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Viruses 2016, 8(9), 254; doi:10.3390/v8090254

Quantification of Lyssavirus-Neutralizing Antibodies Using Vesicular Stomatitis Virus Pseudotype Particles

1
Institut für Virologie und Immunologie (IVI), Abteilung Virologie, CH-3147 Mittelhäusern, Switzerland
2
Max von Pettenkofer-Institut und Genzentrum, Ludwig-Maximilians-Universität, D-81377 München, Germany
3
Paul-Ehrlich-Institut, Abteilung Veterinärmedizin, D-63225 Langen, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Curt Hagedorn
Received: 11 July 2016 / Revised: 23 August 2016 / Accepted: 8 September 2016 / Published: 16 September 2016
(This article belongs to the Section Antivirals & Vaccines)
View Full-Text   |   Download PDF [1848 KB, uploaded 16 September 2016]   |  

Abstract

Rabies is a highly fatal zoonotic disease which is primarily caused by rabies virus (RABV) although other members of the genus Lyssavirus can cause rabies as well. As yet, 14 serologically and genetically diverse lyssaviruses have been identified, mostly in bats. To assess the quality of rabies vaccines and immunoglobulin preparations, virus neutralization tests with live RABV are performed in accordance with enhanced biosafety standards. In the present work, a novel neutralization test is presented which takes advantage of a modified vesicular stomatitis virus (VSV) from which the glycoprotein G gene has been deleted and replaced by reporter genes. This single-cycle virus was trans-complemented with RABV envelope glycoprotein. Neutralization of this pseudotype virus with RABV reference serum or immune sera from vaccinated mice showed a strong correlation with the rapid fluorescent focus inhibition test (RFFIT). Importantly, pseudotype viruses containing the envelope glycoproteins of other lyssaviruses were neutralized by reference serum to a significantly lesser extent or were not neutralized at all. Taken together, a pseudotype virus system has been successfully developed which allows the safe, fast, and sensitive detection of neutralizing antibodies directed against different lyssaviruses. View Full-Text
Keywords: virus neutralization; pseudotype virus; rabies virus; luciferase; biosafety; vaccine; immunoglobulin virus neutralization; pseudotype virus; rabies virus; luciferase; biosafety; vaccine; immunoglobulin
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Moeschler, S.; Locher, S.; Conzelmann, K.-K.; Krämer, B.; Zimmer, G. Quantification of Lyssavirus-Neutralizing Antibodies Using Vesicular Stomatitis Virus Pseudotype Particles. Viruses 2016, 8, 254.

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