The c-MET receptor tyrosine kinase contributes to neutrophil-driven pathology in cutaneous leishmaniasis.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_F09B4A0D524F
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The c-MET receptor tyrosine kinase contributes to neutrophil-driven pathology in cutaneous leishmaniasis.
Journal
PLoS pathogens
Author(s)
Passelli K., Prat-Luri B., Merlot M., Goris M., Mazzone M., Tacchini-Cottier F.
ISSN
1553-7374 (Electronic)
ISSN-L
1553-7366
Publication state
Published
Issued date
01/2022
Peer-reviewed
Oui
Volume
18
Number
1
Pages
e1010247
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Neutrophils are the first line of defence against invading pathogens. Although neutrophils are well-known professional killers, some pathogens including Leishmania (L.) parasites survive in neutrophils, using these cells to establish infection. Manipulation of neutrophil recruitment to the infection site is therefore of interest in this cutaneous disease. The c-MET tyrosine kinase receptor was shown to promote neutrophil migration to inflamed sites. Here, we investigated the importance of c-MET expression on neutrophils in their recruitment to the infection site and the role of c-Met expression in the pathology of leishmaniasis. Following infection with L. mexicana, mice with conditional deletion of c-MET in neutrophils controlled significantly better their lesion development and parasite burden compared to similarly infected wild type mice. Our data reveal a specific role for c-MET activation in Leishmania-induced neutrophil infiltration, a process correlating with their negative role in the pathology of the diseases. We further show that c-MET phosphorylation is observed in established cutaneous lesions. Exposure to L. mexicana upregulated c-Met expression predominantly in infected neutrophils and c-Met expression influenced ROS release by neutrophils. In addition, pharmacological inhibition of c-MET, administrated once the lesion is established, induced a significant decrease in lesion size associated with diminished infiltration of neutrophils. Both genetic ablation of c-MET in neutrophils and systemic inhibition of c-MET locally resulted in higher levels of CD4+T cells producing IFNγ, suggesting a crosstalk between neutrophils and these cells. Collectively, our data show that c-MET activation in neutrophils contributes to their recruitment following infection, and that L. mexicana induction of c-MET on neutrophils impacts the local pathology associated with this disease. Our results suggest a potential use for this inhibitor in the control of the cutaneous lesion during this parasitic infection.
Pubmed
Web of science
Open Access
Yes
Create date
24/01/2022 20:29
Last modification date
23/11/2022 8:16
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