胃腺癌的分子亚型结构和预后模型,其特点是代谢相关的基因
Jie Sun1, Yuanyuan Wang2, Kai Zhang3
1Department of Gastrointestinal Surgery, Shandong Provincial Third Hospital, Jinan, 250031, China.
Heliyon
|April 10, 2024
概括
这项研究在胃腺癌 (STAD) 中确定了两种与代谢相关的亚型,揭示了代谢风险评分可以预测患者的预后,并指导STAD的个性化治疗策略.
科学领域:
- 在瘤学瘤学.
- 代谢生物学代谢生物学
- 基因组学就是基因组学.
背景情况:
- 代谢重编程是癌症进展的标志.
- 代谢相关基因在胃腺癌 (STAD) 中的作用需要全面调查.
- 了解代谢异质性对于开发向疗法至关重要.
研究的目的:
- 在STAD中描述与代谢相关的分子亚型.
- 开发和验证一种代谢风险评分,用于预测患者的存活率.
- 探索代谢亚型,免疫透和STAD的临床结果之间的关系.
主要方法:
- 基于113个预后代谢基因,共识聚类被用来识别代谢亚型.
- 使用ssGSEA,MCP-Count,ESTIMATE和CIBERSORT进行了免疫透的评估.
- 使用权重基因共同表达网络分析 (WGCNA) 和LASSO Cox回归,在独立数据集中验证,构建了一个风险评分模型.
- 用RT-qPCR测量基因表达水平.
主要成果:
- 确定了两种不同的与代谢相关的STAD亚型 (C1和C2),表现出不同的免疫透和代谢特征.
- 与C1亚型相比,C2亚型的整体存活时间较短.
- 开发了一个四基因代谢风险评分 (MATN3,OSBPL1A,SERPINE1,CPNE8),证明了其在多个数据集中预测STAD患者的不良预后的能力.
- 高风险Score与增强的免疫状态和TIDE得分相关,并且这些四个基因的表达在STAD细胞中升高,OSBPL1A抑制减少了入侵.
结论:
- 这项研究提供了对代谢异质性及其与STAD免疫逃脱相关的新见解.
- 开发的风险评分作为STAD的强有力的预后指标.
- 这些发现支持基于代谢概况的STAD个性化治疗策略的潜力.
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