Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in Mice

A recent study showed that patients with coronavirus disease 2019 (COVID-19) have gastrointestinal symptoms and intestinal flora dysbiosis. Yeast probiotics shape the gut microbiome and improve immune homeostasis. In this study, an oral candidate of yeast-derived spike protein receptor-binding domai...

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Main Authors: Lilin Zhang, Lan Yao, Yanyu Guo, Xiaoyang Li, Li Ma, Ruiqi Sun, Xueqing Han, Jing Liu, Jinhai Huang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2022.792532/full
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author Lilin Zhang
Lan Yao
Yanyu Guo
Xiaoyang Li
Li Ma
Ruiqi Sun
Xueqing Han
Jing Liu
Jinhai Huang
author_facet Lilin Zhang
Lan Yao
Yanyu Guo
Xiaoyang Li
Li Ma
Ruiqi Sun
Xueqing Han
Jing Liu
Jinhai Huang
author_sort Lilin Zhang
collection DOAJ
description A recent study showed that patients with coronavirus disease 2019 (COVID-19) have gastrointestinal symptoms and intestinal flora dysbiosis. Yeast probiotics shape the gut microbiome and improve immune homeostasis. In this study, an oral candidate of yeast-derived spike protein receptor-binding domain (RBD) and fusion peptide displayed on the surface of the yeast cell wall was generated. The toxicity and immune efficacy of oral administration were further performed in Institute of Cancer Research (ICR) mice. No significant difference in body weights, viscera index, and other side effects were detected in the oral-treated group. The detectable RBD-specific immunoglobulin G (IgG) and immunoglobulin A (IgA) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and more complex microbiota were detected from oral administration mice compared with those of the control group. Interestingly, the recombinant yeast was identified in female fetal of the high-dose group. These results revealed that the displaying yeast could fulfill the agent-driven immunoregulation and gut microbiome reconstitution. The findings will shed light on new dimensions against SARS-CoV-2 infection with the synergistic oral agents as promising non-invasive immunization and restoring gut flora.
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spelling doaj.art-9d8e3bbe74874522a0409f77c4ba84052022-12-22T02:49:42ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2022-04-011310.3389/fmicb.2022.792532792532Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in MiceLilin Zhang0Lan Yao1Yanyu Guo2Xiaoyang Li3Li Ma4Ruiqi Sun5Xueqing Han6Jing Liu7Jinhai Huang8School of Life Sciences, Tianjin University, Tianjin, ChinaSchool of Life Sciences, Tianjin University, Tianjin, ChinaSchool of Life Sciences, Tianjin University, Tianjin, ChinaSchool of Life Sciences, Tianjin University, Tianjin, ChinaTianjin Institute of Pharmaceutical Research Co., Ltd., Tianjin, ChinaSchool of Life Sciences, Tianjin University, Tianjin, ChinaChinese Academy of Inspection and Quarantine, Beijing, ChinaTianjin Institute of Pharmaceutical Research Co., Ltd., Tianjin, ChinaSchool of Life Sciences, Tianjin University, Tianjin, ChinaA recent study showed that patients with coronavirus disease 2019 (COVID-19) have gastrointestinal symptoms and intestinal flora dysbiosis. Yeast probiotics shape the gut microbiome and improve immune homeostasis. In this study, an oral candidate of yeast-derived spike protein receptor-binding domain (RBD) and fusion peptide displayed on the surface of the yeast cell wall was generated. The toxicity and immune efficacy of oral administration were further performed in Institute of Cancer Research (ICR) mice. No significant difference in body weights, viscera index, and other side effects were detected in the oral-treated group. The detectable RBD-specific immunoglobulin G (IgG) and immunoglobulin A (IgA) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and more complex microbiota were detected from oral administration mice compared with those of the control group. Interestingly, the recombinant yeast was identified in female fetal of the high-dose group. These results revealed that the displaying yeast could fulfill the agent-driven immunoregulation and gut microbiome reconstitution. The findings will shed light on new dimensions against SARS-CoV-2 infection with the synergistic oral agents as promising non-invasive immunization and restoring gut flora.https://www.frontiersin.org/articles/10.3389/fmicb.2022.792532/fullSaccharomyces cerevisiaeSARS-CoV-2spike proteinoral administrationmicrobiome reconstruction
spellingShingle Lilin Zhang
Lan Yao
Yanyu Guo
Xiaoyang Li
Li Ma
Ruiqi Sun
Xueqing Han
Jing Liu
Jinhai Huang
Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in Mice
Frontiers in Microbiology
Saccharomyces cerevisiae
SARS-CoV-2
spike protein
oral administration
microbiome reconstruction
title Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in Mice
title_full Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in Mice
title_fullStr Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in Mice
title_full_unstemmed Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in Mice
title_short Oral SARS-CoV-2 Spike Protein Recombinant Yeast Candidate Prompts Specific Antibody and Gut Microbiota Reconstruction in Mice
title_sort oral sars cov 2 spike protein recombinant yeast candidate prompts specific antibody and gut microbiota reconstruction in mice
topic Saccharomyces cerevisiae
SARS-CoV-2
spike protein
oral administration
microbiome reconstruction
url https://www.frontiersin.org/articles/10.3389/fmicb.2022.792532/full
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