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Control of Salmonella dissemination in vivo by macrophage inflammatory protein (MIP)-3a/CCL20
Authors
A Izadpanah
A Zlotnik
+49 more
AC Kirby
AD Luster
AD Ogunniyi
BG Dorner
CA Power
D Yang
D Yang
D Yang
DM Hoover
DM Lindell
DN Cook
DR Greaves
E Schutyser
E Schutyser
F Annunziato
F Sierro
Ian Clark-Lewis
JH Dufour
JH Ruth
K Jinnouchi
KM Ansel
LM Ebert
LM Gale
M Baggiolini
M Cella
M Chabaud
MA Olszewski
MC Dieu
MC Dieu-Nosjean
N Godessart
Nicholas J Coates
Olivier L Fahy
P Scapini
PA Tessier
PA Tessier
R Krzysiek
R Varona
R Varona
RE Kohler
S Bao
S Fujiie
S Sugita
S Yamashiro
Scott L Townley
Shaun R McColl
SR Attridge
T Nishi
TD Starner
Y Tanaka
Publication date
1 January 2004
Publisher
'Springer Science and Business Media LLC'
Doi
Cite
Abstract
Copyright © 2007 United States and Canadian Academy of PathologyWhile chemokines are clearly important in the generation of protective immunity, the role of individual chemokines in the control of bacterial infection is still poorly understood. In this study, we investigated the role of macrophage inflammatory protein (MIP)-3alpha/CCL20, a chemokine that attracts activated T and B lymphocytes and immature dendritic cells, in host responses to bacterial infection. CCL20 production was induced in subcutaneous tissue in the BALB/c mouse in response to Salmonella enteritidis, Staphylococcus aureus and zymosan, with S. enteritidis being the most potent. S. enteritidis induced CCL20 production in the spleen following either oral administration or injection into the peritoneal cavity. In contrast, no increase was observed in the Peyer's patches. In this model, following intraperitoneal injection, dose-dependent colonization of the spleen and Peyer's patches by S. enteritidis, expression of IFNgamma and IL-4, and production of antibodies against the S. enteritidis surface antigen SefA were observed. Prior treatment with neutralizing antibodies against CCL20 enhanced bacterial dissemination to the spleen and Peyer's patches and strongly biased the IFNgamma/IL-4 ratio towards a type 2 profile in the spleen, while the humoral response was unaffected. In contrast, treatment with neutralizing anti-MIP-1alpha/CCL3 antibodies enhanced the bacterial burden in the Peyer's patches but not in the spleen, had no significant effect on the cytokine ratio, but significantly inhibited anti-SefA production. Together, these results demonstrate an important role for CCL20 in the control of bacterial infection and more specifically in the regulation of cell-mediated immunity against intracellular bacteria such as S. enteritidis.Olivier L Fahy, Scott L Townley, Nicholas J Coates, Ian Clark-Lewis and Shaun R McCol
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Adelaide Research & Scholarship
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