Abstract
Protein quality control (PQC) acts to minimize the level and toxicity of malfolded proteins in the cell. It is performed by an elaborate network of molecular chaperones and targeted protein degradation pathways. PQC monitors and maintains protein homeostasis or proteostasis in the cells. Whilst chaperones may actively promote refolding of malfolded proteins, the malfolded proteins which cannot be correctly refolded are degraded by the ubiquitin proteasome system (UPS) and the autophagic-lysosome pathway (ALP). The UPS degrades individual misfolded protein molecules, whereas the ALP removes large and less soluble protein aggregates and organelles. Emerging evidence indicates that dysregulated and inadequate PQC play an important role in the pathogenesis of not only classic conformational disease but more common forms of cardiac pathology such as cardiac pathological hypertrophy and heart failure. Nuclear factor erythroid 2-related factor 2 (Nrf2), a master transcription factor of cellular defense, appears to regulate the USP and the ALP by directly controlling the expression of UPS- and ALP-related genes. This article highlights an emerging role of Nrf2 in the regulation of intracellular PQC as well as its potential involvement in cardiac pathology.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 192-202 |
| Number of pages | 11 |
| Journal | Frontiers in Bioscience - Landmark |
| Volume | 21 |
| Issue number | 1 |
| State | Published - Jan 1 2016 |
| Externally published | Yes |
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Keywords
- Autophagy
- Nuclear factor erythroid-2 related factor 2
- Proteasome
- Protein quality control
ASJC Scopus subject areas
- Medicine(all)
- Immunology and Microbiology(all)
- Biochemistry, Genetics and Molecular Biology(all)
Cite this
Nuclear factor erythroid-2 related factor 2 (Nrf2)-mediated Protein quality control in cardiomyocytes. / Cui, Taixing; Lai, Yimu; Janicki, Joseph S.; Wang, Xuejun.
In: Frontiers in Bioscience - Landmark, Vol. 21, No. 1, 01.01.2016, p. 192-202.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nuclear factor erythroid-2 related factor 2 (Nrf2)-mediated Protein quality control in cardiomyocytes
AU - Cui, Taixing
AU - Lai, Yimu
AU - Janicki, Joseph S.
AU - Wang, Xuejun
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Protein quality control (PQC) acts to minimize the level and toxicity of malfolded proteins in the cell. It is performed by an elaborate network of molecular chaperones and targeted protein degradation pathways. PQC monitors and maintains protein homeostasis or proteostasis in the cells. Whilst chaperones may actively promote refolding of malfolded proteins, the malfolded proteins which cannot be correctly refolded are degraded by the ubiquitin proteasome system (UPS) and the autophagic-lysosome pathway (ALP). The UPS degrades individual misfolded protein molecules, whereas the ALP removes large and less soluble protein aggregates and organelles. Emerging evidence indicates that dysregulated and inadequate PQC play an important role in the pathogenesis of not only classic conformational disease but more common forms of cardiac pathology such as cardiac pathological hypertrophy and heart failure. Nuclear factor erythroid 2-related factor 2 (Nrf2), a master transcription factor of cellular defense, appears to regulate the USP and the ALP by directly controlling the expression of UPS- and ALP-related genes. This article highlights an emerging role of Nrf2 in the regulation of intracellular PQC as well as its potential involvement in cardiac pathology.
AB - Protein quality control (PQC) acts to minimize the level and toxicity of malfolded proteins in the cell. It is performed by an elaborate network of molecular chaperones and targeted protein degradation pathways. PQC monitors and maintains protein homeostasis or proteostasis in the cells. Whilst chaperones may actively promote refolding of malfolded proteins, the malfolded proteins which cannot be correctly refolded are degraded by the ubiquitin proteasome system (UPS) and the autophagic-lysosome pathway (ALP). The UPS degrades individual misfolded protein molecules, whereas the ALP removes large and less soluble protein aggregates and organelles. Emerging evidence indicates that dysregulated and inadequate PQC play an important role in the pathogenesis of not only classic conformational disease but more common forms of cardiac pathology such as cardiac pathological hypertrophy and heart failure. Nuclear factor erythroid 2-related factor 2 (Nrf2), a master transcription factor of cellular defense, appears to regulate the USP and the ALP by directly controlling the expression of UPS- and ALP-related genes. This article highlights an emerging role of Nrf2 in the regulation of intracellular PQC as well as its potential involvement in cardiac pathology.
KW - Autophagy
KW - Nuclear factor erythroid-2 related factor 2
KW - Proteasome
KW - Protein quality control
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M3 - Article
VL - 21
SP - 192
EP - 202
JO - Frontiers in Bioscience - Landmark
JF - Frontiers in Bioscience - Landmark
SN - 1093-9946
IS - 1
ER -