使用异标签放大方法对一个固定在甲中的氨酸嵌入组织部分进行蛋白质组学分析
Ara Cho1, Jinsung Ahn1, Andrew Kim1
1Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, and College of Medicine, Seoul National University, Seoul, Republic of Korea.
Rapid communications in mass spectrometry : RCM
|October 11, 2023
概括
用TMT标记的/蛋白质进行异标记,可以提高FFPE组织中低丰度蛋白质的检测. 这种方法使得对回顾性临床研究进行可靠的蛋白质组分析成为可能.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- 嵌入式甲固定式 (FFPE) 组织对于回顾性临床研究至关重要.
- 检测低丰度蛋白质和从FFPE样本中获得蛋白质尺度数据,这给质谱学带来了挑战.
研究的目的:
- 实施等离体标签方法,以改善FFPE组织中低丰度蛋白质的检测.
- 加强FPE样本的定性和定量分析.
主要方法:
- 用合成或蛋白质进行质量和定量蛋白质测量.
- 在TMT标记的转移性乳腺癌FFPE组织中纳入标记为TMT的双重重组蛋白/合成.
主要成果:
- 成功检测出共存的CD276 (B7-H3) 和CD147蛋白.
- 通过有针对性的分析,在FFPE样本中确定了6000多种蛋白质.
- 使用异标记和TMT标记的/蛋白质,证明了对目标蛋白质的增强检测.
结论:
- 用合成/蛋白质进行异标签是FFPE组织分析的有价值策略.
- 这种技术有助于对低丰度蛋白质的综合分析和蛋白质尺度的研究.
- 该方法有可能推进回顾性临床研究和了解疾病机制.
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