The effect of the PLIN1 gene on the metabolism and mitochondria of porcine skeletal muscle satellite cells,Genes & Genomics

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The effect of the PLIN1 gene on the metabolism and mitochondria of porcine skeletal muscle satellite cells
Genes & Genomics ( IF 1.6 ) Pub Date : 2022-04-19 , DOI: 10.1007/s13258-022-01252-x
Yi Wang ₁ , Yuehan Peng ₁ , Yuefei Yang ₁ , Yuemin Hu ₁ , Hao Wang ₁ , Lei Xu ₁ , Huiming Ju ₁

Affiliation

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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