Journal
ANNUAL REVIEW OF IMMUNOLOGY, VOL 28
Volume 28, Issue -, Pages 343-+Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev.immunol.021908.132719
Keywords
hematopoiesis; lymphopoiesis; lineage commitment
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Funding
- Canadian Institutes of Health Research Funding Source: Medline
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Mammalian genomes encode up to four Notch receptors (Notch1-4) and five Notch ligands of the DSL (Delta/Serrate/Lag-2) family, and Notch signaling controls a wide spectrum of developmental processes. Intrathymic Notch 1 signaling is essential for several distinct aspects of early T cell development. Notch signaling has also been implicated as a key regulator of peripheral T cell activation and effector cell differentiation, but its functions in these processes remain poorly understood. Notch signaling is dispensable for B cell development in the bone marrow, but it is required to generate the innate-like marginal zone B cell subset in the spleen and may also regulate plasma cell functions. Modification of Notch receptors by fringe glycosyltransferases influences many Notch-dependent aspects of hematopoiesis by altering Notch responsiveness to Delta-like versus Jagged DSL ligands. Here we review recent advances in general aspects of Notch signaling, as well as studies probing Notch functions in these immunological processes.
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