一个针对性LCMS/MS测定健康监测小组及其对慢性病的应用
Qin Fu1,2, Casey Johnson1, Lesley A Inker3
1Advanced Clinical Biosystems Research Institute, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
bioRxiv : the preprint server for biology
|March 31, 2025
概括
一个新的健康监测小组 (HSP) 试验使用LC-MS量化了60种血蛋白. 这种多重分析准确地检测出与疾病相关的差异,显示出健康与疾病区别的潜力.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 生物标志物发现发现
- 临床化学 临床化学
背景情况:
- 监测人体血蛋白质对于区分健康和疾病至关重要.
- 为了对多种蛋白质进行定量分析,需要强大且可重复的测试.
研究的目的:
- 建立一个多重LC-MS测定方法,用于量化60个循环血蛋白的健康监测小组 (HSP).
- 评估HSP测试在检测疾病相关差异方面的表现.
主要方法:
- 开发了一种用于蛋白质组分析的自动样本准备过程.
- 实施了一个计划的LC-MRM试验,30分钟的梯度和50.5分钟的总运行时间.
- 从117个蛋白型和稳定的同位素标记标准中使用364个转换量化了60种内源蛋白.
主要成果:
- 试验表明,在100倍范围内的线性反应具有一致的峰值面积比率.
- 在一项慢性病 (CKD) 研究中,低度的α-2-抗 плазмин,抗血-III和免疫球蛋白重常数α1与降低的GFR相关 (p <0.05).
结论:
- 在HSP测定准确和可重复量化多个等离子体蛋白质使用高质量的多重复合MRM方法.
- HSP测定显示了检测疾病相关差异的潜力,有助于健康监测.
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