γδ T Cells Mediate Protection against Neutrophil-associated Lung Inflammation in Pulmonary Melioidosis
Issued Date
2024-11-01
Resource Type
ISSN
10441549
eISSN
15354989
Scopus ID
2-s2.0-85208405979
Pubmed ID
38935886
Journal Title
American Journal of Respiratory Cell and Molecular Biology
Volume
71
Issue
5
Start Page
546
End Page
558
Rights Holder(s)
SCOPUS
Bibliographic Citation
American Journal of Respiratory Cell and Molecular Biology Vol.71 No.5 (2024) , 546-558
Suggested Citation
Wright S.W., Sengyee S., Ekchariyawat P., Phunpang R., Dulsuk A., Rerolle G., Bashmail A., Chantratita N., Gharib S.A., West T.E. γδ T Cells Mediate Protection against Neutrophil-associated Lung Inflammation in Pulmonary Melioidosis. American Journal of Respiratory Cell and Molecular Biology Vol.71 No.5 (2024) , 546-558. 558. doi:10.1165/rcmb.2024-0072OC Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/102032
Title
γδ T Cells Mediate Protection against Neutrophil-associated Lung Inflammation in Pulmonary Melioidosis
Corresponding Author(s)
Other Contributor(s)
Abstract
Pulmonary melioidosis is a severe tropical infection caused by Burkholderia pseudomallei and is associated with high mortality, despite early antibiotic treatment. gd T cells have been increasingly implicated as drivers of the host neutrophil response during bacterial pneumonia, but their role in pulmonary melioidosis is unknown. Here, we report that in patients with melioidosis, a lower peripheral blood gd T-cell concentration is associated with higher mortality, even when adjusting for severity of illness. gd T cells were also enriched in the lung and protected against mortality in a mouse model of pulmonary melioidosis. gd T-cell deficiency in infected mice induced an early recruitment of neutrophils to the lung, independent of bacterial burden. Subsequently, gd T-cell deficiency resulted in increased neutrophil-associated inflammation in the lung as well as impaired bacterial clearance. In addition, gd T cells influenced neutrophil function and subset diversity in the lung after infection. Our results indicate that gd T cells serve a novel protective role in the lung during severe bacterial pneumonia by regulating excessive neutrophil-associated inflammation.