Very recent studies have suggested that circulating RCP levels and the immunohistochemical staining of RCP in biopsy specimens may provide new markers for breast cancer diagnosis and prognosis. Termination of pregnancy has been demonstrated by immuno-neutralization of RCP in monkeys.
This research suggests that measuring circulating RCP levels and the presence of RCP in biopsy samples can be used to diagnose and predict the course of breast cancer. The ability to terminate pregnancy by neutralizing RCP in monkeys highlights the significance of this protein.