脊髓灰质炎-氏病毒-特定细胞介导的免疫反应动力学和潜在的病毒载荷取决于衰老
Hyo-Ju Son1,2, Seung-Beom Kim3, Ji-Soo Kwon3
1Department of Infectious Diseases, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu, Gyeonggi-do, Republic of Korea.
Journal of medical virology
|October 21, 2025
概括
细胞介导的免疫力对抗疹病毒 (VZV) 随着年龄的增长而下降,增加了疹病毒 (HZ) 的风险. 血液中的潜伏VZVDNA,通过ddPCR测量,随着年龄的增长而增加,并可能预测HZ.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 老年学是一门学科.
背景情况:
- 疹疹 (HZ) 是由疹病毒 (VZV) 的重新激活引起的,与与年龄相关的免疫力下降有关.
- 特定于VZV的细胞介导免疫 (CMI) 随着年龄的增长而减弱,从而增加了HZ风险.
- 数字滴滴PCR (ddPCR) 可以精确量化潜伏VZVDNA,这是潜在的亚临床活性和HZ风险的生物标志物.
研究的目的:
- 在健康成年人中调查年龄,VZV特异性CMI,潜伏的VZVDNA负担和幽默免疫之间的关系.
- 评估ddPCR定量潜伏VZVDNA作为HZ风险分层的生物标志物的潜力.
主要方法:
- 预期招募40-80岁的健康成年人.
- 通过干扰素-马ELISpot试验量化VZV特异性的CMI.
- 使用ddPCR测量PBMC中的潜伏VZVDNA.
- 使用ELISA评估VZV特异性IgG抗体水平.
主要成果:
- 40岁以后,VZV特异性CMI显著下降 (r=-0.356,p=0.001).从40岁开始,VZV特异性CMI显著下降 (r=-0.356,p=0.001).
- 潜伏VZVDNA负担从50岁开始显著增加 (r=0.459,p<0.001).
- 对VZV特异性抗体水平没有显著的年龄关联 (r=0.004,p=0.967).
结论:
- 从中年开始,VZV特异性CMI与年龄相关的下降和潜伏VZVDNA的增加显而易见.
- 对潜伏VZVDNA的ddPCR量化显示,作为亚临床VZV再激活和HZ风险的生物标志物具有前景.
- 需要进一步的研究来验证ddPCR对高风险评估和疫苗接种策略的预测价值.
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