Occludin‐binding single‐chain variable fragment and antigen‐binding fragment antibodies prevent hepatitis C virus infection

Occludin‐binding single‐chain variable fragment and antigen‐binding fragment antibodies prevent hepatitis C virus infection
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Occludin结合单链可变片段和抗原结合片段抗体可预防丙型肝炎病毒感染

DOI:
10.1002/1873-3468.13975
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发表时间:
2020
期刊:
影响因子:
3.5
通讯作者:
Fukasawa Masayoshi
Fukasawa Masayoshi
中科院分区:
生物学3区
文献类型:
--
作者:
Shimizu Yoshimi;Shinoda Takehiro;Shirasago Yoshitaka;Kondoh Masuo;Shinya Naoko;Hanada Kentaro;Yagi Kiyohito;Suzuki Tetsuro;Wakita Takaji;Kimura‐Someya Tomomi;Shirouzu Mikako;Fukasawa Masayoshi

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封闭蛋白(OCLN)是上皮紧密连接的四跨膜组分,并且是丙型肝炎病毒(HCV)的已知受体。以前,我们建立了功能性单克隆抗体(mAb),结合到OCLN的每个细胞外环,并显示出其预防体外和体内HCV感染的能力。在这项研究中,我们将这些mAb转化为相应的单价抗原结合片段(Fab)和单链可变片段(scFv)抗体。这些Fab片段和scFv抗体表现出与亲本抗OCLN mAb相似的结合特异性和亲和力。此外,Fab片段和scFv抗体抑制体外HCV感染。我们研究中报道的小功能单价OCLN结合探针具有很高的潜力,可作为OCLN生物学和药学研究的候选药物和工具。
Occludin (OCLN) is a tetraspan membrane component of epithelial tight junctions and a known receptor for hepatitis C virus (HCV). Previously, we established functional monoclonal antibodies (mAbs) that bind to each extracellular loop of OCLN and showed their ability to preventin vitroandin vivoHCV infection. In this study, we converted these mAbs to corresponding monovalent antigen‐binding fragments (Fabs) and single‐chain variable fragment (scFv) antibodies. These Fab fragments and scFv antibodies demonstrate similar binding specificity and affinity to parental anti‐OCLN mAbs. Moreover, Fab fragments and scFv antibodies inhibitin vitroHCV infection. The small functional monovalent OCLN‐binding probes reported in our study have high potential as drug candidates and tools for biological and pharmaceutical studies of OCLN.
免疫球蛋白结构。
DOI: --
发表时间: 2021
期刊: Immunology series
影响因子: --
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