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Angiotensin‐(1‐7), the product of ACE2 ameliorates NAFLD by acting through its receptor Mas to regulate hepatic mitochondrial function and glycolipid metabolism
The FASEB Journal ( IF 4.8 ) Pub Date : 2020-10-20 , DOI: 10.1096/fj.202001639r
Li‐Ni Song 1 , Jing‐Yi Liu 1 , Ting‐Ting Shi 1 , Yi‐Chen Zhang 1 , Zhong Xin 1 , Xi Cao 1 , Jin‐Kui Yang 1
Affiliation  

Nonalcoholic fatty liver disease (NAFLD) is the most general liver disease characterized by a continuum of liver abnormalities ranging from simple fatty liver to advanced stage of nonalcoholic steatohepatitis, cirrhosis, and even hepatocellular carcinoma. The pathological drivers of NAFLD are complex and largely undefined. It is increasingly identified that the imbalance between renin‐angiotensin system and ACE2/Ang‐(1‐7)/Mas axis, as well as mitochondrial dysfunction associated with NAFLD. However, no known empirical research has focused on exploring the effect of the regulation of mitochondrial respiration chain activity by Ang‐(1‐7)/Mas on the prevention of NAFLD. Here, we evaluated the interaction and relevance of hepatic Ang‐(1‐7)/Mas‐axis challenge with glucolipid metabolism and mitochondrial condition in vivo and in vitro. In this context, we found that Mas deletion in mice contributed to the severe glucose intolerance, insulin resistance, and hepatic steatosis which accompanied by elevated levels of serum/ hepatic alanine aminotransferase, aspartate aminotransferase, and triglycerides, as well as the mitochondrial dysfunction. Whereas forced upregulation of Mas or Ang‐(1‐7) administration could significantly attenuate these consequences by downregulating the expression of hepatic lipogenic proteins and enzymes for gluconeogenesis. Furthermore, activation of Ang‐(1‐7)/Mas arm could improve the IRS‐1/Akt/AMPK pathway and enhance the mitochondrial energy utilization. Considered together, it is becoming extremely hopeful to provide a new perspective for Ang‐(1‐7)/Mas axis for the therapeutics of NAFLD.

中文翻译:

血管紧张素-(1-7),ACE2 的产物通过其受体 Mas 调节肝线粒体功能和糖脂代谢,从而改善 NAFLD

非酒精性脂肪性肝病 (NAFLD) 是最常见的肝脏疾病,其特征是一系列肝脏异常,从简单的脂肪肝到晚期非酒精性脂肪性肝炎、肝硬化,甚至肝细胞癌。NAFLD 的病理驱动因素很复杂,而且在很大程度上是不确定的。人们越来越多地发现肾素-血管紧张素系统与 ACE2/Ang-(1-7)/Mas 轴之间的失衡,以及与 NAFLD 相关的线粒体功能障碍。然而,尚无已知的实证研究专注于探索 Ang-(1-7)/Mas 调节线粒体呼吸链活动对预防 NAFLD 的影响。在这里,我们在体内和体外评估了肝 Ang-(1-7)/Mas-axis 挑战与糖脂代谢和线粒体条件的相互作用和相关性。在这种情况下,我们发现小鼠中的 Mas 缺失导致严重的葡萄糖耐受不良、胰岛素抵抗和肝脂肪变性,伴有血清/肝丙氨酸转氨酶、天冬氨酸转氨酶和甘油三酯水平升高,以及线粒体功能障碍。而强制上调 Mas 或 Ang-(1-7) 给药可以通过下调肝脂肪生成蛋白和糖异生酶的表达来显着减轻这些后果。此外,Ang-(1-7)/Mas 臂的激活可以改善 IRS-1/Akt/AMPK 通路并提高线粒体能量利用。综合考虑,为 NAFLD 治疗提供 Ang-(1-7)/Mas 轴的新视角变得非常有希望。胰岛素抵抗和肝脏脂肪变性,伴有血清/肝脏丙氨酸氨基转移酶、天冬氨酸氨基转移酶和甘油三酯水平升高,以及线粒体功能障碍。而强制上调 Mas 或 Ang-(1-7) 给药可以通过下调肝脂肪生成蛋白和糖异生酶的表达来显着减轻这些后果。此外,Ang-(1-7)/Mas 臂的激活可以改善 IRS-1/Akt/AMPK 通路并提高线粒体能量利用。综合考虑,为 Ang-(1-7)/Mas 轴为 NAFLD 的治疗提供新的视角变得非常有希望。胰岛素抵抗和肝脏脂肪变性,伴有血清/肝脏丙氨酸氨基转移酶、天冬氨酸氨基转移酶和甘油三酯水平升高,以及线粒体功能障碍。而强制上调 Mas 或 Ang-(1-7) 给药可以通过下调肝脂肪生成蛋白和糖异生酶的表达来显着减轻这些后果。此外,Ang-(1-7)/Mas 臂的激活可以改善 IRS-1/Akt/AMPK 通路并提高线粒体能量利用。综合考虑,为 Ang-(1-7)/Mas 轴为 NAFLD 的治疗提供新的视角变得非常有希望。以及线粒体功能障碍。而强制上调 Mas 或 Ang-(1-7) 给药可以通过下调肝脂肪生成蛋白和糖异生酶的表达来显着减轻这些后果。此外,Ang-(1-7)/Mas 臂的激活可以改善 IRS-1/Akt/AMPK 通路并提高线粒体能量利用。综合考虑,为 Ang-(1-7)/Mas 轴为 NAFLD 的治疗提供新的视角变得非常有希望。以及线粒体功能障碍。而强制上调 Mas 或 Ang-(1-7) 给药可以通过下调肝脂肪生成蛋白和糖异生酶的表达来显着减轻这些后果。此外,Ang-(1-7)/Mas 臂的激活可以改善 IRS-1/Akt/AMPK 通路并提高线粒体能量利用。综合考虑,为 NAFLD 治疗提供 Ang-(1-7)/Mas 轴的新视角变得非常有希望。Ang-(1-7)/Mas 臂的激活可以改善 IRS-1/Akt/AMPK 通路并提高线粒体能量利用。综合考虑,为 Ang-(1-7)/Mas 轴为 NAFLD 的治疗提供新的视角变得非常有希望。Ang-(1-7)/Mas 臂的激活可以改善 IRS-1/Akt/AMPK 通路并提高线粒体能量利用。综合考虑,为 Ang-(1-7)/Mas 轴为 NAFLD 的治疗提供新的视角变得非常有希望。
更新日期:2020-10-20
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