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Bensaada I, Robin B, Perez J, Salemkour Y, Chipont A, Camus M, Lemoine M, Guyonnet L, Lazareth H, Letavernier E, Hénique C, Tharaux PL, Lenoir O. Calpastatin prevents Angiotensin II-mediated podocyte injury through maintenance of autophagy. Kidney Int 2021; 100:90-106. [PMID: 33675847 DOI: 10.1016/j.kint.2021.02.024] [Citation(s) in RCA: 4] [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: 08/05/2020] [Revised: 01/29/2021] [Accepted: 02/10/2021] [Indexed: 12/20/2022]
Abstract
The strong predictive value of proteinuria in chronic glomerulopathies is firmly established as well as the pathogenic role of angiotensin II promoting progression of glomerular disease with an altered glomerular filtration barrier, podocyte injury and scarring of glomeruli. Here we found that chronic angiotensin II-induced hypertension inhibited autophagy flux in mouse glomeruli. Deletion of Atg5 (a gene encoding a protein involved autophagy) specifically in the podocyte resulted in accelerated angiotensin II-induced podocytopathy, accentuated albuminuria and glomerulosclerosis. This indicates that autophagy is a key protective mechanism in the podocyte in this condition. Angiotensin-II induced calpain activity in podocytes inhibits autophagy flux. Podocytes from mice with transgenic expression of the endogenous calpain inhibitor calpastatin displayed higher podocyte autophagy at baseline that was resistant to angiotensin II-dependent inhibition. Also, sustained autophagy with calpastatin limited podocyte damage and albuminuria. These findings suggest that hypertension has pathogenic effects on the glomerular structure and function, in part through activation of calpains leading to blockade of podocyte autophagy. These findings uncover an original mechanism whereby angiotensin II-mediated hypertension inhibits autophagy via calcium-induced recruitment of calpain with pathogenic consequences in case of imbalance by calpastatin activity. Thus, preventing a calpain-mediated decrease in autophagy may be a promising new therapeutic strategy for nephropathies associated with high renin-angiotensin system activity.
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Affiliation(s)
| | - Blaise Robin
- Université de Paris, PARCC, Inserm, Paris, France
| | - Joëlle Perez
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | | | - Anna Chipont
- Université de Paris, PARCC, Inserm, Paris, France
| | - Marine Camus
- Université de Paris, PARCC, Inserm, Paris, France
| | | | - Lea Guyonnet
- Université de Paris, PARCC, Inserm, Paris, France
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Henique C, Bollée G, Loyer X, Grahammer F, Dhaun N, Camus M, Vernerey J, Guyonnet L, Gaillard F, Lazareth H, Meyer C, Bensaada I, Legrès L, Satoh T, Akira S, Bruneval P, Dimmeler S, Tedgui A, Karras A, Thervet E, Nochy D, Huber TB, Mesnard L, Lenoir O, Tharaux PL. Genetic and pharmacological inhibition of microRNA-92a maintains podocyte cell cycle quiescence and limits crescentic glomerulonephritis. Nat Commun 2017; 8:1829. [PMID: 29184126 PMCID: PMC5705755 DOI: 10.1038/s41467-017-01885-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 10/23/2017] [Indexed: 01/07/2023] Open
Abstract
Crescentic rapidly progressive glomerulonephritis (RPGN) represents the most aggressive form of acquired glomerular disease. While most therapeutic approaches involve potentially toxic immunosuppressive strategies, the pathophysiology remains incompletely understood. Podocytes are glomerular epithelial cells that are normally growth-arrested because of the expression of cyclin-dependent kinase (CDK) inhibitors. An exception is in RPGN where podocytes undergo a deregulation of their differentiated phenotype and proliferate. Here we demonstrate that microRNA-92a (miR-92a) is enriched in podocytes of patients and mice with RPGN. The CDK inhibitor p57Kip2 is a major target of miR-92a that constitutively safeguards podocyte cell cycle quiescence. Podocyte-specific deletion of miR-92a in mice de-repressed the expression of p57Kip2 and prevented glomerular injury in RPGN. Administration of an anti-miR-92a after disease initiation prevented albuminuria and kidney failure, indicating miR-92a inhibition as a potential therapeutic strategy for RPGN. We demonstrate that miRNA induction in epithelial cells can break glomerular tolerance to immune injury. Crescentic rapidly progressive glomerulonephritis is a severe form of glomerula disease characterized by podocyte proliferation and migration. Here Henique et al. demonstrate that inhibition of miRNA-92a prevents kidney failure by promoting the expression of CDK inhibitor p57Kip2 that regulates podocyte cell cycle.
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Affiliation(s)
- Carole Henique
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France. .,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France. .,Institut Mondor de Recherche Biomédicale, team 21, Unité Mixte de Recherche (UMR) 955, Institut National de la Santé et de la Recherche Médicale (INSERM), Créteil, 94000, France. .,Université Paris-Est Créteil, Créteil, 94000, France.
| | - Guillaume Bollée
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France.,Centre de Recherche, Centre Hospitalier de l'Université de Montréal, Montréal, H2X 0A9, QC, Canada
| | - Xavier Loyer
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France
| | - Florian Grahammer
- III. Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg, 20246, Germany.,Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, P.O. Box 79085, Germany.,BIOSS Centre for Biological Signalling Studies and Center for Biological Systems Analysis (ZBSA), Albert-Ludwigs-University, Freiburg, 79104, Germany
| | - Neeraj Dhaun
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,British Heart Foundation Centre of Research Excellence (BHF CoRE), Edinburgh, EH16 4TJ, UK
| | - Marine Camus
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France
| | - Julien Vernerey
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France
| | - Léa Guyonnet
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France
| | - François Gaillard
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France
| | - Hélène Lazareth
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France
| | - Charlotte Meyer
- BIOSS Centre for Biological Signalling Studies and Center for Biological Systems Analysis (ZBSA), Albert-Ludwigs-University, Freiburg, 79104, Germany
| | - Imane Bensaada
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France
| | - Luc Legrès
- Unité Mixte de Recherche (UMR_S) 1165, Institut National de la Santé et de la Recherche Médicale (INSERM), Plateforme MicroLaser Biotech, Paris, 75010, France
| | - Takashi Satoh
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka, 565-0871, Japan
| | - Shizuo Akira
- Laboratory of Host Defense, WPI Immunology Frontier Research Center (IFReC), Osaka University, Osaka, 565-0871, Japan
| | - Patrick Bruneval
- Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France.,Department of Pathology, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, 75015, France.,Département Hospitalo-Universitaire, Paris Descartes University-Hôpitaux Universitaires Paris Ouest, Paris, 75015, France
| | - Stefanie Dimmeler
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Frankfurt, 60590, Germany
| | - Alain Tedgui
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France
| | - Alexandre Karras
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France.,Département Hospitalo-Universitaire, Paris Descartes University-Hôpitaux Universitaires Paris Ouest, Paris, 75015, France.,Renal Division, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, 75015, France
| | - Eric Thervet
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France.,Département Hospitalo-Universitaire, Paris Descartes University-Hôpitaux Universitaires Paris Ouest, Paris, 75015, France.,Renal Division, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, 75015, France
| | - Dominique Nochy
- Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France.,Department of Pathology, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, 75015, France.,Département Hospitalo-Universitaire, Paris Descartes University-Hôpitaux Universitaires Paris Ouest, Paris, 75015, France
| | - Tobias B Huber
- III. Medizinische Klinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg, 20246, Germany.,Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, P.O. Box 79085, Germany.,BIOSS Centre for Biological Signalling Studies and Center for Biological Systems Analysis (ZBSA), Albert-Ludwigs-University, Freiburg, 79104, Germany
| | - Laurent Mesnard
- Unité Mixte de Recherche (UMR) 702, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75020, France.,Faculty of Medicine, University Pierre and Marie Curie, Paris, 75020, France
| | - Olivia Lenoir
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France
| | - Pierre-Louis Tharaux
- Paris Cardiovascular Research Centre-PARCC, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, 75015, France. .,Paris Descartes University, Sorbonne Paris Cité, Paris, 75006, France. .,Renal Division, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, 75015, France.
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