期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 376, 期 4, 页码 748-752出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2008.09.070
关键词
TNF alpha; Gene trapping; Recombinase; ZC3H10; GRHL3; Tumor suppressor; Endothelial cells; Migration; Angiogenesis
资金
- Bundesministerium fur Bildung und Forschung
- DFG
Tumor necrosis factor alpha (TNF alpha) is a pleiotropic cytokine involved in apoptotic cell death, cellular proliferation, differentiation, inflammation, and tumorigenesis. In tumors it is secreted by tumor associated macrophages and can have both pro- and anti-tumorigenic effects. To identify genes regulated by TNF alpha, we performed a gene trap screen in the mammary carcinoma cell line MCF-7 and recovered 64 unique, TNF alpha-induced gene trap integration sites. Among these were the genes coding for the zinc finger protein ZC3H10 and for the transcription factor grainyhead-like 3 (GRHL3). In line with the dual effects of TNF alpha on tumorigenesis, we found that ZC3H10 inhibits anchorage independent growth in soft agar suggesting a tumor Suppressor function, whereas GRHL3 strongly stimulated the migration of endothelial cells which is consistent with an angiogenic, pro-tumorigenic function. (C) 2008 Elsevier Inc. All rights reserved.
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