Jinfei Yang, Li Li, Chenrui Li, Wei Chen, Yan Liu, Shilu Luo, Chanyue Zhao, Yachun Han, Ming Yang, Hao Zhao, Na Jiang, Yiyun Xi, Chengyuan Tang, Juan Cai, Li Xiao, Huafeng Liu, Lin Sun
Autophagy of endoplasmic reticulum (ER-phagy) selectively removes damaged ER through autophagy-lysosome pathway, acting as an adaptive mechanism to alleviate ER stress and restore ER homeostasis. However, the role and precise mechanism of ER-phagy in tubular injury of diabetic kidney disease (DKD) remain obscure. In the present study, we demonstrated that ER-phagy of renal tubular cells was severely impaired in streptozocin (STZ)-induced diabetic mice, with a decreased expression of phosphofurin acidic cluster sorting protein 2 (PACS-2), a membrane trafficking protein which was involved in autophagy, and a reduction of family with sequence similarity 134 member B (FAM134B), one ER-phagy receptor...
October 4, 2023: Cell Death & Disease