Myosin VI-Dependent Actin Cages Encapsulate Parkin-Positive Damaged Mitochondria
Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved..
Mitochondrial quality control is essential to maintain cellular homeostasis and is achieved by removing damaged, ubiquitinated mitochondria via Parkin-mediated mitophagy. Here, we demonstrate that MYO6 (myosin VI), a unique myosin that moves toward the minus end of actin filaments, forms a complex with Parkin and is selectively recruited to damaged mitochondria via its ubiquitin-binding domain. This myosin motor initiates the assembly of F-actin cages to encapsulate damaged mitochondria by forming a physical barrier that prevents refusion with neighboring populations. Loss of MYO6 results in an accumulation of mitophagosomes and an increase in mitochondrial mass. In addition, we observe downstream mitochondrial dysfunction manifesting as reduced respiratory capacity and decreased ability to rely on oxidative phosphorylation for energy production. Our work uncovers a crucial step in mitochondrial quality control: the formation of MYO6-dependent actin cages that ensure isolation of damaged mitochondria from the network.
| Errataetall: |
CommentIn: Nat Rev Mol Cell Biol. 2018 Apr;19(4):212. - PMID 29487395 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:44 |
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| Enthalten in: |
Developmental cell - 44(2018), 4 vom: 26. Feb., Seite 484-499.e6 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kruppa, Antonina J [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 29.05.2018 Date Revised 29.01.2022 published: Print-Electronic CommentIn: Nat Rev Mol Cell Biol. 2018 Apr;19(4):212. - PMID 29487395 Citation Status MEDLINE |
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| doi: |
10.1016/j.devcel.2018.01.007 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM280585071 |
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| 520 | |a Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved. | ||
| 520 | |a Mitochondrial quality control is essential to maintain cellular homeostasis and is achieved by removing damaged, ubiquitinated mitochondria via Parkin-mediated mitophagy. Here, we demonstrate that MYO6 (myosin VI), a unique myosin that moves toward the minus end of actin filaments, forms a complex with Parkin and is selectively recruited to damaged mitochondria via its ubiquitin-binding domain. This myosin motor initiates the assembly of F-actin cages to encapsulate damaged mitochondria by forming a physical barrier that prevents refusion with neighboring populations. Loss of MYO6 results in an accumulation of mitophagosomes and an increase in mitochondrial mass. In addition, we observe downstream mitochondrial dysfunction manifesting as reduced respiratory capacity and decreased ability to rely on oxidative phosphorylation for energy production. Our work uncovers a crucial step in mitochondrial quality control: the formation of MYO6-dependent actin cages that ensure isolation of damaged mitochondria from the network | ||
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| 700 | 1 | |a Kishi-Itakura, Chieko |e verfasserin |4 aut | |
| 700 | 1 | |a Masters, Thomas A |e verfasserin |4 aut | |
| 700 | 1 | |a Rorbach, Joanna E |e verfasserin |4 aut | |
| 700 | 1 | |a Grice, Guinevere L |e verfasserin |4 aut | |
| 700 | 1 | |a Kendrick-Jones, John |e verfasserin |4 aut | |
| 700 | 1 | |a Nathan, James A |e verfasserin |4 aut | |
| 700 | 1 | |a Minczuk, Michal |e verfasserin |4 aut | |
| 700 | 1 | |a Buss, Folma |e verfasserin |4 aut | |
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