期刊
NATURE REVIEWS IMMUNOLOGY
卷 6, 期 3, 页码 218-230出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nri1782
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- Intramural NIH HHS Funding Source: Medline
Mast-cell activation mediated by the high-affinity receptor for IgE (Fc epsilon Rl) is considered to be a key event in the allergic inflammatory response. However, in a physiological setting, other receptors, such as KIT, might also markedly influence the release of mediators by mast cells. Recent studies have provided evidence that Fc epsilon Rl-dependent degranulation is regulated by two complementary signalling pathways, one of which activates phospholipase C. and the other of which activates phosphatidylinositol 3-kinase, using specific transmembrane and cytosolic adaptor molecules. In this Review, we discuss the evidence for these interacting pathways and describe how the capacity of KIT, and other receptors, to influence Fc epsilon Rl-dependent mast-cell-mediator release might be a function of the relative abilities of these receptors to activate these alternative pathways.
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