ATG7 and leukemia: In the classical autophagy pathway, the key initiation signal is provided by hVPS34/Beclin 1 complex, and the elongation of autophagosome is dependent on ATG7.8 The literature search reveals many studies in which the selection of various autophagy knockdown targets in leukemia cell lines has different effects on differentiation, and the simplest explanation for these findings could be that the role of autophagy in leukemia cell line may be cell type and/or agonist dependent.