Method of obtaining purified SARS-CoV-2 antigen for structural and immunological studies in whole-virion vaccines against coronavirus infection
- Authors: Zyrina A.N.1, Tselykh I.O.1, Bogdan A.S.1,2, Kovpak A.1, Ivin Y.Y.1, Vasilenko V.E.1, Piniaeva A.N.1, Shishova А.A.1,3
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Affiliations:
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences
- MIREA — Russian Technological University
- Sechenov First Moscow State Medical Univesity
- Issue: Vol 22, No 2 (2022)
- Pages: 183-189
- Section: Conference proceedings
- URL: https://bakhtiniada.ru/MAJ/article/view/108681
- DOI: https://doi.org/10.17816/MAJ108681
- ID: 108681
Cite item
Abstract
BACKGROUND: Despite the large-scale development of vaccines against coronavirus infection, there is still no complete information about the antigenic structure of the SARS-CoV-2 virus particles. This article describes a method of obtaining a pure concentrated whole-virion sample that can be used in various studies.
AIM: The goal is to develop an optimal method of purification of the inactivated SARS-CoV-2 virus in order to obtain a standard with parameters of purity and antigen content sufficient for structural and immunological studies.
MATERIALS AND METHODS: To obtain a pure concentrated virus SARS-CoV-2 we used the sucrose density gradient ultracentrifugation. Fractions with the highest content of viral particles were evaluated based on the concentration of nucleocapsid N and glycoprotein S. The purity of the pooled fractions (the purified sample) was evaluated by the presence of impurity proteins, toxins and bovine serum albumin.
RESULTS: The optimal conditions for obtaining the inactivated purified SARS-CoV-2 whole virus were determined. A standard sample of the inactivated SARS-CoV-2 virus was isolated and characterized.
CONCLUSIONS: The obtained standard sample can be used in enzyme immunoassay to measure the amount of antigen in whole-virion vaccines against coronavirus infection, as well as in various structural studies of SARS-CoV-2 virus particle.
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##article.viewOnOriginalSite##About the authors
Anna N. Zyrina
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences
Author for correspondence.
Email: zyrina22anna@gmail.com
ORCID iD: 0000-0002-3675-8361
Scopus Author ID: 57041299900
Cand. Sci. (Biol.), Microbiologist of Analytical Method Development and Validation Team
Russian Federation, MoscowIrina O. Tselykh
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences
Email: will-uhm@mail.ru
ORCID iD: 0000-0002-7530-3925
Microbiologist of Analytical Method Development and Validation Team
Russian Federation, MoscowAnastasia S. Bogdan
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences; MIREA — Russian Technological University
Email: nastyabog1346@gmail.com
group laboratory assistant of Analytical Method Development and Validation Team; Bachelor of M.V. Lomonosov Institute of Fine Chemical Technologies
Russian Federation, Moscow; MoscowAnastasia Kovpak
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences
Email: kovpak_aa@chumakovs.su
ORCID iD: 0000-0003-3200-763X
Scopus Author ID: 57218547079
Head of Team of Purification Processes and Finished Dosage Forms Formulation
Russian Federation, MoscowYury Yu. Ivin
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences
Email: ivin_uu@chumakovs.su
ORCID iD: 0000-0003-0995-7944
Scopus Author ID: 57218552209
Deputy Head of Division of Development and Integration of Innovative and Semi-industrial Technologies
Russian Federation, MoscowVladislav E. Vasilenko
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences
Email: vasilenko_ve@chumakovs.su
ORCID iD: 0000-0001-7980-0921
Scopus Author ID: 41361884300
ResearcherId: A-1043-2015
Head of Fermentation and Cultivation Team
Russian Federation, MoscowAnastasia N. Piniaeva
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences
Email: pinyaeva_an@chumakovs.su
ORCID iD: 0000-0001-5381-2393
Scopus Author ID: 57218545661
Head of Division of Development and Integration of Innovative and Semi-industrial Technologies
Russian Federation, MoscowАnna A. Shishova
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences; Sechenov First Moscow State Medical Univesity
Email: shishova_aa@chumakovs.su
ORCID iD: 0000-0002-5907-0615
Scopus Author ID: 57222487150
Research Associate in Laboratory of Biochemistry; Senior Lecturer in Institute for Translational Medicine and Biotechnology
Russian Federation, Moscow; MoscowReferences
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