Topic summary
Parathyroid hormone-related protein
Parathyroid hormone-related protein (PTHrP) is a proteinaceoushormone and a member of the parathyroid hormone family secreted by mesenchymal stem cells. It is occasionally secreted by cancer cells (for example, breast cancer, certain types of lung cancer including squamous-cell lung carcinoma). However, it also has normal functions in bone, teeth, vascular tissues and other tissues.