Protein Information

ID 425
Name tumor necrosis factor alpha
Synonyms Cachectin; DIF; TNF; TNF alpha; TNF a; TNFA; TNFSF 2; TNFSF2…

Compound Information

ID 813
Name alachlor
CAS

Reference

PubMed Abstract RScore(About this table)
10545406 Burow ME, Tang Y, Collins-Burow BM, Krajewski S, Reed JC, McLachlan JA, Beckman BS: Effects of environmental estrogens on tumor necrosis factor alpha-mediated apoptosis in MCF-7 cells. Carcinogenesis. 1999 Nov;20(11):2057-61.
Environmental estrogens represent a class of compounds which have been shown to mimic the effects or activity of the naturally occurring ovarian hormone 17beta-estradiol. Given the role of 17beta-estradiol in cell survival in a number of systems, we wished to determine if environmental estrogens protect MCF-7 cells from apoptosis. Here we demonstrate that the organochlorine pesticides o, p' DDT and alachlor, like 17beta-estradiol, have the ability to suppress tumor necrosis factor alpha (TNF)-induced apoptosis in estrogen receptor (ER)-positive MCF-7 breast carcinoma cells. These compounds, however, did not affect TNF-induced apoptosis of the ER-negative MDA-MB-231 cell line. The ability of these compounds to suppress apoptosis in MCF-7 cells was correlated with an ER-dependent increase in Bcl-2 expression. Taken together these results demonstrate that estrogenic organochlorine pesticides like o, p' DDT and alachlor may partially mimic the primary endogenous estrogen, 17beta-estradiol, and function to suppress apoptosis in ER-responsive cells.
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