标记HBsAg的瘤疫苗系统通过病毒特异性记忆T细胞消除固体瘤
Wenguang Wang1,2, Ya Chu3,4, Lili Zhao3,4
1Institute of Translational Medicine, China Pharmaceutical University, Nanjing, China. wgwang@cpu.edu.cn.
Nature biomedical engineering
|November 17, 2025
概括
一种新的乙型肝炎表面抗原 (HBsAg) 标记的瘤疫苗系统 (H-TVAC) 有效地向和溶解瘤细胞. 这种创新的癌症疫苗方法显示出显著的抗瘤免疫反应,并在临床前模型中提高了生存率.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 疫苗开发 疫苗开发
背景情况:
- 由于瘤异质性和免疫抑制微环境,开发有效的癌症疫苗具有挑战性.
- 微生物抗原为瘤中的免疫性和T细胞激活提供了一个强大的模型.
研究的目的:
- 开发一种新的瘤疫苗系统 (H-TVAC),利用微生物抗原克服癌症免疫疗法的挑战.
- 评估H-TVAC在引起抗瘤免疫反应和改善临床前癌症模型中的存活率方面的疗效.
主要方法:
- 开发一种由乙型肝炎表面抗原 (HBsAg) 标记的瘤疫苗系统 (H-TVAC).
- 利用由HBsAg mRNA疫苗诱导的HBsAg特异性记忆T细胞来准HBsAg标记的瘤细胞.
- 使用疫苗病毒用于瘤细胞溶解,并通过表皮质扩散评估免疫反应.
主要成果:
- 在多个临床前小鼠模型中,H-TVAC显示出显著的抗瘤免疫反应 (B16-OVA,B16F10,MC38,CT26,4T1,H22肝细胞癌).
- 疫苗系统导致瘤携带小鼠的生存率提高,转移率降低,复发率降低.
- 通过招募树突细胞,H-TVAC成功地引起了瘤特异性免疫力,促进了异质固体瘤的消除.
结论:
- 在癌症治疗中,H-TVAC系统代表了克服瘤异质性和免疫抑制的有希望的策略.
- 这种新的方法有效地准和消除瘤细胞,为改善各种固体瘤患者的治疗结果提供了潜力.
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