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DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice

BACKGROUND: Toxoplasma gondii is an obligate intracellular parasite that causes a pathological status known as toxoplasmosis, which has a huge impact on human and animal health. Currently, the main control strategy depends on the usage of drugs that target the acute stage of the infection, however,...

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Autores principales: Hassan, Ibrahim A, Wang, Shuai, Xu, LiXin, Yan, RuoFeng, Song, XiaoKai, Li, Xiangrui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4164750/
https://www.ncbi.nlm.nih.gov/pubmed/25201636
http://dx.doi.org/10.1186/1756-3305-7-431
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author Hassan, Ibrahim A
Wang, Shuai
Xu, LiXin
Yan, RuoFeng
Song, XiaoKai
Li, Xiangrui
author_facet Hassan, Ibrahim A
Wang, Shuai
Xu, LiXin
Yan, RuoFeng
Song, XiaoKai
Li, Xiangrui
author_sort Hassan, Ibrahim A
collection PubMed
description BACKGROUND: Toxoplasma gondii is an obligate intracellular parasite that causes a pathological status known as toxoplasmosis, which has a huge impact on human and animal health. Currently, the main control strategy depends on the usage of drugs that target the acute stage of the infection, however, drawbacks were encountered while applying this method; therefore, development of an alternative effective method would be important progress. Deoxyribose Phosphate Aldolase (TgDPA) plays an important role supporting cell invasion and providing energy for the parasite. METHODS: TgDPA was expressed in Escherichia coli and the purified recombinant protein was used to immunize rats. The antibodies obtained were used to verify in vitro expression of TgDPA. The vector pVAX1 was utilized to formulate a DNA vaccine designated as pTgDPA, which was used to evaluate the immunological changes and the level of protection against challenge with the virulent RH strain of T. gondii. RESULTS: DNA vaccine, TgDPA revealed that it can induce a strong humoral as well as cellular mediated response in mice. These responses were a contribution of T(H)1, T(H)2 and T(H)17 type of responses. Following challenge, mice immunized with TgDPA showed longer survival rates than did those in control groups. CONCLUSIONS: Further investigation regarding TgDPA is required to shed more light on its immunogenicity and its possible selection as a vaccine candidate.
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spelling pubmed-41647502014-09-17 DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice Hassan, Ibrahim A Wang, Shuai Xu, LiXin Yan, RuoFeng Song, XiaoKai Li, Xiangrui Parasit Vectors Research BACKGROUND: Toxoplasma gondii is an obligate intracellular parasite that causes a pathological status known as toxoplasmosis, which has a huge impact on human and animal health. Currently, the main control strategy depends on the usage of drugs that target the acute stage of the infection, however, drawbacks were encountered while applying this method; therefore, development of an alternative effective method would be important progress. Deoxyribose Phosphate Aldolase (TgDPA) plays an important role supporting cell invasion and providing energy for the parasite. METHODS: TgDPA was expressed in Escherichia coli and the purified recombinant protein was used to immunize rats. The antibodies obtained were used to verify in vitro expression of TgDPA. The vector pVAX1 was utilized to formulate a DNA vaccine designated as pTgDPA, which was used to evaluate the immunological changes and the level of protection against challenge with the virulent RH strain of T. gondii. RESULTS: DNA vaccine, TgDPA revealed that it can induce a strong humoral as well as cellular mediated response in mice. These responses were a contribution of T(H)1, T(H)2 and T(H)17 type of responses. Following challenge, mice immunized with TgDPA showed longer survival rates than did those in control groups. CONCLUSIONS: Further investigation regarding TgDPA is required to shed more light on its immunogenicity and its possible selection as a vaccine candidate. BioMed Central 2014-09-08 /pmc/articles/PMC4164750/ /pubmed/25201636 http://dx.doi.org/10.1186/1756-3305-7-431 Text en © Hassan et al.; licensee BioMed Central Ltd. 2014 This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Hassan, Ibrahim A
Wang, Shuai
Xu, LiXin
Yan, RuoFeng
Song, XiaoKai
Li, Xiangrui
DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice
title DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice
title_full DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice
title_fullStr DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice
title_full_unstemmed DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice
title_short DNA vaccination with a gene encoding Toxoplasma gondii Deoxyribose Phosphate Aldolase (TgDPA) induces partial protective immunity against lethal challenge in mice
title_sort dna vaccination with a gene encoding toxoplasma gondii deoxyribose phosphate aldolase (tgdpa) induces partial protective immunity against lethal challenge in mice
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4164750/
https://www.ncbi.nlm.nih.gov/pubmed/25201636
http://dx.doi.org/10.1186/1756-3305-7-431
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