Abstract
Accumulating evidence suggests that microRNAs (miRNAs) play an important role in regulating the pathways in adipose tissue that control processes such as adipogenesis, insulin resistance, and inflammation. MiR-143 is a well-characterized miRNA involved in adipogenesis and may be involved in regulating insulin resistance. Free fatty acids (FFAs) and adipokines, such as tumor necrosis factor-α (TNF-α), leptin, resistin, and interleukin-6 (IL-6), have already been identified as main regulators of obesity and insulin sensitivity. Therefore, we studied the effects of these inflammatory cytokines on the expression of miR-143. FFAs, resistin, and leptin downregulated miR-143 expression in human adipocytes, whereas TNF-α and IL-6 had little effect on miR-143 expression. These results suggest that the expression of miR-143 is affected by a variety of factors that are related to insulin sensitivity. Therefore, miR-143 may be an important mediator in the development of obesity-related insulin resistance.
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Acknowledgments
This project was supported by grants from the National Key Basic Research Program of China (2013CB530604), the National Natural Science Foundation of China (No. 81100618), the Program for Innovative Research Teams of Jiangsu Province (LJ201108), A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, and Nanjing Technological Development Program (201104013).
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Lingling Zhu and Chunmei Shi contributed equally to this work.
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Zhu, L., Shi, C., Ji, C. et al. FFAs and adipokine-mediated regulation of hsa-miR-143 expression in human adipocytes. Mol Biol Rep 40, 5669–5675 (2013). https://doi.org/10.1007/s11033-013-2668-2
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DOI: https://doi.org/10.1007/s11033-013-2668-2