2
|
Sayles NM, Napierala JS, Anrather J, Diedhiou N, Li J, Napierala M, Puccio H, Manfredi G. Comparative multi-omic analyses of cardiac mitochondrial stress in three mouse models of frataxin deficiency. Dis Model Mech 2023; 16:dmm050114. [PMID: 37691621 PMCID: PMC10581388 DOI: 10.1242/dmm.050114] [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: 01/30/2023] [Accepted: 09/05/2023] [Indexed: 09/12/2023] Open
Abstract
Cardiomyopathy is often fatal in Friedreich ataxia (FA). However, FA hearts maintain adequate function until advanced disease stages, suggesting initial adaptation to the loss of frataxin (FXN). Conditional cardiac knockout mouse models of FXN show transcriptional and metabolic profiles of the mitochondrial integrated stress response (ISRmt), which could play an adaptive role. However, the ISRmt has not been investigated in models with disease-relevant, partial decrease in FXN. We characterized the heart transcriptomes and metabolomes of three mouse models with varying degrees of FXN depletion: YG8-800, KIKO-700 and FXNG127V. Few metabolites were changed in YG8-800 mice, which did not provide a signature of cardiomyopathy or ISRmt; several metabolites were altered in FXNG127V and KIKO-700 hearts. Transcriptional changes were found in all models, but differentially expressed genes consistent with cardiomyopathy and ISRmt were only identified in FXNG127V hearts. However, these changes were surprisingly mild even at advanced age (18 months), despite a severe decrease in FXN levels to 1% of those of wild type. These findings indicate that the mouse heart has low reliance on FXN, highlighting the difficulty in modeling genetically relevant FA cardiomyopathy.
Collapse
Affiliation(s)
- Nicole M. Sayles
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, USA
- Neuroscience Graduate Program, Will Cornell Graduate School of Medical Sciences, 1300 York Ave, New York, NY 10065, USA
| | - Jill S. Napierala
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Josef Anrather
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, USA
| | - Nadège Diedhiou
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS/Université de Strasbourg UMR7104, Inserm U1258, B. P. 163, 67404 Illkirch, France
| | - Jixue Li
- Department of Neurology, Peter O'Donnell Jr. Brain Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Marek Napierala
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Hélène Puccio
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS/Université de Strasbourg UMR7104, Inserm U1258, B. P. 163, 67404 Illkirch, France
| | - Giovanni Manfredi
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, USA
| |
Collapse
|
3
|
Montaut S, Diedhiou N, Fahrer P, Marelli C, Lhermitte B, Robelin L, Vincent MC, Corti L, Taieb G, Gebus O, Rudolf G, Tarabeux J, Dondaine N, Canuet M, Almeras M, Benkirane M, Larrieu L, Chanson JB, Nadaj-Pakleza A, Echaniz-Laguna A, Cauquil C, Lannes B, Chelly J, Anheim M, Puccio H, Tranchant C. Biallelic RFC1-expansion in a French multicentric sporadic ataxia cohort. J Neurol 2021; 268:3337-3343. [PMID: 33666721 DOI: 10.1007/s00415-021-10499-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 11/16/2020] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Cerebellar ataxia with neuropathy and vestibular areflexia syndrome (CANVAS) is a recessively inherited multisystem ataxia compromising cerebellar, vestibular, and sensory nerves, which has been associated to a pathogenic AAGGG(n) biallelic expansion repeat in the RFC1 gene. Our objective was to assess its prevalence in a French cohort of patients with idiopathic sporadic late-onset ataxia (ILOA), idiopathic early-onset ataxia (IEOA), or Multiple System Atrophy of Cerebellar type (MSA-C). METHODS 163 patients were recruited in 3 French tertiary centers: 100 ILOA, 21 IEOA, and 42 patients with possible or probable MSA-C. RESULTS A pathogenic biallelic RFC1 AAGGG(n) repeat expansion was found in 15 patients: 15/100 in the ILOA group, but none in the IEOA and MSA-C subgroups. 14/15 patients had a CANVAS phenotype. Only 1/15 had isolated cerebellar ataxia, but also shorter biallelic expansions. Two RFC1 AAGGG(n) alleles were found in 78% of patients with a CANVAS phenotype. In one post-mortem case, the pathophysiological involvement of cerebellum and medullar posterior columns was found. CONCLUSION Our study confirms the genetic heterogeneity of the CANVAS and that RFC1 repeat expansions should be searched for preferentially in case of unexplained ILOA associated with a sensory neuronopathy, but not particularly in patients classified as MSA-C.
Collapse
Affiliation(s)
- Solveig Montaut
- Department of Neurology, Strasbourg University Hospital, 1 avenue Molière, 67098, Strasbourg, France.
| | - Nadège Diedhiou
- INSERM, U1258/CNRS, UMR7104, Institut de Génétique Et de Biologie Moléculaire Et Cellulaire (IGBMC), Illkirch, France.,University of Strasbourg, Strasbourg, France
| | - Pauline Fahrer
- Department of Neurology, Strasbourg University Hospital, 1 avenue Molière, 67098, Strasbourg, France
| | - Cécilia Marelli
- Expert Centre for Neurogenetic Diseases and Adult Mitochondrial and Metabolic Diseases, Department of Neurology, Montpellier University Hospital, Montpellier, France.,Laboratoire de Génétique de Maladies Rares EA7402, Institut Universitaire de Recherche Clinique, University of Montpellier, Montpellier, France
| | - Benoit Lhermitte
- Inserm U1198 MMDN, University of Montpellier, Montpellier, France
| | - Laura Robelin
- Department of Pathology, Strasbourg University Hospital, Strasbourg, France.,Tumoral Signaling and Therapeutics Targets Team, Laboratory Bioimaging and Pathologies, UMR CNRS 7021, Faculty of Pharmacy, University of Strasbourg, Illkirch, France
| | - Marie Claire Vincent
- Department of Neurology, Strasbourg University Hospital, 1 avenue Molière, 67098, Strasbourg, France
| | - Lucas Corti
- Department of Neurology, Montpellier University Hospital, Montpellier, France
| | - Guillaume Taieb
- Department of Neurology, Montpellier University Hospital, Montpellier, France
| | - Odile Gebus
- Department of Neurology, Strasbourg University Hospital, 1 avenue Molière, 67098, Strasbourg, France
| | - Gabrielle Rudolf
- Department of Neurology, Strasbourg University Hospital, 1 avenue Molière, 67098, Strasbourg, France.,CNRS U 7104-Inserm U1258, Institut de Génétique Et de Biologie Moléculaire Et Cellulaire (IGBMC), Illkirch, France
| | - Julien Tarabeux
- Laboratoire de Diagnostic Génétique, Strasbourg University Hospital, Strasbourg, France
| | - Nicolas Dondaine
- Laboratoire de Diagnostic Génétique, Strasbourg University Hospital, Strasbourg, France
| | - Matthieu Canuet
- Department of Pneumology, Strasbourg University Hospital, Strasbourg, France
| | - Marilyne Almeras
- Palliative Care Department, Strasbourg University Hospital, Strasbourg, France
| | - Mehdi Benkirane
- Laboratoire de Génétique Moléculaire, IURC, Montpellier University Hospital, Montpellier, France.,Equipe Accueil EA7402, University of Montpellier, Montpellier, France
| | - Lise Larrieu
- Laboratoire de Génétique Moléculaire, IURC, Montpellier University Hospital, Montpellier, France.,Equipe Accueil EA7402, University of Montpellier, Montpellier, France
| | - Jean-Baptiste Chanson
- Neuromuscular Referential Center, Department of Neurology, Strasbourg University Hospital, Strasbourg, France
| | - Aleksandra Nadaj-Pakleza
- Neuromuscular Referential Center, Department of Neurology, Strasbourg University Hospital, Strasbourg, France
| | - Andoni Echaniz-Laguna
- Department of Neurology, APHP, French National Reference Center for Rare Neuropathies (NNERF), Bicêtre University Hospital, Le Kremlin Bicêtre, France.,INSERM U1195, Paris-Saclay University, Le Kremlin Bicêtre, France
| | - Cécile Cauquil
- Department of Neurology, APHP, French National Reference Center for Rare Neuropathies (NNERF), Bicêtre University Hospital, Le Kremlin Bicêtre, France
| | - Béatrice Lannes
- Department of Pathology, Strasbourg University Hospital, Strasbourg, France
| | - Jamel Chelly
- CNRS U 7104-Inserm U1258, Institut de Génétique Et de Biologie Moléculaire Et Cellulaire (IGBMC), Illkirch, France.,Laboratoire de Diagnostic Génétique, Strasbourg University Hospital, Strasbourg, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), University of Strasbourg, Strasbourg, France
| | - Mathieu Anheim
- Department of Neurology, Strasbourg University Hospital, 1 avenue Molière, 67098, Strasbourg, France.,INSERM, U1258/CNRS, UMR7104, Institut de Génétique Et de Biologie Moléculaire Et Cellulaire (IGBMC), Illkirch, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), University of Strasbourg, Strasbourg, France
| | - Hélène Puccio
- INSERM, U1258/CNRS, UMR7104, Institut de Génétique Et de Biologie Moléculaire Et Cellulaire (IGBMC), Illkirch, France.,University of Strasbourg, Strasbourg, France
| | - Christine Tranchant
- Department of Neurology, Strasbourg University Hospital, 1 avenue Molière, 67098, Strasbourg, France.,INSERM, U1258/CNRS, UMR7104, Institut de Génétique Et de Biologie Moléculaire Et Cellulaire (IGBMC), Illkirch, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), University of Strasbourg, Strasbourg, France
| |
Collapse
|