Genistein induced apoptotic cell death in adult T-cell leukemia cells through estrogen receptors.

Biosci Biotechnol Biochem

Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.

Published: February 2011

Adult T-cell leukemia (ATL) occurs in human T-lymphotropic virus type I-infected individuals and is endemic to the southwestern area of Kyushu in Japan. Here, we found that nM levels of genistein and 17β-estradiol had cytotoxic effects on ATL cells and activated caspase-3. The estrogen receptor antagonist ICI182780 negated the cytotoxic effect of genistein. In addition, G protein-coupled estrogen receptor agonist G-1 also had a cytotoxic effect on ATL cells. This is the first report suggesting that estrogen receptors are a molecular target for ATL therapy.

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http://dx.doi.org/10.1271/bbb.100359DOI Listing

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