综合单细胞转录组分析揭示了纤维细胞亚群和COMT在前列腺癌进展中的预后关联,COMT ,COMT
Weimin Shan1, Bo Guan2, Weiwei Ma1
1Department of Urology, Fuyang People's Hospital of Anhui Medical University, Fuyang, China.
Scientific reports
|July 28, 2025
概括
这项研究确定了Catechol-O-methyltransferase (COMT) 作为前列腺癌纤维细胞中的关键基因,显示其高表达与患者生存率差以及复杂的瘤微环境相关. 这些发现突出了COMT作为预后标志物和潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 前列腺癌是一种异质的恶性瘤,受其复杂的瘤微环境 (TME) 的影响.
- 癌症相关纤维细胞 (CAFs) 是塑造TME和推动癌症进展的关键参与者.
- 甲基转移酶 (Catechol-O-methyltransferase,COMT) 是一种调节甲基胺和氧化应激的酶,在癌症生物学中扮演着新兴的角色.
研究的目的:
- 为了探索前列腺癌中纤维细胞的分子特征.
- 评估前列腺癌中COMT表达的预后意义.
- 开发基于纤维细胞相关基因的预后模型,包括COMT.
主要方法:
- 综合单细胞RNA测序 (scRNA-seq) 分析前列腺癌样本.
- 使用聚类和基因签名识别和表征纤维细胞亚群.
- 通过考克斯回归进行预测分析,并使用TCGA数据开发风险评分模型.
- 使用免疫光测试验证COMT表达的验证.
主要成果:
- 确定了三个不同的纤维细胞亚群,具有独特的功能基因配置文件.
- 与正常组织相比,瘤衍生的纤维细胞中COMT表达显著增加.
- 一个风险评分模型包含COMT和其他纤维细胞基因 (QSOX1,TAX1BP3,CCDC66,MTCH1,ARL2BP),根据生存风险对患者进行分层.
- 免疫染证实了瘤纤维细胞中COMT过度表达.
结论:
- 纤维细胞,特别是CAF,在前列腺癌的进展中发挥着关键作用.
- 确定COMT是瘤微环境的重要调节者,也是前列腺癌的有希望的预后标志物.
- 该研究提供了关于纤维细胞异质性的见解,并建议COMT作为潜在的治疗点.
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