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HDAC1 overexpression promoted by METTL3-IGF2BP2 inhibits FGF21 expression in metabolic syndrome-related liver injury.
Biochemistry and Cell Biology ( IF 2.9 ) Pub Date : 2022-12-21 , DOI: 10.1139/bcb-2022-0314
Yunjiang Chen 1 , Kaiyu Cai 1 , Yueling Du 1 , Zixiong Liu 1 , Yanchun Gong 1
Affiliation  

Metabolic syndrome (MetS) represents a cluster of diseases that includes diabetes and insulin resistance. A combination of these metabolic disorders damages liver function. We hypothesized here that histone deacetylase 1 (HDAC1) inhibits fibroblast growth factor 21 (FGF21) expression through histone deacetylation, thereby accentuating liver injury in rats with MetS. MetS rats induced by a high-fat diet were monitored weekly for blood pressure and body weight measurement. The changes of hepatic injury parameters were also measured. The pathological changes in the liver were observed by HE staining and oil red O staining. We found that HDAC1 was increased in the liver of rats with MetS, while sh-HDAC1 reduced blood pressure, body weight, and hepatic injury parameters. Improvement of structural pathological alterations and reduction of lipid deposition were observed after HDAC1 inhibition. Notably, HDAC1 inhibited FGF21 expression through histone deacetylation. The hepatoprotective effects of sh-HDAC1 on rats were reversed by adenovirus-mediated knockdown of FGF21. Moreover, methyltransferase-like 3 (METTL3) mediated the N6-methyladenosine (m6A) modification of HDAC1 mRNA and increased its binding to IGF2BP2. Consistently, sh-METTL3 inhibited HDAC1 and increased FGF21 expression, thereby ameliorating liver injury in MetS rats. This study discovered that HDAC1 is capable of managing liver injury in MetS. Targeting HDAC1 may be an optimal treatment for MetS-related liver injury.

中文翻译:

METTL3-IGF2BP2 促进的 HDAC1 过表达抑制代谢综合征相关肝损伤中的 FGF21 表达。

代谢综合征 (MetS) 代表一组疾病,包括糖尿病和胰岛素抵抗。这些代谢紊乱的组合会损害肝功能。我们在此假设组蛋白去乙酰化酶 1 (HDAC1) 通过组蛋白去乙酰化抑制成纤维细胞生长因子 21 (FGF21) 的表达,从而加重 MetS 大鼠的肝损伤。每周监测由高脂肪饮食诱导的 MetS 大鼠的血压和体重。还测量了肝损伤参数的变化。HE染色和油红O染色观察肝脏病理变化。我们发现 HDAC1 在 MetS 大鼠的肝脏中增加,而 sh-HDAC1 降低血压、体重和肝损伤参数。HDAC1 抑制后观察到结构病理改变的改善和脂质沉积的减少。值得注意的是,HDAC1 通过组蛋白去乙酰化抑制 FGF21 的表达。腺病毒介导的 FGF21 敲低逆转了 sh-HDAC1 对大鼠的保肝作用。此外,甲基转移酶样 3 (METTL3) 介导 HDAC1 mRNA 的 N6-甲基腺苷 (m6A) 修饰并增加其与 IGF2BP2 的结合。一致地,sh-METTL3 抑制 HDAC1 并增加 FGF21 表达,从而改善 MetS 大鼠的肝损伤。该研究发现 HDAC1 能够控制 MetS 中的肝损伤。靶向 HDAC1 可能是 MetS 相关肝损伤的最佳治疗方法。腺病毒介导的 FGF21 敲低逆转了 sh-HDAC1 对大鼠的保肝作用。此外,甲基转移酶样 3 (METTL3) 介导 HDAC1 mRNA 的 N6-甲基腺苷 (m6A) 修饰并增加其与 IGF2BP2 的结合。一致地,sh-METTL3 抑制 HDAC1 并增加 FGF21 表达,从而改善 MetS 大鼠的肝损伤。该研究发现 HDAC1 能够控制 MetS 中的肝损伤。靶向 HDAC1 可能是 MetS 相关肝损伤的最佳治疗方法。腺病毒介导的 FGF21 敲低逆转了 sh-HDAC1 对大鼠的保肝作用。此外,甲基转移酶样 3 (METTL3) 介导 HDAC1 mRNA 的 N6-甲基腺苷 (m6A) 修饰并增加其与 IGF2BP2 的结合。一致地,sh-METTL3 抑制 HDAC1 并增加 FGF21 表达,从而改善 MetS 大鼠的肝损伤。该研究发现 HDAC1 能够控制 MetS 中的肝损伤。靶向 HDAC1 可能是 MetS 相关肝损伤的最佳治疗方法。从而改善 MetS 大鼠的肝损伤。该研究发现 HDAC1 能够控制 MetS 中的肝损伤。靶向 HDAC1 可能是 MetS 相关肝损伤的最佳治疗方法。从而改善 MetS 大鼠的肝损伤。该研究发现 HDAC1 能够控制 MetS 中的肝损伤。靶向 HDAC1 可能是 MetS 相关肝损伤的最佳治疗方法。
更新日期:2022-12-21
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