A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variants

The emergence of severe acute respiratory syndrome coronavirus type II (SARS-CoV-2) variants have led to a decline in the protection of existing vaccines and antibodies, and there is an urgent need for a broad-spectrum vaccination strategy to reduce the pressure on the prevention and control of the...

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Main Authors: Huifang Xu, Tiantian Wang, Peng Sun, Xuchen Hou, Xin Gong, Bin Zhang, Jun Wu, Bo Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2022.1093080/full
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author Huifang Xu
Tiantian Wang
Peng Sun
Xuchen Hou
Xin Gong
Bin Zhang
Jun Wu
Bo Liu
author_facet Huifang Xu
Tiantian Wang
Peng Sun
Xuchen Hou
Xin Gong
Bin Zhang
Jun Wu
Bo Liu
author_sort Huifang Xu
collection DOAJ
description The emergence of severe acute respiratory syndrome coronavirus type II (SARS-CoV-2) variants have led to a decline in the protection of existing vaccines and antibodies, and there is an urgent need for a broad-spectrum vaccination strategy to reduce the pressure on the prevention and control of the pandemic. In this study, the receptor binding domain (RBD) of the SARS-CoV-2 Beta variant was successfully expressed through a glycoengineered yeast platform. To pursue a more broad-spectrum vaccination strategy, RBD-Beta and RBD-wild type were mixed at the ratio of 1:1 with Al(OH)3 and CpG double adjuvants for the immunization of BALB/c mice. This bivalent vaccine stimulated robust conjugated antibody titers and a broader spectrum of neutralizing antibody titers. These results suggested that a bivalent vaccine of RBD-Beta and RBD-wild type could be a possible broad-spectrum vaccination strategy.
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spelling doaj.art-46ca1d0407b04a2b8a546b1a2832dc712023-01-10T19:16:36ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-01-011310.3389/fmicb.2022.10930801093080A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variantsHuifang XuTiantian WangPeng SunXuchen HouXin GongBin ZhangJun WuBo LiuThe emergence of severe acute respiratory syndrome coronavirus type II (SARS-CoV-2) variants have led to a decline in the protection of existing vaccines and antibodies, and there is an urgent need for a broad-spectrum vaccination strategy to reduce the pressure on the prevention and control of the pandemic. In this study, the receptor binding domain (RBD) of the SARS-CoV-2 Beta variant was successfully expressed through a glycoengineered yeast platform. To pursue a more broad-spectrum vaccination strategy, RBD-Beta and RBD-wild type were mixed at the ratio of 1:1 with Al(OH)3 and CpG double adjuvants for the immunization of BALB/c mice. This bivalent vaccine stimulated robust conjugated antibody titers and a broader spectrum of neutralizing antibody titers. These results suggested that a bivalent vaccine of RBD-Beta and RBD-wild type could be a possible broad-spectrum vaccination strategy.https://www.frontiersin.org/articles/10.3389/fmicb.2022.1093080/fullSARS-CoV-2RBDsubunit vaccinebivalent vaccineglycoengineered yeast
spellingShingle Huifang Xu
Tiantian Wang
Peng Sun
Xuchen Hou
Xin Gong
Bin Zhang
Jun Wu
Bo Liu
A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variants
Frontiers in Microbiology
SARS-CoV-2
RBD
subunit vaccine
bivalent vaccine
glycoengineered yeast
title A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variants
title_full A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variants
title_fullStr A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variants
title_full_unstemmed A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variants
title_short A bivalent subunit vaccine efficiently produced in Pichia pastoris against SARS-CoV-2 and emerging variants
title_sort bivalent subunit vaccine efficiently produced in pichia pastoris against sars cov 2 and emerging variants
topic SARS-CoV-2
RBD
subunit vaccine
bivalent vaccine
glycoengineered yeast
url https://www.frontiersin.org/articles/10.3389/fmicb.2022.1093080/full
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