Method for evaluating the neuraminidase activity of receptor-destroying enzyme (RDE) compounds using the influenza virus
- Authors: Fedorov A.Y.1,2, Zhirnov O.P.3,4
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Affiliations:
- D.I. Ivanovsky Institute of Virology, National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya
- I.M. Sechenov First Moscow State Medical University
- Doctor of Biological Sciences, Professor, Corresponding Member of the RAS, Head of the Laboratory of Viral Pathogenesis of National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya, Moscow, 123098
- Russian-German Academy of Medical and Biotechnological Sciences, Skolkovo Innovation Center
- Issue: Vol 65, No 2 (2020)
- Pages: 113-118
- Section: TO VIROLOGIST’S AID
- URL: https://journals.rcsi.science/0507-4088/article/view/118054
- DOI: https://doi.org/10.36233/0507-4088-2020-65-2-113-118
- ID: 118054
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Abstract
Introduction. The classic hemagglutination inhibition reaction (RTGA) is used to determine the level of antiviral antibodies in human and animal serum specimens. During the performance of RTGA the tested sera must be treated with a receptor-destroying enzyme (RDE) to remove serum glycans that degrade the accuracy of the RTGA results. To optimize the amounts of RDE compounds used, it is necessary to know their real neuraminidase activity. This article describes a simple and economical method for testing the neuraminidase activity of receptor-destroying compounds using standard reagents and laboratory equipment.
Aims of investigation. Design of an improved simple and convenient method for evaluating the neuraminidase activity using the flu virus.
Material and methods. Here, we propose a convenient method for evaluating the activity of neuraminidase by double-fold dilution procedure with human or animal erythrocytes followed by hemagglutination assay with influenza A virus.
Results and discussion. The method is based on the ability of neuraminidase to hydrolyze sialic acid residues on the cell surface of erythrocytes, that deprives red blood cells to be agglutinated with the flu virus, since these sialic glycans provide virus attachment and hemagglutination.
Conclusion. The designed method allows the accurate measurement of the receptor-destroying (neuraminidase) activity of RDE compounds and the comparison of the compounds with each other. This test is necessary to optimize the RTGA protocol when monitoring blood sera of animals and humans after influenza infection and/or Acute Respiratory diseases (ARD). The designed method can be included in the guidelines of regulations for the RTGA protocol, which is used in different laboratories to monitor the epidemic process of influenza and ARD infections.
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##article.viewOnOriginalSite##About the authors
Artem Yu. Fedorov
D.I. Ivanovsky Institute of Virology, National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya; I.M. Sechenov First Moscow State Medical University
Author for correspondence.
Email: noemail@neicon.ru
ORCID iD: 0000-0001-7503-6444
Oleg P. Zhirnov
Doctor of Biological Sciences, Professor, Corresponding Member ofthe RAS, Head of the Laboratory of Viral Pathogenesis of National Research Centre for Epidemiology and Microbiology named after the honorary academician N.F. Gamaleya, Moscow, 123098; Russian-German Academy of Medical and Biotechnological Sciences, Skolkovo Innovation Center
Email: zhirnov@inbox.ru
ORCID iD: 0000-0002-3192-8405
References
- Hirst G.K. The quantitative determination of influenza virus and antibodies by means of red cell agglutination. J. Exp. Med. 1942; 75(1): 49-64. DOI: http://doi.org/10.1084/jem.75.1.49
- Salk J.E. Simplified procedure for titrating hemagglutinating capacity of influenza virus and the corresponding antibody. J. Immunol. 1944; 49(2): 87-98.
- Liebowitz D., Gottlieb K., Kolhatkar N.S., Garg S.J., Asher J.M., Nazareno J., et al. Efficacy, immunogenicity, and safety of an oral influenza vaccine: a placebo-controlled and active-controlled phase 2 human challenge study. Lancet Infect. Dis. 2020; 20(4): 435-44. DOI: http://doi.org/10.1016/S1473-3099(19)30584-5
- Burnett F.M., Stone J.D. The receptor destroying enzyme of Vibrio Cholerae. Aust. J. Exp. Biol. Med. Sci. 1947; 25: 227-33.
- Жирнов О.П. Биохимические вариации цитолитического действия ортомиксо- и парамиксовирусов в культуре клеток из легочной опухоли человека. Биохимия. 2017; 82(9): 1345-53.
- Bradford M.M. A rapid and sensitive method for the quantification of microgram quantities of protein utilizing the principle of proteindye binding. Anal. Biochem. 1976; 72(1-2): 248-54. DOI: http://doi.org/10.1006/abio.1976.9999
- Ernst O., Zor T. Linearization of the Bradford protein assay. J. Vis. Exp. 2010; (38): pii 1918. DOI: http://doi.org/10.3791/1918
- Leang S.K., Hurt A.C. Fluorescence-based neuraminidase inhibition assay to assess the susceptibility of influenza viruses to the neuraminidase inhibitor class of antivirals. J. Vis. Exp. 2017; (122): e55570. DOI: http://doi.org/10.3791/55570
- Viswanathan K., Chandrasekaran A., Srinivasan A., Raman R., Sasisekharan V., Sasisekharan R. Glycans as receptors for influenza pathogenesis. Glycoconj J. 2010; 27(6): 561-70. DOI: http://doi.org/10.1007/s10719-010-9303-4
- Mayr J., Lau K., Lai J.C.C., Gagarinov I.A., Shi Y., McAtamney S., et al. Unravelling the role of o-glycans in influenza a virus infection. Sci. Rep. 2018; 8(1): 16382. DOI: http://doi.org/10.1038/s41598-018-34175-3
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