AJH:CLL和MBL患者对重组带状疱疹疫苗的体液和细胞免疫应答

2021-10-29 MedSci原创 MedSci原创

RZV在MBL/CLL参与者中不产生细胞介导的抗体反应,这与年龄和性别匹配的抗体反应相当

单克隆B细胞增多症(MBL)和慢性淋巴细胞白血病(CLL)是与感染风险增加和免疫应答受损相关的克隆B细胞疾病。国外一研究团队研究了重组带状疱疹疫苗(RZV)在这些患者中的免疫原性。将文章发表在AJH期刊上。

研究将患有MBL/未治疗CLL和布鲁顿酪氨酸激酶抑制剂(BTKi)治疗CLL的患者给予两剂RZV,时间间隔两个月。通过抗糖蛋白E酶联免疫吸附试验和双色IFN-γ和IL-2荧光斑点试验评估第一次注射RZV后3个月和12个月的反应,并与年龄和性别匹配的历史对照组进行比较。

62名患者(包括37名患有MBL/未经治疗的CLL和25接受btki治疗的CLL)被纳入研究,接种疫苗时的中位年龄为68岁。结果显示45%的参与者在3个月时出现抗体应答,显著低于历史对照组(63%,P=0.03)。抗体应答在MBL/未治疗的CLL和btki治疗的CLL之间没有显著差异(分别为51%和36%,P=0.23)。与对照组相比,研究参与者对接种疫苗的CD4+ T细胞应答显著降低(54% vs 96%, P;0.001),主要原因是btki治疗患者的应答低于未治疗的MBL/CLL患者(32% vs 73%, P=0.008)。

最后只有29%的参与者获得了对RZV的联合抗体和细胞应答。在12个月时进行应答评估的参与者中(n=47),24%的抗体滴度低于应答阈值。在一项单变量分析中,低伽马球蛋白血症和BTKi治疗与T细胞应答减少相关。需要采取策略提高MBL/CLL患者对RZV疫苗的反应。

 

综上所述,研究表明,RZV在MBL/CLL参与者中不产生细胞介导的抗体反应,这与年龄和性别匹配的抗体反应相当。这一观察结果主要是由btki治疗患者的低反应驱动的。尽管免疫原性较低,但考虑到研究和至少有一项其他前瞻性研究中没有严重的不良事件,研究团队建议对所有MBL和CLL患者使用这种疫苗。此外,对于一部分患有低丙种球蛋白血症的CLL患者和那些接受BTKi治疗的患者,继续使用阿昔洛韦预防带状疱疹可能是必要的,直到其他研究显示RZV在这一人群中的疗效。

 

原始出处:

Muchtar, E., Koehler, A.B., Johnson, M.J., Rabe, K.G., Ding, W., Call, T.G., Leis, J.F., Kenderian, S.S., Hayman, S.R., Wang, Y., Hampel, P.J., Holets, M.A., Darby, H.C., Slager, S.L., Kay, N.E., Miao, C., Canniff, J., Whitaker, J.A., Levin, M.J., Schmid, D.S., Kennedy, R.B., Weinberg, A. and Parikh, S.A. (2021), Humoral and cellular immune responses to recombinant herpes zoster vaccine in patients with chronic lymphocytic leukemia and monoclonal B cell lymphocytosis. Am J Hematol. Accepted Author Manuscript. https://doi.org/10.1002/ajh.26388

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    2022-02-26 gdsun
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    2021-11-02 麻无赦

    学习了

    0

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    2021-10-30 12346c4dm64暂无昵称

    带状疱疹免疫力

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    2021-10-30 查查佳佳

    痛风是男性最常见的炎症性关节炎,

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    2021-10-30 与狼共舞

    学习学习

    0

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