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Updated: Sep 11, 2025

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Basophil Activation Test for Allergy Diagnosis
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用树花粉提取物的辅助注射激活了在完成过敏原免疫治疗的患者的B细胞记忆反应
Carolin Baum1, Christian Möbs1, Wolfgang Pfützner1
1Clinical & Experimental Allergology, Department of Dermatology and Allergology, Philipps-Universität Marburg, Marburg, Germany.
European journal of immunology
|August 18, 2025
概括
一次过敏原辅助注射可以显著提高B细胞记忆和过敏原耐受性,在患者之前接受过敏原免疫疗法 (AIT). 这种方法可以促进阻断IgG抗体,在AIT完成后可能恢复耐受性.
科学领域:
- 免疫学 免疫学 免疫学
- 过敏研究 研究过敏
- 疫苗学 疫苗学 疫苗学
背景情况:
- 过敏原免疫疗法 (AIT) 诱导阻断IgG抗体用于IgE介导过敏的耐受性.
- 在AIT停止后,抗体水平下降,有可能失去耐受性.
研究的目的:
- 为了研究单个过敏原助推剂对树花粉 (BP) 过敏患者B细胞记忆的影响,这些患者已经完成了AIT.
- 评估AIT后的助推剂是否可以加强过敏原耐受性.
主要方法:
- 25名AIT治疗的BP过敏患者接受了一次BP过敏原注射.
- 测量了Bet v 1特定的IgG分泌细胞 (ASC),血清IgG,IgG4,IgE抗体,以及IgG/IgG4阻断活性.
- 结果与接受常规AIT的12名患者进行了比较.
主要成果:
- 一次BP注射显著增加了Betv1特异性ASC,IgG/IgG4抗体和过敏原阻断活性,注射后2-4周.
- 与传统的AIT剂量增加相比,助推剂引起了更强的B细胞反应.
- 用视觉模拟尺度评估临床反应.
结论:
- 过敏原辅助注射有效地激活B细胞记忆.
- 这种激活与阻断IgG/IgG4抗体的增加有关,加强了对过敏原的耐受性.
- 一次性增强剂可能是维持AIT后耐受性的策略.
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