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1996-02-26
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Document 0901
DOCN M9620901
TI Contribution of alpha interferon (alpha IFN) to HIV-induced
immunosuppression.
DT 9602
AU Lachgar A; Bizzini B; Laboratoire de Physiologie Cellulaire, Universite
Pierre et; Marie Curie, Paris, France.
SO Cell Mol Biol (Noisy-le-grand). 1995 May;41(3):431-7. Unique Identifier
: AIDSLINE MED/96059405
AB In the present investigation we have shown that PBLs taken from
HIV-positive patients suppressed T-cell proliferation when cultured for
at least 12 days. When infected In vitro with HIV-1, these cells become
suppressive after 6 days. PBLs collected from seronegative individuals
turned out to be non-suppressive even after prolonged culturing.
However, when infected in vitro with HIV they were found to be
cytostatic also after 6 days. This anti-immune activity, related to HIV
infection, is mediated, at least in part, by alpha IFN, since about 50%
of this HIV associated activity could be quenched by alpha IFN
antibodies. We also showed that this T-cell cytostasis is associated
with CD8+ cells. In view of a possible use of suppressive cells for
T-cell vaccination, we verified that such cellular functions were
abolished by aldehyde treatment.
DE Acquired Immunodeficiency Syndrome/*IMMUNOLOGY Aldehydes/PHARMACOLOGY
Comparative Study CD8-Positive T-Lymphocytes/IMMUNOLOGY/METABOLISM
Female Human HIV-1/IMMUNOLOGY Immune Sera/PHARMACOLOGY *Immune
Tolerance In Vitro Interferon-alpha/BIOSYNTHESIS/*IMMUNOLOGY
Lymphocyte Transformation Lymphocytes/DRUG EFFECTS/*IMMUNOLOGY/VIROLOGY
Male T-Lymphocytes/IMMUNOLOGY Time Factors JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).