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2017 ; 7
(ä): 51
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Autophagy and the Cell Cycle: A Complex Landscape
#MMPMID28409123
Mathiassen SG
; De Zio D
; Cecconi F
Front Oncol
2017[]; 7
(ä): 51
PMID28409123
show ga
Autophagy is a self-degradation pathway, in which cytoplasmic material is
sequestered in double-membrane vesicles and delivered to the lysosome for
degradation. Under basal conditions, autophagy plays a homeostatic function.
However, in response to various stresses, the pathway can be further induced to
mediate cytoprotection. Defective autophagy has been linked to a number of human
pathologies, including neoplastic transformation, even though autophagy can also
sustain the growth of tumor cells in certain contexts. In recent years, a
considerable correlation has emerged between autophagy induction and
stress-related cell-cycle responses, as well as unexpected roles for autophagy
factors and selective autophagic degradation in the process of cell division.
These advances have obvious implications for our understanding of the intricate
relationship between autophagy and cancer. In this review, we will discuss our
current knowledge of the reciprocal regulation connecting the autophagy pathway
and cell-cycle progression. Furthermore, key findings involving nonautophagic
functions for autophagy-related factors in cell-cycle regulation will be
addressed.