人类I型干扰素保护Vero E6和ARPE-19细胞免受西尼罗河病毒的侵袭,并被致病性自身抗体中和
Alessandro Ferrari1,2, Irene Cassaniti3,4, Francesca Rovida5,2
1National PhD Programme in One Health approaches to infectious diseases and life science research, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.
Scientific reports
|April 2, 2025
概括
针对I型干扰素 (IFN) 的自抗体中和,使西尼罗病毒严重的疾病恶化. 一种ARPE-19细胞测定有效地模拟了I型IFN保护和自身抗体中和,有助于研究和临床应用.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 细胞生物学 细胞生物学
背景情况:
- 自动抗体中和I型干扰素 (IFN) 与严重的病毒感染有关,例如西尼罗病毒神经侵入性疾病 (WNND).
- 强大的体外模型对于评估I型IFN保护和病毒病原发生过程中的自身抗体干扰至关重要.
- 了解这些相互作用对于识别有风险的患者和制定治疗策略至关重要.
研究的目的:
- 建立和验证使用ARPE-19细胞的体外模型,以评估I型IFN对西尼罗病毒 (WNV) 感染的疗效.
- 研究针对WNV感染患者血清中的I型IFN自身抗体的中和作用.
- 为在研究和临床环境中评估抗病毒反应和自身抗体活性提供可靠的测试方法.
主要方法:
- 使用Vero E6和ARPE-19细胞系来测试I型 (IFN-α,IFN-β,IFN-ω),II型 (IFN-γ) 和III型 (IFN-λ1) 干扰素对WNV的抗病毒活性.
- 从WNV感染患者的血清样本中选了可以中和I型IFN的自身抗体.
- 评估了ARPE-19基于细胞的测定与检测中和性自身抗体的既定方法的一致性.
主要成果:
- IFN-α,IFN-β和IFN-ω在ARPE-19细胞中显示出对WNV的显著保护,其中IFN-β是最有效的.
- 维罗E6细胞需要更高的IFN-ω度来获得可比的保护,这表明细胞类型的特定反应.
- 在任何细胞系中,IFN-γ和IFN-λ1都没有提供保护,ARPE-19测定成功地确定了患者血清中的中和性自身抗体.
结论:
- ARPE-19细胞系作为研究I型IFN抗病毒活性对WNV的有效模型.
- 开发的试验可靠地检测出针对I型IFN的中和性自身抗体,与临床发现相关.
- 这个模型为WNV研究,患者风险分层和潜在的治疗开发提供了有价值的工具.
相关概念视频
Immune Response Against Viral Pathogens
705
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
705
Cross-reactivity
30.9K
Overview
30.9K
Antigens Involved in Adaptive Immunity
417
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
417


