蛋白酪氨酸磷酸酶对破骨细胞活性具有重要的调节作用.与破骨细胞相关的,能够使c-Src PY527去磷酸化起到关键作用的PTPs有:SHP-1、胞质PTP-ε、PTP-PEST以及PTP-oc.其中SHP-1对破骨细胞进行负调节,其它三种为正向调节.
Protein -tyrosine phosphatases (PTPs) play an importent role in regulation of osteoclast acitivty. PTPs, that are related to osteoclast and functions on the dephosphorylation of c-Src PY527, include SHP-1, Cyt-PTPs-ε, PTP-PEST, and PTP-oc. SHP-1 is a negative regulator of the osteoclast, while the others are positive regulators.