The Role of Autophagy and Mitophagy in Huntington’s Disease

Huntington’s disease (HD) is an inherited autosomal-dominant neurodegenerative disorder that occurs due to mutations in the polyglutamine expansions of the Huntingtin protein (Htt). HD is characterised by the loss of cognitive and motor functions, as well as the development of emotional and psychiat...

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Main Authors: Akhila Eswaran, Crystale Siew Ying Lim, Soi Moi Chye, Anna Pick Kiong Ling, Rhun Yian Koh
Format: Article
Language:English
Published: Academy of Sciences Malaysia 2021-12-01
Series:ASM Science Journal
Subjects:
Online Access:https://doi.org/10.32802/asmscj.2021.911
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author Akhila Eswaran
Crystale Siew Ying Lim
Soi Moi Chye
Anna Pick Kiong Ling
Rhun Yian Koh
author_facet Akhila Eswaran
Crystale Siew Ying Lim
Soi Moi Chye
Anna Pick Kiong Ling
Rhun Yian Koh
author_sort Akhila Eswaran
collection DOAJ
description Huntington’s disease (HD) is an inherited autosomal-dominant neurodegenerative disorder that occurs due to mutations in the polyglutamine expansions of the Huntingtin protein (Htt). HD is characterised by the loss of cognitive and motor functions, as well as the development of emotional and psychiatric disturbances. The HD pathology is manifested through the cellular changes that arise due to the toxic functions of mutant Htt (mHtt). Autophagy is a lysosomal pathway that functions to remove damaged intracellular components while mitophagy is a selective form of autophagy involving mitochondria; and PINK1/Parkin-mediated mitophagy is the most well-understood pathway. Mitochondrial dysfunction and defects in mitophagy can be linked to the pathogenesis of HD. Previous research has shown that the presence of mHtt hinders mitophagy; while PINK1/Parkin-mediated mitophagy provides neuroprotection in HD. Hence, this review discusses the roles and regulations of mitophagy, along with an overview of mitophagy in HD.
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spelling doaj.art-186485b294894cda910de1730d79d7b12023-02-22T04:16:34ZengAcademy of Sciences MalaysiaASM Science Journal1823-67822021-12-011611010.32802/asmscj.2021.911911The Role of Autophagy and Mitophagy in Huntington’s DiseaseAkhila EswaranCrystale Siew Ying LimSoi Moi ChyeAnna Pick Kiong LingRhun Yian KohHuntington’s disease (HD) is an inherited autosomal-dominant neurodegenerative disorder that occurs due to mutations in the polyglutamine expansions of the Huntingtin protein (Htt). HD is characterised by the loss of cognitive and motor functions, as well as the development of emotional and psychiatric disturbances. The HD pathology is manifested through the cellular changes that arise due to the toxic functions of mutant Htt (mHtt). Autophagy is a lysosomal pathway that functions to remove damaged intracellular components while mitophagy is a selective form of autophagy involving mitochondria; and PINK1/Parkin-mediated mitophagy is the most well-understood pathway. Mitochondrial dysfunction and defects in mitophagy can be linked to the pathogenesis of HD. Previous research has shown that the presence of mHtt hinders mitophagy; while PINK1/Parkin-mediated mitophagy provides neuroprotection in HD. Hence, this review discusses the roles and regulations of mitophagy, along with an overview of mitophagy in HD.https://doi.org/10.32802/asmscj.2021.911huntington’s diseaseautophagymitophagy
spellingShingle Akhila Eswaran
Crystale Siew Ying Lim
Soi Moi Chye
Anna Pick Kiong Ling
Rhun Yian Koh
The Role of Autophagy and Mitophagy in Huntington’s Disease
ASM Science Journal
huntington’s disease
autophagy
mitophagy
title The Role of Autophagy and Mitophagy in Huntington’s Disease
title_full The Role of Autophagy and Mitophagy in Huntington’s Disease
title_fullStr The Role of Autophagy and Mitophagy in Huntington’s Disease
title_full_unstemmed The Role of Autophagy and Mitophagy in Huntington’s Disease
title_short The Role of Autophagy and Mitophagy in Huntington’s Disease
title_sort role of autophagy and mitophagy in huntington s disease
topic huntington’s disease
autophagy
mitophagy
url https://doi.org/10.32802/asmscj.2021.911
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