量化自上而下的蛋白质组学揭示了激酶抑制剂诱导的癌细胞蛋白形水平变化
Trishika Chowdhury1, Kellye A Cupp-Sutton1, Yanting Guo2
1Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35401, United States.
Journal of proteome research
|December 2, 2024
概括
一个新的高通量自上而下的蛋白质组学平台量化完整的蛋白质形式及其修改. 这种方法在HeLa细胞中使用激酶抑制剂治疗后,揭示了催化,代谢和亡途径的显著变化.
科学领域:
- 蛋白质组学是指蛋白质组学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 对蛋白质和翻译后修饰 (PTM) 的定量分析对于理解细胞过程和疾病至关重要.
- 顶向下的蛋白质组学通过分析完整的蛋白质形式,提供了对蛋白质组的全面视图.
研究的目的:
- 开发一个高通量量化自上而下的蛋白质组学平台.
- 为了研究用氨酸 (STS),一种激酶抑制剂治疗的HeLa细胞中完整的蛋白质和蛋白质丰度的变化.
主要方法:
- 开发一个高通量量化自上而下的蛋白质组学平台.
- 用稳定体 (STS) 治疗的HeLa细胞的分析.
- 蛋白质形式和蛋白质形式的鉴定和量化.
主要成果:
- 来自215个家族的1187种蛋白质被识别和定量.
- 来自37个家族的55个蛋白形体在STS治疗后显示出显著的变化,主要是对代谢,代谢和亡途径的变化.
- 观察到同一个家族内的酸化与非酸化蛋白质的不同调节,以真核细胞启动因子4E结合蛋白1 (4EBP1) 为例.
结论:
- 开发的平台能够对完整的蛋白形及其PTM进行高吞吐量定量分析.
- 顶向下的蛋白质组学比底向上的方法更全面地了解细胞对激酶抑制的反应.
- 蛋白形和蛋白形的差异调节为复杂的细胞信号通路提供了洞察力.
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