Tumor Suppression and Promotion by Autophagy
نویسندگان
چکیده
منابع مشابه
Tumor Suppression and Promotion by Autophagy
Autophagy is a highly regulated catabolic process that involves lysosomal degradation of proteins and organelles, mostly mitochondria, for the maintenance of cellular homeostasis and reduction of metabolic stress. Problems in the execution of this process are linked to different pathological conditions, such as neurodegeneration, aging, and cancer. Many of the proteins that regulate autophagy a...
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Mouse models for cancer are revealing novel cancer-promoting roles for autophagy. Autophagy promotes tumor growth by suppressing the p53 response, maintaining mitochondrial function, sustaining metabolic homeostasis and survival in stress, and preventing diversion of tumor progression to benign oncocytomas.
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Autophagy, a well-described cellular mechanism for lysosomal degradation of cytoplasmic content, has emerged as a tumour suppression pathway. Recent evidence indicates that the tumour suppressor function of autophagy is mediated by scavenging of damaged oxidative organelles, thereby preventing accumulation of toxic oxygen radicals that would cause genome instability. Paradoxically, however, in ...
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Autophagy is considered as a double-edged sword. It can prolong the survival of cancer cells and enhance its resistance to apoptosis, and paradoxically, defective autophagy has been linked to increased tumorigenesis, but the mechanism behind this phenomenon is unclear. In this study, we demonstrated that decreased phosphorylation of signal transducer and activator of transcription 3 (p-STAT3) w...
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ژورنال
عنوان ژورنال: BioMed Research International
سال: 2014
ISSN: 2314-6133,2314-6141
DOI: 10.1155/2014/603980