Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 339, Issue 2, Pages 485-489Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2005.11.044
Keywords
autophagy; lens; erythroid cell; organelle degradation; lysosome
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Autophagy is a bulk degradation system within cells through which cytoplasmic components are degraded within lysosomes. Primary roles of autophagy are starvation adaptation and intracellular protein quality control. In contrast to the ubiquitin-proteasome system, autophagy can also degrade organelles. Here we examined a possible role of autophagy in organelle degradation during lens and erythroid differentiation. We observed that autophagy occurs in embryonic lens cells. However, organelle degradation in lens and erythroid cells occurred normally in autophagy-deficient Atg5(-/-) mice. Our data suggest that degradation system(s) other than autophagy play major roles in organelle degradation during these processes. (c) 2005 Elsevier Inc. All rights reserved.
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