牛奶外基因组影响转录基因组概况,并在大鼠模型中减少心脏纤维化
Jiajia Hu1,2, Xiaoxu Lu1,2, Jianqin Yan1,2
1Department of Anesthesiology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China.
Scientific reports
|October 8, 2025
概括
牛奶外基因组对心脏纤维化,导致心力衰竭的疾病有治疗潜力. 这项研究确定了关键的基因表达变化,表明了新的治疗点.
科学领域:
- 心血管生物学 心血管生物学
- 细胞外矩阵研究 细胞外矩阵研究
- 外体治疗方法外体治疗方法
背景情况:
- 心脏纤维化,以过度的细胞外基质沉积为特征,是导致心力衰竭的重要因素.
- 了解心脏纤维化背后的分子机制对于开发有效治疗方法至关重要.
研究的目的:
- 研究牛奶外体对心脏纤维化的治疗作用.
- 确定涉及到心脏纤维化外体介导治疗的分子标和调节途径.
主要方法:
- 使用一种因异二醇诱导的心脏纤维化病的老鼠模型.
- 鼠被用口服牛奶外体进行治疗.
- 进行左心室的转录组测序 (mRNA和lncRNA).
- 使用定量实时PCR (RT-qPCR) 进行验证.
- 进行了基因本体学 (GO) 和基因和基因组的京都百科全书 (KEGG) 途径分析.
主要成果:
- 确定了116种差异表达的mRNA (DEMs) 和141种差异表达的lncRNA (DELs).
- 关键的上调基因和lncRNAs,包括Ciart,Cd151,Per2,Per3,H3f3c,Dbp,Tnc和特定的lncRNAs,通过RT-qPCR得到确认.
- GO和KEGG分析显示了昼夜节律和免疫活动途径的丰富.
- 同表达和竞争的内源RNA (ceRNA) 网络表明了潜在的调节机制.
结论:
- 在大鼠模型中,牛奶外体对心脏纤维化有显著的治疗作用.
- 该研究确定了可能作为治疗点的特定差异表达基因和lncRNAs.
- 循环节律和免疫路径与牛奶外体的作用机制有关,用于治疗心脏纤维化.
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