Platelet-rich fibrin elicits an anti-inflammatory response in macrophages in vitro.
anti-inflammatory agents
arginase
blood platelets
cytokines
macrophages
platelet-rich fibrin
Journal
Journal of periodontology
ISSN: 1943-3670
Titre abrégé: J Periodontol
Pays: United States
ID NLM: 8000345
Informations de publication
Date de publication:
02 2020
02 2020
Historique:
received:
06
04
2019
revised:
31
05
2019
accepted:
17
06
2019
pubmed:
4
8
2019
medline:
3
7
2020
entrez:
4
8
2019
Statut:
ppublish
Résumé
Platelet-rich fibrin (PRF) serves as a reservoir of bioactive molecules to support wound healing and bone regeneration. The beneficial action of PRF might involve macrophage polarization from proinflammatory M1 toward pro-resolving M2 phenotypes. This study aims to evaluate the effect of PRF on macrophage polarization. Murine primary macrophages and RAW 264.7 cells were exposed to saliva and lipopolysaccharides (LPS) with and without PRF lysates obtained by repeated freeze-thawing or the secretome of PRF membranes, termed PRF conditioned medium. The expression of the M1 marker genes interleukin 1β (IL1β) and interleukin 6 (IL6) along with the M2 markers arginase-1 and chitinase-like 3 (Chil3 or YM1) were evaluated by real time polymerase chain reaction. Immunoassay and immunofluorescence staining were performed for IL6 and p65 translocation, a subunit nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB), respectively. We report here that PRF lysates and PRF conditioned medium, the latter containing the secretome, greatly decreased the proinflammatory response of primary macrophages and RAW 264.7 cells as indicated by the expression of IL1β and IL6. The anti-inflammatory activity of PRF lysates was further confirmed by IL6 immunoassay. Moreover, PRF lysates suppressed the translocation of p65 from the cytoplasm into the nucleus after incubation with saliva. In support of M2 polarization, PRF lysates and PRF conditioned medium enhanced the expression of arginase-1 and YM1 in primary macrophages. Our results indicate that PRF holds an anti-inflammatory activity and shifts the macrophage polarization from an M1 toward an M2 phenotype.
Sections du résumé
BACKGROUND
Platelet-rich fibrin (PRF) serves as a reservoir of bioactive molecules to support wound healing and bone regeneration. The beneficial action of PRF might involve macrophage polarization from proinflammatory M1 toward pro-resolving M2 phenotypes. This study aims to evaluate the effect of PRF on macrophage polarization.
METHODS
Murine primary macrophages and RAW 264.7 cells were exposed to saliva and lipopolysaccharides (LPS) with and without PRF lysates obtained by repeated freeze-thawing or the secretome of PRF membranes, termed PRF conditioned medium. The expression of the M1 marker genes interleukin 1β (IL1β) and interleukin 6 (IL6) along with the M2 markers arginase-1 and chitinase-like 3 (Chil3 or YM1) were evaluated by real time polymerase chain reaction. Immunoassay and immunofluorescence staining were performed for IL6 and p65 translocation, a subunit nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB), respectively.
RESULTS
We report here that PRF lysates and PRF conditioned medium, the latter containing the secretome, greatly decreased the proinflammatory response of primary macrophages and RAW 264.7 cells as indicated by the expression of IL1β and IL6. The anti-inflammatory activity of PRF lysates was further confirmed by IL6 immunoassay. Moreover, PRF lysates suppressed the translocation of p65 from the cytoplasm into the nucleus after incubation with saliva. In support of M2 polarization, PRF lysates and PRF conditioned medium enhanced the expression of arginase-1 and YM1 in primary macrophages.
CONCLUSION
Our results indicate that PRF holds an anti-inflammatory activity and shifts the macrophage polarization from an M1 toward an M2 phenotype.
Identifiants
pubmed: 31376159
doi: 10.1002/JPER.19-0216
pmc: PMC7065136
doi:
Substances chimiques
Anti-Inflammatory Agents
0
Lipopolysaccharides
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
244-252Subventions
Organisme : Austrian Science Fund FWF
ID : I 4072
Pays : Austria
Informations de copyright
© 2019 The Authors. Journal of Periodontology published by Wiley Periodicals, Inc. on behalf of American Academy of Periodontology.
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