高水平的多分支复合甘氨酸揭示了过敏耐受性状态
Ran Zhao1,2,3, Chao Wang1, Feidie Li1
1Department of Respiration, School of Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University, 355 Luding Rd Shanghai, Shanghai, 200062, China.
Clinical proteomics
|June 7, 2024
概括
过敏原免疫疗法 (AIT) 改变N-甘氨酸,从高曼诺斯转变为复杂类型. 多分支复杂的甘氨酸可能表明在家用粉尘虫过敏患者的免疫耐受性.
科学领域:
- 免疫学 免疫学 免疫学
- 葡萄糖生物学 葡萄糖生物学
- 过敏研究 研究过敏
背景情况:
- 过敏原免疫疗法 (AIT) 是一种针对过敏的疾病修饰疗法.
- 甘氨酸与过敏性疾病有关,但在AIT诱导的耐受性过程中它们的变化是未知的.
研究的目的:
- 在AIT期间调查血清N-甘氨酸的变化,以对室内灰尘虫 (HDM) 过敏进行研究.
- 为了确定免疫耐受性潜在的甘氨酸生物标志物.
主要方法:
- 在57名HDM过敏患者中,使用MALDI-TOF MS分析了血清N-甘氨酸.
- 患者被分为:没有AIT,早期AIT维护和长期AIT维护 (>1年).
主要成果:
- 随着AIT持续时间的变化,N-糖甘的形状发生了变化.
- 早期的AIT显示高曼诺斯降低和酸增加.
- 长期的AIT (免疫耐受性) 显示两年内N-glycans的减少和多分支/复杂N-glycans的增加.
结论:
- N-甘氨酸结构从富含曼诺斯的演变为复杂的形式,AIT持续时间增加.
- 多分支复杂的N-甘氨酸具有潜力作为监测免疫耐受性的生物标志物.
- 血清N-葡萄糖组分析为AIT提供了分子洞察力.
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