Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular Atrophy

Most cases of spinal muscular atrophy are caused by functional loss of the survival of motor neuron 1 ( SMN1 ) gene, while less than 5% of cases are attributed to genes other than SMN . Mutations in LMNA , the lamin A/C encoding gene, cause an adult form of spinal muscular atrophy (SMA), and in our...

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Main Authors: Darija Šoltić, Heidi R Fuller
Format: Article
Language:English
Published: SAGE Publishing 2020-03-01
Series:Neuroscience Insights
Online Access:https://doi.org/10.1177/2633105520914301
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author Darija Šoltić
Heidi R Fuller
author_facet Darija Šoltić
Heidi R Fuller
author_sort Darija Šoltić
collection DOAJ
description Most cases of spinal muscular atrophy are caused by functional loss of the survival of motor neuron 1 ( SMN1 ) gene, while less than 5% of cases are attributed to genes other than SMN . Mutations in LMNA , the lamin A/C encoding gene, cause an adult form of spinal muscular atrophy (SMA), and in our recent work, we highlight a role for lamin A/C in SMN-related SMA pathways. Here, we discuss this apparent molecular crosstalk between different types of SMA in context with previous work, showing that dysregulation of proteins produced by other SMA-causing genes, including UBE1, GARS , and SETX , are also implicated in SMN-related SMA pathways. The perturbation of UBE1, GARS, and lamin A/C help explain mechanisms of tissue-specific pathology in SMA, and we propose Wnt/β-catenin signalling as a common molecular pathway on which they each converge. Therapeutic strategies directed at these proteins, or their convergent pathways, may therefore offer a new approach to targeting tissue-specific pathology in SMN-related SMA.
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spelling doaj.art-2e8a7409a3054209bc76af60fb3b0cdb2022-12-21T19:33:03ZengSAGE PublishingNeuroscience Insights2633-10552020-03-011510.1177/2633105520914301Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular AtrophyDarija Šoltić0Heidi R Fuller1The School of Pharmacy and Bioengineering, Keele University, Keele, UKThe School of Pharmacy and Bioengineering, Keele University, Keele, UKMost cases of spinal muscular atrophy are caused by functional loss of the survival of motor neuron 1 ( SMN1 ) gene, while less than 5% of cases are attributed to genes other than SMN . Mutations in LMNA , the lamin A/C encoding gene, cause an adult form of spinal muscular atrophy (SMA), and in our recent work, we highlight a role for lamin A/C in SMN-related SMA pathways. Here, we discuss this apparent molecular crosstalk between different types of SMA in context with previous work, showing that dysregulation of proteins produced by other SMA-causing genes, including UBE1, GARS , and SETX , are also implicated in SMN-related SMA pathways. The perturbation of UBE1, GARS, and lamin A/C help explain mechanisms of tissue-specific pathology in SMA, and we propose Wnt/β-catenin signalling as a common molecular pathway on which they each converge. Therapeutic strategies directed at these proteins, or their convergent pathways, may therefore offer a new approach to targeting tissue-specific pathology in SMN-related SMA.https://doi.org/10.1177/2633105520914301
spellingShingle Darija Šoltić
Heidi R Fuller
Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular Atrophy
Neuroscience Insights
title Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular Atrophy
title_full Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular Atrophy
title_fullStr Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular Atrophy
title_full_unstemmed Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular Atrophy
title_short Molecular Crosstalk Between Non-SMN-Related and SMN-Related Spinal Muscular Atrophy
title_sort molecular crosstalk between non smn related and smn related spinal muscular atrophy
url https://doi.org/10.1177/2633105520914301
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