Detection of Nipah and Hendra Viruses Using Recombinant Human Ephrin B2 Capture Virus in Immunoassays

Viruses. 2022 Jul 28;14(8):1657. doi: 10.3390/v14081657.

Abstract

Nipah virus (NiV) and Hendra virus (HeV) are classified as high-consequence zoonotic viruses characterized by high pathogenicity and high mortality in animals and humans. Rapid diagnosis is essential to containing the outbreak. In this study, the henipavirus receptor ephrin B2 was examined to determine whether it could be used as a universal ligand for henipavirus detection in immunoassays. Enzyme-linked immunosorbent assays (ELISAs) were developed using recombinant ephrin B2 as the capture ligand and two monoclonal antibodies (mAbs) as detection reagents. Using mAb F27NiV-34, which cross-reacts with NiV and HeV, we were able to detect NiV and HeV, while mAb F20NiV-65 was used to detect NiV. Therefore, using these two ELISAs, we were able to differentiate between NiV and HeV. Furthermore, we developed a rapid lateral flow strip test for NiV detection using ephrin B2 as the capture ligand combined with mAb F20NiV-65 as the detector. Taken together, our results show that the combination of ephrin B2 and a specific mAb provides an excellent pairing for NiV and HeV detection.

Keywords: ELISA; ephrin B2; glycoprotein; hendra virus; henipavirus; immunoassay; lateral flow strip test; nipah virus; receptor.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antibodies, Monoclonal
  • Enzyme-Linked Immunosorbent Assay
  • Ephrin-B2
  • Hendra Virus*
  • Henipavirus Infections* / diagnosis
  • Humans
  • Ligands
  • Nipah Virus*
  • Orthopoxvirus*

Substances

  • Antibodies, Monoclonal
  • Ephrin-B2
  • Ligands

Grants and funding

This research was funded by the Canadian Safety and Security Program (CSSP-2019-CP-2449). In-kind support was provided by the Canadian Food Inspection Agency (CFIA).