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通过基于质谱的蛋白质组学对hPTM的定量模式,对三阴性乳腺癌有影响

Chunyan Liu¹, Mengying Xu¹, Wan Li¹

¹School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.

Journal of proteome research

|April 5, 2024

概括

基因组转化后修改 (hPTMs) 在三阴性乳腺癌 (TNBC) 中显示出独特的模式. 这些特定的HPTM可以将TNBC与正常组织区分开来,提供新的治疗点.

科学领域:

生物化学生物化学
分子生物学分子生物学
在瘤学瘤学.

背景情况:

三阴性乳腺癌 (TNBC) 是具有有限治疗点的侵略性.
基因组后翻译修饰 (hPTMs) 在TNBC分子亚型中的作用尚不清楚.

研究的目的:

为了研究TNBC中的特定的质子修饰.
确定TNBC诊断和治疗的潜在生物标志物.

主要方法:

在乳腺癌细胞系和患者组织上利用非向和向蛋白质组学.
分析 histone H3 lysine 修饰部位,包括甲基化和乙化.
量化了20个目标hPTM.

主要成果:

确定了36个修饰的和12个素H3 lysine修饰位.
在TNBC和正常组织之间,在4个特定的hPTM (H3K14ac,H3K27me1,H3K36me2,H3K36me3) 中发现了显著的差异.
证明独特的hPTM模式可以将TNBC与正常病例区分开来.

结论:

特定的HPTM作为TNBC的潜在生物标志物.
结果表明,在TNBC管理中针对性治疗策略的新途径.

关键词:

基因组 H3 基因组 H3 基因组基质子翻译后的修改基于质谱的蛋白质组学.进行分析和定量化.三重阴性乳腺癌是什么

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