Linbo Chen, Qianping Zhang, Yuanyuan Meng, Tian Zhao, Chenglong Mu, Changying Fu, Caijuan Deng, Jianyu Feng, Siling Du, Wei Liu, Guangfeng Geng, Kaili Ma, Hongcheng Cheng, Qiangqiang Liu, Qian Luo, Jiaojiao Zhang, Zhanqiang Du, Lin Cao, Hui Wang, Yong Liu, Jianping Lin, Guo Chen, Lei Liu, Sin Man Lam, Guanghou Shui, Yushan Zhu, Quan Chen
Ectopic lipid deposition and mitochondrial dysfunction are common etiologies of obesity and metabolic disorders. Excessive dietary uptake of saturated fatty acids (SFAs) causes mitochondrial dysfunction and metabolic disorders, while unsaturated fatty acids (UFAs) counterbalance these detrimental effects. It remains elusive how SFAs and UFAs differentially signal toward mitochondria for mitochondrial performance. We report here that saturated dietary fatty acids such as palmitic acid (PA), but not unsaturated oleic acid (OA), increase lysophosphatidylinositol (LPI) production to impact on the stability of the mitophagy receptor FUNDC1 and on mitochondrial quality...
February 27, 2023: EMBO Reports