Journal
SEMINARS IN IMMUNOLOGY
Volume 15, Issue 2, Pages 91-97Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/S1044-5323(03)00005-8
Keywords
microenvironment; Notch; T cell development; lymphoid progenitor
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T cells develop in the thymus from blood-borne progenitors derived from haematopoietic tissues. Amongst the mechanisms by which stromal cells in thymic and prethymic tissues influence lymphoid progenitors, recent attention has focussed on the importance of Notch signalling in early T cell development. Here, we review evidence that developing T cells and their progenitors receive signals through Notch receptors as a result of interactions with Notch ligands expressed by stromal cells. In particular, we focus on the role of Notch ligand-expressing stromal cells in regulating key control points during pre- and intrathymic phases of T cell development. (C) 2003 Elsevier Science Ltd. All rights reserved.
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