Role of PTEN during Pi(4,5)P2 homeostasis and autophagy

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Autophagy, the process of self-eating, is evolutionarily conserved from yeast to mammals. This process leads to the lysosomal degradation of cytosolic components such as organelles, proteins or nucleic acids. Autophagy starts with the formation of a double-membrane sac that expends and forms the autophagosome that can engulf cytosolic components. The autophagosome then fuse with lysosomes that discharge their digestive enzymes to promote cargo degradation. Autophagy regulates the dynamic remodeling of subcellular compartments and participates to the control of several physiological processes such as embryogenesis, response to starvation, anti-tumorigenesis and anti-senescence. Therefore, the understanding of this important process is essential for both fundamental and biomedical research.