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  • 1
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    Expanded HIV-1 cellular tropism by phenotypic mixing with murine endogenous retroviruses (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-02-16
    Description: In view of the current interest in in vivo murine models for acquired immunodeficiency syndrome (AIDS), the interaction between human immunodeficiency virus type 1 (HIV-1) and endogenous murine leukemia virus (MuLV)-related retroviruses was investigated with a human leukemic T cell line (PF-382x) that acquired xenotropic MuLV (X-MuLV) after in vivo passage in immunosuppressed mice. Despite similar levels of membrane CD4 expression and HIV-1 125I-labeled gp 120 binding, a dramatic acceleration in the time course of HIV-1 infection was observed in PF-382x compared to its X-MuLV-negative counterpart (PF-382). Moreover, PF-382 cells coinfected by X-MuLV and HIV-1 generated a progeny of phenotypically mixed viral particles, enabling HIV-1 to productively infect a panel of CD4- human cells, including B lymphoid cells and purified normal peripheral blood CD4-/CD8+ T lymphocytes. Mixed viral phenotypes were also produced by human CD4+ T cells coinfected with an amphotropic MuLV-related retrovirus (A-MuLV) and HIV-1. These data show that endogenous MuLV acquired by human cells transplanted into mice can significantly interact with HIV-1, thereby inducing important alterations of HIV-1 biological properties.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lusso, P -- di Marzo Veronese, F -- Ensoli, B -- Franchini, G -- Jemma, C -- DeRocco, S E -- Kalyanaraman, V S -- Gallo, R C -- New York, N.Y. -- Science. 1990 Feb 16;247(4944):848-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Tumor Cell Biology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2305256" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/immunology ; Animals ; Antibodies, Monoclonal ; Antigens, CD4/analysis ; Cell Line ; Cell Transformation, Viral ; Disease Models, Animal ; HIV-1/*genetics/physiology ; Hematopoietic Stem Cells/cytology/microbiology ; Humans ; Mice ; Phenotype ; Retroviridae/*genetics ; Viral Proteins/analysis ; Virus Replication
    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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    Isolation of human T-cell leukemia virus in acquired immune deficiency syndrome (AIDS) (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-20
    Description: Several isolates of a human type-C retrovirus belonging to one group, known as human T-cell leukemia virus (HTLV), have previously been obtained from patients with adult T-cell leukemia or lymphoma. The T-cell tropism of HTLV and its prevalence in the Caribbean basin prompted a search for it in patients with the epidemic T-cell immune deficiency disorder known as AIDS. Peripheral blood lymphocytes from one patient in the United States and two in France were cultured with T-cell growth factor (TCGF) an shown to express HTLV antigens. Virus from the U.S. patient was isolated and characterized and shown to be related to HTLV subgroup I. The virus was also transmitted into normal human T cells from umbilical cord blood of a newborn. Whether or not HTLV-I or other retroviruses of this family with T-cell tropism cause AIDS, it is possible that patients from whom the virus can be isolated can also transmit it to others. If the target cell of AIDS is the mature T cell as suspected, the methods used in these studies may prove useful for the long-term growth of these cells and for the identification of antigens specific for the etiological agent of AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallo, R C -- Sarin, P S -- Gelmann, E P -- Robert-Guroff, M -- Richardson, E -- Kalyanaraman, V S -- Mann, D -- Sidhu, G D -- Stahl, R E -- Zolla-Pazner, S -- Leibowitch, J -- Popovic, M -- New York, N.Y. -- Science. 1983 May 20;220(4599):865-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6601823" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/etiology/immunology/*microbiology ; Animals ; Antibodies, Monoclonal/immunology ; Antibodies, Viral/immunology ; Female ; Humans ; Immunity, Cellular ; Male ; Retroviridae/*isolation & purification ; T-Lymphocytes/microbiology ; Tumor Virus Infections/complications/*microbiology/transmission
    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)
    Location Call Number Expected Availability
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    PAPER CURRENT
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