Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responses

Abstract Syphilis has resurged in many countries, which has called attention to vaccine development. Based on the immunization-based rabbit model of infection with the Nichols strain, this study explored the protective immune response of a controversial syphilis vaccine candidate, TprK, and found th...

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Main Authors: Dan Liu, Rui Chen, Yong-Jing Wang, Wei Li, Li-Li Liu, Li-Rong Lin, Tian-Ci Yang, Man-Li Tong
Format: Article
Language:English
Published: Nature Portfolio 2023-09-01
Series:npj Vaccines
Online Access:https://doi.org/10.1038/s41541-023-00748-1
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author Dan Liu
Rui Chen
Yong-Jing Wang
Wei Li
Li-Li Liu
Li-Rong Lin
Tian-Ci Yang
Man-Li Tong
author_facet Dan Liu
Rui Chen
Yong-Jing Wang
Wei Li
Li-Li Liu
Li-Rong Lin
Tian-Ci Yang
Man-Li Tong
author_sort Dan Liu
collection DOAJ
description Abstract Syphilis has resurged in many countries, which has called attention to vaccine development. Based on the immunization-based rabbit model of infection with the Nichols strain, this study explored the protective immune response of a controversial syphilis vaccine candidate, TprK, and found that immunization with full-length rTprK was effective in attenuating lesion development and accelerating lesion resolution, which could reduce the probability of the pathogen spreading to distant tissue sites to prevent the progression of the disease to some extent. Furthermore, the results revealed that immunization with rTprK not only rapidly induced a strong Th1-like cellular response but also elicited a humoral immune response to produce opsonic antibodies to enhance macrophage-mediated opsonophagocytosis. Although complete protection against infection was not achieved, the study provided a comprehensive and in-depth exploration of the immunogenicity of TprK and highlighted the importance of TprK as a promising syphilis vaccine component.
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spelling doaj.art-4d7117f3421d4be3bf7ea3c0a3b2659a2023-11-26T12:16:27ZengNature Portfolionpj Vaccines2059-01052023-09-018111010.1038/s41541-023-00748-1Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responsesDan Liu0Rui Chen1Yong-Jing Wang2Wei Li3Li-Li Liu4Li-Rong Lin5Tian-Ci Yang6Man-Li Tong7Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen UniversityInstitute of Infectious Disease, School of Medicine, Xiamen UniversityInstitute of Infectious Disease, School of Medicine, Xiamen UniversityInstitute of Infectious Disease, School of Medicine, Xiamen UniversityCenter of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen UniversityCenter of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen UniversityCenter of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen UniversityCenter of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen UniversityAbstract Syphilis has resurged in many countries, which has called attention to vaccine development. Based on the immunization-based rabbit model of infection with the Nichols strain, this study explored the protective immune response of a controversial syphilis vaccine candidate, TprK, and found that immunization with full-length rTprK was effective in attenuating lesion development and accelerating lesion resolution, which could reduce the probability of the pathogen spreading to distant tissue sites to prevent the progression of the disease to some extent. Furthermore, the results revealed that immunization with rTprK not only rapidly induced a strong Th1-like cellular response but also elicited a humoral immune response to produce opsonic antibodies to enhance macrophage-mediated opsonophagocytosis. Although complete protection against infection was not achieved, the study provided a comprehensive and in-depth exploration of the immunogenicity of TprK and highlighted the importance of TprK as a promising syphilis vaccine component.https://doi.org/10.1038/s41541-023-00748-1
spellingShingle Dan Liu
Rui Chen
Yong-Jing Wang
Wei Li
Li-Li Liu
Li-Rong Lin
Tian-Ci Yang
Man-Li Tong
Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responses
npj Vaccines
title Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responses
title_full Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responses
title_fullStr Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responses
title_full_unstemmed Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responses
title_short Insights into the protective immune response by immunization with full-length recombinant TprK protein: cellular and humoral responses
title_sort insights into the protective immune response by immunization with full length recombinant tprk protein cellular and humoral responses
url https://doi.org/10.1038/s41541-023-00748-1
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