timsTOF HT 提高了蛋白质识别和定量复制性,用于深度无偏见的血蛋白生物标志物发现
Dijana Vitko1, Wan-Fang Chou1, Sara Nouri Golmaei1
1PrognomiQ Inc., 1900 Alameda de las Pulgas, San Mateo, California 94403, United States.
Journal of proteome research
|January 15, 2024
概括
timsTOF HT质谱仪通过识别比timsTOF Pro 2更多的前体,显著提高了血蛋白质组概况和疾病生物标志物发现,特别是与Proteograph样本制备相结合时.
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
- 质谱测量质量谱测量
背景情况:
- 血蛋白质组分析对于疾病生物标志物发现至关重要.
- 蛋白质度的高变化和技术挑战阻碍了深度蛋白质定量.
- 需要先进的质谱技术来克服这些局限性.
研究的目的:
- 评估timsTOF HT和timsTOF Pro 2质谱仪用于血蛋白质组分析的性能.
- 为了比较干净的血与Proteograph处理的血进行深度蛋白质组学.
- 评估不同液态染色学 (LC) 梯度和负载质量的影响.
主要方法:
- 使用timsTOF HT和timsTOF Pro 2分析纯净和蛋白质图处理的血样本.
- 在各种负载质量和LC梯度中进行评估.
- 肺癌患者血样本的探索性分析.
主要成果:
- 与timsTOF Pro 2相比,timsTOF HT发现了多达76%的血前体和多达2倍的可量化的前体 (CV <20%).
- 与纯血相比,蛋白质图处理增加了两种仪器检测到的前体的约4.5倍.
- timsTOF HT在癌症与对照样本中的总和统计学意义上的前体增加了~50%.
结论:
- timsTOF HT在识别和量化各种生物样本的差异方面表现出卓越的性能.
- 这些发现支持在大型队列研究中改善疾病生物标志物发现.
- 该研究为优化等离子体蛋白质组学中的LC-MS工作流提供了有价值的数据集.
关键词:
蛋白质摄影机是一种蛋白质摄影机.生物标志物 生物标志物液体色谱学 液体色谱学 液体色谱学质谱测量质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量血等离子体是什么?蛋白质组学 蛋白质组学时间是时间的时间.更多相关视频
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