循环的ECM蛋白质德科林和α-L-氨基酶区分ATTRwt-CM与ATTRwt负的HFpEF/HFmrEF
Alwin Tubben1,2, George Markousis-Mavrogenis1, Laura M G Meems1
1Department of Cardiology, University Medical Centre Groningen, 9713GZ Groningen, The Netherlands.
Cardiovascular research
|September 17, 2024
概括
野生类型的跨甲基素心脏粉症 (ATTRwt-CM) 具有独特的蛋白质生物标志物概况,不同于心力衰竭,具有保存的射出分数. 迪科林 (DCN) 和α-L-氨基酶 (IDUA) 显示出作为ATTRwt-CM的查生物标志物的潜力.
科学领域:
- 心血管医学 心血管医学
- 生物标志物发现发现
- 蛋白质组学是指蛋白质组学.
背景情况:
- 野生类型的心脏粉症 (ATTRwt-CM) 是心力衰竭 (HF) 的未被确诊的原因.
- 早期发现ATTRwt-CM对于及时干预至关重要.
- 从临床上来说,区分ATTRwt-CM与其他形式的HFpEF/HFmrEF是非常重要的.
研究的目的:
- 识别和验证循环蛋白质生物标志物,使ATTRwt-CM与ATTRwt-负的HFpEF/HFmrEF区分开来.
- 为了比较ATTRwt-CM与轻链氨基粉症心肌病 (AL-CM) 的生物标志物概况.
- 评估已识别的生物标志物的潜力,作为ATTRwt-CM的查工具.
主要方法:
- 使用多重近距离扩展试验测量363种血清蛋白生物标志物的观察性研究.
- 发现队列:73名ATTRwt-CM,55名AL-CM,59名ATTRwt阴性HFpEF/HFmrEF患者.
- 预期验证队列:35名ATTRwt-CM,25名ATTRwt-阴性患者.
- 统计分析包括稀疏的部分最小平方,路径分析和处罚回归.
主要成果:
- ATTRwt-CM和AL-CM显示了重叠的蛋白质甘氨酸和细胞粘附通路的上调,与ATTRwt-负的HFpEF/HFmrEF不同.
- 迪科林 (DCN) 和α-L-氨基酶 (IDUA) 是区分ATTRwt-CM和ATTRwt-阴性患者的关键生物标志物.
- 在验证中,DCN和IDUA显示了中度的区分能力 (AUC分别为0.74和0.78).
- 在对心声学参数进行调整后,DCN仍然显著.
结论:
- 与HFpEF/HFmrEF相比,ATTRwt-CM表现出一个独特的蛋白质分子签名.
- 像DCN和IDUA这样的生物标志物对初始ATTRwt-CM查具有前景.
- 对细胞外矩阵组件的进一步研究是有必要的,以改善ATTRwt-CM检测.
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