RGD Reference Report - Autophagy and metabolism. - Rat Genome Database

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Autophagy and metabolism.

Authors: Rabinowitz, Joshua D  White, Eileen 
Citation: Rabinowitz JD and White E, Science. 2010 Dec 3;330(6009):1344-8. doi: 10.1126/science.1193497.
RGD ID: 5130135
Pubmed: PMID:21127245   (View Abstract at PubMed)
PMCID: PMC3010857   (View Article at PubMed Central)
DOI: DOI:10.1126/science.1193497   (Journal Full-text)

Autophagy is a process of self-cannibalization. Cells capture their own cytoplasm and organelles and consume them in lysosomes. The resulting breakdown products are inputs to cellular metabolism, through which they are used to generate energy and to build new proteins and membranes. Autophagy preserves the health of cells and tissues by replacing outdated and damaged cellular components with fresh ones. In starvation, it provides an internal source of nutrients for energy generation and, thus, survival. A powerful promoter of metabolic homeostasis at both the cellular and whole-animal level, autophagy prevents degenerative diseases. It does have a downside, however--cancer cells exploit it to survive in nutrient-poor tumors.


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