Abstract:
:Tumor necrosis factor alpha (TNFalpha) 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 TNFalpha, we performed a gene trap screen in the mammary carcinoma cell line MCF-7 and recovered 64 unique, TNFalpha-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 TNFalpha 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.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Guardiola-Serrano F,Haendeler J,Lukosz M,Sturm K,Melchner Hv,Altschmied Jdoi
10.1016/j.bbrc.2008.09.070subject
Has Abstractpub_date
2008-11-28 00:00:00pages
748-52issue
4eissn
0006-291Xissn
1090-2104pii
S0006-291X(08)01827-5journal_volume
376pub_type
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