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1996-03-09
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Document 0220
DOCN M9650220
TI Gamma delta T lymphocyte responses to HIV.
DT 9605
AU Wallace M; Bartz SR; Chang WL; Mackenzie DA; Pauza CD; Malkovsky M;
Department of Medical Microbiology and Immunology, University of;
Wisconsin Medical School, Madison, USA.
SO Clin Exp Immunol. 1996 Feb;103(2):177-84. Unique Identifier : AIDSLINE
MED/96152662
AB Natural immunity may be involved in controlling viral spread in hosts
infected with HIV. A panel of gamma delta T cell receptor-positive
lymphocyte clones was isolated from the peripheral blood of healthy HIV-
donors and tested for anti-HIV cytotoxic responses. Twelve of 30 (40%) V
gamma 9+/V delta 2+ T cell clones, but none of seven V delta 1+ T cell
clones, displayed lytic activity against HIV-infected cells. The V gamma
9+/V delta 2+ clones cytotoxic for HIV-infected cells also lysed Daudi
cells. However, not all V gamma 9+/V delta 2+ clones which lysed Daudi
targets had the capacity to lyse HIV-infected cells. Some of the gamma
delta T cell clones were also investigated for potential proliferative
responses to HIV-infected cells. One V gamma 9+/V delta 2+ T cell clone
(ME8-7) and one V delta 1+ T cell clone (ME18-2) demonstrated
proliferative responses towards HIV-infected cells. Another V gamma 9+/V
delta 2+ clone (VM39) proliferated in response to cell-free HIV. Taken
together, these results provide direct evidence of anti-HIV gamma delta
T cell responses in healthy, HIV- persons.
DE Clone Cells *Cytotoxicity, Immunologic Human HIV
Infections/*IMMUNOLOGY HIV-1/*IMMUNOLOGY Receptors, Antigen, T-Cell,
gamma-delta/*IMMUNOLOGY Support, Non-U.S. Gov't Support, U.S. Gov't,
P.H.S. T-Lymphocyte Subsets T-Lymphocytes/*IMMUNOLOGY/VIROLOGY
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).