Immediate Neutrophil-Variable-T Cell Receptor Host Response in Bacterial Meningitis.
T cell receptors
V(D)J receptors
bacterial meningitis
neutrophil granulocytes
phagocytosis
Journal
Frontiers in neurology
ISSN: 1664-2295
Titre abrégé: Front Neurol
Pays: Switzerland
ID NLM: 101546899
Informations de publication
Date de publication:
2019
2019
Historique:
received:
11
09
2018
accepted:
11
03
2019
entrez:
20
4
2019
pubmed:
20
4
2019
medline:
20
4
2019
Statut:
epublish
Résumé
Bacterial meningitis is a life-threatening disease that evokes an intense neutrophil-dominated host response to microbes invading the subarachnoid space. Recent evidence indicates the existence of combinatorial V(D)J immune receptors in neutrophils that are based on the T cell receptor (TCR). Here, we investigated expression of the novel neutrophil TCRαβ-based V(D)J receptors in cerebrospinal fluid (CSF) from human patients with acute-phase bacterial meningitis using immunocytochemical, genetic immunoprofiling, cell biological, and mass spectrometric techniques. We find that the human neutrophil combinatorial V(D)J receptors are rapidly induced in CSF neutrophils during the first hours of bacterial meningitis. Immune receptor repertoire diversity is consistently increased in CSF neutrophils relative to circulating neutrophils and phagocytosis of baits directed to the variable immunoreceptor is enhanced in CSF neutrophils during acute-phase meningitis. Our results reveal that a flexible immune response involving neutrophil V(D)J receptors which enhance phagocytosis is immediately initiated at the site of acute bacterial infection.
Identifiants
pubmed: 31001192
doi: 10.3389/fneur.2019.00307
pmc: PMC6454057
doi:
Types de publication
Journal Article
Langues
eng
Pagination
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