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Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens

Foot-and-mouth disease (FMD), caused by the FMD virus (FMDV), is controlled by vaccine policy in many countries. For vaccine potency, the content of intact virus particles (146S antigens) is critical, and the sucrose density gradient (SDG) fractionation is the gold standard for the quantification of...

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Autores principales: Kim, Ah-Young, Park, Sun Young, Park, Sang Hyun, Jin, Jong Sook, Kim, Eun-Sol, Kim, Jae Young, Park, Jong-Hyeon, Ko, Young-Joon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8624908/
https://www.ncbi.nlm.nih.gov/pubmed/34835292
http://dx.doi.org/10.3390/vaccines9111361
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author Kim, Ah-Young
Park, Sun Young
Park, Sang Hyun
Jin, Jong Sook
Kim, Eun-Sol
Kim, Jae Young
Park, Jong-Hyeon
Ko, Young-Joon
author_facet Kim, Ah-Young
Park, Sun Young
Park, Sang Hyun
Jin, Jong Sook
Kim, Eun-Sol
Kim, Jae Young
Park, Jong-Hyeon
Ko, Young-Joon
author_sort Kim, Ah-Young
collection PubMed
description Foot-and-mouth disease (FMD), caused by the FMD virus (FMDV), is controlled by vaccine policy in many countries. For vaccine potency, the content of intact virus particles (146S antigens) is critical, and the sucrose density gradient (SDG) fractionation is the gold standard for the quantification of 146S antigens. However, this method has several drawbacks. Although size-exclusion high-performance liquid chromatography (SE-HPLC) was introduced to replace the classic method, its application is generally confined to purified samples owing to the interfering signals. Therefore, we aimed to develop optimal pretreatment methods for SE-HPLC quantification in less purified samples. Crude virus infection supernatant (CVIS) and semi-purified samples with PEG precipitation (PEG-P) were used. Chloroform pretreatment was essential to remove a high level of non-specific signals in CVIS, whereas it caused loss of 146S antigens without the distinctive removal of non-specific signals in PEG-P. Benzonase pretreatment was required to improve the resolution of the target peak in the chromatogram for both CVIS and PEG-P. Through spiking tests with pure 146S antigens, it was verified that the combined pretreatment with chloroform and benzonase was optimal for the CVIS, while the sole pretreatment of benzonase was beneficial for PEG-P.
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spelling pubmed-86249082021-11-27 Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens Kim, Ah-Young Park, Sun Young Park, Sang Hyun Jin, Jong Sook Kim, Eun-Sol Kim, Jae Young Park, Jong-Hyeon Ko, Young-Joon Vaccines (Basel) Article Foot-and-mouth disease (FMD), caused by the FMD virus (FMDV), is controlled by vaccine policy in many countries. For vaccine potency, the content of intact virus particles (146S antigens) is critical, and the sucrose density gradient (SDG) fractionation is the gold standard for the quantification of 146S antigens. However, this method has several drawbacks. Although size-exclusion high-performance liquid chromatography (SE-HPLC) was introduced to replace the classic method, its application is generally confined to purified samples owing to the interfering signals. Therefore, we aimed to develop optimal pretreatment methods for SE-HPLC quantification in less purified samples. Crude virus infection supernatant (CVIS) and semi-purified samples with PEG precipitation (PEG-P) were used. Chloroform pretreatment was essential to remove a high level of non-specific signals in CVIS, whereas it caused loss of 146S antigens without the distinctive removal of non-specific signals in PEG-P. Benzonase pretreatment was required to improve the resolution of the target peak in the chromatogram for both CVIS and PEG-P. Through spiking tests with pure 146S antigens, it was verified that the combined pretreatment with chloroform and benzonase was optimal for the CVIS, while the sole pretreatment of benzonase was beneficial for PEG-P. MDPI 2021-11-19 /pmc/articles/PMC8624908/ /pubmed/34835292 http://dx.doi.org/10.3390/vaccines9111361 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kim, Ah-Young
Park, Sun Young
Park, Sang Hyun
Jin, Jong Sook
Kim, Eun-Sol
Kim, Jae Young
Park, Jong-Hyeon
Ko, Young-Joon
Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens
title Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens
title_full Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens
title_fullStr Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens
title_full_unstemmed Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens
title_short Validation of Pretreatment Methods for the In-Process Quantification of Foot-and-Mouth Disease Vaccine Antigens
title_sort validation of pretreatment methods for the in-process quantification of foot-and-mouth disease vaccine antigens
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8624908/
https://www.ncbi.nlm.nih.gov/pubmed/34835292
http://dx.doi.org/10.3390/vaccines9111361
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