综合多组学分析确定SRI是促进胃癌进展的关键目标,并与预后不佳相关
Zhijie Gong1, Weiwei Wang2, Yinghao He1
1The First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China.
Cancers
|November 13, 2025
概括
一个新的五基因签名识别了胃癌亚型,预后不佳,免疫反应发生改变. 敲除SRI基因会损害瘤生长,迁移和入侵,突出其在癌症进展中的作用.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 胃癌的进展是由复杂的分子变化驱动的.
- 确定关键的分子驱动因素对于改善患者的预后和治疗策略至关重要.
研究的目的:
- 确定胃癌进展和不良预后的分子驱动因素.
- 使用多omics数据开发胃癌的预后签名.
- 研究特定基因在瘤行为和免疫反应中的作用.
主要方法:
- 使用了单细胞RNA测序 (scRNA-seq) 和空间转录组学.
- InferCNV用于识别恶性上皮细胞.
- 通过整合scRNA-seq,TCGA-STAD数据和Cox回归模型,得出了五基因的预后特征.
- 在体外功能测试验证了SRI基因的作用.
主要成果:
- 确定了一种与预后不佳相关的恶性上皮细胞子集 (C5).
- 一个五个基因签名 (ASCL2,REPIN1,CXCL3,TMEM176A,SRI) 将患者分为高风险和低风险组.
- 高风险患者的生存率较低,免疫特征明显,免疫治疗反应减少.
- 在体外,SRI knockdown抑制了瘤细胞的增殖,迁移和入侵.
结论:
- 一种新的五基因特征准确地预测胃癌的预后和免疫反应.
- 基因SRI是胃癌进展的关键驱动因素,影响细胞生长和转移.
- 这种签名可以帮助胃癌患者个性化治疗策略.
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