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Tan DBA, Tedja C, Kuster L, Raymond WD, Harsanyi A, Chowalloor PV, Misso NL, Argawal S, Bhoola KD, Keen HI. The relationship between clinical phenotype and kallikrein-kinin bioregulation in different forms of arthritis. BMC Musculoskelet Disord 2023; 24:396. [PMID: 37202736 DOI: 10.1186/s12891-023-06388-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/31/2023] [Indexed: 05/20/2023] Open
Abstract
OBJECTIVE Patients with rheumatoid arthritis (RA) have shown increased levels of neutrophils generating kallikrein-kinin peptides in blood which are potent mediators of inflammation. This study investigated the association between the bioregulation of kinin-mediated inflammation with the clinical, quality of life, and imaging characteristics (e.g. ultrasonography) of different arthritides. METHODS Patients with osteoarthritis (OA, n = 29), gout (n = 10) and RA (n = 8) were recruited and screened for clinical symptoms, quality of life, and ultrasonographical assessment of arthritis. Blood neutrophils were assessed for the expression of bradykinin receptors (B1R and B2R), kininogens and kallikreins by immunocytochemistry with visualization by bright field microscopy. Levels of plasma biomarkers were measured by ELISA and cytometric bead array. RESULTS Quality of life (SF-36 domains and summary scores; including pain; and, HAQ) was similar across OA, gout and RA patients; with the exception of worse physical functioning scores between OA and gout patients. Synovial hypertrophy (on ultrasound) differed between groups (p = 0.001), and the dichotomised Power Doppler (PD) score of greater than or equal to 2 (PD-GE2) was marginally significant (p = 0.09). Plasma IL-8 were highest in patients with gout followed by RA and OA (both, P < 0.05). Patients with RA had higher plasma levels of sTNFR1, IL-1β, IL-12p70, TNF and IL-6, compared to OA and gout patients (all, P < 0.05). Patients with OA had higher expression of K1B and KLK1 on blood neutrophils followed by RA and gout patients (both, P < 0.05). Bodily pain correlated with B1R expression on blood neutrophils (r = 0.334, p = 0.05), and inversely with plasma levels of CRP (r = -0.55), sTNFR1 (r = -0.352) and IL-6 (r = -0.422), all P < 0.05. Expression of B1R on blood neutrophils also correlated with Knee PD (r = 0.403) and PD-GE2 (r = 0.480), both P < 0.05. CONCLUSIONS Pain levels and quality of life were similar between patients with OA, RA and gout with knee arthritis. Plasma inflammatory biomarkers and B1R expression on blood neutrophils correlated with pain. Targeting B1R to modulate the kinin-kallikrein system may pose as a new therapeutic target in the treatment of arthritis.
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Affiliation(s)
- Dino B A Tan
- Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia
- Centre for Respiratory Health, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
| | - Chantalia Tedja
- Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia
- Centre for Respiratory Health, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
| | - Lukas Kuster
- Centre for Respiratory Health, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
| | - Warren D Raymond
- School of Medicine and Health Sciences, Edith Cowan University, Perth, WA, Australia
- School of Medicine, University of Western Australia, Nedlands, WA, Australia
| | - Andreea Harsanyi
- School of Medicine, University of Western Australia, Nedlands, WA, Australia
- Goatcher Rheumatology Research Unit, Royal Perth Hospital, Perth, WA, Australia
| | - Priya V Chowalloor
- School of Medicine, University of Western Australia, Nedlands, WA, Australia
- Goatcher Rheumatology Research Unit, Royal Perth Hospital, Perth, WA, Australia
| | - Neil L Misso
- Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia
- Centre for Respiratory Health, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
| | - Shashi Argawal
- Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia
- Centre for Respiratory Health, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
| | - Kanti D Bhoola
- Stem Cell Unit, Institute for Respiratory Health, Nedlands, WA, Australia
- Centre for Respiratory Health, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology and Pathology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - Helen I Keen
- Centre for Respiratory Health, School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia.
- School of Medicine, University of Western Australia, Nedlands, WA, Australia.
- Goatcher Rheumatology Research Unit, Royal Perth Hospital, Perth, WA, Australia.
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Soley BDS, Silva LM, Mendes DAGB, Báfica A, Pesquero JB, Bader M, Witherden DA, Havran WL, Calixto JB, Otuki MF, Cabrini DA. B 1 and B 2 kinin receptor blockade improves psoriasis-like disease. Br J Pharmacol 2020; 177:3535-3551. [PMID: 32335893 DOI: 10.1111/bph.15077] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 03/26/2020] [Accepted: 04/04/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND AND PURPOSE The entire kallikrein-kinin system is present in the skin, and it is thought to exert a relevant role in cutaneous diseases, including psoriasis. The present study was designed to evaluate the relevance of kinin receptors in the development and progression of a model of psoriasis in mice. EXPERIMENTAL APPROACH The effects of kinin B1 and B2 receptor knockout and of kinin receptor antagonists (SSR240612C or FR173657) were assessed in a model of psoriasis induced by imiquimod in C57BL/6 mice. Severity of psoriasis was assessed by histological and immunohistochemical assays of skin, along with objective scores based on the clinical psoriasis area and severity index. KEY RESULTS Both kinin receptors were up-regulated following 6 days of imiquimod treatment. Kinin B1 and B2 receptor deficiency and the use of selective antagonists show morphological and histological improvement of the psoriasis hallmarks. This protective effect was associated with a decrease in undifferentiated and proliferating keratinocytes, decreased cellularity (neutrophils, macrophages, and CD4+ T lymphocytes), reduced γδ T cells, and lower accumulation of IL-17. The lack of B2 receptors resulted in reduced CD8+ T cells in the psoriatic skin. Relevantly, blocking kinin receptors reflected the improvement of psoriasis disease in the well-being behaviour of the mice. CONCLUSIONS AND IMPLICATIONS Kinins exerted critical roles in imiquimod-induced psoriasis. Both B1 and B2 kinin receptors exacerbated the disease, influencing keratinocyte proliferation and immunopathology. Antagonists of one or even both kinin receptors might constitute a new strategy for the clinical treatment of psoriasis.
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Affiliation(s)
| | | | | | - André Báfica
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - João Bosco Pesquero
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil
| | - Michael Bader
- Max Delbrück Center for Molecular Medicine (MDC), Berlin, Germany.,Institute for Biology, University of Lübeck, Germany.,Charité University Medicine, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Germany
| | - Deborah A Witherden
- Immunology and Microbiology, Scripps Research Institute, La Jolla, California, USA
| | - Wendy L Havran
- Immunology and Microbiology, Scripps Research Institute, La Jolla, California, USA
| | - João B Calixto
- Center of Innovation and Preclinical Studies (CIENP), Florianópolis, Brazil
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Wang Z, Zhao Y, Phipps-Green A, Liu-Bryan R, Ceponis A, Boyle DL, Wang J, Merriman TR, Wang W, Terkeltaub R. Differential DNA Methylation of Networked Signaling, Transcriptional, Innate and Adaptive Immunity, and Osteoclastogenesis Genes and Pathways in Gout. Arthritis Rheumatol 2020; 72:802-814. [PMID: 31738005 DOI: 10.1002/art.41173] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/14/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVE In gout, autoinflammatory responses to urate crystals promote acute arthritis flares, but the pathogeneses of tophi, chronic synovitis, and erosion are less well understood. Defining the pathways of epigenomic immunity training can reveal novel pathogenetic factors and biomarkers. The present study was undertaken to seminally probe differential DNA methylation patterns utilizing epigenome-wide analyses in patients with gout. METHODS Peripheral blood mononuclear cells (PBMCs) were obtained from a San Diego cohort of patients with gout (n = 16) and individually matched healthy controls (n = 14). PBMC methylome data were processed with ChAMP package in R. ENCODE data and Taiji data analysis software were used to analyze transcription factor (TF)-gene networks. As an independent validation cohort, whole blood DNA samples from New Zealand Māori subjects (n = 13 patients with gout, n = 16 control subjects without gout) were analyzed. RESULTS Differentially methylated loci clearly separated gout patients from controls, as determined by hierarchical clustering and principal components analyses. IL23R, which mediates granuloma formation and cell invasion, was identified as one of the multiple differentially methylated gout risk genes. Epigenome-wide analyses revealed differential methylome pathway enrichment for B and T cell receptor signaling, Th17 cell differentiation and interleukin-17 signaling, convergent longevity regulation, circadian entrainment, and AMP-activated protein kinase signaling, which are pathways that impact inflammation via insulin-like growth factor 1 receptor, phosphatidylinositol 3-kinase/Akt, NF-κB, mechanistic target of rapamycin signaling, and autophagy. The gout cohorts overlapped for 37 (52.9%) of the 70 TFs with hypomethylated sequence enrichment and for 30 (78.9%) of the 38 enriched KEGG pathways identified via TFs. Evidence of shared differentially methylated gout TF-gene networks, including the NF-κB activation-limiting TFs MEF2C and NFATC2, pointed to osteoclast differentiation as the most strongly weighted differentially methylated pathway that overlapped in both gout cohorts. CONCLUSION These findings of differential DNA methylation of networked signaling, transcriptional, innate and adaptive immunity, and osteoclastogenesis genes and pathways suggest that they could serve as novel therapeutic targets in the management of flares, tophi, chronic synovitis, and bone erosion in patients with gout.
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Affiliation(s)
| | | | | | - Ru Liu-Bryan
- University of California, San Diego and San Diego VAMC
| | | | | | - Jun Wang
- University of California, San Diego
| | | | - Wei Wang
- University of California, San Diego
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Ehrenfeld P, Bhoola KD, Matus CE, Figueroa CD. Functional interrelationships between the kallikrein-related peptidases family and the classical kinin system in the human neutrophil. Biol Chem 2019; 399:925-935. [PMID: 29883315 DOI: 10.1515/hsz-2017-0338] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 04/15/2018] [Indexed: 11/15/2022]
Abstract
In the human neutrophil, kallikrein-related peptidases (KLKs) have a significant functional relationship with the classical kinin system as a kinin B1 receptor agonist induces secretion of KLK1, KLK6, KLK10, KLK13 and KLK14 into the medium. Secretion of KLK1, the kinin-forming enzyme, may perpetuate formation of kinin in the inflammatory milieu by hydrolyzing extravasated kininogens present in tissue edema. Secretion of KLKs into the inflammatory milieu, induced by kinins or other proinflammatory mediators, provides the human neutrophil with a wide range of molecular interactions to hydrolyze different cellular and extracellular matrix components, which may be of critical relevance in different mechanisms involving inflammation.
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Affiliation(s)
- Pamela Ehrenfeld
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology and Pathology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - Kanti D Bhoola
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology and Pathology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - Carola E Matus
- Departament of Basic Sciences, Faculty of Medicine, Universidad de la Frontera, Temuco, Chile
| | - Carlos D Figueroa
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology and Pathology, Faculty of Medicine, Universidad Austral de Chile, 5110712 Valdivia, Chile.,Centro Interdisciplinario de Estudios del Sistema Nervioso (CISNe), Universidad Austral de Chile, Valdivia, Chile
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Moran CS, Rush CM, Dougan T, Jose RJ, Biros E, Norman PE, Gera L, Golledge J. Modulation of Kinin B2 Receptor Signaling Controls Aortic Dilatation and Rupture in the Angiotensin II-Infused Apolipoprotein E-Deficient Mouse. Arterioscler Thromb Vasc Biol 2016; 36:898-907. [PMID: 26966276 DOI: 10.1161/atvbaha.115.306945] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 02/29/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Abdominal aortic aneurysm (AAA) is an important cause of mortality in older adults. Activity of the local kallikrein-kinin system may be important in cardiovascular disease. The effect of kinin B2 receptor (B2R) agonist and antagonist peptides on experimental AAA was investigated. APPROACH AND RESULTS AAA was induced in apolipoprotein E-deficient mice via infusion of angiotensin II (1.0 μg/kg per minute SC). B2R agonists or antagonists were given via injection (2 mg/kg IP) every other day. The B2R agonist (B9772) promoted aortic rupture in response to angiotensin II associated with an increase in neutrophil infiltration of the aorta in comparison to controls. Mice receiving a B2R/kinin B1 receptor antagonist (B9430) were relatively protected from aortic rupture. Neutrophil depletion abrogated the ability of the B2R agonist to promote aortic rupture. Progression of angiotensin II-induced aortic dilatation was inhibited in mice receiving a B2R antagonist (B9330). Secretion of metalloproteinase-2 and -9, osteoprotegerin, and osteopontin by human AAA explant was reduced in the presence of the B2R antagonist (B9330). B2R agonist and antagonist peptides enhanced and inhibited, respectively, angiotensin II-induced neutrophil activation and aortic smooth muscle cell inflammatory phenotype. The B2R antagonist (B9330; 5 μg) delivered directly to the aortic wall 1 week post-AAA induction with calcium phosphate in a rat model reduced aneurysm growth associated with downregulation of aortic metalloproteinase-9. CONCLUSIONS B2R signaling promotes aortic rupture within a mouse model associated with the ability to stimulate inflammatory phenotypes of neutrophils and vascular smooth muscle cells. B2R antagonism could be a potential therapy for AAA.
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Affiliation(s)
- Corey S Moran
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.)
| | - Catherine M Rush
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.)
| | - Tammy Dougan
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.)
| | - Roby J Jose
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.)
| | - Erik Biros
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.)
| | - Paul E Norman
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.)
| | - Lajos Gera
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.)
| | - Jonathan Golledge
- From the Vascular Biology Unit, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine & Dentistry (C.S.M., T.D., R.J.J., E.B., J.G.), and Discipline of Biomedicine, College of Public Health, Medical and Veterinary Sciences (C.M.R.), James Cook University, Townsville, Queensland, Australia; Department of Biochemistry, University of Colorado Denver, Aurora (L.G.); School of Surgery, University of Western Australia, Fremantle Hospital, Fremantle, Western Australia, Australia (P.E.N.); and Department of Vascular and Endovascular Surgery, The Townsville Hospital, Townsville, Queensland, Australia (J.G.).
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Silva CR, Oliveira SM, Hoffmeister C, Funck V, Guerra GP, Trevisan G, Tonello R, Rossato MF, Pesquero JB, Bader M, Oliveira MS, McDougall JJ, Ferreira J. The role of kinin B1 receptor and the effect of angiotensin I-converting enzyme inhibition on acute gout attacks in rodents. Ann Rheum Dis 2014; 75:260-8. [PMID: 25344431 DOI: 10.1136/annrheumdis-2014-205739] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Accepted: 09/12/2014] [Indexed: 02/01/2023]
Abstract
OBJECTIVE Verify the role of the kinin B1 receptors (B1R) and the effect of ACE inhibitors (ACEi) on acute gout induced by monosodium urate (MSU) crystals in rodents. METHODS Painful (overt pain and allodynia) and inflammatory parameters (joint oedema, leukocyte trafficking, interleukin-1β levels) of acute gout attacks were assessed several hours after an intra-articular injection of MSU (1.25 or 0.5 mg/articulation) into the ankle of rats or mice, respectively. The role of B1R was investigated using pharmacological antagonism or gene deletion. Additionally, B1R immunoreactivity in ankle tissue and sensory neurons, kininase I activity and des-Arg(9)-bradykinin synovial levels were also measured. Similar tools were used to investigate the effects of ACEi on a low dose of MSU (0.0125 mg/articulation)-induced inflammation. RESULTS Kinin B1R antagonism or gene deletion largely reduced all painful and inflammatory signs of gout. Furthermore, MSU increased B1R expression in articular tissues, the content of the B1 agonist des-Arg(9)-bradykinin and the activity of the B1 agonist-forming enzyme kininase I. A low dose of MSU crystals, which did not induce inflammation in control animals, caused signs of acute gout attacks in ACEi-treated animals that were B1R-dependent. CONCLUSIONS Kinin B1R contributes to acute gouty attacks, including the ones facilitated by ACEi. Therefore, B1R is a potential therapeutic target for the treatment and prophylaxis of gout, especially in patients taking ACEi.
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Affiliation(s)
- Cássia R Silva
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sara M Oliveira
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Carin Hoffmeister
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Vinícius Funck
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Gustavo P Guerra
- Center for Food Sciences, Federal Technologic University of Paraná, Medianeira, PR, Brazil
| | - Gabriela Trevisan
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Raquel Tonello
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Mateus F Rossato
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - João B Pesquero
- Department of Biophysics, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Michael Bader
- Max-Delbrück-Center for Molecular Medicine (MDC) and Charité, University Medicine, Berlin, Germany
| | - Mauro S Oliveira
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Jason J McDougall
- Departments of Pharmacology and Anesthesia, Pain Management & Perioperative Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Juliano Ferreira
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Antagonism of bradykinin B2 receptor prevents inflammatory responses in human endothelial cells by quenching the NF-kB pathway activation. PLoS One 2014; 9:e84358. [PMID: 24392129 PMCID: PMC3879294 DOI: 10.1371/journal.pone.0084358] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 11/14/2013] [Indexed: 01/17/2023] Open
Abstract
Background Bradykinin (BK) induces angiogenesis by promoting vessel permeability, growth and remodeling. This study aimed to demonstrate that the B2R antagonist, fasitibant, inhibits the BK pro-angiogenic effects. Methodology We assesed the ability of fasibitant to antagonize the BK stimulation of cultured human cells (HUVEC) and circulating pro-angiogenic cells (PACs), in producing cell permeability (paracellular flux), migration and pseocapillary formation. The latter parameter was studied in vitro (matrigel assay) and in vivo in mice (matrigel plug) and in rat model of experimental osteoarthritis (OA). We also evaluated NF-κB activation in cultured cells by measuring its nuclear translocation and its downstream effectors such as the proangiogenic ciclooxygenase-2 (COX-2), prostaglandin E-2 and vascular endothelial growth factor (VEGF). Principal findings HUVEC, exposed to BK (1–10 µM), showed increased permeability, disassembly of adherens and tight-junction, increased cell migration, and pseudocapillaries formation. We observed a significant increase of vessel density in the matrigel assay in mice and in rats OA model. Importantly, B2R stimulation elicited, both in HUVEC and PACs, NF-κB activation, leading to COX-2 overexpression, enhanced prostaglandin E-2 production. and VEGF output. The BK/NF-κB axis, and the ensuing amplification of inflammatory/angiogenic responses were fully prevented by fasitibant as well as by IKK VII, an NF-κB. Inhibitor. Conclusion This work illustrates the role of the endothelium in the inflammation provoked by the BK/NF-κB axis. It also demonstates that B2R blockade by the antaogonist fasibitant, abolishes both the initial stimulus and its amplification, strongly attenuating the propagation of inflammation.
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Gene expression profiling in dermatitis herpetiformis skin lesions. Clin Dev Immunol 2012; 2012:198956. [PMID: 22991566 PMCID: PMC3443590 DOI: 10.1155/2012/198956] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 07/22/2012] [Accepted: 08/05/2012] [Indexed: 12/17/2022]
Abstract
Dermatitis herpetiformis (DH) is an autoimmune blistering skin disease associated with gluten-sensitive enteropathy (CD). In order to investigate the pathogenesis of skin lesions at molecular level, we analysed the gene expression profiles in skin biopsies from 6 CD patients with DH and 6 healthy controls using Affymetrix HG-U133A 2.0 arrays. 486 genes were differentially expressed in DH skin compared to normal skin: 225 were upregulated and 261 were downregulated. Consistently with the autoimmune origin of DH, functional classification of the differentially expressed genes (DEGs) indicates a B- and T-cell immune response (LAG3, TRAF5, DPP4, and NT5E). In addition, gene modulation provides evidence for a local inflammatory response (IL8, PTGFR, FSTL1, IFI16, BDKRD2, and NAMPT) with concomitant leukocyte recruitment (CCL5, ENPP2), endothelial cell activation, and neutrophil extravasation (SELL, SELE). DEGs also indicate overproduction of matrix proteases (MMP9, ADAM9, and ADAM19) and proteolytic enzymes (CTSG, ELA2, CPA3, TPSB2, and CMA1) that may contribute to epidermal splitting and blister formation. Finally, we observed modulation of genes involved in cell growth inhibition (CGREF1, PA2G4, and PPP2R1B), increased apoptosis (FAS, TNFSF10, and BASP1), and reduced adhesion at the dermal epidermal junction (PLEC1, ITGB4, and LAMA5). In conclusion, our results identify genes that are involved in the pathogenesis of DH skin lesions.
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