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1994-08-09
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Document 0052
DOCN M9480052
TI Lack of evidence for the dichotomy of TH1 and TH2 predominance in
HIV-infected individuals [see comments]
DT 9410
AU Graziosi C; Pantaleo G; Gantt KR; Fortin JP; Demarest JF; Cohen OJ;
Sekaly RP; Fauci AS; Laboratory of Immunoregulation, National Institute
of Allergy and; Infectious Diseases, National Institutes of Health,
Bethesda, MD; 20892.
SO Science. 1994 Jul 8;265(5169):248-52. Unique Identifier : AIDSLINE
MED/94294789
CM Comment in: Science 1994 Jul 8;265(5169):193-4
AB A switch from a T helper 1 (TH1) cytokine phenotype to a TH2 phenotype
has been proposed as a critical element in the progression of human
immunodeficiency virus (HIV) disease. Here, constitutive cytokine
expression was analyzed in unfractionated and sorted cell populations
isolated from peripheral blood and lymph nodes of HIV-infected
individuals at different stages of disease. Expression of interleukin-2
(IL-2) and IL-4 was barely detectable (or undetectable) regardless of
the stage of disease. CD8+ cells expressed large amounts of interferon
gamma and IL-10, and the levels of these cytokines remained stably high
throughout the course of infection. Furthermore, similar patterns of
cytokine expression were observed after stimulation in vitro of purified
CD4+ T cell populations obtained from HIV-infected individuals at
different stages of disease. These results indicate that a switch from
the TH1 to the TH2 cytokine phenotype does not occur during the
progression of HIV disease.
DE Antigens, CD8/ANALYSIS Apoptosis Cell Separation Comparative Study
Cross-Sectional Studies Human HIV Infections/*IMMUNOLOGY Interferon
Type II/*BIOSYNTHESIS Interleukin-10/BIOSYNTHESIS
Interleukin-2/BIOSYNTHESIS Interleukin-4/BIOSYNTHESIS
Interleukins/*BIOSYNTHESIS Longitudinal Studies Lymph Nodes/IMMUNOLOGY
Lymphocyte Transformation Phenotype T-Lymphocyte
Subsets/CYTOLOGY/*IMMUNOLOGY T-Lymphocytes, Helper-Inducer/*IMMUNOLOGY
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).