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October 22, 2013; 81 (17) Article

SURF1 deficiency causes demyelinating Charcot-Marie-Tooth disease

Andoni Echaniz-Laguna, Daniele Ghezzi, Maïté Chassagne, Martine Mayençon, Sylvie Padet, Laura Melchionda, Isabelle Rouvet, Béatrice Lannes, Dominique Bozon, Philippe Latour, Massimo Zeviani, Bénédicte Mousson de Camaret
First published September 11, 2013, DOI: https://doi.org/10.1212/WNL.0b013e3182a4a518
Andoni Echaniz-Laguna
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Daniele Ghezzi
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Maïté Chassagne
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Martine Mayençon
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Sylvie Padet
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Laura Melchionda
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Isabelle Rouvet
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Béatrice Lannes
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Dominique Bozon
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Philippe Latour
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Massimo Zeviani
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Bénédicte Mousson de Camaret
From the Département de Neurologie (A.E.-L.), Hôpitaux Universitaires, Strasbourg; INSERM U692 (A.E.-L.), Université de Strasbourg, France; Unit of Molecular Neurogenetics (D.G., L.M., M.Z.), Fondazione Istituto Neurologico Carlo Besta, Istituto di Ricovero e Cura a Carattere Scientifico, Milan, Italy; Service des Maladies Héréditaires du Métabolisme (M.C., M.M., S.P., B.M.deC.), Centre de Biotechnologie Cellulaire (I.R.), Unité de Cardiogénétique Moléculaire (D.B.), and Service de Neurobiologie (P.L.), Centre de Biologie et de Pathologie Est, CHU Lyon, Bron, France; and Département d’Anatomopathologie (B.L.), Hôpitaux Universitaires, Strasbourg, France.
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Citation
SURF1 deficiency causes demyelinating Charcot-Marie-Tooth disease
Andoni Echaniz-Laguna, Daniele Ghezzi, Maïté Chassagne, Martine Mayençon, Sylvie Padet, Laura Melchionda, Isabelle Rouvet, Béatrice Lannes, Dominique Bozon, Philippe Latour, Massimo Zeviani, Bénédicte Mousson de Camaret
Neurology Oct 2013, 81 (17) 1523-1530; DOI: 10.1212/WNL.0b013e3182a4a518

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Abstract

Objective: To investigate whether mutations in the SURF1 gene are a cause of Charcot-Marie-Tooth (CMT) disease.

Methods: We describe 2 patients from a consanguineous family with demyelinating autosomal recessive CMT disease (CMT4) associated with the homozygous splice site mutation c.107-2A>G in the SURF1 gene, encoding an assembly factor of the mitochondrial respiratory chain complex IV. This observation led us to hypothesize that mutations in SURF1 might be an unrecognized cause of CMT4, and we investigated SURF1 in a total of 40 unrelated patients with CMT4 after exclusion of mutations in known CMT4 genes. The functional impact of c.107-2A>G on splicing, amount of SURF1 protein, and on complex IV activity and assembly was analyzed.

Results: Another patient with CMT4 was found to harbor 2 additional SURF1 mutations. All 3 patients with SURF1-associated CMT4 presented with severe childhood-onset neuropathy, motor nerve conduction velocities <25 m/s, and lactic acidosis. Two patients had brain MRI abnormalities, including putaminal and periaqueductal lesions, and developed cerebellar ataxia years after polyneuropathy. The c.107-2A>G mutation produced no normally spliced transcript, leading to SURF1 absence. However, complex IV remained partially functional in muscle and fibroblasts.

Conclusions: We found SURF1 mutations in 5% of families (2/41) presenting with CMT4. SURF1 should be systematically screened in patients with childhood-onset severe demyelinating neuropathy and additional features such as lactic acidosis, brain MRI abnormalities, and cerebellar ataxia developing years after polyneuropathy.

GLOSSARY

BNGE=
blue native gel electrophoresis;
bp=
base pair;
cDNA=
complementary DNA;
CK=
creatine kinase;
CMT=
Charcot-Marie-Tooth;
COX=
cytochrome c oxidase;
LS=
Leigh syndrome;
MNCV=
motor nerve conduction velocities;
MRC=
mitochondrial respiratory chain;
RT=
reverse transcription

Footnotes

  • Go to Neurology.org for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Received March 29, 2013.
  • Accepted in final form June 13, 2013.
  • © 2013 American Academy of Neurology
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