Regulation of cardiac proteasomes by ubiquitination, SUMOylation, and beyond

Ziyou Cui, Sarah B. Scruggs, Jennifer E. Gilda, Peipei Ping, Aldrin V Gomes

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The ubiquitin-proteasome system (UPS) is the major intracellular degradation system, and its proper function is critical to the health and function of cardiac cells. Alterations in cardiac proteasomes have been linked to several pathological phenotypes, including cardiomyopathies, ischemia-reperfusion injury, heart failure, and hypertrophy. Defects in proteasome-dependent cellular protein homeostasis can be causal for the initiation and progression of certain cardiovascular diseases. Emerging evidence suggests that the UPS can specifically target proteins that govern pathological signaling pathways for degradation, thus altering downstream effectors and disease outcomes. Alterations in UPS-substrate interactions in disease occur, in part, due to direct modifications of 19S, 11S or 20S proteasome subunits. Post-translational modifications (PTMs) are one facet of this proteasomal regulation, with over 400 known phosphorylation sites, over 500 ubiquitination sites and 83 internal lysine acetylation sites, as well as multiple sites for caspase cleavage, glycosylation (such as O-GlcNAc modification), methylation, nitrosylation, oxidation, and SUMOylation. Changes in cardiac proteasome PTMs, which occur in ischemia and cardiomyopathies, are associated with changes in proteasome activity and proteasome assembly; however several features of this regulation remain to be explored. In this review, we focus on how some of the less common PTMs affect proteasome function and alter cellular protein homeostasis. This article is part of a Special Issue entitled "Protein Quality Control, the Ubiquitin Proteasome System, and Autophagy".

Original languageEnglish (US)
Pages (from-to)32-42
Number of pages11
JournalJournal of Molecular and Cellular Cardiology
Volume71
DOIs
StatePublished - 2014

Fingerprint

Sumoylation
Ubiquitination
Proteasome Endopeptidase Complex
Ubiquitin
Post Translational Protein Processing
Cardiomyopathies
Proteins
Homeostasis
Autophagy
Cardiomegaly
Acetylation
Caspases
Reperfusion Injury
Glycosylation
Quality Control
Methylation
Lysine
Cardiovascular Diseases
Ischemia
Heart Failure

Keywords

  • Acetylation
  • Cardiovascular disease
  • Methylation
  • SUMOylation
  • Ubiquitin-proteasome system
  • Ubiquitination

ASJC Scopus subject areas

  • Molecular Biology
  • Cardiology and Cardiovascular Medicine
  • Medicine(all)

Cite this

Regulation of cardiac proteasomes by ubiquitination, SUMOylation, and beyond. / Cui, Ziyou; Scruggs, Sarah B.; Gilda, Jennifer E.; Ping, Peipei; Gomes, Aldrin V.

In: Journal of Molecular and Cellular Cardiology, Vol. 71, 2014, p. 32-42.

Research output: Contribution to journalArticle

Cui, Ziyou ; Scruggs, Sarah B. ; Gilda, Jennifer E. ; Ping, Peipei ; Gomes, Aldrin V. / Regulation of cardiac proteasomes by ubiquitination, SUMOylation, and beyond. In: Journal of Molecular and Cellular Cardiology. 2014 ; Vol. 71. pp. 32-42.
@article{7248ed88546f46239d74636b76a94d4d,
title = "Regulation of cardiac proteasomes by ubiquitination, SUMOylation, and beyond",
abstract = "The ubiquitin-proteasome system (UPS) is the major intracellular degradation system, and its proper function is critical to the health and function of cardiac cells. Alterations in cardiac proteasomes have been linked to several pathological phenotypes, including cardiomyopathies, ischemia-reperfusion injury, heart failure, and hypertrophy. Defects in proteasome-dependent cellular protein homeostasis can be causal for the initiation and progression of certain cardiovascular diseases. Emerging evidence suggests that the UPS can specifically target proteins that govern pathological signaling pathways for degradation, thus altering downstream effectors and disease outcomes. Alterations in UPS-substrate interactions in disease occur, in part, due to direct modifications of 19S, 11S or 20S proteasome subunits. Post-translational modifications (PTMs) are one facet of this proteasomal regulation, with over 400 known phosphorylation sites, over 500 ubiquitination sites and 83 internal lysine acetylation sites, as well as multiple sites for caspase cleavage, glycosylation (such as O-GlcNAc modification), methylation, nitrosylation, oxidation, and SUMOylation. Changes in cardiac proteasome PTMs, which occur in ischemia and cardiomyopathies, are associated with changes in proteasome activity and proteasome assembly; however several features of this regulation remain to be explored. In this review, we focus on how some of the less common PTMs affect proteasome function and alter cellular protein homeostasis. This article is part of a Special Issue entitled {"}Protein Quality Control, the Ubiquitin Proteasome System, and Autophagy{"}.",
keywords = "Acetylation, Cardiovascular disease, Methylation, SUMOylation, Ubiquitin-proteasome system, Ubiquitination",
author = "Ziyou Cui and Scruggs, {Sarah B.} and Gilda, {Jennifer E.} and Peipei Ping and Gomes, {Aldrin V}",
year = "2014",
doi = "10.1016/j.yjmcc.2013.10.008",
language = "English (US)",
volume = "71",
pages = "32--42",
journal = "Journal of Molecular and Cellular Cardiology",
issn = "0022-2828",
publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Regulation of cardiac proteasomes by ubiquitination, SUMOylation, and beyond

AU - Cui, Ziyou

AU - Scruggs, Sarah B.

AU - Gilda, Jennifer E.

AU - Ping, Peipei

AU - Gomes, Aldrin V

PY - 2014

Y1 - 2014

N2 - The ubiquitin-proteasome system (UPS) is the major intracellular degradation system, and its proper function is critical to the health and function of cardiac cells. Alterations in cardiac proteasomes have been linked to several pathological phenotypes, including cardiomyopathies, ischemia-reperfusion injury, heart failure, and hypertrophy. Defects in proteasome-dependent cellular protein homeostasis can be causal for the initiation and progression of certain cardiovascular diseases. Emerging evidence suggests that the UPS can specifically target proteins that govern pathological signaling pathways for degradation, thus altering downstream effectors and disease outcomes. Alterations in UPS-substrate interactions in disease occur, in part, due to direct modifications of 19S, 11S or 20S proteasome subunits. Post-translational modifications (PTMs) are one facet of this proteasomal regulation, with over 400 known phosphorylation sites, over 500 ubiquitination sites and 83 internal lysine acetylation sites, as well as multiple sites for caspase cleavage, glycosylation (such as O-GlcNAc modification), methylation, nitrosylation, oxidation, and SUMOylation. Changes in cardiac proteasome PTMs, which occur in ischemia and cardiomyopathies, are associated with changes in proteasome activity and proteasome assembly; however several features of this regulation remain to be explored. In this review, we focus on how some of the less common PTMs affect proteasome function and alter cellular protein homeostasis. This article is part of a Special Issue entitled "Protein Quality Control, the Ubiquitin Proteasome System, and Autophagy".

AB - The ubiquitin-proteasome system (UPS) is the major intracellular degradation system, and its proper function is critical to the health and function of cardiac cells. Alterations in cardiac proteasomes have been linked to several pathological phenotypes, including cardiomyopathies, ischemia-reperfusion injury, heart failure, and hypertrophy. Defects in proteasome-dependent cellular protein homeostasis can be causal for the initiation and progression of certain cardiovascular diseases. Emerging evidence suggests that the UPS can specifically target proteins that govern pathological signaling pathways for degradation, thus altering downstream effectors and disease outcomes. Alterations in UPS-substrate interactions in disease occur, in part, due to direct modifications of 19S, 11S or 20S proteasome subunits. Post-translational modifications (PTMs) are one facet of this proteasomal regulation, with over 400 known phosphorylation sites, over 500 ubiquitination sites and 83 internal lysine acetylation sites, as well as multiple sites for caspase cleavage, glycosylation (such as O-GlcNAc modification), methylation, nitrosylation, oxidation, and SUMOylation. Changes in cardiac proteasome PTMs, which occur in ischemia and cardiomyopathies, are associated with changes in proteasome activity and proteasome assembly; however several features of this regulation remain to be explored. In this review, we focus on how some of the less common PTMs affect proteasome function and alter cellular protein homeostasis. This article is part of a Special Issue entitled "Protein Quality Control, the Ubiquitin Proteasome System, and Autophagy".

KW - Acetylation

KW - Cardiovascular disease

KW - Methylation

KW - SUMOylation

KW - Ubiquitin-proteasome system

KW - Ubiquitination

UR - http://www.scopus.com/inward/record.url?scp=84899928291&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84899928291&partnerID=8YFLogxK

U2 - 10.1016/j.yjmcc.2013.10.008

DO - 10.1016/j.yjmcc.2013.10.008

M3 - Article

C2 - 24140722

AN - SCOPUS:84899928291

VL - 71

SP - 32

EP - 42

JO - Journal of Molecular and Cellular Cardiology

JF - Journal of Molecular and Cellular Cardiology

SN - 0022-2828

ER -