PMID: 28502308May 16, 2017Paper

Preparation and identification of monoclonal antibody against H1N1 influenza virus

Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology
Yang LiuJun Hu

Abstract

Objective To prepare the monoclonal antibody (mAb) against influenza A virus (H1N1) using purified viral particles as antigen and investigate the characterization of host cells infected with influenza virus utilizing the mAb. Methods A/PR/8 (H1N1) virus was cultured in embryonated chicken eggs and further purified by differential and density gradient centrifugation. The structure of viral particles was identified by transmission electron microcopy (TEM). Immunogenicity of purified virus was evaluated by Balb/c mice immunized with formalin-inactivated virus. Hybridomas secreting mAbs were established through a fusion of Sp2/0 myeloma cells and splenocytes from the mice immunized with the virus. The characteristics of mAb were identified by ELISA, immunofluorescence assay (IFA), Western blotting, hemagglutinin inhibition assay (HI) and microneutralization assay. The outside hemagglutinin (HA) on the plasma membrane of the host MDCK cells in which the viruses were propagated and the apoptosis of MDCK cells infected with the viruses were measured using flow cytometry. Cell-based ELISA was established using mAb specific to HA. Subsequently, the growth of virus was analyzed by cell-based ELISA. Results Transmission electron microscop...Continue Reading

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