人类单克隆抗体作为预防子中SARS冠状病毒感染的预防措施
Jan ter Meulen1, Alexander B H Bakker, Edward N van den Brink
1Crucell Holland BV, Leiden, Netherlands. j.termeulen@crucell.com
Lancet (London, England)
|June 29, 2004
概括
一种人类单克隆抗体有效地预防了鱼的SARS冠状病毒感染. 这种抗体减少了病毒的复制,预防了肺病理,并阻止了病毒的分泌,为严重急性呼吸系统综合征提供了潜在的预防措施.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 肺部病理学 肺部病理学
背景情况:
- 严重急性呼吸系统综合征 (SARS) 的零星病例继续发生,由SARS冠状病毒引起.
- 目前,对于SARS冠状病毒疾病,没有有效的免疫预防方案.
研究的目的:
- 为了研究中和人类单克隆抗体对SARS冠状病毒感染的预防疗效.
- 评估抗体在动物模型中防止病毒复制,肺病理和病毒泄露的能力.
主要方法:
- 易受SARS冠状病毒感染的被用作动物模型.
- 进行了10mg/kg剂量的人类单克隆抗体的预防性施用.
- 评估了肺部的病毒复制,宏观的肺病理,以及喉分泌物中的病毒泄露.
主要成果:
- 预防性抗体的使用显著减少了鱼肺中的SARS冠状病毒复制的3.3日志 (p<0.001).
- 单克隆抗体完全阻止了SARS冠状病毒引起的宏观肺病理的发展 (p=0.013).
- 在预防性抗体治疗后,喉分泌物中的病毒分泌被废除.
结论:
- 人类单克隆抗体对子中SARS冠状病毒感染表现出显著的预防疗效.
- 这种抗体可能是控制人类SARS冠状病毒感染的可行和有效策略.
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