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通过液体染色学-同位素稀释质谱法量化血清肌球蛋白的量化

Shutong Huang¹, Dongmei Zhou¹, Liqing Wu²

¹Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.

Analytical and bioanalytical chemistry

|January 9, 2026

概括

一种新方法精确量化人类肌球蛋白 (hMYO),这是急性心肌梗塞的早期生物标志物. 这种使用磁珠提取和LC-IDMS/MS的标准化方法可以改善早期心脏病发作诊断.

科学领域:

生物化学生物化学
分析化学分析化学
临床诊断临床诊断临床诊断

背景情况:

人类肌球蛋白 (hMYO) 是急性心肌梗塞 (AMI) 的关键早期生物标志物.
准确和标准化的hMYO测量对于可靠的临床诊断至关重要.
现有的方法可能缺乏早期和最终AMI诊断所需的精度.

研究的目的:

开发和验证精确的定量方法用于血清hMYO测量.
为改善急性心肌梗塞诊断标准化hMYO量化.
建立一个可靠的临床蛋白质生物标志物量化方法.

主要方法:

使用对hMYO的单克隆抗体进行磁珠提取.
液体染色学-同位素稀释双重质谱学 (LC-IDMS/MS) 用于量化.
优化化,珠子/酶量,以及样品处理的消化时间.

主要成果:

在hMYO量化中,恢复率高 (VR的95.4-101.6%,HGK的100.1-105.5%).
低检测极限 (1.04 ng/g通过VR) 和定量 (3.43 ng/g通过VR).
单克隆抗体对原生和标记的神经蛋白的结合亲和力是可比的.

结论:

开发的LC-IDMS/MS方法提供了精确的血清hMYO量化.
这种方法支持对hMYO.YO的参考材料的开发和临床标准化.
这种方法可以作为基于质谱的蛋白质生物标志物的量化模型.

关键词:

免疫磁性提取免疫磁性提取同位素稀释质谱法质谱学同位素稀释质谱骨髓蛋白质是什么骨髓蛋白质是什么血清的血清是什么意思

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