个性化辅助mRNA癌症疫苗的免疫性和有效性
Pedro Berraondo1,2,3,4, Raquel Cuesta1,2, Miguel F Sanmamed1,2,3,4,5
1Program of Immunology and Immunotherapy, Cima Universidad de Navarra, Pamplona, Spain.
Cancer discovery
|November 1, 2024
概括
针对新抗原的个性化mRNA疫苗显示出希望,在癌症患者中诱导T细胞反应. 这些疫苗,单独使用或与pembrolizumab一起使用,在黑色素瘤和非小细胞肺癌 (NSCLC) 患者中显示出可测量的反应性.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 疫苗开发 疫苗开发
背景情况:
- 癌症疫苗是一种新兴的治疗策略.
- 个性化新抗原疫苗旨在引起针对瘤的向免疫反应.
研究的目的:
- 为了评估个性化的新抗原编码mRNA疫苗的免疫性.
- 评估用这些疫苗治疗的切除瘤患者的T细胞反应.
主要方法:
- 一期临床试验 (NCT03313778) 涉及患有非小细胞肺癌 (NSCLC) 和黑色素瘤的患者.
- 用个性化新抗原编码mRNA疫苗,单独或与pembrolizumab结合使用.
- 测量多功能CD8+和CD4+T细胞对预测的MHC-I和MHC-II表位体的反应和反应.
主要成果:
- 这些疫苗引起了可测量的多功能CD8+和CD4+T细胞反应.
- 观察到对预测的MHC-I和MHC-II表位的20%至30%的反应性.
- 在仅用疫苗治疗的NSCLC患者和用疫苗加上 pembrolizumab治疗的黑色素瘤患者中注意到了反应.
结论:
- 个性化新抗原编码mRNA疫苗在切除固体瘤的患者中具有免疫性.
- 这些疫苗可以诱导显著的T细胞反应,支持它们在癌症免疫治疗中的潜力.
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