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一对非竞争性单克隆抗体对抗Langya henipavirus附着糖蛋白的结构和功能
Wenting Li1, Songyue Wu2, Qi Gui1
1Institute for Hepatology, National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, The Second Affiliated Hospital, School of Medicine, Southern University of Science and Technology, Shenzhen 518112, Guangdong, China.
Cell reports
|October 10, 2025
概括
研究人员开发了新的单克隆抗体,向Langya海尼帕病毒 (LayV) G蛋白. 这些抗体表现出强大的抗病毒活性,并揭示了未来疗法和疫苗的关键病毒结构.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 结构生物学 结构生物学
背景情况:
- 朗格亚赫尼帕病毒 (LayV) 是一个属帕拉赫尼帕病毒 (Para-HNV) 的动物性病毒,最近在中国被发现.
- 附着糖蛋白 (G) 对于尼病毒的进入至关重要,也是免疫干预的主要目标.
- 莱维-G显示了与亨德拉病毒 (HEV) 和尼帕病毒 (NiV) G蛋白的抗原差异,可能限制交叉保护性免疫力.
研究的目的:
- 开发和描述针对LayV G蛋白的新型单克隆抗体 (mAbs).
- 调查mAbs. 认可LayV-G的结构性基础.
- 为设计针对LayV的特定疗法和疫苗提供基础.
主要方法:
- 用LayV G ectodomain对小鼠进行免疫接种.
- 抗LayV-G mAbs. 的分离和表征.
- 电子显微镜 (cryo-EM) 用于对mAb-LayV-G复合物的结构性确定.
- 评估mAbs.的Fc介导抗病毒功能的评估.
主要成果:
- 创建了一个LayV-G特定的mAbs面板.
- 两种强效的mAbs表现出显著的Fc介导抗病毒活性.
- 冷-EM结构显示了mAb与2.92 Å分辨率的LayV-G头部域上的不同的表位结合.
- 结构数据阐明了抗体识别机制和LayV-G形态动态.
结论:
- 在Langya henipavirus G蛋白上定义了两个功能性表位.
- 确定的mAbs为开发向抗病毒疗法提供了基础.
- 结构洞察力促进了针对LayV.的合理疫苗设计.
关键词:
ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC ADCC is also known as ADCC ADCC ADCC is also known as ADCC在ADCP中,ADCP是ADCP.CP: 免疫学 免疫学CP: 微生物学 微生物学朗格亚henipavirus病毒是什么意思附着性糖蛋白是一种附着性糖蛋白.具有约束力的表皮图.化-EM结构的结构.这是一种单克隆抗体.
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