一种鼻腔纳米粒子疫苗引起了对Mycobacterium结核病菌的保护性免疫力
K M Samiur Rahman Sefat1, Monish Kumar1, Stephanie Kehl2
1Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX 77054, USA.
一种新型的粘膜辅助剂NanoSTING成功地启动了T细胞对结核病的免疫力. 用NanoSTING-H1进行鼻腔接种证明了与BCG可比的保护,突出了其开发有效结核病疫苗的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 微生物学 微生物学
背景情况:
- 粘膜疫苗有可能在入口处保护呼吸道病原体.
- 为蛋白质子单元疫苗开发安全有效的粘膜辅助剂仍然是一个挑战.
- 干扰素基因刺激 (STING) 途径对天生的免疫非常重要.
研究的目的:
- 为了评估NanoSTING,一个循环氨酸氨酸单酸盐 (cGAMP) 脂质体配方,作为粘膜辅助剂.
- 评估使用NanoSTING作为辅助剂的基于H1抗原的疫苗的免疫性和保护功效.
- 通过鼻内纳米NanoSTING-H1免疫诱导的T细胞反应的特征.
主要方法:
- 使用NanoSTING辅助剂的H1抗原疫苗的配方.
- 用NanoSTING-H1疫苗对动物进行鼻腔免疫.
- 对肺T细胞反应的分析 (CXCR3+KLRG1-,IFNγ分泌CD4+,IL17分泌CD4+).
- 挑战与气溶液中的Mycobacterium结核病埃德曼菌株.
- 保护与BCG疫苗接种的比较.
主要成果:
- 鼻内纳米STING-H1诱导了肺部强大的T细胞反应,包括CXCR3+KLRG1-居住的T细胞,IFNγ分泌的CD4+T细胞和IL17分泌的CD4+T细胞.
- 用NanoSTING-H1接种疫苗对M.结核病提供了与BCG.相比的保护.
- 这种疫苗引起了对控制M.结核病感染至关重要的多因素免疫反应.
结论:
- 纳米STING是一种强大的粘膜辅助剂,能够诱导保护性T细胞免疫力.
- 纳米STING辅助蛋白质疫苗是预防结核病的一个有希望的策略.
- 这种方法可能会导致开发下一代粘膜疫苗来对抗M.结核病.
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