Coiling up with SCOC and WAC: two new regulators of starvation-induced autophagy.
Autophagy is a conserved and highly regulated catabolic pathway, transferring cytoplasmic components in autophagosomes to lysosomes for degradation and providing amino acids during starvation. In multicellular organisms autophagy plays an important role for tissue homeostasis, and deregulation of autophagy has been implicated in a broad range of diseases, including cancer and neurodegenerative disorders. In mammals, many aspects of autophagy still need to be fully elucidated: what is the exact hierarchy and relationship between ATG proteins and other factors that lead to the formation and expansion of phagophores? Where does the membrane source for autophagosome formation originate? Which signaling events trigger amino acid starvation-induced autophagy? How are the activities of ULK1/2 and the class III PtdIns3K regulated and linked to each other? To develop therapeutic strategies to manipulate autophagy in human disease, a comprehensive understanding of the molecular protein machinery mediating and regulating autophagy is required.
London Research Institute, Cancer Research UK, London, UK.
Justin
J
Joachim
Martina
M
Wirth
Nicole C
NC
McKnight
Sharon A
SA
Tooze
D048868:Adaptor Proteins, Signal Transducing / Q000378:metabolism*; D000818:Animals; D001343:Autophagy; D017173:Caenorhabditis elegans / Q000378:metabolism; D057809:HEK293 Cells; D006367:HeLa Cells; D006801:Humans; D008565:Membrane Proteins / Q000378:metabolism*; D008954:Models, Biological; D010588:Phagosomes / Q000378:metabolism; D046988:Proteasome Endopeptidase Complex / Q000378:metabolism; D059748:Proteolysis; D015398:Signal Transduction; D013217:Starvation / Q000473:pathology*; D054875:Ubiquitination
D048868:Adaptor Proteins, Signal Transducing; D008565:Membrane Proteins; D046988:Proteasome Endopeptidase Complex