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在患有牛奶过敏的患者中接受口服免疫治疗的血质细胞的克隆分化
Kiyoaki Ito1, Mitsuhiro Kawano2, Satoko Tamai3
1IgG4-related Immunology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan; Division of Nephrology and Rheumatology, Department of Internal Medicine, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan.
概括
对牛奶过敏的口服免疫疗法诱导了等离子体细胞扩张和克隆分化. 产生过敏原特异性抗体,包括IgA1,其特征取决于B细胞子类和同型.
科学领域:
- 免疫学 免疫学 免疫学
- 过敏研究 研究过敏
- B细胞生物学 B细胞生物学
背景情况:
- 过敏反应是一种严重的过敏反应.
- 过敏原免疫疗法可以改变过敏性疾病的进展.
- 对食物过敏的口服免疫疗法 (OIT) 涉及血细胞扩张和IgG4诱导.
研究的目的:
- 在口服免疫疗法治疗牛奶过敏期间对等离子体细胞进行表征.
- 在OIT中调查B细胞免疫受体和抗体配置文件.
主要方法:
- 来自两名接受OIT的牛奶过敏患者的单细胞血分析.
- 单细胞转录组学分析.
- B细胞免疫受体和复合抗体分析.
主要成果:
- 鉴定出了克隆扩展抗体和识别过敏原的IgD克隆.
- 发现了超过80%匹配的互补决定区域 (CDR) 克隆.
- 在克隆树中检测到识别过敏原的IgA1抗体.
结论:
- 在OIT期间,等离子体在牛奶过敏患者中表现出克隆分化.
- 身体突变和过敏原识别率受到等离子体子类和同型的影响.
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