在接受腹腔内化疗的低度血清性卵巢癌患者中,瘤信号和免疫微环境的不同变化
Isaac Bishara1, Patrick A Cosgrove1, Sumana Majumdar1
1Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, Duarte, CA, USA.
NPJ precision oncology
|December 14, 2025
概括
这项研究跟踪了在压力内气溶化疗 (PIPAC) 期间低度血清性卵巢癌 (LGSOC) 的分子变化. 瘤的适应方式不同,揭示了改善治疗策略的潜在目标.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 癌症生物学 癌症生物学
背景情况:
- 低度血清性卵巢癌 (LGSOC) 是一种罕见的卵巢癌亚型,以治疗耐药性和腹传播而闻名.
- 压力内气溶化疗 (PIPAC) 提供了一种用于直接腹部化疗和连续瘤采样的方法.
研究的目的:
- 为了研究LGSOC瘤对PIPAC治疗反应的纵向分子和细胞适应.
- 在LGSOC.中确定与治疗反应与耐药性相关的独特分子概况.
主要方法:
- 单核RNA测序在15个瘤样本上进行,这些样本来自两名接受连续PIPAC循环的LGSOC患者.
- 在多个PIPAC治疗周期中纵向分析瘤样本.
- 使用原型和免疫分析分析来评估细胞和免疫微环境的变化.
主要成果:
- 非响应性瘤显示增加了扩散 (E2F,MYC,G2/M),KRAS信号传递,上皮细胞-介质细胞过渡,并展开了蛋白质反应.
- 响应者瘤表现出减少的增殖和应激途径活动,并激活了替代的生存途径 (PI3K,Wnt/β-catenin,Notch).
- 在响应者中观察到代谢和免疫亚群的动态转变,而非响应者则表现出更大的瘤免疫抑制.
结论:
- 在PIPAC治疗期间,LGSOC瘤表现出动态的分子和细胞适应,影响治疗结果.
- 独特的途径激活和免疫微环境特征使响应者与非响应者区别开来.
- 这些发现凸显了需要针对LGSOC的多目标疗法,以解决LGSOC的增殖,压力,生存机制和免疫逃避.
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