基线肠道微生物群与BNT162b2的三剂后一年的长期免疫反应有关
Li-Na Zhang1, Jing-Tong Tan1, Ho-Yu Ng2
1Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China.
Vaccines
|August 29, 2024
概括
肠道细菌的组成会影响COVID-19疫苗的反应. 像Streptococcus parasanguinis和Bacteroides stercoris这样的特定细菌在BNT162b2疫苗接种一年后与较低的抗体水平有关.
科学领域:
- 微生物组研究的研究.
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
背景情况:
- 在COVID-19疫苗接种后调查长期抗体持久性.
- 了解肠道微生物群在疫苗免疫性中的作用.
研究的目的:
- 在BNT162b2疫苗接种后探索中和IgG抗体水平.
- 确定肠道微生物群与对三剂BNT162b2疫苗接种的免疫反应之间的关联.
主要方法:
- 在香港对125名BNT162b2接受者进行前性队列研究.
- 在基线和一年内检测中和抗体 (NAb) 水平的IgG ELISA.
- 对细菌物种和代谢途径的便样本的枪支DNA基因组测序.
主要成果:
- 像*Streptococcus parasanguinis*,*Bacteroides stercoris*和*Haemophilus parainfluenzae*这样的特定细菌在低响应者中得到了丰富.
- *Bifidobacterium pseudocatenulatum* 和 *Clostridium leptum* 在高响应者中得到了丰富.
- *S. parasanguinis*与皮里米丁生物合成负相关,而*H. parainfluenzae*与抗炎途径相关.
结论:
- 肠道微生物群的组成与三剂BNT162b2疫苗接种后的长期免疫性有关.
- *S. parasanguinis*, *B. stercoris* 和 *H. parainfluenzae* 与较差的免疫反应有关.
- *B. pseudocatenulatum*和*C. leptum*与更好的疫苗反应有关.
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