病毒纳米粒子内疫苗用于HER2+恶性瘤
Miguel A Moreno-Gonzalez1,2,3,4, Jessica Fernanda Affonso de Oliveira1,2,3,4, Manuel L Penichet5,6,7,8,9,10
1Aiiso Yufeng Li Family Department of Chemical and NanoEngineering, University of California, San Diego (UCSD), La Jolla, California, United States.
Oncoimmunology
|December 12, 2025
概括
携带HER2表位体的牛马赛克病毒 (CPMV) 纳米颗粒的内输送有效地通过激活免疫细胞和调节瘤微环境 (TME) 来治疗HER2+癌症. 菌体Qβ纳米颗粒显示出有限的抗瘤疗效.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 纳米技术纳米技术
背景情况:
- 病毒纳米粒子 (VNPs) 可以激活免疫细胞并调节瘤微环境 (TME) 用于癌症治疗.
- 在几个HER2阳性 (HER2+) 癌症中,HER2是向抗原.
- 内 (i.t.) 内 (i.t.) 内 (i.t.) 内 (i.t.) 内 (i.t.)) 内 (i.t.) 内 (i.t.) 内 (i.t.) 内) 内 (i.t.) 内 (i.t.) 内 (i.t.)) 内 (i.t.) 内 (i.t.) 内 (i.t.) 内) 内 (i.t.) 内 (i.t.) 内 (i.t.) 内 (i.t.) 内) 内 (i.t.) 内) 内 (i.t.) 内 (i.t.) 内 (i.t.) 内) 内 (i.t.) 内 (i.t.) 内) 内 癌症疫苗的配送策略正在探索中.
研究的目的:
- 开发和评估 HER2 向的病毒纳米粒子 (VNP) 作为治疗癌症疫苗.
- 为了比较牛马赛克病毒 (CPMV) 和菌体Qβ作为HER2+癌症免疫疗法的VNP载体的疗效.
- 调查不同交付路线 (IT) 的影响. 与皮下) 对抗瘤免疫力.
主要方法:
- 结合HER2表位素到CPMV和Qβ病毒纳米粒子.
- 在CT26-HER2和MC38-HER2瘤模型中对CPMV-HER2和Qβ-HER2候选疫苗进行体内评估.
- 评估幽默免疫 (IgG抗体) 和细胞免疫 (Th1/Th2细胞因子,T细胞激活).
- 内治疗和皮下预防性免疫路径的比较.
主要成果:
- 内给药的CPMV-HER2在HER2+模型中显示出显著的抗瘤功效,诱导IgG2a抗体,Th1细胞因子上调和Th1细胞激活.
- Qβ-HER2诱导了IgG1抗体和平衡的Th1/Th2反应,但显示出有限的抗瘤疗效.
- 内接种疫苗调节了瘤微环境,并诱导了强大的抗瘤T细胞反应.
- 皮下免疫增强了幽默免疫力,但未能有效调节TME,限制了抗瘤作用.
结论:
- CPMV-HER2是一种有前途的基于VNP的治疗疫苗候选人,用于HER2+癌症,通过内输送表现出强大的抗瘤活性.
- 不同的VNP载体表现出不同的免疫调节特性,影响疫苗的疗效.
- 内治疗性疫苗接种方法与HER2表位组合,通过诱导治疗性抗体,TME调节和抗瘤T细胞反应,为活性免疫疗法提供了强大的策略.
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