Document 0779 DOCN M9590779 TI Isolation and characterization of a syncytium-inducing, macrophage/T-cell line-tropic human immunodeficiency virus type 1 isolate that readily infects chimpanzee cells in vitro and in vivo. DT 9509 AU Shibata R; Hoggan MD; Broscius C; Englund G; Theodore TS; Buckler-White A; Arthur LO; Israel Z; Schultz A; Lane HC; et al; Laboratory of Molecular Microbiology, National Institute of; Allergy and Infectious Diseases, Bethesda, MD 20892-0460, USA. SO J Virol. 1995 Jul;69(7):4453-62. Unique Identifier : AIDSLINE MED/95287502 AB Fresh human immunodeficiency virus type 1 (HIV-1) isolates from patients with AIDS were screened for infectivity in chimpanzee peripheral blood mononuclear cells (PBMC) to identify strains potentially able to generate high virus loads in an inoculated animal. Only 3 of 23 isolates obtained were infectious in chimpanzee cells. Of these three, only one (HIV-1DH12) was able to initiate a productive infection in PBMC samples from all 25 chimpanzees tested. HIV-1DH12 tissue culture infections were characterized by extremely rapid replication kinetics, profound cytopathicity, and tropism for chimp and human PBMC, primary human macrophage, and several human T-cell lines. An infection was established within 1 week of inoculating a chimpanzee with 50 50% tissue culture infective doses of HIV-1DH12; cell-free virus was recovered from the plasma at weeks 1, 2, and 4 and was associated with the development of lymphadenopathy. Virus loads during the primary infection and at 6 months postinoculation were comparable to those reported in HIV-1-seropositive individuals. DE Acquired Immunodeficiency Syndrome/VIROLOGY Adult Amino Acid Sequence Animal Base Sequence Cell Line Chimpansee troglodytes Cloning, Molecular DNA, Viral/GENETICS Human HIV-1/ISOLATION & PURIF/*PATHOGENICITY Macrophages/*VIROLOGY Male Molecular Sequence Data T-Lymphocytes/*VIROLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).