IRE1-XBP1 Pathway of the Unfolded Protein Response Is Required during Early Differentiation of C2C12 Myoblasts
Abstract
:1. Introduction
2. Results
2.1. IRE1–XBP1 Is Essential for the Myotube Formation in C2C12 Differentiation
2.2. XBP1 Deficiency Perturbs Apoptosis and Autophagy during Early Myogenic Differentiation
2.3. CDK5 Is a Transcriptional Target Gene of XBP1s
3. Discussion
4. Materials and Methods
4.1. Reagents and Antibodies
4.2. Cell Culture
4.3. Establishment of shIRE1- and shXBP1- Transduced Cells
4.4. Quantification of Myotube Formation
4.5. Apoptosis Analysis by Flow Cytometry
4.6. Transmission Electron Microscopy (TEM)
4.7. Immunocytochemistry
4.8. Immunoblotting
4.9. ChIP Assay
4.10. Luciferase Assay
4.11. RNA Extraction, Real-Time PCR Analysis
4.12. Statistical Analysis
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Abbreviations
UPR | Unfolded Protein Response |
IRE1 | Inositol-requiring Enzyme 1 |
XBP1 | X-box Binding Protein 1 |
PERK | Protein Kinase R-like Endoplasmic Reticulum Kinase |
CHOP | C/EBP Homologous Protein |
ATF4 | Activating Transcription Factor 4 |
MyoD | Myogenic Differentiation 1 |
Myf5 | Myogenic Factor 5 |
MRF4 | Myogenic Regulatory Factor 4 |
MEF2C | Myocyte Enhancer Factor 2 |
CDK5 | Cyclin-dependent Kinase 5 |
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Tokutake, Y.; Yamada, K.; Hayashi, S.; Arai, W.; Watanabe, T.; Yonekura, S. IRE1-XBP1 Pathway of the Unfolded Protein Response Is Required during Early Differentiation of C2C12 Myoblasts. Int. J. Mol. Sci. 2020, 21, 182. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21010182
Tokutake Y, Yamada K, Hayashi S, Arai W, Watanabe T, Yonekura S. IRE1-XBP1 Pathway of the Unfolded Protein Response Is Required during Early Differentiation of C2C12 Myoblasts. International Journal of Molecular Sciences. 2020; 21(1):182. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21010182
Chicago/Turabian StyleTokutake, Yukako, Keita Yamada, Satoko Hayashi, Wataru Arai, Takafumi Watanabe, and Shinichi Yonekura. 2020. "IRE1-XBP1 Pathway of the Unfolded Protein Response Is Required during Early Differentiation of C2C12 Myoblasts" International Journal of Molecular Sciences 21, no. 1: 182. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21010182