Endocrine Abstracts

Sex Hormone-Binding Globulin (SHBG), the specific plasma carrier for sex steroids, interacts with cell membranes. In breast cancer cells, SHBG-cell interaction is closely related to estrogen-sensitivity and it is followed by a well-defined cascade of events. Soon after SHBG binding to cell membranes, cAMP accumulates in the breast cancer cells, activates PKA that in turn suppresses estradiol-induced ERK activation. ERK inhibition abolishes the anti-apoptotic effects of estradi...