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Dubucs C, Aziza J, Sartor A, Heitz F, Sevely A, Sternberg D, Jardel C, Cavallé-Garrido T, Albrecht S, Bernard C, De Bie I, Chassaing N. Severe Antenatal Hypertrophic Cardiomyopathy Secondary to ACAD9-Related Mitochondrial Complex I Deficiency. Mol Syndromol 2023; 14:101-108. [PMID: 37064341 PMCID: PMC10091013 DOI: 10.1159/000526022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 07/12/2022] [Indexed: 11/19/2022] Open
Abstract
Introduction Antenatal presentation of hypertrophic cardiomyopathy (HCM) is rare. We describe familial recurrence of antenatal HCM associated with intrauterine growth restriction and the diagnostic process undertaken. Methods Two pregnancies with antenatal HCM were followed up. Biological assessment including metabolic analyses, genetic analyses, and respiratory chain study was performed. We describe the clinical course of these two pregnancies, antenatal manifestations as well as specific histopathological findings, and review the literature. Results The assessment revealed a deficiency in complex I of the respiratory chain and two likely pathogenic variations in the ACAD9 gene. Discussion and Conclusion Antenatal HCM is rare and a diagnosis is not always made. In pregnancies presenting with cardiomyopathy and intrauterine growth restriction, ACAD9 deficiency should be considered as one of the potential underlying diagnoses, and ACAD9 molecular testing should be included among other prenatal investigations.
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Affiliation(s)
- Charlotte Dubucs
- Département d'Anatomie et de Cytologie Pathologiques, Institut Universitaire du Cancer de Toulouse, Toulouse, France
- Service de Génétique Médicale, CHU Toulouse, Toulouse, France
| | - Jacqueline Aziza
- Département d'Anatomie et de Cytologie Pathologiques, Institut Universitaire du Cancer de Toulouse, Toulouse, France
| | - Agnès Sartor
- Service d'Échographie Prénatale, CHU Toulouse, Toulouse, France
| | - François Heitz
- Service d'Échocardiographie, Clinique Pasteur, Toulouse, France
| | - Annick Sevely
- Service de Neuroradiologie, CHU Toulouse, Toulouse, France
| | - Damien Sternberg
- Service de Biochimie Métabolique, Centre de génétique moléculaire et chromosomique, CHU Pitié-Salpêtrière, AP-HP, Paris, France
| | - Claude Jardel
- Service de Biochimie Métabolique, Centre de génétique moléculaire et chromosomique, CHU Pitié-Salpêtrière, AP-HP, Paris, France
| | - Tiscar Cavallé-Garrido
- Division of Paediatric Cardiology, Department of Paediatrics, Montreal Children's Hospital of the McGill University Health Centre, Montreal, Québec, Canada
| | - Steffen Albrecht
- Department of Pathology, McGill University Health Centre, Montreal, Québec, Canada
| | - Chantal Bernard
- Department of Pathology, McGill University Health Centre, Montreal, Québec, Canada
| | - Isabelle De Bie
- Division of Medical Genetics, Department of Specialized Medicine, McGill University Health Centre, Montreal, Québec, Canada
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2
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Gueguen N, Piarroux J, Sarzi E, Benkirane M, Manes G, Delettre C, Amedro P, Leboucq N, Koenig M, Meyer P, Meunier I, Reynier P, Lenaers G, Roubertie A. Optic neuropathy linked to ACAD9 pathogenic variants: A potentially riboflavin-responsive disorder? Mitochondrion 2021; 59:169-174. [PMID: 34023438 DOI: 10.1016/j.mito.2021.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/19/2021] [Accepted: 05/19/2021] [Indexed: 12/14/2022]
Abstract
Mitochondrial complex I (CI) deficiencies (OMIM 252010) are the commonest inherited mitochondrial disorders in children. Acyl-CoA dehydrogenase 9 (ACAD9) is a flavoenzyme involved chiefly in CI assembly and possibly in fatty acid oxidation. Biallelic pathogenic variants result in CI dysfunction, with a phenotype ranging from early onset and sometimes fatal mitochondrial encephalopathy with lactic acidosis to late-onset exercise intolerance. Cardiomyopathy is often associated. We report a patient with childhood-onset optic and peripheral neuropathy without cardiac involvement, related to CI deficiency. Genetic analysis revealed compound heterozygous pathogenic variants in ACAD9, expanding the clinical spectrum associated to ACAD9 mutations. Importantly, riboflavin treatment (15 mg/kg/day) improved long-distance visual acuity and demonstrated significant rescue of CI activity in vitro.
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Affiliation(s)
- Naig Gueguen
- Department of Biochemistry and Molecular Biology, CHU Angers, 49933 Angers, France; University of Angers, Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 49933 Angers, France
| | - Julie Piarroux
- CHU Montpellier, Département de Neuropédiatrie, Montpellier, France
| | - Emmanuelle Sarzi
- NeuroMyoGene Institute-UCBL/CNRS UMR5310/INSERM U1217-Lyon, France
| | - Mehdi Benkirane
- PhyMedExp, CNRS, INSERM, University of Montpellier, Montpellier, France; Laboratoire de Génétique Moléculaire, Institut Universitaire de Recherche Clinique, CHU de Montpellier, France
| | - Gael Manes
- INM, University Montpellier, INSERM, Montpellier, France
| | | | - Pascal Amedro
- PhyMedExp, CNRS, INSERM, University of Montpellier, Montpellier, France; Pediatric and Adult Congenital Cardiology Department, M3C Rare Cardiac Disease Reference Center, CHU Montpellier, France
| | - Nicolas Leboucq
- Département de Neuroradiologie, CHU Montpellier, Montpellier, France
| | - Michel Koenig
- PhyMedExp, CNRS, INSERM, University of Montpellier, Montpellier, France; Laboratoire de Génétique Moléculaire, Institut Universitaire de Recherche Clinique, CHU de Montpellier, France
| | - Pierre Meyer
- CHU Montpellier, Département de Neuropédiatrie, Montpellier, France; PhyMedExp, CNRS, INSERM, University of Montpellier, Montpellier, France
| | - Isabelle Meunier
- National Center in Rare Diseases, Genetics of Sensory Diseases, University Hospital, Montpellier, France
| | - Pascal Reynier
- Department of Biochemistry and Molecular Biology, CHU Angers, 49933 Angers, France; University of Angers, Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 49933 Angers, France
| | - Guy Lenaers
- University of Angers, Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, 49933 Angers, France
| | - Agathe Roubertie
- CHU Montpellier, Département de Neuropédiatrie, Montpellier, France; INM, University Montpellier, INSERM, Montpellier, France; National Center in Rare Diseases, Genetics of Sensory Diseases, University Hospital, Montpellier, France.
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3
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Alstrup M, Vogel I, Sandager P, Blechingberg J, Becher N, Østergaard E. A novel homozygous variant in C1QBP causes severe IUGR, edema, and cardiomyopathy in two fetuses. JIMD Rep 2021; 59:20-25. [PMID: 33977026 PMCID: PMC8100402 DOI: 10.1002/jmd2.12209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 11/16/2022] Open
Abstract
The C1QBP protein (complement component 1 Q subcomponent-binding protein), encoded by the C1QBP gene, is a multifunctional protein predominantly localized in the mitochondrial matrix. Biallelic variants have previously been shown to give rise to combined respiratory-chain deficiencies with variable phenotypic presentation, severity, and age at onset, from intrauterine with a mostly lethal course, to a late-onset mild myopathy. We present two fetuses, one male and one female, of first-cousin parents, with severe intrauterine growth retardation, oligo/anhydramnios, edema, and cardiomyopathy as the most prominent prenatal symptoms. Both fetuses showed no copy number variants by chromosome microarray analysis. Analysis of a fibroblast culture from one of the fetuses showed deficiency of respiratory chain complex IV, and using exome sequencing, we identified homozygosity for a novel variant in C1QBP in both fetuses. To our knowledge, only six patients with pathogenic variants in C1QBP have been reported previously and with this report, we add a novel pathogenic variant in C1QBP found in two related fetuses.
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Affiliation(s)
- Morten Alstrup
- Department of Clinical GeneticsCopenhagen University Hospital RigshospitaletCopenhagenDenmark
| | - Ida Vogel
- Center for Fetal Diagnostics, Department of Clinical MedicineAarhus University HospitalAarhusDenmark
- Department of Clinical GeneticsAarhus University HospitalAarhusDenmark
| | - Puk Sandager
- Center for Fetal Diagnostics, Department of Clinical MedicineAarhus University HospitalAarhusDenmark
- Department of Obstetrics and GynecologyAarhus University HospitalAarhusDenmark
| | | | - Naja Becher
- Center for Fetal Diagnostics, Department of Clinical MedicineAarhus University HospitalAarhusDenmark
- Department of Clinical GeneticsAarhus University HospitalAarhusDenmark
| | - Elsebet Østergaard
- Department of Clinical GeneticsCopenhagen University Hospital RigshospitaletCopenhagenDenmark
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4
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Bayona-Bafaluy MP, Iglesias E, López-Gallardo E, Emperador S, Pacheu-Grau D, Labarta L, Montoya J, Ruiz-Pesini E. Genetic aspects of the oxidative phosphorylation dysfunction in dilated cardiomyopathy. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2020; 786:108334. [PMID: 33339579 DOI: 10.1016/j.mrrev.2020.108334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 12/27/2022]
Abstract
Dilated cardiomyopathy is a frequent and extremely heterogeneous medical condition. Deficits in the oxidative phosphorylation system have been described in patients suffering from dilated cardiomyopathy. Hence, mutations in proteins related to this biochemical pathway could be etiological factors for some of these patients. Here, we review the clinical phenotypes of patients harboring pathological mutations in genes related to the oxidative phosphorylation system, either encoded in the mitochondrial or in the nuclear genome, presenting with dilated cardiomyopathy. In addition to the clinical heterogeneity of these patients, the large genetic heterogeneity has contributed to an improper allocation of pathogenicity for many candidate mutations. We suggest criteria to avoid incorrect assignment of pathogenicity to newly found mutations and discuss possible therapies targeting the oxidative phosphorylation function.
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Affiliation(s)
- M Pilar Bayona-Bafaluy
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - Eldris Iglesias
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain.
| | - Ester López-Gallardo
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - Sonia Emperador
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - David Pacheu-Grau
- Department of Cellular Biochemistry, University Medical Center, Georg-August University,Humboldtalle, 23., 37073, Göttingen, Germany.
| | - Lorenzo Labarta
- Unidad de Cuidados Intensivos, Hospital San Jorge, Av. Martínez de Velasco, 36., 22004, Huesca, Spain.
| | - Julio Montoya
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - Eduardo Ruiz-Pesini
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza. C/ Miguel Servet, 177. 50013, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13., 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Red de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain; Fundación ARAID, Av. de Ranillas, 1-D., 50018, Zaragoza, Spain.
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5
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Human diseases associated with defects in assembly of OXPHOS complexes. Essays Biochem 2018; 62:271-286. [PMID: 30030362 PMCID: PMC6056716 DOI: 10.1042/ebc20170099] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 04/13/2018] [Accepted: 05/02/2018] [Indexed: 02/02/2023]
Abstract
The structural biogenesis and functional proficiency of the multiheteromeric complexes forming the mitochondrial oxidative phosphorylation system (OXPHOS) require the concerted action of a number of chaperones and other assembly factors, most of which are specific for each complex. Mutations in a large number of these assembly factors are responsible for mitochondrial disorders, in most cases of infantile onset, typically characterized by biochemical defects of single specific complexes. In fact, pathogenic mutations in complex-specific assembly factors outnumber, in many cases, the repertoire of mutations found in structural subunits of specific complexes. The identification of patients with specific defects in assembly factors has provided an important contribution to the nosological characterization of mitochondrial disorders, and has also been a crucial means to identify a huge number of these proteins in humans, which play an essential role in mitochondrial bioenergetics. The wide use of next generation sequencing (NGS) has led to and will allow the identifcation of additional components of the assembly machinery of individual complexes, mutations of which are responsible for human disorders. The functional studies on patients' specimens, together with the creation and characterization of in vivo models, are fundamental to better understand the mechanisms of each of them. A new chapter in this field will be, in the near future, the discovery of mechanisms and actions underlying the formation of supercomplexes, molecular structures formed by the physical, and possibly functional, interaction of some of the individual respiratory complexes, particularly complex I (CI), III (CIII), and IV (CIV).
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6
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Repp BM, Mastantuono E, Alston CL, Schiff M, Haack TB, Rötig A, Ardissone A, Lombès A, Catarino CB, Diodato D, Schottmann G, Poulton J, Burlina A, Jonckheere A, Munnich A, Rolinski B, Ghezzi D, Rokicki D, Wellesley D, Martinelli D, Wenhong D, Lamantea E, Ostergaard E, Pronicka E, Pierre G, Smeets HJM, Wittig I, Scurr I, de Coo IFM, Moroni I, Smet J, Mayr JA, Dai L, de Meirleir L, Schuelke M, Zeviani M, Morscher RJ, McFarland R, Seneca S, Klopstock T, Meitinger T, Wieland T, Strom TM, Herberg U, Ahting U, Sperl W, Nassogne MC, Ling H, Fang F, Freisinger P, Van Coster R, Strecker V, Taylor RW, Häberle J, Vockley J, Prokisch H, Wortmann S. Clinical, biochemical and genetic spectrum of 70 patients with ACAD9 deficiency: is riboflavin supplementation effective? Orphanet J Rare Dis 2018; 13:120. [PMID: 30025539 PMCID: PMC6053715 DOI: 10.1186/s13023-018-0784-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 03/09/2018] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Mitochondrial acyl-CoA dehydrogenase family member 9 (ACAD9) is essential for the assembly of mitochondrial respiratory chain complex I. Disease causing biallelic variants in ACAD9 have been reported in individuals presenting with lactic acidosis and cardiomyopathy. RESULTS We describe the genetic, clinical and biochemical findings in a cohort of 70 patients, of whom 29 previously unpublished. We found 34 known and 18 previously unreported variants in ACAD9. No patients harbored biallelic loss of function mutations, indicating that this combination is unlikely to be compatible with life. Causal pathogenic variants were distributed throughout the entire gene, and there was no obvious genotype-phenotype correlation. Most of the patients presented in the first year of life. For this subgroup the survival was poor (50% not surviving the first 2 years) comparing to patients with a later presentation (more than 90% surviving 10 years). The most common clinical findings were cardiomyopathy (85%), muscular weakness (75%) and exercise intolerance (72%). Interestingly, severe intellectual deficits were only reported in one patient and severe developmental delays in four patients. More than 70% of the patients were able to perform the same activities of daily living when compared to peers. CONCLUSIONS Our data show that riboflavin treatment improves complex I activity in the majority of patient-derived fibroblasts tested. This effect was also reported for most of the treated patients and is mirrored in the survival data. In the patient group with disease-onset below 1 year of age, we observed a statistically-significant better survival for patients treated with riboflavin.
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Affiliation(s)
- Birgit M. Repp
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany ,0000 0004 0483 2525grid.4567.0Institute of Human Genetics, Helmholtz Zentrum München, Munich, Germany
| | - Elisa Mastantuono
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany ,0000 0004 0483 2525grid.4567.0Institute of Human Genetics, Helmholtz Zentrum München, Munich, Germany
| | - Charlotte L. Alston
- 0000 0001 0462 7212grid.1006.7Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK
| | - Manuel Schiff
- 0000 0001 2217 0017grid.7452.4UMR1141, PROTECT, INSERM, Université Paris Diderot, Sorbonne Paris Cité, 75019 Paris, France ,0000 0004 1937 0589grid.413235.2Reference Center for Inborn Errors of Metabolism, Robert Debré University Hospital, APHP, 75019 Paris, France
| | - Tobias B. Haack
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany ,0000 0001 2190 1447grid.10392.39Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Agnes Rötig
- 0000 0001 2188 0914grid.10992.33UMR1163, Université Paris Descartes, Sorbonne Paris Cité, Institut IMAGINE, 24 Boulevard du Montparnasse, 75015 Paris, France
| | - Anna Ardissone
- 0000 0001 0707 5492grid.417894.7Unit of Molecular Neurogenetics, Fondazione Istituto Neurologico “Carlo Besta”, Milan, Italy ,0000 0001 0707 5492grid.417894.7Child Neurology, Fondazione IRCCS Istituto Neurologico “Carlo Besta”, Milan, Italy ,0000 0001 2174 1754grid.7563.7Department of Molecular and Translational Medicine DIMET, University of Milan-Bicocca, Milan, Italy
| | - Anne Lombès
- 0000 0004 0643 431Xgrid.462098.1INSERM U1016, Institut Cochin, Paris, France
| | - Claudia B. Catarino
- 0000 0004 1936 973Xgrid.5252.0Department of Neurology, Friedrich-Baur-Institute, University Hospital of the Ludwig-Maximilians-Universität München, Munich, Germany
| | - Daria Diodato
- 0000 0001 0727 6809grid.414125.7Muscular and Neurodegenerative Disorders Unit, Bambino Gesu´ Children’s Hospital, IRCCS, Rome, Italy
| | - Gudrun Schottmann
- NeuroCure Clinical Research Center (NCRC), Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Joanna Poulton
- Nuffield Department of Women’s and Reproductive Health, University of Oxford, The Women’s Centre, John Radcliffe Hospital, Oxford, UK
| | - Alberto Burlina
- 0000 0004 1760 2630grid.411474.3Division of Inherited Metabolic Diseases, Department of Paediatrics, University Hospital of Padova, Padova, Italy
| | - An Jonckheere
- 0000 0004 0626 3418grid.411414.5Department of Pediatrics, Antwerp University Hospital, Edegem, Belgium
| | - Arnold Munnich
- 0000 0001 2188 0914grid.10992.33UMR1163, Université Paris Descartes, Sorbonne Paris Cité, Institut IMAGINE, 24 Boulevard du Montparnasse, 75015 Paris, France
| | | | - Daniele Ghezzi
- 0000 0001 0707 5492grid.417894.7Unit of Molecular Neurogenetics, Fondazione Istituto Neurologico “Carlo Besta”, Milan, Italy ,0000 0004 1757 2822grid.4708.bDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Dariusz Rokicki
- 0000 0001 2232 2498grid.413923.eDepartment of Pediatrics, Nutrition and Metabolic Diseases, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Diana Wellesley
- 0000 0004 0641 6277grid.415216.5Wessex Clinical Genetics Service, Princess Anne Hospital, Southampton, UK
| | - Diego Martinelli
- 0000 0001 0727 6809grid.414125.7Genetics and Rare Diseases Research Division, Unit of Metabolism, Bambino Gesù Children’s Research Hospital, Rome, Italy
| | - Ding Wenhong
- Department of Pediatric cardiology, Beijing Anzhe Hospital, Captital Medical University, Beijing, China
| | - Eleonora Lamantea
- 0000 0001 0707 5492grid.417894.7Unit of Molecular Neurogenetics, Fondazione Istituto Neurologico “Carlo Besta”, Milan, Italy
| | - Elsebet Ostergaard
- grid.475435.4Department of Clinical Genetics, Copenhagen University Hospital Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Ewa Pronicka
- 0000 0001 2232 2498grid.413923.eDepartment of Pediatrics, Nutrition and Metabolic Diseases, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Germaine Pierre
- 0000 0004 0399 4960grid.415172.4South West Regional Metabolic Department, Bristol Royal Hospital for Children, Bristol, BS1 3NU UK
| | - Hubert J. M. Smeets
- 0000 0004 0480 1382grid.412966.eDepartment of Genetics and Cell Biology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Ilka Wittig
- 0000 0004 1936 9721grid.7839.5Functional Proteomics, SFB 815 Core Unit, Faculty of Medicine, Goethe-University, Frankfurt am Main, Germany
| | - Ingrid Scurr
- grid.416544.6Department of Clinical Genetics, St Michael’s Hospital, Bristol, UK
| | - Irenaeus F. M. de Coo
- 000000040459992Xgrid.5645.2Department of Neurology, Erasmus MC, Rotterdam, Netherlands ,0000 0004 0480 1382grid.412966.eDepartment of Clinical Genetics, Research School GROW, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Isabella Moroni
- 0000 0001 0707 5492grid.417894.7Child Neurology, Fondazione IRCCS Istituto Neurologico “Carlo Besta”, Milan, Italy
| | - Joél Smet
- 0000 0004 0626 3303grid.410566.0Department of Pediatric Neurology and Metabolism, Ghent University Hospital, De Pintelaan, Ghent, Belgium
| | - Johannes A. Mayr
- 0000 0000 9803 4313grid.415376.2Department of Pediatrics, Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria
| | - Lifang Dai
- 0000 0004 0369 153Xgrid.24696.3fDepartment of Neurology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Linda de Meirleir
- 0000 0001 2290 8069grid.8767.eResearch Group Reproduction and Genetics, Vrije Universiteit Brussel, Brussels, Belgium ,0000 0001 2290 8069grid.8767.eDepartment of Pediatric Neurology, UZ Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Markus Schuelke
- NeuroCure Clinical Research Center (NCRC), Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Massimo Zeviani
- 0000 0004 0427 1414grid.462573.1MRC-Mitochondrial Biology Unit, Cambridge, Cambridgeshire UK
| | - Raphael J. Morscher
- 0000 0000 9803 4313grid.415376.2Department of Pediatrics, Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria ,0000 0000 8853 2677grid.5361.1Division of Human Genetics, Medical University Innsbruck, Innsbruck, Austria
| | - Robert McFarland
- 0000 0001 0462 7212grid.1006.7Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK
| | - Sara Seneca
- 0000 0001 2290 8069grid.8767.eCenter for Medical Genetics, UZ Brussel, Research Group Reproduction and Genetics (REGE), Vrije Universiteit Brussel, Brussels, Belgium
| | - Thomas Klopstock
- 0000 0004 1936 973Xgrid.5252.0Department of Neurology, Friedrich-Baur-Institute, University Hospital of the Ludwig-Maximilians-Universität München, Munich, Germany ,0000 0004 0438 0426grid.424247.3German Center for Neurodegenerative Diseases (DZNE), Munich, Germany ,grid.452617.3Munich Cluster of Systems Neurology (SyNergy), Munich, Germany
| | - Thomas Meitinger
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany ,0000 0004 0483 2525grid.4567.0Institute of Human Genetics, Helmholtz Zentrum München, Munich, Germany ,grid.452617.3Munich Cluster of Systems Neurology (SyNergy), Munich, Germany ,0000 0004 5937 5237grid.452396.fDZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Thomas Wieland
- 0000 0004 0483 2525grid.4567.0Institute of Human Genetics, Helmholtz Zentrum München, Munich, Germany
| | - Tim M. Strom
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany ,0000 0004 0483 2525grid.4567.0Institute of Human Genetics, Helmholtz Zentrum München, Munich, Germany
| | - Ulrike Herberg
- 0000 0001 2240 3300grid.10388.32Department of Pediatric Cardiology, University of Bonn, Bonn, Germany
| | - Uwe Ahting
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany
| | - Wolfgang Sperl
- 0000 0000 9803 4313grid.415376.2Department of Pediatrics, Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria
| | - Marie-Cecile Nassogne
- 0000 0004 0461 6320grid.48769.34Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Han Ling
- Department of Pediatric cardiology, Beijing Anzhe Hospital, Captital Medical University, Beijing, China
| | - Fang Fang
- 0000 0004 0369 153Xgrid.24696.3fDepartment of Neurology, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Peter Freisinger
- Department of Pediatrics, Klinikum Reutlingen, Reutlingen, Germany
| | - Rudy Van Coster
- 0000 0004 0626 3303grid.410566.0Department of Pediatric Neurology and Metabolism, Ghent University Hospital, De Pintelaan, Ghent, Belgium
| | - Valentina Strecker
- 0000 0004 1936 9721grid.7839.5Functional Proteomics, SFB 815 Core Unit, Faculty of Medicine, Goethe-University, Frankfurt am Main, Germany
| | - Robert W. Taylor
- 0000 0001 0462 7212grid.1006.7Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK
| | - Johannes Häberle
- 0000 0001 0726 4330grid.412341.1Division of Metabolism and Children’s Research Center, University Children’s Hospital, Zurich, Switzerland
| | - Jerry Vockley
- Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh, Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, USA
| | - Holger Prokisch
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany ,0000 0004 0483 2525grid.4567.0Institute of Human Genetics, Helmholtz Zentrum München, Munich, Germany
| | - Saskia Wortmann
- 0000000123222966grid.6936.aInstitute of Human Genetics, Technische Universität München, Trogerstrasse 32, 81675 Munich, Germany ,0000 0004 0483 2525grid.4567.0Institute of Human Genetics, Helmholtz Zentrum München, Munich, Germany ,0000 0000 9803 4313grid.415376.2Department of Pediatrics, Salzburger Landeskliniken (SALK) and Paracelsus Medical University (PMU), Salzburg, Austria
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7
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Leipnitz G, Mohsen AW, Karunanidhi A, Seminotti B, Roginskaya VY, Markantone DM, Grings M, Mihalik SJ, Wipf P, Van Houten B, Vockley J. Evaluation of mitochondrial bioenergetics, dynamics, endoplasmic reticulum-mitochondria crosstalk, and reactive oxygen species in fibroblasts from patients with complex I deficiency. Sci Rep 2018; 8:1165. [PMID: 29348607 PMCID: PMC5773529 DOI: 10.1038/s41598-018-19543-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 01/03/2018] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial complex I (CI) deficiency is the most frequent cause of oxidative phosphorylation (OXPHOS) disorders in humans. In order to benchmark the effects of CI deficiency on mitochondrial bioenergetics and dynamics, respiratory chain (RC) and endoplasmic reticulum (ER)-mitochondria communication, and superoxide production, fibroblasts from patients with mutations in the ND6, NDUFV1 or ACAD9 genes were analyzed. Fatty acid metabolism, basal and maximal respiration, mitochondrial membrane potential, and ATP levels were decreased. Changes in proteins involved in mitochondrial dynamics were detected in various combinations in each cell line, while variable changes in RC components were observed. ACAD9 deficient cells exhibited an increase in RC complex subunits and DDIT3, an ER stress marker. The level of proteins involved in ER-mitochondria communication was decreased in ND6 and ACAD9 deficient cells. |ΔΨ| and cell viability were further decreased in all cell lines. These findings suggest that disruption of mitochondrial bioenergetics and dynamics, ER-mitochondria crosstalk, and increased superoxide contribute to the pathophysiology in patients with ACAD9 deficiency. Furthermore, treatment of ACAD9 deficient cells with JP4-039, a novel mitochondria-targeted reactive oxygen species, electron and radical scavenger, decreased superoxide level and increased basal and maximal respiratory rate, identifying a potential therapeutic intervention opportunity in CI deficiency.
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Affiliation(s)
- Guilhian Leipnitz
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA.,Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil
| | - Al-Walid Mohsen
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA
| | - Anuradha Karunanidhi
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA
| | - Bianca Seminotti
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA
| | - Vera Y Roginskaya
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Desiree M Markantone
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA
| | - Mateus Grings
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA.,Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil
| | - Stephanie J Mihalik
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Bennett Van Houten
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Jerry Vockley
- Division Medical Genetics, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, 15224, USA. .,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
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8
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Finsterer J, Zarrouk-Mahjoub S. Mitochondrial multiorgan disorder syndrome (MIMODS) due to a compound heterozygous mutation in the ACAD9 gene. Mol Genet Metab Rep 2017; 13:31-32. [PMID: 28794992 PMCID: PMC5537447 DOI: 10.1016/j.ymgmr.2017.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 11/29/2022] Open
Affiliation(s)
| | - Sinda Zarrouk-Mahjoub
- University of Tunis El Manar and Genomics Platform, Pasteur Institute of Tunis, Tunisia
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9
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Advances in the Understanding and Treatment of Mitochondrial Fatty Acid Oxidation Disorders. CURRENT GENETIC MEDICINE REPORTS 2017; 5:132-142. [PMID: 29177110 DOI: 10.1007/s40142-017-0125-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Purpose of review This review focuses on advances made in the past three years with regards to understanding the mitochondrial fatty acid oxidation (FAO) pathway, the pathophysiological ramifications of genetic lesions in FAO enzymes, and emerging therapies for FAO disorders. Recent findings FAO has now been recognized to play a key energetic role in pulmonary surfactant synthesis, T-cell differentiation and memory, and the response of the proximal tubule to kidney injury. Patients with FAO disorders may face defects in these cellular systems as they age. Aspirin, statins, and nutritional supplements modulate the rate of FAO under normal conditions and could be risk factors for triggering symptoms in patients with FAO disorders. Patients have been identified with mutations in the ACAD9 and ECHS1 genes, which may represent new FAO disorders. New interventions for long-chain FAODs are in clinical trials. Finally, post-translational modifications that regulate fatty acid oxidation protein activities have been characterized that represent important new therapeutic targets. Summary Recent research has led to a deeper understanding of FAO. New therapeutic avenues are being pursued that may ultimately cause a paradigm shift for patient care.
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Dewulf JP, Barrea C, Vincent MF, De Laet C, Van Coster R, Seneca S, Marie S, Nassogne MC. Evidence of a wide spectrum of cardiac involvement due to ACAD9 mutations: Report on nine patients. Mol Genet Metab 2016; 118:185-189. [PMID: 27233227 DOI: 10.1016/j.ymgme.2016.05.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/08/2016] [Accepted: 05/08/2016] [Indexed: 11/17/2022]
Abstract
Acyl-CoA dehydrogenase 9 (ACAD9) is a mitochondrial protein involved in oxidative phosphorylation complex I biogenesis. This protein also exhibits acyl-CoA dehydrogenase (ACAD) activity. ACAD9-mutated patients have been reported to suffer from primarily heart, muscle, liver, and nervous system disorders. ACAD9 mutation is suspected in cases of elevated lactic acid levels combined with complex I deficiency, and confirmed by ACAD9 gene analysis. At least 18 ACAD9-mutated patients have previously been reported, usually displaying severe cardiac involvement. We retrospectively studied nine additional patients from three unrelated families with a wide spectrum of cardiac involvement between the families as well as the patients from the same families. All patients exhibited elevated lactate levels. Deleterious ACAD9 mutations were identified in all patients except one for whom it was not possible to recover DNA. To our knowledge, this is one of the first reports on isolated mild ventricular hypertrophy due to ACAD9 mutation in a family with moderate symptoms during adolescence. This report also confirms that dilated cardiomyopathy may occur in conjunction with ACAD9 mutation and that some patients may respond clinically to riboflavin treatment. Of note, several patients suffered from patent ductus arteriosus (PDA), with one exhibiting a complex congenital heart defect. It is yet unknown whether these cardiac manifestations were related to ACAD9 mutation. In conclusion, this disorder should be suspected in the presence of lactic acidosis, complex I deficiency, and any cardiac involvement, even mild.
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Affiliation(s)
- Joseph P Dewulf
- Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Service de Biochimie génétique, B-1200 Brussels, Belgium
| | - Catherine Barrea
- Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Service de Cardiologie Pédiatrique, B-1200 Brussels, Belgium
| | - Marie-Françoise Vincent
- Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Service de Biochimie génétique, B-1200 Brussels, Belgium
| | - Corinne De Laet
- Nutrition and Metabolism Unit, Hôpital Universitaire des Enfants Reine Fabiola, Université Libre de Bruxelles, Brussels, Belgium
| | - Rudy Van Coster
- Pediatric Neurology, University Hospital, De Pintelaan 185, B-9000 Gent, Belgium
| | - Sara Seneca
- Center for Medical Genetics, UZ Brussel, Research Group for Reproduction and Genetics (VUB), Laarbeeklaan 101, B-1090 Brussels, Belgium
| | - Sandrine Marie
- Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Service de Biochimie génétique, B-1200 Brussels, Belgium
| | - Marie-Cécile Nassogne
- Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Service de Neurologie pédiatrique, B-1200 Brussels, Belgium.
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