Lipofuscin: formation, effects and role of macroautophagy

Oxidative stress plays a crucial role in the development of the aging process and age dependent diseases. Both are closely connected to disturbances of proteostasis by protein oxidation and an impairment of the proteasomal system. The final consequence is the accumulation of highly cross-linked unde...

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Bibliographic Details
Main Authors: Annika Höhn, Tilman Grune
Format: Article
Language:English
Published: Elsevier 2013-01-01
Series:Redox Biology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S221323171300027X
Description
Summary:Oxidative stress plays a crucial role in the development of the aging process and age dependent diseases. Both are closely connected to disturbances of proteostasis by protein oxidation and an impairment of the proteasomal system. The final consequence is the accumulation of highly cross-linked undegradable aggregates such as lipofuscin. These aggregates of damaged proteins are detrimental to normal cell functions. Here we provide an overview about effect of these aggregates on the proteasomal system, followed by transcription factor activation and loss of cell viability. Furthermore, findings on the mechanism of radical genesis, proteasomal inhibition and the required components of lipofuscin formation were resumed.
ISSN:2213-2317