Abstract
Background
Perilipin 1 (PLIN1) is a lipid droplet scaffolding protein that plays a regulatory role in fat decomposition and mitochondrial function.
Objective
In this study, the effects of PLIN1 gene knockout (PLIN1-KO) and PLIN1 gene overexpression (PLIN1-EX) on cell metabolism and mitochondrial function in porcine skeletal muscle satellite cells were assessed.
Methods
Porcine skeletal muscle satellite cells were used as the control group (NC). The expression of mitochondrial function-related proteins was detected by western blot. Apoptosis, cell cycle, mitochondrial function-related indices, mitochondrial structure, and morphology were measured by flow cytometry.
Results
Our results demonstrated that stable expression of the PLIN1 gene in skeletal muscle satellite cells is critical to maintaining cell metabolism and mitochondrial function. After knockout and overexpression of the PLIN1 gene, the anti-apoptotic ability of cells was enhanced, and the metabolic activity of the cells was accelerated, but at the cost of mitochondrial structural damage, reduction in the number of mitochondria, and decreased mitochondrial function.
Conclusion
This study explored the effect of the PLIN1 gene on the mitochondria and metabolism of porcine skeletal muscle satellite cells and provided a theoretical basis for the subsequent study of the effects of PLIN1 on muscle tissue development and meat quality.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (31872323, 31272405), the Natural Science Foundation of Jiangsu (BK20201224), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), and Jiangsu Co-innovation Center for Prevention. We thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.
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HJ, YW, and YP planned the experiments. HW, YY, and YP designed and performed the molecular experiment. HW, YY, and LX designed and performed the cell experiments. HW, YY, and YH performed the data analysis. All authors edited the manuscript.
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Author Yi Wang, author Yuehan Peng, author Yuefei Yang, author Yuemin Hu, author Hao Wang, author Lei Xu and author Huiming Ju declare that they have no conflict of interest.
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Wang, Y., Peng, Y., Yang, Y. et al. The effect of the PLIN1 gene on the metabolism and mitochondria of porcine skeletal muscle satellite cells. Genes Genom 44, 1555–1563 (2022). https://doi.org/10.1007/s13258-022-01252-x
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DOI: https://doi.org/10.1007/s13258-022-01252-x