Autophagy: cellular and molecular mechanisms

Journal of Pathology - Tập 221 Số 1 - Trang 3-12 - 2010
D.R. Glick1, Sandra Barth1, Kay F. Macleod2
1Ben May Department for Cancer Research, Gordon Center for Integrative Sciences, University of Chicago, IL, USA.
2Committee on Cancer Biology, Gordon Center for Integrative Sciences, University of Chicago, IL, USA

Tóm tắt

AbstractAutophagy is a self‐degradative process that is important for balancing sources of energy at critical times in development and in response to nutrient stress. Autophagy also plays a housekeeping role in removing misfolded or aggregated proteins, clearing damaged organelles, such as mitochondria, endoplasmic reticulum and peroxisomes, as well as eliminating intracellular pathogens. Thus, autophagy is generally thought of as a survival mechanism, although its deregulation has been linked to non‐apoptotic cell death. Autophagy can be either non‐selective or selective in the removal of specific organelles, ribosomes and protein aggregates, although the mechanisms regulating aspects of selective autophagy are not fully worked out. In addition to elimination of intracellular aggregates and damaged organelles, autophagy promotes cellular senescence and cell surface antigen presentation, protects against genome instability and prevents necrosis, giving it a key role in preventing diseases such as cancer, neurodegeneration, cardiomyopathy, diabetes, liver disease, autoimmune diseases and infections. This review summarizes the most up‐to‐date findings on how autophagy is executed and regulated at the molecular level and how its disruption can lead to disease. Copyright © 2010 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.

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Journal of Pathology

Tập 221 Số 1

3-12

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