与MOv18 IgE相关的非过敏性疹皮肤反应,这是第一个识别叶酸受体α的IgE抗体
Chara Stavraka1,2, Jitesh Chauhan1, Silvia Crescioli1
1St. John's Institute of Dermatology, School of Basic & Medical Biosciences & KHP Centre for Translational Medicine, King's College London, London, UK.
Allergy
|March 6, 2025
概括
用MOv18IgE治疗的患者的疹皮肤反应不是由过敏反应或抗原识别引起的. 这些反应可能与输液有关,与单克隆抗体疗法常见.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 皮肤病学 皮肤病学
背景情况:
- 针对癌症抗原的IgE抗体显示出抗瘤作用.
- MOv18 IgE针对叶酸受体α (FRα),并在I期试验中显示了初步疗效.
- 疹性皮肤反应是最常见的不良事件.
研究的目的:
- 在MOv18 IgE治疗期间调查与疹皮肤反应相关的免疫和过敏反应.
- 确定皮肤中的FRα表达或MOv18 IgE结合是否导致这些反应.
- 评估对过敏或过敏反应的全身标志物.
主要方法:
- 免疫组织化学,免疫光学和免疫质谱学以评估皮肤中的FRα表达和IgE结合.
- 创伤性和非创伤性皮肤活检的转录组分析.
- 对细胞因子,β-酸酶和基细胞激活的系统分析.
主要成果:
- 62.5%的患者经历过渡性尿皮肤反应,主要是在第一次输液期间.
- 没有检测到FRα表达或MOv18 IgE与人体皮肤结合.
- 皮肤活检显示有炎症,但没有过敏透;全身标志物没有显示过敏反应.
结论:
- 对MOv18 IgE的疹性皮肤反应不太可能是由于过敏机制或皮肤抗原识别.
- 观察到的反应与单克隆抗体治疗中典型的输液相关反应一致.
- 需要对这些反应的机制进行进一步的研究.
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