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  • Mice  (201)
  • American Association for the Advancement of Science (AAAS)  (201)
  • Annual Reviews
  • Nature Publishing Group
  • 1980-1984  (201)
  • 1935-1939
  • 1983  (111)
  • 1982  (90)
  • 1939
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (201)
  • Annual Reviews
  • Nature Publishing Group
  • Springer  (4)
Years
  • 1980-1984  (201)
  • 1935-1939
Year
  • 1
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    Sensitivity to carcinogenesis in nude mice: skin tumors caused by transplacental exposure to ethylnitrosourea (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-11-12
    Description: Female athymic nude mice and their phenotypically normal littermates were exposed transplacentally to ethylnitrosourea. Skin tumors (papillomas and sebaceous adenomas) developed on the nude mice with an almost tenfold greater incidence than on their haired littermates. Skin tumors were also induced on nude mice but not haired controls by direct intraperitoneal treatment with ethylnitrosourea. These results indicate that nude mice have higher than normal susceptibility to carcinogenesis under some circumstances.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, L M -- Last-Barney, K -- Budinger, J M -- CA 08748/CA/NCI NIH HHS/ -- CA 22498/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Nov 12;218(4573):682-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7134965" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoma/chemically induced ; Animals ; *Ethylnitrosourea ; Female ; *Maternal-Fetal Exchange ; Mice ; Mice, Nude/*physiology ; Neoplasms, Experimental/chemically induced ; *Nitrosourea Compounds ; Pregnancy ; Sebaceous Gland Neoplasms/chemically induced ; Skin Neoplasms/*chemically induced
    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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    Rhodamine-123 selectively reduces clonal growth of carcinoma cells in vitro (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-12-10
    Description: Rhodamine-123, a cationic laser dye, markedly reduced the clonal growth of carcinoma cells but had little effect on nontumorigenic epithelial cells in vitro. This selective inhibitory effect of Rhodamine-123 on some carcinomas is unusual since known anticancer drugs, such as arabinosyl cytosine and methotrexate, have not been shown to exhibit such selectivity in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernal, S D -- Lampidis, T J -- Summerhayes, I C -- Chen, L B -- New York, N.Y. -- Science. 1982 Dec 10;218(4577):1117-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7146897" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinoma/*drug therapy ; Cell Line ; Cell Survival/drug effects ; Mice ; Mitochondria/metabolism ; Neoplasms, Experimental/drug therapy ; Rhodamine 123 ; Rhodamines/metabolism/therapeutic use ; Time Factors ; Urinary Bladder Neoplasms/drug therapy
    Print ISSN: 0036-8075
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  • 3
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    Mice regrow the tips of their foretoes (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-20
    Description: Mice will replace the tip of a foretoe when it is amputated distal to the last interphalangeal joint. Amputation of the digit more proximal to the joint does not result in regrowth of the foretoe. Though this growth shares certain similarities with the epimorphic regeneration of amphibian limbs, the two processes are not the same. The regrowth reported here in mice is probably similar to the scattered clinical reports of fingertips regeneration in children, and presents a model system with which to explore the controls of wound healing and tissue reconstruction in mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Borgens, R B -- CA 20920/CA/NCI NIH HHS/ -- NS 18456/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 20;217(4561):747-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7100922" target="_blank"〉PubMed〈/a〉
    Keywords: Amputation ; Animals ; Child ; Humans ; Mice ; Mice, Inbred C3H ; *Regeneration ; Toe Joint ; Toes/anatomy & histology/*physiology ; Wound Healing
    Print ISSN: 0036-8075
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  • 4
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    Radiosensitization of hypoxic tumor cells by depletion of intracellular glutathione (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-06
    Description: Depletion of glutathione in Chinese hamster ovary cells in vitro by diethyl maleate resulted in enhancement of the effect of x-rays on cell survival under hypoxic conditions but not under oxygenated conditions. Hypoxic EMT6 tumor cells were similarly sensitized in vivo. The action of diethyl maleate is synergistic with the effect of the electron-affinic radiosensitizer misonidazole, suggesting that the effectiveness of misonidazole in cancer radiotherapy may be improved by combining it with drugs that deplete intracellular glutathione.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bump, E A -- Yu, N Y -- Brown, J M -- CA-15201/CA/NCI NIH HHS/ -- CM-87207/CM/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 6;217(4559):544-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089580" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anoxia ; Cell Survival/drug effects/*radiation effects ; Cells, Cultured ; Cricetinae ; Cricetulus ; Drug Synergism ; Glutathione/*metabolism ; Maleates/administration & dosage ; Mice ; Mice, Inbred BALB C ; Misonidazole/administration & dosage ; Neoplasms, Experimental/metabolism ; *Oxygen Consumption
    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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  • 5
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    Deficiency of functional messenger RNA for a developmentally regulated beta-crystallin polypeptide in a hereditary cataract (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-30
    Description: The messenger RNA for a beta-crystallin polypeptide with a molecular size of 27 kilodaltons, first detected 5 to 10 days after birth in the normal mouse lens and the Nakano mouse cataract, was not detected in the Philly mouse cataract with translation in vitro. The heterozygous Philly lens had intermediate levels of the 27-kilodalton beta-crystallin polypeptide and exhibited delayed onset of the cataract. The deficiency of functional 27-kilodalton beta-crystallin messenger RNA is the earliest lesion reported yet for the Philly lens and points to a transcriptional or posttranscriptional developmental defect in this hereditary cataract.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carper, D -- New York, N.Y. -- Science. 1982 Jul 30;217(4558):463-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6178163" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cataract/*genetics ; Cell-Free System ; Crosses, Genetic ; Crystallins/*genetics ; Mice ; Mice, Inbred Strains ; Protein Biosynthesis ; Proteins ; RNA/genetics ; RNA Splicing ; RNA, Messenger/*genetics
    Print ISSN: 0036-8075
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  • 6
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    Development of mouse embryos in vitro: preimplantation to the limb bud stage (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-10-01
    Description: Mouse embryos were grown successfully in vitro from the blastocyst stage to the limb bud stage. Mouse blastocysts grown in vitro for 10 days showed blood circulation in the yilk sac, forelimb buds, and the primordia of liver, pancreas, and lungs. These characteristics are indicative of a developmental stage equivalent to one-half of the total gestation period in utero. Improvements in culture conditions from days 7 to 9 have made it feasible to culture mouse blastocysts beyond the early somite stage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, L T -- Hsu, Y C -- AM 19535/AM/NIADDK NIH HHS/ -- AM 28550/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 1;218(4567):66-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123220" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/*physiology ; Cell Differentiation ; Culture Media ; Culture Techniques ; Embryo, Mammalian/*physiology ; Female ; Fetal Blood ; Humans ; Mice ; Pregnancy ; Yolk Sac/physiology
    Print ISSN: 0036-8075
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  • 7
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    Receptors for maleylated proteins regulate secretion of neutral proteases by murine macrophages (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-11-05
    Description: Receptors for maleylated or acetylated proteins as well as for alpha-2-macroglobulin-protease complexes on macrophages serve as scavengers by mediating the uptake of macromolecules from the extracellular compartment. Described in this report is a novel function of these receptors on macrophages: regulation of neutral protease secretion. The binding of maleylated bovine serum albumin to macrophages triggered secretion of three neutral proteases: neutral caseinases, plasminogen activator, and cytolytic proteinase. Release of acid phosphatase, however, was not induced. An important biological consequence of protease secretion by macrophages, tumor-cytolysis, was also triggered by engagement of the receptor for maleylated bovine serum albumin. By contrast, the binding of alpha-2-macroglobulin-protease complexes to the macrophages suppressed secretion of all three proteases. Thus two receptors heretofore believed to serve principally as scavengers also regulate secretory functions of macrophages.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnson, W J -- Pizzo, S V -- Imber, M J -- Adams, D O -- New York, N.Y. -- Science. 1982 Nov 5;218(4572):574-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6289443" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Glycoproteins/*metabolism ; Macrophages/*enzymology ; *Metalloendopeptidases ; Mice ; Peptide Hydrolases/*secretion ; Plasminogen Activators/secretion ; Receptors, Cell Surface/*physiology
    Print ISSN: 0036-8075
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  • 8
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    Alpha-substituted gamma-butyrolactones: new class of anticonvulsant drugs (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-10
    Description: Alkyl-Substituted gamma-butyrolactones were synthesized and tested for their convulsant and anticonvulsant actions in mice and guinea pigs. The alpha-substituted compounds, alpha, alpha-dimethyl-, and alpha-ethyl-alpha-methyl-gamma-butyrolactone were anticonvulsant compounds with a spectrum of activity similar to that of ethosuximide. In contrast, beta-substituted compounds were convulsant agents similar to picrotoxinin. The alpha-substituted-gama-butyrolactones represent a new class of anticonvulsant drug with experimental and clinical potential.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klunk, W E -- McKeon, A -- Covey, D F -- Ferrendelli, J A -- GM-07200/GM/NIGMS NIH HHS/ -- GM-24483/GM/NIGMS NIH HHS/ -- NS-14834/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1982 Sep 10;217(4564):1040-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6810462" target="_blank"〉PubMed〈/a〉
    Keywords: *4-Butyrolactone/analogs & derivatives/*therapeutic use/toxicity ; Animals ; *Anticonvulsants ; Chemical Phenomena ; Chemistry ; Convulsants ; Drug Evaluation, Preclinical ; Electroencephalography ; Epilepsy, Absence/drug therapy ; Ethosuximide/pharmacology ; *Furans/*therapeutic use ; Guinea Pigs ; Mice ; Structure-Activity Relationship ; Trimethadione/pharmacology
    Print ISSN: 0036-8075
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  • 9
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    alpha A-crystallin messenger RNA of the mouse lens: more noncoding than coding sequences (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-19
    Description: The 14S messenger RNA (1300 to 1500 nucleotides) for the alpha A chain of alpha-crystallin of the mammalian lens is nearly three times larger than required to code for the polypeptide that contains 173 amino acids. As a means of accounting for this anomaly, a complementary DNA clone for the mouse alpha A-crystallin messenger RNA was constructed in pBR322 and sequenced. Derivation of the protein sequence from the nucleic acid sequence showed that mouse alpha A-crystallin is similar to that of other organisms. The messenger RNA contains 536 nucleotides located on the 3' side of the coding region, excluding the polyadenylate stretch. This 3' sequence does not encode any other crystallin and has multiple termination codons in the three possible reading frames.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, C R -- Shinohara, T -- Piatigorsky, J -- New York, N.Y. -- Science. 1982 Feb 19;215(4535):985-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7156978" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; Crystallins/*genetics ; Mice ; RNA, Messenger/*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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  • 10
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    Serum from monkeys with histories of fetal wastage causes abnormalities in cultured rat embryos (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-01-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klein, N W -- Plenefisch, J D -- Carey, S W -- Fredrickson, W T -- Sackett, G P -- Burbacher, T M -- Parker, R M -- HD02774/HD/NICHD NIH HHS/ -- HD08633/HD/NICHD NIH HHS/ -- RR00166/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 1;215(4528):66-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053560" target="_blank"〉PubMed〈/a〉
    Keywords: Abortion, Veterinary/*blood ; Animals ; Congenital Abnormalities/*etiology ; Ectogenesis ; Female ; Macaca nemestrina/blood ; Mice ; Pregnancy ; Rats
    Print ISSN: 0036-8075
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  • 11
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    Brain receptors for appetite discovered (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-10-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolata, G -- New York, N.Y. -- Science. 1982 Oct 29;218(4571):460-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123243" target="_blank"〉PubMed〈/a〉
    Keywords: Amphetamines ; Animals ; Appetite/*physiology ; Brain/*physiology ; *Carrier Proteins ; Mice ; Receptors, Adrenergic/*physiology
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  • 12
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    Actin distribution patterns in the mouse neural tube during neurulation (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-01-08
    Description: With the use of antibodies to actin and indirect immunofluorescent techniques regions of increased actin concentration were demonstrated first in basal and later in apical areas of mouse neuroepithelial cells. These patterns of staining corresponded to shape changes observed in cranial neural folds as they initially elevated from the neural plate and later moved toward the midline.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sadler, T W -- Greenberg, D -- Coughlin, P -- Lessard, J L -- HD-12295/HD/NICHD NIH HHS/ -- HD-14220/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):172-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7031898" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Animals ; Brain/embryology ; Cytoskeleton/*ultrastructure ; Fluorescent Antibody Technique ; Mice ; Morphogenesis ; Nervous System/*embryology/ultrastructure
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  • 13
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    Tumor metastasis is not due to adaptation of cells to a new organ environment (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-01-08
    Description: Murine B16 melanoma cells were adapted for lung survival and growth by allowing them to attach to Bio-Carrier beads and injecting the beads intravenously into normal mice. The beads lodged mechanically in the microcirculation of the lung. When the melanoma cells had grown into visible tumors from the arrested beads, the tumors were removed and the cells were dispersed, cultured to remove normal cells, and reattached to new beads. The process was repeated nine times. Previously another B16 subline was injected intravenously as a suspension of separate tumor cells. Those cells that survived and colonized the lungs were harvested, cultured, and injected again. This selection process was also repeated nine times. Only the subline that was injected in suspension was more metastatic than the parental line, indicating that metastasis involves selection of preexistent metastatic cells and is not an adaptive process by which all cells gradually acquire the ability to grow at particular organ sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nicolson, G L -- Custead, S E -- R01-CA28867/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):176-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7053568" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Lung Neoplasms/pathology/*secondary ; Melanoma/*pathology ; Mice ; *Neoplasm Metastasis ; Neoplasms, Experimental/pathology
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  • 14
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    Increased axonal proteolysis in myelin-deficient mutant mice (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-19
    Description: Protein degradation within retinal ganglion cell axons in vitro is 50 to 110 percent faster than normal in mutant mice exhibiting deficiencies of myelin in the central nervous system. Proteolysis is increased proximally and distally within retinal ganglion cell axons of mice carrying the jumpy mutation or its allele, myelin synthesis deficiency, and is increased distally within those axons of quaking mice. The proteolytic defect is axon (neuron)-specific since the rate of protein degradation within glial cells is normal. Increased axonal proteolysis does not bear a simple relation to hypomyelination since shiverer, another mouse mutant deficient in central myelin, displayed normal rates of axonal protein degradation under the same conditions. These observations suggest an abnormal axon-glial interaction in mice with primary glial defects and raise the possibility that the functioning of histologically normal axons (neurons) may be altered in dysmyelinating diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nixon, R A -- NS15494/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Feb 19;215(4535):999-1001.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7156980" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*metabolism ; Mice ; *Mice, Neurologic Mutants ; Neuroglia/metabolism ; Neurons ; Proteins/*metabolism ; Retina/cytology/*metabolism
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  • 15
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    Somatic mutation in genes for the variable portion of the immunoglobulin heavy chain (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-04-16
    Description: The size of the gene pool potentially encoding antibodies to p-azophenyl arsonate has been examined. A heavy chain-specific full-length complementary DNA clone has been constructed with the use of messenger RNA from a hybridoma that produces antibodies to the arsonate hapten and bears nearly a full complement of the determinants comprising the cross-reactive idiotype (CRI). The sequences of both the complementary DNA clone and the corresponding immunoglobulin heavy chain have been independently determined. A probe for the variable region gene was prepared from the original heavy chain complementary DNA clone and used to analyze, by Southern filter hybridization, genomic DNA from both A/J (CRI positive) and BALB/c (CRI negative) mice. Approximately 20 to 25 restriction fragments containing "germline" variable region gene segments were detected in both strains, and many are shared by both, Since 35 CRI-positive heavy chains have been partially sequenced thus far and 31 are different, the results of the hybridization analysis suggest that somatic mutation events involving the variable region gene segments of the heavy chain play a role in the origin of the amino acid sequence diversity seen in this system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sims, J -- Rabbitts, T H -- Estess, P -- Slaughter, C -- Tucker, P W -- Capra, J D -- A112127/PHS HHS/ -- AI-06020/AI/NIAID NIH HHS/ -- AI18016/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):309-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6801765" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites, Antibody/*genetics ; Genes ; Haptens ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Idiotypes/genetics ; Immunoglobulin Variable Region/*genetics ; Mice ; *Mutation
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  • 16
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    Evidence for the clonal origin of spontaneous metastases (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-23
    Description: A cultured cell line of the K-1735 melanoma was x-irradiated to induce chromosome breakage and rearrangements and then was implanted into the footpads of syngenic C3H mice. Spontaneous lung metastases were isolated from different animals, established in culture as individual lines, and then karyotyped. Within certain metastases, the same chromosomal abnormality (or abnormalities) (recombinant chromosomes) was found in all the cells examined. Most metastases differed from one another in that they exhibited characteristic combinations of chromosomal markers. These findings indicated that the metastases were clonal and that they probably originated from different progenitor cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Talmadge, J E -- Wolman, S R -- Fidler, I J -- N01-CO-75380/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 23;217(4557):361-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6953592" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chromosome Aberrations ; Genetic Markers ; Karyotyping ; Lung Neoplasms/secondary ; Melanoma ; Mice ; Mice, Inbred C3H ; Neoplasm Metastasis/*pathology ; Neoplasms, Experimental/pathology
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  • 17
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    Autoradiographic identification of ornithine decarboxylase in mouse kidney by means of alpha-[5-14C]difluoromethylornithine (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-02
    Description: alpha-Difluoromethylornithine is an enzyme-activated irreversible inhibitor of ornithine decarboxylase that forms a covalent bond with the enzyme. When alpha-[5-14C]difluoromethylornithine was administered to androgen-treated mice, only ornithine decarboxylase became labeled. Autoradiographic examination of kidney, liver, and brain indicated much more extensive incorporation of labeled difluoromethylornithine into kidney protein than into the protein of the other tissues. Such incorporation was greatly reduced by prior treatment of the mice with cycloheximide. These results correlate with the presence of ornithine decarboxylase activity which is much higher in the kidney than in the other tissues and is lost rapidly when protein synthesis is inhibited. The binding of this drug in vivo, therefore, is useful for determining the distribution of ornithine decarboxylase. The enzyme was predominantly located in the proximal tubule cells of the kidney in androgen-treated mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pegg, A E -- Seely, J -- Zagon, I S -- 1T32HL-07223/HL/NHLBI NIH HHS/ -- CA 18138/CA/NCI NIH HHS/ -- DA-01618/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 2;217(4554):68-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6806900" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autoradiography ; Brain/enzymology ; Carbon Radioisotopes ; Carboxy-Lyases/*metabolism ; Eflornithine ; Kidney/drug effects/*enzymology ; Liver/enzymology ; Mice ; Organ Specificity ; Ornithine/*analogs & derivatives/pharmacology ; Ornithine Decarboxylase/*metabolism ; Ornithine Decarboxylase Inhibitors ; Testosterone/pharmacology
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  • 18
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    Transplantation of leukemic bone marrow treated with cytotoxic antileukemic antibodies and complement (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-16
    Description: The ability of antiserum against murine L1210 leukemia to remove residual leukemia cells from murine bone marrow was investigated. Leukemic marrow was treated in vitro with antiserum and complement and used to hematologically reconstitute mice that had been irradiated with doses lethal to bone marrow. Following infusion of treated leukemic marrow, normal marrow returned without evidence of leukemia. More than 90 percent of the animals have survived for 11 months without untoward effects, suggesting that the technique may be of use in the treatment of acute leukemia in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trigg, M E -- Poplack, D G -- New York, N.Y. -- Science. 1982 Jul 16;217(4556):259-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7046048" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies ; *Bone Marrow Transplantation ; Cell Survival ; *Complement System Proteins ; Cytotoxicity, Immunologic ; Female ; Leukemia L1210/*immunology/therapy ; Male ; Mice ; Mice, Inbred DBA
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  • 19
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    Proliferative capacity of murine hematopoietic stem cells in vitro (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-03-26
    Description: Large numbers of granulocytes can be collected repeatedly from the supernatant medium of long-term cultures of mouse bone marrow cells. A constant relationship was found between the number of adherent hematopoietic stem cells and the lifetime cell production per culture. The data indicate that there is a limit to the proliferative capacity of normal and of irradiated stem cells. A similar limitation was found in the production of marked granulocytes from clonal cultures of "beige" C57 (bg/bgJ) stem cells placed in limiting dilutions into stromal culture layers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reincke, U -- Hannon, E C -- Rosenblatt, M -- Hellman, S -- CA 10941/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 26;215(4540):1619-22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071580" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Marrow Cells ; Cell Division/radiation effects ; Cells, Cultured ; Granulocytes/physiology ; *Hematopoiesis/radiation effects ; Hematopoietic Stem Cells/*cytology ; Mice ; Spleen/cytology
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  • 20
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    In vivo identification of the transforming gene product of simian sarcoma virus (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-12-10
    Description: Simian sarcoma virus (SSV) deletion mutants were constructed from a molecular clone containing the entire infectious provirus. Transfection analysis of these mutants localized the SSV transforming gene to a small region of the viral genome encompassing its cell-derived sequence (v-sis). Antiserum to a peptide synthesized on the basis of the predicted amino acid sequence of the SSV transforming gene detected a 28,000-dalton protein that was specifically expressed in SSV transformed cells and that corresponded in size to that predicted from the v-sis coding sequence. The v-sis gene product designated p28sis was not a phosphoprotein, nor did it possess detectable protein kinase activity. These findings distinguish p28sis from a number of other retroviral onc proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robbins, K C -- Devare, S G -- Reddy, E P -- Aaronson, S A -- New York, N.Y. -- Science. 1982 Dec 10;218(4577):1131-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6293053" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral ; Base Sequence ; *Cell Transformation, Viral ; *Genes, Viral ; Mice ; Molecular Weight ; *Oncogenes ; Phosphoproteins/genetics ; Protein Kinases/genetics ; Retroviridae/*genetics ; Sarcoma Virus, Woolly Monkey/*genetics ; Viral Proteins/*genetics/immunology
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  • 21
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    Hybridoma technology (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-05-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schwaber, J -- New York, N.Y. -- Science. 1982 May 21;216(4548):798.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7043734" target="_blank"〉PubMed〈/a〉
    Keywords: Allergy and Immunology/*history ; Animals ; History, 20th Century ; Hybridomas/*immunology ; Mice
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  • 22
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    Homeostasis of the antibody response: immunoregulation by NK cells (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-11
    Description: When injected into mice, the synthetic double-stranded polynucleotide poly(inosinic) X poly(cytidylic) acid induces high natural killer (NK) cell activity within 4 to 12 hours. Induction of NK activity in mice immunized 2 or 3 days previously, or the addition of NK cells to cultures immunized in vitro 2 or 3 days previously, promotes early termination of the ongoing primary immunoglobulin M antibody response. A target for NK cells is a population of accessory cells that has interacted with antigen and is necessary for sustaining the antibody response. The inference is strong that NK cells induced normally by immunization also terminate the usual antibody response in vivo by elimination of antigen-exposed accessory cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abruzzo, L V -- Rowley, D A -- 5-T32-CA-09267/CA/NCI NIH HHS/ -- R01-10242/PHS HHS/ -- New York, N.Y. -- Science. 1983 Nov 11;222(4624):581-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6685343" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibody Formation ; Antibody-Producing Cells/immunology ; Cells, Cultured ; Homeostasis ; Killer Cells, Natural/*immunology/radiation effects ; Lymphocyte Cooperation ; Lymphocytes/*immunology ; Mice ; Poly I-C/immunology ; Spleen/immunology
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  • 23
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    Primary murine bone marrow cultures support continuous growth of infectious human trypanosomes (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-22
    Description: The human parasite Trypanosoma brucei gambiense grew continuously at 37 degrees C in primary cultures of murine bone marrow. Cultured parasites remained virulent for mice. Rapid parasite growth coincided with the appearance of adherent adipocyte-epitheloid cell aggregates that also promoted hematopoiesis. This culture system should permit studies of host cell control of trypanosome proliferation, pathogenic effects of trypanosomes on blood cell development, and the relative trypanocidal and marrow suppressive activities of drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balber, A E -- CA 14049/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):421-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836284" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Marrow ; Cells, Cultured ; Culture Media ; Humans ; Mice ; Mice, Inbred BALB C ; Trypanosoma brucei brucei/growth & development ; Trypanosoma brucei gambiense/*growth & development ; Trypanosomiasis, African/parasitology
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  • 24
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    Suicide transport: destruction of neurons by retrograde transport of ricin, abrin, and modeccin (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-05-21
    Description: Certain toxic lectins, including ricin, are retrogradely transported along neuronal processes to the cell body where they inactivate ribosomes, resulting in neuronal death. This process of "suicide transport" suggests a powerful new experimental strategy for solving neurobiological problems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wiley, R G -- Blessing, W W -- Reis, D J -- HL07378/HL/NHLBI NIH HHS/ -- HL18974/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 May 21;216(4548):889-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6177039" target="_blank"〉PubMed〈/a〉
    Keywords: *Abrin ; Animals ; *Axonal Transport ; *Lectins ; Mice ; Nerve Degeneration/drug effects ; Neurons/*drug effects ; *Plant Lectins ; *Plant Proteins ; Retrograde Degeneration ; Ribosome Inactivating Proteins, Type 2 ; *Ricin
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    Noise-induced hearing loss can alter neural coding and increase excitability in the central nervous system (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-06-18
    Description: Responses of auditory neurons in the inferior colliculi of mice were studied longitudinally before and shortly after each animal was exposed to intense noise. Noise exposure caused expected losses in auditory sensitivity, but in 31 percent of the neurons studied, unexpected alterations of temporal patterns of action potentials were observed: certain suprathreshold stimuli that had evoked only transient "onset" responses or inhibition of spontaneous discharges prior to noise exposure came to elicit sustained excitation after exposure. Thus, noise-induced hearing loss can be associated with increases in neural responsivity and alterations of normal neural coding processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willott, J F -- Lu, S M -- New York, N.Y. -- Science. 1982 Jun 18;216(4552):1331-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079767" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Action Potentials ; Animals ; Evoked Potentials, Auditory ; Hearing Loss, Noise-Induced/*physiopathology ; Inferior Colliculi/*physiopathology ; Mice ; Mice, Inbred C57BL ; Neurons/*physiology
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  • 26
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    Recovery of olfactory function after bilateral bulbectomy (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-04-16
    Description: Mice were trained to discriminate between scented and unscented air. After olfactory bulbs were removed, discrimination was lost, but returned with the formation of synaptic connections between regenerated primary olfactory neurons and the cortex of the forebrain. The acquisition of a second olfactory-mediated task by long-term bulbectomized mice and controls was indistinguishable. The results emphasize the plasticity of the nervous system, correlate the presence of neural connections between olfactory mucosa and forebrain with the recovery of olfactory function, suggest that olfactory-mediated memory resides at least in part outside the olfactory bulbs, and demonstrate that the bulbs are not required for the acquisition of olfactory tasks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, J W -- Harding, J W -- NS 13976/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):322-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7063891" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carnosine/physiology ; Central Nervous System/*physiology ; Female ; Memory/physiology ; Mice ; Neuronal Plasticity ; Olfactory Bulb/*physiology ; Olfactory Pathways/*physiology ; Smell/*physiology
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  • 27
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    Cure of mice infected with Trypanosoma rhodesiense by cis-diamminedichloroplatinum (II) and disulfiram rescue (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-07-30
    Description: Mice infected with Trypanosoma rhodesiense were treatment concurrently with cis-diamminedichloroplatinum (II) (DDP), disulfiram, and hydration. Most of the mice (92.5 percent) were cured; inoculation of blood or suspensions of brain or heart from these animals did not produce disease in recipient mice. The dose of DDP needed to eliminate the trypanosomes, 3 milligrams per kilogram of body weight per day for 7 days, was lethally toxic unless the animals received disulfiram orally and subcutaneous injections of physiologic saline, which reduced the acute renal necrosis caused by DDP alone. Some mild to moderate reversible renal damage was noted upon pathologic examination of the treated mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wysor, M S -- Zwelling, L A -- Sanders, J E -- Grenan, M M -- New York, N.Y. -- Science. 1982 Jul 30;217(4558):454-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7201165" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cisplatin/adverse effects ; Disulfiram/*administration & dosage ; Kidney/pathology ; Male ; Mice ; Mice, Inbred ICR ; Necrosis/chemically induced ; Rats ; Sodium Chloride/administration & dosage ; Trypanosoma/drug effects ; Trypanosomiasis, African/pathology/*therapy
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  • 28
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    Independent pathways for secretion of cholesterol and apolipoprotein E by macrophages (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-02-18
    Description: Cholesterol-loaded macrophages secrete cholesterol and apolipoprotein E. The current studies show that this secretion occurs by two independent pathways. In the absence of serum, the cells secrete apolipoprotein E, but not cholesterol. In the presence of monensin (an inhibitor of protein secretion), the cells secrete cholesterol, but little apolipoprotein E. After secretion, apolipoprotein E and cholesterol associate with high-density lipoprotein to form a particle that can deliver cholesterol to the liver by receptor-mediated endocytosis. We conclude that apolipoprotein E does not function to remove cholesterol from macrophages but rather to participate in "reverse cholesterol transport."〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Basu, S K -- Goldstein, J L -- Brown, M S -- HL 20948/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1983 Feb 18;219(4586):871-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823554" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apolipoproteins/*secretion ; Cholesterol/*secretion ; Lipoproteins, HDL/metabolism ; Macrophages/*metabolism ; Mice ; Monensin/pharmacology
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  • 29
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    A polypeptide secreted by transformed cells that modulates human plasminogen activator production (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-08
    Description: A diffusible factor produced and secreted by malignant murine cells was capable of inducing plasminogen activator production by normal diploid human fibroblasts. The factor's ability to induce plasminogen activator was insensitive to treatment with nucleases, but its activity was destroyed by digestion with proteases. It is proposed that such a factor would play a role in malignancy if it would recruit normal cells that were adjacent to transformed cells to produce plasminogen activator which could result in tumor-promoted proteolysis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davies, R L -- Rifkin, D B -- Tepper, R -- Miller, A -- Kucherlapati, R -- CA-16239/CA/NCI NIH HHS/ -- CA-35171/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 8;221(4606):171-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6682999" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cricetinae ; Fibroblasts/drug effects/metabolism ; Humans ; Hybrid Cells/metabolism ; Melanoma/metabolism ; Mice ; Neoplasms, Experimental/*metabolism/secretion ; Peptides/pharmacology/*secretion ; Plasminogen Activators/*biosynthesis ; Rats
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  • 30
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    Scientist sues over genetically impure mice (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-08-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fox, J L -- New York, N.Y. -- Science. 1983 Aug 12;221(4611):625-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6603019" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Animals, Laboratory ; Jurisprudence ; Mice ; *Mice, Inbred BALB C ; Rats ; Rats, Inbred Lew ; Rats, Inbred Strains ; Research ; United States ; Wisconsin
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  • 31
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    Adenosine receptors: autoradiographic evidence for their location on axon terminals of excitatory neurons (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-05-27
    Description: Adenosine receptors were made visible on light microscopy by autoradiography with tritiated cyclohexyladenosine. In the cerebellum, adenosine receptors were absent in Weaver mice, which lack granule cells, and were displaced in Reeler mice, which have displacements of granule cells. Thus, adenosine receptors appear to be located on the axon terminals of excitatory granule cells in the cerebellum. Removal of one eye of a rat depleted adenosine receptors in the contralateral superior colliculus, suggesting that the receptors occur on axon terminals of excitatory projections from retinal ganglion cells. The presence of adenosine receptors on excitatory axon terminals may explain synaptic inhibition by adenosine and the behavioral effects of xanthines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goodman, R R -- Kuhar, M J -- Hester, L -- Snyder, S H -- DA-00266/DA/NIDA NIH HHS/ -- MH-18501/MH/NIMH NIH HHS/ -- NS-16375/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 May 27;220(4600):967-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302841" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/*physiology ; Animals ; Autoradiography ; Axons/*physiology ; Cerebellum/physiology ; Corpus Striatum/physiology ; Hippocampus/physiology ; Mice ; Mice, Neurologic Mutants ; Rats ; Rats, Inbred Strains ; Receptors, Cell Surface/*physiology ; Receptors, Purinergic ; Retinal Ganglion Cells/physiology ; Synaptic Membranes/physiology ; Thalamus/physiology
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  • 32
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    High efficiency DNA-mediated transformation of primate cells (1983)
    American Association for the Advancement of Science (AAAS)
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    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
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  • 33
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    Somatic mutations of immunoglobulin variable genes are restricted to the rearranged V gene (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-10
    Description: An important question concerning the mechanism of somatic mutation of immunoglobulin variable (V) genes is whether it involves all of the numerous V genes in a differentiated B cell, independent of location, or if it is restricted to a particular chromosomal site. Comparison of the sequence of two alleles of a given V gene shows that the mutations are limited to the rearranged V gene, while the same V gene on the other chromosome has not undergone mutation. This indicates that a V gene sequence alone is not sufficient for somatic mutation to take place. The mutation is therefore restricted to the rearranged V gene and consequently does not occur before rearrangement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gorski, J -- Rollini, P -- Mach, B -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1179-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857243" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites, Antibody/*genetics ; Chromosomes/physiology ; DNA/genetics ; *Genes ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Variable Region/*genetics ; Immunoglobulins/genetics ; Lymphocytes/metabolism ; Mice ; *Mutation
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    Isolation of lamellar bodies from neonatal mouse epidermis by selective sequential filtration (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-09-02
    Description: Isolation of epidermal lamellar bodies has presented a challenge because pressures required to homogenize keratinocytes can destroy these organelles and because the lamellar body readily releases its contents during prolonged isolation procedures. In an attempt to isolate lamellar bodies, sheets of intact stratum corneum and stratum granulosum were obtained from neonatal mice with highly purified staphylococcal epidermolytic toxin, disrupted, and passed through a series of filters. The final filtrate was rich in intact lamellar bodies and contained variable amounts of ribosomes and other vesicular structures. Availability of a highly purified lamellar body preparation from postnatal epidermis should help to clarify the role of this organelle in epidermal function. The technique of selective, sequential filtration represents a new approach to cell fractionation that may have wide applications in cell biology and biochemistry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grayson, S -- Johnson-Winegar, A D -- Elias, P M -- AM 19098/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 2;221(4614):962-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879194" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Fractionation/methods ; Epidermis/*ultrastructure ; Filtration ; Mice ; Microscopy, Electron
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    Virus-induced autoimmunity: monoclonal antibodies that react with endocrine tissues (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-15
    Description: Mice infected with reovirus type 1 develop an autoimmune polyendocrine disease. Spleen cells from these mice were fused with myeloma cells and the culture fluids were screened by indirect immunofluorescence for autoantibodies reactive with normal mouse tissues. A large panel of cloned, stable antibody-producing hybridomas has been obtained. Fourteen of the hybridomas make autoantibodies that react with cells in the islets of Langerhans, 24 with cells in the anterior pituitary, 11 with cells in gastric mucosa, and 5 with nuclei. Except for the antibodies to nuclei, the monoclonal autoantibodies are organ-specific. Some, however, show broad cross-species reactivity, recognizing similar antigenic determinants in mouse, rat, pig, and human organs, whereas other recognize determinants only in rodent tissues. Several of the antigens recognized by these monoclonal autoantibodies have been identified as hormones (for example, glucagon, growth hormone, and insulin).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Haspel, M V -- Onodera, T -- Prabhakar, B S -- Horita, M -- Suzuki, H -- Notkins, A L -- New York, N.Y. -- Science. 1983 Apr 15;220(4594):304-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301002" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*immunology ; Autoantibodies/immunology ; Autoimmune Diseases/immunology/*microbiology ; Endocrine Glands/*immunology ; Enzyme-Linked Immunosorbent Assay ; Growth Hormone/immunology ; Humans ; Hybridomas/immunology ; Mice ; Pituitary Gland, Anterior/immunology ; Rats ; Reoviridae Infections/*immunology
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    Contiguity to males in utero affects avoidance responding in adult female mice (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-22
    Description: Female mice that had been situated in utero between two female fetuses displayed higher levels of active avoidance responding in adult life than females that had been located between two male fetuses and males for whom uterine position was without effect. Uterine position, therefore, influences acquired as well as species-typical behaviors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hauser, H -- Gandelman, R -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):437-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836288" target="_blank"〉PubMed〈/a〉
    Keywords: Androgens/physiology ; Animals ; Avoidance Learning/*physiology ; Female ; Fetus/*physiology ; Male ; Mice ; Pregnancy ; Rats ; Sex Factors ; Uterus
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    Simple repeat array in Epstein-Barr virus DNA encodes part of the Epstein-Barr nuclear antigen (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-24
    Description: The size of the Epstein-Barr virus (EBV) nuclear antigen (EBNA) in cells infected with different EBV isolates varies directly with the size of the EBV triplet repeat array, IR3. The isolate with the largest IR3 fragment has approximately 170 more codons than the isolates with the smallest IR3 fragment; it encodes an EBNA which is approximately 17,000 daltons larger than the smallest EBNA. The EBV IR3 encodes part of a 2-kilobase exon of a latently infected cell messenger RNA which must be translated into a repetitive amino acid domain of EBNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hennessy, K -- Heller, M -- van Santen, V -- Kieff, E -- CA 17281/CA/NCI NIH HHS/ -- CA 19264/CA/NCI NIH HHS/ -- GM 07183/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1396-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6304878" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/*genetics ; Base Sequence ; Cell Nucleus/immunology ; DNA, Viral/*genetics ; Epstein-Barr Virus Nuclear Antigens ; Herpesvirus 4, Human/*genetics/immunology ; Humans ; Mice ; RNA, Viral/genetics
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  • 38
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    Radioactive labeling of antibody: a simple and efficient method (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-06
    Description: A simple and efficient method of covalently coupling the strong chelator diethylenetriaminepentaacetic acid to proteins was developed for radiolabeling immunoglobulin G antibodies. After being coupled and labeled with indium-111, a monoclonal antibody to carcinoembryonic antigen retained its ability to bind to its antigen in vitro and in vivo. In nude mice with a human colorectal xenograft, 41 percent of the injected radioactivity became localized in each gram of xenograft at 24 hours compared with 9 percent for control antibody and 19 percent for radioiodinated antibody to carcinoembryonic antigen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hnatowich, D J -- Layne, W W -- Childs, R L -- Lanteigne, D -- Davis, M A -- Griffin, T W -- Doherty, P W -- 1 RO1 CA26968/CA/NCI NIH HHS/ -- 1 RO1 GM26780/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 May 6;220(4597):613-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836304" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies ; Antibodies, Monoclonal/immunology ; Carcinoembryonic Antigen/immunology ; Chromatography, High Pressure Liquid ; Humans ; Immunoglobulin G/immunology ; Isotope Labeling/*methods ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Neoplasm Transplantation ; Pentetic Acid
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    Synthesizing the opioid peptides (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):395-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836282" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aplysia/physiology ; Endorphins/*biosynthesis/genetics ; Humans ; Mice ; Nervous System Physiological Phenomena ; Pituitary Hormones, Anterior/biosynthesis/genetics ; Pro-Opiomelanocortin ; Protein Precursors/biosynthesis/genetics ; RNA, Messenger/metabolism ; Rats
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  • 40
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    Suppressing autoimmunity in mice (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-08-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):843-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6576470" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Autoimmune Diseases/*therapy ; Histocompatibility Antigens Class II/immunology ; Immune Tolerance ; Isoantibodies ; Mice ; Myasthenia Gravis/therapy
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  • 41
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    Selective modification of glutathione metabolism (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-29
    Description: Glutathione, a tripeptide thiol found in virtually all cells, functions in metabolism, transport, and cellular protection. It participates in the reduction of disulfides and other molecules, and conjugates with compounds of exogenous and endogenous origin. It protects cells against the destructive effects of reactive oxygen intermediates and free radicals. Modifications of glutathione metabolism may be achieved by administration of selective enzyme inhibitors, and also by giving compounds that increase glutathione synthesis. Such effects are useful in chemotherapy and radiation therapy and in protecting cells against the toxic effects of drugs, other foreign compounds, and oxygen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meister, A -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):472-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836290" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport ; Free Radicals ; Glutathione/analogs & derivatives/biosynthesis/*metabolism/physiology ; Glutathione Disulfide ; Glutathione Synthase/deficiency/metabolism ; Humans ; Leukemia L1210/metabolism ; Mice ; Oxidation-Reduction ; Peroxides/metabolism ; Pyroglutamate Hydrolase/metabolism ; Trypanosoma brucei brucei/metabolism
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    Drug-induced alterations of cytokeratin organization in cultured epithelial cells (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-04
    Description: The distribution of keratin intermediate filaments, previously considered static in organization and imperturbable by conventional drugs used to alter the structure and organization of the cytoskeleton, can be altered significantly by treatment with colchicine and cytochalasin D. The loss of microfilaments and microtubules converts the keratin cytoskeleton from a branching, even distribution to a series of starlike structures whose filaments are maintained by multiple membrane attachment sites. These findings provide a means for manipulating cytokeratin organization to investigate the role of keratins in cytoskeletal structure and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knapp, L W -- O'Guin, W M -- Sawyer, R H -- New York, N.Y. -- Science. 1983 Feb 4;219(4584):501-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6186022" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Colchicine/*pharmacology ; Cytochalasin D ; Cytochalasins/*pharmacology ; Cytoskeleton/*drug effects ; Epithelium ; *Keratins ; Mice ; Microtubules/drug effects
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    Passive transfer of diabetes in the BB/W rat (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-13
    Description: Severe diabetes with insulitis was produced in young diabetes-prone BB/W rats by passive transfer of concanavalin A-treated spleen cells from BB/W animals with acute diabetes. Spleen cells alone or in combination with lymph node cells were active in transferring disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koevary, S -- Rossini, A -- Stoller, W -- Chick, W -- Williams, R M -- AM-25306/AM/NIADDK NIH HHS/ -- AM-30846/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 May 13;220(4598):727-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836309" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Concanavalin A/pharmacology ; Diabetes Mellitus/etiology/*immunology ; Hyperglycemia/etiology/immunology ; Immunity, Cellular ; Mice ; Mice, Nude ; Rats ; Spleen/cytology/drug effects/transplantation ; Transplantation, Heterologous ; Transplantation, Homologous
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    Genetically obese mice: resistance to metastasis of B16 melanoma and enhanced T-lymphocyte mitogenic responses (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-06-10
    Description: The metastasis of B16 melanoma cells differed significantly in obese (ob/ob) and lean (+/?) female mice of strain C57BL/6J. When the mice were inoculated subcutaneously with melanoma cells at 10 to 11 months of age, the primary tumor grew more slowly in obese than in lean littermates and the frequency of lung metastasis was greatly reduced. When the mice were injected with the cells at 4 to 7 months, the primary tumor grew at the same rate in obese and lean mice, but the obese mice again showed a significantly reduced frequency of lung metastasis. That this effect was related to an enhanced immunocompetence in obese mice was supported by the finding that splenic lymphocytes of ob/ob mice showed three times the proliferative response to the T-cell mitogen concanavalin A compared with the proliferative response of lean control mice. The ob/ob mouse may provide a model for the study of enhanced immunocompetence in obese individuals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thompson, C I -- Kreider, J W -- Black, P L -- Schmidt, T J -- Margules, D L -- New York, N.Y. -- Science. 1983 Jun 10;220(4602):1183-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6602379" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Immunity, Innate ; Lung Neoplasms/immunology ; Male ; Melanoma/*immunology ; Mice ; Mice, Inbred C57BL ; *Mice, Obese ; Neoplasm Metastasis ; Neoplasm Transplantation ; Neoplasms, Experimental/immunology ; Rats ; Receptors, Glucocorticoid/physiology ; T-Lymphocytes/*physiology
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    Monoclonal antibodies reveal the structural basis of antibody diversity (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-18
    Description: Hybridoma technology has made it possible to introduce into continuous culture normal antibody-forming cells and to obtain large amounts of the immunoglobulin produced by each of these cells. Examination of the structure of a number of monoclonal antibodies that react with a single antigen has provided new information on the structural basis of the specificity and affinity of antibodies. Comparisons of families of monoclonal antibodies derived from a single germ line gene revealed the importance of somatic mutation in generating antibody diversity. Monoclonal antibodies that react with variable regions of other monoclonals allow the further dissection and modulation of the immune response. Finally, the continued somatic instability of immunoglobulin genes in cultured antibody-forming cells makes it possible to determine the rate of somatic mutation and to generate mutant monoclonal antibodies that may be more effective serological reagents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Teillaud, J L -- Desaymard, C -- Giusti, A M -- Haseltine, B -- Pollock, R R -- Yelton, D E -- Zack, D J -- Scharff, M D -- 5T32GM7288/GM/NIGMS NIH HHS/ -- AI05231/AI/NIAID NIH HHS/ -- AI10702/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):721-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356353" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/genetics/*immunology ; *Antibody Diversity ; Antibody Specificity ; Genes ; Hybridomas/immunology ; Immunoglobulin Idiotypes/immunology ; Immunoglobulin Variable Region/genetics ; Mice ; Mutation ; Protein Conformation ; Structure-Activity Relationship
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    Bone cell differentiation and growth factors (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-05-13
    Description: Bone morphogenetic protein and bone-derived growth factors are biochemical tools for research on induced cell differentiation and local mechanisms controlling cell proliferation. Bone morphogenetic protein irreversibly induces differentiation of perivascular mesenchymal-type cells into osteoprogenitor cells. Bone-derived growth factors are secreted by and for osteoprogenitor cells and stimulate DNA synthesis. Bone generation and regeneration are attributable to the co-efficiency of bone morphogenetic protein and bone-derived growth factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Urist, M R -- DeLange, R J -- Finerman, G A -- DEO2103-17/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1983 May 13;220(4598):680-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6403986" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Development ; Bone Matrix/drug effects/physiology ; Bone Morphogenetic Proteins ; Bone Neoplasms/physiopathology ; Cattle ; Cell Differentiation ; DNA, Neoplasm/metabolism ; Dogs ; Growth Substances/*physiology ; Guinea Pigs ; Haplorhini ; Humans ; Insulin-Like Growth Factor II ; Mice ; *Osteogenesis ; Osteosarcoma/physiopathology ; Proteins/pharmacology/physiology ; Rabbits ; Rats
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    DNA methylation decreases in aging but not in immortal cells (1983)
    American Association for the Advancement of Science (AAAS)
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    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
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    Leukotrienes: mediators of immediate hypersensitivity reactions and inflammation (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-05-06
    Description: Arachidonic acid plays a central role in a biological control system where such oxygenated derivatives as prostaglandins, thromboxanes, and leukotrienes are mediators. The leukotrienes are formed by transformation of arachidonic acid into an unstable epoxide intermediate, leukotriene A4, which can be converted enzymatically by hydration to leukotriene B4, and by addition of glutathione to leukotriene C4. This last compound is metabolized to leukotrienes D4 and E4 by successive elimination of a gamma-glutamyl residue and glycine. Slow-reacting substance of anaphylaxis consists of leukotrienes C4, D4, and E4. The cysteinyl-containing leukotrienes are potent bronchoconstrictors, increase vascular permeability in postcapillary venules, and stimulate mucus secretion. Leukotriene B4 causes adhesion and chemotactic movement of leukocytes and stimulates aggregation, enzyme release, and generation of superoxide in neutrophils. Leukotrienes C4, D4, and E4, which are released from the lung tissue of asthmatic subjects exposed to specific allergens, seem to play a pathophysiological role in immediate hypersensitivity reactions. These leukotrienes, as well as leukotriene B4, have pro-inflammatory effects.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Samuelsson, B -- New York, N.Y. -- Science. 1983 May 6;220(4597):568-75.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301011" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arachidonic Acids/metabolism/pharmacology/physiology ; Bronchi/drug effects ; Cats ; Chemical Phenomena ; Chemistry ; Cricetinae ; Guinea Pigs ; Haplorhini ; Humans ; Hypersensitivity, Immediate/*physiopathology ; Inflammation/*physiopathology ; Leukocytes/drug effects/metabolism ; Leukotriene B4/pharmacology/*physiology ; Mice ; Microcirculation/drug effects ; Rabbits ; Rats ; SRS-A/*physiology
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    Structure of a mouse submaxillary messenger RNA encoding epidermal growth factor and seven related proteins (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-15
    Description: The structure of the messenger RNA (mRNA) encoding the precursor to mouse submaxillary epidermal growth factor (EGF) was determined from the sequence of a set of overlapping complementary DNA's (cDNA). The mRNA is unexpectedly large, about 4750 nucleotide bases, and predicts the sequence of preproEGF, a protein of 1217 amino acids (133,000 molecular weight). The EGF moiety (53 amino acids) is flanked by polypeptide segments of 976 and 188 amino acids at its amino and carboyxl termini, respectively. The amino terminal segment of the precursor contains seven peptides with sequences that are similar but not identical to EGF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scott, J -- Urdea, M -- Quiroga, M -- Sanchez-Pescador, R -- Fong, N -- Selby, M -- Rutter, W J -- Bell, G I -- 21344/PHS HHS/ -- New York, N.Y. -- Science. 1983 Jul 15;221(4607):236-40.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6602382" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Epidermal Growth Factor/biosynthesis/*genetics ; Humans ; Male ; Mice ; RNA, Messenger/*genetics ; Submandibular Gland/metabolism
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    Atypical pulmonary thrombosis caused by a toxic cyanobacterial peptide (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-24
    Description: Parenteral injection into mice of a toxic pentapeptide isolated from the cyanobacterium Microcystis aeruginosa induced thrombocytopenia, pulmonary thrombi, and hepatic congestion. The lethality of the toxin was unaffected by several anticoagulants. The acute liver damage that follows injection of the toxin has been attributed to direct action on liver cells but may be due to hypoxemia, heart failure, and shock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slatkin, D N -- Stoner, R D -- Adams, W H -- Kycia, J H -- Siegelman, H W -- New York, N.Y. -- Science. 1983 Jun 24;220(4604):1383-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6407109" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bacterial Toxins ; Blood Coagulation Tests ; Cyanobacteria/*metabolism ; Female ; Liver/pathology ; Lung/pathology ; Marine Toxins/*adverse effects ; Mice ; Organ Size/drug effects ; Platelet Count ; Pulmonary Embolism/*chemically induced/microbiology/pathology ; Thrombocytopenia/chemically induced
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    Postnatally induced formation of the corpus callosum in acallosal mice on glia-coated cellulose bridges (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-06-03
    Description: Developing axons of the corpus callosum of mice are guided across the cerebral midline by a slinglike glial structure that forms transiently between the hemispheres. If the "sling" is cut at precallosal stages, the would-be callosal fibers whirl into paired neuromas adjacent to the longitudinal cerebral fissure. In experiments on such surgically acallosal animals, the aberrant commissural axons maintained a potential to regrow across the hemispheres at prenatal and early postnatal stages if they were presented with a properly aligned, glia-covered scaffold spanning the hemispheres.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Silver, J -- Ogawa, M Y -- NS-15731/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jun 3;220(4601):1067-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6844928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Brain/embryology/physiology ; Cellulose ; Corpus Callosum/embryology/*growth & development ; Embryo, Mammalian/physiology ; Fetus/physiology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Neuroglia/physiology
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    Recombination during gene transfer into mouse cells can restore the function of deleted genes (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-01-14
    Description: Two plasmids containing nonoverlapping deletions of the herpes simplex virus thymidine kinase gene were introduced into thymidine kinase-deficient mouse L cells by DNA-mediated gene transfer. Thymidine kinase-producing transformants were generated by a mixture of the two plasmids at a frequency significantly greater than that generated by either plasmid alone. Southern blot analyses demonstrated that functional thymidine kinase genes were generated by homologous recombination between the two deletion mutants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Small, J -- Scangos, G -- New York, N.Y. -- Science. 1983 Jan 14;219(4581):174-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6294829" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cells, Cultured ; Chromosome Deletion ; *Genetic Engineering ; Mice ; Mutation ; *Plasmids ; *Recombination, Genetic ; Simplexvirus ; Thymidine Kinase/*genetics
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    Hemagglutinin variants of reovirus type 3 have altered central nervous system tropism (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-04-29
    Description: Variants of the Dearing strain of reovirus type 3 with antigenically altered hemagglutinin proteins are much less neurovirulent than the parental virus. When injected intracerebrally into mice these variants infected a subset of the brain neurons that were infected by the parental virus. When injected intraperitoneally, the variants did not spread to the brain. These results indicate that minor modifications of the reovirus hemagglutinin dramatically alter the ability of the virus to spread into and injure the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spriggs, D R -- Bronson, R T -- Fields, B N -- NS-16998-01/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 29;220(4596):505-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6301010" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/immunology ; Brain/pathology ; Brain Diseases/*microbiology/pathology ; Hemagglutination Tests ; Mammalian orthoreovirus 3/immunology/*pathogenicity ; Mice ; Reoviridae/*pathogenicity ; Reoviridae Infections/microbiology/pathology
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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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    Bovine x mouse hybridomas that secrete bovine immunoglobulin G1 (1983)
    American Association for the Advancement of Science (AAAS)
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    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
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    Genes of the major histocompatibility complex in mouse and man (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-11-18
    Description: The genes of the major histocompatibility complex code for cell-surface molecules that play an important role in the generation of the immune response. These genes and molecules have been studied intensively over the last five decades by geneticists, biochemists, and immunologists, but only recently has the isolation of the genes by molecular biologists facilitated their precise characterization. Many surprising findings have been made concerning their structure, multiplicity, organization, function, and evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steinmetz, M -- Hood, L -- New York, N.Y. -- Science. 1983 Nov 18;222(4625):727-33.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6356354" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Chromosome Mapping ; Genes ; H-2 Antigens/*genetics ; HLA Antigens/*genetics ; Histocompatibility Antigens/genetics ; Humans ; *Major Histocompatibility Complex ; Mice ; Polymorphism, Genetic ; Protein Conformation
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    Serological visualization of interleukin 2 (1983)
    American Association for the Advancement of Science (AAAS)
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    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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    Human macrophages armed with murine immunoglobulin G2a antibodies to tumors destroy human cancer cells (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-08-26
    Description: Macrophages isolated from tumor-bearing patients as well as cultured human monocytes express Fc receptors that cross-react strongly with murine immunoglobulins of the G2a but only slightly or not at all with the G1, G2b, or G3 subclasses. Such macrophages in the presence of murine immunoglobulin G2a monoclonal antibodies to tumors mediated the killing of tumor cells in vitro. These data suggest that monoclonal antibodies of the G2a subclass may be useful in the immunotherapy of human cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steplewski, Z -- Lubeck, M D -- Koprowski, H -- CA-10815/CA/NCI NIH HHS/ -- CA-21124/CA/NCI NIH HHS/ -- CA-25874/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Aug 26;221(4613):865-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6879183" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*immunology ; Cells, Cultured ; Cytotoxicity, Immunologic ; Humans ; *Immunity, Cellular ; Immunoglobulin G/immunology ; Immunotherapy ; Macrophages/*immunology ; Mice ; Monocytes/immunology ; Neoplasms, Experimental/immunology/therapy ; Receptors, Fc/*immunology ; Species Specificity
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    Biogenesis of ornithine transcarbamylase in spfash mutant mice: two cytoplasmic precursors, one mitochondrial enzyme (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-10-28
    Description: Extracts of liver from hemizygous affected mice with the X-linked spfash mutation have 5 to 10 percent of normal ornithine transcarbamylase (OTC) activity, yet the homogeneous enzyme isolated from these extracts is identical to that in controls. The OTC messenger RNA from mutant livers programs the synthesis of two distinct OTC precursor polypeptides--one normal in size, the other distinctly elongated. Both precursors are imported and proteolytically processed by mitochondria, but only the normal one is assembled into active trimer. This novel phenotype may result from a mutation in the structural gene for OTC leading, primarily, to aberrant splicing of OTC messenger RNA and, secondarily, to formation of a structurally altered precursor whose posttranslational pathway is ultimately futile because its mature mitochondrial form is not capable of assembly and functional expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rosenberg, L E -- Kalousek, F -- Orsulak, M D -- AM 09527/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Oct 28;222(4622):426-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6623083" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Genes ; Liver/enzymology ; Macromolecular Substances ; Mice ; Mice, Mutant Strains/genetics/physiology ; Mitochondria, Liver/enzymology ; Mutation ; Ornithine Carbamoyltransferase/*genetics ; Protein Precursors/genetics ; Protein Processing, Post-Translational ; RNA, Messenger/genetics
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    Deformed whiskers in mice infected with certain exogenous murine leukemia viruses (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-08-05
    Description: Mice infected at birth with replication competent Friend, Moloney, CasBr-M, C2S-M, and 1504-A murine leukemia viruses developed abnormalities of the vibrissae consisting of erratic curvature, shortening, and loss. A number of other virus strains, as well as endogenous AKR-type ecotropic virus and AKR-type, mink cell focus-inducing (MCF) viruses, did not produce these abnormalities. In mice with erythroid and myeloid leukemia, the perivibrissal sinus is the site of extramedullary hematopoiesis, but this did not appear to be the basis of the deformities. Genetic evidence indicated that newly arisen MCF-type recombinant viruses are involved in the pathogenesis of the abnormalities, at least with some of the virus systems studied.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rowe, W P -- N01-AI-22673/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 5;221(4610):562-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6306769" target="_blank"〉PubMed〈/a〉
    Keywords: AKR murine leukemia virus ; Animals ; Friend murine leukemia virus ; Hair/*pathology ; Leukemia Virus, Murine ; Leukemia, Experimental/*pathology ; Mice ; Mice, Inbred AKR ; Mice, Inbred C57BL ; Moloney murine leukemia virus
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    Biotinated probe containing a long-terminal repeat hybridized to a mouse colon tumor and normal tissue (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-12-23
    Description: The cloned complementary DNA pMCT-1, which contains an intracisternal A particle long-terminal repeat, is more highly expressed in a mouse colon tumor than in the normal mouse colon. In situ hybridization of biotin-substituted pMCT-1 to fixed frozen sections shows that expression of pMCT-1 is seen throughout the tumor and is highly heterogeneous on a cellular basis, while expression is undetectable in any cell in the normal colonic mucosa.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Royston, M E -- Augenlicht, L H -- CA 22367/CA/NCI NIH HHS/ -- CA 33383/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1339-41.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6689218" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biotin ; Colon/*analysis ; Colonic Neoplasms/*genetics/pathology ; Dna ; Interphase ; Intestinal Mucosa/analysis ; Male ; Mice ; Mice, Inbred BALB C ; *Nucleic Acid Hybridization ; RNA, Neoplasm/*genetics ; Repetitive Sequences, Nucleic Acid ; *Transcription, Genetic
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    A cancer-associated lactate dehydrogenase is expressed in normal retina (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-07-15
    Description: An unusual isozyme of lactate dehydrogenase, lactate dehydrogenase k, is found in high concentrations in cultured cells transformed by the Kirsten murine sarcoma virus and in many human cancer tissues. In experiments described here high levels of a lactate dehydrogenase k activity were detected in extracts of normal rodent retina. This activity had the same key properties as the human tumor isozyme, namely, a highly cathodic electrophoretic mobility and inhibition of enzymatic activity by oxygen and 5',5'-dipurinenucleoside tetraphosphates. Expression of this activity in the retina may be related to the high aerobic glycolysis characteristic of the retina, a metabolic feature shared with many tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saavedra, R A -- Anderson, G R -- CA32022/CA/NCI NIH HHS/ -- GM28098/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Jul 15;221(4607):291-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857286" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Transformation, Neoplastic/metabolism ; Chickens ; Electrophoresis ; Glycolysis ; Guinea Pigs ; Humans ; Isoenzymes ; L-Lactate Dehydrogenase/antagonists & inhibitors/*metabolism ; Mice ; Mice, Inbred Strains ; Neoplasms/*enzymology ; Oxygen/pharmacology ; Rats ; Retina/*enzymology
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    Human endometrial adenocarcinoma transplanted into nude mice: growth regulation by estradiol (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-01-07
    Description: A model for studying the growth of primary tumors of human endometrium and its regulation by 17 beta-estradiol has been developed in which ovariectomized nude mice are used as recipients. The receptors for sex steroids are maintained during serial transplantation of the tumor in this system. Although the rate of growth of receptor-negative endometrial tumors transplanted into ovariectomized nude mice is unaffected by the sustained presence or absence of estradiol, the growth of receptor-positive tumors is significantly increased by estradiol. Receptor-positive tumors treated with estradiol produced elevated concentrations of progesterone receptor. That the progesterone receptor is functional in this tumor is evident from the induction of estradiol 17 beta-dehydrogenase activity upon progestin administration. These findings are consistent with receptor-mediated regulation of growth of endometrial carcinoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Satyaswaroop, P G -- Zaino, R J -- Mortel, R -- New York, N.Y. -- Science. 1983 Jan 7;219(4580):58-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6849115" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/metabolism/*pathology ; Animals ; Castration ; Estradiol/*physiology ; Female ; Mice ; Mice, Nude ; Neoplasm Transplantation ; Receptors, Estrogen/metabolism ; Receptors, Progesterone/metabolism ; Transplantation, Heterologous ; Uterine Neoplasms/metabolism/*pathology
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    Altered activity patterns during development reduce neural tuning (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-09-16
    Description: Neonatal mice were reared in an acoustic environment that repetitively entrained activity in a large proportion of primary auditory afferents during the period when the frequency tuning of auditory neurons normally develops. The tuning curves obtained from these mice were significantly broader than those of normally reared mice of the same age. This suggests that the normal frequency tuning of neurons was prevented or delayed by synchronizing the pattern of activity imposed on the auditory pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanes, D H -- Constantine-Paton, M -- 5T32GM07312/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 Sep 16;221(4616):1183-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6612332" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Animals ; Animals, Newborn ; Auditory Pathways/*physiology ; Evoked Potentials, Auditory ; Inferior Colliculi/physiology ; Mice ; Mice, Inbred C57BL ; Models, Neurological
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    Tumor cells secrete a vascular permeability factor that promotes accumulation of ascites fluid (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-25
    Description: Tumor ascites fluids from guinea pigs, hamsters, and mice contain activity that rapidly increases microvascular permeability. Similar activity is also secreted by these tumor cells and a variety of other tumor cell lines in vitro. The permeability-increasing activity purified from either the culture medium or ascites fluid of one tumor, the guinea pig line 10 hepatocarcinoma, is a 34,000- to 42,000-dalton protein distinct from other known permeability factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Senger, D R -- Galli, S J -- Dvorak, A M -- Perruzzi, C A -- Harvey, V S -- Dvorak, H F -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):983-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6823562" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ascites/physiopathology ; Ascitic Fluid/physiology ; *Capillary Permeability ; Cricetinae ; Guinea Pigs ; Mice ; Neoplasms, Experimental/*physiopathology
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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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    Thrombin stimulation of guanosine 3',5'-monophosphate formation in murine neuroblastoma cells (clone N1E-115) (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-08-05
    Description: Thrombin, the central regulatory enzyme in coagulation, when incubated in nanomolar concentrations with murine neuroblastoma cells produced a rapid and marked increase in tritiated guanosine 3',5'-monophosphate (cyclic GMP) formation that was blocked by hirudin and competitively antagonized by dansylarginine N-(3-ethyl-1,5-pentanediyl)amide. Diisopropylphosphofluoridate-inactivated thrombin as well as the serine protease trypsin were markedly less potent and less effective than alpha-thrombin in producing this effect. Thrombin-stimulated cyclic GMP formation was inhibited by mepacrine and nordihydroguaiaretic acid but unaffected by indomethacin, suggesting that lipoxygenase metabolites of arachidonic acid are involved in the response. These results suggest that a thrombin-like protease in the brain may be involved with the function of neurons or that thrombin interactions with nerve cells, such as those following cerebral hemorrhage or other trauma of the central nervous system, may be important in the subsequent neuropathology.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Snider, R M -- Richelson, E -- HL07111/HL/NHLBI NIH HHS/ -- MH27692/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1983 Aug 5;221(4610):566-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6306770" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arginine/analogs & derivatives/pharmacology ; Blood Platelets/physiology ; Catechols/pharmacology ; Clone Cells ; Cyclic GMP/analysis/*biosynthesis ; *Dansyl Compounds ; Hirudins/pharmacology ; Indomethacin/pharmacology ; Masoprocol ; Mice ; Neuroblastoma/analysis/*metabolism ; Thrombin/analysis/*pharmacology ; Trypsin/analysis
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    X chromosome-linked transmission and expression of retroviral genomes microinjected into mouse zygotes (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-08-19
    Description: A genomic clone consisting of the Moloney leukemia proviral genome with moderately repetitive mouse sequences was microinjected into the pronucleus of a mouse zygote. An animal was derived that carried multiple copies of proviral DNA in a tandem array. No evidence for homologous recombination was obtained. The viral genome was expressed in this animal and was transmitted as a single unit to its offspring. Subsequent breeding studies revealed that the proviral DNA had integrated on an X chromosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stewart, C -- Harbers, K -- Jahner, D -- Jaenisch, R -- New York, N.Y. -- Science. 1983 Aug 19;221(4612):760-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6683871" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Nucleus/physiology ; Female ; Gene Expression Regulation ; Genes, Viral ; Mice ; Microinjections ; Moloney murine leukemia virus/*genetics ; Recombination, Genetic ; Sex Chromosomes/*physiology ; X Chromosome/*physiology
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    Stable antibody-producing murine hybridomas (1983)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1983-03-11
    Description: A method is described for obtaining antibody-producing hybridomas that are preferentially retained in cultures of fused mouse spleen and myeloma cells. Hybridomas are produced by fusing mouse myeloma cells that are deficient in adenosine phosphoribosyltransferase (APRT) with mouse spleen cells containing Robertsonian 8.12 translocation chromosomes. The cell fusion mixtures are exposed to a culture medium that can be utilized only by APRT-positive cells, which results in the elimination of both unfused APRT-deficient myeloma cells and non-antibody-producing APRT-deficient hybridomas that arise by segregation of the 8.12 translocation chromosomes containing the APRT genes and the active heavy chain immunoglobulin gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taggart, R T -- Samloff, I M -- 1 P01 CA 16042/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Mar 11;219(4589):1228-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6402815" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Phosphoribosyltransferase/deficiency ; Animals ; Dosage Compensation, Genetic ; Hybridomas/*physiology ; Immunoglobulin Heavy Chains/genetics ; Mice ; Mice, Mutant Strains ; Selection, Genetic ; Translocation, Genetic
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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)
    Details
    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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    Inhibition by alcohols of the localization of radioactive nitrosonornicotine in sites of tumor formation (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-07-01
    Description: Oral administration of ethanol, n-butanol, or t-butanol to mice 20 minutes before injection of carbon-14-labeled nitrosonornicotine inhibited the localization of radioactivity in bronchial and salivary duct epithelium and in the liver. Localization of radioactivity in the nasal epithelium and esophagus was not significantly reduced. These alcohols therefore may selectively inhibit tumor formation in three of the five sites where this carcinogen typically acts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waddell, W J -- Marlowe, C -- New York, N.Y. -- Science. 1983 Jul 1;221(4605):51-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6857261" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Butanol ; Alcohol Drinking ; Alcohols/*pharmacology ; Animals ; Butanols/pharmacology ; Carcinogens/*antagonists & inhibitors ; Ethanol/pharmacology ; Humans ; Liver/drug effects ; Lung/drug effects ; Male ; Mice ; Mice, Inbred C57BL ; Neoplasms/*chemically induced ; Nitrosamines/*pharmacology ; Salivary Glands/drug effects ; Smoking ; tert-Butyl Alcohol
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    Proton nuclear magnetic resonance of intact Friend leukemia cells: phosphorylcholine increase during differentiation (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-06-18
    Description: Proton nuclear magnetic resonance of intact Friend leukemia cells was used to analyze their erythroid-like differentiation. The technique, which requires only 10(3) to 10(9) cells and approximately 2 minutes for acquisition of each spectrum, demonstrated the occurrence of many signal changes during differentiation. With cell extracts, 64 signals were assigned to 12 amino acids and 19 other intermediary metabolites, and a dramatic signal change was attributed to a fourfold increase in cytoplasmic phosphorylcholines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Agris, P F -- Campbell, I D -- 1-F33-GM07826/GM/NIGMS NIH HHS/ -- 1-FOG-TW00440/TW/FIC NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 18;216(4552):1325-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079765" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Choline/*analogs & derivatives ; Kinetics ; Leukemia, Experimental/*physiopathology ; Magnetic Resonance Spectroscopy ; Mice ; Phosphorylcholine/*analysis
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    Anomalous patterns in cultured cell monolayers (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-27
    Description: Gridlike patterns of differing cell density were observed in evenly seeded cell monolayers. Such patterns were obtained in five of six cell lines tested, suggesting widespread occurrence. The mechanism appears to involve small, transient temperature changes related to incubator tray structure. The very short time course of appearance of the patterns implicates attachment rather than growth as the critically affected factor. Impaired adhesion or directed sedimentation resulting from thermally induced microcurrents in the medium are the two most likely mechanisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adler, E M -- Flunk, L J -- Mullin, J M -- Kleinzeller, A -- 2 T32 GM07229-07/GM/NIGMS NIH HHS/ -- AM 12619-13/AM/NIADDK NIH HHS/ -- HL07027-07/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 27;217(4562):851-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7048529" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Cell Count ; Cell Line ; Cells, Cultured/*cytology ; Cricetinae ; *Cytological Techniques ; Dogs ; Mice ; Temperature
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    New method for detecting cellular transforming genes (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-12-10
    Description: Tumor induction in athymic nude mice can be used to detect dominant transforming genes in cellular DNA. Mouse NIH 3T3 cells freshly transfected with either cloned Moloney sarcoma proviral DNA or cellular DNA's derived from virally transformed cells induced tumors when injected into athymic nu/nu mice. Tumors were also induced by cells transfected with DNA from two tumor-derived and one chemically transformed human cell lines. The mouse tumors induced by human cell line DNA's contained human DNA sequences, and DNA derived from these tumors was capable of inducing both tumors and foci on subsequent transfection. Tumor induction in nude mice represents a useful new method for the detection and selection of cells transformed by cellular oncogenes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blair, D G -- Cooper, C S -- Oskarsson, M K -- Eader, L A -- Vande Woude, G F -- New York, N.Y. -- Science. 1982 Dec 10;218(4577):1122-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6293052" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Transformation, Viral ; DNA, Neoplasm/*genetics ; DNA, Viral/genetics ; Mice ; Mice, Nude/*physiology ; Moloney murine leukemia virus/genetics ; Neoplasms, Experimental/*genetics ; *Oncogenes ; Sarcoma Viruses, Murine/genetics
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    Neurotoxin-specific immunoglobulins accelerate dissociation of the neurotoxin-acetylcholine receptor complex (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-08-20
    Description: Toxin isolated from cobra venom and labeled with tritium was incubated with membranes rich in acetylcholine receptors. The amount of toxin bound to the receptors was determined and the kinetics of dissociation of the receptor-toxin complex was followed. Addition of an excess of horse antiserum to the venom resulted in a significant acceleration of the dissociation reaction. Similarly, a monoclonal antibody against the toxin accelerated dissociation of the receptor-toxin complex. The results indicate that specific antibody binding destabilizes the toxin-receptor complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boulain, J C -- Menez, A -- New York, N.Y. -- Science. 1982 Aug 20;217(4561):732-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7100919" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/physiology ; Cobra Neurotoxin Proteins/immunology/*metabolism ; Cobra Venoms/immunology/*metabolism ; Immunoglobulin Fab Fragments/physiology ; Immunoglobulins/*physiology ; In Vitro Techniques ; Mice ; Radioligand Assay ; Receptors, Cholinergic/*metabolism
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    Interference with dimethylhydrazine induction of colon tumors in mice by epsilon-aminocaproic acid (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-05-28
    Description: The antifibrinolytic agent epsilon-aminocaproic acid given in the drinking water to Swiss ICR/Ha mice significantly counteracted the appearance of colorectal tumors induced by 21 weekly infections of 1,2-dimethylhydrazine. The drug affected both the number and the location of the tumors and, in some animals, altogether prevented their appearance. The low concentrations of epsilon-aminocaproic acid in the plasma of four control mice given the agent labeled with carbon-14 for 3 days suggest that the effect may depend not on inhibition of plasminogen activator activity, but on interference with the binding of some substance to the strong lysine binding site of plasminogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Corasanti, J G -- Hobika, G H -- Markus, G -- New York, N.Y. -- Science. 1982 May 28;216(4549):1020-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6805074" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/*chemically induced ; Aminocaproates/*pharmacology ; Animals ; Colonic Neoplasms/*chemically induced ; Dimethylhydrazines/*antagonists & inhibitors ; Female ; Male ; Methylhydrazines/*antagonists & inhibitors ; Mice ; Neoplasms, Experimental/chemically induced ; Plasminogen/metabolism ; Plasminogen Activators/antagonists & inhibitors ; Plasminogen Inactivators ; Protein Binding
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    Cellular transforming genes (1982)
    American Association for the Advancement of Science (AAAS)
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    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
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    Anticonvulsant action of excitatory amino acid antagonists (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-05-21
    Description: Compounds that antagonize neuronal excitation induced by dicarboxylic amino acids were tested in two animal models of epilepsy, namely sound-induced seizures in DBA/2 mice and threshold pentylenetetrazol seizures in Swiss mice. Sound-induced seizures could be prevented by intracerebroventricular injection of compounds that block excitation due to N-methyl-D-aspartic acid. The most potent such compound, 2-amino-7-phosphonoheptanoic acid, was anticonvulsant in both test systems when given either intraperitoneally or intracerebroventricularly. Specific antagonists of excitation that is caused by amino acids provide a new class of anticonvulsant agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Croucher, M J -- Collins, J F -- Meldrum, B S -- New York, N.Y. -- Science. 1982 May 21;216(4548):899-901.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079744" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids, Dicarboxylic/*antagonists & inhibitors ; Aminobutyrates/*pharmacology ; Animals ; *Anticonvulsants ; Disease Models, Animal ; Excitatory Amino Acid Antagonists ; Glutamates/pharmacology ; Mice ; Mice, Inbred DBA ; Organophosphorus Compounds/*pharmacology
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    Cannabinoids in male mice: effects on fertility and spermatogenesis (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dalterio, S -- Badr, F -- Bartke, A -- Mayfield, D -- DA 02342/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):315-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6801767" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cannabinoids/*pharmacology ; Chromosome Aberrations/*chemically induced ; Chromosome Disorders ; Follicle Stimulating Hormone/blood ; Infertility, Male/*chemically induced/genetics ; Luteinizing Hormone/blood ; Male ; Mice ; Spermatogenesis/*drug effects ; Testosterone/blood
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    "Myeloma" (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-07-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dunn, T B -- New York, N.Y. -- Science. 1982 Jul 9;217(4555):107.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089546" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Hybridomas ; Mice ; *Multiple Myeloma ; Plasmacytoma ; *Terminology as Topic
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    Mus poschiavinus Y chromosome in the C57BL/6J murine genome causes sex reversal (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eicher, E M -- Washburn, L L -- Whitney, J B 3rd -- Morrow, K E -- AM 17947/AM/NIADDK NIH HHS/ -- GM 20919/GM/NIGMS NIH HHS/ -- RR 01183/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 6;217(4559):535-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089579" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crosses, Genetic ; Disorders of Sex Development/genetics ; Female ; Fertility ; Gonadal Dysgenesis/genetics ; Male ; Mice ; Mice, Inbred C57BL/genetics ; Muridae/*genetics ; Ovary/embryology ; Phenotype ; *Sex Chromosomes ; *Sex Determination Analysis ; Testis/abnormalities/embryology ; *Y Chromosome
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 82
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    Prevention of allograft rejection by immunization with donor blood depleted of Ia-bearing cells (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-09
    Description: Strain-specific unresponsiveness was induced in adult mice by immunizing them with donor blood treated with antiserum to Ia (I region-associated antigens) prior to the transplantation of islets of Langerhans. This regimen alone produced greater than 100-day survival of islet allografts transplanted across a major histocompatibility barrier.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Faustman, D -- Lacy, P -- Davie, J -- Hauptfeld, V -- AI-12734/AI/NIAID NIH HHS/ -- AM-01226/AM/NIADDK NIH HHS/ -- GM-07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 9;217(4555):157-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6806903" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Complement System Proteins ; Diabetes Mellitus, Experimental/immunology ; Erythrocytes/immunology ; Graft Survival ; Histocompatibility Antigens Class II/*immunology ; Immune Sera ; Immunization ; Immunosuppression ; *Islets of Langerhans Transplantation ; Lymphocytes/immunology ; Male ; Mice ; Mice, Inbred C57BL ; Transplantation, Homologous
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 83
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    Suppressor T lymphocytes control the development of primary skin cancers in ultraviolet-irradiated mice (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-06-04
    Description: Exposure of mice to ultraviolet radiation results in the development of suppressor T lymphocytes in lymphoid organs, followed by the appearance of primary skin cancers. The presence or absence of these suppressor lymphocytes determines whether or not primary cancers will develop in the ultraviolet-irradiated skin. This demonstrates the importance of immunological regulatory pathways in carcinogenesis and provides an example of immunological surveillance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fisher, M S -- Kripke, M L -- N01-CO-75380/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 4;216(4550):1133-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6210958" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Immune Tolerance ; Mice ; Neoplasms, Experimental/immunology ; Neoplasms, Radiation-Induced/*immunology ; Skin Neoplasms/etiology/*immunology ; T-Lymphocytes/*immunology ; T-Lymphocytes, Regulatory/*immunology ; Ultraviolet Rays
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 84
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    Biological diversity in metastatic neoplasms: origins and implications (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-10
    Description: Whether neoplasms are unicellular or multicellular in their origin, the process of tumor evolution and progression can rapidly generate biological diversity. Metastases result from the survival and proliferation of specialized subpopulations of cells within the parent tumor. Metastases may have a clonal origin and different metastases may develop from different progenitor cells. However, as with the primary tumor, the origin of metastases is unimportant since the process of tumor evolution and progression can generate biological diversity within and among different metastatic foci.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fidler, I J -- Hart, I R -- N01-CO-75380/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 10;217(4564):998-1003.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7112116" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Transformation, Neoplastic/pathology ; Clone Cells ; Humans ; Immunity ; Melanoma/genetics/pathology ; Mice ; Mice, Inbred Strains ; Mutation ; Neoplasm Metastasis/*pathology ; Neoplasms, Experimental/pathology ; Phenotype ; Skin Neoplasms/genetics/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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  • 85
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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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 86
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    Uninvolved skin from psoriatic patients develops signs of involved psoriatic skin after being grafted onto nude mice (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-05
    Description: Clinically involved psoriatic epidermis maintains its histological appearance, increased labeling index, and increased level of plasminogen activator after being grafted onto athymic nude mice. Uninvolved psoriatic epidermis develops increases in plasminogen activator activity after being grafted onto athymic nude mice; this is accompanied by an increased labeling index. Thus, psoriatic skin can develop markers of psoriasis independent of the host.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fraki, J E -- Briggaman, R A -- Lazarus, G S -- 5 R01 AM10546/AM/NIADDK NIH HHS/ -- 5F05-TW-02774-02/TW/FIC NIH HHS/ -- R01 AM19067/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Feb 5;215(4533):685-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7036342" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Division ; Disease Models, Animal ; Humans ; Mice ; Mice, Nude ; Plasminogen Activators/*metabolism ; Psoriasis/enzymology/*pathology ; Skin/pathology ; Skin Transplantation
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  • 87
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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
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  • 88
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    Intracellular pH of mitogen-stimulated lymphocytes (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-05-28
    Description: Mitogenic stimulation of mouse lymphocytes results in two sequential intracellular alkalinizations. The first shift of intracellular pH from 7.18 to 7.35 coincides with early biochemical events following mitogenic stimulation. The second alkalinization begins 12 hours after stimulation and rises in parallel with the rate of thymidine incorporation. The results suggest that intracellular alkalinization following stimulation may play a key role in the enhancement of cellular activation and mitogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gerson, D F -- Kiefer, H -- Eufe, W -- New York, N.Y. -- Science. 1982 May 28;216(4549):1009-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6281887" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/physiology ; DNA Replication ; *Hydrogen-Ion Concentration ; *Lymphocyte Activation ; Lymphocytes/drug effects/*physiology ; Mice ; Mitogens/pharmacology ; Phosphotransferases/metabolism ; Spleen ; T-Lymphocytes/physiology ; Time Factors
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  • 89
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    Histocompatibility and isoenzyme differences in commercially supplied "BALB/c" mice (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-07-23
    Description: BALB/c mice obtained commercially were found to differ significantly from the standard phenotype of BALB/c strain mice. Isoenzyme tests and H-2 haplotype analyses indicated that the majority of mice from two of the three sources tested appeared mixed, frequently heterozygous, and did not consistently express either the expected H-2 or glucose phosphate isomerase type.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kahan, B -- Auerbach, R -- Alter, B J -- Bach, F H -- New York, N.Y. -- Science. 1982 Jul 23;217(4557):379-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6953593" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cytotoxicity Tests, Immunologic ; Female ; Flow Cytometry ; Genetic Markers ; Glucose-6-Phosphate Isomerase/genetics ; H-2 Antigens/genetics/immunology ; Inbreeding ; Lymphocytes/immunology ; Male ; Mice ; Mice, Inbred BALB C/*genetics ; Phenotype
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 90
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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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  • 91
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    Chromosomal assignment of the endogenous proto-oncogene C-abl (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-12-24
    Description: Abelson murine leukemia virus (A-MuLV) is a replication-defective retrovirus that transforms lymphocytes of the B-cell lineage. This virus is a recombinant between the parental Moloney murine leukemia virus and a cellular gene termed C-abl. By analysis of a series of mouse x Chinese hamster hybrid celllines containing various mouse chromosomes, we have mapped the C-abl gene to mouse chromosome 2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goff, S P -- D'Eustachio, P -- Ruddle, F H -- Baltimore, D -- CA-14051/CA/NCI NIH HHS/ -- GM-09966/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Dec 24;218(4579):1317-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6293057" target="_blank"〉PubMed〈/a〉
    Keywords: Abelson murine leukemia virus/*genetics ; Animals ; B-Lymphocytes ; Cell Transformation, Viral ; Chromosome Mapping ; Cricetinae ; Cricetulus ; Hybrid Cells/analysis ; Leukemia Virus, Murine/*genetics ; Mice ; *Oncogenes
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  • 92
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    Myocardial injury: quantitation by cell sorting initiated with antimyosin fluorescent spheres (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-09-10
    Description: Spheres coated with antibodies specific for myosin were used to detect myocardial cell membrane disruption by scanning electron microscopy. Injury in a population of cultured myocytes as then followed and measured by fluorescence-activated cell sorting. This approach provides a unique method for quantitating the evolution of myocardial injury and potentially for assessing the efficacy of interventions aimed at myocardial protection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Khaw, B A -- Scott, J -- Fallon, J T -- Cahill, S L -- Haber, E -- Homcy, C -- HL-17665/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Sep 10;217(4564):1050-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7051286" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/ultrastructure ; Cell Separation ; Coronary Disease/pathology ; Culture Media ; Flow Cytometry ; Fluorescent Antibody Technique ; Glucose/pharmacology ; Mice ; Microscopy, Electron, Scanning ; Myocardium/*pathology ; Myosins/*analysis/immunology
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  • 93
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    Differential breakdown of phylogenetically diverse ribosomal RNA's inserted via liposomes into mammalian cells (1982)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1982-07-02
    Description: Liposomes were used to deliver ribosomal RNA's from the different organisms into cultivated mouse plasmacytoma cells. Ribosomal RNA from Escherichia coli was degraded intracellularly within 1 hour, whereas mouse and yeast ribosomal RNA's were degraded more slowly. This indicates that cells can discriminated between different ribosomal RNA's.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lavelle, D -- Ostro, M J -- Giacomoni, D -- GM 27935/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 2;217(4554):59-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6178157" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Escherichia coli ; Kinetics ; *Liposomes ; Mice ; Molecular Weight ; Neoplasms, Experimental/metabolism ; Plasmacytoma/*metabolism ; RNA, Bacterial/metabolism ; RNA, Ribosomal/*metabolism ; Saccharomyces cerevisiae ; Species Specificity
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  • 94
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    NIH 3T3 cell line (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-10-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Littlefield, J W -- New York, N.Y. -- Science. 1982 Oct 15;218(4569):214-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6896932" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogens ; *Cell Line ; Mice ; Mice, Inbred BALB C ; National Institutes of Health (U.S.) ; United States
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  • 95
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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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  • 96
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    The case of the misplaced gene (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-12-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1982 Dec 3;218(4576):983-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7134986" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/genetics ; Humans ; Mice ; Neoplasms/*genetics ; *Oncogenes ; Translocation, Genetic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 97
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    Cloning the genes of the MHC (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-04-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J L -- New York, N.Y. -- Science. 1982 Apr 23;216(4544):400-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071587" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cloning, Molecular/*methods ; Genes ; Humans ; *Major Histocompatibility Complex ; Mice
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  • 98
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    DNA sequence of the gene encoding the E alpha Ia polypeptide of the BALB/c mouse (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-12-17
    Description: A 3.4-kilobase DNA fragment containing the gene coding for the E alpha chain of an Ia (I region-associated) antigen from the BALB/c mouse has been sequenced. It contains at least three exons, which correlate with the major structural domains of the E alpha chain-the two external domains alpha 1 and alpha 2, and the transmembrane-cytoplasmic domain. The coding sequence of the mouse E alpha gene shows striking homology to its counterpart at the DNA and protein levels. The translated alpha 2 exon demonstrates significant similarity to beta 2-microglobulin, to immunoglobulin constant region domains, and to certain domains of transplantation antigens. These observations and those of others suggest that the Ia antigen, transplantation antigen, and immunoglobulin gene families share a common ancestor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McNicholas, J -- Steinmetz, M -- Hunkapiller, T -- Jones, P -- Hood, L -- New York, N.Y. -- Science. 1982 Dec 17;218(4578):1229-32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6815800" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biological Evolution ; Genes ; *Genes, MHC Class II ; Macromolecular Substances ; Mice ; Mice, Inbred BALB C/*genetics ; beta 2-Microglobulin/genetics
    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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    Opioid-like analgesia in defeated mice (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-03-19
    Description: Mice exposed to repeated attacks by other mice showed decreased nociception in response to radiant heat focused on their tails. This form of analgesia was blocked by centrally acting opiate antagonists and was not observed in morphine-tolerant mice; furthermore, mice repeatedly subjected to defeat. Mice of the CXBK strain, which respond weakly to morphine, displayed only moderate analgesia following defeat. These findings suggest that endogenous opioid-mediated analgesic mechanisms are readily activated by situations involving biologically significant forms of stress, such as defeat.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miczek, K A -- Thompson, M L -- Shuster, L -- AA-05122/AA/NIAAA NIH HHS/ -- DA-02632/DA/NIDA NIH HHS/ -- DA-05054/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 19;215(4539):1520-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7199758" target="_blank"〉PubMed〈/a〉
    Keywords: Aggression/physiology ; Animals ; Behavior, Animal/physiology ; Endorphins/*physiology ; Humans ; Mice ; Pain/*physiopathology
    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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    DNA sequence of a gene encoding a BALB/c mouse Ld transplantation antigen (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-02-05
    Description: The sequence of a gene, denoted 27.5, encoding a transplantation antigen for the BALB/c mouse has been determined. Gene transfer studies and comparison of the translated sequence with the partial amino acid sequence of the Ld transplantation antigen establish that gene 27.5 encodes an Ld polypeptide. A comparison of the gene 27.5 sequence with several complementary DNA sequences suggests that the BALB/c mouse may contain a number of closely related L-like genes. Gene 27.5 has eight exons that correlate with the structural domains of the transplantation antigen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moore, K W -- Sher, B T -- Sun, Y H -- Eakle, K A -- Hood, L -- 1 T32 GM07616/GM/NIGMS NIH HHS/ -- GM 06965/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1982 Feb 5;215(4533):679-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7058332" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular/methods ; Genes ; H-2 Antigens/*genetics ; *Major Histocompatibility Complex ; Mice ; Mice, Inbred BALB C/*genetics ; Plasmids ; Repetitive Sequences, Nucleic Acid
    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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