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探索大动脉血管光滑肌细胞和大动脉膜间歇细胞中化的分子概况

Julie R Kessler¹, Theresa S Bluemn¹, Samuel A DeCero¹

¹Department of Pediatrics, Section of Pediatric Cardiology, Medical College of Wisconsin, Milwaukee, WI, USA; The Herma Heart Institute, Children's Wisconsin, Milwaukee, WI, USA.

Journal of molecular and cellular cardiology

|August 14, 2023

概括

血管和心脏门中的心血管化在细胞水平上有所不同,尽管临床治疗方法相似. 了解这些不同的途径是开发针对冠状动脉化和动脉膜疾病等疾病的向治疗的关键.

科学领域:

生物化学生物化学
细胞生物学细胞生物学
心血管研究研究心血管研究

背景情况:

心血管化,涉及沉积和矿化,使血管和门变硬,损害功能.
慢性病和高酸血症增加了冠状动脉结石化 (CAC) 和结石性大动脉病 (CAVD) 的风险.
尽管有临床相似之处,血管和膜化可能具有不同的潜在病理生物学.

研究的目的:

研究大动脉血管光滑肌细胞 (AVSMCs) 和大动脉间细胞 (AVICs) 的细胞特异性分子和细胞对高酸血症诱导的化反应的反应.
为了比较高酸血症诱导的化与由骨质原生介质 (OM) 诱导的化.

主要方法:

在试验室中,AVSMC和AVIC暴露于高酸盐 (2.5mM) 或OM.
大量RNA测序用于分析细胞特异性基因表达和信号通路.
检查了细胞反应和骨质生成标志物.

主要成果:

AVSMCs表现出比AVICs更容易发生化.
这两种细胞类型在高酸盐或OM下激活了骨化程序,但具有不同的信号通路,细胞过程和标记物.
与VSMC不同的是,VIC化涉及骨质体差异化和actin细胞骨架基因下调.
在这两种细胞类型中,高酸血症诱导的化独立于PI3K信号传递,与OM诱导的化不同.

结论:

心血管化病原体比以前认可的更为多样化,具有不同的细胞和治疗特异性机制.
这些发现强调了针对血管与膜化进行量身定制的治疗策略的必要性.
这项研究提供了对高酸血症引起的心血管化的分子基础的宝贵见解.

关键词:

大动脉膜间歇细胞间歇细胞大动脉血管光滑肌肉细胞细胞化是一种化过程.心脏门的心脏门血管系统血管系统

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