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Xu-Dubois Y, Kavvadas P, Keuylian Z, Hertig A, Rondeau E, Chatziantoniou C. Notch3 expression in capillary pericytes predicts worse graft outcome in human renal grafts with antibody-mediated rejection. J Cell Mol Med 2022; 26:3203-3212. [PMID: 35611804 PMCID: PMC9170800 DOI: 10.1111/jcmm.17325] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/04/2022] [Accepted: 03/22/2022] [Indexed: 11/29/2022] Open
Abstract
Microvasculature consisting of endothelial cells and pericytes is the main site of injury during antibody-mediated rejection (ABMR) of renal grafts. Little is known about the mechanisms of activation of pericytes in this pathology. We have found recently that activation of Notch3, a mediator of vascular smooth muscle cell proliferation and dedifferentiation, promotes renal inflammation and fibrosis and aggravates progression of renal disease. Therefore, we studied the pericyte expression of Notch3 in 49 non-selected renal graft biopsies (32 for clinical cause, 17 for graft surveillance). We analysed its relationship with patients' clinical and morphological data, and compared with the expression of partial endothelial mesenchymal transition (pEndMT) markers, known to reflect endothelial activation during ABMR. Notch3 was de novo expressed in pericytes of grafts with ABMR, and was significantly correlated with the microcirculation inflammation scores of peritubular capillaritis and glomerulitis and with the expression of pEndMT markers. Notch3 expression was also associated with graft dysfunction and proteinuria at the time of biopsy and in the long term. Multivariate analysis confirmed pericyte expression of Notch3 as an independent risk factor predicting graft loss. These data suggest that Notch3 is activated in the pericytes of renal grafts with ABMR and is associated with poor graft outcome.
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Affiliation(s)
- Yichun Xu-Dubois
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Public Health, Assistance Publique-Hôpitaux de Paris (AP-HP), Tenon Hospital, Paris, France
| | - Panagiotis Kavvadas
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France
| | - Zela Keuylian
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France
| | - Alexandre Hertig
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France.,Nephrology Department, Foch Hospital, Suresnes, France
| | - Eric Rondeau
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France.,Intensive Care Nephrology and Transplantation Department, Tenon Hospital, APHP, Paris, France
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Roohi SA, Keuylian Z, Barritault D. ReGeneraTing Agents (rgta ®) technology combined with antibiotics improves outcomes for infections in the upper limb. Clin Case Rep 2021; 9:1083-1091. [PMID: 33768787 PMCID: PMC7981774 DOI: 10.1002/ccr3.3645] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 11/05/2020] [Accepted: 11/08/2020] [Indexed: 11/23/2022] Open
Abstract
A matrix therapy agent marketed as CACIPLIQ20® showed marked improvement in the healing rate of hand infections, including functional recovery. It can be used at both earlier and later stages to promote faster healing and prevent an adverse outcome.
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Affiliation(s)
- Sharifah Ahmad Roohi
- Hand & Upper Limb CentrePantai Hospital Kuala LumpurKuala LumpurMalaysia
- Prince Court Medical CentreOrthopaedic ClinicKuala LumpurMalaysia
| | | | - Denis Barritault
- OTR3ParisFrance
- Laboratory Cell Growth and Tissue Repair (CRRET)UPEC 4397/ERLCNRS 9215Université‐Paris‐Est‐CréteilCréteilFrance
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Keuylian Z, Hovnanian A. Mechanistic insight from murine models of Netherton syndrome. Biol Chem 2017; 397:1223-1228. [PMID: 27710911 DOI: 10.1515/hsz-2016-0203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 09/30/2016] [Indexed: 11/15/2022]
Abstract
Protease regulation plays a crucial role in skin homeostasis and inflammation as revealed by the identification of loss-of-function mutations in SPINK5 (serine protease inhibitor of Kazal type 5) in Netherton sydrome (NS). SPINK5 encodes LEKTI (lympho-epithelial Kazal type related inhibitor), a multidomain serine protease inhibitor expressed in all stratified epithelia. Our laboratory has developed a number of murine models which have been instrumental in dissecting the pathogenesis of NS. This minireview discusses the major findings of these models and emphasizes the role of protease regulation, especially kallikrein-related peptidases in NS.
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Pattarini L, Trichot C, Bogiatzi S, Grandclaudon M, Meller S, Keuylian Z, Durand M, Volpe E, Madonna S, Cavani A, Chiricozzi A, Romanelli M, Hori T, Hovnanian A, Homey B, Soumelis V. TSLP-activated dendritic cells induce human T follicular helper cell differentiation through OX40-ligand. J Exp Med 2017; 214:1529-1546. [PMID: 28428203 PMCID: PMC5413322 DOI: 10.1084/jem.20150402] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 12/30/2016] [Accepted: 03/02/2017] [Indexed: 12/27/2022] Open
Abstract
T follicular helper cells (Tfh) are implicated in various pathological conditions, but how they differentiate in Th2-skewed environments is unknown. Pattarini et al. delineate a pathway for human Tfh differentiation induced by TSLP through OX40L, relevant to atopic dermatitis. T follicular helper cells (Tfh) are important regulators of humoral responses. Human Tfh polarization pathways have been thus far associated with Th1 and Th17 polarization pathways. How human Tfh cells differentiate in Th2-skewed environments is unknown. We show that thymic stromal lymphopoietin (TSLP)–activated dendritic cells (DCs) promote human Tfh differentiation from naive CD4 T cells. We identified a novel population, distinct from Th2 cells, expressing IL-21 and TNF, suggestive of inflammatory cells. TSLP-induced T cells expressed CXCR5, CXCL13, ICOS, PD1, BCL6, BTLA, and SAP, among other Tfh markers. Functionally, TSLP-DC–polarized T cells induced IgE secretion by memory B cells, and this depended on IL-4Rα. TSLP-activated DCs stimulated circulating memory Tfh cells to produce IL-21 and CXCL13. Mechanistically, TSLP-induced Tfh differentiation depended on OX40-ligand, but not on ICOS-ligand. Our results delineate a pathway of human Tfh differentiation in Th2 environments.
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Affiliation(s)
- Lucia Pattarini
- Institut Curie, PSL Research University, Institut National de la Santé et de la Recherche Médicale (INSERM), U932, F-75005 Paris, France
| | - Coline Trichot
- Institut Curie, PSL Research University, Institut National de la Santé et de la Recherche Médicale (INSERM), U932, F-75005 Paris, France
| | - Sofia Bogiatzi
- Service de dermatologie et venereologie, CHUV University Hospital of Lausanne, 1011 Lausanne, Switzerland
| | - Maximilien Grandclaudon
- Institut Curie, PSL Research University, Institut National de la Santé et de la Recherche Médicale (INSERM), U932, F-75005 Paris, France
| | - Stephan Meller
- Department of Dermatology, Heinrich-Heine-University Medical Faculty, 40225 Düsseldorf, Germany
| | - Zela Keuylian
- INSERM, UMR 1163, Laboratory of Genetic Skin Diseases, Imagine Institute and Paris Descartes University, F-75015 Paris, France
| | - Melanie Durand
- Institut Curie, PSL Research University, Institut National de la Santé et de la Recherche Médicale (INSERM), U932, F-75005 Paris, France
| | - Elisabetta Volpe
- Laboratory of Neuroimmunology, Fondazione Santa Lucia, 00142 Rome, Italy
| | - Stefania Madonna
- Laboratory of Experimental Immunology, Istituto Dermopatico dell'Immacolata-Istituto di Ricovero e Cura a Carattere Scientifico, Fondazione Luigi Maria Monti, 00167 Rome, Italy
| | - Andrea Cavani
- National Institute of Health, Migration and Poverty, 00153 Rome, Italy
| | | | - Marco Romanelli
- Department of Dermatology, University of Pisa, 56100 Pisa, Italy
| | - Toshiyuki Hori
- College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Alain Hovnanian
- INSERM, UMR 1163, Laboratory of Genetic Skin Diseases, Imagine Institute and Paris Descartes University, F-75015 Paris, France
| | - Bernhard Homey
- Department of Dermatology, Heinrich-Heine-University Medical Faculty, 40225 Düsseldorf, Germany
| | - Vassili Soumelis
- Institut Curie, PSL Research University, Institut National de la Santé et de la Recherche Médicale (INSERM), U932, F-75005 Paris, France
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Xu-Dubois YC, Peltier J, Brocheriou I, Suberbielle-Boissel C, Djamali A, Reese S, Mooney N, Keuylian Z, Lion J, Ouali N, Levy PP, Jouanneau C, Rondeau E, Hertig A. Markers of Endothelial-to-Mesenchymal Transition: Evidence for Antibody-Endothelium Interaction during Antibody-Mediated Rejection in Kidney Recipients. J Am Soc Nephrol 2015; 27:324-32. [PMID: 25995444 DOI: 10.1681/asn.2014070679] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 07/16/2014] [Accepted: 04/11/2015] [Indexed: 01/06/2023] Open
Abstract
Antibody-mediated rejection (ABMR) is a leading cause of allograft loss. Treatment efficacy depends on accurate diagnosis at an early stage. However, sensitive and reliable markers of antibody-endothelium interaction during ABMR are not available for routine use. Using immunohistochemistry, we retrospectively studied the diagnostic value of three markers of endothelial-to-mesenchymal transition (EndMT), fascin1, vimentin, and heat shock protein 47, for ABMR in 53 renal transplant biopsy specimens, including 20 ABMR specimens, 24 cell-mediated rejection specimens, and nine normal grafts. We validated our results in an independent set of 74 unselected biopsy specimens. Endothelial cells of the peritubular capillaries in grafts with ABMR expressed fascin1, vimentin, and heat shock protein 47 strongly, whereas those from normal renal grafts did not. The level of EndMT marker expression was significantly associated with current ABMR criteria, including capillaritis, glomerulitis, peritubular capillary C4d deposition, and donor-specific antibodies. These markers allowed us to identify C4d-negative ABMR and to predict late occurrence of disease. EndMT markers were more specific than capillaritis for the diagnosis and prognosis of ABMR and predicted late (up to 4 years after biopsy) renal graft dysfunction and proteinuria. In the independent set of 74 renal graft biopsy specimens, the EndMT markers for the diagnosis of ABMR had a sensitivity of 100% and a specificity of 85%. Fascin1 expression in peritubular capillaries was also induced in a rat model of ABMR. In conclusion, EndMT markers are a sensitive and reliable diagnostic tool for detecting endothelial activation during ABMR and predicting late loss of allograft function.
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Affiliation(s)
- Yi-Chun Xu-Dubois
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité Mixte de Recherche (UMR)_S1155, Paris, France; INSERM, UMR_S1136, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, Equipe EPAR, Paris, France
| | - Julie Peltier
- Assistance Publique-Hôpitaux de Paris (AP-HP), Tenon Hospital, Renal Intensive Care Unit and Kidney Transplantation, Paris, France
| | - Isabelle Brocheriou
- Sorbonne Universités, Université Pierre et Marie Curie (UPMC) Université Paris 06, UMR_S1155, Paris, France; AP-HP, Tenon Hospital, Department of Pathology, Paris, France
| | | | - Arjang Djamali
- Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin; and
| | - Shannon Reese
- Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin; and
| | - Nuala Mooney
- INSERM, UMR_S1160, Paris, France, University Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Zela Keuylian
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité Mixte de Recherche (UMR)_S1155, Paris, France
| | - Julien Lion
- INSERM, UMR_S1160, Paris, France, University Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Nacéra Ouali
- Assistance Publique-Hôpitaux de Paris (AP-HP), Tenon Hospital, Renal Intensive Care Unit and Kidney Transplantation, Paris, France
| | - Pierre P Levy
- INSERM, UMR_S1136, Institut Pierre-Louis d'Epidémiologie et de Santé Publique, Equipe EPAR, Paris, France
| | - Chantal Jouanneau
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité Mixte de Recherche (UMR)_S1155, Paris, France
| | - Eric Rondeau
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité Mixte de Recherche (UMR)_S1155, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Tenon Hospital, Renal Intensive Care Unit and Kidney Transplantation, Paris, France; Sorbonne Universités, Université Pierre et Marie Curie (UPMC) Université Paris 06, UMR_S1155, Paris, France
| | - Alexandre Hertig
- Institut National de la Santé et de la Recherche Médicale (INSERM), Unité Mixte de Recherche (UMR)_S1155, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Tenon Hospital, Renal Intensive Care Unit and Kidney Transplantation, Paris, France; Sorbonne Universités, Université Pierre et Marie Curie (UPMC) Université Paris 06, UMR_S1155, Paris, France;
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El Machhour F, Keuylian Z, Kavvadas P, Dussaule JC, Chatziantoniou C. Activation of Notch3 in Glomeruli Promotes the Development of Rapidly Progressive Renal Disease. J Am Soc Nephrol 2014; 26:1561-75. [PMID: 25421557 DOI: 10.1681/asn.2013090968] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [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: 09/13/2013] [Accepted: 08/13/2014] [Indexed: 11/03/2022] Open
Abstract
Notch3 expression is found in the glomerular podocytes of patients with lupus nephritis or focal segmental GN but not in normal kidneys. Here, we show that activation of the Notch3 receptor in the glomeruli is a turning point inducing phenotypic changes in podocytes promoting renal inflammation and fibrosis and leading to disease progression. In a model of rapidly progressive GN, Notch3 expression was induced by several-fold in podocytes concurrently with disease progression. By contrast, mice lacking Notch3 expression were protected because they exhibited less proteinuria, uremia, and inflammatory infiltration. Podocyte outgrowth from glomeruli isolated from wild-type mice during the early phase of the disease was higher than outgrowth from glomeruli of mice lacking Notch3. In vitro studies confirmed that podocytes expressing active Notch3 reorganize their cytoskeleton toward a proliferative/migratory and inflammatory phenotype. We then administered antisense oligodeoxynucleotides targeting Notch3 or scramble control oligodeoxynucleotides in wild-type mice concomitant to disease induction. Both groups developed chronic renal disease, but mice injected with Notch3 antisense had lower values of plasma urea and proteinuria and inflammatory infiltration. The improvement of renal function was accompanied by fewer deposits of fibrin within the glomeruli and by decreased peritubular inflammation. Finally, abnormal Notch3 staining was observed in biopsy samples of patients with crescentic GN. These results demonstrate that abnormal activation of Notch3 may be involved in the progression of renal disease by promoting migratory and proinflammatory pathways. Inhibiting Notch3 activation could be a novel, promising approach to treat GN.
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Affiliation(s)
- Fala El Machhour
- National Institute for Health and Medical Research (INSERM), Mixed Research Unit S1155, Tenon Hospital, Paris, France; Sorbonne University, Pierre and Marie Curie University (University of Paris 6), Paris, France; and
| | - Zela Keuylian
- National Institute for Health and Medical Research (INSERM), Mixed Research Unit S1155, Tenon Hospital, Paris, France
| | - Panagiotis Kavvadas
- National Institute for Health and Medical Research (INSERM), Mixed Research Unit S1155, Tenon Hospital, Paris, France
| | - Jean-Claude Dussaule
- National Institute for Health and Medical Research (INSERM), Mixed Research Unit S1155, Tenon Hospital, Paris, France; Sorbonne University, Pierre and Marie Curie University (University of Paris 6), Paris, France; and Department of Physiology, Saint-Antoine Hospital, Public Hospital Network of Paris, Paris, France
| | - Christos Chatziantoniou
- National Institute for Health and Medical Research (INSERM), Mixed Research Unit S1155, Tenon Hospital, Paris, France; Sorbonne University, Pierre and Marie Curie University (University of Paris 6), Paris, France; and
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Keuylian Z, El Machhour F, Dussaule JC, Chatziantoniou C. Abstract 229: Genetic inhibition of Notch3 protects animals against Chronic Kidney Disease. Hypertension 2014. [DOI: 10.1161/hyp.64.suppl_1.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the present study, we show that expression of the Notch3 receptor in glomeruli is associated to the development of renal disease and that inhibition of this expression is accompanied by renoprotection.
In a model of rapidly progressive glomerulonephritis (nephrotoxic serum-induced renal disease), Notch3 expression was induced by several-fold in podocytes concurrently with disease progression. In contrast, mice with genetic ablation of Notch3 expression (KO) were protected as they showed less proteinuria, uremia and renal inflammation. In vitro studies suggested that podocytes expressing active Notch3 acquire a migratory and pro-inflammatory phenotype. To evaluate whether inhibiting Notch3 could be of therapeutic interest, we administered antisense oligodeoxynucleotides targeting Notch3 in wild type mice concomitantly to the disease induction, whereas scrambled sequences were used as controls. Both groups of mice developed renal disease, but mice injected with Notch3 antisense were protected compared to the scrambled group, as evidenced by the decreased values of plasma urea and proteinuria. In addition, the improvement of renal function was accompanied by fewer crescent formations and less deposits of fibrin within the glomeruli, and by decreased peritubular inflammation.
These results demonstrate that abnormal activation of Notch3 in the kidneys is involved in the progression of renal disease by promoting migratory and pro-inflammatory pathways and that blocking this activation preserves renal function and structure. Inhibiting Notch3 activation could be a novel, promising approach to treat chronic renal disease.
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Lipskaia L, Keuylian Z, Blirando K, Mougenot N, Jacquet A, Rouxel C, Sghairi H, Elaib Z, Blaise R, Adnot S, Hajjar RJ, Chemaly ER, Limon I, Bobe R. Expression of sarco (endo) plasmic reticulum calcium ATPase (SERCA) system in normal mouse cardiovascular tissues, heart failure and atherosclerosis. Biochim Biophys Acta 2014; 1843:2705-18. [PMID: 25110346 DOI: 10.1016/j.bbamcr.2014.08.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 07/29/2014] [Accepted: 08/01/2014] [Indexed: 11/26/2022]
Abstract
UNLABELLED The sarco(endo)plasmic reticulum Ca(2+)ATPases (SERCA) system, a key regulator of calcium cycling and signaling, is composed of several isoforms. We aimed to characterize the expression of SERCA isoforms in mouse cardiovascular tissues and their modulation in cardiovascular pathologies (heart failure and/or atherosclerosis). Five isoforms (SERCA2a, 2b, 3a, 3b and 3c) were detected in the mouse heart and thoracic aorta. Absolute mRNA quantification revealed SERCA2a as the dominant isoform in the heart (~99%). Both SERCA2 isoforms co-localized in cardiomyocytes (CM) longitudinal sarcoplasmic reticulum (SR), SERCA3b was located at the junctional SR. In the aorta, SERCA2a accounted for ~91% of total SERCA and SERCA2b for ~5%. Among SERCA3, SERCA3b was the most expressed (~3.3%), mainly found in vascular smooth muscle cells (VSMC), along with SERCA2a and 2b. In failing CM, SERCA2a was down-regulated by 2-fold and re-localized from longitudinal to junctional SR. A strong down-regulation of SERCA2a was also observed in atherosclerotic vessels containing mainly synthetic VSMCs. The proportion of both SERCA2b and SERCA3b increased to 9.5% and 8.3%, respectively. IN CONCLUSION 1) SERCA2a is the major isoform in both cardiac and vascular myocytes; 2) the expression of SERCA2a mRNA is ~30 fold higher in the heart compared to vascular tissues; and 3) nearly half the amount of SERCA2a mRNA is measured in both failing cardiomyocytes and synthetic VSMCs compared to healthy tissues, with a relocation of SERCA2a in failing cardiomyocytes. Thus, SERCA2a is the principal regulator of excitation-contraction coupling in both CMs and contractile VSMCs.
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Affiliation(s)
- Larissa Lipskaia
- Mount Sinai School of Medicine, Cardiovascular Research Center, NY, USA; Inserm, U955, Equipe 8, Créteil, France; Université Paris-Est, Faculté de médecine, Créteil, France
| | - Zela Keuylian
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8256 B2A, IBPS, F-75005, Paris, France; INSERM U1155, Tenon Hospital, Paris, France
| | - Karl Blirando
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8256 B2A, IBPS, F-75005, Paris, France
| | | | | | - Clotilde Rouxel
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8256 B2A, IBPS, F-75005, Paris, France
| | - Haifa Sghairi
- INSERM U770, Le Kremlin-Bicetre, France; Université Paris-sud, Le Kremlin-Bicetre, France
| | - Ziane Elaib
- INSERM U770, Le Kremlin-Bicetre, France; Université Paris-sud, Le Kremlin-Bicetre, France
| | - Regis Blaise
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8256 B2A, IBPS, F-75005, Paris, France
| | - Serge Adnot
- Inserm, U955, Equipe 8, Créteil, France; Université Paris-Est, Faculté de médecine, Créteil, France
| | - Roger J Hajjar
- Mount Sinai School of Medicine, Cardiovascular Research Center, NY, USA
| | - Elie R Chemaly
- Mount Sinai School of Medicine, Cardiovascular Research Center, NY, USA; Department of Biomedical Engineering, University of Virginia, School of Medicine, Charlottesville, VA, USA
| | - Isabelle Limon
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 8256 B2A, IBPS, F-75005, Paris, France
| | - Regis Bobe
- INSERM U770, Le Kremlin-Bicetre, France; Université Paris-sud, Le Kremlin-Bicetre, France.
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Blirando K, Lipskaia L, Keuylian Z, Rouxel C, Blaise R, Adnot S, Hajjar RJ, Chemaly ER, Limon I, Bobe R. P374Expression pattern of sarco (endo) plasmic reticulum calcium atpases (SERCA) isoforms in normal and diseased mouse cardiovascular tissues. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu091.57] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Keuylian Z, de Baaij JH, Gueguen M, Glorian M, Rouxel C, Merlet E, Lipskaia L, Blaise R, Mateo V, Limon I. The Notch pathway attenuates interleukin 1β (IL1β)-mediated induction of adenylyl cyclase 8 (AC8) expression during vascular smooth muscle cell (VSMC) trans-differentiation. J Biol Chem 2013. [DOI: 10.1074/jbc.a111.292516] [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: 11/06/2022] Open
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Keuylian Z, de Baaij JHF, Gueguen M, Glorian M, Rouxel C, Merlet E, Lipskaia L, Blaise R, Mateo V, Limon I. The Notch pathway attenuates interleukin 1β (IL1β)-mediated induction of adenylyl cyclase 8 (AC8) expression during vascular smooth muscle cell (VSMC) trans-differentiation. J Biol Chem 2012; 287:24978-89. [PMID: 22613711 DOI: 10.1074/jbc.m111.292516] [Citation(s) in RCA: 18] [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] [Indexed: 12/20/2022] Open
Abstract
Vascular smooth muscle cell (VSMC) trans-differentiation, or their switch from a contractile/quiescent to a secretory/inflammatory/migratory state, is known to play an important role in pathological vascular remodeling including atherosclerosis and postangioplasty restenosis. Several reports have established the Notch pathway as tightly regulating VSMC response to various stress factors through growth, migration, apoptosis, and de-differentiation. More recently, we showed that alterations of the Notch pathway also govern VSMC acquisition of the inflammatory state, one of the major events accelerating atherosclerosis. We also evidenced that the inflammatory context of atherosclerosis triggers a de novo expression of adenylyl cyclase isoform 8 (AC8), associated with the properties developed by trans-differentiated VSMCs. As an initial approach to understanding the regulation of AC8 expression, we examined the role of the Notch pathway. Here we show that inhibiting the Notch pathway enhances the effect of IL1β on AC8 expression, amplifies its deleterious effects on the VSMC trans-differentiated phenotype, and decreases Notch target genes Hrt1 and Hrt3. Conversely, Notch activation resulted in blocking AC8 expression and up-regulated Hrt1 and Hrt3 expression. Furthermore, overexpressing Hrt1 and Hrt3 significantly decreased IL1β-induced AC8 expression. In agreement with these in vitro findings, the in vivo rat carotid balloon-injury model of restenosis evidenced that AC8 de novo expression coincided with down-regulation of the Notch3 pathway. These results, demonstrating that the Notch pathway attenuates IL1β-mediated AC8 up-regulation in trans-differentiated VSMCs, suggest that AC8 expression, besides being induced by the proinflammatory cytokine IL1β, is also dependent on down-regulation of the Notch pathway occurring in an inflammatory context.
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Gueguen M, Keuylian Z, Mateo V, Mougenot N, Lompré AM, Michel JB, Meilhac O, Lipskaia L, Limon I. Implication of adenylyl cyclase 8 in pathological smooth muscle cell migration occurring in rat and human vascular remodelling. J Pathol 2010; 221:331-42. [DOI: 10.1002/path.2716] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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