Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous Deletion

Here we report the case of an ALS patient found to carry both a novel heterozygous change (c.194G>A) within the spastin gene and a homozygous deletion of the SMN2 gene. The patient was started on valproic acid (VPA, 600 mg/die per os) considering the capacity of this drug of increasing survival m...

Full description

Saved in:
Bibliographic Details
Main Authors: Lucio Tremolizzo, Gessica Sala, Elisa Conti, Virginia Rodriguez-Menendez, Antonella Fogli, Angela Michelucci, Paolo Simi, Silvana Penco, Christian Lunetta, Massimo Corbo, Carlo Ferrarese
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Case Reports in Neurological Medicine
Online Access:http://dx.doi.org/10.1155/2014/216094
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832563972437442560
author Lucio Tremolizzo
Gessica Sala
Elisa Conti
Virginia Rodriguez-Menendez
Antonella Fogli
Angela Michelucci
Paolo Simi
Silvana Penco
Christian Lunetta
Massimo Corbo
Carlo Ferrarese
author_facet Lucio Tremolizzo
Gessica Sala
Elisa Conti
Virginia Rodriguez-Menendez
Antonella Fogli
Angela Michelucci
Paolo Simi
Silvana Penco
Christian Lunetta
Massimo Corbo
Carlo Ferrarese
author_sort Lucio Tremolizzo
collection DOAJ
description Here we report the case of an ALS patient found to carry both a novel heterozygous change (c.194G>A) within the spastin gene and a homozygous deletion of the SMN2 gene. The patient was started on valproic acid (VPA, 600 mg/die per os) considering the capacity of this drug of increasing survival motor neuron through an epigenetic mechanism. Patient clinical course and molecular effects of VPA on skin fibroblasts obtained from the proband are described. This c.194G>A spastin mutation might expand the previously known borders of type 4 spastic paraplegia (SPG4) and we suggest the intriguing possibility that the absence of SMN2 might have acted as a contributory risk factor for starting lower motor neuron damage. Exploring the relationship genocopy-phenocopy in selected ALS patients might represent an interesting strategy for understanding its clinical variability.
format Article
id doaj-art-28f0c02c28f94af68372bdecae36f61e
institution Kabale University
issn 2090-6668
2090-6676
language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series Case Reports in Neurological Medicine
spelling doaj-art-28f0c02c28f94af68372bdecae36f61e2025-02-03T01:12:10ZengWileyCase Reports in Neurological Medicine2090-66682090-66762014-01-01201410.1155/2014/216094216094Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous DeletionLucio Tremolizzo0Gessica Sala1Elisa Conti2Virginia Rodriguez-Menendez3Antonella Fogli4Angela Michelucci5Paolo Simi6Silvana Penco7Christian Lunetta8Massimo Corbo9Carlo Ferrarese10Section of Neurology, Ospedale San Gerardo and DCMT, Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Via Pergolesi 33, 20900 Monza, ItalySection of Neurology, Ospedale San Gerardo and DCMT, Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Via Pergolesi 33, 20900 Monza, ItalySection of Neurology, Ospedale San Gerardo and DCMT, Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Via Pergolesi 33, 20900 Monza, ItalySection of Neurology, Ospedale San Gerardo and DCMT, Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Via Pergolesi 33, 20900 Monza, ItalyMedical Genetics, A.O.U. Pisana, Ospedale Santa Chiara, Pisa, ItalyMedical Genetics, A.O.U. Pisana, Ospedale Santa Chiara, Pisa, ItalyMedical Genetics, A.O.U. Pisana, Ospedale Santa Chiara, Pisa, ItalyMedical Genetics, Department of Laboratory Medicine, Fondazione Serena, Ospedale Niguarda Ca’ Granda, Milano, ItalyNEuroMuscular Omnicentre (NEMO), Fondazione Serena, Ospedale Niguarda Ca’ Granda, Milano, ItalyNEuroMuscular Omnicentre (NEMO), Fondazione Serena, Ospedale Niguarda Ca’ Granda, Milano, ItalySection of Neurology, Ospedale San Gerardo and DCMT, Milan Center for Neuroscience (NeuroMI), University of Milano-Bicocca, Via Pergolesi 33, 20900 Monza, ItalyHere we report the case of an ALS patient found to carry both a novel heterozygous change (c.194G>A) within the spastin gene and a homozygous deletion of the SMN2 gene. The patient was started on valproic acid (VPA, 600 mg/die per os) considering the capacity of this drug of increasing survival motor neuron through an epigenetic mechanism. Patient clinical course and molecular effects of VPA on skin fibroblasts obtained from the proband are described. This c.194G>A spastin mutation might expand the previously known borders of type 4 spastic paraplegia (SPG4) and we suggest the intriguing possibility that the absence of SMN2 might have acted as a contributory risk factor for starting lower motor neuron damage. Exploring the relationship genocopy-phenocopy in selected ALS patients might represent an interesting strategy for understanding its clinical variability.http://dx.doi.org/10.1155/2014/216094
spellingShingle Lucio Tremolizzo
Gessica Sala
Elisa Conti
Virginia Rodriguez-Menendez
Antonella Fogli
Angela Michelucci
Paolo Simi
Silvana Penco
Christian Lunetta
Massimo Corbo
Carlo Ferrarese
Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous Deletion
Case Reports in Neurological Medicine
title Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous Deletion
title_full Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous Deletion
title_fullStr Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous Deletion
title_full_unstemmed Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous Deletion
title_short Valproate Treatment in an ALS Patient Carrying a c.194G>A Spastin Mutation and SMN2 Homozygous Deletion
title_sort valproate treatment in an als patient carrying a c 194g a spastin mutation and smn2 homozygous deletion
url http://dx.doi.org/10.1155/2014/216094
work_keys_str_mv AT luciotremolizzo valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT gessicasala valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT elisaconti valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT virginiarodriguezmenendez valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT antonellafogli valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT angelamichelucci valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT paolosimi valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT silvanapenco valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT christianlunetta valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT massimocorbo valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion
AT carloferrarese valproatetreatmentinanalspatientcarryingac194gaspastinmutationandsmn2homozygousdeletion