组织蛋白酶K在骨吸收中的作用研究进展

Progress on Action of Cathepsin K in Bone Resorption

组织蛋白酶K(Cathepsin K,CK)是一种溶酶体半胱氨酸蛋白酶,属于番木瓜蛋白酶超家族。在破骨细胞(osteoclast,OC)介导的骨吸收过程中有效降解骨组织中的基质蛋白,在骨吸收过程中发挥重要作用。研究CK在骨吸收中的重要性,为治疗骨代谢疾病开辟了新的途径。论文就组织蛋白酶K的结构和功能及在骨吸收过程中与破骨细胞的相互作用和表达水平的调控机制进行了阐述。

Cathepsin K is one of lysosomal cysteine proteases,belongs to the papaya protease superfamily,highly expressed in the process of bone resorption mediated by osteoclasts and degrade matrix proteins in bone tissue ef-fectively,plays a significant role in the process on bone resorption.Study of the importance of cathepsin k in bone resorption opened up a new approach to metabolic bone disease treatment.In this mini-review,we mainly focused on the structure and function of cathepsin K and the interaction with osteoclast,the regulation mechanisms of ex-pression levels in the process of bone resorption.