卵巢癌中化学抵抗的演变通过单细胞RNA测序来划分
Yuanmei Wang1,2,3, Zongfu Tang1,3, Haoyu Li1,3
1College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
International journal of molecular sciences
|July 29, 2025
概括
化疗改变高度血清性卵巢癌 (HGSOC) 的瘤微环境,影响免疫细胞和纤维细胞. 这种局部依赖的重编程会影响临床结果,并建议新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
背景情况:
- 高度血清性卵巢癌 (HGSOC) 具有侵略性,通过腹膜内传播并抵抗化疗.
- 目前的化疗疗法有效性有限,需要对瘤微环境 (TME) 进行研究.
- 了解化疗对不同瘤部位的TME的影响至关重要.
研究的目的:
- 研究新辅助化疗 (NACT) 如何在各种瘤焦点重塑HGSOC中的TME.
- 为了确定化学疗法诱导的特定细胞和分子变化.
- 将这些变化与临床结果和瘤进展相关联.
主要方法:
- 来自不同瘤部位的HGSOC样本的单细胞转录组分析.
- 具有和没有NACT病史的样本的比较.
- 对细胞间通信网络的分析.
主要成果:
- 化疗减少了人类白细胞抗原 (HLA) 的多样性,并增加了特定免疫细胞 (CD8_ANXA1,DC_LAMP3,mono_EREG) 中的PDCD1/CD274表达.
- 在转移部位和NACT后样本中积累的癌细胞 (cancer.cell.2),癌症相关纤维细胞 (CAF_C3) 和纤维细胞_CD34,与糟糕的结果相关.
- 在NACT后的样本中观察到cancer.cell.2和CAF_C3/Fibrocyte_CD34之间的增强相互作用,表明依赖于位点的化疗效应.
结论:
- 化疗显著重新编程HGSOC瘤微环境,以依赖于位点的方式.
- 特定的细胞群,包括癌细胞,纤维细胞和纤维细胞,都与免疫排除和化疗后瘤进展有关.
- 这些发现为开发针对HGSOC的个性化化疗和免疫疗法组合提供了单细胞数据基础.
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