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Cited by 526

The DOI matches its Crossref record; 241 of the 241 references it cites were found in a registry or an index.

Mechanisms of mitochondrial dysfunction and their impact on age-related macular degeneration

Open access
Kaarniranta, Kai, Uusitalo, Hannu, Blasiak, Janusz, Felszeghy, Szabolcs, Kannan, Ram, Kauppinen, Anu, Salminen, Antero, Sinha, Debasish, Ferrington, Deborah·2020·Progress in Retinal and Eye Research

Abstract

Oxidative stress-induced damage to the retinal pigment epithelium (RPE) is considered to be a key factor in age-related macular degeneration (AMD) pathology. RPE cells are constantly exposed to oxidative stress that may lead to the accumulation of damaged cellular proteins, lipids, nucleic acids, and cellular organelles, including mitochondria. The ubiquitin-proteasome and the lysosomal/autophagy pathways are the two major proteolytic systems to remove damaged proteins and organelles. There is increasing evidence that proteostasis is disturbed in RPE as evidenced by lysosomal lipofuscin and extracellular drusen accumulation in AMD. Nuclear factor-erythroid 2-related factor-2 (NFE2L2) and peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) are master transcription factors in the regulation of antioxidant enzymes, clearance systems, and biogenesis of mitochondria. The precise cause of RPE degeneration and the onset and progression of AMD are not fully understood. However, mitochondria dysfunction, increased reactive oxygen species (ROS) production, and mitochondrial DNA (mtDNA) damage are observed together with increased protein aggregation and inflammation in AMD. In contrast, functional mitochondria prevent RPE cells damage and suppress inflammation. Here, we will discuss the role of mitochondria in RPE degeneration and AMD pathology focused on mtDNA damage and repair, autophagy/mitophagy signaling, and regulation of inflammation. Mitochondria are putative therapeutic targets to prevent or treat AMD.

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Metadata

Authors
Kaarniranta, K., Uusitalo, H., Blasiak, J., Felszeghy, S., Kannan, R., Kauppinen, A., Salminen, A., Sinha, D., & Ferrington, D.
Venue
Progress in Retinal and Eye Research
Publisher
Elsevier BV
Published
2020-11
Volume
79
Pages
100858
ISSN
1350-9462 (ISSN-L)
OpenAlex
W3016688264
Cited by
526
References
241
FWCI
40.18
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Mechanisms of mitochondrial dysfunction and their impact on age-related macular degeneration. https://app.cochat.ai/papers/10.1016/j.preteyeres.2020.100858
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Kaarniranta, K., Uusitalo, H., Blasiak, J., Felszeghy, S., Kannan, R., Kauppinen, A., Salminen, A., Sinha, D., & Ferrington, D. (2020). Mechanisms of mitochondrial dysfunction and their impact on age-related macular degeneration. Progress in Retinal and Eye Research. https://doi.org/10.1016/j.preteyeres.2020.100858

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