Significance of the Parathyroid Hormone-related Protein Expression in Breast Carcinoma

Background Parathyroid hormone-related protein (PTHrP) is produced by various neoplasms and is known to be a causative factor of hypercalcemia of malignancy. It has also been suggested to act as a cytokine for tumor progression. The purpose of this study was to clarify the significance of PTHrP expression in breast carcinoma.