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2016 ; 196
(8
): 3227-31
Nephropedia Template TP
gab.com Text
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English Wikipedia
Cutting Edge: CLEC5A Mediates Macrophage Function and Chronic Obstructive
Pulmonary Disease Pathologies
#MMPMID26927798
Wortham BW
; Eppert BL
; Flury JL
; Garcia SM
; Donica WR
; Osterburg A
; Joyce-Shaikh B
; Cua DJ
; Borchers MT
J Immunol
2016[Apr]; 196
(8
): 3227-31
PMID26927798
show ga
Chronic obstructive pulmonary disease (COPD) is a devastating disease with no
effective therapies. We investigated the role of the C-type lectin receptor,
CLEC5A, in macrophage activation and pulmonary pathogenesis in a mouse model of
COPD. We demonstrate that CLEC5A is expressed on alveolar macrophages in mice
exposed long-term to cigarette smoke (CS), as well as in human smokers. We also
show that CLEC5A-mediated activation of macrophages enhanced cytokine elaboration
alone, as well as in combination with LPS or GM-CSF in CS-exposed mice.
Furthermore, usingClec5a-deficient mice, we demonstrate that CS-induced
macrophage responsiveness is mediated by CLEC5A, and CLEC5A is required for the
development of inflammation, proinflammatory cytokine expression, and airspace
enlargement. These findings suggest a novel mechanism that promotes airway
inflammation and pathologies in response to CS exposure and identifies CLEC5A as
a novel target for the therapeutic control of COPD pathogenesis.