MERS-CoV spike nanoparticles protect mice from MERS-CoV infection

Vaccine. 2017 Mar 14;35(12):1586-1589. doi: 10.1016/j.vaccine.2017.02.012. Epub 2017 Feb 23.

Abstract

The Middle East respiratory syndrome coronavirus (MERS-CoV) was first discovered in late 2012 and has gone on to cause over 1800 infections and 650 deaths. There are currently no approved therapeutics or vaccinations for MERS-CoV. The MERS-CoV spike (S) protein is responsible for receptor binding and virion entry to cells, is immunodominant and induces neutralizing antibodies in vivo, all of which, make the S protein an ideal target for anti-MERS-CoV vaccines. In this study, we demonstrate protection induced by vaccination with a recombinant MERS-CoV S nanoparticle vaccine and Matrix-M1 adjuvant combination in mice. The MERS-CoV S nanoparticle vaccine produced high titer anti-S neutralizing antibody and protected mice from MERS-CoV infection in vivo.

Keywords: Coronavirus; MERS-CoV; Mouse model; Nanoparticle vaccine.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adjuvants, Immunologic / administration & dosage
  • Animals
  • Antibodies, Neutralizing / blood
  • Antibodies, Viral / blood
  • Coronavirus Infections / prevention & control*
  • Disease Models, Animal
  • Mice, Inbred BALB C
  • Middle East Respiratory Syndrome Coronavirus / genetics
  • Middle East Respiratory Syndrome Coronavirus / immunology*
  • Spike Glycoprotein, Coronavirus / genetics
  • Spike Glycoprotein, Coronavirus / immunology*
  • Vaccines, Synthetic / administration & dosage
  • Vaccines, Synthetic / genetics
  • Vaccines, Synthetic / immunology
  • Vaccines, Virus-Like Particle / administration & dosage
  • Vaccines, Virus-Like Particle / genetics
  • Vaccines, Virus-Like Particle / immunology*
  • Viral Vaccines / administration & dosage
  • Viral Vaccines / genetics
  • Viral Vaccines / immunology*

Substances

  • Adjuvants, Immunologic
  • Antibodies, Neutralizing
  • Antibodies, Viral
  • Spike Glycoprotein, Coronavirus
  • Vaccines, Synthetic
  • Vaccines, Virus-Like Particle
  • Viral Vaccines