| Literature DB >> 3262706 |
J M Purkerson1, M Newberg, G Wise, K R Lynch, P C Isakson.
Abstract
We have analyzed requirements for IL-4-induced secretion of IgG1 from anti-Ig-activated B cells. Activated B cell blasts prepared by culture of high density B cells with anti-Ig failed to secrete IgG1 upon subsequent culture with LPS and IL-4. However, IL-4 markedly suppressed IgM secretion in the same cultures. Addition of a mixture of T cell-derived lymphokines or rIL-5 to LPS-stimulated anti-Ig blasts restored IL-4-stimulated IgG1 secretion; rIL-2 further enhanced the response to IL-4 + rIL-5. These results suggest that IL-4, IL-5, and IL-2 cooperate in the regulation of B lymphocyte Ig isotype expression.Entities:
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Year: 1988 PMID: 3262706 PMCID: PMC2189019 DOI: 10.1084/jem.168.3.1175
Source DB: PubMed Journal: J Exp Med ISSN: 0022-1007 Impact factor: 14.307