Journal
BIOMEDICINE & PHARMACOTHERAPY
Volume 145, Issue -, Pages -Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.biopha.2021.112462
Keywords
Methyl ferulic acid; MiR-378b; Alcoholic liver disease; Insulin resistance; Insulin receptor; P110 alpha
Funding
- National Natural Science Founda-tion of China [81760669, 81860660]
- Guangxi Natural Science Foundation Project of Guangxi Province, China [2017GXNSFAA198259, 2018GXNSFDA281012]
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The study found that MFA enhances insulin sensitivity by decreasing miR-378b levels and increasing IR and p110α expression, thereby combating ALD. Experimental evidence suggests that MFA partially activates the insulin signaling pathway to alleviate alcohol-induced hepatic insulin resistance.
A previous study indicated that microRNA-378b (miR-378b) plays a critical role in controlling hepatic insulin resistance by targeting insulin receptor (IR) and p110 alpha in alcoholic liver disease (ALD). Methyl ferulic acid (MFA), a bioactive ingredient in Securidaca inappendiculata Hassk rhizomes, exhibits multiple pharmacological activities. It has been reported that MFA ameliorates insulin resistance in ALD, whereas the underlying molecular mechanism remains unclear. The objective of study was to evaluate the influence of MFA on insulin sensitivity in ethanol-induced L-02 cells as well as alcohol-fed mice and illuminate the function of miR-378b-mediated phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) pathway in system. MFA was found to remarkably down-regulate miR-378b level and increase IR and p110 alpha expressions. Furthermore, the effect of MFA on modulating miR-378b/PI3K-AKT pathway to enhance insulin sensitivity was corroborated by overexpressing and inhibiting miR-378b. Taken together, MFA exhibited a positive effect against ALD by attenuating the inhibition of miR-378b on IR/p110 alpha and partly activating the insulin signaling to alleviate alcohol-induced hepatic insulin resistance.
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