Selective estrogen receptor modulators: tissue specificity and clinical utility
Stephen Martinkovich,* Darshan Shah,* Sonia Lobo Planey, John A Arnott
Department of Basic Sciences, The Commonwealth Medical College, Scranton, PA, USA
*These authors contributed equally to this work
Abstract: Selective estrogen receptor modulators (SERMs) are a diverse group of nonsteroidal compounds that function as agonists or antagonists for estrogen receptors (ERs) in a target gene-specific and tissue-specific fashion. SERM specificity involves tissue-specific expression of ER subtypes, differential expression of co-regulatory proteins in various tissues, and varying ER conformational changes induced by ligand binding. To date, the major clinical applications of SERMs are their use in the prevention and treatment of breast cancer, the prevention of osteoporosis, and the maintenance of beneficial serum lipid profiles in postmenopausal women. However, SERMs have also been found to promote adverse effects, including thromboembolic events and, in some cases, carcinogenesis, that have proven to be obstacles in their clinical utility. In this review, we discuss the mechanisms of SERM tissue specificity and highlight the therapeutic application of well-known and emergent SERMs.
Keywords: selective estrogen receptor modulators, SERMs, estrogen receptors
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