PMID- 25791329 OWN - NLM STAT- MEDLINE DCOM- 20160211 LR - 20221207 IS - 1879-1506 (Electronic) IS - 0003-9969 (Linking) VI - 60 IP - 6 DP - 2015 Jun TI - Green tea polyphenol epigallocatechin-3-gallate and cranberry proanthocyanidins act in synergy with cathelicidin (LL-37) to reduce the LPS-induced inflammatory response in a three-dimensional co-culture model of gingival epithelial cells and fibroblasts. PG - 845-53 LID - S0003-9969(15)00049-7 [pii] LID - 10.1016/j.archoralbio.2015.02.021 [doi] AB - OBJECTIVES: The human antimicrobial peptide cathelicidin (LL-37) possesses anti-inflammatory properties that may contribute to attenuating the inflammatory process associated with chronic periodontitis. Plant polyphenols, including those from cranberry and green tea, have been reported to reduce inflammatory cytokine secretion by host cells. In the present study, we hypothesized that A-type cranberry proanthocyanidins (AC-PACs) and green tea epigallocatechin-3-gallate (EGCG) act in synergy with LL-37 to reduce the secretion of inflammatory mediators by oral mucosal cells. METHODS: A three-dimensional (3D) co-culture model of gingival epithelial cells and fibroblasts treated with non-cytotoxic concentrations of AC-PACs (25 and 50 mug/ml), EGCG (1 and 5 mug/ml), and LL-37 (0.1 and 0.2 muM) individually and in combination (AC-PACs+LL-37 and EGCG+LL-37) were stimulated with Aggregatibacter actinomycetemcomitans lipopolysaccharide (LPS). Multiplex ELISA assays were used to quantify the secretion of 54 host factors, including chemokines, cytokines, growth factors, matrix metalloproteinases (MMPs), and tissue inhibitors of metalloproteinases (TIMPs). RESULTS: LL-37, AC-PACs, and EGCG, individually or in combination, had no effect on the regulation of MMP and TIMP secretion but inhibited the secretion of several cytokines. AC-PACs and LL-37 acted in synergy to reduce the secretion of CXC-chemokine ligand 1 (GRO-alpha), granulocyte colony-stimulating factor (G-CSF), and interleukin-6 (IL-6), and had an additive effect on reducing the secretion of interleukin-8 (IL-8), interferon-gamma inducible protein 10 (IP-10), and monocyte chemoattractant protein-1 (MCP-1) in response to LPS stimulation. EGCG and LL-37 acted in synergy to reduce the secretion of GRO-alpha, G-CSF, IL-6, IL-8, and IP-10, and had an additive effect on MCP-1 secretion. CONCLUSION: The combination of LL-37 and natural polyphenols from cranberry and green tea acted in synergy to reduce the secretion of several cytokines by an LPS-stimulated 3D co-culture model of oral mucosal cells. Such combinations show promising results as potential adjunctive therapies for treating inflammatory periodontitis. CI - Copyright (c) 2015 Elsevier Ltd. All rights reserved. FAU - Lombardo Bedran, Telma Blanca AU - Lombardo Bedran TB AD - Department of Oral Diagnosis and Surgery, Araraquara Dental School, State University of Sao Paulo, Sao Paulo, Brazil. FAU - Palomari Spolidorio, Denise AU - Palomari Spolidorio D AD - Department of Physiology and Pathology, Araraquara Dental School, State University of Sao Paulo, Sao Paulo, Brazil. FAU - Grenier, Daniel AU - Grenier D AD - Oral Ecology Research Group, Faculty of Dentistry, Universite Laval, Quebec City, QC, Canada. Electronic address: Daniel.Grenier@greb.ulaval.ca. LA - eng GR - Canadian Institutes of Health Research/Canada PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150227 PL - England TA - Arch Oral Biol JT - Archives of oral biology JID - 0116711 RN - 0 (Antimicrobial Cationic Peptides) RN - 0 (Inflammation Mediators) RN - 0 (Lipopolysaccharides) RN - 0 (Plant Extracts) RN - 0 (Proanthocyanidins) RN - 0 (Tea) RN - 8R1V1STN48 (Catechin) RN - BQM438CTEL (epigallocatechin gallate) RN - 0 (Cathelicidins) SB - IM MH - Aggregatibacter actinomycetemcomitans MH - Antimicrobial Cationic Peptides/*pharmacology MH - Catechin/*analogs & derivatives/pharmacology MH - *Coculture Techniques MH - Drug Synergism MH - Enzyme-Linked Immunosorbent Assay MH - Epithelial Cells/*drug effects/metabolism MH - Fibroblasts/*drug effects/metabolism MH - Gingiva/*cytology/metabolism MH - Humans MH - Inflammation Mediators/*metabolism MH - Lipopolysaccharides MH - Plant Extracts/*pharmacology MH - Proanthocyanidins/*pharmacology MH - *Tea MH - *Vaccinium macrocarpon MH - Cathelicidins OTO - NOTNLM OT - Cathelicidin OT - Cranberry OT - Epithelial cell OT - Fibroblast OT - Green tea OT - Periodontal disease EDAT- 2015/03/21 06:00 MHDA- 2016/02/13 06:00 CRDT- 2015/03/21 06:00 PHST- 2014/11/14 00:00 [received] PHST- 2015/01/22 00:00 [revised] PHST- 2015/02/21 00:00 [accepted] PHST- 2015/03/21 06:00 [entrez] PHST- 2015/03/21 06:00 [pubmed] PHST- 2016/02/13 06:00 [medline] AID - S0003-9969(15)00049-7 [pii] AID - 10.1016/j.archoralbio.2015.02.021 [doi] PST - ppublish SO - Arch Oral Biol. 2015 Jun;60(6):845-53. doi: 10.1016/j.archoralbio.2015.02.021. Epub 2015 Feb 27.