在肝细胞癌中,ATP6AP1驱动着热中介的免疫逃避:一种机器学习引导的治疗点
Lei Tang1, Xiyue Wang2, Zhengzheng Xia2
1Department of Infectious Diseases, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
Discover oncology
|April 25, 2025
概括
肝细胞癌 (HCC) 是由于免疫逃避而具有挑战性的. ATP6AP1,一种与火死相关的基因,通过稳定V-ATPase来驱动免疫抑制,提供治疗点以提高免疫疗法的疗效.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 肝细胞癌 (HCC) 具有重大治疗挑战,其特点是免疫抑制性瘤微环境 (TME) 和对免疫检查点抑制剂 (ICI) 的耐药性.
- 热,一种编程细胞死亡形式,在瘤免疫力中具有复杂的作用,但其特定的调节机制和与HCC免疫逃避的相互作用尚未完全理解.
- 这项研究研究了ATP6AP1在热中介的TME重塑中的作用及其作为HCC治疗点的潜力.
研究的目的:
- 为了阐明ATP6AP1在HCC中Pyroptosis介导的TME重塑中的作用.
- 确定ATP6AP1作为一种潜在的治疗点,以克服HCC的免疫抵抗.
主要方法:
- 整合大规模数据集 (TCGA,GEO) 和使用权重基因共同表达网络分析 (WGCNA) 来识别核心模块.
- 利用多种机器学习技术 (GBM,XGBoost,SVM,LASSO,随机森林) 和功能分析来研究ATP6AP1的作用.
- 使用CIBERSORT分析了免疫透模式,以了解潜在的机制.
主要成果:
- ATP6AP1被确定为HCC的高度可靠的诊断生物标志物,其AUC为0.979.
- 在68%的病例中观察到ATP6AP1的复发性C>T突变,其表达与HCC阶段相关 (P < 0.001).
- 高ATP6AP1表达与休息树突细胞和调节性T细胞的增加有关,有助于免疫抑制的TME.
结论:
- 一个机器学习衍生的诊断模型 (AUC = 0.998) 和ATP6AP1提供了一种克服HCC免疫抵抗的策略.
- ATP6AP1稳定了V-ATPase,导致了溶酶体的酸化,抗原呈现的受损,以及火性炎症酶激活.
- 向ATP6AP1可以重塑TME并通过调节溶酶体酸化-热-免疫抑制轴来增强HCC患者的免疫疗法疗效.
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