期刊
BLOOD CELLS MOLECULES AND DISEASES
卷 43, 期 1, 页码 12-19出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bcmd.2009.01.013
关键词
Runx1; AML1; Mouse; Lymphoma; Myc
类别
资金
- The Leukemia & Lymphoma Society in Provincetown, Massachusetts
- Leukaemia Research Fund
- Cancer Research UK
Runx1 is essential for the homeostatic control of normal hematopoiesis and is required for lymphoid development. Translocations or point mutations that result in RUNX1 loss or disrupted function predispose to leukemia but data derived from model systems suggests that Runx genes can also be pro-oncogenic. Here we investigate the effects of enforced Runx1 expression in lymphoid lineages both in vivo and in vitro and show that transgene expression enhanced cell survival in the thymus and bone marrow but strongly inhibited the expansion of hematopoietic and B cell progenitors in vitro. Despite this, modestly enhanced levels of Runx1 accelerated Myc-induced lymphomagenesis in both the B cell and T cell lineages. Together these data provide formal proof that wild type Runx1 can promote oncogenesis in lymphoid tissues and that, in addition to loss of function, gain of function may have an aetiological role in leukemia. (C) 2009 Elsevier Inc. All rights reserved.
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