An atypical role for the myeloid receptor Mincle in central nervous system injury
File(s)
Author(s)
Type
Journal Article
Abstract
The C-type lectin Mincle is implicated in innate immune responses to sterile inflammation, but its contribution to associated pathologies is not well understood. Herein, we show that Mincle exacerbates neuronal loss following ischemic but not traumatic spinal cord injury. Loss of Mincle was beneficial in a model of transient middle cerebral artery occlusion but did not alter outcomes following heart or gut ischemia. High functional scores in Mincle KO animals using the focal cerebral ischemia model were accompanied by reduced lesion size, fewer infiltrating leukocytes and less neutrophil-derived cytokine production than isogenic controls. Bone marrow chimera experiments revealed that the presence of Mincle in the central nervous system, rather than recruited immune cells, was the critical regulator of a poor outcome following transient middle cerebral artery occlusion. There was no evidence for a direct role for Mincle in microglia or neural activation, but expression in a subset of macrophages resident in the perivascular niche provided new clues on Mincle's role in ischemic stroke.
Date Issued
2017-06-01
Date Acceptance
2016-06-09
Citation
Journal of Cerebral Blood Flow and Metabolism, 2017, 37 (6), pp.2098-2111
ISSN
0271-678X
Publisher
SAGE Publications
Start Page
2098
End Page
2111
Journal / Book Title
Journal of Cerebral Blood Flow and Metabolism
Volume
37
Issue
6
Copyright Statement
© Author(s) 2016. This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/27492949
PII: 0271678X16661201
Subjects
C-type lectin
ischemia
microglia
middle cerebral artery occlusion
sterile inflammation
Animals
Disease Models, Animal
Flow Cytometry
Hypoxia-Ischemia, Brain
In Situ Nick-End Labeling
Intestines
Lectins, C-Type
Male
Membrane Proteins
Mice, Inbred C57BL
Mice, Knockout
Motor Activity
Myocardial Infarction
Reperfusion Injury
Spinal Cord Injuries
Publication Status
Published
Coverage Spatial
United States
Date Publish Online
2016-08-19