Humoral mechanisms in prostate cancer: A role for FSH.

The natural history of prostate cancer has long been related to the male hormone testosterone, and treatment has focused on depletion of this androgen to slow or prevent growth of prostate cancer tissue. It has become clear recently, however, that more than androgens influence the progression of prostate cancer, with recent interest focusing on the gonadotropin, follicle-stimulating hormone (FSH). Research of the last decade has found that FSH is produced in and FSH receptors are expressed in the prostate. Investigators have found as well that production of FSH is altered in prostate cancer: FSH levels are increased and receptor production raised in the cancerous prostate. It also has been shown that there are endogenous compounds such as prostatic inhibin peptin that can modulate FSH levels. All of these findings are outlined in this paper, and suggest that FSH may affect the pathogenesis and progression of prostate cancer and that altering FSH production may prove to be an active therapeutic maneuver.