Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular Atrophy

Spinal muscular atrophy (SMA) is a progressive degenerative illness that affects 1 in every 6 to 11,000 live births. This autosomal recessive disorder is caused by homozygous deletion or mutation of the <i>SMN1</i> gene (survival motor neuron). As a backup, the <i>SMN1</i> ge...

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Main Authors: Marija Babić, Maria Banović, Ivana Berečić, Tea Banić, Mirjana Babić Leko, Monika Ulamec, Alisa Junaković, Janja Kopić, Jadranka Sertić, Nina Barišić, Goran Šimić
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Journal of Clinical Medicine
Subjects:
Online Access:https://www.mdpi.com/2077-0383/12/15/5060
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author Marija Babić
Maria Banović
Ivana Berečić
Tea Banić
Mirjana Babić Leko
Monika Ulamec
Alisa Junaković
Janja Kopić
Jadranka Sertić
Nina Barišić
Goran Šimić
author_facet Marija Babić
Maria Banović
Ivana Berečić
Tea Banić
Mirjana Babić Leko
Monika Ulamec
Alisa Junaković
Janja Kopić
Jadranka Sertić
Nina Barišić
Goran Šimić
author_sort Marija Babić
collection DOAJ
description Spinal muscular atrophy (SMA) is a progressive degenerative illness that affects 1 in every 6 to 11,000 live births. This autosomal recessive disorder is caused by homozygous deletion or mutation of the <i>SMN1</i> gene (survival motor neuron). As a backup, the <i>SMN1</i> gene has the <i>SMN2</i> gene, which produces only 10% of the functional SMN protein. Nusinersen and risdiplam, the first FDA-approved medications, act as <i>SMN2</i> pre-mRNA splicing modifiers and enhance the quantity of SMN protein produced by this gene. The emergence of new therapies for SMA has increased the demand for good prognostic and pharmacodynamic (response) biomarkers in SMA. This article discusses current molecular diagnostic, prognostic, and pharmacodynamic biomarkers that could be assessed in SMA patients’ body fluids. Although various proteomic, genetic, and epigenetic biomarkers have been explored in SMA patients, more research is needed to uncover new prognostic and pharmacodynamic biomarkers (or a combination of biomarkers).
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spelling doaj.art-611a781ac08e444690742012545fd15d2023-11-18T23:08:51ZengMDPI AGJournal of Clinical Medicine2077-03832023-08-011215506010.3390/jcm12155060Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular AtrophyMarija Babić0Maria Banović1Ivana Berečić2Tea Banić3Mirjana Babić Leko4Monika Ulamec5Alisa Junaković6Janja Kopić7Jadranka Sertić8Nina Barišić9Goran Šimić10Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Pathology, University Clinical Hospital Sestre Milosrdnice Zagreb, 10000 Zagreb, CroatiaDepartment of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Medical Chemistry and Biochemistry, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaDepartment of Pediatrics, University Hospital Centre Zagreb, 10000 Zagreb, CroatiaDepartment of Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10000 Zagreb, CroatiaSpinal muscular atrophy (SMA) is a progressive degenerative illness that affects 1 in every 6 to 11,000 live births. This autosomal recessive disorder is caused by homozygous deletion or mutation of the <i>SMN1</i> gene (survival motor neuron). As a backup, the <i>SMN1</i> gene has the <i>SMN2</i> gene, which produces only 10% of the functional SMN protein. Nusinersen and risdiplam, the first FDA-approved medications, act as <i>SMN2</i> pre-mRNA splicing modifiers and enhance the quantity of SMN protein produced by this gene. The emergence of new therapies for SMA has increased the demand for good prognostic and pharmacodynamic (response) biomarkers in SMA. This article discusses current molecular diagnostic, prognostic, and pharmacodynamic biomarkers that could be assessed in SMA patients’ body fluids. Although various proteomic, genetic, and epigenetic biomarkers have been explored in SMA patients, more research is needed to uncover new prognostic and pharmacodynamic biomarkers (or a combination of biomarkers).https://www.mdpi.com/2077-0383/12/15/5060spinal muscular atrophysurvival motor neuron 1 proteinpharmacological biomarkersprognosisnusinersen
spellingShingle Marija Babić
Maria Banović
Ivana Berečić
Tea Banić
Mirjana Babić Leko
Monika Ulamec
Alisa Junaković
Janja Kopić
Jadranka Sertić
Nina Barišić
Goran Šimić
Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular Atrophy
Journal of Clinical Medicine
spinal muscular atrophy
survival motor neuron 1 protein
pharmacological biomarkers
prognosis
nusinersen
title Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular Atrophy
title_full Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular Atrophy
title_fullStr Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular Atrophy
title_full_unstemmed Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular Atrophy
title_short Molecular Biomarkers for the Diagnosis, Prognosis, and Pharmacodynamics of Spinal Muscular Atrophy
title_sort molecular biomarkers for the diagnosis prognosis and pharmacodynamics of spinal muscular atrophy
topic spinal muscular atrophy
survival motor neuron 1 protein
pharmacological biomarkers
prognosis
nusinersen
url https://www.mdpi.com/2077-0383/12/15/5060
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