拉德斯:用于癌症免疫疗法和预防的强大疫苗平台
Jing Sun1, Jing Wang1, Xin Jiang1
1Key Laboratory of Applied Biotechnology on Animal Science & Veterinary Medicine of Zhejiang Province, Zhejiang Engineering Research Center for Veterinary Diagnostics & Advanced Technology, Zhejiang International Science and Technology Cooperation Base for Veterinary Medicine and Health Management, Belt and Road International Joint Laboratory for One Health and Food Safety, China-Australia Joint Laboratory for Animal Health Big Data Analytics, College of Veterinary Medicine, Zhejiang A&F University, 666 Wusu Street, Lin'an District, Hangzhou, Zhejiang Province, 311300, China.
一种基于Listeria的新型活衰减双替代 (LADS) 疫苗平台有效向瘤. LADS疫苗显示出显著的瘤抑制和回归,为癌症免疫治疗和预防提供了一个有希望的方法.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 疫苗学 疫苗学 疫苗学
背景情况:
- 李斯特菌 (Listeria monocytogenes) 是癌症免疫治疗的一个有前途的载体.
- 它有效地将瘤抗原传递给呈现抗原的细胞,刺激抗瘤反应.
研究的目的:
- 开发和评估一种新的基于李斯特菌的活衰减双替代 (LADS) 疫苗平台.
- 在临床前癌症模型中评估基于LADS的疫苗 (LADS-E7和LADS-AH1) 的疗效.
主要方法:
- 通过将特定的氨基酸替代物 (N478AV479A) 引入listeriolysin O (LLO) 来创建LADS平台.
- 开发了LADS-E7和LADS-AH1疫苗,以提供特定的瘤抗原.
- 向瘤携带的小鼠注射疫苗并分析瘤生长,免疫细胞透和基因表达.
主要成果:
- 在LADS疫苗显示显著减弱 (近7000倍),同时保持免疫性.
- LADS-E7和LADS-AH1治疗显著抑制和回归已建立的瘤.
- 疫苗接种增加了瘤透的抗原特异性CD8+T细胞,并诱导了全身抗瘤免疫力,防止瘤的形成和生长.
结论:
- LADS平台是癌症免疫治疗的安全有效疫苗.
- 基于LADS的疫苗显示出对抗癌症和传染病的治疗和预防应用的潜力.
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