Journal
TRENDS IN CELL BIOLOGY
Volume 10, Issue 12, Pages 524-530Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S0962-8924(00)01852-3
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Intracellular aim extracellular accumulation of aggregated protein are linked to many diseases, including ageing-related neurodegeneration and systemic amyloidosis. Cells avoid accumulating potentially toxic aggregates by mechanisms including the suppression of aggregate formation by molecular chaperones and the degradation of misfolded proteins by proteasomes. Once formed, aggregates tend to be refractory to proteolysis and to accumulate in inclusion bodies. This accumulation has been assumed to be a diffusion-limited process, but recent studies suggest that, in animal cells, aggregated proteins are specifically delivered to inclusion bodies bodies by dyneindependent retrograde transport on microtubules. This microtubule-dependent inclusion body is called art aggresome.
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