期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 73, 期 15, 页码 2851-2869出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-016-2178-1
关键词
Unfolded protein response; ER stress; Osteoblast; Chondrocyte; Osteoclast; IRE1 alpha; PERK; ATF6
资金
- MEXT KAKENHI [24390358]
- Grants-in-Aid for Scientific Research [24390358, 16K10836] Funding Source: KAKEN
Osteoblasts and chondrocytes produce a large number of extracellular matrix proteins to generate and maintain the skeletal system. To cope with their functions as secretory cells, these cells must acquire a considerable capacity for protein synthesis and also the machinery for the quality-control and transport of newly synthesized secreted proteins. The unfolded protein response (UPR) plays a crucial role during the differentiation of these cells to achieve this goal. Unexpectedly, however, studies in the past several years have revealed that the UPR has more extensive functions in skeletal development than was initially assumed, and the UPR critically orchestrates many facets of skeletal development and homeostasis. This review focuses on recent findings on the functions of the UPR in the differentiation of osteoblasts, chondrocytes, and osteoclasts. These findings may have a substantial impact on our understanding of bone metabolism and also on establishing treatments for congenital and acquired skeletal disorders.
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