E protein function in lymphocyte development

被引:158
作者
Quong, MW [1 ]
Romanow, WJ [1 ]
Murre, C [1 ]
机构
[1] Univ Calif San Diego, Div Biol, La Jolla, CA 92093 USA
关键词
E2A; Id; thymocyte; B lymphocyte; helix-loop-helix (HLH);
D O I
10.1146/annurev.immunol.20.092501.162048
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Lymphocytes arise from hematopoietic stem cells through the coordinated action of transcription factors. The E proteins (E12, E47, HEB and E2-2) have emerged as key regulators of both B and T lymphocyte differentiation. This review summarizes the current data and examines the various functions of E proteins and their antagonists, Id2 and Id3, throughout lymphoid maturation. Beyond an established role in B and T lineage commitment, E proteins continue to be essential at subsequent stages of development. E protein activity regulates the expression of surrogate and antigen receptor genes, promotes Ig and TCR rearrangements, and coordinates cell survival and proliferation with developmental progression in response to TCR signaling. Finally, this review also discusses the role of E47 as a tumor suppressor.
引用
收藏
页码:301 / 322
页数:22
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