title: VIP and CRF reduce ADAMTS expression and function in osteoarthritis synovial fibroblasts.
abstract: ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) family is known to play an important role in the pathogenesis of osteoarthritis (OA), working on aggrecan degradation or altering the integrity of extracellular matrix (ECM). Thus, the main purpose of our study was to define the role of vasoactive intestinal peptide (VIP) and corticotrophin-releasing factor (CRF), as immunoregulatory neuropeptides, on ADAMTS production in synovial fibroblasts (SF) from OA patients and healthy donors (HD). OA- and HD-SF were stimulated with pro-inflammatory mediators and treated with VIP or CRF. Both neuropeptides decreased ADAMTS-4, -5, -7 and -12 expressions, aggrecanase activity, glycosaminoglycans (GAG), and cartilage oligomeric matrix protein (COMP) degradation after stimulation with fibronectin fragments (Fn-fs) in OA-SF. After stimulation with interleukin-1β, VIP reduced ADAMTS-4 and -5, and both neuropeptides decreased ADAMTS-7 production and COMP degradation. Moreover, VIP and CRF reduced Runx2 and β-catenin activation in OA-SF. Our data suggest that the role of VIP and CRF on ADAMTS expression and cartilage degradation could be related to the OA pathology since scarce effects were produced in HD-SF. In addition, their effects might be greater when a degradation loop has been established, given that they were higher after stimulation with Fn-fs. Our results point to novel OA therapies based on the use of neuropeptides, since VIP and CRF are able to stop the first critical step, the loss of cartilage aggrecan and the ECM destabilization during joint degradation.
authors.affiliation: Department of Cell Biology, Faculty of Biology, Complutense University, Madrid, Spain.
authors.forename: Selene
authors.initials: S
authors.lastname: Pérez-García
authors.affiliation: Department of Cell Biology, Faculty of Biology, Complutense University, Madrid, Spain.
authors.forename: Mar
authors.initials: M
authors.lastname: Carrión
authors.affiliation: Department of Cell Biology, Faculty of Biology, Complutense University, Madrid, Spain.
authors.forename: Irene
authors.initials: I
authors.lastname: Gutiérrez-Cañas
authors.affiliation: Reumatology Service, Medical Research Institute, La Princesa University Hospital, Madrid, Spain.
authors.forename: Isidoro
authors.initials: I
authors.lastname: González-Álvaro
authors.affiliation: Department of Cell Biology, Faculty of Biology, Complutense University, Madrid, Spain.
authors.forename: Rosa P
authors.initials: RP
authors.lastname: Gomariz
authors.affiliation: Department of Cell Biology, Faculty of Biology, Complutense University, Madrid, Spain.
authors.forename: Yasmina
authors.initials: Y
authors.lastname: Juarranz
mesh_terms: D000071096:ADAMTS Proteins / Q000037:antagonists & inhibitors / Q000235:genetics* / Q000378:metabolism; D000368:Aged; D000369:Aged, 80 and over; D064236:Cartilage Oligomeric Matrix Protein / Q000235:genetics / Q000378:metabolism; D002358:Cartilage, Articular / Q000187:drug effects / Q000378:metabolism* / Q000473:pathology; D016022:Case-Control Studies; D050659:Core Binding Factor Alpha 1 Subunit / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism; D003346:Corticotropin-Releasing Hormone / Q000378:metabolism* / Q000494:pharmacology; D010450:Endopeptidases / Q000235:genetics / Q000378:metabolism; D005260:Female; D005347:Fibroblasts / Q000187:drug effects / Q000378:metabolism* / Q000473:pathology; D005353:Fibronectins / Q000494:pharmacology; D005786:Gene Expression Regulation; D006025:Glycosaminoglycans / Q000378:metabolism; D006801:Humans; D053583:Interleukin-1beta / Q000494:pharmacology; D017746:Joint Capsule / Q000378:metabolism / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D015398:Signal Transduction; D014660:Vasoactive Intestinal Peptide / Q000378:metabolism* / Q000494:pharmacology; D051176:beta Catenin / Q000037:antagonists & inhibitors / Q000235:genetics / Q000378:metabolism
chemical_list: D000071096:ADAMTS Proteins; D064236:Cartilage Oligomeric Matrix Protein; D050659:Core Binding Factor Alpha 1 Subunit; D003346:Corticotropin-Releasing Hormone; D010450:Endopeptidases; D005353:Fibronectins; D006025:Glycosaminoglycans; D053583:Interleukin-1beta; D014660:Vasoactive Intestinal Peptide; D051176:beta Catenin; C495270:CTNNB1 protein, human; C508585:IL1B protein, human; C493709:RUNX2 protein, human; C083641:aggrecanase; C577553:TSP5 protein, human
keywords: ADAMTS; COMP; CRF; VIP; glycosaminoglycans; osteoarthritis; synovial fibroblast
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