Role of Vitamin D in Gynecological Cancer: State of the Art

Vitamin D and Vitamin D Receptors have gained more importance beyond their roles in bone metabolism and calcium homeostasis. Several epidemiological studies have confirmed that vitamin D has a specific function in a wide variety of gynecological cancers, such as ovarian cancer, endometrial cancer, cervical cancer, uterine fibroid, and vulvar cancer. The different anti-cancer mechanisms exerted by vitamin D on tumor cells are cell proliferation, cancer progression, angiogenesis, cell cycle arrest, and inflammation. The role of vitamin D is well emphasized in ovarian cancer and uterine fibroids, with limited studies available on cervical cancer and other types of gynecological cancers. Overall, most epidemiological data support that inadequate or low levels of vitamin D in the circulation are associated with risk and poor prognosis in several types of gynecological cancer. It is evident that vitamin D plays a prominent role as an anticancer agent against numerous types of cancer. This review focuses on the etiology and role of vitamin D and the Vitamin D Receptor in various types of gynecological cancer, as well as the mechanism of Vitamin D and its metabolites in the management of gynecological cancer.