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Proc Natl Acad Sci U S A. 1992 Mar 1;89(5):1890-3.

Interleukin 10 is a potent growth and differentiation factor for activated human B lymphocytes.

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  • 1Schering-Plough, Laboratory for Immunological Research, Dardilly, France.

Abstract

Interleukin 10 (IL-10), originally identified as a TH2 helper T-cell product able to inhibit cytokine production by TH1 cells, is highly homologous to BCRF1 (viral IL-10), an open reading frame in the Epstein-Barr virus genome. Here, we show that human and viral IL-10 stimulate DNA replication of B lymphocytes activated either via their antigen receptor or via their CD40 antigen. IL-4 and IL-10 display additive effects and induce a strong increase in the number of viable cells. Moreover, IL-10 induces activated B cells to secrete large amounts of IgG, IgA, and IgM, and the combination of IL-10 and IL-4 results in the secretion of the four immunoglobulin isotypes. Thus, IL-10 may play an important role in the amplification of humoral responses.

PMID:
1371884
PMCID:
PMC48559
[PubMed - indexed for MEDLINE]
Free PMC Article
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