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1996-02-26
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Document 0890
DOCN M9620890
TI The CD4+ T-cell network and the cytokine profile after HIV-1 infection.
DT 9602
AU Caterino-de-Araujo A; Secao de Imunologia, Instituto Adolfo Lutz, Sao
Paulo, Brasil.
SO Braz J Med Biol Res. 1995 Jan;28(1):2-6. Unique Identifier : AIDSLINE
MED/96059246
AB The present article discusses CD4+ T-cell interaction and cytokine
production after HIV-1 infection and progression to AIDS. On the basis
of the experience of the author with biological fluids obtained from
patients suspected of having AIDS and the recently available data
concerning this matter, a model is proposed for the CD4+ T-cells network
and CD4+ T-cells destruction during this infection. The mechanism of
cellular killing involves apoptosis and preferential destruction of
activated TH0/TH2-type cells. This type of cells is generated as an
immune response to HIV-1 itself or to allergens and helminth
infestations. The virus replicates more effectively in activated
TH0/TH2-type cells and this contributes to the development of full-blown
AIDS. The author has previously proposed the hypothesis of an elevation
in IL-5 production during later stages of the disease and the use of
eosinophilia of unknown etiology as a prognostic marker of AIDS in
developing countries (Caterino-de-Araujo (1994). Immunology Today, 15:
498-499). At the present time, this proposition is confirmed and the use
of eosinophilia as an indicator of a shift to a TH0/TH2-type response
that predicts progression to AIDS is justified.
DE Acquired Immunodeficiency Syndrome/*PATHOLOGY Apoptosis/*PHYSIOLOGY
Cytokines/*BIOSYNTHESIS CD4-Positive T-Lymphocytes/*PATHOLOGY
Eosinophilia/DIAGNOSIS Human Interleukin-5/BIOSYNTHESIS Th2
Cells/*PHYSIOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).