Mitophagy and apoptosis mediated by ROS participate in AlCl3-induced MC3T3-E1 cell dysfunction

• DOI: 10.1016/j.fct.2021.112388
• Publication Date: 2021-07-07T07:05:28Z
• Authors: Menglin Liu; Xia Wu; Yilong Cui; Pengli Liu; Bonan Xiao; Xuliang Zhang; Jian Zhang; Zhuo Sun; Miao Song; Bing Shao; Yanfei Li
• Keywords: 0303 health sciences; Mitophagy; Apoptosis; 16. Peace & justice; Acetylcysteine; Cell Line; Mitochondria; 3. Good health; Mice; Oxidative Stress; 03 medical and health sciences; Aluminum Chloride; Animals; Reactive Oxygen Species

Aluminum (Al), as a common environmental pollutant, causes osteoblast (OB) dysfunction and then leads to Al-related bone diseases (ARBD). One of the mechanisms of ARBD is oxidative stress, which leads to an increase in the production of reactive oxygen species (ROS). ROS can induce mitochondrial damage, thereby inducing mitophagy and apoptosis. But whether mitophagy and apoptosis mediated by ROS, and the role of ROS in AlCl3-induced MC3T3-E1 cell dysfunction is still unclear. In this study, MC3T3-E1 cells used 0 mM Al (control group), 2 mM Al (Al group), 5 mM N-acetyl cysteine (NAC) (NAC group), 2 mM Al and 5 mM NAC (Al + NAC group) for 24 h. We found AlCl3-induced MC3T3-E1 cell dysfunction accompanied by oxidative stress, apoptosis, and mitophagy. While NAC, a ROS scavenger treatment, restored cell function and alleviated the mitophagy and apoptosis. These results suggested that mitophagy and apoptosis mediated by ROS participate in AlCl3-induced MC3T3-E1 cell dysfunction.