News Release

感染安第斯汉坦病毒的人类幸存者抗体可保护鼠类免于该病毒的感染

Peer-Reviewed Publication

American Association for the Advancement of Science (AAAS)

Antibodies from Human Survivors of Andes Hantavirus Protect Rodents Against Infection (1 of 1)

image: The researchers incubated the MIB22 antibody (green) with human kidney cells coated with a protein from Andean hantavirus (blue). This material relates to a paper that appeared in the Nov. 21, 2018, issue of <i>Science Translational Medicine</i>, published by AAAS. The paper, by J.L. Garrido at Universidad de Concepci&oacute;n in Concepci&oacute;n, Chile; and colleagues was titled, "Two recombinant human monoclonal antibodies that protect against lethal Andes hantavirus infection in vivo." view more 

Credit: J.L. Garrido <i>et al., Science Translational Medicine </i>(2018)

Jose Garrido和同事从感染安第斯汉坦病毒(ANDV)的人类幸存者体内分离到了抗体,后者能保护仓鼠不受该致命疾病的伤害。在感染后给予这些抗体甚至也能令仓鼠得到保护,表明这些抗体可被用作感染后的疾病预防性治疗,目前尚无治愈该病的选项。汉坦病毒感染是由鼠类传播给人的;由于它们会导致很高的死亡率而引起严重关注。ANDV感染会导致一种被称作汉坦病毒心肺综合征(HCPS)的极端危险疾病,后者会引起发烧、头痛、低血压及心肺衰竭。ANDV是南美洲HCPS病例的主要病因,它是唯一能在人与人之间传播的汉坦病毒。在人中所做的数项研究显示,中和抗体反应的产生与HCPS后的存活存在强相关性。Garrido等人怀疑,从先前罹患HCPS的幸存患者体内分离的抗体可被用做治疗制剂,他们对27名罹患HCPC的智利病人的血清样本进行了检查,并对这些患者的抗体的中和ANDV的功效进行了筛检。他们发现有一位患者有着特别看好的中和ANDV能力;他们从该病人体内分离出了B记忆细胞,并对两种能识别及中和ANDV的抗体(被命名为MIB22和JL16)进行了研究。作者说,在给予这两种抗体后,它们可100%地防止仓鼠(它们在3天前接受了致死剂量的HNDV)罹患HCPS,表明这两种抗体或能在单独或联合给予时成为治疗HCPS的支柱。

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