Research Article

ROS Induced by KillerRed Targeting Mitochondria (mtKR) Enhances Apoptosis Caused by Radiation via Cyt c/Caspase-3 Pathway

Figure 4

Mitochondrial dysfunctions caused by mtKR-induced ROS and X-rays. (a) The changes of Na+-K+ and Ca2+-Mg2+ ATPase activities and ATP content by biochemical assay after light exposure and irradiation. (b) The FCM pictures of Δψm. HeLa cells were stained by Rh123, followed by FCM analysis of the Δψm. (c) Western blot analysis was performed to determine the protein levels of VDAC1 in total and mitochondrial protein. GAPDH and HSP60 proteins were used for loading control. (d) From top to bottom, the gray ratios of VDAC1/GAPDH and VDAC1/HSP60. The bars represent the of triplicate measurements. versus control; versus 4 Gy irradiation, and versus light exposure.
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