical analysis of various Burkitt lymphoma cell lines revealed that the Burkitt lymphoma cells contained more than 100 times as much of the glycolipid antigen as was found in other human lymphoma and leukemia cell lines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nudelman, E -- Kannagi, R -- Hakomori, S -- Parsons, M -- Lipinski, M -- Wiels, J -- Fellous, M -- Tursz, T -- CA 19224/CA/NCI NIH HHS/ -- CA 20026/CA/NCI NIH HHS/ -- GM 23100/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):509-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836295" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*immunology ; Antigens, Neoplasm/*immunology ; Burkitt Lymphoma/*immunology ; Cell Line ; Cell Transformation, Neoplastic/metabolism ; Erythrocytes/immunology ; Globosides/*immunology ; Glycosphingolipids/*immunology ; Humans ; Rabbits ; Rats ; *Trihexosylceramides
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    Suppressor T cell action inhibits the expression of an excluded immunoglobulin gene (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-24
    Description: Cells of the murine plasmacytoid line MOPC-315 synthesize two distinct immunoglobulin light chains: a normal lambda II protein, which is incorporated into secretory and surface-bound immunoglobulin, and a truncated, nonfunctional lambda I protein found only in the cytoplasm. Idiotype-specific suppressor T lymphocytes selectively inhibit the expression of both lambda II- and lambda I-specific messenger RNA by MOPC-315 cells. This finding demonstrates that phenotypically excluded light chain genes can be subject to immunoregulatory control and suggests that the expression of divergent lambda isotypes may be coordinately regulated in immunoglobulin-secreting cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parslow, T G -- Milburn, G L -- Lynch, R G -- Granner, D K -- AM25295/AM/NIADDK NIH HHS/ -- CA28848/CA/NCI NIH HHS/ -- CA32275/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1389-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6222474" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Gene Expression Regulation ; Immunoglobulin Light Chains/genetics ; Immunoglobulin lambda-Chains/genetics ; Immunoglobulins/*genetics ; Mice ; Mice, Inbred BALB C ; Plasmacytoma/genetics/immunology ; RNA, Messenger/biosynthesis ; T-Lymphocytes, Regulatory/*physiology
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    A developmentally regulated neuraminidase activity in Trypanosoma cruzi (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-03-25
    Description: The human pathogen Trypanosoma cruzi (Y strain) contains a neuraminidase activity that varies widely in the different developmental stages of the parasite. The specific neuraminidase activity of infective trypomastigotes obtained from tissue culture and from the bloodstream of infected mice is 7 to 15 times higher than that of the acellular culture forms. Amastigotes were devoid of enzyme activity. The enzyme has a pH optimum of 6.0 to 6.5. Live trypanosomes released sialic acid from human erythrocytes and plasma glycoproteins. Several sialyl compounds were hydrolyzed by the parasite, but the best substrate was the protein orosomucoid. Erythrocytes from infected mice with T. cruzi parasitemia were agglutinated by peanut lectin and the hemagglutination titer was correlated with the degree of parasitemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pereira, M E -- IRO1-AI-18102-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1444-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6338592" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Kinetics ; Neuraminidase/*metabolism ; Substrate Specificity ; Trypanosoma cruzi/enzymology/*growth & development
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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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    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)
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    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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    Correlation of glucocorticoid receptor binding sites on MMTV proviral DNA with hormone inducible transcription (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-23
    Description: Steroid hormones, when complexed to their receptors, recognize and bind specific DNA sequences and subsequently induce increased levels of transcription. The mechanisms of steroid hormone action were analyzed by constructing chimeric DNA molecules from portions of mouse mammary tumor virus envelope and long terminal repeat (LTR) regions ligated to the thymidine kinase (tk) gene of herpes simplex virus. This construction allowed the tk gene to be expressed in a hormone-responsive fashion upon transfection into Ltk- cells. Comparison of transcription data with in vitro binding data showed that hormone-responsive transcription can be directly correlated to the presence of steroid hormone receptor binding sites on the DNA. There are at least two such receptor binding sites in the LTR region, one between -202 and -137 and another between -137 and -50 base pairs from the RNA cap site, as well as a site near the 5' end of the envelope region. These results strengthen the hypothesis that steroid-receptor complexes regulate genes primarily by binding to DNA sites near the promoter region and thereby modulate transcription.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pfahl, M -- McGinnis, D -- Hendricks, M -- Groner, B -- Hynes, N E -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1341-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6318311" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cell Line ; Chimera ; DNA, Viral/*metabolism ; Glucocorticoids/metabolism/*pharmacology ; Mammary Tumor Virus, Mouse/*analysis ; Mice ; Receptors, Glucocorticoid/*metabolism ; Receptors, Steroid/*metabolism ; Repetitive Sequences, Nucleic Acid ; Transcription, Genetic/*drug effects ; Transfection ; Triamcinolone Acetonide/metabolism
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    1,25-dihydroxyvitamin D3 receptors in human leukocytes (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-16
    Description: A 1,25-dihydroxyvitamin D3 receptor macromolecule was detected in peripheral mononuclear leukocytes from normal humans. This macromolecule was found to be present in monocytes but absent from normal resting peripheral B and T lymphocytes. However, it was present in established lines of malignant B, T, and non-B, non-T human lymphocytes, as well as in T and B lymphocytes obtained from normal humans and activated in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Provvedini, D M -- Tsoukas, C D -- Deftos, L J -- Manolagas, S C -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1181-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6310748" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/analysis ; Cell Line ; Humans ; Leukemia/analysis ; Leukocytes/*analysis ; Lymphocyte Activation ; Monocytes/analysis ; Receptors, Calcitriol ; Receptors, Steroid/*analysis ; T-Lymphocytes/analysis
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    Regulation of the macrophage content of neoplasms by chemoattractants (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-08
    Description: Factor chemotactic for mononuclear phagocytes was found in supernatant fluids of cultured human and mouse tumor cells. In 11 mouse tumors there was a correlation observed between chemotactic activity and macrophage content of neoplastic tissues. Tumor-derived chemoattractants appear to participate in the regulation of tumor-associated macrophages.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bottazzi, B -- Polentarutti, N -- Acero, R -- Balsari, A -- Boraschi, D -- Ghezzi, P -- Salmona, M -- Mantovani, A -- R01 CA 12764/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 8;220(4593):210-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828888" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chemotactic Factors/*physiology ; Humans ; Leukemia/immunology ; Lymphoma/immunology ; Macrophages/*physiology ; Male ; Mice ; Mice, Inbred C57BL ; Neoplasm Transplantation ; Neoplasms/*immunology/physiopathology ; Neoplasms, Experimental/immunology ; Sarcoma/immunology
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    Myosin light chain phosphorylation does not modulate cross-bridge cycling rate in mouse skeletal muscle (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-06-10
    Description: An attempt was made to determine whether phosphorylation of the myosin light chain represents a thick filament-associated mechanism for modulating the rate of cross-bridge cycling in mouse skeletal muscle. When the degree of light chain phosphorylation was varied independently of tetanus duration, there was no correlation of phosphorylation with cross-bridge turnover rate, as measured by the shortening velocity of the muscle. It is concluded that in intact skeletal muscle phosphorylation of the myosin light chain does not in itself modulate cross-bridge cycling rate and that previously reported changes in cycling rate were due to other factors that may vary with tetanus duration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Butler, T M -- Siegman, M J -- Mooers, S U -- Barsotti, R J -- AM 00973/AM/NIADDK NIH HHS/ -- HL 15835/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1167-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857239" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Kinetics ; Mice ; Muscle Contraction ; Muscles/*metabolism/physiology ; Myosins/*metabolism/physiology ; Phosphorylation ; Rats
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    Lymphoid cell-glioma cell interaction enhances cell coat production by human gliomas: novel suppressor mechanism (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-05-13
    Description: Certain human glioma lines produce mucopolysaccharide coats that impair the generation of cytolytic lymphocytes in response to these lines in vitro. Coat production is substantially enhanced by the interaction of glioma cells with a macromolecular factor released by human peripheral blood mononuclear cells in culture. This interaction thus constitutes an unusual mechanism by which inflammatory cells may nonspecifically suppress the cellular immune response to at least one class of solid tumors in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dick, S J -- Macchi, B -- Papazoglou, S -- Oldfield, E H -- Kornblith, P L -- Smith, B H -- Gately, M K -- New York, N.Y. -- Science. 1983 May 13;220(4598):739-42.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6220469" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cytotoxicity, Immunologic ; Glioma/immunology/*metabolism ; Glycosaminoglycans/biosynthesis ; Humans ; Hyaluronoglucosaminidase/metabolism ; Immunity, Cellular ; Lymphocytes/immunology/*metabolism ; Mice ; Rabbits
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    Mutation affecting the 12th amino acid of the c-Ha-ras oncogene product occurs infrequently in human cancer (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-06-10
    Description: A point mutation alters the 12th amino acid of the c-Ha-ras oncogene product p21 in a human bladder cancer cell line. This is, at present, the only mutation known to result in a human transforming gene. This mutation may therefore represent a possible target for mutagenesis leading to carcinogenesis in humans. By means of restriction enzyme analysis, 29 human cancers, including 20 primary tumor tissues, derived from organs commonly exposed to environmental carcinogens, were tested for the presence of this mutation. None of ten primary bladder carcinomas exhibited the mutation; nor did nine colon carcinomas or ten carcinomas of the lung. Thus the point mutation affecting the 12th amino acid of the c-Ha-ras gene product, while a valuable model for carcinogenesis, does not appear to play a role in the development of most human epithelial cancers of the bladder, colon, or lung.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feinberg, A P -- Vogelstein, B -- Droller, M J -- Baylin, S B -- Nelkin, B D -- 09071/PHS HHS/ -- 24592/PHS HHS/ -- 31053/PHS HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1175-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304875" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/genetics ; Carcinoma, Small Cell/genetics ; Carcinoma, Squamous Cell/genetics ; Carcinoma, Transitional Cell/genetics ; Cell Line ; Cell Transformation, Neoplastic/metabolism ; Colonic Neoplasms/genetics ; Humans ; Lung Neoplasms/genetics ; *Mutation ; Neoplasm Proteins/*genetics ; *Oncogenes ; Proto-Oncogene Proteins p21(ras) ; Urinary Bladder Neoplasms/genetics
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    Oncogene from human EJ bladder carcinoma is located on the short arm of chromosome 11 (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-02-04
    Description: The human cellular homolog of the transforming DNA sequence isolated from the bladder carcinoma cell line EJ was localized on the short arm of human chromosome 11 by Southern blot analysis of human-rodent hybrid cell DNA. This locus contains human sequences homologous to the Harvey murine sarcoma virus v-Ha-ras oncogene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Martinville, B -- Giacalone, J -- Shih, C -- Weinberg, R A -- Francke, U -- New York, N.Y. -- Science. 1983 Feb 4;219(4584):498-501.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6297001" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Chromosome Mapping ; *Chromosomes, Human, 6-12 and X ; DNA Restriction Enzymes ; Humans ; Hybrid Cells ; Nucleic Acid Hybridization ; *Oncogenes ; Urinary Bladder Neoplasms/*genetics
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    Sex differences in serotonin 1 receptor binding in rat brain (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-10-21
    Description: Male and female rats exhibit sex differences in binding by serotonin 1 receptors in discrete areas of the brain, some of which have been implicated in the control of ovulation and of gonadotropin release. The sex-specific changes in binding, which occur in response to the same hormonal (estrogenic) stimulus, are due to changes in the number of binding sites. Castration alone also affects the number of binding sites in certain areas. The results lead to the conclusion that peripheral hormones modulate binding by serotonin 1 receptors. The status of the serotonin receptor system may affect the reproductive capacity of an organism and may be related to sex-linked emotional disturbances in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fischette, C T -- Biegon, A -- McEwen, B S -- AM06122/AM/NIADDK NIH HHS/ -- NS06080/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 21;222(4621):333-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623080" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*metabolism ; Brain Mapping ; Castration ; Cell-Free System ; Estradiol/*pharmacology ; Female ; Glucosephosphate Dehydrogenase/metabolism ; Kinetics ; Male ; Pituitary Gland/enzymology ; Rats ; Receptors, Serotonin/drug effects/*metabolism ; *Sex Factors
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    Tumor promotion by phorbol esters in skin: evidence for a memory effect (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-01
    Description: By means of a two-stage promotion protocol in mouse epidermis with 12-O-tetradecanoylphorbol-13-acetate as first-stage promoter and 12-O-retinoylphorbol-13-acetate as second-stage promoter, the effects of the former that are critical and obligatory for tumor promotion were shown to be irreversible in nature for at least 8 weeks. The reversibility of tumor promotion was related to the second stage of promotion, reflecting the reversibility of epidermal hyperplasia induced by 12-O-tetradecanoylphorbol-13-acetate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Furstenberger, G -- Sorg, B -- Marks, F -- New York, N.Y. -- Science. 1983 Apr 1;220(4592):89-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6828884" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogens/*pharmacology ; Cell Line ; Epidermis/drug effects ; Female ; Hyperplasia/chemically induced ; Mice ; Mice, Inbred Strains ; Neoplasms, Experimental/chemically induced ; Phorbol Esters/*adverse effects ; Phorbols/*adverse effects ; Precancerous Conditions/chemically induced ; Skin Neoplasms/*chemically induced ; Tetradecanoylphorbol Acetate/*adverse effects ; Time Factors
    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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  • 47
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    Clerics urge ban on altering germline cells (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, C -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1360-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6574603" target="_blank"〉PubMed〈/a〉
    Keywords: Advisory Committees ; Cell Line ; *Ethics, Medical ; Federal Government ; Genetic Diseases, Inborn/therapy ; *Genetic Engineering ; *Germ Cells ; *Government Regulation ; Human Characteristics ; Humans ; Risk Assessment ; United States ; cells has been signed by leaders of almost every major church group in the United ; States. Some of the religious leaders, while not certain that a total moratorium ; should be placed on altering germline cells, signed the statement in order to ; stimulate public debate on the issue. Legislation has recently been introduced in ; Congress to set up a committee to monitor genetic engineering and its human ; applications, but author Jeremy Rifkin, the impetus behind the church leaders' ; resolution, argues that such tampering threatens the gene pool and should be ; banned altogether.
    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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  • 48
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    Salt-induced conversion of B-DNA to Z-DNA inhibited by aflatoxin B1 (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-03-25
    Description: The carcinogen aflatoxin B1 was reacted with a polymer of alternating deoxyguanine and deoxycytosine residues to determine the effect that adduct formation has on the conversion of this polymer from the right-handed B-DNA form found at low salt concentrations to the left-handed Z-DNA form found at high salt concentrations. Reaction with aflatoxin strongly inhibited the salt-induced conversion of this polymer from B-DNA to Z-DNA. This inhibition could be detected even at relatively low binding levels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nordheim, A -- Hao, W M -- Wogan, G N -- Rich, A -- New York, N.Y. -- Science. 1983 Mar 25;219(4591):1434-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6402818" target="_blank"〉PubMed〈/a〉
    Keywords: Aflatoxin B1 ; Aflatoxins/*pharmacology ; Circular Dichroism ; DNA/*metabolism ; Kinetics ; Nucleic Acid Conformation ; Osmolar Concentration ; Sodium Chloride/pharmacology
    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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  • 49
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    Scientists settle cell line dispute (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):393-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836281" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Monoclonal/immunology ; California ; Cell Line ; Female ; Humans ; *Hybridomas ; Internationality ; Japan ; Jurisprudence ; Neoplasms/therapy ; potential use in cancer therapy, has been signed between Ivor Royston, an ; oncologist at the University of California at San Diego, and Hideaki Hagiwara, a ; visiting Japanese researcher who took part of the cell line back to Japan without ; permission and later injected some of the cells into himself, his parents, and ; other volunteers. The question of ownership was complicated by the fact that ; cells from Hagiwara's mother, a cancer patient, had been used to produce the ; hybridoma.
    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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  • 50
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    Labeled putrescine as a probe in brain tumors (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-12
    Description: The polyamine metabolism of transplanted N-nitrosomethylurea-derived rat glioma was determined with radiolabeled putrescine used as a marker for malignancy. The uptake of putrescine in vivo was complete within 5 minutes and was specific for tumor tissue. The conversion of putrescine to spermine and other metabolites by the tumor was rapid, in contrast to the case for adjacent normal brain. These results suggest that putrescine labeled with carbon-11 may be used as a positron-emission tomographic tracer for the selective metabolic imaging of brain tumor and may be used in an appropriate model as a marker for tumor growth rate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Volkow, N -- Goldman, S S -- Flamm, E S -- Cravioto, H -- Wolf, A P -- Brodie, J D -- NS15638/NS/NINDS NIH HHS/ -- S07RR05399/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):673-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6603020" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Brain Neoplasms/*radionuclide imaging ; Glioma/radionuclide imaging ; Kinetics ; Neoplasm Transplantation ; *Putrescine/metabolism ; Rats ; Tomography, Emission-Computed
    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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