在胰腺癌中细胞间信号的临床功能蛋白质组学
Peiwu Huang1, Weina Gao1, Changying Fu1
1State Key Laboratory of Medical Proteomics and Shenzhen Key Laboratory of Functional Proteomics, Department of Chemistry and Research Center for Chemical Biology and Omics Analysis, School of Science and Guangming Advanced Research Institute, Southern University of Science and Technology, Shenzhen, China.
Nature
|November 13, 2024
概括
研究人员开发了TMEPro, 这是一种揭示胰腺癌细胞间沟通的蛋白质组策略. 这揭示了肌体PDGFR- PTPN11- FOS信号轴和AXL脱落,为胰腺管腺癌提供了新的治疗点.
科学领域:
- 癌症学
- 蛋白质组学
- 癌症生物学
背景情况:
- 胰腺管腺癌 (PDAC) 的特征是复杂的瘤微环境 (TME).
- 癌症和树皮细胞之间的细胞间信号显著影响PDAC的进展和患者的预后.
- 了解这些相互作用对于开发有效的治疗策略至关重要.
研究的目的:
- 开发和应用多维蛋白质组策略 (TMEPro) 进行PDAC TME的深度分析.
- 识别癌症和树皮细胞之间的细胞间信号通路,特别是涉及激素酸化的信号通路.
- 研究血蛋白脱落在PDACTM调节中的作用,并确定潜在的治疗点.
主要方法:
- 开发TMEPro,用于分析糖化分泌和血蛋白质的蛋白质组策略.
- 用TMEPro对100个人类胰腺组织样本进行深度蛋白质分析.
- 在基因工程PDAC小鼠模型中研究时间动力学.
- 已识别的信号轴和蛋白质分泌机制的功能分析.
主要成果:
- TMEPro能够对PDAC蛋白质组进行深度分析,确定细胞起源和膜交叉声.
- 通过PDGFR-PTPN11-FOS轴识别出肌细胞与癌细胞之间的相互信号.
- 通过矩阵金属蛋白质酶介导的AXL受体氨酸激酶 (ectodomain) 脱落被揭示为一个关键的调节机制.
- 脱离AXL水平与淋巴结转移相关;AXL抑制对癌细胞生长产生协同作用.
结论:
- TMEPro是一种用于剖析PDAC TME的多功能临床蛋白质组策略.
- 这项研究确定了新的细胞间信号通路和PDAC中AXL脱落的意义.
- 这些发现为发现胰腺癌的新诊断和治疗目标提供了资源.
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