Induction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid fever
The mechanisms by which oral, live-attenuated vaccines protect against typhoid fever are poorly understood. Here, we analyze transcriptional responses after vaccination with Ty21a or vaccine candidate, M01ZH09. Alterations in response profiles were related to vaccine-induced immune responses and sub...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal article |
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Frontiers Media
2017
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| _version_ | 1797073519506358272 |
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| author | Blohmke, CJ Hill, J Darton, TC Carvalho-Burger, M Eustace, A Jones, C Schreiber, F Goodier, MR Dougan, G Nakaya, HI Pollard, AJ |
| author_facet | Blohmke, CJ Hill, J Darton, TC Carvalho-Burger, M Eustace, A Jones, C Schreiber, F Goodier, MR Dougan, G Nakaya, HI Pollard, AJ |
| author_sort | Blohmke, CJ |
| collection | OXFORD |
| description | The mechanisms by which oral, live-attenuated vaccines protect against typhoid fever are poorly understood. Here, we analyze transcriptional responses after vaccination with Ty21a or vaccine candidate, M01ZH09. Alterations in response profiles were related to vaccine-induced immune responses and subsequent outcome after wild-type Salmonella Typhi challenge. Despite broad genetic similarity, we detected differences in transcriptional responses to each vaccine. Seven days after M01ZH09 vaccination, marked cell cycle activation was identified and associated with humoral immunogenicity. By contrast, vaccination with Ty21a was associated with NK cell activity and validated in peripheral blood mononuclear cell stimulation assays confirming superior induction of an NK cell response. Moreover, transcriptional signatures of amino acid metabolism in Ty21a recipients were associated with protection against infection, including increased incubation time and decreased severity. Our data provide detailed insight into molecular immune responses to typhoid vaccines, which could aid the rational design of improved oral, live-attenuated vaccines against enteric pathogens. |
| first_indexed | 2024-03-06T23:23:22Z |
| format | Journal article |
| id | oxford-uuid:6989a9a7-61fa-41b9-a097-0af9f1a3b28f |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:23:22Z |
| publishDate | 2017 |
| publisher | Frontiers Media |
| record_format | dspace |
| spelling | oxford-uuid:6989a9a7-61fa-41b9-a097-0af9f1a3b28f2022-03-26T18:51:40ZInduction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid feverJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6989a9a7-61fa-41b9-a097-0af9f1a3b28fSymplectic Elements at OxfordFrontiers Media2017Blohmke, CJHill, JDarton, TCCarvalho-Burger, MEustace, AJones, CSchreiber, FGoodier, MRDougan, GNakaya, HIPollard, AJThe mechanisms by which oral, live-attenuated vaccines protect against typhoid fever are poorly understood. Here, we analyze transcriptional responses after vaccination with Ty21a or vaccine candidate, M01ZH09. Alterations in response profiles were related to vaccine-induced immune responses and subsequent outcome after wild-type Salmonella Typhi challenge. Despite broad genetic similarity, we detected differences in transcriptional responses to each vaccine. Seven days after M01ZH09 vaccination, marked cell cycle activation was identified and associated with humoral immunogenicity. By contrast, vaccination with Ty21a was associated with NK cell activity and validated in peripheral blood mononuclear cell stimulation assays confirming superior induction of an NK cell response. Moreover, transcriptional signatures of amino acid metabolism in Ty21a recipients were associated with protection against infection, including increased incubation time and decreased severity. Our data provide detailed insight into molecular immune responses to typhoid vaccines, which could aid the rational design of improved oral, live-attenuated vaccines against enteric pathogens. |
| spellingShingle | Blohmke, CJ Hill, J Darton, TC Carvalho-Burger, M Eustace, A Jones, C Schreiber, F Goodier, MR Dougan, G Nakaya, HI Pollard, AJ Induction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid fever |
| title | Induction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid fever |
| title_full | Induction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid fever |
| title_fullStr | Induction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid fever |
| title_full_unstemmed | Induction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid fever |
| title_short | Induction of cell cycle and NK cell responses by live-attenuated oral vaccines against typhoid fever |
| title_sort | induction of cell cycle and nk cell responses by live attenuated oral vaccines against typhoid fever |
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