Hibiscus manihot leaves Attenuate Accumulation of Lipid Droplets by Activating Lipolysis, Browning and Autophagy, and Inhibiting Proliferation of 3T3-L1 Cells
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In the present study, the effects of HML on lipolysis, adipocyte browning, autophagy, and proliferation were investigated. HML affected lipolysis by increasing the protein levels of ATGL and HSL, and phosphorylation levels of HSL and AMPK. Furthermore, HSL decreased the perilipin-1 levels. In addition, free glycerol content was increased by HML treatment. HML affected adipocyte browning by increasing the protein levels of UCP-1, PGC-1α, and PRDM16. In addition, HML affected autophagy by increasing the levels of LC3-I and LC3-II, and decreasing those of SQSTM1/p62. Moreover, HML affected adipocyte proliferation by suppressing the proliferation of 3T3-L1 cells due to arrest of the cell cycle via blocking the expression of β-catenin and cyclin D1. These results suggest that HML induces lipolysis, adipocyte browning, autophagy, and inhibits excessive proliferation of adipocytes.
Abstract
In the present study, the effects of HML on lipolysis, adipocyte browning, autophagy, and proliferation were investigated. HML affected lipolysis by increasing the protein levels of ATGL and HSL, and phosphorylation levels of HSL and AMPK. Furthermore, HSL decreased the perilipin-1 levels. In addition, free glycerol content was increased by HML treatment. HML affected adipocyte browning by increasing the protein levels of UCP-1, PGC-1α, and PRDM16. In addition, HML affected autophagy by increasing the levels of LC3-I and LC3-II, and decreasing those of SQSTM1/p62. Moreover, HML affected adipocyte proliferation by suppressing the proliferation of 3T3-L1 cells due to arrest of the cell cycle via blocking the expression of β-catenin and cyclin D1. These results suggest that HML induces lipolysis, adipocyte browning, autophagy, and inhibits excessive proliferation of adipocytes.
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