免疫疗法可以改善高度血清性卵巢癌患者对化疗的反应
Samar Elorbany1, Chiara Berlato2, Larissa S Carnevalli3
1Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London, UK. s.elorbany@qmul.ac.uk.
Nature communications
|November 23, 2024
概括
针对巨细胞中的稳定素-1和Tregs中的FOXP3进行新型疗法可能会提高高度血清性卵巢癌 (HGSOC) 的化疗有效性. 这种方法在临床前模型中显示出改善患者治疗结果的前景.
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:
- 高度血清性卵巢癌 (HGSOC) 是一种具有有限治疗选择的侵袭性恶性瘤.
- 了解瘤免疫微环境对于开发有效疗法至关重要.
- 新辅助化疗 (NACT) 是一种标准治疗方法,但反应率各不相同.
研究的目的:
- 在HGSOC.的瘤透免疫细胞中识别潜在的治疗点.
- 研究NACT对HGSOC免疫细胞群的影响.
- 评估涉及NACT和免疫调节剂的新型组合疗法.
主要方法:
- 单细胞RNA测序 (scRNAseq) 在HGSOC体内活检和同源性小鼠模型上进行.
- 分析由NACT诱导的免疫细胞群和基因表达变化的分析.
- 在体外研究评估向稳定素-1 (STAB1) 和FOXP3.3的功能影响.
- 在HGSOC综合性小鼠模型中进行临床前组合疗法研究.
主要成果:
- scRNAseq在巨细胞和调节性T细胞 (Tregs) 中的FOXP3中发现了NACT诱导的稳定素-1 (STAB1) 的过度表达.
- 抑制STAB1促进了抗瘤巨细胞的活性,而抑制FOXP3 (使用FOXP3-ASO) 则将Treg转向了效应体表型.
- 化疗与抗STAB1抗体和/或FOXP3-ASO的联合治疗显著改善了HGSOC小鼠模型中的生存率和无进展生存率.
- 长期幸存者表现出对瘤复发的抵抗力,表明持久的免疫记忆.
结论:
- 向巨细胞上的STAB1和Tregs上的FOXP3是一个有前途的策略,用于增强HGSOC中的化疗反应.
- 免疫细胞调节,特别是巨细胞和Tregs,可以克服治疗耐药性.
- 这些发现支持对针对HGSOC患者这些免疫路径的组合疗法的临床研究.
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