J Allergy Clin Immunol:猫尾草皮下和舌下免疫疗法对过敏原特异性IgA反应的不同诱导作用

2021-04-25 AlexYang MedSci原创

舌下免疫治疗(SLIT)和皮下免疫治疗(SCIT)后的过敏原特异性免疫球蛋白响应还没有详细比较。

舌下免疫治疗(SLIT)和皮下免疫治疗(SCIT)后的过敏原特异性免疫球蛋白响应还没有详细比较

最近,有研究人员在一项双盲、双假、安慰剂对照试验中,比较了两年SCIT和SLIT治疗期间以及治疗中止后一年的鼻腔和全身猫尾草草花粉(TGP)特异性抗体反应情况

研究包括了84名参与者。结果发现,在第2年和第3年,与SCIT相比,SLIT的鼻液中TGP-IgA1/2升高(IgA1分别为4.2和3.0倍,IgA2为2.0和1.8倍;所有P<0.01)。与SCIT相比,SLIT中第1、2和3年时血清中的TGP-IgA1升高(分别为4.6、5.1和4.7倍;所有P<0.001)。在第2年,SCIT的血清TGP-IgG比SLIT高(2.8倍)。在第1、2和3年,SCIT的血清TGP-IgG4高于SLIT(分别为10.4、27.4和5.1倍;均为P<0.01)。与安慰剂相比,SCIT和SLIT的血清IgG4对Phl p1、2、5b和6在第1、2和3年有所增加(Phl p1:11.8和3.9倍;Phl p2:31.6和4.4倍;Phl p5b:135.5和5.3倍;Phl p6:145.4和14.7倍,均在第2年水平达到峰值;P<0.05)。与SCIT(2.8倍;P=0.04)和安慰剂(3.1倍;P=0.02)相比,SLIT组鼻液中TGP的IgE在第2年有所增加,但第3年没有增加。根据治疗组和临床反应,TGP的IgA和TGP的IgE和IgG4可对参与者进行分层。

最后,研究人员指出,SLIT中IgA1/2的诱导和SCIT中IgG4的诱导表明了两种疗法作用机制的关键差异

原始出处:

Mohamed H Shamji , David Larson , Aarif Eifan et al. Differential Induction of Allergen-specific IgA Responses following Timothy Grass Subcutaneous and Sublingual Immunotherapy. J Allergy Clin Immunol. Apr 2021

 

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    2021-04-26 膀胱癌
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    2021-04-26 智者为医08

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