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Hepatic TRPC3 loss contributes to chronic alcohol consumption-induced hepatic steatosis and liver injury in mice
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作者 Qinchao Ding Rui Guo +13 位作者 Liuyi Hao Qing Song Ai Fu Shanglei Lai Tiantian Xu Hui Zhuge kaixin chang Yanli Chen Haibin Wei Daxi Ren Zhaoli Sun Zhenyuan Song Xiaobing Dou Songtao Li 《Life Metabolism》 2024年第1期51-66,共16页
Emerging evidence discloses the involvement of calcium channel protein in the pathological process of liver diseases.Transient receptor potential cation channel subfamily C member 3(TRPC3),a ubiquitously expressed non... Emerging evidence discloses the involvement of calcium channel protein in the pathological process of liver diseases.Transient receptor potential cation channel subfamily C member 3(TRPC3),a ubiquitously expressed non-selective cation channel protein,controls proliferation,inflammation,and immune response via operating calcium influx in various organs.However,our understanding on the biofunction of hepatic TRPC3 is still limited.The present study aims to clarify the role and potential mechanism(s)of TRPC3 in alcohol-associated liver disease(ALD).We recently found that TRPC3 expression plays an important role in the disease process of ALD.Alcohol exposure led to a significant reduction of hepatic TRPC3 in patients with alcohol-related hepatitis(AH)and ALD models.Antioxidants(N-acetylcysteine and mitoquinone)intervention improved alcohol-induced suppression of TRPC3 via a miR-339-5p-involved mechanism.TRPC3 loss robustly aggravated the alcohol-induced hepatic steatosis and liver injury in mouse liver;this was associated with the suppression of Ca^(2+)/calmodulin-dependent protein kinase kinase 2(CAMKK2)/AMP-activated protein kinase(AMPK)and dysregulation of genes related to lipid metabolism.TRPC3 loss also enhanced hepatic inflammation and early fibrosis-like change in mice.Replenishing hepatic TRPC3 effectively reversed chronic alcohol-induced detrimental alterations in ALD mice.Briefly,chronic alcohol exposure-induced TRPC3 reduction contributes to the pathological development of ALD via suppression of the CAMKK2/AMPK pathway.Oxidative stress-stimulated miR-339-5p upregulation contributes to alcohol-reduced TRPC3.TRPC3 is the requisite and a potential target to defend alcohol consumption-caused ALD. 展开更多
关键词 TRPC3 alcohol-associated liver disease miR-339-5p hepatic steatosis liver injury CAMKK2/AMPK
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