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Montealegre S, Lebigot E, Debruge H, Romero N, Héron B, Gaignard P, Legendre A, Imbard A, Gobin S, Lacène E, Nusbaum P, Hubas A, Desguerre I, Servais A, Laforêt P, van Endert P, Authier FJ, Gitiaux C, de Lonlay P. FDX2 and ISCU Gene Variations Lead to Rhabdomyolysis With Distinct Severity and Iron Regulation. Neurol Genet 2022; 8:e648. [PMID: 35079622 PMCID: PMC8771665 DOI: 10.1212/nxg.0000000000000648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 10/18/2021] [Indexed: 01/04/2023]
Abstract
Background and Objectives To determine common clinical and biological traits in 2 individuals with
variants in ISCU and FDX2, displaying
severe and recurrent rhabdomyolyses and lactic acidosis. Methods We performed a clinical characterization of 2 distinct individuals with
biallelic ISCU or FDX2 variants from 2
separate families and a biological characterization with muscle and cells
from those patients. Results The individual with FDX2 variants was clinically more
affected than the individual with ISCU variants. Affected
FDX2 individual fibroblasts and myoblasts showed reduced oxygen consumption
rates and mitochondrial complex I and PDHc activities, associated with high
levels of blood FGF21. ISCU individual fibroblasts showed no oxidative
phosphorylation deficiency and moderate increase of blood FGF21 levels
relative to controls. The severity of the FDX2 individual was not due to
dysfunctional autophagy. Iron was excessively accumulated in ISCU-deficient
skeletal muscle, which was accompanied by a downregulation of
IRP1 and mitoferrin2 genes and an
upregulation of frataxin (FXN) gene expression. This
excessive iron accumulation was absent from FDX2 affected muscle and could
not be correlated with variable gene expression in muscle cells. Discussion We conclude that FDX2 and ISCU variants
result in a similar muscle phenotype, that differ in severity and skeletal
muscle iron accumulation. ISCU and FDX2 are not involved in mitochondrial
iron influx contrary to frataxin.
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Affiliation(s)
- Sebastian Montealegre
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Elise Lebigot
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Hugo Debruge
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Norma Romero
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Bénédicte Héron
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Pauline Gaignard
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Antoine Legendre
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Apolline Imbard
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Stéphanie Gobin
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Emmanuelle Lacène
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Patrick Nusbaum
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Arnaud Hubas
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Isabelle Desguerre
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Aude Servais
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Pascal Laforêt
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Peter van Endert
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - François Jérome Authier
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Cyril Gitiaux
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
| | - Pascale de Lonlay
- Inserm U1151 (S.M., H.D., P.E., P.d.L.), Institut Necker Enfants-Malades, Paris; Reference Center of Inherited Metabolic Diseases (S.M., A.I., A.S., P.d.L.), Necker-Enfants-Malades University Hospital, APHP, Imagine Institute, Paris University, Filière G2M; Biochemistry Laboratory (E. Lebigot, P.G.), Filière G2M, Bicêtre Hospital, APHP Paris Saclay, Le Kremlin Bicêtre; Sorbonne Universié (E. Lacène), UPMC, INSERM UMR974, Center for Research in Myology, Neuromuscular Morphology Unit, Myology Institute, AP-HP, East-Paris Reference Center of Neuromuscular Diseases, GHU Pitié-Salpêtrière; Neurology Unit (N.R., B.H.), Trousseau Hospital, APHP, Filière G2M; M3C-Necker (A.L.), Congenital and Pediatric Cardiology, Hôpital Universitaire Necker-Enfants Malades; Biochemistry Department (A.I.), Necker-Enfants-Malades University Hospital, APHP, Paris University; Genetics Department (S.G.), Necker-Enfants-Malades University Hospital, APHP; Genetics and Molecular Biology (P.N., A.H.), Laboratoire de Culture Cellulaire, Hôpital Cochin, Paris; Reference Center of Neuromuscular Diseases (I.D., C.G.), Necker-Enfants-Malades University Hospital, APHP, Filière Filnemus; Adult Nephrology & Transplantation (A.S.), Necker-Enfants-Malades University Hospital, APHP, Inserm U1163, Imagine Institute, Paris Descartes University; Department of Neurology (P.L.), Raymond-Poincaré Hospital, Garches, and Inserm U1179 Versailles Saint-Quentin-en-Yvelines University, Montigny-le-Bretonneux; and Reference Center for Neuromuscular Disorders (F.J.A., C.G.), Department de Pathologie, Henri Mondor Hospital, APHP, IMRB U955, Faculty of Medicine, Creteil, France
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19
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Ahmed A, Wang M, Bergant G, Maroofian R, Zhao R, Alfadhel M, Nashabat M, AlRifai MT, Eyaid W, Alswaid A, Beetz C, Qin Y, Zhu T, Tian Q, Xia L, Wu H, Shen L, Dong S, Yang X, Liu C, Ma L, Zhang Q, Khan R, Shah AA, Guo J, Tang B, Leonardis L, Writzl K, Peterlin B, Guo H, Malik S, Xia K, Hu Z. Biallelic loss-of-function variants in NEMF cause central nervous system impairment and axonal polyneuropathy. Hum Genet 2021; 140:579-592. [PMID: 33048237 DOI: 10.1007/s00439-020-02226-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/28/2020] [Indexed: 12/17/2022]
Abstract
We aimed to detect the causative gene in five unrelated families with recessive inheritance pattern neurological disorders involving the central nervous system, and the potential function of the NEMF gene in the central nervous system. Exome sequencing (ES) was applied to all families and linkage analysis was performed on family 1. A minigene assay was used to validate the splicing effect of the relevant discovered variants. Immunofluorescence (IF) experiment was performed to investigate the role of the causative gene in neuron development. The large consanguineous family confirms the phenotype-causative relationship with homozygous frameshift variant (NM_004713.6:c.2618del) as revealed by ES. Linkage analysis of the family showed a significant single-point LOD of 4.5 locus. Through collaboration in GeneMatcher, four additional unrelated families' likely pathogenic NEMF variants for a spectrum of central neurological disorders, two homozygous splice-site variants (NM_004713.6:c.574+1G>T and NM_004713.6:c.807-2A>C) and a homozygous frameshift variant (NM_004713.6: c.1234_1235insC) were subsequently identified and segregated with all affected individuals. We further revealed that knockdown (KD) of Nemf leads to impairment of axonal outgrowth and synapse development in cultured mouse primary cortical neurons. Our study demonstrates that disease-causing biallelic NEMF variants result in central nervous system impairment and other variable features. NEMF is an important player in mammalian neuron development.
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Affiliation(s)
- Ashfaque Ahmed
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Meng Wang
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Gaber Bergant
- Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia.
| | - Reza Maroofian
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Rongjuan Zhao
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Majid Alfadhel
- Division of Genetics, Department of Pediatrics, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
- Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
| | - Marwan Nashabat
- Division of Genetics, Department of Pediatrics, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
- Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
| | - Muhammad Talal AlRifai
- Division of Genetics, Department of Pediatrics, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
| | - Wafaa Eyaid
- Medical Genomics Research Department, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center (KAIMRC), King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia
- Genetics Division, Department of Pediatrics, King Abdullah International Medical Research Centre (KAIMRC), King Saud Bin Abdulaziz University for Health Science, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs (MNGHA), Riyadh, Saudi Arabia
| | | | | | - Yan Qin
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Tengfei Zhu
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Qi Tian
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Lu Xia
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Huidan Wu
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Lu Shen
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Shanshan Dong
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Xinyi Yang
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Cenying Liu
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Linya Ma
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Qiumeng Zhang
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Rizwan Khan
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Abid Ali Shah
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Jifeng Guo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Central South University, Changsha, 410008, Hunan, China
| | - Beisha Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Central South University, Changsha, 410008, Hunan, China
| | - Lea Leonardis
- Institute of Clinical Neurophysiology, University Medical Centre Ljubljana, Ljubljana, Slovenia
- Department of Neurology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Karin Writzl
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Borut Peterlin
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Hui Guo
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Animal Models for Human Diseases, Changsha, Hunan, China
| | - Sajid Malik
- Human Genetics Program, Department of Animal Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
| | - Kun Xia
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China.
- CAS Center for Excellence in Brain Science and Intelligences Technology (CEBSIT), Chinese Academy of Sciences, Shanghai, China.
- Hunan Key Laboratory of Molecular Precisional Medicine, Central South University, Changsha, China.
| | - Zhengmao Hu
- Center for Medical Genetics and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China.
- Hunan Key Laboratory of Animal Models for Human Diseases, Changsha, Hunan, China.
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