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December 2020; 6 (6) ArticleOpen Access

Practical guidelines to manage discordant situations of SMN2 copy number in patients with spinal muscular atrophy

Ivon Cuscó, Sara Bernal, Laura Blasco-Pérez, Maite Calucho, Laura Alias, Pablo Fuentes-Prior, Eduardo F. Tizzano
First published November 11, 2020, DOI: https://doi.org/10.1212/NXG.0000000000000530
Ivon Cuscó
From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Sara Bernal
From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Laura Blasco-Pérez
From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Maite Calucho
From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Laura Alias
From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Pablo Fuentes-Prior
From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Eduardo F. Tizzano
From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Citation
Practical guidelines to manage discordant situations of SMN2 copy number in patients with spinal muscular atrophy
Ivon Cuscó, Sara Bernal, Laura Blasco-Pérez, Maite Calucho, Laura Alias, Pablo Fuentes-Prior, Eduardo F. Tizzano
Neurol Genet Dec 2020, 6 (6) e530; DOI: 10.1212/NXG.0000000000000530

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Article Information

vol. 6 no. 6 e530
DOI: 
https://doi.org/10.1212/NXG.0000000000000530

Published By: 
Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology
Online ISSN: 
2376-7839
History: 
  • Received June 23, 2020
  • Accepted in final form September 29, 2020
  • First Published November 11, 2020.

Copyright & Usage: 
Copyright © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND), which permits downloading and sharing the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

Author Disclosures

    1. Ivon Cuscó, PhD*,
    2. Sara Bernal, PhD*,
    3. Laura Blasco-Pérez, MSc,
    4. Maite Calucho, MSc,
    5. Laura Alias, PhD,
    6. Pablo Fuentes-Prior, PhD and
    7. Eduardo F. Tizzano, MD, PhD
  1. Ivon Cuscó, PhD*,
  2. Scientific Advisory Boards:
    1. NONE

    Gifts:
    1. NONE

    Funding for Travel or Speaker Honoraria:
    1. NONE

    Editorial Boards:
    1. NONE

    Patents:
    1. NONE

    Publishing Royalties:
    1. NONE

    Employment, Commercial Entity:
    1. NONE

    Consultancies:
    1. NONE

    Speakers' Bureaus:
    1. NONE

    Other Activities:
    1. NONE

    Clinical Procedures or Imaging Studies:
    1. NONE

    Research Support, Commercial Entities:
    1. NONE

    Research Support, Government Entities:
    1. NONE

    Research Support, Academic Entities:
    1. NONE

    Research Support, Foundations and Societies:
    1. NONE

    Stock/Stock Options/Board of Directors Compensation:
    1. NONE

    License Fee Payments, Technology or Inventions:
    1. NONE

    Royalty Payments, Technology or Inventions:
    1. NONE

    Stock/Stock Options, Research Sponsor:
    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:
    1. NONE

    Legal Proceedings:
    1. NONE

  3. Sara Bernal, PhD*,
  4. Scientific Advisory Boards:
    1. NONE

    Gifts:
    1. NONE

    Funding for Travel or Speaker Honoraria:
    1. NONE

    Editorial Boards:
    1. NONE

    Patents:
    1. NONE

    Publishing Royalties:
    1. NONE

    Employment, Commercial Entity:
    1. NONE

    Consultancies:
    1. NONE

    Speakers' Bureaus:
    1. NONE

    Other Activities:
    1. NONE

    Clinical Procedures or Imaging Studies:
    1. NONE

    Research Support, Commercial Entities:
    1. NONE

    Research Support, Government Entities:
    1. NONE

    Research Support, Academic Entities:
    1. NONE

    Research Support, Foundations and Societies:
    1. NONE

    Stock/Stock Options/Board of Directors Compensation:
    1. NONE

    License Fee Payments, Technology or Inventions:
    1. NONE

    Royalty Payments, Technology or Inventions:
    1. NONE

    Stock/Stock Options, Research Sponsor:
    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:
    1. NONE

    Legal Proceedings:
    1. NONE

  5. Laura Blasco-Pérez, MSc,
  6. Scientific Advisory Boards:
    1. None

    Gifts:
    1. NONE

    Funding for Travel or Speaker Honoraria:
    1. None

    Editorial Boards:
    1. NONE

    Patents:
    1. NONE

    Publishing Royalties:
    1. NONE

    Employment, Commercial Entity:
    1. NONE

    Consultancies:
    1. NONE

    Speakers' Bureaus:
    1. NONE

    Other Activities:
    1. NONE

    Clinical Procedures or Imaging Studies:
    1. NONE

    Research Support, Commercial Entities:
    1. NONE

    Research Support, Government Entities:
    1. NONE

    Research Support, Academic Entities:
    1. NONE

    Research Support, Foundations and Societies:
    1. None

    Stock/Stock Options/Board of Directors Compensation:
    1. NONE

    License Fee Payments, Technology or Inventions:
    1. NONE

    Royalty Payments, Technology or Inventions:
    1. NONE

    Stock/Stock Options, Research Sponsor:
    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:
    1. NONE

    Legal Proceedings:
    1. NONE

  7. Maite Calucho, MSc,
  8. Scientific Advisory Boards:
    1. NONE

    Gifts:
    1. NONE

    Funding for Travel or Speaker Honoraria:
    1. NONE

    Editorial Boards:
    1. NONE

    Patents:
    1. NONE

    Publishing Royalties:
    1. NONE

    Employment, Commercial Entity:
    1. NONE

    Consultancies:
    1. NONE

    Speakers' Bureaus:
    1. NONE

    Other Activities:
    1. NONE

    Clinical Procedures or Imaging Studies:
    1. NONE

    Research Support, Commercial Entities:
    1. NONE

    Research Support, Government Entities:
    1. NONE

    Research Support, Academic Entities:
    1. NONE

    Research Support, Foundations and Societies:
    1. NONE

    Stock/Stock Options/Board of Directors Compensation:
    1. NONE

    License Fee Payments, Technology or Inventions:
    1. NONE

    Royalty Payments, Technology or Inventions:
    1. NONE

    Stock/Stock Options, Research Sponsor:
    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:
    1. NONE

    Legal Proceedings:
    1. NONE

  9. Laura Alias, PhD,
  10. Scientific Advisory Boards:
    1. NONE

    Gifts:
    1. NONE

    Funding for Travel or Speaker Honoraria:
    1. NONE

    Editorial Boards:
    1. NONE

    Patents:
    1. NONE

    Publishing Royalties:
    1. NONE

    Employment, Commercial Entity:
    1. NONE

    Consultancies:
    1. NONE

    Speakers' Bureaus:
    1. NONE

    Other Activities:
    1. NONE

    Clinical Procedures or Imaging Studies:
    1. NONE

    Research Support, Commercial Entities:
    1. NONE

    Research Support, Government Entities:
    1. NONE

    Research Support, Academic Entities:
    1. NONE

    Research Support, Foundations and Societies:
    1. NONE

    Stock/Stock Options/Board of Directors Compensation:
    1. NONE

    License Fee Payments, Technology or Inventions:
    1. NONE

    Royalty Payments, Technology or Inventions:
    1. NONE

    Stock/Stock Options, Research Sponsor:
    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:
    1. NONE

    Legal Proceedings:
    1. NONE

  11. Pablo Fuentes-Prior, PhD and
  12. Scientific Advisory Boards:
    1. NONE

    Gifts:
    1. NONE

    Funding for Travel or Speaker Honoraria:
    1. NONE

    Editorial Boards:
    1. NONE

    Patents:
    1. NONE

    Publishing Royalties:
    1. NONE

    Employment, Commercial Entity:
    1. NONE

    Consultancies:
    1. NONE

    Speakers' Bureaus:
    1. NONE

    Other Activities:
    1. NONE

    Clinical Procedures or Imaging Studies:
    1. NONE

    Research Support, Commercial Entities:
    1. NONE

    Research Support, Government Entities:
    1. Spanish Ministry of Science and Innovation (MICINN), RETOS RTI2018-101500-B-I00, Principal Investigator, 2018- 2021

    Research Support, Academic Entities:
    1. NONE

    Research Support, Foundations and Societies:
    1. (1) "Daniel Bravo Andreu" Foundation

    Stock/Stock Options/Board of Directors Compensation:
    1. NONE

    License Fee Payments, Technology or Inventions:
    1. NONE

    Royalty Payments, Technology or Inventions:
    1. NONE

    Stock/Stock Options, Research Sponsor:
    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:
    1. NONE

    Legal Proceedings:
    1. NONE

  13. Eduardo F. Tizzano, MD, PhD
  14. Scientific Advisory Boards:
    1. Grant support to conduct clinical trials on SMA from Ionis/Biogen Serves as a consultant to AveXis, Biogen, Biologix, Cytokinetics, Roche Serves as a scientific/medical advisor for non profit organizations such as FAME Chile, Famiglie SMA Italy, Familias SMA Argentina, FUNDAME, SMA Europe, and TREAT-NMD

    Gifts:
    1. NONE

    Funding for Travel or Speaker Honoraria:
    1. NONE

    Editorial Boards:
    1. NONE

    Patents:
    1. NONE

    Publishing Royalties:
    1. NONE

    Employment, Commercial Entity:
    1. NONE

    Consultancies:
    1. NONE

    Speakers' Bureaus:
    1. NONE

    Other Activities:
    1. NONE

    Clinical Procedures or Imaging Studies:
    1. NONE

    Research Support, Commercial Entities:
    1. Partial support from Biogen to support L.B.P.

    Research Support, Government Entities:
    1. Partial support from Spanish Instituto de Salud Carlos III, Fondo de Investigaciones Sanitarias and cofunded with ERDF funds (Grant No. FIS PI18/000687) to E.F.T. and L.A.

    Research Support, Academic Entities:
    1. NONE

    Research Support, Foundations and Societies:
    1. Partial support Grants from “Fundación Daniel Bravo Andreu” (to E.F.T. and P.F.-P. and supporting M.C.) Partial support Grant from SMA Europe (to E.F.T and P.F.-P.)

    Stock/Stock Options/Board of Directors Compensation:
    1. NONE

    License Fee Payments, Technology or Inventions:
    1. NONE

    Royalty Payments, Technology or Inventions:
    1. NONE

    Stock/Stock Options, Research Sponsor:
    1. NONE

    Stock/Stock Options, Medical Equipment & Materials:
    1. NONE

    Legal Proceedings:
    1. NONE

  1. From the Medicine Genetics Group (I.C., L.B.-P., M.C., E.F.T.), Vall dHebron Research Institute (VHIR), Barcelona; Department of Clinical and Molecular Genetics (I.C., L.B.-P., M.C., E.F.T.), Hospital Vall dHebron, Barcelona; Department of Genetics (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Biomedical Research Institute Sant Pau (IIB Sant Pau) (S.B., L.A.), Hospital de la Santa Creu i Sant Pau, Barcelona; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER-ISCIII, U-705 Barcelona) (S.B., L.A.), Madrid; Molecular Bases of Disease (P.F.-P.), Biomedical Research Institute Sant Pau (IIB Sant Pau), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
  1. Correspondence
    Dr. Tizzano etizzano{at}vhebron.net
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