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. 2017 Mar 21;8(23):37478–37490. doi: 10.18632/oncotarget.16396

Figure 4. Emodin leads to mitochondrial fragmentation and ROS generation.

Figure 4

(A) Average levels of all mitochondrial proteins of complex I of the electron transport chain as detected by SILAC-based MS (mean values of four different complex I proteins). (B) Western-blots show the decrease of NDUFA10 and NDUFS1 of mitochondrial complex I in all evaluated cells. Actin served as a loading control. (C) NDUFS1 staining in fixed cells exhibits fragmentation of the mitochondrial network. (D) MitoTracker staining of live cells confirms mitochondrial network fragmentation observed in panel (C). (E) DOX pretreatment of cells renders healthy cells more susceptible to emodin, while cancer cells are not significantly affected (mean values of three independent experiments). (F) Western blot anti-NDUFS1, a nuclear encoded protein of respiratory complex I, under emodin treatment after pretreatment with DOX. Actin was used as a loading control. Error bars: standard deviation. Unpaired two-tailed Student's t-test. *: p < 0.05, **: p < 0.01, ***: p < 0.001.