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  • Mice
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  • 1985-1989  (37)
  • 1985  (37)
  • 1
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    T-cell receptor beta-chain expression: dependence on relatively few variable region genes (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-08-09
    Description: Fifteen independently isolated complementary DNA clones that contain T-cell receptor (TCR) V beta genes were sequenced and found to represent 11 different V beta genes. When compared with known sequences, 14 different V beta genes could be defined from a total of 25 complementary DNA's; 11 clones therefore involved repeated usage of previously identified V beta's. Based on these data, we calculate a maximum likelihood estimate of the number of expressed germline V beta genes to be 18 with an upper 95 percent confidence bound of 30 genes. Southern blot analysis has shown that most of these genes belong to single element subfamilies which show very limited interstrain polymorphism. The TCR beta-chain diversity appears to be generated from a limited V beta gene pool primarily by extensive variability at the variable-diversity-joining (V-D-J) junctional site, with no evidence for the involvement of somatic hypermutation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Behlke, M A -- Spinella, D G -- Chou, H S -- Sha, W -- Hartl, D L -- Loh, D Y -- GM07200/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 9;229(4713):566-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3875151" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Base Sequence ; Chromosome Mapping ; Cloning, Molecular ; Dna ; Gene Pool ; *Genetic Variation ; Humans ; Hybridomas ; Immunoglobulin Variable Region/genetics ; Mice ; Mice, Inbred BALB C/genetics ; Mice, Inbred C57BL/genetics ; Mice, Inbred Strains/genetics ; Receptors, Antigen, T-Cell/*genetics ; Species Specificity ; Spleen ; T-Lymphocytes ; Thymus Gland
    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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  • 2
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    Effects on Trichinella spiralis of host responses to purified antigens (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-02-22
    Description: Purification of two antigens (48-kilodalton polypeptide and a group with major subunits of 50 and 55 kilodaltons) from the infective larvae of the parasitic nematode Trichinella spiralis was recently reported. Immunization of mice with either of these antigens induces strong resistance to a subsequent challenge infection. In the study reported here the mechanism of this resistance was investigated by monitoring the parasite's life cycle in mice immunized with the antigens. Immunized mice were able to expel intestinal adult worms and to inhibit the fecundity of adult female worms at an accelerated rate compared to control mice. Accelerated expulsion and inhibition of fecundity may account entirely for the level of resistance induced by immunization. Although the effects of the immune response apparently are exerted on adult worms, the target antigens are expressed only by developing larvae. This suggests that immune effector mechanisms act on intestinal larvae in such a way that they develop into defective adults.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Silberstein, D S -- Despommier, D D -- New York, N.Y. -- Science. 1985 Feb 22;227(4689):948-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3969571" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Helminth/immunology/*isolation & purification ; Female ; Immunization ; Larva ; Male ; Mice ; Trichinella/growth & development/*immunology ; Trichinellosis/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Ethanol withdrawal in mice precipitated and exacerbated by hyperbaric exposure (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-08-23
    Description: Mice were fed an ethanol-containing liquid diet for 9 days. On removal of the diet, exposure to 12 atmospheres absolute of a mixture of helium and oxygen precipitated earlier withdrawal, increased withdrawal scores for the first 6 hours, and increased the peak withdrawal intensity compared to dependent animals exposed to control conditions. The enhanced withdrawal did not appear to reflect alterations in ethanol elimination, oxygen or helium partial pressures, body temperature, or general excitability. These results extend to chronically treated animals the evidence that hyperbaric exposure antagonizes the membrane actions of ethanol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alkana, R L -- Finn, D A -- Galleisky, G G -- Syapin, P J -- Malcolm, R D -- R01AA03972/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 1985 Aug 23;229(4715):772-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4040651" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Atmospheric Pressure ; Cell Membrane/drug effects/physiology ; Ethanol/*adverse effects/pharmacology ; Humans ; Male ; Mice ; Substance Withdrawal Syndrome/*physiopathology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Mammalian and yeast ras gene products: biological function in their heterologous systems (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-04-12
    Description: Activated versions of ras genes have been found in various types of malignant tumors. The normal versions of these genes are found in organisms as diverse as mammals and yeasts. Yeast cells that lack their functional ras genes, RASSC-1 and RASSC-2, are ordinarily nonviable. They have now been shown to remain viable if they carry a mammalian rasH gene. In addition, yeast-mammalian hybrid genes and a deletion mutant yeast RASSC-1 gene were shown to induce morphologic transformation of mouse NIH 3T3 cells when the genes had a point mutation analogous to one that increases the transforming activity of mammalian ras genes. The results establish the functional relevance of the yeast system to the genetics and biochemistry of cellular transformation induced by mammalian ras genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeFeo-Jones, D -- Tatchell, K -- Robinson, L C -- Sigal, I S -- Vass, W C -- Lowy, D R -- Scolnick, E M -- CA37702/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Apr 12;228(4696):179-84.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3883495" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Transformation, Neoplastic/metabolism ; DNA, Recombinant/metabolism ; Drosophila/genetics ; Mice ; Neoplasm Proteins/*genetics/metabolism ; Nucleic Acid Hybridization ; *Oncogenes ; Plasmids ; Saccharomyces cerevisiae/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Retroviral vector-mediated gene transfer into human hematopoietic progenitor cells (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-11-29
    Description: The transfer of the human gene for hypoxanthine phosphoribosyltransferase (HPRT) into human bone marrow cells was accomplished by use of a retroviral vector. The cells were infected in vitro with a replication-incompetent murine retroviral vector that carried and expressed a mutant HPRT complementary DNA. The infected cells were superinfected with a helper virus and maintained in long-term culture. The production of progeny HPRT virus by the bone marrow cells was demonstrated with a colony formation assay on cultured HPRT-deficient, ouabain-resistant murine fibroblasts. Hematopoietic progenitor cells able to form colonies of granulocytes or macrophages (or both) in semisolid medium in the presence of colony stimulating factor were present in the nonadherent cell population. Colony forming units cloned in agar and subsequently cultured in liquid medium produced progeny HPRT virus, indicating infection of this class of hematopoietic progenitor cell.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gruber, H E -- Finley, K D -- Hershberg, R M -- Katzman, S S -- Laikind, P K -- Seegmiller, J E -- Friedmann, T -- Yee, J K -- Jolly, D J -- AM 13622/AM/NIADDK NIH HHS/ -- GM 28223/GM/NIGMS NIH HHS/ -- HD20034/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Nov 29;230(4729):1057-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3864246" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Gene Expression Regulation ; *Genetic Engineering ; Genetic Vectors ; Hematopoietic Stem Cells/*physiology ; Humans ; Hypoxanthine Phosphoribosyltransferase/*genetics ; Mice ; Retroviridae/*genetics ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Partial primary structure of the alpha and beta chains of human tumor T-cell receptors (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-01-18
    Description: The T-cell receptor for antigen (Ti) was purified from the human tumor cell line HPB-ALL. Amino-terminal sequence analysis of an acid-cleaved peptide of the Ti alpha chain showed that it is highly homologous to a putative murine alpha chain recently described. Amino-terminal sequence analysis of the Ti beta chain revealed that it shares 50 percent homology with the Ti beta chain amino acid sequences from two other human T-cell tumors. Nucleotide sequence analysis of a complementary DNA clone encoding the Ti beta chain from the HPB-MLT cell line showed that this chain represents a second human constant region gene segment and suggested that it arises from direct joining of the variable and joining gene segments without any intervening D region sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, N -- Leiden, J -- Dialynas, D -- Fraser, J -- Clabby, M -- Kishimoto, T -- Strominger, J L -- Andrews, D -- Lane, W -- Woody, J -- 5 R01 AI15669/AI/NIAID NIH HHS/ -- AI10736/AI/NIAID NIH HHS/ -- Y001CP00502/CP/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Jan 18;227(4684):311-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3871253" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Humans ; Immunoglobulin Constant Regions/genetics ; Leukemia, Lymphoid/immunology ; Lymphoma/immunology ; Mice ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics ; T-Lymphocytes/*immunology
    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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  • 7
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    Chromosomal locations of the murine T-cell receptor alpha-chain gene and the T-cell gamma gene (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-02-22
    Description: Two independent methods were used to identify the mouse chromosomes on which are located two families of immunoglobulin (Ig)-like genes that are rearranged and expressed in T lymphocytes. The genes coding for the alpha subunit of T-cell receptors are on chromosome 14 and the gamma genes, whose function is yet to be determined, are on chromosome 13. Since genes for the T-cell receptor beta chain were previously shown to be on mouse chromosome 6, all three of the Ig-like multigene families expressed and rearranged in T cells are located on different chromosomes, just as are the B-cell multigene families for the Ig heavy chain, and the Ig kappa and lambda light chains. The findings do not support earlier contentions that genes for T-cell receptors are linked to the Ig heavy chain locus (mouse chromosome 12) or to the major histocompatibility complex (mouse chromosome 17).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kranz, D M -- Saito, H -- Disteche, C M -- Swisshelm, K -- Pravtcheva, D -- Ruddle, F H -- Eisen, H N -- Tonegawa, S -- CA-24051/CA/NCI NIH HHS/ -- CA-28900-04/CA/NCI NIH HHS/ -- GM 30476-03/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Feb 22;227(4689):941-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3918347" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Chromosome Mapping ; Cricetinae ; Cricetulus ; Genes ; Humans ; Hybrid Cells/metabolism ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin alpha-Chains/*genetics ; Immunoglobulin gamma-Chains/*genetics ; Major Histocompatibility Complex ; Mice ; Receptors, Antigen, T-Cell/*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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  • 8
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    A transgenic mouse model of the chronic hepatitis B surface antigen carrier state (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-12-06
    Description: In an attempt to establish a model of the healthy carrier state in hepatitis B virus (HBV) infections, transgenic mice expressing HBV genes were produced. Fertilized one-cell eggs were microinjected with subgenomic fragments of HBV DNA containing the coding regions for the HBV surface antigen (HBsAg) and pre-S and X antigens. Either the normal (HBV) or metallothionein promoters were used to obtain expression of the HBV genes. There was no evidence of viral replication or tissue pathology. The integrated HBV DNA sequences were inherited in a normal Mendelian fashion. Three of 16 transgenic mice expressed HBV-encoded gene products to which they were immunologically tolerant. Expression was not tissue specific and may be influenced by the genomic integration site and cellular factors. Both HBsAg and pre-S antigen were detectable within the cytoplasm of hepatocytes and renal tubular epithelial cells. High serum concentrations of HBsAg were detectable and the secreted product appeared authentic as judged by mean density, morphology, mean particle diameter, polypeptide composition, and antigenicity. The absence of tissue pathology in these immunologically tolerant animals supports the hypothesis that cellular injury under these conditions is not a direct consequence of expression of the pre-S or HBs regions of the HBV genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chisari, F V -- Pinkert, C A -- Milich, D R -- Filippi, P -- McLachlan, A -- Palmiter, R D -- Brinster, R L -- AI00585/AI/NIAID NIH HHS/ -- AI20001/AI/NIAID NIH HHS/ -- AI20720/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1985 Dec 6;230(4730):1157-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3865369" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier State/*genetics/immunology ; *Disease Models, Animal ; *Genetic Engineering ; Hepatitis B/*genetics/immunology ; Hepatitis B Surface Antigens/*genetics ; Hepatitis B virus/genetics ; Humans ; Liver/microbiology ; Mice ; Mice, Inbred C57BL/genetics ; Nucleic Acid Hybridization
    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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  • 9
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    Characterization of gp41 as the transmembrane protein coded by the HTLV-III/LAV envelope gene (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-09-27
    Description: Radiolabeled amino acid sequencing was used to characterize gp41, an antigen of HTLV-III/LAV, the virus believed to be the etiological agent of the acquired immune deficiency syndrome. This antigen is the one most commonly detected in immunoblot assays by sera of patients with AIDS or AIDS-related complex (ARC) and other individuals infected with HTLV-III/LAV. A mouse monoclonal antibody that was reactive with gp41 precipitated a 160-kilodalton protein (gp160) in addition to gp41, but did not precipitate a 120-kilodalton protein (gp120) from extracts of metabolically labeled cells producing HTLV-III. Extracts of infected cells that had been labeled with tritiated leucine or isoleucine were immunoprecipitated with the monoclonal antibody. The immunoprecipitates were fractionated by polyacrylamide gel electrophoresis and the p41 was eluted from the gel bands and subjected to amino-terminal radiolabeled amino acid sequencing by the semiautomated Edman degradation. Leucine residues occurred in cycles 7, 9, 12, 26, 33, and 34 among 40 cycles and isoleucine occurred in cycle 4 among 24 cycles analyzed. Comparison of the data with the deduced amino acid sequence of the env gene product of HTLV-III precisely placed gp41 in the COOH-terminal region of the env gene product. Gp160 is thus the primary env gene product and it is processed into gp120 and gp41.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Veronese, F D -- DeVico, A L -- Copeland, T D -- Oroszlan, S -- Gallo, R C -- Sarngadharan, M G -- New York, N.Y. -- Science. 1985 Sep 27;229(4720):1402-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2994223" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/microbiology ; Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Antigens, Viral/genetics/immunology ; Deltaretrovirus/*genetics ; *Genes, Viral ; Humans ; Mice ; Mice, Inbred BALB C ; Viral Envelope Proteins/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Identification of the protein encoded by the E6 transforming gene of bovine papillomavirus (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-10-25
    Description: Papillomaviruses (PV) contain several conserved genes that may encode nonstructural proteins; however, none of these predicted gene products have been identified. Papillomavirus E6 genes are retained and expressed as RNA in PV-associated human and animal carcinomas and cell lines. This suggests that the E6 gene product may be important in the maintenance of the malignant phenotype. The E6 open reading frame of the bovine papillomavirus (BPV) genome has been identified as one of two BPV genes that can independently transform mouse cells in vitro. A polypeptide encoded by this region of BPV was produced in a bacterial expression vector and used to raise antisera. The antisera specifically immunoprecipitated the predicted 15.5-kilodalton BPV E6 protein from cells transformed by the E6 gene. The E6 protein was identified in both the nuclear and membrane fractions of these transformed cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Androphy, E J -- Schiller, J T -- Lowy, D R -- 5-F32-CA-07237/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Oct 25;230(4724):442-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2996134" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bovine papillomavirus 1/*genetics ; Cell Line ; Cell Transformation, Viral ; *Genes, Viral ; Mice ; Oncogenes ; Papillomaviridae/*genetics ; RNA, Messenger/genetics ; Rabbits ; Rats ; Tumor Virus Infections/genetics ; Viral Proteins/*genetics/isolation & purification
    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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