J Infect Dis:器官移植者流感疫苗接种后细胞介导的免疫反应

2020-08-08 MedSci原创 MedSci原创

尽管每年都进行免疫接种,但由于疫苗免疫原性不理想,导致实体器官移植(SOT)患者感染严重流感的风险增加。本研究旨在比较高剂量(HD)和标准剂量(SD)三价灭活疫苗的CD4+和CD8+T细胞反应。

尽管每年都进行免疫接种,但由于疫苗免疫原性不理想,导致实体器官移植(SOT)患者感染严重流感的风险增加。本研究旨在比较高剂量(HD)和标准剂量(SD)三价灭活疫苗的CD4+和CD8+T细胞反应。

 

研究人员在2016-2017年流感季节收集了60名入选HD与SD疫苗(30名HD;30名SD)随机试验的患者免疫前和免疫后的外周血单核细胞。

 

结果显示,HD疫苗引起的针对A/H1N1、A/H3N2和B型流感的单功能和多功能CD4+和CD8+T细胞应答显著增加。例如,在接受A/H1N1(1193 vs 0个/106个CD4+T细胞;P = .003)、A/H3N2(1154 vs 51;P = .008)和B(1102 vs 0;P = .001)流感刺激后,HD疫苗受试者引起的流感特异性多功能CD4+T细胞的中位数高于SD疫苗。同样,在接受乙型流感疫苗刺激后,疫苗诱导的流感特异性多功能CD8+T细胞在HD疫苗的接受者中高于SD疫苗(367 vs 0;P = .002)。

 

总之,该研究结果表明,与SD疫苗相比,HD疫苗在SOT受种者中能引起更大的细胞反应,这为优先考虑在SOT环境下使用HD疫苗提供了支持。

 

原始出处:

 

Arnaud G L'huillierVictor H Ferreira, et al., Cell-Mediated Immune Responses After Influenza Vaccination of Solid Organ Transplant Recipients: Secondary Outcomes Analyses of a Randomized Controlled Trial. J Infect Dis. 2020 Jan 1;221(1):53-62. doi: 10.1093/infdis/jiz471.

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    2020-08-09 cdz123

    骨髓移植不知道会不会这样

    0

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