在II期结肠癌中,叶酸相关基因表达的预后值在II期结肠癌中
Donia Kaidi1,2, Elisabeth Odin1, Yvonne Wettergren1,2
1Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Journal of cancer research and clinical oncology
|February 25, 2025
概括
低瘤胆酸合成酶 (TYMS) 表达与II期结肠癌复发时间较差相关. 在微卫星不稳定性高的瘤中,高TYMS表达可能表明更好的预后,有助于免疫疗法分层.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 二期结肠癌表现出显著的预后变化,需要改进风险分层方法.
- 叶酸通路基因表达与结肠癌的发展和进展有关.
- 识别新的生物标志物对于预测患者的结果和指导治疗决策至关重要.
研究的目的:
- 为了研究叶酸相关基因表达在II期结肠癌的预后意义.
- 探索瘤组织和相邻的粘膜中的基因表达与复发时间 (TTR) 之间的关系.
- 评估这些基因作为风险分层和免疫治疗反应的生物标志物的潜力.
主要方法:
- 使用定量PCR (qPCR) 来分析瘤和粘膜组织中ABCC3,AMT,FPGS,GH,MFT,PCFT,RFC-1和TYMS的表达.
- 基因表达数据与II期结肠癌患者队列中的复发时间 (TTR) 和临床病理变量相关.
- 在瘤和粘膜之间进行了比较,并在不同的微卫星不稳定性 (MSI) 状态和瘤位置之间进行了比较.
主要成果:
- 瘤胆固醇合成酶 (TYMS) 表达,pT4阶段和紧急手术独立地与TTR相关.
- 在所有分析的基因中,在瘤和粘膜组织之间观察到基因表达的显著差异.
- 在粘膜中的ABCC3,GH和RFC-1,以及瘤中的AMT,GH和TYMS的表达在MSI-H和MSS/MSI-L组之间有所不同.
- 瘤位置影响了瘤和粘膜组织中几个叶酸通路基因的表达.
结论:
- 低瘤TYMS表达是第二阶段结肠癌中TTR恶化的显著预测因素,无论MSI状态,pT阶段或紧急手术.
- 在MSI-H瘤中高瘤TYMS表达表明潜在的更好的预后.
- 这些发现凸显了TYMS和MSI状态在分层化II期结肠癌患者的潜在用处,用于包括免疫疗法在内的向治疗.
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