通过与SERCA相互作用,CBP/CREB调节心肌细胞的增殖和亡
Yiran Zhouguo1, Zhiyong Yuan2, Mannan Abdul3
1Xuzhou Medical University, Xuzhou, China.
Journal of cellular and molecular medicine
|February 19, 2025
概括
cAMP反应元素结合蛋白 (CREB) -结合蛋白 (CBP) 的上调与法洛特四分法 (TOF) 有关. CBP与/内质网膜Ca2+-ATPase (SERCA) 相互作用,以调节TOF.中的细胞增殖和细胞亡.
科学领域:
- 心血管生物学 心血管生物学
- 分子心脏病学分子心脏病学
- 遗传性心脏病研究 遗传性心脏病研究
背景情况:
- 费洛特四重症 (TOF) 是一种普遍存在的先天性心脏缺陷.
- 在TOF病原体的基础上存在的分子机制需要进一步阐明.
- 在TOF中cAMP反应元素结合蛋白 (CREB) -结合蛋白 (CBP) 的作用尚不清楚.
研究的目的:
- 研究CBP在调节TOF细胞增殖和细胞亡中的作用.
- 在TOF的背景下,探索CBP与/内细胞网膜Ca2+-ATPase (SERCA) 之间的相互作用.
- 确定涉及CBP和SERCA在TOF发展中的分子途径.
主要方法:
- 从TOF患者和健康捐赠者的右心室组织分析.
- 技术包括免疫组织化学 (IHC),免疫光学 (IF),RT-qPCR,西部斑点 (WB) 和染色体免疫沉 (ChIP).
- 细胞测试涉及CBP在AC16细胞中的淘汰,Edu染色,细胞周期分析和CCK-8活力测试.
主要成果:
- 与健康个体相比,TOF患者的CBP和SERCA表达显著增加.
- 在AC16细胞中,CBP的淘汰导致了细胞增殖和细胞周期进展的增加.
- CREB与SERCA促进体结合,而CBP的缩量在CREB被淘汰后下降,这表明了监管相互作用.
结论:
- CBP与SERCA相互作用,调节心脏发育中的细胞增殖和细胞亡.
- 对CBP的上调被认为是导致Fallot四分法发展的一个因素.
- 这些发现突出了TOF病变发生的新型分子机制,涉及CBP-SERCA轴.
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