Broadly neutralizing antibodies abrogate established hepatitis C virus infection.

Broadly neutralizing antibodies abrogate established hepatitis C virus infection.
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大致中和抗体消除了乙型肝炎病毒感染。

DOI:
10.1126/scitranslmed.3009512
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发表时间:
2014-09-17
影响因子:
17.1
通讯作者:
Ploss A
Ploss A
中科院分区:
医学1区
文献类型:
--
作者:
de Jong YP;Dorner M;Mommersteeg MC;Xiao JW;Balazs AB;Robbins JB;Winer BY;Gerges S;Vega K;Labitt RN;Donovan BM;Giang E;Krishnan A;Chiriboga L;Charlton MR;Burton DR;Baltimore D;Law M;Rice CM;Ploss A

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丙型肝炎病毒(丙型肝炎病毒)在大多数接触过丙型肝炎的人中建立起慢性感染,并可导致肝硬变和肝细胞癌。针对丙型肝炎病毒抗体在疾病进展中的作用还知之甚少。中和抗体可在体外和动物模型中预防丙型肝炎病毒感染。然而,nabs对已确定的丙型肝炎病毒感染的影响尚不清楚。在这里,我们证明了三种广泛的NAB,AR3A,AR3B和AR4A,与腺相关病毒(AAV)载体一起传递可以在人源化的小鼠中提供针对病毒挑战的保护。此外,我们提供的证据表明,在原代肝细胞培养和人肝嵌合小鼠模型中,NABS可以消除持续的丙型肝炎病毒感染。这些结果展示了一种干预丙型肝炎病毒感染的新的治疗方法,该方法利用了以前未被认识到的丙型肝炎病毒持续感染新的肝细胞以维持慢性化的需要。
Hepatitis C virus (HCV) establishes a chronic infection in the majority of exposed individuals and can cause cirrhosis and hepatocellular carcinoma. The role of antibodies directed against HCV in disease progression is poorly understood. Neutralizing antibodies (nAbs) can prevent HCV infection in vitro and in animal models. However, the effects of nAbs on an established HCV infection are unclear. Here, we demonstrate that three broadly nAbs, AR3A, AR3B and AR4A, delivered with adeno-associated viral (AAV) vectors can confer protection against viral challenge in humanized mice. Furthermore, we provide evidence that nAbs can abrogate an ongoing HCV infection in primary hepatocyte cultures and in a human liver chimeric mouse model. These results showcase a novel therapeutic approach to interfere with HCV infection exploiting a previously unappreciated need for HCV to continuously infect new hepatocytes in order to sustain chronicity.
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发表时间: 2007-08-01
影响因子: 46.9
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