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在急性-慢性肝功能衰竭中,中酶体干细胞调节的miRNA-mRNA景观

Zhi-Hui Li¹, Jun-Yi Wang¹, Xian-Long Li²

¹Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, People's Republic of China; Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, People's Republic of China.

|November 5, 2023

概括

介酶干细胞 (MSC) 治疗有助于急性至慢性肝衰竭 (ACLF),但机制尚不清楚. 这项研究揭示了miR-27a-5p/E2F2轴作为MSCs减少ACLF小鼠肝损伤的关键.

科学领域:

肝病学肝病学是一种肝病学.
干细胞生物学干细胞生物学
分子生物学分子生物学

背景情况:

急性至慢性肝衰竭 (ACLF) 是一个重大的临床挑战.
介质干细胞 (MSC) 疗法对改善ACLF患者的治疗结果显示出希望.
需要进一步阐明MSC介导的ACLF衰减背后的精确分子机制.

研究的目的:

研究MSC治疗的ACLF小鼠肝脏组织中的全球miRNA和mRNA表达特征.
确定关键的信号通路和参与MSC驱动ACLF缓解的分子因素.
阐明MSC减弱ACLF的分子机制.

主要方法:

碳四化物诱导的ACLF小鼠模型用MSC或盐水治疗.
使用下一代测序进行全球miRNA和mRNA表达特征分析.
生物信息分析包括路径丰富,蛋白质-蛋白质相互作用,免疫透和LASSO回归用于枢纽基因识别.

主要成果:

MSC治疗改变了肝脏通路,包括三酸循环和PPAR信号传递.
在MSC治疗后的肝脏透免疫细胞群中观察到显著的变化.
确定了miR-27a-5p/E2F2轴,下调miR-27a-5p和上调E2F2,影响肝细胞增殖和亡.

结论:

这项研究提供了首次对MSC治疗的ACLF肝脏组织进行全面的转录组分析.
肝通路和免疫细胞的全球变化是由ACLF中MSC疗法诱导的.
miR-27a-5p/E2F2轴是MSC介导的ACLF减弱的关键调节器,增强对治疗机制的理解.

关键词:

在ACLF中,ACLF是ACLF.急性-慢性肝功能衰竭肝功能衰竭肝功能衰竭免疫细胞子集是免疫细胞的子集.在MSC中,MSC是MSC.介质细胞干细胞介质细胞干细胞.文字转录学 (Transcriptomics) 是一个学科.这是一个小RNARNA.这是一个miRNA-mRNA网络.

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