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1996-03-09
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Document 0154
DOCN M9650154
TI Recombinant interferon-alpha selectively inhibits the production of
interleukin-5 by human CD4+ T cells.
DT 9605
AU Schandene L; Del Prete GF; Cogan E; Stordeur P; Crusiaux A; Kennes B;
Romagnani S; Goldman M; Department of Immunology, Hopital
Erasme-Cliniques; Universitaires de Bruxelles, Belgium.
SO J Clin Invest. 1996 Jan 15;97(2):309-15. Unique Identifier : AIDSLINE
MED/96149155
AB The effects of recombinant IFN-alpha on the production of IL-5 by human
CD4+ T cells were first analyzed on resting CD4+ T cells purified from
normal PBMC and stimulated either with a combination of PMA and
anti-CD28 mAb or anti-CD3 mAb cross-linked on B7-1/CD32-transfected
mouse fibroblasts. We found that IFN-alpha profoundly inhibited in a
dose-dependent manner IL-5 production by resting CD4+ T cells whereas
IL-10 was upregulated in both systems. The addition of a neutralizing
anti-IL-10 mAb to PMA and anti-CD28 mAb upregulated IL-5 production by
resting CD4+ T cells but did not prevent IFN-alpha-induced IL-5
inhibition. We then analyzed the effect of IFN-alpha on the production
of cytokines by differentiated type 2 helper (Th2) CD4+CD3- cells
isolated from peripheral blood of two patients with the
hypereosinophilic syndrome. In both cases, IFN-alpha markedly inhibited
IL-5 production while it induced mild upregulation of IL-4 and IL-10.
Finally, the inhibitory effect of IFN-alpha on IL-5 production was
confirmed on a panel of Th2 and Th0 clones generated in vitro. In 2 out
of 6 clones, IL-5 inhibition was associated with upregulation of IL-4
and IL-10. We conclude that IFN-alpha selectively downregulates IL-5
synthesis by human CD4+ T cells.
DE Animal Antigens, CD28/PHYSIOLOGY Base Sequence CD4-Positive
T-Lymphocytes/*METABOLISM DNA Primers/CHEMISTRY Gene Expression Human
Hypereosinophilic Syndrome/IMMUNOLOGY Interferon Alfa-2b/*PHARMACOLOGY
Interleukin-10/BIOSYNTHESIS Interleukin-4/BIOSYNTHESIS
Interleukin-5/*BIOSYNTHESIS Lymphocyte Transformation Mice Molecular
Sequence Data Platelet Glycoprotein GPIIb-IIIa Complex/ANALYSIS RNA,
Messenger/GENETICS Support, Non-U.S. Gov't Th2 Cells/*METABOLISM
Transfection JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).