Cited by 45Autophagy in Disease and TherapyMuscle Physiology and DisordersUbiquitin and proteasome pathways

Loss of the novel Vcp (valosin containing protein) interactor Washc4 interferes with autophagy-mediated proteostasis in striated muscle and leads to myopathy in vivo

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Kustermann, Monika, Manta, Linda, Paone, Christoph, Kustermann, Jochen, Lausser, Ludwig, Wiesner, Cora, Eichinger, Ludwig, Clemen, Christoph S. +5 more·2018·Autophagy

Abstract

VCP/p97 (valosin containing protein) is a key regulator of cellular proteostasis. It orchestrates protein turnover and quality control in vivo, processes fundamental for proper cell function. In humans, mutations in VCP lead to severe myo- and neuro-degenerative disorders such as inclusion body myopathy with Paget disease of the bone and frontotemporal dementia (IBMPFD), amyotrophic lateral sclerosis (ALS) or and hereditary spastic paraplegia (HSP). We analyzed here the in vivo role of Vcp and its novel interactor Washc4/Swip (WASH complex subunit 4) in the vertebrate model zebrafish (Danio rerio). We found that targeted inactivation of either Vcp or Washc4, led to progressive impairment of cardiac and skeletal muscle function, structure and cytoarchitecture without interfering with the differentiation of both organ systems. Notably, loss of Vcp resulted in compromised protein degradation via the proteasome and the macroautophagy/autophagy machinery, whereas Washc4 deficiency did not affect the function of the ubiquitin-proteasome system (UPS) but caused ER stress and interfered with autophagy function in vivo. In summary, our findings provide novel insights into the in vivo functions of Vcp and its novel interactor Washc4 and their particular and distinct roles during proteostasis in striated muscle cells.

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Authors
Kustermann, M., Manta, L., Paone, C., Kustermann, J., Lausser, L., Wiesner, C., Eichinger, L., Clemen, C. S., Schröder, R., Kestler, H. A., Sandri, M., Rottbauer, W., & Just, S.
Affiliations
  • Universität Ulm (DE)
  • University of Cologne (DE)
  • Universitätsklinikum Erlangen (DE)
  • University of Padua (IT)
Corresponding author
Just, Steffen
Venue
Autophagy
Published
2018-08-16
Volume
14
Issue
11
Pages
1911-1927
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2884593672
Cited by
45
References
50
Citations by year
2026: 4 · 2024: 6 · 2023: 7 · 2022: 10 · 2021: 8 · 2020: 5 · 2019: 3 · 2018: 2
FWCI
3.51
Type
journal article
Language
en
Open access
Locations
  • Autophagy (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Kölner Universitäts PublikationsServer (Universität zu Köln) (publishedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (RO217¾-1 (WR), RO217¾-2 (WR), JU2859/1–2 (SJ))
  • Ministerium Wissenschaft, Forschung und Kunst Baden-Württemberg (Juniorprofessurenprogramm 2013)
  • German Federal Ministry of Education and Research (e:Med-SYMBOL-HF grant #01ZX1407A)
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
VCP/p97, WASH complex, proteostasis, striated muscle, myopathy, zebrafish, myocardium, skeletal muscle, protein degradation, proteasome, endoplasmic reticulum stress, ubiquitin-proteasome system, hereditary spastic paraplegia, amyotrophic lateral sclerosis
MeSH terms
Valosin Containing Protein, Proteostasis, Animals, Autophagy, Embryo, Nonmammalian, Humans, Male, Muscular Diseases, Protein Binding, Zebrafish, Gene Deletion, Muscle, Skeletal, Zebrafish Proteins, Animals, Genetically Modified, Intracellular Signaling Peptides and Proteins, Mice, Muscle, Striated, HEK293 Cells

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