中文摘要：

整合素是一类细胞膜表面跨膜蛋白，在介导细胞黏附并参与细胞内外信号传递的过程中具有重要意义。破骨细胞在骨重建与骨吸收的动态平衡中起关键调控作用，尤其是封闭带中的整合素αvβ3是影响骨吸收的主要黏附分子，对破骨细胞内外Ca2＋及下游信号的调控起关键作用。论文对整合素的结构、分类、功能及其调控破骨细胞相关信号的机制进行了阐述。

英文摘要：

Integrins are cell membrane surface transmembrane receptors that mediate the attachment between a cell and the tissues that surround it. They are involved in cell signaling and the regulation of cell cycle, shape and motility. Osteoclast plays a key role in the dynamic balance of bone remodeling and bone absorption, especially integrin αvβ3 of sealing zone is the major adhesion molecule and has effect on bone resorption and regulation of intraceUular and extracellular Ca2＋ in the osteoclast and downstream signaling. In this mini-review, we mainly focused on narrativing the structure, the classification, the function of integrin and the related signal regulating mechanisms of osteoclast.