I am mainly interested in how membrane lipids play key roles in autophagy, which is accompanied by membrane remodeling. After discovery of autophagy-related (ATG) genes, the molecular machinery of autophagy is becoming clear. However, the roles of membrane lipids are not well understood mainly due to technical difficulties. I would like to redescribe autophagy from lipid aspects by in vitro (liposome reconstitution experiments) and in vivo experiments (using super-resolution microscope). It is known that imbalance in lipid homeostasis can cause autophagy-related diseases. Therefore, I believe that the precise understanding of lipid function in autophagy will be also helpful for understanding the pathogenesis of those diseases.