The effect of palmitate supplementation on gene expression profile in proliferating myoblasts

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Abstract

High-fat diet, exposure to saturated fatty acids, or the presence of adipocytes in myoblast microenvironment affects skeletal muscle growth and function. The aim of the present study was to investigate the effect of palmitate supplementation on transcriptomic profile of mouse C2C12 myoblasts. Global gene expression was evaluated using whole mouse genome oligonucleotide microarrays, and the results were validated through qPCR. A total of 4047 genes were identified as differentially expressed, including 3492 downregulated and 555 upregulated genes, during a 48-h exposure to palmitate (0.1 mmol/l). Functional classification showed the involvement of these genes in several processes which regulate cell growth. In conclusion, the addition of palmitate modifies the expression of genes associated with (1) myoblast responsiveness to hormones and growth factors, (2) cytokine and growth factor expression, and (3) regulation of cell-cell and cell-matrix communication. Such alterations can affect myoblast growth and differentiation; however, further studies in this field are required.

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Grabiec, K., Majewska, A., Wicik, Z., Milewska, M., Błaszczyk, M., & Grzelkowska-Kowalczyk, K. (2016). The effect of palmitate supplementation on gene expression profile in proliferating myoblasts. Cell Biology and Toxicology, 32(3), 185–198. https://doi.org/10.1007/s10565-016-9324-2

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