诱导电场通过调节免疫瘤微环境来抑制乳腺癌的生长和转移
bioRxiv : the preprint server for biology
|April 25, 2024
概括
低强度电场 (iEFs) 在小鼠中显著降低了三阴性乳腺癌的生长和转移. 这种非侵入性疗法还增强了抗瘤免疫力,减少了癌细胞的侵入性.
科学领域:
- 在瘤学瘤学.
- 生物物理学的生物物理.
- 免疫学 免疫学 免疫学
背景情况:
- 转移性三阴性乳腺癌 (TNBC) 存在重大治疗挑战.
- 已建立的疗法往往对晚期TNBC的疗效有限.
- 迫切需要新的治疗策略来改善患者的治疗结果.
研究的目的:
- 在临床前小鼠模型中研究低强度诱导电场 (iEFs) 在治疗转移性TNBC中的疗效.
- 阐明iEFs抗瘤作用背后的机制,包括免疫调节和对癌细胞特性的影响.
主要方法:
- 带有正形TNBC瘤的小鼠被用通过电磁线圈传递的非接触,低强度 (100kHz,<1mV/cm) 的iEFs治疗.
- 评估了瘤生长,肺转移,免疫细胞群 (CD8+ T 细胞,Gr1+ 中性粒细胞),T 细胞枯竭和上皮细胞转移到介质细胞 (EMT).
主要成果:
- 治疗iEF显著降低了原发性瘤生长和肺转移.
- 通过增加CD8+T细胞和减少瘤微环境 (TME) 和肺中的免疫抑制细胞,iEFs增强了抗瘤免疫反应.
- iEFs抑制了EMT,降低了癌细胞的转移潜力.
结论:
- 非侵袭性IEF疗法在抑制转移性乳腺癌的增长方面表现有前途.
- iEFs调节瘤微环境并增强抗瘤免疫力.
- 这种电疗法方法可以代表一种新的,无毒的癌症治疗策略.
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