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  • Mice, Inbred C57BL
  • American Association for the Advancement of Science (AAAS)  (19)
  • American Institute of Physics (AIP)
  • Nature Publishing Group (NPG)
  • Wiley
  • 2010-2014
  • 1990-1994  (19)
  • 1993  (19)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (19)
  • American Institute of Physics (AIP)
  • Nature Publishing Group (NPG)
  • Wiley
Years
  • 2010-2014
  • 1990-1994  (19)
Year
  • 1
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    Disappearance of the lymphoid system in Bcl-2 homozygous mutant chimeric mice (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-09-17
    Description: The bcl-2 proto-oncogene can prevent the death of many cell types. Mice were generated that were chimeric for the homozygous inactivation of bcl-2. Lymphocytes without Bcl-2 differentiated into phenotypically mature cells. However, in vitro, the mature T cells that lacked Bcl-2 had shorter life-spans and increased sensitivity to glucocorticoids and gamma-irradiation. In contrast, stimulation of CD3 inhibited the death of these cells. T and B cells with no Bcl-2 disappeared from the bone marrow, thymus, and periphery by 4 weeks of age. Thus, Bcl-2 was dispensable for lymphocyte maturation, but was required for a stable immune system after birth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakayama, K -- Negishi, I -- Kuida, K -- Shinkai, Y -- Louie, M C -- Fields, L E -- Lucas, P J -- Stewart, V -- Alt, F W -- AI 15322/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1993 Sep 17;261(5128):1584-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8372353" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD3/immunology ; Apoptosis ; B-Lymphocytes/cytology/*immunology ; Base Sequence ; Bone Marrow/immunology ; Bone Marrow Cells ; Cell Line ; Chimera ; Homozygote ; Humans ; Lymphoid Tissue/cytology/immunology ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Proto-Oncogene Proteins/genetics/*physiology ; Proto-Oncogene Proteins c-bcl-2 ; Proto-Oncogenes ; Receptors, Antigen, T-Cell/immunology ; T-Lymphocytes/cytology/*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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  • 2
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    Shutdown of class switch recombination by deletion of a switch region control element (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-02-12
    Description: Upon activation, B lymphocytes can change the class of the antibody they express by immunoglobulin class switch recombination. Cytokines can direct this recombination to distinct classes by the specific activation of repetitive recombinogenic DNA sequences, the switch regions. Recombination to a particular switch region (s gamma 1) was abolished in mice that were altered to lack sequences that are 5' to the s gamma 1 region. This result directly implicates the functional importance of 5' switch region flanking sequences in the control of class switch recombination. Mutant mice exhibit a selective agammaglobulinemia and may be useful in the assessment of the biological importance of immunoglobulin G1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jung, S -- Rajewsky, K -- Radbruch, A -- New York, N.Y. -- Science. 1993 Feb 12;259(5097):984-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genetics, University of Cologne, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8438159" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology ; Base Sequence ; Cell Line ; Chimera ; Drug Resistance/genetics ; Embryo, Mammalian ; *Gene Deletion ; Immunoglobulin G/genetics ; Immunoglobulin Heavy Chains/genetics ; Immunoglobulin Switch Region/*genetics ; Interleukin-4/pharmacology ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Mutagenesis ; Neomycin ; *Recombination, Genetic ; Stem Cells
    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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    Uncovering of functional alternative CTLA-4 counter-receptor in B7-deficient mice (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-11-05
    Description: B7 delivers a costimulatory signal through CD28, resulting in interleukin-2 secretion and T cell proliferation. Blockade of this pathway results in T cell anergy. The in vivo role of B7 was evaluated with B7-deficient mice. These mice had a 70 percent decrease in costimulation of the response to alloantigen. Despite lacking B7 expression, activated B cells from these mice bound CTLA-4 and GL1 monoclonal antibody, demonstrating that alternative CTLA-4 ligand or ligands exist. These receptors are functionally important because the residual allogenic mixed lymphocyte responses were blocked by CTLA4Ig. Characterization of these CTLA-4 ligands should lead to strategies for manipulating the immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freeman, G J -- Borriello, F -- Hodes, R J -- Reiser, H -- Hathcock, K S -- Laszlo, G -- McKnight, A J -- Kim, J -- Du, L -- Lombard, D B -- CA 40216/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Nov 5;262(5135):907-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematologic Malignancies, Dana-Farber Cancer Institute, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7694362" target="_blank"〉PubMed〈/a〉
    Keywords: Abatacept ; Animals ; Antigens, CD ; Antigens, CD80/genetics/*immunology/metabolism ; Antigens, Differentiation/immunology/*metabolism ; B-Lymphocytes/*immunology ; Base Sequence ; CTLA-4 Antigen ; Cell Line ; *Immunoconjugates ; Interleukin-2/secretion ; Isoantigens/immunology ; Lymphocyte Activation ; Lymphocyte Culture Test, Mixed ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Knockout ; Molecular Sequence Data ; Mutation ; T-Lymphocytes/*immunology ; 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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  • 4
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    Helper T cells without CD4: control of leishmaniasis in CD4-deficient mice (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-09-10
    Description: Expression of either the CD4 or CD8 glycoproteins discriminates two functionally distinct lineages of T lymphocytes. A null mutation in the gene encoding CD4 impairs the development of the helper cell lineage that is normally defined by CD4 expression. Infection of CD4-null mice with Leishmania has revealed a population of functional helper T cells that develops despite the absence of CD4. These CD8- alpha beta T cell receptor+ T cells are major histocompatibility complex class II-restricted and produce interferon-gamma when challenged with parasite antigens. These results indicate that T lymphocyte lineage commitment and peripheral function need not depend on the function of CD4.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Locksley, R M -- Reiner, S L -- Hatam, F -- Littman, D R -- Killeen, N -- AI30663/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1993 Sep 10;261(5127):1448-51.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143-0654.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8367726" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD4/genetics/*immunology ; Antigens, CD8/immunology ; Antigens, Protozoan/immunology ; B-Lymphocytes/immunology ; Base Sequence ; CD4-CD8 Ratio ; Histocompatibility Antigens Class II/immunology ; Hypersensitivity, Delayed ; Interferon-gamma/biosynthesis/immunology ; Leishmania tropica/*immunology ; Leishmaniasis, Cutaneous/*immunology ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Mutation ; Oligodeoxyribonucleotides ; Receptors, Antigen, T-Cell, alpha-beta/immunology ; T-Lymphocytes/immunology ; T-Lymphocytes, Helper-Inducer/*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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  • 5
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    Inhibition of viral replication by interferon-gamma-induced nitric oxide synthase (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-09-10
    Description: Interferons (IFNs) induce antiviral activity in many cell types. The ability of IFN-gamma to inhibit replication of ectromelia, vaccinia, and herpes simplex-1 viruses in mouse macrophages correlated with the cells' production of nitric oxide (NO). Viral replication was restored in IFN-gamma-treated macrophages exposed to inhibitors of NO synthase. Conversely, epithelial cells with no detectable NO synthesis restricted viral replication when transfected with a complementary DNA encoding inducible NO synthase or treated with organic compounds that generate NO. In mice, an inhibitor of NO synthase converted resolving ectromelia virus infection into fulminant mousepox. Thus, induction of NO synthase can be necessary and sufficient for a substantial antiviral effect of IFN-gamma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karupiah, G -- Xie, Q W -- Buller, R M -- Nathan, C -- Duarte, C -- MacMicking, J D -- CA43610/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Sep 10;261(5127):1445-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7690156" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Oxidoreductases/*biosynthesis/metabolism ; Animals ; Arginine/analogs & derivatives/pharmacology ; Cell Line ; Cells, Cultured ; Ectromelia virus/drug effects/*physiology ; Ectromelia, Infectious/microbiology ; Enzyme Induction ; Female ; Humans ; Interferon-gamma/*pharmacology ; Macrophages/*microbiology ; Mice ; Mice, Inbred C57BL ; Nitric Oxide/metabolism/pharmacology ; Nitric Oxide Synthase ; Simplexvirus/drug effects/physiology ; Transfection ; Vaccinia virus/drug effects/physiology ; *Virus Replication/drug effects ; omega-N-Methylarginine
    Print ISSN: 0036-8075
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  • 6
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    Mice lacking TdT: mature animals with an immature lymphocyte repertoire (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-08-27
    Description: In adult animals, template-independent (or N) nucleotides are frequently added during the rearrangement of variable (V), diversity (D), and joining (J) segments of lymphocyte receptor genes, greatly enhancing junctional diversity. Receptor genes from adult mice carrying a mutation in the terminal deoxynucleotidyl transferase (TdT) gene have few N nucleotides, providing proof that this enzyme is essential for creating diversity. Unlike those from normal adults, receptor genes from adult mutant mice show extensive evidence of homology-directed recombination, suggesting that TdT blocks this process. Thus, switch-on of the TdT gene during the first week after birth provokes an even greater expansion of lymphocyte receptor diversity than had previously been thought.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gilfillan, S -- Dierich, A -- Lemeur, M -- Benoist, C -- Mathis, D -- New York, N.Y. -- Science. 1993 Aug 27;261(5125):1175-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Genetique Moleculaire des Eucaryotes du CNRS, Institut de Chimie Biologique, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8356452" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA Nucleotidylexotransferase/genetics/*metabolism ; Gene Rearrangement, B-Lymphocyte ; Gene Rearrangement, T-Lymphocyte ; *Genes, Immunoglobulin ; Immunoglobulin Joining Region/genetics ; Immunoglobulin Variable Region/genetics ; Lymphocytes/*immunology ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Mutation ; Nucleotides/*metabolism ; Receptors, Antigen, T-Cell/*genetics ; Recombination, Genetic
    Print ISSN: 0036-8075
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  • 7
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    Differential T cell costimulatory requirements in CD28-deficient mice (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-07-30
    Description: T cell receptor stimulation without costimulation is insufficient for the induction of an optimal immune response. It is thought that engagement of the CD28 molecule with its ligand B7 provides an essential costimulatory signal without which full activation of T cells cannot occur. A mouse strain with a defective CD28 gene was established. Development of T and B cells in the CD28-deficient mice appeared normal. However, T lymphocytes derived from CD28-/- mutant mice had impaired responses to lectins. Lectin stimulation did not trigger interleukin-2 (IL-2) production, IL-2 receptor alpha expression was significantly decreased, and exogenous IL-2 only partially rescued the CD28 defect. Basal immunoglobulin (Ig) concentrations in CD28-deficient mice were about one-fifth of those found in wild-type controls, with low titers of IgG1 and IgG2b but an increase in IgG2a. In addition, activity of T helper cells in CD28-/- mice was reduced and immunoglobulin class switching was diminished after infection with vesicular stomatitis virus. However, cytotoxic T cells could still be induced and the mice showed delayed-type hypersensitivity after infection with lymphocytic choriomeningitis virus. Thus, CD28 is not required for all T cell responses in vivo, suggesting that alternative costimulatory pathways may exist.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shahinian, A -- Pfeffer, K -- Lee, K P -- Kundig, T M -- Kishihara, K -- Wakeham, A -- Kawai, K -- Ohashi, P S -- Thompson, C B -- Mak, T W -- New York, N.Y. -- Science. 1993 Jul 30;261(5121):609-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Biophysics and Immunology, University of Toronto, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7688139" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/blood ; Antigens, CD/genetics/*immunology ; Antigens, CD28 ; Antigens, CD80 ; Antigens, Differentiation, T-Lymphocyte/genetics/*immunology ; Antigens, Surface/immunology ; B-Lymphocytes/immunology ; Concanavalin A/pharmacology ; Immunoglobulins/blood ; Interleukin-2/biosynthesis/pharmacology ; *Lymphocyte Activation ; Lymphocytic Choriomeningitis/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Mice, Mutant Strains ; Mutation ; Receptors, Interleukin-2/metabolism ; T-Lymphocytes/*immunology ; T-Lymphocytes, Cytotoxic/immunology ; T-Lymphocytes, Helper-Inducer/immunology ; Vesicular stomatitis Indiana virus/immunology ; Virus Diseases/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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  • 8
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    Multiple defects of immune cell function in mice with disrupted interferon-gamma genes (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-03-19
    Description: Interferon-gamma (IFN-gamma) is a pleiotrophic cytokine with immunomodulatory effects on a variety of immune cells. Mice with a targeted disruption of the IFN-gamma gene were generated. These mice developed normally and were healthy in the absence of pathogens. However, mice deficient in IFN-gamma had impaired production of macrophage antimicrobial products and reduced expression of macrophage major histocompatibility complex class II antigens. IFN-gamma-deficient mice were killed by a sublethal dose of the intracellular pathogen Mycobacterium bovis. Splenocytes exhibited uncontrolled proliferation in response to mitogen and alloantigen. After a mixed lymphocyte reaction, T cell cytolytic activity was enhanced against allogeneic target cells. Resting splenic natural killer cell activity was reduced in IFN-gamma-deficient mice. Thus, IFN-gamma is essential for the function of several cell types of the murine immune system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dalton, D K -- Pitts-Meek, S -- Keshav, S -- Figari, I S -- Bradley, A -- Stewart, T A -- New York, N.Y. -- Science. 1993 Mar 19;259(5102):1739-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genentech Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8456300" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Division ; Cytotoxicity, Immunologic ; Histocompatibility Antigens Class II/immunology ; *Immunity ; Interferon-gamma/*genetics/physiology ; Isoantigens/immunology ; Killer Cells, Natural/immunology ; Lymphocyte Culture Test, Mixed ; Macrophages/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Mycobacterium bovis ; Nitric Oxide/metabolism ; Spleen/cytology/immunology ; T-Lymphocytes/immunology ; Transfection ; Tuberculosis/immunology
    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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    Development of mature CD8+ thymocytes: selection rather than instruction? (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-08-13
    Description: The role of major histocompatibility complex (MHC) molecules in T cell differentiation was investigated by comparison of thymocyte subpopulations in wild-type mice and beta 2-microglobulin (beta 2M) mutant mice deficient in MHC class I expression and mature CD8+ cells. On the basis of surface markers, glucocorticoid resistance, in vitro differentiation capacity, and absence in beta 2 M-l- mice, CD4intermediateCD8hi cells with high expression of alpha beta T cell receptor (TCR alpha beta) were identified as having been positively selected by MHC class I for development into mature CD8+ T cells. Activated CD4intCD8hi cells bearing intermediate rather than high amounts of TCR were present in both wild-type and beta 2M-l- animals. These data suggest that recognition of MHC class I molecules is required for full maturation to CD8+ T cells, but not for receptor-initiated commitment to the CD8+ lineage, consistent with a stochastic (selection) model of thymocyte development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van Meerwijk, J P -- Germain, R N -- New York, N.Y. -- Science. 1993 Aug 13;261(5123):911-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Biology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8102208" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD4/analysis ; Antigens, CD8/*analysis ; CD4-Positive T-Lymphocytes/cytology/immunology ; Cell Differentiation ; Dexamethasone/pharmacology ; Histocompatibility Antigens Class I/*physiology ; Male ; Mice ; Mice, Inbred C57BL ; Phenotype ; Receptors, Antigen, T-Cell, alpha-beta/*analysis ; T-Lymphocyte Subsets/cytology/drug effects/*immunology
    Print ISSN: 0036-8075
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  • 10
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    Induction of type I diabetes by interferon-alpha in transgenic mice (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-06-25
    Description: Type I diabetes is an autoimmune disease involving an interaction between an epigenetic event (possibly a viral infection), the pancreatic beta cells, and the immune system in a genetically susceptible host. The possibility that the type I interferons could mediate this interaction was tested with transgenic mice in which the insulin-producing beta cells expressed an interferon-alpha. These mice developed a hypoinsulinemic diabetes associated with a mixed inflammation centered on the islets. The inflammation and the diabetes were prevented with a neutralizing antibody to the interferon-alpha. Thus, the expression of interferon-alpha by the beta cells could be causal in the development of type I diabetes, which suggests a therapeutic approach to this disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stewart, T A -- Hultgren, B -- Huang, X -- Pitts-Meek, S -- Hully, J -- MacLachlan, N J -- New York, N.Y. -- Science. 1993 Jun 25;260(5116):1942-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Endocrine Research, Genentech, Inc., South San Francisco, CA 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8100367" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/therapeutic use ; CD4-CD8 Ratio ; CD4-Positive T-Lymphocytes ; Diabetes Mellitus, Type 1/*etiology/immunology/pathology ; Female ; Glucagon/analysis ; Insulin/analysis/blood ; Interferon-alpha/*biosynthesis/immunology ; Islets of Langerhans/immunology/*metabolism/pathology ; Leukocytes, Mononuclear ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neutralization Tests ; Somatostatin/analysis
    Print ISSN: 0036-8075
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  • 11
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    Thymic selection of cytotoxic T cells independent of CD8 alpha-Lck association (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-09-17
    Description: The CD8 alpha cytoplasmic domain associates with p56lck, a nonreceptor protein-tyrosine kinase. The biological relevance of CD8 alpha-Lck association in T cell development was tested with transgenic mice generated to express a CD8 alpha molecule with two amino acid substitutions in its cytoplasmic domain, which abolishes the association of CD8 alpha with Lck. The CD8 alpha mutant was analyzed in a CD8-/- background and in the context of the transgenic 2C T cell receptor. The development and function of CD8+ T cells in these mice were apparently normal. Thus, CD8 alpha-Lck association is not necessary for positive selection, negative selection, or CD8-dependent cytotoxic function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chan, I T -- Limmer, A -- Louie, M C -- Bullock, E D -- Fung-Leung, W P -- Mak, T W -- Loh, D Y -- AI 155322-13/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1993 Sep 17;261(5128):1581-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Medicine, Genetics, and Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8372352" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD4/metabolism ; Antigens, CD8/immunology/*metabolism ; *Cytotoxicity, Immunologic ; Female ; Genes, MHC Class I ; Lymphocyte Culture Test, Mixed ; Lymphocyte Specific Protein Tyrosine Kinase p56(lck) ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Phosphorylation ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Antigen, T-Cell ; T-Lymphocytes, Cytotoxic/*immunology
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  • 12
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    Resistance of mice deficient in IL-4 to retrovirus-induced immunodeficiency syndrome (MAIDS) (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-10-08
    Description: The murine acquired immunodeficiency syndrome (MAIDS) is induced by a defective murine leukemia virus and has many symptoms similar to those found in patients infected with the human immunodeficiency virus. The presence of both B cells and CD4+ T cells is critical for the development of the disease. Furthermore, a Th2 cytokine response dominates during the progression of the disease. When interleukin-4 (IL-4)-deficient mice that are defective in Th2 cytokine responses were infected, there was no lethality, and the development of the T cell abnormalities associated with MAIDS was delayed. These data suggest that IL-4 or a Th2 response is involved in the development of retrovirus-induced immunodeficiency in mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kanagawa, O -- Vaupel, B A -- Gayama, S -- Koehler, G -- Kopf, M -- A130803/PHS HHS/ -- New York, N.Y. -- Science. 1993 Oct 8;262(5131):240-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Medicine, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8211142" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; DNA Primers ; Gene Products, gag/genetics ; Immunity, Innate ; Interleukin-2/biosynthesis ; Interleukin-4/biosynthesis/deficiency/genetics/*immunology ; Leukemia Virus, Murine/genetics ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Mice, Inbred Strains ; Molecular Sequence Data ; Murine Acquired Immunodeficiency Syndrome/*immunology ; RNA, Messenger/analysis/genetics ; RNA, Viral/analysis/genetics ; T-Lymphocytes, Helper-Inducer/*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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  • 13
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    Atherosclerosis in transgenic mice overexpressing apolipoprotein A-II (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-07-23
    Description: Concentrations of plasma high density lipoprotein (HDL) are inversely correlated with atherosclerotic coronary artery disease. The two most abundant protein constituents of HDL are apolipoproteins A-I and A-II (apoA-I and apoA-II). ApoA-I is required for assembly of HDL and, when overexpressed in transgenic mice, confers resistance to early atherosclerosis. The present studies reveal that transgenic mice that overexpress mouse apoA-II had elevated HDL-cholesterol concentrations but, nevertheless, exhibited increased atherosclerotic lesion development as compared to normal mice. The HDL in the transgenic mice was larger and had an increased ratio of apoA-II to apoA-I. Thus, both the composition and amount of HDL appear to be important determinants of atherosclerosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warden, C H -- Hedrick, C C -- Qiao, J H -- Castellani, L W -- Lusis, A J -- HL-07386/HL/NHLBI NIH HHS/ -- HL-28481/HL/NHLBI NIH HHS/ -- HL-42488/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1993 Jul 23;261(5120):469-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, Los Angeles 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8332912" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apolipoprotein A-I/physiology ; Apolipoprotein A-II/genetics/*physiology ; Arteriosclerosis/*blood/genetics ; Cholesterol/blood ; Crosses, Genetic ; Female ; Lipoproteins, HDL/blood/chemistry ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Mice, Transgenic
    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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  • 14
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    The prevention of thymic lymphomas in transgenic mice by human O6-alkylguanine-DNA alkyltransferase (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-01-08
    Description: Nitrosoureas form O6-alkylguanine-DNA adducts that are converted to G to A transitions, the mutation found in the activated ras oncogenes of nitrosourea-induced mouse lymphomas and rat mammary tumors. These adducts are removed by the DNA repair protein O6-alkylguanine-DNA alkyltransferase. Transgenic mice that express the human homolog of this protein in the thymus were found to be protected from developing thymic lymphomas after exposure to N-methyl-N-nitrosourea. Thus, transgenic expression of a single human DNA repair gene is sufficient to block chemical carcinogenesis. The transduction of DNA repair genes in vivo may unravel mechanisms of carcinogenesis and provide therapeutic protection from known carcinogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dumenco, L L -- Allay, E -- Norton, K -- Gerson, S L -- P01CA51183/CA/NCI NIH HHS/ -- P30CA43703/CA/NCI NIH HHS/ -- R01ES06288/ES/NIEHS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1993 Jan 8;259(5092):219-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University Hospitals of Cleveland, OH.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8421782" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *DNA Repair/genetics ; Gene Expression ; Humans ; Lymphoma, T-Cell/chemically induced/*prevention & control ; Methylnitrosourea ; Methyltransferases/genetics/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; O(6)-Methylguanine-DNA Methyltransferase ; RNA, Messenger/analysis ; Thymus Neoplasms/chemically induced/*prevention & control
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 15
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    Separable regulatory elements governing myogenin transcription in mouse embryogenesis (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-07-09
    Description: Expression of the myogenic helix-loop-helix (HLH) protein myogenin in muscle cell precursors within somites and limb buds is among the earliest events associated with myogenic lineage determination in vertebrates. Mutations in the myogenin promoter that abolish binding sites for myogenic HLH proteins or myocyte enhancer factor-2 (MEF-2) suppressed transcription of a linked lacZ transgene in subsets of myogenic precursors in mouse embryos. These results suggest that myogenic HLH proteins and MEF-2 participate in separable regulatory circuits leading to myogenin transcription and provide evidence for positional regulation of myogenic regulators in the embryo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cheng, T C -- Wallace, M C -- Merlie, J P -- Olson, E N -- New York, N.Y. -- Science. 1993 Jul 9;261(5118):215-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Texas M.D. Anderson Cancer Center, Houston 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8392225" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; DNA-Binding Proteins/genetics/metabolism ; Embryo, Mammalian/*metabolism ; Extremities/embryology ; Female ; MEF2 Transcription Factors ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Mice, Transgenic ; Muscle Proteins/*genetics ; Muscles/*embryology/metabolism ; Mutation ; Myogenic Regulatory Factors ; Myogenin ; Promoter Regions, Genetic ; Trans-Activators/*genetics ; Transcription Factors/genetics/metabolism ; *Transcription, Genetic
    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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  • 16
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    Mutation of unique region of Bruton's tyrosine kinase in immunodeficient XID mice (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-07-16
    Description: The cytoplasmic tyrosine kinase, Bruton's tyrosine kinase (Btk, formerly bpk or atk), is crucial for B cell development. Loss of kinase activity results in the human immunodeficiency, X-linked agammaglobulinemia, characterized by a failure to produce B cells. In the murine X-linked immunodeficiency (XID), B cells are present but respond abnormally to activating signals. The Btk gene, btk, was mapped to the xid region of the mouse X chromosome by interspecific backcross analysis. A single conserved residue within the amino terminal unique region of Btk was mutated in XID mice. This change in xid probably interferes with normal B cell signaling mediated by Btk protein interactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rawlings, D J -- Saffran, D C -- Tsukada, S -- Largaespada, D A -- Grimaldi, J C -- Cohen, L -- Mohr, R N -- Bazan, J F -- Howard, M -- Copeland, N G -- AR36834/AR/NIAMS NIH HHS/ -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Jul 16;261(5119):358-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, University of California, Los Angeles 90024.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8332901" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Lymphocytes/*enzymology/immunology ; Base Sequence ; Cell Line ; Chromosome Mapping ; Crosses, Genetic ; Exons ; Female ; Genetic Linkage ; Immunologic Deficiency Syndromes/enzymology/*genetics/immunology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Mice, Inbred DBA ; Mice, Mutant Strains ; Molecular Sequence Data ; Protein-Tyrosine Kinases/chemistry/*genetics/metabolism ; *X Chromosome
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    Germ line transmission of a yeast artificial chromosome spanning the murine alpha 1(I) collagen locus (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-03-26
    Description: Molecular complementation of mutant phenotypes by transgenic technology is a potentially important tool for gene identification. A technology was developed that allows the transfer of a physically intact yeast artificial chromosome (YAC) into the germ line of the mouse. A purified 150-kilobase YAC encompassing the murine gene Col1a1 was efficiently introduced into embryonic stem (ES) cells via lipofection. Chimeric founder mice were derived from two transfected ES cell clones. These chimeras transmitted the full length transgene through the germ line, generating two transgenic mouse strains. Transgene expression was visualized as nascent transcripts in interphase nuclei and quantitated by ribonuclease protection analysis. Both assays indicated that the transgene was expressed at levels comparable to the endogenous collagen gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Strauss, W M -- Dausman, J -- Beard, C -- Johnson, C -- Lawrence, J B -- Jaenisch, R -- 5 F32 GM13756-02/GM/NIGMS NIH HHS/ -- 5 R35 CA44339-05/CA/NCI NIH HHS/ -- HG00198-01/HG/NHGRI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1993 Mar 26;259(5103):1904-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Cambridge 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8096090" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastocyst/metabolism ; Blotting, Southern ; Chromosomes, Fungal ; Collagen/*genetics ; *Gene Expression ; Gene Library ; In Situ Hybridization ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutagenesis, Insertional ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 18
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    Immune responses in interleukin-2-deficient mice (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-11-12
    Description: The role of costimulatory signals in T cell induction was evaluated in mice lacking the interleukin-2 (IL-2) gene. In vitro secondary antiviral T cell responses were absent unless IL-2 was added, confirming the crucial role of IL-2 in vitro. In vivo, primary and secondary cytotoxic T cell responses against vaccinia and lymphocytic choriomeningitis virus were within normal ranges. B cell reactivity to vesicular stomatitis virus was not impaired. T helper cell responses were delayed but biologically functional. Natural killer cell activity was markedly reduced but inducible. These normal in vivo immune responses in IL-2-deficient mice question the importance of IL-2 as defined by in vitro studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kundig, T M -- Schorle, H -- Bachmann, M F -- Hengartner, H -- Zinkernagel, R M -- Horak, I -- New York, N.Y. -- Science. 1993 Nov 12;262(5136):1059-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Experimental Immunology, University of Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8235625" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/*biosynthesis ; B-Lymphocytes/*immunology ; Cytotoxicity, Immunologic ; Immunoglobulin M/*biosynthesis ; Immunologic Memory ; Interleukin-2/deficiency/*immunology ; Killer Cells, Natural/immunology ; Lymphocytic Choriomeningitis/immunology ; Lymphocytic choriomeningitis virus/immunology ; Mice ; Mice, Inbred C57BL ; Neutralization Tests ; Rhabdoviridae Infections/immunology ; T-Lymphocytes/*immunology ; T-Lymphocytes, Cytotoxic/immunology ; Vaccinia/immunology ; Vaccinia virus/immunology ; Vesicular stomatitis Indiana virus/immunology ; Virus Diseases/*immunology
    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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  • 19
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    Immune response in mice that lack the interferon-gamma receptor (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-03-19
    Description: Interferon-gamma (IFN-gamma) exerts pleiotropic effects, including antiviral activity, stimulation of macrophages and natural killer cells, and increased expression of major histocompatibility complex antigens. Mice without the IFN-gamma receptor had no overt anomalies, and their immune system appeared to develop normally. However, mutant mice had a defective natural resistance, they had increased susceptibility to infection by Listeria monocytogenes and vaccinia virus despite normal cytotoxic and T helper cell responses. Immunoglobulin isotype analysis revealed that IFN-gamma is necessary for a normal antigen-specific immunoglobulin G2a response. These mutant mice offer the possibility for the further elucidation of IFN-gamma-mediated functions by transgenic cell- or tissue-specific reconstitution of a functional receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, S -- Hendriks, W -- Althage, A -- Hemmi, S -- Bluethmann, H -- Kamijo, R -- Vilcek, J -- Zinkernagel, R M -- Aguet, M -- CA 49731/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Mar 19;259(5102):1742-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology I, University of Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8456301" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Viral/blood ; *Immunity ; Immunoglobulin G/blood ; Interferon-gamma/*physiology ; Listeriosis/immunology ; Lymphocyte Subsets ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Receptors, Interferon/genetics/*physiology ; T-Lymphocytes, Cytotoxic/immunology ; T-Lymphocytes, Helper-Inducer/immunology ; Vaccinia/immunology ; Virus Diseases/immunology ; Virus Replication
    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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