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在低氧诱导的肺高血压 (HPH) 鼠组织中对小型非编码RNA配置文件的全面表征

Jun Wang¹, Jiahao Kuang², Shasha Zhang¹

¹Shenzhen Key Laboratory of Microbial Genetic Engineering, Vascular Disease Research Center, College of Life Sciences and Oceanography, Guangdong Provincial Key Laboratory of Regional Immunity and Disease, Carson International Cancer Center, School of Medicine, Shenzhen University, Shenzhen 518060, China.

|February 7, 2024

概括

小型非编码RNAs (sncRNAs) 在缺氧诱导的肺高血压 (HPH) 中发挥作用. 这项研究对HPH大鼠的sncRNA配置文件进行了表征,揭示了组织特异性和缺氧反应分子,如microRNA和tRNA衍生的小RNA.

科学领域:

心血管生物学心血管生物学
分子生物学分子生物学
基因组学就是基因组学.

背景情况:

缺氧引起的肺高血压 (HPH) 是一种严重的疾病,导致右心室功能障碍和心力衰竭.
了解HPH的发病性对于开发有效的治疗方法至关重要.
小型非编码RNAs (sncRNAs) 正在成为细胞对低氧应激反应的关键调节者.

研究的目的:

在HPH的雄性大鼠模型中,全面分析八种组织的sncRNA配置文件.
识别涉及HPH的组织特异性和低氧反应性sncRNA.
在低氧条件下研究微RNA (miRNA) 和tRNA衍生小RNA (tDR) 种群的变化.

主要方法:

使用高通量测序,对来自雄性HPH大鼠的八种不同的组织中的sncRNA进行了分析.
进行了生物信息分析,以识别和量化各种sncRNA类,包括miRNA,tDR和小核核RNA (snoRNA).
进行了比较分析,以检测组织特异的表达模式和缺氧诱导的sncRNA丰度的改变.

主要成果:

在不同组织中观察到sncRNA丰度的显著变化,大脑,脏和脏分别显示了miRNA,tDR和snoRNA的最高水平.
鉴定了许多组织特异性和低氧反应性sncRNA,其中miRNAs和tDRs的流行率显著.
缺氧条件诱导了miRNA臂切换,并在总tDR群中显著增加了5'tRNA半端的比例.

结论:

这项研究在大鼠HPH的背景下提供了sncRNA配置文件的详细表征.
这些发现突显了组织特异性和低氧反应性sncRNAs,特别是miRNAs和tDRs在HPH病变发生过程中的重要作用.
观察到的miRNA和tDR群体的变化表明它们有可能成为HPH的治疗点.

关键词:

心血管医学心血管医学模型生物模型生物.文字转录学 (Transcriptomics) 是一个学科.

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