Combination therapy protects macaques against advanced Marburg virus disease.

Combination therapy protects macaques against advanced Marburg virus disease.
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DOI:
10.1038/s41467-021-22132-0
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发表时间:
2021-03-25
影响因子:
16.6
通讯作者:
Geisbert TW
Geisbert TW
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Cross RW;Bornholdt ZA;Prasad AN;Borisevich V;Agans KN;Deer DJ;Abelson DM;Kim DH;Shestowsky WS;Campbell LA;Bunyan E;Geisbert JB;Fenton KA;Zeitlin L;Porter DP;Geisbert TW

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单克隆抗体(mAb)和Remdesivir(一种小分子抗病毒药物)是许多病毒的有希望的单一疗法,包括马尔堡病毒属和埃博拉病毒属(丝状病毒科)的成员,以及最近的SARS-CoV-2。急性病毒感染的主要挑战之一是晚期疾病的治疗。因此,扩大治疗干预的窗口至关重要。在此,我们探讨了单克隆抗体和瑞德西韦联合治疗马尔堡病毒(MARV)病的非人灵长类动物模型的益处。虽然当在MARV接种后5天(dpi)开始用人mAb(MR 186-YTE; 100%)或瑞德西韦(80%)治疗时,恒河猴被保护免于致死性感染,但是当从6 dpi开始单独开始任一治疗时,没有动物存活。然而,通过从6 dpi开始将MR 186-YTE与remdesivir组合,实现了显著的保护(80%),从而延长了治疗窗。这些结果表明,在晚期丝状病毒病患者中探索联合治疗的价值。延长急性病毒感染的治疗窗口可以挽救生命。在这里,作者表明,在感染马尔堡病毒后6天开始的人单克隆抗体和Remdesivir的联合治疗在非人灵长类动物中提供了80%的保护。
Monoclonal antibodies (mAbs) and remdesivir, a small-molecule antiviral, are promising monotherapies for many viruses, including members of the genera Marburgvirus and Ebolavirus (family Filoviridae), and more recently, SARS-CoV-2. One of the major challenges of acute viral infections is the treatment of advanced disease. Thus, extending the window of therapeutic intervention is critical. Here, we explore the benefit of combination therapy with a mAb and remdesivir in a non-human primate model of Marburg virus (MARV) disease. While rhesus monkeys are protected against lethal infection when treatment with either a human mAb (MR186-YTE; 100%), or remdesivir (80%), is initiated 5 days post-inoculation (dpi) with MARV, no animals survive when either treatment is initiated alone beginning 6 dpi. However, by combining MR186-YTE with remdesivir beginning 6 dpi, significant protection (80%) is achieved, thereby extending the therapeutic window. These results suggest value in exploring combination therapy in patients presenting with advanced filovirus disease. Extending the therapeutic window for acute viral infections could save lives. Here, the authors show that combination treatment with a human monoclonal antibody and remdesivir initiated at 6 days post infection with Marburg virus provides 80% protection in non-human primates.
马堡病毒中和人类单克隆抗体MR191靶向一个保守的位点,以阻止病毒受体结合。
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