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Kariminezhad Z, Rahimi M, Fernandes J, Maltais R, Sancéau JY, Poirier D, Fahmi H, Benderdour M. Development of New Resolvin D1 Analogues for Osteoarthritis Therapy: Acellular and Computational Approaches to Study Their Antioxidant Activities. Antioxidants (Basel) 2024; 13:386. [PMID: 38671833 PMCID: PMC11047542 DOI: 10.3390/antiox13040386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/07/2024] [Accepted: 03/15/2024] [Indexed: 04/28/2024] Open
Abstract
In osteoarthritis (OA), oxidative stress plays a crucial role in maintaining and sustaining cartilage degradation. Current OA management requires a combination of pharmaceutical and non-pharmacological strategies, including intraarticular injections of hyaluronic acid (HA). However, several lines of evidence reported that HA oxidation by reactive oxygen species (ROS) is linked with HA cleavage and fragmentation, resulting in reduced HA viscosity. Resolvin D1 (RvD1) is a lipid mediator that is biosynthesized from omega-3 polyunsaturated fatty acids and is a good candidate with the potential to regulate a panoply of biological processes, including tissue repair, inflammation, oxidative stress, and cell death in OA. Herein, newly designed and synthesized imidazole-derived RvD1 analogues were introduced to compare their potential antioxidant properties with commercially available RvD1. Their antioxidant capacities were investigated by several in vitro chemical assays including oxygen radical absorbance capacity, 2,2-diphenyl-1-picrylhydrazyl radical scavenging, ferric ion reducing antioxidant power, hydroxyl radical scavenging, and HA fragmentation assay. All results proved that imidazole-derived RvD1 analogues showed excellent antioxidant performance compared to RvD1 due to their structural modifications. Interestingly, they scavenged the formed reactive oxygen species (ROS) and protected HA from degradation, as verified by agarose gel electrophoresis and gel permission chromatography. A computational study using Gaussian 09 with DFT calculations and a B3LYP/6-31 G (d, p) basis set was also employed to study the relationship between the antioxidant properties and chemical structures as well as calculation of the molecular structures, frontier orbital energy, molecular electrostatic potential, and bond length. The results showed that the antioxidant activity of our analogues was higher than that of RvD1. In conclusion, the findings suggest that imidazole-derived RvD1 analogues can be good candidates as antioxidant molecules for the treatment of oxidative stress-related diseases like OA. Therefore, they can prolong the longevity of HA in the knee and thus may improve the mobility of the articulation.
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Affiliation(s)
- Zahra Kariminezhad
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, QC H4J 1C5, Canada; (Z.K.); (M.R.); (J.F.)
| | - Mahdi Rahimi
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, QC H4J 1C5, Canada; (Z.K.); (M.R.); (J.F.)
| | - Julio Fernandes
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, QC H4J 1C5, Canada; (Z.K.); (M.R.); (J.F.)
| | - René Maltais
- Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada; (R.M.); (J.-Y.S.); (D.P.)
| | - Jean-Yves Sancéau
- Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada; (R.M.); (J.-Y.S.); (D.P.)
| | - Donald Poirier
- Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada; (R.M.); (J.-Y.S.); (D.P.)
- Organic Synthesis Service, Medicinal Chemistry Platform, CHU de Québec Research Center, Université Laval, Québec, QC G1V 4G2, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montréal, QC H2X 0A9, Canada;
| | - Mohamed Benderdour
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, QC H4J 1C5, Canada; (Z.K.); (M.R.); (J.F.)
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Najar M, Rahmani S, Faour WH, Alsabri SG, Lombard CA, Fayyad-Kazan H, Sokal EM, Merimi M, Fahmi H. Umbilical Cord Mesenchymal Stromal/Stem Cells and Their Interplay with Th-17 Cell Response Pathway. Cells 2024; 13:169. [PMID: 38247860 PMCID: PMC10814115 DOI: 10.3390/cells13020169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
As a form of immunomodulatory therapeutics, mesenchymal stromal/stem cells (MSCs) from umbilical cord (UC) tissue were assessed for their dynamic interplay with the Th-17 immune response pathway. UC-MSCs were able to modulate lymphocyte response by promoting a Th-17-like profile. Such modulation depended on the cell ratio of the cocultures as well as the presence of an inflammatory setting underlying their plasticity. UC-MSCs significantly increased the expression of IL-17A and RORγt but differentially modulated T cell expression of IL-23R. In parallel, the secretion profile of the fifteen factors (IL1β, IL-4, IL-6, IL-10, IL-17A, IL-17F, IL-22, IL-21, IL-23, IL-25, IL-31, IL-33, INF-γ, sCD40, and TNF-α) involved in the Th-17 immune response pathway was substantially altered during these cocultures. The modulation of these factors demonstrates the capacity of UC-MSCs to sense and actively respond to tissue challenges. Protein network and functional enrichment analysis indicated that several biological processes, molecular functions, and cellular components linked to distinct Th-17 signaling interactions are involved in several trophic, inflammatory, and immune network responses. These immunological changes and interactions with the Th-17 pathway are likely critical to tissue healing and may help to identify molecular targets that will improve therapeutic strategies involving UC-MSCs.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
- Faculty of Medicine, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Saida Rahmani
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Wissam H. Faour
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, P.O. Box 36, Byblos 5053, Lebanon
| | - Sami G. Alsabri
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Catherine A. Lombard
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Hussein Fayyad-Kazan
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, P.O. Box 6573/14, Beirut 1103, Lebanon
| | - Etienne M. Sokal
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Makram Merimi
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
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Alsabri SG, Guedi GG, Najar M, Merimi M, Lavoie F, Grabs D, Fernandes J, Pelletier JP, Martel-Pelletier J, Benderdour M, Fahmi H. Epigenetic regulation of 15-lipoxygenase-1 expression in human chondrocytes by promoter methylation. Inflamm Res 2023; 72:2145-2153. [PMID: 37874359 DOI: 10.1007/s00011-023-01805-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/23/2023] [Accepted: 10/10/2023] [Indexed: 10/25/2023] Open
Abstract
OBJECTIVE AND DESIGN 15-Lipoxygenase-1 (15-LOX-1) catalyzes the biosynthesis of many anti-inflammatory and immunomodulatory lipid mediators and was reported to have protective properties in several inflammatory conditions, including osteoarthritis (OA). This study was designed to evaluate the expression of 15-LOX-1 in cartilage from normal donors and patients with OA, and to determine whether it is regulated by DNA methylation. METHODS Cartilage samples were obtained at autopsy from normal knee joints and from OA-affected joints at the time of total knee joint replacement surgery. The expression of 15-LOX-1 was evaluated using real-time polymerase chain reaction (PCR). The role of DNA methylation in 15-LOX-1 expression was assessed using the DNA methyltransferase inhibitor 5-Aza-2'-desoxycytidine (5-Aza-dC). The effect of CpG methylation on 15-LOX-1 promoter activity was evaluated using a CpG-free luciferase vector. The DNA methylation status of the 15-LOX-1 promoter was determined by pyrosequencing. RESULTS Expression of 15-LOX-1 was upregulated in OA compared to normal cartilage. Treatment with 5-Aza-dC increased 15-LOX-1 mRNA levels in chondrocytes, and in vitro methylation decreased 15-LOX-1 promoter activity. There was no difference in the methylation status of the 15-LOX-1 gene promoter between normal and OA cartilage. CONCLUSION The expression level of 15-LOX-1 was elevated in OA cartilage, which may be part of a repair process. The upregulation of 15-LOX-1 in OA cartilage was not associated with the methylation status of its promoter, suggesting that other mechanisms are involved in its upregulation.
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Affiliation(s)
- Sami G Alsabri
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Gadid G Guedi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Makram Merimi
- LBEES, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohamed Premier, Oujda, Morocco
| | - Frédéric Lavoie
- Departement of Orthopedic Surgery, Centre Hospitalier de L'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Detlev Grabs
- Department of Anatomy, Research Unit in Clinical and Functional Anatomy, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Julio Fernandes
- Departement of Orthopedic Surgery, Centre Hospitalier de L'Université de Montréal (CHUM), Montréal, Québec, Canada
- Orthopedics Research Laboratory, Research Center, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, Québec, H4J 1C5, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Mohamed Benderdour
- Orthopedics Research Laboratory, Research Center, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, Québec, H4J 1C5, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada.
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Najar M, Alsabri SG, Guedi GG, Merimi M, Lavoie F, Grabs D, Pelletier JP, Martel-Pelletier J, Benderdour M, Fahmi H. Role of epigenetics and the transcription factor Sp1 in the expression of the D prostanoid receptor 1 in human cartilage. Front Cell Dev Biol 2023; 11:1256998. [PMID: 38099292 PMCID: PMC10720455 DOI: 10.3389/fcell.2023.1256998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/16/2023] [Indexed: 12/17/2023] Open
Abstract
D prostanoid receptor 1 (DP1), a prostaglandin D2 receptor, plays a central role in the modulation of inflammation and cartilage metabolism. We have previously shown that activation of DP1 signaling downregulated catabolic responses in cultured chondrocytes and was protective in mouse osteoarthritis (OA). However, the mechanisms underlying its transcriptional regulation in cartilage remained poorly understood. In the present study, we aimed to characterize the human DP1 promoter and the role of DNA methylation in DP1 expression in chondrocytes. In addition, we analyzed the expression level and methylation status of the DP1 gene promoter in normal and OA cartilage. Deletion and site-directed mutagenesis analyses identified a minimal promoter region (-250/-120) containing three binding sites for specificity protein 1 (Sp1). Binding of Sp1 to the DP1 promoter was confirmed using electrophoretic mobility shift assay (EMSA) and chromatin immunoprecipitation (ChIP) assays. Treatment with the Sp1 inhibitor mithramycin A reduced DP1 promoter activity and DP1 mRNA expression. Inhibition of DNA methylation by 5-Aza-2'-deoxycytidine upregulated DP1 expression, and in vitro methylation reduced the DP1 promoter activity. Neither the methylation status of the DP1 promoter nor the DP1 expression level were different between normal and OA cartilage. In conclusion, our results suggest that the transcription factor Sp1 and DNA methylation are important determinants of DP1 transcription regulation. They also suggest that the methylation status and expression level of DP1 are not altered in OA cartilage. These findings will improve our understanding of the regulatory mechanisms of DP1 transcription and may facilitate the development of intervention strategies involving DP1.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Sami G. Alsabri
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Gadid G. Guedi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Makram Merimi
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Frédéric Lavoie
- Departement of Orthopedic Surgery, University of Montreal Hospital Center (CHUM), Montréal, QC, Canada
| | - Detlev Grabs
- Research Unit in Clinical and Functional Anatomy, Department of Anatomy, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Mohamed Benderdour
- Orthopedics Research Laboratory, Research Center, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, QC, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
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Najar M, Fahmi H, Merimi M. The Medicinal Potential of Mesenchymal Stem/Stromal Cells in Immuno- and Cancer Therapy. Biomolecules 2023; 13:1171. [PMID: 37627236 PMCID: PMC10452446 DOI: 10.3390/biom13081171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/22/2023] [Indexed: 08/27/2023] Open
Abstract
Cancer is a highly lethal disease that causes millions of deaths worldwide, thus representing a major public health challenge [...].
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Affiliation(s)
- Mehdi Najar
- Faculty of Medicine, Université Libre de Bruxelles, 1070 Brussels, Belgium
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Makram Merimi
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
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Merimi M, Fahmi H, De Kock J, Beguin C, Burny A, Moll G, Poggi A, Najar M. Mesenchymal Stem/Stromal Cells as a Therapeutic Tool in Cell-Based Therapy and Regenerative Medicine: An Introduction Expertise to the Topical Collection. Cells 2022; 11:cells11193158. [PMID: 36231120 PMCID: PMC9562654 DOI: 10.3390/cells11193158] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- Makram Merimi
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
- Department of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Joery De Kock
- Liver Therapy & Evolution Team, Research Group of In Vitro Toxicology and Dermato-Cosmetology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, 1090 Brussels, Belgium
| | - Charline Beguin
- Laboratory of Immunophysiology, GIGA Institute, Liege University, 4000 Liège, Belgium
| | - Arsène Burny
- Laboratory of Molecular and Cellular Biology, Faculté Universitaire des Sciences Agronomiques de Gembloux (FUSAGx), 5030 Gembloux, Belgium
| | - Guido Moll
- BIH Center for Regenerative Therapies (BCRT) and Berlin Brandenburg School of Regenerative Therapies (BSRT), Berlin Institute of Health (BIH), Charité—Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Alessandro Poggi
- Molecular Oncology and Angiogenesis Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Mehdi Najar
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
- Department of Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1070 Brussels, Belgium
- Correspondence:
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Merimi M, Rahmani S, Afailal Tribak A, Bouhtit F, Fahmi H, Najar M. Fundamental and Applied Advances in Stem Cell Therapeutic Research. Cells 2022; 11:cells11121976. [PMID: 35741105 PMCID: PMC9221776 DOI: 10.3390/cells11121976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/06/2022] [Indexed: 11/16/2022] Open
Abstract
We are pleased to present this Special Issue of Cells, entitled 'Feature Papers in Stem Cells' [...].
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Affiliation(s)
- Makram Merimi
- Experimental Hematology, Jules Bordet Institute, Unive and nd nd ité Libre de Bruxelles, 1070 Bruxelles, Belgium; (M.M.); (S.R.); (A.A.T.); (F.B.)
- Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Saida Rahmani
- Experimental Hematology, Jules Bordet Institute, Unive and nd nd ité Libre de Bruxelles, 1070 Bruxelles, Belgium; (M.M.); (S.R.); (A.A.T.); (F.B.)
- Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Ahmed Afailal Tribak
- Experimental Hematology, Jules Bordet Institute, Unive and nd nd ité Libre de Bruxelles, 1070 Bruxelles, Belgium; (M.M.); (S.R.); (A.A.T.); (F.B.)
| | - Fatima Bouhtit
- Experimental Hematology, Jules Bordet Institute, Unive and nd nd ité Libre de Bruxelles, 1070 Bruxelles, Belgium; (M.M.); (S.R.); (A.A.T.); (F.B.)
- Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada;
| | - Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada;
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles, 1070 Brussels, Belgium
- Correspondence:
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Tardif G, Paré F, Gotti C, Roux-Dalvai F, Droit A, Zhai G, Sun G, Fahmi H, Pelletier JP, Martel-Pelletier J. Mass spectrometry-based proteomics identify novel serum osteoarthritis biomarkers. Arthritis Res Ther 2022; 24:120. [PMID: 35606786 PMCID: PMC9125906 DOI: 10.1186/s13075-022-02801-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 05/08/2022] [Indexed: 11/10/2022] Open
Abstract
Background Osteoarthritis (OA) is a slowly developing and debilitating disease, and there are no validated specific biomarkers for its early detection. To improve therapeutic approaches, identification of specific molecules/biomarkers enabling early determination of this disease is needed. This study aimed at identifying, with the use of proteomics/mass spectrometry, novel OA-specific serum biomarkers. As obesity is a major risk factor for OA, we discriminated obesity-regulated proteins to target only OA-specific proteins as biomarkers. Methods Serum from the Osteoarthritis Initiative cohort was used and divided into 3 groups: controls (n=8), OA-obese (n=10) and OA-non-obese (n=10). Proteins were identified and quantified from the liquid chromatography–tandem mass spectrometry analyses using MaxQuant software. Statistical analysis used the Limma test followed by the Benjamini-Hochberg method. To compare the proteomic profiles, the multivariate unsupervised principal component analysis (PCA) followed by the pairwise comparison was used. To select the most predictive/discriminative features, the supervised linear classification model sparse partial least squares regression discriminant analysis (sPLS-DA) was employed. Validation of three differential proteins was performed with protein-specific assays using plasma from a cohort derived from the Newfoundland Osteoarthritis. Results In total, 509 proteins were identified, and 279 proteins were quantified. PCA-pairwise differential comparisons between the 3 groups revealed that 8 proteins were differentially regulated between the OA-obese and/or OA-non-obese with controls. Further experiments using the sPLS-DA revealed two components discriminating OA from controls (component 1, 9 proteins), and OA-obese from OA-non-obese (component 2, 23 proteins). Proteins from component 2 were considered related to obesity. In component 1, compared to controls, 7 proteins were significantly upregulated by both OA groups and 2 by the OA-obese. Among upregulated proteins from both OA groups, some of them alone would not be a suitable choice as specific OA biomarkers due to their rather non-specific role or their strong link to other pathological conditions. Altogether, data revealed that the protein CRTAC1 appears to be a strong OA biomarker candidate. Other potential new biomarker candidates are the proteins FBN1, VDBP, and possibly SERPINF1. Validation experiments revealed statistical differences between controls and OA for FBN1 (p=0.044) and VDPB (p=0.022), and a trend for SERPINF1 (p=0.064). Conclusion Our study suggests that 4 proteins, CRTAC1, FBN1, VDBP, and possibly SERPINF1, warrant further investigation as potential new biomarker candidates for the whole OA population. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02801-1.
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Affiliation(s)
- Ginette Tardif
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, Suite R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Frédéric Paré
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, Suite R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Clarisse Gotti
- CHU de Québec Research Center, Laval University, Quebec, QC, G1V 4G2, Canada
| | | | - Arnaud Droit
- CHU de Québec Research Center, Laval University, Quebec, QC, G1V 4G2, Canada
| | - Guangju Zhai
- Division of Biomedical Sciences (Genetics), Memorial University of Newfoundland, St. John's, NL, A1B 3V6, Canada
| | - Guang Sun
- Discipline of Medicine, Memorial University of Newfoundland, St. John's, NL, A1B 3V6, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, Suite R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, Suite R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, Suite R11.412B, Montreal, QC, H2X 0A9, Canada.
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Najar M, Melki R, Khalife F, Lagneaux L, Bouhtit F, Moussa Agha D, Fahmi H, Lewalle P, Fayyad-Kazan M, Merimi M. Therapeutic Mesenchymal Stem/Stromal Cells: Value, Challenges and Optimization. Front Cell Dev Biol 2022; 9:716853. [PMID: 35096805 PMCID: PMC8795900 DOI: 10.3389/fcell.2021.716853] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 11/02/2021] [Indexed: 12/13/2022] Open
Abstract
Cellular therapy aims to replace damaged resident cells by restoring cellular and molecular environments suitable for tissue repair and regeneration. Among several candidates, mesenchymal stem/stromal cells (MSCs) represent a critical component of stromal niches known to be involved in tissue homeostasis. In vitro, MSCs appear as fibroblast-like plastic adherent cells regardless of the tissue source. The therapeutic value of MSCs is being explored in several conditions, including immunological, inflammatory and degenerative diseases, as well as cancer. An improved understanding of their origin and function would facilitate their clinical use. The stemness of MSCs is still debated and requires further study. Several terms have been used to designate MSCs, although consensual nomenclature has yet to be determined. The presence of distinct markers may facilitate the identification and isolation of specific subpopulations of MSCs. Regarding their therapeutic properties, the mechanisms underlying their immune and trophic effects imply the secretion of various mediators rather than direct cellular contact. These mediators can be packaged in extracellular vesicles, thus paving the way to exploit therapeutic cell-free products derived from MSCs. Of importance, the function of MSCs and their secretome are significantly sensitive to their environment. Several features, such as culture conditions, delivery method, therapeutic dose and the immunobiology of MSCs, may influence their clinical outcomes. In this review, we will summarize recent findings related to MSC properties. We will also discuss the main preclinical and clinical challenges that may influence the therapeutic value of MSCs and discuss some optimization strategies.
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Affiliation(s)
- Mehdi Najar
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium.,Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Rahma Melki
- Genetics and Immune-Cell Therapy Unit, LBBES Laboratory, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Ferial Khalife
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Hadath, Lebanon
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Fatima Bouhtit
- Genetics and Immune-Cell Therapy Unit, LBBES Laboratory, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco.,Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Douaa Moussa Agha
- Genetics and Immune-Cell Therapy Unit, LBBES Laboratory, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco.,Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Philippe Lewalle
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Mohammad Fayyad-Kazan
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Hadath, Lebanon.,Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Hadath, Lebanon
| | - Makram Merimi
- Genetics and Immune-Cell Therapy Unit, LBBES Laboratory, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco.,Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
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10
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Najar M, Merimi M, Faour WH, Lombard CA, Moussa Agha D, Ouhaddi Y, Sokal EM, Lagneaux L, Fahmi H. In Vitro Cellular and Molecular Interplay between Human Foreskin-Derived Mesenchymal Stromal/Stem Cells and the Th17 Cell Pathway. Pharmaceutics 2021; 13:1736. [PMID: 34684029 PMCID: PMC8537928 DOI: 10.3390/pharmaceutics13101736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 10/06/2021] [Accepted: 10/13/2021] [Indexed: 12/13/2022] Open
Abstract
Foreskin, considered a biological waste material, has been shown to be a reservoir of therapeutic cells. The immunomodulatory properties of mesenchymal stromal/stem cells (MSCs) from the foreskin (FSK-MSCs) are being evaluated in cell-based therapy for degenerative, inflammatory and autoimmune disorders. Within the injured/inflamed tissue, proinflammatory lymphocytes such as IL-17-producing T helper cells (Th17) may interact with the stromal microenvironment, including MSCs. In this context, MSCs may encounter different levels of T cells as well as specific inflammatory signals. Uncovering the cellular and molecular changes during this interplay is central for developing an efficient and safe immunotherapeutic tool. To this end, an in vitro human model of cocultures of FSK-MSCs and T cells was established. These cocultures were performed at different cell ratios in the presence of an inflammatory setting. After confirming that FSK-MSCs respond to ISCT criteria by showing a typical phenotype and multilineage potential, we evaluated by flow cytometry the expression of Th17 cell markers IL-17A, IL23 receptor and RORγt within the lymphocyte population. We also measured 15 human Th17 pathway-related cytokines. Regardless of the T cell/MSC ratio, we observed a significant increase in IL-17A expression associated with an increase in IL-23 receptor expression. Furthermore, we observed substantial modulation of IL-1β, IL-4, IL-6, IL-10, IL-17A, IL-17F, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, INF-γ, sCD40, and TNF-α secretion. These findings suggest that FSK-MSCs are receptive to their environment and modulate the T cell response accordingly. The changes within the secretome of the stromal and immune environment are likely relevant for the therapeutic effect of MSCs. FSK-MSCs represent a valuable cellular product for immunotherapeutic purposes that needs to be further clarified and developed.
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Affiliation(s)
- Mehdi Najar
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles, 1070 Brussels, Belgium; (M.N.); (L.L.)
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Makram Merimi
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Brussels, Belgium; (M.M.); (D.M.A.)
- LBBES Laboratory, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Wissam H. Faour
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, P.O. Box 36, Byblos 5053, Lebanon;
| | - Catherine A. Lombard
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium; (C.A.L.); (E.M.S.)
| | - Douâa Moussa Agha
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Brussels, Belgium; (M.M.); (D.M.A.)
| | - Yassine Ouhaddi
- Orthopaedics Division, Department of Surgery, Faculty of Medicine, McGill University, Montreal General Hospital (MGH), The Research Institute of the McGill University Health Centre (RI-MUHC), Montreal, QC H3G 1A4, Canada;
| | - Etienne M. Sokal
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale et Clinique (IREC), Université Catholique de Louvain, 1200 Brussels, Belgium; (C.A.L.); (E.M.S.)
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles, 1070 Brussels, Belgium; (M.N.); (L.L.)
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
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11
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Merimi M, El-Majzoub R, Lagneaux L, Moussa Agha D, Bouhtit F, Meuleman N, Fahmi H, Lewalle P, Fayyad-Kazan M, Najar M. The Therapeutic Potential of Mesenchymal Stromal Cells for Regenerative Medicine: Current Knowledge and Future Understandings. Front Cell Dev Biol 2021; 9:661532. [PMID: 34490235 PMCID: PMC8416483 DOI: 10.3389/fcell.2021.661532] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 05/28/2021] [Indexed: 12/11/2022] Open
Abstract
In recent decades, research on the therapeutic potential of progenitor cells has advanced considerably. Among progenitor cells, mesenchymal stromal cells (MSCs) have attracted significant interest and have proven to be a promising tool for regenerative medicine. MSCs are isolated from various anatomical sites, including bone marrow, adipose tissue, and umbilical cord. Advances in separation, culture, and expansion techniques for MSCs have enabled their large-scale therapeutic application. This progress accompanied by the rapid improvement of transplantation practices has enhanced the utilization of MSCs in regenerative medicine. During tissue healing, MSCs may exhibit several therapeutic functions to support the repair and regeneration of injured tissue. The process underlying these effects likely involves the migration and homing of MSCs, as well as their immunotropic functions. The direct differentiation of MSCs as a cell replacement therapeutic mechanism is discussed. The fate and behavior of MSCs are further regulated by their microenvironment, which may consequently influence their repair potential. A paracrine pathway based on the release of different messengers, including regulatory factors, chemokines, cytokines, growth factors, and nucleic acids that can be secreted or packaged into extracellular vesicles, is also implicated in the therapeutic properties of MSCs. In this review, we will discuss relevant outcomes regarding the properties and roles of MSCs during tissue repair and regeneration. We will critically examine the influence of the local microenvironment, especially immunological and inflammatory signals, as well as the mechanisms underlying these therapeutic effects. Importantly, we will describe the interactions of local progenitor and immune cells with MSCs and their modulation during tissue injury. We will also highlight the crucial role of paracrine pathways, including the role of extracellular vesicles, in this healing process. Moreover, we will discuss the therapeutic potential of MSCs and MSC-derived extracellular vesicles in the treatment of COVID-19 (coronavirus disease 2019) patients. Overall, this review will provide a better understanding of MSC-based therapies as a novel immunoregenerative strategy.
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Affiliation(s)
- Makram Merimi
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium.,LBBES Laboratory, Genetics and Immune-Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Rania El-Majzoub
- Department of Biomedical Sciences, School of Pharmacy, Lebanese International University, Beirut, Lebanon.,Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Douâa Moussa Agha
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Fatima Bouhtit
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium.,LBBES Laboratory, Genetics and Immune-Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Nathalie Meuleman
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Philippe Lewalle
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | - Mohammad Fayyad-Kazan
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon.,Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon
| | - Mehdi Najar
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Brussels, Belgium.,Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
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12
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Merimi M, Lewalle P, Meuleman N, Agha DM, El-Kehdy H, Bouhtit F, Ayoub S, Burny A, Fahmi H, Lagneaux L, Najar M. Mesenchymal Stem/Stromal Cell Therapeutic Features: The Bridge between the Bench and the Clinic. J Clin Med 2021; 10:jcm10050905. [PMID: 33668878 PMCID: PMC7956428 DOI: 10.3390/jcm10050905] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 02/20/2021] [Indexed: 12/12/2022] Open
Affiliation(s)
- Makram Merimi
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles, 1000 Bruxelles, Belgium; (M.M.); (P.L.); (N.M.); (D.M.A.); (F.B.)
- Genetics and Immune Cell Therapy Unit, LBBES Laboratory, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Philippe Lewalle
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles, 1000 Bruxelles, Belgium; (M.M.); (P.L.); (N.M.); (D.M.A.); (F.B.)
| | - Nathalie Meuleman
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles, 1000 Bruxelles, Belgium; (M.M.); (P.L.); (N.M.); (D.M.A.); (F.B.)
| | - Douâa Moussa Agha
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles, 1000 Bruxelles, Belgium; (M.M.); (P.L.); (N.M.); (D.M.A.); (F.B.)
| | - Hoda El-Kehdy
- Laboratory of Pediatric Hepatology and Cell Therapy, UCLouvain, Institut de Recherche Expérimentale et Clinique, 1200 Brussels, Belgium;
| | - Fatima Bouhtit
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles, 1000 Bruxelles, Belgium; (M.M.); (P.L.); (N.M.); (D.M.A.); (F.B.)
- Genetics and Immune Cell Therapy Unit, LBBES Laboratory, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Sara Ayoub
- Department of Prosthodontics, Faculty of Dental Medicine, Lebanese University, Hadath, 10999 Beirut, Lebanon;
| | - Arsène Burny
- Laboratory of Molecular and Cellular Biology, Faculté Universitaire des Sciences Agronomiques de Gembloux, 5030 Gembloux, Belgium;
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center, Montreal, QC H2X 0A9, Canada;
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles, 1070 Brussels, Belgium;
| | - Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center, Montreal, QC H2X 0A9, Canada;
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles, 1070 Brussels, Belgium;
- Correspondence:
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Najar M, Martel-Pelletier J, Pelletier JP, Fahmi H. Novel insights for improving the therapeutic safety and efficiency of mesenchymal stromal cells. World J Stem Cells 2020; 12:1474-1491. [PMID: 33505596 PMCID: PMC7789128 DOI: 10.4252/wjsc.v12.i12.1474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/13/2020] [Accepted: 09/25/2020] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stromal cells (MSCs) have attracted great interest in the field of regenerative medicine. They can home to damaged tissue, where they can exert pro-regenerative and anti-inflammatory properties. These therapeutic effects involve the secretion of growth factors, cytokines, and chemokines. Moreover, the functions of MSCs could be mediated by extracellular vesicles (EVs) that shuttle various signaling messengers. Although preclinical studies and clinical trials have demonstrated promising therapeutic results, the efficiency and the safety of MSCs need to be improved. After transplantation, MSCs face harsh environmental conditions, which likely dampen their therapeutic efficacy. A possible strategy aiming to improve the survival and therapeutic functions of MSCs needs to be developed. The preconditioning of MSCs ex vivo would strength their capacities by preparing them to survive and to better function in this hostile environment. In this review, we will discuss several preconditioning approaches that may improve the therapeutic capacity of MSCs. As stated above, EVs can recapitulate the beneficial effects of MSCs and may help avoid many risks associated with cell transplantation. As a result, this novel type of cell-free therapy may be safer and more efficient than the whole cell product. We will, therefore, also discuss current knowledge regarding the therapeutic properties of MSC-derived EVs.
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Affiliation(s)
- Mehdi Najar
- Department of Medicine, University of Montreal, Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada.
| | - Johanne Martel-Pelletier
- Department of Medicine, University of Montreal, Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Jean Pierre Pelletier
- Department of Medicine, University of Montreal, Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Hassan Fahmi
- Department of Medicine, University of Montreal, Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada
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Ouhaddi Y, Najar M, Paré F, Lussier B, Urade Y, Benderdour M, Pelletier JP, Martel-Pelletier J, Fahmi H. L-PGDS deficiency accelerated the development of naturally occurring age-related osteoarthritis. Aging (Albany NY) 2020; 12:24778-24797. [PMID: 33361529 PMCID: PMC7803483 DOI: 10.18632/aging.202367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/03/2020] [Indexed: 12/14/2022]
Abstract
Osteoarthritis (OA) is the most common musculoskeletal disorder among the elderly. It is characterized by progressive cartilage degradation, synovial inflammation, subchondral bone remodeling and pain. Lipocalin prostaglandin D synthase (L-PGDS) is responsible for the biosynthesis of PGD2, which has been implicated in the regulation of inflammation and cartilage biology. This study aimed to evaluate the effect of L-PGDS deficiency on the development of naturally occurring age-related OA in mice. OA-like structural changes were assessed by histology, immunohistochemistry, and micro–computed tomography. Pain related behaviours were assessed using the von Frey and the open-field assays. L-PGDS deletion promoted cartilage degradation during aging, which was associated with enhanced expression of extracellular matrix degrading enzymes, matrix metalloprotease 13 (MMP-13) and a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS-5), and their breakdown products, C1,2C, VDIPEN and NITEG. Moreover, L-PGDS deletion enhanced subchondral bone changes, but had no effect on its angiogenesis. Additionally, L-PGDS deletion increased mechanical sensitivity and reduced spontaneous locomotor activity. Finally, we showed that the expression of L-PGDS was elevated in aged mice. Together, these findings indicate an important role for L-PGDS in naturally occurring age-related OA. They also suggest that L-PGDS may constitute a new efficient therapeutic target in OA.
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Affiliation(s)
- Yassine Ouhaddi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada
| | - Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada
| | - Frédéric Paré
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada
| | - Bertrand Lussier
- Faculty of Veterinary Medicine, Clinical Science, University of Montreal, Saint-Hyacinthe, QC, J2S 2M2, Canada
| | - Yoshihiro Urade
- Isotope Science Center, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Mohamed Benderdour
- Research Centre, Sacré-Coeur Hospital, University of Montreal, Montreal, QC H4J 1C5, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada
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15
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Najar M, Martel-Pelletier J, Pelletier JP, Fahmi H. Mesenchymal Stromal Cell Immunology for Efficient and Safe Treatment of Osteoarthritis. Front Cell Dev Biol 2020; 8:567813. [PMID: 33072752 PMCID: PMC7536322 DOI: 10.3389/fcell.2020.567813] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 08/24/2020] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cell (MSC) therapy represents a promising approach for the treatment of osteoarthritis (OA). MSCs can be readily isolated from multiple sources and expanded ex vivo for possible clinical application. They possess a unique immunological profile and regulatory machinery that underline their therapeutic effects. They also have the capacity to sense the changes within the tissue environment to display the adequate response. Indeed, there is a close interaction between MSCs and the host cells. Accordingly, MSCs demonstrate encouraging results for a variety of diseases including OA. However, their effectiveness needs to be improved. In this review, we selected to discuss the importance of the immunological features of MSCs, including the type of transplantation and the immune and blood compatibility. It is important to consider MSC immune evasive rather than immune privileged. We also highlighted some of the actions/mechanisms that are displayed during tissue healing including the response of MSCs to injury signals, their interaction with the immune system, and the impact of their lifespan. Finally, we briefly summarized the results of clinical studies reporting on the application of MSCs for the treatment of OA. The research field of MSCs is inspiring and innovative but requires more knowledge about the immunobiological properties of these cells. A better understanding of these features will be key for developing a safe and efficient medicinal product for clinical use in OA.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center, Department of Medicine, University of Montreal, Montreal, QC, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center, Department of Medicine, University of Montreal, Montreal, QC, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center, Department of Medicine, University of Montreal, Montreal, QC, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center, Department of Medicine, University of Montreal, Montreal, QC, Canada
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Najar M, Ouhaddi Y, Paré F, Lussier B, Urade Y, Kapoor M, Pelletier JP, Martel-Pelletier J, Benderdour M, Fahmi H. Role of Lipocalin-Type Prostaglandin D Synthase in Experimental Osteoarthritis. Arthritis Rheumatol 2020; 72:1524-1533. [PMID: 32336048 DOI: 10.1002/art.41297] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 04/21/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Lipocalin-type prostaglandin D synthase (L-PGDS) catalyzes the formation of prostaglandin D2 (PGD2 ), which has important roles in inflammation and cartilage metabolism. We undertook this study to investigate the role of L-PGDS in the pathogenesis of osteoarthritis (OA) using an experimental mouse model. METHODS Experimental OA was induced in wild-type (WT) and L-PGDS-deficient (L-PGDS-/- ) mice (n = 10 per genotype) by destabilization of the medial meniscus (DMM). Cartilage degradation was evaluated by histology. The expression of matrix metalloproteinase 13 (MMP-13) and ADAMTS-5 was assessed by immunohistochemistry. Bone changes were determined by micro-computed tomography. Cartilage explants from L-PGDS-/- and WT mice (n = 6 per genotype) were treated with interleukin-1α (IL-1α) ex vivo in order to evaluate proteoglycan degradation. Moreover, the effect of intraarticular injection of a recombinant adeno-associated virus type 2/5 (rAAV2/5) encoding L-PGDS on OA progression was evaluated in WT mice (n = 9 per group). RESULTS Compared to WT mice, L-PGDS-/- mice had exacerbated cartilage degradation and enhanced expression of MMP-13 and ADAMTS-5 (P < 0.05). Furthermore, L-PGDS-/- mice displayed increased synovitis and subchondral bone changes (P < 0.05). Cartilage explants from L-PGDS-/- mice showed enhanced proteoglycan degradation following treatment with IL-1α (P < 0.05). Intraarticular injection of rAAV2/5 encoding L-PGDS attenuated the severity of DMM-induced OA-like changes in WT mice (P < 0.05). The L-PGDS level was increased in OA tissues of WT mice (P < 0.05). CONCLUSION Collectively, these findings suggest a protective role of L-PGDS in OA, and therefore enhancing levels of L-PGDS may constitute a promising therapeutic strategy.
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Affiliation(s)
- Mehdi Najar
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | - Yassine Ouhaddi
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | - Frédéric Paré
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | | | | | - Mohit Kapoor
- The Toronto Western Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Jean-Pierre Pelletier
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | - Johanne Martel-Pelletier
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | | | - Hassan Fahmi
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
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18
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Merimi M, Lagneaux L, Agha DM, Lewalle P, Meuleman N, Burny A, Fahmi H, Najar M. Mesenchymal Stem/Stromal Cells in Immunity and Disease: A Better Understanding for an Improved Use. J Clin Med 2020; 9:jcm9051516. [PMID: 32443461 PMCID: PMC7291272 DOI: 10.3390/jcm9051516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023] Open
Abstract
In this Special Issue, directed and supervised by Dr. Mehdi Najar, a collection of basic research articles and reviews, on the state of the art of Mesenchymal Stem/Stromal Cells (MSCs) immune biology, is presented. Among the major goals of this Special Issue is the presentation of an update about the immunomodulatory properties of MSCs and their capacity to respond to tissue microenvironment changes. MSCs hold great promise in the field of immunotherapy and regenerative medicine. Accordingly, a better understanding of MSC immune biology will improve their therapeutic value and use.
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Affiliation(s)
- Makram Merimi
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1000 Bruxelles, Belgium; (M.M.); (D.M.A.); (P.L.); (N.M.)
- Laboratory of Physiology, Genetics and Ethnopharmacology, Faculty of Sciences, University Mohammed Premier, 60000 Oujda, Morocco
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium;
| | - Douâa Moussa Agha
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1000 Bruxelles, Belgium; (M.M.); (D.M.A.); (P.L.); (N.M.)
| | - Philippe Lewalle
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1000 Bruxelles, Belgium; (M.M.); (D.M.A.); (P.L.); (N.M.)
| | - Nathalie Meuleman
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 1000 Bruxelles, Belgium; (M.M.); (D.M.A.); (P.L.); (N.M.)
| | - Arsène Burny
- Laboratory of Molecular and Cellular Biology, Faculté Universitaire des Sciences Agronomiques de Gembloux (FUSAGx), 5030 Gembloux, Belgium;
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada;
| | - Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC H2X 0A9, Canada;
- Correspondence:
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Buyl K, Merimi M, Rodrigues RM, Moussa Agha D, Melki R, Vanhaecke T, Bron D, Lewalle P, Meuleman N, Fahmi H, Rogiers V, Lagneaux L, De Kock J, Najar M. The Impact of Cell-Expansion and Inflammation on The Immune-Biology of Human Adipose Tissue-Derived Mesenchymal Stromal Cells. J Clin Med 2020; 9:jcm9030696. [PMID: 32143473 PMCID: PMC7141238 DOI: 10.3390/jcm9030696] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 01/30/2020] [Accepted: 02/21/2020] [Indexed: 12/18/2022] Open
Abstract
Background: As a cell-based therapeutic, AT-MSCs need to create an immuno-reparative environment appropriate for tissue repair. In the presence of injury, MSCs may have to proliferate and face inflammation. Clinical application requires repeated administrations of a high number of cells with a well-established immune profile. Methods: We have established an immuno-comparative screening by determining the expression of 28 molecules implicated in immune regulation. This screening was performed during cell-expansion and inflammatory priming of AT-MSCs. Results: Our study confirms that AT-MSCs are highly expandable and sensitive to inflammation. Both conditions have substantially modulated the expression of a panel of immunological marker. Specifically, CD34 expression was substantially decreased upon cell-passaging. HLA-ABC, CD40 CD54, CD106, CD274 and CD112 were significantly increased by inflammation. In vitro cell-expansion also significantly altered the expression profile of HLA-DR, CD40, CD62L, CD106, CD166, HLA-G, CD200, HO-1, CD155 and ULBP-3. Conclusion: This study points out the response and characteristics of MSCs following expansion and inflammatory priming. It will strength our knowledge about the molecular mechanisms that may improve or hamper the therapeutic potential of MSCs. These immunological changes need to be further characterized to guarantee a safe cellular product with consistent quality and high therapeutic efficacy.
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Affiliation(s)
- Karolien Buyl
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Makram Merimi
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 121 Boulevard de Waterloo, 1000 Bruxelles, Belgium
- Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
- Correspondence:
| | - Robim M. Rodrigues
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Douâa Moussa Agha
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 121 Boulevard de Waterloo, 1000 Bruxelles, Belgium
| | - Rahma Melki
- Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
| | - Tamara Vanhaecke
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Dominique Bron
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 121 Boulevard de Waterloo, 1000 Bruxelles, Belgium
| | - Philippe Lewalle
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 121 Boulevard de Waterloo, 1000 Bruxelles, Belgium
| | - Nathalie Meuleman
- Laboratory of Experimental Hematology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 121 Boulevard de Waterloo, 1000 Bruxelles, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), 900 Saint-Denis, R11.424, Montreal, QC H2X 0A9, Canada
| | - Vera Rogiers
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), 808 Route de Lennik, 1070 Brussels, Belgium
| | - Joery De Kock
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Mehdi Najar
- Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), 900 Saint-Denis, R11.424, Montreal, QC H2X 0A9, Canada
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Paré F, Tardif G, Fahmi H, Ouhaddi Y, Pelletier JP, Martel-Pelletier J. In vivo protective effect of adipsin-deficiency on spontaneous knee osteoarthritis in aging mice. Aging (Albany NY) 2020; 12:2880-2896. [PMID: 32012117 PMCID: PMC7041762 DOI: 10.18632/aging.102784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 01/18/2020] [Indexed: 12/12/2022]
Abstract
The adipokine adipsin is an emerging mediator of human osteoarthritis (OA) progression. Here, we investigated its in vivo role in the development of spontaneous OA in aging mice. We compared articular knee joint morphology, histology in knee cartilage, synovial membrane, subchondral bone, meniscus, and anterior cruciate ligament (ACL); and chondrogenesis in the ACL from adipsin-deficient (Df-/-) and wild-type (Df+/+) 20-week- and 20-month-old mice. Serum levels of a panel of adipokines, inflammatory factors, and metalloproteases known to be implicated in OA were investigated. Data first revealed that the early manifestation of OA appeared in the ACL of 20-week-old mice, progressing to severe alterations in the 20 month-old wild-type mice. Further results demonstrated that adipsin-deficiency protected the articular tissues from spontaneous OA progression and triggered significantly higher serum levels of the adipokines adiponectin and FGF-21 while lowering levels of the inflammatory factor interleukin 6 (IL-6) in both young and old mice. This work further underlines the clinical relevance of adipsin as a novel therapeutic approach of human OA. Moreover, this study shows the potential beneficial effect of the adipokine FGF-21 against OA, and provides support for this factor to be a new biomarker and/or target of primary OA therapeutic avenues.
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Affiliation(s)
- Frédéric Paré
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
| | - Ginette Tardif
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
| | - Yassine Ouhaddi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
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Fahmi H, Alawami M, Scott T. 544 Role of Medical Tutor Specialist With Cardiology Background in the Assessment and Diagnostic Unit; The North Shore Hospital Experience. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fahmi H, Alawami M, Scott T. A072 The Role of Medical Tutor Specialist with Cardiology Background in the Assessment and Diagnostic unit; The North Shore Hospital Experience. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.05.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fahmi H, Laurie A, Shepherd P, Bhoothpur C, Legget M, Doughty R, Holley A, Larsen P, Gladding P. A012 Clinical Applications of Polygenic Risk Scores in Coronary Artery Disease and Familial Hypercholesterolaemia. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Najar M, Bouhtit F, Melki R, Afif H, Hamal A, Fahmi H, Merimi M, Lagneaux L. Mesenchymal Stromal Cell-Based Therapy: New Perspectives and Challenges. J Clin Med 2019; 8:jcm8050626. [PMID: 31071990 PMCID: PMC6572531 DOI: 10.3390/jcm8050626] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/05/2019] [Indexed: 12/11/2022] Open
Abstract
Stem cells have been the focus of intense research opening up new possibilities for the treatment of various diseases. Mesenchymal stromal cells (MSCs) are multipotent cells with relevant immunomodulatory properties and are thus considered as a promising new strategy for immune disease management. To enhance their efficiency, several issues related to both MSC biology and functions are needed to be identified and, most importantly, well clarified. The sources from which MSCs are isolated are diverse and might affect their properties. Both clinicians and scientists need to handle a phenotypic-characterized population of MSCs, particularly regarding their immunological profile. Moreover, it is now recognized that the tissue-reparative effects of MSCs are based on their immunomodulatory functions that are activated following a priming/licensing step. Thus, finding the best ways to pre-conditionate MSCs before their injection will strengthen their activity potential. Finally, soluble elements derived from MSC-secretome, including extracellular vesicles (EVs), have been proposed as a cell-free alternative tool for therapeutic medicine. Collectively, these features have to be considered and developed to ensure the efficiency and safety of MSC-based therapy. By participating to this Special Issue “Mesenchymal Stem/Stromal Cells in Immunity and Disease”, your valuable contribution will certainly enrich the content and discussion related to the thematic of MSCs.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada.
- Laboratory of Physiology, Genetics and Ethnopharmacology, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco.
| | - Fatima Bouhtit
- Laboratory of Physiology, Genetics and Ethnopharmacology, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco.
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Bruxelles, Belgium.
| | - Rahma Melki
- Laboratory of Physiology, Genetics and Ethnopharmacology, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco.
| | - Hassan Afif
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada.
| | - Abdellah Hamal
- Laboratory of Physiology, Genetics and Ethnopharmacology, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco.
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, University of Montreal, Montreal, QC H2X 0A9, Canada.
| | - Makram Merimi
- Laboratory of Physiology, Genetics and Ethnopharmacology, Faculty of Sciences, University Mohammed Premier, Oujda 60000, Morocco.
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, 1000 Bruxelles, Belgium.
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles, 1070 Bruxelles, Belgium.
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Najar M, Lombard CA, Fayyad-Kazan H, Faour WH, Merimi M, Sokal EM, Lagneaux L, Fahmi H. Th17 immune response to adipose tissue-derived mesenchymal stromal cells. J Cell Physiol 2019; 234:21145-21152. [PMID: 31041809 DOI: 10.1002/jcp.28717] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/09/2019] [Accepted: 04/10/2019] [Indexed: 12/11/2022]
Abstract
Adipose tissue-derived mesenchymal stromal cells (ASCs) hold the promise of achieving successful immunotherapeutic results due to their ability to regulate different T-cell fate. ASCs also show significant adaptability to environmental stresses by modulating their immunologic profile. Cell-based therapy for inflammatory diseases requires a detailed understanding of the molecular relation between ASCs and Th17 lymphocytes taking into account the influence of inflammation and cell ratio on such interaction. Accordingly, a dose-dependent increase in Th17 generation was only observed in high MSC:T-cell ratio with no significant impact of inflammatory priming. IL-23 receptor (IL-23R) expression by T cells was not modulated by ASCs when compared to levels in activated T cells, while ROR-γt expression was significantly increased reaching a maximum in high (1:5) unprimed ASC:T-cell ratio. Finally, multiplex immunoassay showed substantial changes in the secretory profile of 15 cytokines involved in the Th17 immune response (IL-1β, IL-4, IL-6, IL-10, IL-17A, IL-17F, IL-22, IL-21, IL-23, IL-25, IL-31, IL-33, IFN-γ, sCD40, and TNF-α), which was modulated by both cell ratio and inflammatory priming. These findings suggest that Th17 lymphocyte pathway is significantly modulated by ASCs that may lead to immunological changes. Therefore, future ASC-based immunotherapy should take into account the complex and detailed molecular interactions that depend on several factors including inflammatory priming and cell ratio.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, Montreal, Quebec, Canada.,Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Catherine A Lombard
- Institut de Recherche Expérimentale and Clinique (IREC), Laboratory of Pediatric Hepatology and Cell Therapy, Université Catholique de Louvain, Brussels, Belgium
| | - Hussein Fayyad-Kazan
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Lebanese University, Hadath, Lebanon
| | - Wissam H Faour
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Makram Merimi
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco.,Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, Bruxelles, Belgium
| | - Etienne M Sokal
- Institut de Recherche Expérimentale and Clinique (IREC), Laboratory of Pediatric Hepatology and Cell Therapy, Université Catholique de Louvain, Brussels, Belgium
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Brussels, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), and Department of Medicine, Montreal, Quebec, Canada
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Benabdoun HA, Kulbay M, Rondon EP, Vallières F, Shi Q, Fernandes J, Fahmi H, Benderdour M. In vitro and in vivo assessment of the proresolutive and antiresorptive actions of resolvin D1: relevance to arthritis. Arthritis Res Ther 2019; 21:72. [PMID: 30867044 PMCID: PMC6416871 DOI: 10.1186/s13075-019-1852-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 02/20/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Resolvin D1 (RvD1), an important member of resolvins, exerts a wide spectrum of biological effects, including resolution of inflammation, tissue repair, and preservation of cell viability. The aim of the present study is to investigate the anti-arthritic potential and clarify the bone protective actions of RvD1 in vitro and in vivo. METHODS RAW264.7 cells were treated with 50 ng/ml LPS for 72 h in the presence or absence of RvD1 (0-500 nM). Primary human monocytes were treated with M-CSF + RANKL for 14 days ± RvD1 (0-500 nM) with or without siRNA against RvD1 receptor FPR2. Expressions of inflammatory mediators, degrading enzymes, osteoclasts (OC) formation, and bone resorption were analyzed. The therapeutic effect of RvD1 (0-1000 ng) was carried out in murine collagen antibody-induced arthritis. Arthritis scoring, joint histology, and inflammatory and bone turnover markers were measured. RESULTS RvD1 is not toxic and inhibits OC differentiation and activation. It decreases bone resorption, as assessed by the inhibition of TRAP and cathepsin K expression, hydroxyapatite matrix resorption, and bone loss. In addition, RvD1 reduces TNF-α, IL-1β, IFN-γ, PGE2, and RANK and concurrently enhances IL-10 in OC. Moreover, in arthritic mice, RvD1 alleviates clinical score, paw inflammation, and bone and joint destructions. Besides, RvD1 reduces inflammatory mediators and markedly decreases serum markers of bone and cartilage turnover. CONCLUSION Our results provide additional evidence that RvD1 plays a key role in preventing bone resorption and other pathophysiological changes associated with arthritis. The study highlights the clinical relevance of RvD1 as a potential compound for the treatment of inflammatory arthritis and related bone disorders.
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Affiliation(s)
- Houda Abir Benabdoun
- Department of Pharmacology, Université de Montréal, Montreal,, QC, Canada.,Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Merve Kulbay
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Elsa-Patricia Rondon
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Francis Vallières
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Qin Shi
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Julio Fernandes
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada.,Department of Surgery, Université de Montréal, Montreal, QC, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada.,Department of Medicine, University of Montreal, Montreal, QC, Canada
| | - Mohamed Benderdour
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada. .,Department of Surgery, Université de Montréal, Montreal, QC, Canada.
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Najar M, Fayyad-Kazan H, Faour WH, Merimi M, Sokal EM, Lombard CA, Fahmi H. Immunological modulation following bone marrow-derived mesenchymal stromal cells and Th17 lymphocyte co-cultures. Inflamm Res 2018; 68:203-213. [PMID: 30506263 DOI: 10.1007/s00011-018-1205-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 11/16/2018] [Accepted: 11/23/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE AND DESIGN The objective of the study is to uncover the influence of human bone marrow-derived mesenchymal stem cells (BM-MSCs) on the generation of Th17 lymphocytes in co-cultures of both BM-MSCs and T cells. MATERIALS AND METHODS BM-MSCs, characterized according to the international society for cellular therapy (ISCT) criteria, were co-cultured with T cells isolated from peripheral blood. The expression levels of IL-17 receptor, RORγt and IL-23 receptor were evaluated using flow cytometry. The levels of cytokines involved in Th17 immunomodulation were measured using multiplex assay. TREATMENT Inflammatory primed and non-primed BM-MSCs were co-cultured with either activated or non-activated T cells either at (1/80) and (1/5) ratio respectively. RESULTS MSC/T-cell ratio and inflammation significantly influenced the effect of BM-MSCs on the generation of Th17 lymphocytes. Cocultures of either primed or non-primed BM-MSCs with activated T cells significantly induced IL-17A-expressing lymphocytes. Interestingly, the expression of the transcription factor RORγt was significantly increased when compared to levels in activated T cells. Finally, both cell ratio and priming of BM-MSCs with cytokines substantially influenced the cytokine profile of BM-MSCs and T cells. CONCLUSION Our findings suggest that BM-MSCs significantly modulate the Th17 lymphocyte pathway in a complex manner.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), 900 rue Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada
| | - Hussein Fayyad-Kazan
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Lebanese University, Hadath, Lebanon
| | - Wissam H Faour
- Pharmacology, Gilbert and Rose-Mary Chagoury School of Medicine, Lebanese American University, P.O. Box 36, Byblos, Lebanon.
| | - Makram Merimi
- Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Etienne M Sokal
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale and Clinique (IREC), Université Catholique de Louvain, 1200, Brussels, Belgium
| | - Catherine A Lombard
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale and Clinique (IREC), Université Catholique de Louvain, 1200, Brussels, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Department of Medicine, University of Montreal Hospital Research Center (CRCHUM), 900 rue Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada
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Najar M, Ouhaddi Y, Bouhtit F, Melki R, Afif H, Boukhatem N, Merimi M, Fahmi H. Empowering the immune fate of bone marrow mesenchymal stromal cells: gene and protein changes. Inflamm Res 2018; 68:167-176. [PMID: 30426152 DOI: 10.1007/s00011-018-1198-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 10/23/2018] [Accepted: 11/07/2018] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE AND DESIGN Bone marrow mesenchymal stromal cells (BM-MSCs) are referred as a promising immunotherapeutic cell product. New approaches using empowered MSCs should be developed as for the treatment or prevention of different immunological diseases. Such preconditioning by new licensing stimuli will empower the immune fate of BM-MSCs and, therefore, promote a better and more efficient biological. Here, our main goal was to establish the immunological profile of BM-MSCs following inflammatory priming and in particular their capacity to adjust their immune-related proteome and transcriptome. MATERIAL AND METHODS To run this study, we have used BM-MSC cell cultures, a pro-inflammatory cytokine cocktail priming, flow cytometry analysis, qPCR and ELISA techniques. RESULTS Different expression levels of several immunological mediators such as COX-1, COX-2, LIF, HGF, Gal-1, HO-1, IL-11, IL-8, IL-6 and TGF-β were constitutively observed in BM-MSCs. Inflammation priming substantially but differentially modulated the gene and protein expression profiles of these mediators. Thus, expressions of COX-2, LIF, HGF, IL-11, IL-8 and IL-6 were highly increased/induced and those of COX-1, Gal-1, and TGF-β were reduced. CONCLUSIONS Collectively, we demonstrated that BM-MSCs are endowed with a specific and modular regulatory machinery which is potentially involved in immunomodulation. Moreover, BM-MSCs are highly sensitive to inflammation and respond to such signal by properly adjusting their gene and protein expression of regulatory factors. Using such preconditioning may empower the immune fate of MSCs and, therefore, enhance their value for cell-based immunotherapy.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada.
| | - Yassine Ouhaddi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada
| | - Fatima Bouhtit
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Rahma Melki
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Hassan Afif
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada
| | - Noureddine Boukhatem
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Makram Merimi
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco.,Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada.
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Valverde-Franco G, Tardif G, Mineau F, Paré F, Lussier B, Fahmi H, Pelletier JP, Martel-Pelletier J. High in vivo levels of adipsin lead to increased knee tissue degradation in osteoarthritis: data from humans and animal models. Rheumatology (Oxford) 2018; 57:1851-1860. [PMID: 29982662 DOI: 10.1093/rheumatology/key181] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Indexed: 01/02/2023] Open
Abstract
Objective This study explored the role of the adipokine adipsin in OA. Methods Control and OA articular tissues, cells and serum were obtained from human individuals. Serum adipsin levels of human OA individuals were compared with cartilage volume loss as assessed by MRI at 48 months. Human adipsin expression was determined by PCR, its production in tissues by immunohistochemistry, and in SF and serum by a specific assay. OA was surgically induced in wild-type (Df+/+) and adipsin-deficient (Df-/-) mice, and synovial membrane and cartilage processed for histology and immunohistochemistry. Results Adipsin levels were significantly increased in human OA serum, SF, synovial membrane and cartilage compared with controls, but the expression was similar in chondrocytes, synoviocytes and osteoblasts. Multivariate analysis demonstrated that human serum adipsin levels were significantly associated (P = 0.045) with cartilage volume loss in the lateral compartment of the knee. Destabilization of the medial meniscus-Df-/- mice showed a preservation of the OA synovial membrane and cartilage lesions (P ⩽ 0.026), the latter corroborated by the decreased production of cartilage degradation products and proteases (P ⩽ 0.047). The adipsin effect is likely due to a deficient alternative complement pathway (P ⩽ 0.036). Conclusion In human OA, higher serum adipsin levels were associated with greater cartilage volume loss in the lateral compartment, and adipsin deficiency led to a preservation of knee structure. Importantly, we documented an association between adipsin and OA synovial membrane and cartilage degeneration through the activation of the complement pathway. This study highlights the clinical relevance of adipsin as a valuable biomarker and potential therapeutic target for OA.
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Affiliation(s)
- Gladys Valverde-Franco
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada
| | - Ginette Tardif
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada
| | - François Mineau
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada
| | - Frédéric Paré
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada
| | - Bertrand Lussier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada.,Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, Quebec, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Canada
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Farrán A, Valverde-Franco G, Tío L, Lussier B, Fahmi H, Pelletier JP, Bishop PN, Monfort J, Martel-Pelletier J. In vivo effect of opticin deficiency in cartilage in a surgically induced mouse model of osteoarthritis. Sci Rep 2018; 8:457. [PMID: 29323130 PMCID: PMC5765138 DOI: 10.1038/s41598-017-18047-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 11/30/2017] [Indexed: 11/18/2022] Open
Abstract
The SLRP opticin (OPTC) has been demonstrated to be produced and degraded in osteoarthritic (OA) human cartilage. Here, we investigated the in vivo effect of OPTC deficiency in OA cartilage. OA was induced in 10-week-old Optc−/− and Optc+/+ mice. Ten weeks post-surgery, cartilage was processed for histology and immunohistochemistry. SLRP expression was determined in non-operated mouse cartilage. OA Optc−/− demonstrated significant protection against cartilage degradation. Data revealed that in non-operated Optc−/− cartilage, expression of SLRPs lumican and epiphycan was up-regulated at day 3 and in 10-week-olds (p ≤ 0.039), and fibromodulin down-regulated in 10-week-olds (p = 0.001). Immunohistochemistry of OA mice showed a similar pattern. In OA Optc−/− cartilage, markers of degradation and complement factors were all down-regulated (p ≤ 0.038). In OA Optc−/− cartilage, collagen fibers were thinner and better organized (p = 0.038) than in OA Optc+/+ cartilage. The protective effect of OPTC deficiency during OA results from an overexpression of lumican and epiphycan, known to bind and protect collagen fibers, and a decrease in fibromodulin, contributing to a reduction in the complement activation/inflammatory process. This work suggests that the evaluation of the composition of the different SLRPs in OA cartilage could be applied as a new tool for OA prognosis classification.
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Affiliation(s)
- Aina Farrán
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada.,Inflammation and Cartilage Cellular Research Group, IMIM (Hospital del Mar Medical Research Institute) Rheumatology Department, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain
| | - Gladys Valverde-Franco
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Laura Tío
- Inflammation and Cartilage Cellular Research Group, IMIM (Hospital del Mar Medical Research Institute) Rheumatology Department, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain
| | - Bertrand Lussier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada.,Faculty of Veterinary Medicine, Clinical Sciences, University of Montreal, Saint-Hyacinthe, Quebec, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Paul N Bishop
- Manchester Royal Eye Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom.,School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Jordi Monfort
- Inflammation and Cartilage Cellular Research Group, IMIM (Hospital del Mar Medical Research Institute) Rheumatology Department, Parc de Salut Mar, Hospital del Mar, Barcelona, Spain.,Rheumatology Department, Hospital del Mar, Barcelona, Spain
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada.
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Fahmi H, Kneale B, Goodson J, Xu Y. Management of Acute Coronary Syndrome (ACS) in the Elderly. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.05.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Habouri L, El Mansouri FE, Ouhaddi Y, Lussier B, Pelletier JP, Martel-Pelletier J, Benderdour M, Fahmi H. Deletion of 12/15-lipoxygenase accelerates the development of aging-associated and instability-induced osteoarthritis. Osteoarthritis Cartilage 2017; 25:1719-1728. [PMID: 28694081 DOI: 10.1016/j.joca.2017.07.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 06/23/2017] [Accepted: 07/01/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE 12/15-Lipoxygenase (12/15-LOX) catalyzes the generation of various anti-inflammatory lipid mediators, and has been implicated in several inflammatory and degenerative diseases. However, there is currently no evidence that 12/15-LOX has a role in osteoarthritis (OA). The aim of this study was to investigate the role of 12/15-LOX in the pathogenesis of OA. METHODS The development of aging-associated and destabilization of the medial meniscus (DMM)-induced OA were compared in 12/15-LOX-deficient (12/15-LOX-/-) and wild-type (WT) mice. The extent of cartilage damage was evaluated by histology. The expression of OA markers was evaluated by immunohistochemistry and RT-PCR. Cartilage explants were stimulated with IL-1α in the absence or presence of the 12/15-LOX metabolites, 15-hydroxyeicosatetraenoic acids (15-HETE), 13-hydroxyoctadecadienoic acid (13-HODE) or lipoxin A4 (LXA4), and the levels of matrix metalloproteinases-13 (MMP-13), Nitric oxide (NO) and prostaglandin E2 (PGE2) were determined. The effect of LXA4 on the progression of OA was evaluated in wild type (WT) mice. RESULTS The expression of 12/15-LOX in cartilage increased during the progression of DMM-induced OA and with aging in WT mice. Cartilage degeneration was more severe in 12/15-LOX-/- mice compared to WT mice in both models of OA, and this was associated with increased expression of MMP-13, a disintegrin and metalloproteinase with thrombospondin motifs, aggrecanases (ADAMTS5), inducible NO synthases (iNOS), and mPGES-1. Treatment of cartilage explants with 12/15-LOX metabolites, suppressed IL-1α-induced production of MMP-13, NO and PGE2, with LXA4 being the most potent. Intra-peritoneal injection of LXA4 reduced the severity of DMM-induced cartilage degradation. CONCLUSIONS These data suggest an important role of 12/15-LOX in the pathogenesis of OA. They also suggest that activation of this pathway may provide a novel strategy for prevention and treatment of OA.
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Affiliation(s)
- L Habouri
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC, Canada; Department of Medicine, University of Montreal, Montreal, QC, Canada.
| | - F E El Mansouri
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC, Canada; Department of Medicine, University of Montreal, Montreal, QC, Canada.
| | - Y Ouhaddi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC, Canada; Department of Medicine, University of Montreal, Montreal, QC, Canada.
| | - B Lussier
- Faculty of Veterinary Medicine, Clinical Science, University of Montreal, Saint-Hyacinthe, QC, Canada.
| | - J-P Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC, Canada; Department of Medicine, University of Montreal, Montreal, QC, Canada.
| | - J Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC, Canada; Department of Medicine, University of Montreal, Montreal, QC, Canada.
| | - M Benderdour
- Orthopedic Research Laboratory, Sacré-Coeur Hospital, University of Montreal, Montreal, QC, Canada.
| | - H Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC, Canada; Department of Medicine, University of Montreal, Montreal, QC, Canada.
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Ouhaddi Y, Nebbaki SS, Habouri L, Afif H, Lussier B, Kapoor M, Narumiya S, Pelletier JP, Martel-Pelletier J, Benderdour M, Fahmi H. Exacerbation of Aging-Associated and Instability-Induced Murine Osteoarthritis With Deletion of D Prostanoid Receptor 1, a Prostaglandin D 2 Receptor. Arthritis Rheumatol 2017; 69:1784-1795. [PMID: 28544596 DOI: 10.1002/art.40160] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 05/18/2017] [Indexed: 12/30/2022]
Abstract
OBJECTIVE D prostanoid receptor 1 (DP1), a receptor for prostaglandin D2 , plays important roles in inflammation and cartilage metabolism. However, its role in the pathogenesis of osteoarthritis (OA) remains unknown. This study was undertaken to explore the roles of DP1 in the development of OA in murine models and to evaluate the efficacy of a DP1 selective agonist in the treatment of OA. METHODS The development of aging-associated OA and destabilization of the medial meniscus (DMM)-induced OA was compared between DP1-deficient (DP1-/- ) and wild-type (WT) mice. The progression of OA was assessed by histology, immunohistochemistry, and micro-computed tomography. Cartilage explants from DP1-/- and WT mice were treated with interleukin-1α (IL-1α) ex vivo, to evaluate proteoglycan degradation. The effect of intraperitoneal administration of the DP1 selective agonist BW245C on OA progression was evaluated in WT mice. RESULTS Compared to WT mice, DP1-/- mice had exacerbated cartilage degradation in both models of OA, and this was associated with increased expression of matrix metalloproteinase 13 and ADAMTS-5. In addition, DP1-/- mice demonstrated enhanced subchondral bone changes. Cartilage explants from DP1-/- mice showed enhanced proteoglycan degradation following treatment with IL-1α. Intraperitoneal injection of BW245C attenuated the severity of DMM-induced cartilage degradation and bony changes in WT mice. CONCLUSION These findings indicate a critical role for DP1 signaling in OA pathogenesis. Modulation of the functions of DP1 may constitute a potential therapeutic target for the development of novel OA treatments.
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Affiliation(s)
- Yassine Ouhaddi
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | - Sarah-Salwa Nebbaki
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | - Lauris Habouri
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | - Hassan Afif
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | | | - Mohit Kapoor
- The Toronto Western Research Institute, University Health Network, Toronto, Ontario, Canada
| | | | - Jean-Pierre Pelletier
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | - Johanne Martel-Pelletier
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
| | | | - Hassan Fahmi
- University of Montreal Hospital Research Center and University of Montreal, Montreal, Quebec, Canada
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Abusarah J, Bentz M, Benabdoune H, Rondon PE, Shi Q, Fernandes JC, Fahmi H, Benderdour M. An overview of the role of lipid peroxidation-derived 4-hydroxynonenal in osteoarthritis. Inflamm Res 2017; 66:637-651. [PMID: 28447122 DOI: 10.1007/s00011-017-1044-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 04/03/2017] [Accepted: 04/05/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Over the years, many theories have been proposed and examined to better explain the etiology and development of osteoarthritis (OA). The characteristics of joint destruction are one of the most important aspects in disease progression. Therefore, investigating different factors and signaling pathways involved in the alteration of extracellular matrix (ECM) turnover, and the subsequent catabolic damage to cartilage holds chief importance in understanding OA development. Among these factors, reactive oxygen species (ROS) have been at the forefront of the physiological and pathophysiological OA investigation. FINDINGS In the last decades, research studies provided an enormous volume of data supporting the involvement of ROS in OA. Most interestingly, published data regarding the effect of exogenous antioxidant therapy in OA lack conclusive results from clinical trials to back up in vitro data. Accordingly, it is rational to suggest that there are other reactive species in OA that are not taken into account. Thus, our present review is focused on our current understanding of the involvement of lipid peroxidation-derived 4-hydroxynonenal (HNE) in OA. CONCLUSION Our findings, like those in the literature, illustrate the central role played by HNE in the regulation of a number of factors involved in joint homeostasis. HNE could thus be considered as an attractive therapeutic target in OA.
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Affiliation(s)
- Jamilah Abusarah
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Mireille Bentz
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Houda Benabdoune
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Patricia Elsa Rondon
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Qin Shi
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Julio C Fernandes
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Hassan Fahmi
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Mohamed Benderdour
- Orthopaedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, University of Montreal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada.
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Abusarah J, Benabdoune H, Shi Q, Lussier B, Martel-Pelletier J, Malo M, Fernandes JC, de Souza FP, Fahmi H, Benderdour M. Elucidating the Role of Protandim and 6-Gingerol in Protection Against Osteoarthritis. J Cell Biochem 2017; 118:1003-1013. [PMID: 27463229 DOI: 10.1002/jcb.25659] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/26/2016] [Indexed: 12/24/2022]
Abstract
Protandim and 6-gingerol, two potent nutraceuticals, have been shown to decrease free radicals production through enhancing endogenous antioxidant enzymes. In this study, we evaluated the effects of these products on the expression of different factors involved in osteoarthritis (OA) process. Human OA chondrocytes were treated with 1 ng/ml IL-1β in the presence or absence of protandim (0-10 μg/ml) or 6-gingerol (0-10 μM). OA was induced surgically in mice by destabilization of the medial meniscus (DMM). The animals were treated weekly with an intraarticular injection of 10 μl of vehicle or protandim (10 μg/ml) for 8 weeks. Sham-operated mice served as controls. In vitro, we demonstrated that protandim and 6-gingerol preserve cell viability and mitochondrial metabolism and prevented 4-hydroxynonenal (HNE)-induced cell mortality. They activated Nrf2 transcription factor, abolished IL-1β-induced NO, PGE2 , MMP-13, and HNE production as well as IL-β-induced GSTA4-4 down-regulation. Nrf2 overexpression reduced IL-1β-induced HNE and MMP-13 as well as IL-1β-induced GSTA4-4 down-regulation. Nrf2 knockdown following siRNA transfection abolished protandim protection against oxidative stress and catabolism. The activation of MAPK and NF-κB by IL-1β was not affected by 6-gingerol. In vivo, we observed that Nrf2 and GSTA4-4 expression was significantly lower in OA cartilage from humans and mice compared to normal controls. Interestingly, protandim administration reduced OA score in DMM mice. Altogether, our data indicate that protandim and 6-gingerol are essential in preserving cartilage and abolishing a number of factors known to be involved in OA pathogenesis. J. Cell. Biochem. 118: 1003-1013, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jamilah Abusarah
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, Université de Montréal, 5400 Gouin Blvd. West, Montreal, Quebec, Canada H4J 1C5
| | - Houda Benabdoune
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, Université de Montréal, 5400 Gouin Blvd. West, Montreal, Quebec, Canada H4J 1C5
| | - Qin Shi
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, Université de Montréal, 5400 Gouin Blvd. West, Montreal, Quebec, Canada H4J 1C5
| | - Bertrand Lussier
- Osteoarthritis Research Unit and Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM)-Hôpital Notre-Dame, Montreal, Quebec, Canada H2L 4M1
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit and Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM)-Hôpital Notre-Dame, Montreal, Quebec, Canada H2L 4M1
| | - Michel Malo
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, Université de Montréal, 5400 Gouin Blvd. West, Montreal, Quebec, Canada H4J 1C5
| | - Julio C Fernandes
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, Université de Montréal, 5400 Gouin Blvd. West, Montreal, Quebec, Canada H4J 1C5
| | - Fátima Pereira de Souza
- Universidade Estadual Paulista "Júlio de Mesquita Filho", (UNESP), Departamento de Física, Laboratório de Biologia Molecular, Centro Multiusuário de Inovação Biomolecular (CMIB), 15054-000, São José Do Rio Preto, SP, Brazil
| | - Hassan Fahmi
- Osteoarthritis Research Unit and Research Centre, Centre hospitalier de l'Université de Montréal (CRCHUM)-Hôpital Notre-Dame, Montreal, Quebec, Canada H2L 4M1
| | - Mohamed Benderdour
- Orthopedic Research Laboratory, Hôpital du Sacré-Coeur de Montréal and Department of Surgery, Université de Montréal, 5400 Gouin Blvd. West, Montreal, Quebec, Canada H4J 1C5
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Abstract
Osteoarthritis (OA) is the most common form of arthritis and a huge health and financial burden. The prevalence and incidence of OA are likely to rise due to increasing life expectancy. Although the link between aging and OA is well established, little is known about the mechanisms by which aging contributes to OA development. In recent years, progress has been made in understanding the molecular mechanisms of chondrocyte aging and senescence. Aging and senescent chondrocytes display a senescence-associated secretory phenotype (SASP) associated with increased secretion of pro-inflammatory mediators, extracellular matrix degrading enzymes and oxidative stress, all of which can contribute to the development and progression of OA. There is also evidence that autophagy, an essential homeostatic process, declines with aging and during OA. This review will focus on our current understanding of chondrocyte aging, senescence, and autophagy and their potential roles in the development and progression of OA. An understanding of these processes would be very useful in devising strategies to treat OA or to delay its development.
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Affiliation(s)
| | | | | | | | | | - Hassan Fahmi
- CRCHUM, 900 rue Saint-Denis, Suite R11.424, Montreal, QC, CANADA H2X 0A9.
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Li YH, Tardif G, Hum D, Kapoor M, Fahmi H, Pelletier JP, Martel-Pelletier J. The unfolded protein response genes in human osteoarthritic chondrocytes: PERK emerges as a potential therapeutic target. Arthritis Res Ther 2016; 18:172. [PMID: 27435272 PMCID: PMC4952234 DOI: 10.1186/s13075-016-1070-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/30/2016] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The unfolded protein response (UPR) is activated following an endoplasmic reticulum (ER) stress. The aim of this study was to investigate the global expression of UPR genes in human OA chondrocytes in induced (I)-UPR conditions, and to explore the regulation and role of the UPR genes in homeostatic (H)-UPR conditions in human normal and OA chondrocytes. METHODS Gene expression was determined by PCR array and qPCR. Protein production in cartilage was determined by immunohistochemistry, gene silencing by specific siRNAs, and gene regulation by treating chondrocytes with cytokines and growth factors associated with cartilage pathobiology. RESULTS Several UPR genes, among them ERN1, PERK, and CREB3L2 were downregulated in OA compared to normal chondrocytes at both the mRNA and protein levels, but the ER stress response triggered by thapsigargin or tunicamycin treatment was similar in normal and OA chondrocytes. The activation of ER stress sensors (phosphorylated PERK, cleavage of ATF6B, and the spliced mRNA forms of XBP1) was not significantly increased in OA chondrocytes/cartilage. PDGF-BB and IL-6 significantly downregulated the expression of ERN1, PERK, and CREB3L2, but not that of ATF6B. Silencing experiments done under conditions of no ER stress (physiological conditions) revealed that decreasing ERN1 expression led to decreased COL2a1, MMP-13, ADAMTS4 and ADAMTS5 expression, while decreasing CREB3L2 and ATF6B led to decreased ADAMTS5 and ADAMTS4 expression, respectively. Importantly, the downregulation of PERK expression increased COL1a1 and suppressed COL2a1 expression. CONCLUSIONS Although the level of ER stress is not significantly increased in OA chondrocytes, these cells respond strongly to an acute ER stress despite the decreased expression of ERN1, PERK, and CREB3L2. Emerging findings revealed for the first time that these genes play a role in cartilage biology in conditions where an acute ER stress response is not triggered and OA is not characterized by an overall basal activation of the ER stress response. Importantly, these findings identify PERK as a potential target for new OA treatment avenues.
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Affiliation(s)
- Ying-Hua Li
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Ginette Tardif
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, R11.412B, Montreal, QC, H2X 0A9, Canada
| | - David Hum
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Mohit Kapoor
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, R11.412B, Montreal, QC, H2X 0A9, Canada.,Division of Genetics and Development, Toronto Western Research Institute, University Health Network (UHN), Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, R11.412B, Montreal, QC, H2X 0A9, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), 900 Saint-Denis, R11.412B, Montreal, QC, H2X 0A9, Canada.
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Benabdoune H, Rondon EP, Shi Q, Fernandes J, Ranger P, Fahmi H, Benderdour M. The role of resolvin D1 in the regulation of inflammatory and catabolic mediators in osteoarthritis. Inflamm Res 2016; 65:635-45. [PMID: 27056390 DOI: 10.1007/s00011-016-0946-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/22/2016] [Accepted: 04/01/2016] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE AND DESIGN Resolvin D1 (RvD1), an omega-3 fatty acid derivative, has shown remarkable properties in resolving inflammation, promoting tissue repair and preserving tissue integrity. In this study, we investigated RvD1 effects on major processes involved in osteoarthritis (OA) pathophysiology. MATERIALS AND METHODS Human OA chondrocytes were treated with either 1 ng/ml interleukin-1β (IL-1β) or 20 μM 4-hydroxynonenal (HNE), then treated or not with increased concentrations of RvD1 (0-10 μM). RvD1 levels were measured by enzyme immunoassay in synovial fluids from experimental dog model of OA and sham operated dogs obtained from our previous study. Cell viability was evaluated by 3-(4,5-dimethyl-thiazoyl)-2,5-diphenyl-SH-tetrazolium bromide assay. Parameters related to inflammation, catabolism and apoptosis were determined by enzyme-linked immunosorbent assay, Western blotting, and quantitative polymerase chain reaction. Glutathione (GSH) was assessed by commercial kit. The activation of mitogen-activated protein kinases and nuclear factor-kappaB (NF-κB) pathways was evaluated by Western blot. RESULTS We showed that RvD1 levels were higher in synovial fluids from OA joint compared to controls. In OA human chondrocytes, we demonstrated that RvD1 was not toxic up to 10 μM and stifled IL-1β-induced cyclooxygenase 2, prostaglandin E2, inducible nitric oxide synthase, nitric oxide, and matrix metalloproteinase-13. Our study of signalling pathways revealed that RvD1 suppressed IL-1β-induced activation of NF-κB/p65, p38/MAPK and JNK(1/2). Moreover, RvD1 prevented HNE-induced cell apoptosis and oxidative stress, as indicated by inactivation of caspases, inhibition of lactate dehydrogenase release, and increased levels of Bcl2 and AKT, as well as GSH. CONCLUSION This is the first in vitro study demonstrating the beneficial effect of RvD1 in OA. That RvD1 abolishing a number of factors known to be involved in OA pathogenesis renders it a clinically valuable agent in prevention of the disease.
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Affiliation(s)
- Houda Benabdoune
- Department of Pharmacology, Université de Montréal, Montreal, QC, Canada.,Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Elsa-Patricia Rondon
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Qin Shi
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Julio Fernandes
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Pierre Ranger
- Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Mohamed Benderdour
- Department of Pharmacology, Université de Montréal, Montreal, QC, Canada. .,Orthopedic Research Laboratory, Hôpital du Sacré-Cœur de Montréal, Room K-3045, 5400 Gouin Blvd. West, Montreal, QC, H4J 1C5, Canada.
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Oliveira BS, Zunzunegui MV, Quinlan J, Fahmi H, Tu MT, Guerra RO. Systematic review of the association between chronic social stress and telomere length: A life course perspective. Ageing Res Rev 2016; 26:37-52. [PMID: 26732034 DOI: 10.1016/j.arr.2015.12.006] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/10/2015] [Accepted: 12/21/2015] [Indexed: 12/31/2022]
Abstract
Our aim was to examine whether chronic social stress is associated with telomere length throughout the life course, following our protocol published in 2014. Structured searches were conducted in MEDLINE (PubMed interface), EMBASE (OVID interface), Cochrane Central (OVID interface) and grey from their start date onwards. Reference lists of retrieved citations were hand searched for relevant studies. Eighteen studies published until May 1, 2015 investigating the association between chronic social stress (as defined by poverty, exposure to violence, or family caregiving) and telomere length in healthy or diseased adults and children were independently selected by 2 reviewers. Sixteen of those studies were cross-sectional and two had a longitudinal design. Studies differed in type of stress exposure, method to measure telomere length and cell type. As meta-analysis could not be conducted, the data were synthesized as a narrative review. Based on this comprehensive review, chronic social stress accompanies telomere shortening in both early and adult exposures, with most eligible studies showing a significant relationship. We discuss the significance of chronic stress of social origin and the potential for social interventions through public policies and we recommend methodological improvements that would allow for future meta-analysis.
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Affiliation(s)
- Bruna Silva Oliveira
- Department of Physiotherapy, Federal University of Rio Grande do Norte, Av Sen. Salgado Filho, 3000, Campus Universitário, Natal 59078-970, RN, Brazil.
| | - Maria Victoria Zunzunegui
- Institut de Recherche en Santé Publique de l'Université de Montréal (IRSPUM), 7101 Avenue du Parc, Montréal, Québec H3N 1X 9, Canada.
| | - Jacklyn Quinlan
- Genetics Institute, University of Florida, Gainesville, FL, Mulligan Lab. 2033 Mowry Rd., P.O. Box 103610, United States; Department of Anthropology, University of Florida, Gainesville, FL, United States.
| | - Hassan Fahmi
- Department of Medicine, University of Montreal Hospital Research Centre (CRCHUM), 900, rue Saint-Denis, Montreal, Quebec, Canada.
| | - Mai Thanh Tu
- Institut de Recherche en Santé Publique de l'Université de Montréal (IRSPUM), 7101 Avenue du Parc, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3 J7, Canada.
| | - Ricardo Oliveira Guerra
- Department of Physiotherapy, Federal University of Rio Grande do Norte, Av Sen. Salgado Filho, 3000, Campus Universitário, Natal 59078-970, RN, Brazil.
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Lagares D, Ghassemi-Kakkaroodi P, Tremblay C, Wu J, Ahluwalia N, Probst C, Barry S, Black K, Montesi S, Blati M, Baron M, Fahmi H, Pardo A, Selman M, Pelletier JP, Martel-Pelletier J, Tager A, Kapoor M. OP0209 Soluble Ephrin-B2 Ectodomain Contributes to the Pathogenesis of Systemic Sclerosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Vasheghani F, Zhang Y, Li YH, Blati M, Fahmi H, Lussier B, Roughley P, Lagares D, Endisha H, Saffar B, Lajeunesse D, Marshall WK, Rampersaud YR, Mahomed NN, Gandhi R, Pelletier JP, Martel-Pelletier J, Kapoor M. PPARγ deficiency results in severe, accelerated osteoarthritis associated with aberrant mTOR signalling in the articular cartilage. Ann Rheum Dis 2015; 74:569-78. [PMID: 25573665 PMCID: PMC4345902 DOI: 10.1136/annrheumdis-2014-205743] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 11/18/2014] [Accepted: 12/07/2014] [Indexed: 11/15/2022]
Abstract
OBJECTIVES We have previously shown that peroxisome proliferator-activated receptor gamma (PPARγ), a transcription factor, is essential for the normal growth and development of cartilage. In the present study, we created inducible cartilage-specific PPARγ knockout (KO) mice and subjected these mice to the destabilisation of medial meniscus (DMM) model of osteoarthritis (OA) to elucidate the specific in vivo role of PPARγ in OA pathophysiology. We further investigated the downstream PPARγ signalling pathway responsible for maintaining cartilage homeostasis. METHODS Inducible cartilage-specific PPARγ KO mice were generated and subjected to DMM model of OA. We also created inducible cartilage-specific PPARγ/mammalian target for rapamycin (mTOR) double KO mice to dissect the PPARγ signalling pathway in OA. RESULTS Compared with control mice, PPARγ KO mice exhibit accelerated OA phenotype with increased cartilage degradation, chondrocyte apoptosis, and the overproduction of OA inflammatory/catabolic factors associated with the increased expression of mTOR and the suppression of key autophagy markers. In vitro rescue experiments using PPARγ expression vector reduced mTOR expression, increased expression of autophagy markers and reduced the expression of OA inflammatory/catabolic factors, thus reversing the phenotype of PPARγ KO mice chondrocytes. To dissect the in vivo role of mTOR pathway in PPARγ signalling, we created and subjected PPARγ-mTOR double KO mice to the OA model to see if the genetic deletion of mTOR in PPARγ KO mice (double KO) can rescue the accelerated OA phenotype observed in PPARγ KO mice. Indeed, PPARγ-mTOR double KO mice exhibit significant protection/reversal from OA phenotype. SIGNIFICANCE PPARγ maintains articular cartilage homeostasis, in part, by regulating mTOR pathway.
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Affiliation(s)
- Faezeh Vasheghani
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Yue Zhang
- Division of Genetics and Development, Toronto Western Research Institute, University Health Network (UHN), Toronto, Ontario, Canada
| | - Ying-Hua Li
- Division of Genetics and Development, Toronto Western Research Institute, University Health Network (UHN), Toronto, Ontario, Canada
| | - Meryem Blati
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Bertrand Lussier
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, Quebec, Canada
| | - Peter Roughley
- Genetics Unit, Shriners Hospital, McGill University, Montreal, Quebec, Canada
| | - David Lagares
- Pulmonary and Critical Care Unit and Center for Immunology and Inflammatory Diseases, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Massachusetts, USA
| | - Helal Endisha
- Division of Genetics and Development, Toronto Western Research Institute, University Health Network (UHN), Toronto, Ontario, Canada
| | - Bahareh Saffar
- Division of Genetics and Development, Toronto Western Research Institute, University Health Network (UHN), Toronto, Ontario, Canada
| | - Daniel Lajeunesse
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Wayne K Marshall
- Division of Orthopedics, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Y Raja Rampersaud
- Division of Orthopedics, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Nizar N Mahomed
- Division of Orthopedics, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Rajiv Gandhi
- Division of Orthopedics, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Mohit Kapoor
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
- Division of Genetics and Development, Toronto Western Research Institute, University Health Network (UHN), Toronto, Ontario, Canada
- Division of Orthopedics, Toronto Western Hospital, Toronto, Ontario, Canada
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
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Valverde-Franco G, Hum D, Matsuo K, Lussier B, Pelletier JP, Fahmi H, Kapoor M, Martel-Pelletier J. The in vivo effect of prophylactic subchondral bone protection of osteoarthritic synovial membrane in bone-specific Ephb4-overexpressing mice. Am J Pathol 2014; 185:335-46. [PMID: 25453723 DOI: 10.1016/j.ajpath.2014.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 10/16/2014] [Accepted: 10/20/2014] [Indexed: 01/17/2023]
Abstract
Osteoarthritis (OA) is characterized by progressive joint destruction, including synovial membrane alteration. EphB4 and its ligand ephrin-B2 were found in vitro to positively affect OA subchondral bone and cartilage. In vivo in an experimental mouse model overexpressing bone-specific Ephb4 (TgEphB4), a protective effect was found on both the subchondral bone and cartilage during OA. We investigated in the TgEphB4 mouse model the in vivo effect on synovial membrane during OA. Knee OA was surgically induced by destabilization of the medial meniscus (DMM). Synovial membrane was evaluated using histology, histomorphometry, IHC, and real-time PCR. Compared to DMM-wild-type (WT) mice, DMM-TgEphB4 mice had a significant decrease in synovial membrane thickness, vascular endothelial growth factor, and the profibrotic markers fibrin, type 1 procollagen, type 3 collagen, connective tissue growth factor, smooth muscle actin-α, cartilage oligomeric matrix protein, and procollagen-lysine, and 2-oxoglutarate 5-dioxygenase 2. Moreover, factors known to modulate transforming growth factor-β signaling, transforming growth factor receptor 1/ALK1, phosphorylated Smad-1, and heat shock protein 90β were significantly decreased in DMM-TgEphB4 compared with DMM-WT mice. Ephb4 overexpression also exhibited a protective effect on synovial membrane thickness of aged (24-month-old) mice. Overexpression of bone-specific Ephb4 clearly demonstrated prevention of the development and/or progression of fibrosis in OA synovial membrane, reinforcing the hypothesis that protecting the subchondral bone prophylactically and during OA reduces the pathologic changes in other articular tissues.
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Affiliation(s)
- Gladys Valverde-Franco
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - David Hum
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Koichi Matsuo
- Laboratory of Cell and Tissue Biology, School of Medicine, Keio University, Tokyo, Japan
| | - Bertrand Lussier
- Faculty of Veterinary Medicine, Clinical Science, University of Montreal, Saint-Hyacinthe, Quebec, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Mohit Kapoor
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada.
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Tardif G, Pelletier JP, Fahmi H, Hum D, Zhang Y, Kapoor M, Martel-Pelletier J. NFAT3 and TGF-β/SMAD3 regulate the expression of miR-140 in osteoarthritis. Arthritis Res Ther 2014; 15:R197. [PMID: 24257415 PMCID: PMC3978709 DOI: 10.1186/ar4387] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 11/12/2013] [Indexed: 12/16/2022] Open
Abstract
Introduction MicroRNAs (miRNAs) down-regulate their target genes. The intronic miR-140, present in the WW domain containing E3 ubiquitin protein ligase 2 (WWP2) gene, decreases the expression of genes that play detrimental roles in osteoarthritis (OA). As the expression level of miR-140 is significantly decreased in human OA chondrocytes, we investigated its regulation in those cells. Methods Gene expression in human chondrocytes was determined by quantitative polymerase chain reaction (qPCR) and gene silencing was done in OA chondrocytes by transient transfection with specific small interfering RNAs (siRNAs). Binding sites of the miR-140 regulatory sequence (rsmiR-140) were identified by mutagenesis and chromatin immunoprecipitation (ChIP) in OA chondrocytes. The effects of translocation on OA chondrocytes were determined by immunocytochemistry and qPCR. Results In contrast to miR-140, the expression of WWP2 was similar in both normal and OA cells, suggesting that miR-140 has an additional level of regulation. rsmiR-140 showed activity and predicted binding sites for nuclear matrix transcription factor 4 (NMP4), myc-associated zinc (MAZ), nuclear factor of activated T-cells (NFAT), and mothers against decapentaplegic homolog 3 (SMAD3). Silencing NFAT3 (P ≤0.01) and SMAD3 (P ≤0.05) differentially regulated miR-140 independently of WWP2. Silencing NFAT5 decreased both miR-140 and WWP2 (P ≤0.003 and P ≤0.05, respectively). NFAT3 activation increased and transforming growth factor-β (TGF-β) decreased rsmiR-140 activity. Mutagenesis of rsmiR-140 and ChIP assays identified binding sites at which NFAT3 (activator) and SMAD3 (repressor) directly regulated miR-140. TGF-β interfered with NFAT3 translocation, and subsequently with miR-140 expression. Conclusions This is the first study to provide evidence of a regulatory mechanism of miR-140 independent of WWP2, and new and differential roles for NFAT3 and SMAD3 in the OA process in the regulation of miR-140 transcription. Such knowledge could advance therapeutic strategies targeting OA.
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El Mansouri F, Nebbaki S, Kapoor M, Afif H, Martel-Pelletier J, Pelletier JP, Benderdour M, Fahmi H. THU0464 Lsd1-Mediated Demethylation of Histone H3 Lysine 9 Contributes to Interleukin 1-Induced Microsomal Prostaglandin E Synthase-1 Expression. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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El Mansouri FE, Nebbaki SS, Kapoor M, Afif H, Martel-Pelletier J, Pelletier JP, Benderdour M, Fahmi H. Lysine-specific demethylase 1-mediated demethylation of histone H3 lysine 9 contributes to interleukin 1β-induced microsomal prostaglandin E synthase 1 expression in human osteoarthritic chondrocytes. Arthritis Res Ther 2014; 16:R113. [PMID: 24886859 PMCID: PMC4060543 DOI: 10.1186/ar4564] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 04/30/2014] [Indexed: 02/07/2023] Open
Abstract
Introduction Microsomal prostaglandin E synthase 1 (mPGES-1) catalyzes the terminal step in the biosynthesis of PGE2, a critical mediator in the pathophysiology of osteoarthritis (OA). Histone methylation plays an important role in epigenetic gene regulation. In this study, we investigated the roles of histone H3 lysine 9 (H3K9) methylation in interleukin 1β (IL-1β)-induced mPGES-1 expression in human chondrocytes. Methods Chondrocytes were stimulated with IL-1β, and the expression of mPGES-1 mRNA was evaluated using real-time RT-PCR. H3K9 methylation and the recruitment of the histone demethylase lysine-specific demethylase 1 (LSD1) to the mPGES-1 promoter were evaluated using chromatin immunoprecipitation assays. The role of LSD1 was further evaluated using the pharmacological inhibitors tranylcypromine and pargyline and small interfering RNA (siRNA)-mediated gene silencing. The LSD1 level in cartilage was determined by RT-PCR and immunohistochemistry. Results The induction of mPGES-1 expression by IL-1β correlated with decreased levels of mono- and dimethylated H3K9 at the mPGES-1 promoter. These changes were concomitant with the recruitment of the histone demethylase LSD1. Treatment with tranylcypromine and pargyline, which are potent inhibitors of LSD1, prevented IL-1β-induced H3K9 demethylation at the mPGES-1 promoter and expression of mPGES-1. Consistently, LSD1 gene silencing with siRNA prevented IL-1β-induced H3K9 demethylation and mPGES-1 expression, suggesting that LSD1 mediates IL-1β-induced mPGES-1 expression via H3K9 demethylation. We show that the level of LSD1 was elevated in OA compared to normal cartilage. Conclusion These results indicate that H3K9 demethylation by LSD1 contributes to IL-1β-induced mPGES-1 expression and suggest that this pathway could be a potential target for pharmacological intervention in the treatment of OA and possibly other arthritic conditions.
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Quinlan J, Tu MT, Langlois EV, Kapoor M, Ziegler D, Fahmi H, Zunzunegui MV. Protocol for a systematic review of the association between chronic stress during the life course and telomere length. Syst Rev 2014; 3:40. [PMID: 24886862 PMCID: PMC4022427 DOI: 10.1186/2046-4053-3-40] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 04/16/2014] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The effects of stress on ill health have become evident in recent years. Under acute stress situations, a cascade of physiological events helps the body mount an appropriate adaptive response. However, under chronic stress situations, this physiological response may lead to wear and tear on the body that accelerates the decline in physiological functioning and increases the risk of chronic conditions. Recent evidence for social stress experienced during childhood suggests serious consequences many years later, even later life. Telomere length, a marker of cell aging, may provide a link between chronic social stress and age-associated physical and mental decline and risk of chronic conditions. This study examines whether chronic social stress is associated with telomere length throughout the life course. METHODS/DESIGN We will perform a systematic review of the literature on the relationship between chronic social stress, for example, due to violence, extreme poverty, or caregiving of people with disabling conditions (exposure), and telomere length (outcome) by searching electronic databases in MEDLINE (PubMed interface), EMBASE (OVID interface), Cochrane Central (OVID interface) and gray literature from their start date onwards. We will limit the search to studies performed on human populations. Two reviewers will conduct standardized screening, eligibility assessment, data abstraction, and scientific quality assessment. All study designs investigating the association between chronic social stress and telomere length in healthy or diseased adults and children will be eligible for inclusion in the review. We will extract individual demographic and socioeconomic characteristics, research setting, method of measuring telomere length, reported outcome, and determinants of interest. Studies will also be stratified by 1) age into 3 groups: childhood (0 to 18 years), adulthood (19 to 64 years) and late life (65+); 2) cell type; 3) study design; and 4) telomere length assessment method. Where feasible, study results will be combined through meta-analyses to obtain a pooled measure of associations. Results will be reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement. DISCUSSION This systematic review will provide knowledge on the existing evidence for chronic social stress and its association with telomere lengths throughout the life course.
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Affiliation(s)
- Jacklyn Quinlan
- Department of Medicine, Research Centre of the University of Montreal Hospital Centre (CRCHUM), 3875 St-Urbain St, Montreal, Quebec H2W 1V1, Canada.
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Zhang Y, Vasheghani F, Li YH, Blati M, Simeone K, Fahmi H, Lussier B, Roughley P, Lagares D, Pelletier JP, Martel-Pelletier J, Kapoor M. Cartilage-specific deletion of mTOR upregulates autophagy and protects mice from osteoarthritis. Ann Rheum Dis 2014; 74:1432-40. [DOI: 10.1136/annrheumdis-2013-204599] [Citation(s) in RCA: 258] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 02/16/2014] [Indexed: 12/21/2022]
Abstract
ObjectivesMammalian target of rapamycin (mTOR) (a serine/threonine protein kinase) is a major repressor of autophagy, a cell survival mechanism. The specific in vivo mechanism of mTOR signalling in OA pathophysiology is not fully characterised. We determined the expression of mTOR and known autophagy genes in human OA cartilage as well as mouse and dog models of experimental OA. We created cartilage-specific mTOR knockout (KO) mice to determine the specific role of mTOR in OA pathophysiology and autophagy signalling in vivo.MethodsInducible cartilage-specific mTOR KO mice were generated and subjected to mouse model of OA. Human OA chondrocytes were treated with rapamycin and transfected with Unc-51–like kinase 1 (ULK1) siRNA to determine mTOR signalling.ResultsmTOR is overexpressed in human OA cartilage as well as mouse and dog experimental OA. Upregulation of mTOR expression co-relates with increased chondrocyte apoptosis and reduced expression of key autophagy genes during OA. Subsequently, we show for the first time that cartilage-specific ablation of mTOR results in increased autophagy signalling and a significant protection from destabilisation of medial meniscus (DMM)-induced OA associated with a significant reduction in the articular cartilage degradation, apoptosis and synovial fibrosis. Furthermore, we show that regulation of ULK1/adenosine monophosphate-activated protein kinase (AMPK) signalling pathway by mTOR may in part be responsible for regulating autophagy signalling and the balance between catabolic and anabolic factors in the articular cartilage.ConclusionsThis study provides a direct evidence of the role of mTOR and its downstream modulation of autophagy in articular cartilage homeostasis.
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Shi Q, Fahmi H, Fernandes J, Benderdour M. AB0133 New evidence linking the in vivo implication of 4-hydroxynonenal in osteoarthritis pathogenesis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Shi Q, Abusarah J, Baroudi G, Fernandes JC, Fahmi H, Benderdour M. Response to 'Ramipril attenuates lipid peroxidation and cardiac fibrosis in an experimental model of rheumatoid arthritis' - authors' reply. Arthritis Res Ther 2013; 15:406. [PMID: 23566352 PMCID: PMC3672737 DOI: 10.1186/ar4196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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