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2015 ; 2
(1
): e970059
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Connecting autophagy: AMBRA1 and its network of regulation
#MMPMID27308402
Cianfanelli V
; Nazio F
; Cecconi F
Mol Cell Oncol
2015[Jan]; 2
(1
): e970059
PMID27308402
show ga
During autophagy, a double-membraned vesicle called the autophagosome is
responsible for the degradation of long-lived proteins and damaged/old
organelles, thus contributing to the maintenance of cellular homeostasis.
Physiological stimuli and stressors enhance autophagy in order to accomplish
important processes such as cell differentiation or as a cytoprotective response.
In line with this, numerous studies have demonstrated the relevance of proper
autophagy regulation to health. Autophagy defects are associated with the
insurgence of neurological/neurodegenerative diseases and cancer. Moreover, the
autophagy pathway is often potentiated in cancer cells to increase cell survival.
Increased knowledge of the molecular mechanisms underlying autophagy regulation
and their interplay with other cellular pathways would provide advances in cancer
treatment. In this context, post-translational modifications, protein-protein
interactions, and regulative feedback loops offer promising insights. In this
review, we focus on AMBRA1, a proautophagic protein that was recently
demonstrated to participate in numerous crucial regulative mechanisms of the
autophagy process.