NDLI: FNDC4 acts as an anti-inflammatory factor on macrophages and improves colitis in mice

Content Provider	PubMed Central
Author	Bosma, Madeleen Gerling, Marco Pasto, Jenny Anastasia, Georgiadi Graham, Evan Olga, Shilkova Iwata, Yasunori Almer, Sven Söderman, Jan Rune, Toftgård Wermeling, Fredrik Boström, Elisabeth Almer Boström, Pontus Almer
Copyright Year	2016
Abstract	FNDC4 is a secreted factor sharing high homology with the exercise-associated myokine irisin (FNDC5). Here we report that Fndc4 is robustly upregulated in several mouse models of inflammation as well as in human inflammatory conditions. Specifically, FNDC4 levels are increased locally at inflamed sites of the intestine of inflammatory bowel disease patients. Interestingly, administration of recombinant FNDC4 in the mouse model of induced colitis markedly reduces disease severity compared with mice injected with a control protein. Conversely, mice lacking Fndc4 develop more severe colitis. Analysis of binding of FNDC4 to different immune cell types reveals strong and specific binding to macrophages and monocytes. FNDC4 treatment of bone marrow-derived macrophages in vitro results in reduced phagocytosis, increased cell survival and reduced proinflammatory chemokine expression. Hence, treatment with FNDC4 results in a state of dampened macrophage activity, while enhancing their survival. Thus, we have characterized FNDC4 as a factor with direct therapeutic potential in inflammatory bowel disease and possibly other inflammatory diseases.
Related Links	http://dx.doi.org/10.1038/ncomms11314
Starting Page	11314
File Format	PDF
ISSN	20411723
e-ISSN	20411723
Journal	Nature Communications
Volume Number	7
Language	English
Publisher	Nature Publishing Group
Publisher Date	2016-04-01
Access Restriction	Open
Rights Holder	Nature Publishing Group
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Physics and Astronomy(all) Chemistry(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Chemistry Physics and Astronomy Biochemistry, Genetics and Molecular Biology

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