The aim of the study was the endocrine-pharmacological characterization of xeno- and phytoestrogens. We tested Bisphenol A in the Hershberger Assay. Immunohistochemically we found a stimulation of androgen receptors in the rat prostate. Morphologically there was a significant increase of the epithelial height and the luminal area of the prostate gland. Subsequently, we tested quercetin, rutin, (-)-epigallocatechin-3-gallate and green tea on human prostate cancer cells. Besides quercetin and rutin, (-)-epigallocatechin-3-gallate and green tea showed the strongest antiproliferative activity in cell culture. The next step was to test green tea in a xenograft using immunodeficient nude mice. The comparison of the tumor wet weights of green tea treated animals with the associated control groups displayed nearly a 50% reduction in tumor weights of green tea treated animals. Our studies may have a share in the potential of xeno- and phytoestrogens on the health of the prostate.
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The aim of the study was the endocrine-pharmacological characterization of xeno- and phytoestrogens. We tested Bisphenol A in the Hershberger Assay. Immunohistochemically we found a stimulation of androgen receptors in the rat prostate. Morphologically there was a significant increase of the epithelial height and the luminal area of the prostate gland. Subsequently, we tested quercetin, rutin, (-)-epigallocatechin-3-gallate and green tea on human prostate cancer cells. Besides quercetin and ruti...
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