个体猫的过敏原分子的过敏活性
Daria Trifonova1,2, Mirela Curin1, Ksenja Riabova2
1Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria.
International journal of molecular sciences
|December 9, 2023
概括
猫类过敏影响全球10%以上的人口,主要导致呼吸系统问题. 这项研究确定Fel d 4和Fel d 7是重要的过敏原,与Fel d 1一起,对于改善诊断和免疫治疗至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 过敏学 过敏学
- 生物化学 生物化学
背景情况:
- 免疫球蛋白E (IgE) 介导的猫类过敏影响全球人口的10%以上,主要表现为呼吸系统症状,如鼻炎和喘.
- 虽然已经确定了几种猫类过敏原分子,但它们的特定过敏原活动需要进行更深入的研究以进行有效的管理.
研究的目的:
- 为了对分子质量和折叠的纯化猫过敏原分子 (Fel d 1-4, 6-8) 进行表征.
- 在有或没有猫引起的呼吸道症状的个体中量化猫过敏原特异性IgE水平.
- 通过测量基细胞脱粒度来评估不同猫猫过敏原的过敏活性.
主要方法:
- 使用质谱学和循环二重化谱学净化和表征猫猫过敏原分子.
- 使用ImmunoCAP测定量特定IgE水平的量化.
- 在实验室中通过IgE载荷基因细胞脱粒定量测量β-hexosaminidase释放来评估过敏原活性.
主要成果:
- 经过净化后的猫类过敏原被证实具有正确的分子质量和折叠.
- 与没有呼吸道过敏的患者相比,患有呼吸道过敏的患者表现出明显更高的猫类过敏原特异性IgE水平.
- 费尔德1,费尔德4和费尔德7在较低度下表现出强烈的IgE结合和诱导基因细胞脱粒,超过65%的过敏患者认可.
结论:
- 由于它们的高IgE结合和强烈的过敏原活性,fel d1,fel d4和fel d7被确定为主要的猫咪过敏原.
- 这些发现表明, Fel d 4 和 Fel d 7 应该与 Fel d 1 一起考虑,以改善对猫过敏的诊断和特定免疫治疗策略.
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