Apart from its action on the testes and adrenal glands, LH may, at least in part, act directly on prostate cancer cells via LH-specific receptors causing an increase in the expression of several key steroidogenic enzymes including steroidogenic acute regulatory protein (StAR), CYB5B, CYP11A and 3-beta-hydroxysteroid dehydrogenase (3βHSD) [13]. Here, STAR is linked to prostate cancer.