中和的GM-CSF自身抗体损害了中性粒细胞抗真菌效应的功能,在患有阿斯伯吉洛症的患者中
Andrew L Wishart1, Joseph Pechacek1, Lindsey B Rosen2
1Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology (LCIM), National Institute of Allergy & Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA.
The Journal of infection
|August 14, 2025
概括
侵袭性阿斯伯吉洛症发生在一个患有针对粒细胞巨菌群刺激因子 (GM-CSF) 中和自抗体 (Aabs) 的患者身上. 这些GM-CSF Aabs损害了中性粒细胞的功能,导致真菌感染易感性.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
- 血液学 血液学 血液学
背景情况:
- 侵入性阿斯伯吉洛症通常会影响免疫力低下的个体.
- 针对颗粒细胞-巨细胞殖民地刺激因子 (GM-CSF) 的自身抗体 (Aabs) 可以损害中性粒细胞的功能.
- 在免疫能力强的宿主中,GM-CSF Aabs与侵入性真菌感染之间的相互作用尚未得到充分理解.
研究的目的:
- 报告一个入侵性阿斯伯吉洛斯病例,该病例发生在一个具有中和GM-CSF Aabs的假定免疫能力的患者身上.
- 调查GM-CSF Aabs对中性粒细胞抗阿斯伯吉卢斯效应体功能的影响.
- 描述GM-CSF Aabs在侵袭性菌病中的临床影响.
主要方法:
- 使用成像和组织学来诊断 sino-orbital aspergillosis.
- 全基因组测序 (WGS) 排除免疫的先天性错误.
- 对患者中性粒细胞的功能测试评估杀死真菌,ROS生产和GM-CSF信号.
主要成果:
- 一名61岁的妇女出现了耐火性阴道轨道阿斯伯吉洛症和高位中和GM-CSF Aabs.
- 通过WGS.没有发现潜在的免疫缺陷.
- 患者含有GM-CSF Aabs的血清抑制了GM-CSF介导的中性粒细胞激活和阿斯伯吉路斯诱导的ROS产生.
结论:
- 侵入性阿斯伯吉洛症可以发生在具有中和GM-CSF Aabs的免疫能力强的个体中,即使没有肺膜蛋白质病 (PAP).
- 转基因-CSF Aabs通过损害中性粒细胞的抗真菌活性,有助于敏感性.
- 对于具有侵入性菌感染的免疫能力强的患者,建议对GM-CSF Aabs进行测试.
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