Research Paper Volume 13, Issue 6 pp 8421—8439

PGC-1α alleviates mitochondrial dysfunction via TFEB-mediated autophagy in cisplatin-induced acute kidney injury

Silencing of TFEB partially abolishes the protective effects of ZLN005 in cisplatin-treated HK2 cells. HK2 cells were transfected with control siRNA (sicon, black column) or TFEB siRNA (sitfeb, white column) for 6 h and treated with cisplatin in the presence or absence of ZLN005 for 48 h. (A) The expression of autophagy-related protein (TFEB, P62 and LC3) was measured by western blotting. (B) The expression of mitochondria-related proteins (ATP5b and Ndufs4) was measured by western blotting. (C) Mitochondrial ROS (mtROS) were measured by incubation with Mito-SOX Red. (D) The expression of apoptosis-related proteins was measured by western blotting. (E) The effects of ZLN005 on cisplatin-induced apoptosis were determined by flow cytometry. (F) ATP levels were measured by using an ATP Assay kit. Data are provided as the mean ± SEM, n=3 independent experiments. *P &P &&P #P ##P tfeb. (Con, control; Zln, ZLN005; Cisp, cisplatin; C+Z, cisplatin + ZLN005).

Figure 8. Silencing of TFEB partially abolishes the protective effects of ZLN005 in cisplatin-treated HK2 cells. HK2 cells were transfected with control siRNA (sicon, black column) or TFEB siRNA (sitfeb, white column) for 6 h and treated with cisplatin in the presence or absence of ZLN005 for 48 h. (A) The expression of autophagy-related protein (TFEB, P62 and LC3) was measured by western blotting. (B) The expression of mitochondria-related proteins (ATP5b and Ndufs4) was measured by western blotting. (C) Mitochondrial ROS (mtROS) were measured by incubation with Mito-SOX Red. (D) The expression of apoptosis-related proteins was measured by western blotting. (E) The effects of ZLN005 on cisplatin-induced apoptosis were determined by flow cytometry. (F) ATP levels were measured by using an ATP Assay kit. Data are provided as the mean ± SEM, n=3 independent experiments. *P < 0.05, **P < 0.01, ***P < 0.001 vs. Con; &P < 0.05, &&P < 0.01 vs. Cisp; #P < 0.05, ##P < 0.01 vs. sitfeb. (Con, control; Zln, ZLN005; Cisp, cisplatin; C+Z, cisplatin + ZLN005).