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多omics分析揭示了用于免疫治疗和预后的紫外线反应见解
DanHua Zhang1,2, Mei Dai1, JiaFei Ying3
1Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
Frontiers in immunology
|October 13, 2025
概括
这项研究表明,紫外线光响应 (UVR) 与癌症中免疫检查点抑制剂 (ICI) 的抵抗有关. 一种新的UVR基因签名 (UVR.Sig) 可以预测治疗结果并指导乳腺癌治疗.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 基因组学就是基因组学.
背景情况:
- 免疫检查点抑制剂 (ICI) 已经改变了癌症治疗,但面临的挑战是患者的耐药性.
- 紫外线 (UV) 光对ICI耐药性的影响尚不清楚,尽管UV有已知的免疫抑制作用.
研究的目的:
- 调查紫外线反应 (UVR) 与对免疫检查点抑制剂 (ICI) 的耐药性之间的关联.
- 开发基于UVR的ICI治疗结果的预测模型.
- 探索紫外线在乳腺癌 (BRCA) 亚型中的作用,并确定潜在的治疗点.
主要方法:
- 来自ICI治疗患者的单细胞RNA测序 (scRNA-seq) 数据集的分析.
- 使用多种癌症队列开发和验证UVR基因签名 (UVR.Sig).
- 使用机器学习算法识别关键的UVR基因 (Hub-UVR.Sig).
- 对BRCA亚型的分类和基因功能的体外验证.
主要成果:
- 紫外线.Sig与ICI耐药性相关,免疫抑制细胞透率增加,以及各种癌症中的前瘤通路.
- 一个基于UVR.Sig的模型证明了ICI治疗反应的预测准确性 (AUC = 0.727).
- 在BRCA中,Hub-UVR.Sig确定了具有明显免疫逃避概况的亚型;高表达与较差的结果有关.
- 关键基因ENO2在BRCA中过度表达,并与更糟糕的预后有关,其敲击抑制了癌细胞的生长和入侵.
结论:
- 紫外光反应 (UVR) 与对免疫检查点抑制剂 (ICI) 的耐药性有显著的关联,代表了免疫治疗中的新型因素.
- 开发的UVR.Sig为识别可能受益于免疫治疗的患者提供了潜在的工具.
- 这种签名可以帮助量身定制治疗策略,特别是乳腺癌 (BRCA) 患者,通过将其分为不同的亚型.
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