外源性黑激素可以在具有高预先存在的流感免疫力的人群中增强疫苗诱导的免疫力
Kyosuke Oda1,2, Janine Danko3, Eileen Villasante2
1Henry M Jackson Foundation for Advancement of Military Medicine, Inc., Bethesda, MD, United States.
Frontiers in immunology
|November 10, 2025
概括
在具有高基线抗体标位的个体中,补充黑色素有选择地增强了对流感疫苗接种的免疫反应. 这表明,黑可以作为季节性流感疫苗的有效辅助剂,提高疫苗的疗效.
科学领域:
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
- 疫苗学 疫苗学 疫苗学
背景情况:
- 黑色素是一种天然激素,具有抗氧化和免疫调节的特性.
- 合成的黑激素通常被用作睡眠辅助剂,包括军人.
- 了解黑激素的免疫调节作用对于制定临床指导方针和加强军事准备至关重要.
研究的目的:
- 评估季节性流感疫苗接种期间外源性黑激素的免疫调节效应.
- 评估黑激素对抗体反应,细胞因子概况和疫苗接种后细胞免疫力的影响.
主要方法:
- 这项研究涉及接受四价无活化流感疫苗 (IIV4) 的参与者,并随机分配到黑激素或对照组.
- 测量了血液凝聚抑制 (HAI) 抗体反应,血清细胞因子/化学因子,以及体外抗原特异性细胞反应.
- 参与者根据A/维多利亚疫苗菌株的基线HAI标位进行了分层.
主要成果:
- 具有高基线HAI标位的黑色素接受者显示HAI抗体,T毛囊辅助细胞17 (cTfh17) 和特定细胞因子 (IL-2,IL-4,IL-17A,IL-13) 的增加.
- 相比之下,黑激素没有显著改变全球血清细胞因子水平.
- 根据先前存在的抗体水平,选择性调节抗原特异性T毛囊辅助细胞子集的黑色素.
结论:
- 黑色素显示出对T毛囊辅助细胞子集的选择性免疫调节作用,受基线免疫的影响.
- 黑色素显示出作为辅助剂的潜力,以提高季节性流感疫苗的疗效.
- 需要进一步的研究来优化黑激素在疫苗接种策略中的使用.
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