Journal
EMERGING MICROBES & INFECTIONS
Volume 8, Issue 1, Pages 169-185Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/22221751.2018.1564630
Keywords
Bordetella pertussis; pertussis vaccine; tissue-resident memory T cell; STh1 and Th17 cells
Categories
Funding
- Science Foundation Ireland [16/IA/4468, 12/RI/2340-7]
- PERISCOPE project from the Innovative Medicines Initiative 2 Joint undertaking [115910]
- European Union
- European Federation of Pharmaceutical Industries and Associations
- Bill and Melinda Gates Foundation
- Science Foundation Ireland (SFI) [12/RI/2340 (7)] Funding Source: Science Foundation Ireland (SFI)
Ask authors/readers for more resources
Protective immunity wanes rapidly after immunization of children with acellular pertussis (aP) vaccines and these vaccines do not prevent nasal colonization or transmission of Bordetella pertussis in baboons. In this study, we examined the role of tissue-resident memory T (T-RM) cells in persistent protective immunity induced by infection or immunization with aP and whole-cell pertussis (wP) vaccines in mice. Immunization of mice with a wP vaccine protected against lung and nasal colonization, whereas an aP vaccine failed to protect in the nose. IL-17 and IFN-gamma-secreting CD69(+) CD4(+) T-RM cells were expanded in the lung and nasal tissue after B. pertussis challenge of mice immunized with wP, but not aP vaccines. However, previous infection induced the most persistent protection against nasal colonization and this correlated with potent induction of nasal tissue T-RM cells, especially IL-17- secreting T-RM cells. Blocking T cell migration to respiratory tissue during immunization with a wP vaccine impaired bacterial clearance, whereas transfer of T-RM cells from convalescent or wP-immunized mice conferred protection to naive mice. Our findings reveal that previous infection or wP vaccination are significantly more effective than aP vaccination in conferring persistent protective immunity against B. pertussis and that this is mediated by respiratory T-RM cells.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available