Commentary: Estrogen Receptor Expression in Melanoma.

Sexual hormones share a common cholesterol derived steroid backbone and comprise estrogens, gestagens and androgens. They elicit numerous physiological and pathological functions; e.g. androgens are known to contribute to prostatic cancer development, whereas estrogens are of major importance in the pathogenesis of breast cancer. In 1986, presence of estrogen receptors (ER) on breast cancer cells was described as one of the first biomarkers in oncology [1]. This article is protected by copyright. All rights reserved.