PT  - JOURNAL ARTICLE
AU  - Rabinowitz, Joshua D.
AU  - White, Eileen
TI  - Autophagy and Metabolism
AID  - 10.1126/science.1193497
DP  - 2010 Dec 03
TA  - Science
PG  - 1344--1348
VI  - 330
IP  - 6009
4099  - http://science.sciencemag.org/content/330/6009/1344.short
4100  - http://science.sciencemag.org/content/330/6009/1344.full
SO  - Science2010 Dec 03; 330
AB  - 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 Autophagy preserves the health of cells and tissues by replacing outdated and damaged cellular components with fresh ones.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.