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前庭蛋白质基因分析显示,在CREM-IbΔC-X小鼠中,有持续性心房动的小鼠转向了基因表达程序的转换
Shuai Zhao1, Mohit M Hulsurkar1, Satadru K Lahiri1
1Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX 77030, USA; Department of Integrative Physiology, Baylor College of Medicine, Houston, TX 77030, USA.
Journal of molecular and cellular cardiology
|March 21, 2024
概括
在小鼠中,CREM-IbΔC-X的过度表达会导致年龄相关的心房动 (AF). 蛋白质组分析揭示了关键蛋白质变化,包括益纤维化因素,反映了人类的AF进展,并建议纤维化新的治疗点.
科学领域:
- 心血管生物学 心血管生物学
- 蛋白质组学是指蛋白质组学.
- 生物信息学是一种生物信息学.
背景情况:
- 在转基因小鼠 (CREM-Tg) 中,cAMP反应元素结合调节器 (CREM) 异形CREM-IbΔC-X的过度表达会诱导年龄相关的自发心房动 (AF).
研究的目的:
- 为了识别与持续AF发展相关的蛋白质特征和生物过程.
- 利用综合蛋白质组学和生物信息学进行综合分析.
主要方法:
- 在CREM-Tg和野生型小鼠的心房组织上,基于无偏的质谱的定量蛋白质组学.
- 进行了差异表达,通路丰富和蛋白质-蛋白质相互作用 (PPI) 网络分析.
主要成果:
- 鉴定出98种差异表达的蛋白质,富含actin细胞骨架组织和细胞外矩阵 (ECM) 动力学.
- ITGAV,FBLN5和LCP1与心房纤维化和结构改造有关.
- 从年轻小鼠的离子通道/代谢调节者转移到老小鼠的益纤维素因子,类似于人类的持续性AF.
结论:
- 心房蛋白表达的明显时间变化与CREM-Tg小鼠的渐进性AF相关.
- 已识别的蛋白质可能为控制心房纤维化和AF中的基质发育提供治疗点.
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