插入的抗原向纳米细胞引导现有的免疫力杀死头癌
Lizhuo Zhang1,2,3, Qingqing Feng4, Chuanming Zheng1,2,3
1Otolaryngology & Head and Neck Center, Cancer Center, Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, 310014, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|March 17, 2025
概括
这项研究引入了新的纳米细胞,这些纳米细胞将癌细胞伪装成病毒,使先前存在的抗病毒免疫力能够准并摧毁瘤. 这种方法对治疗未明确治疗点的癌症有很大的希望.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 纳米技术 纳米技术
- 病毒学 病毒学
背景情况:
- 确定癌症治疗的特定和统一的瘤点仍然是一个重大挑战,特别是在异质瘤中.
- 在癌症治疗中,先前存在的抗病毒免疫的潜力通常受到相应的瘤相关抗原缺乏的限制.
研究的目的:
- 开发一种新的纳米细胞平台,用于抗原向癌症治疗.
- 通过工程纳米细胞来利用先前存在的免疫力对瘤细胞溶解,在瘤组织上呈现病毒抗原.
主要方法:
- 开发了用于瘤向和抗原释放的preS1 (乙型肝炎病毒抗原) -pHLIP纳米细胞.
- 在头部和部癌症的动物模型中评估纳米细胞疗效 (状细胞癌,形甲状腺癌).
- 评估免疫反应,包括瘤微环境中的B细胞和T细胞激活.
主要成果:
- 在预免疫动物模型中,PreS1-pHLIP纳米细胞有效地抑制了瘤生长,复发和转移.
- 治疗效果与前S1特异性B细胞和激活瘤特异性T细胞的比例增加相关.
- 这些纳米细胞成功标记了瘤组织,通过先前存在的免疫反应促进了溶解.
结论:
- 工程化纳米细胞可以有效地将瘤细胞伪装成病毒,通过先前存在的抗病毒免疫来实现瘤破坏.
- 该策略为具有挑战性或模糊目标配置文件的癌症提供了一种新的治疗方法.
- 该平台展示了通过利用先天免疫记忆来增强癌症治疗的潜力.
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