Monoclonal antibodies against the nucleocapsid proteins of henipaviruses: production, epitope mapping and application in immunohistochemistry

文献类型: 外文期刊

第一作者: Xiao, C.

作者: Xiao, C.;Liu, Y.;Jiang, Y.;Guo, H.;Tu, C.;Magoffin, D. E.;Wang, L. -F.;Magoffin, D. E.;Wang, L. -F.;Xuan, H.;Wang, G.

作者机构:

期刊名称:ARCHIVES OF VIROLOGY ( 影响因子:2.574; 五年影响因子:2.466 )

ISSN: 0304-8608

年卷期: 2008 年 153 卷 2 期

页码:

收录情况: SCI

摘要: Four monoclonal antibodies (mAbs) were generated by immunizing BALB/C mice with recombinant nucleocapsid protein (N) of Nipah virus (NiV) and Hendra virus (HeV) expressed in E. coli. Two mAbs each were obtained for the HeV N and NiV N, respectively. All four mAbs displayed specific reactivity with the recombinant N proteins of both viruses by western blot, which was further confirmed by immunofluorescent antibody assay using fixed insect cells infected with recombinant baculoviruses expressing either the HeV or NiV N protein. Epitope mapping using a 12-mer random peptide phage display library revealed two linear antigenic sites of the henipavirus N proteins, KLxR (aa 17-20) and FKREM (aa 446-450), which have not been reported previously. Two of the mAbs were able to specifically recognize HeV antigens by immunohistochemical staining of lung tissue sections of a horse experimentally infected with HeV. These reagents will be a useful addition to the collection of tools essential for further research and improvement in diagnosis of henipaviruses.

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