Osteoprotegerin: multiple partners for multiple functions.

Osteoprotegerin (OPG) is an essential secreted protein in bone turnover due to its role as a decoy receptor for the Receptor Activator of Nuclear Factor-kB ligand (RANKL) in the osteoclasts, thus inhibiting their differentiation. However, there are additional ligands of OPG that confer various biological functions. OPG can promote cell survival, cell proliferation and facilitates migration by binding TNF-related apoptosis inducing ligand (TRAIL), glycosaminoglycans or proteoglycans. A large number of in vitro, pre-clinical and clinical studies provide evidences of OPG involvement in vascular, bone, immune and tumor biology. This review describes an overview of the different OPG ligands regu…

MP-03.04 The Combination Treatment of Bicalutamide Plus Carbidopa Significantly Enhances the in vivo Antitumor Activity on LNCaP Castration-resistant Prostate Cancer Xenograft Tumors Compared To Single Use of Each Drug

Systemic treatment of bone metastases in castration-resistant prostate cancer (CRPC): pre-clinical to clinical point of view

Abstract Prostate cancer (PCa) is the most common cancer and the third most common cause of cancer related mortality in men in the United States. Hormonal therapy remains the most effective therapy for patients with advanced prostate cancer, inhibiting proliferation and inducing apoptosis in tumor cells. Unfortunately, after short-term remissions (18–24 months), surviving tumor cells recur with castrate resistant prostate cancer (CRPC) with inevitable progression, development of metastases mainly in bone, and death within 2–3 years in most men. Improved understanding of the molecular basis underlying bone-specific metastases and resistance to ADT or chemotherapy will facilitate the rational…