Autophagy is an evolutionarily conserved process that degrades cytoplasmic components,thus contributing to cell survival and tissue homeostasis. The progress of autophagy is regulated by many autophagey related genes and signaling pathways. As another marker of tumor,epigenetic modifications perform an extraordinarily vital function in the initiation and progression of tumor by regulating cell apoptosis and autophagy. More recent studies showed that the occurrence and development of autophagy in tumor also ...