Fragile X syndrome - insight into what we know and prospects
DOI:
https://doi.org/10.12775/JEHS.2023.19.01.006Keywords
Fragile X syndrome, autism, neurodevelopmental disorders, FMRP, FMR1Abstract
Fragile X syndrome is a dominantly inherited genetic disease and is a consequence of the FMR1 gene mutation located on the X chromosome. The number of patients affected by this disease with full mutation is estimated at 1 in 4000 men and 1 in 8000 women, however, the number of carriers with premutation is far greater. Depending on the mutation of the FMR1 gene and levels of its products FMRP a variety of symptoms can be observed including- intellectual disability, mental retardation, lowered behavioral adaptation, autism, and dysmorphic features such as a long face with a broad forehead and prominent ears. The treatment is mostly symptomatic- managing comorbidities and an emphasis on psychological therapy. The objective of this paper is to sum up the most up-to-date knowledge regarding the pathogenesis, treatment- current and clinically tested, and novelties in the Fragile X syndrome
References
Kniffin CL. # 300624 FRAGILE X SYNDROME; FXS. https://www.omim.org/entry/309000. (accessed: 2022.12.05).
Rajaratnam A, Shergill J, Salcedo-Arellano M, Saldarriaga W, Duan X, Hagerman R. Fragile X syndrome and fragile X-associated disorders. F1000Res. 2017;6:2112. https://doi.org/10.12688/f1000research.11885.1
Ciaccio C, Fontana L, Milani D, Tabano S, Miozzo M, Esposito S. Fragile X syndrome: a review of clinical and molecular diagnoses. Ital J Pediatr. 2017;43(1):39. https://doi.org/10.1186/s13052-017-0355-y
Salcedo-Arellano MJ, Dufour B, McLennan Y, Martinez-Cerdeno V, Hagerman R. Fragile X syndrome and associated disorders: Clinical aspects and pathology. Neurobiol Dis. 2020;136:104740. https://doi.org/10.1016/j.nbd.2020.104740
Niu M, Han Y, Dy ABC, Du J, Jin H, Qin J, et al. Fragile X Syndrome: Prevalence, Treatment, and Prevention in China. Front Neurol. 2017;8:254. https://doi.org/10.3389/fneur.2017.00254
Zafarullah M, Tassone F. Molecular Biomarkers in Fragile X Syndrome. Brain Sci. 2019;9(5):96. https://doi.org/10.3390/brainsci9050096
“What is Fragile X Syndrome (FXS)? | CDC.” https://www.cdc.gov/ncbddd/fxs/facts.html (accessed: 2022.12.06).
Richter JD, Zhao X. The molecular biology of FMRP: new insights into fragile X syndrome. Nat Rev Neurosci. 2021;22(4):209-222. https://doi.org/10.1038/s41583-021-00432-0
Bagni C, Zukin RS. A Synaptic Perspective of Fragile X Syndrome and Autism Spectrum Disorders. Neuron. 2019;101(6):1070-1088. https://doi.org/10.1016/j.neuron.2019.02.041
Hagerman RJ, Berry-Kravis E, Hazlett HC, Bailey DB Jr, Moine H, Kooy RF, et al. Fragile X syndrome. Nat Rev Dis Primers. 2017;3:17065. https://doi.org/10.1038/nrdp.2017.65
Landowska A., Rzońca S., Bal J., Gos M.. Zespół łamliwego chromosomu x i choroby FMR1-zależne - Objawy kliniczne, epidemiologia i podłoże molekularne choroby. [Fragile X syndrome and FMR1-dependent diseases - clinical presentation, epidemiology and molecular background]. Journal of Mother and Child. 2018;22(1):14-21. Polish https://doi.org/10.34763/devperiodmed.20182201.1421
Gómez-Rodríguez MJ, Morales-Conejo M, Arteche-López A, Sánchez-Calvín MT, Quesada-Espinosa JF, Gómez-Manjón I, et al. Fragile X Syndrome Caused by Maternal Somatic Mosaicism of FMR1 Gene: Case Report and Literature Review. Genes (Basel). 2022;13(9):1609. https://doi.org/10.3390/genes13091609
Vafaeie F, Alerasool M, Kaseb Mojaver N, Mojarrad M. Fragile X Syndrome in a Female With Homozygous Full-Mutation Alleles of the FMR1 Gene. Cureus. 2021;13(7):e16340. https://doi.org/10.7759/cureus.16340
Castagnola S, Bardoni B, Maurin T. The Search for an Effective Therapy to Treat Fragile X Syndrome: Dream or Reality?. Front Synaptic Neurosci. 2017;9:15. https://doi.org/10.3389/fnsyn.2017.0001
D'Incal C, Broos J, Torfs T, Kooy RF, Vanden Berghe W. Towards Kinase Inhibitor Therapies for Fragile X Syndrome: Tweaking Twists in the Autism Spectrum Kinase Signaling Network. Cells. 2022;11(8):1325. https://doi.org/10.3390/cells11081325
Coleman J, Riley K. Fragile X Syndrome. Encyclopedia of Infant and Early Childhood Development. Elesevier;2022
Rais M, Binder DK, Razak KA, Ethell IM. Sensory Processing Phenotypes in Fragile X Syndrome. ASN Neuro. 2018;10:1759091418801092. https://doi.org/10.1177/1759091418801092
Raspa M, Wheeler AC, Riley C. Public Health Literature Review of Fragile X Syndrome. Pediatrics. 2017;139(3):153-171. https://doi.org/10.1542/peds.2016-1159C
Tartaglia N, Bonn-Miller M, Hagerman R. Treatment of Fragile X Syndrome with Cannabidiol: A Case Series Study and Brief Review of the Literature. Cannabis Cannabinoid Res. 2019;4(1):3-9. https://doi.org/10.1089/can.2018.0053
Sodhi DK, Hagerman R. Fragile X Premutation: Medications, Therapy and Lifestyle Advice. Pharmgenomics Pers Med. 2021;14:1689-1699. https://doi.org/10.2147/PGPM.S338846
Dy ABC, Tassone F, Eldeeb M, Salcedo-Arellano MJ, Tartaglia N, Hagerman R. Metformin as targeted treatment in fragile X syndrome. Clin Genet. 2018;93(2):216-222. https://doi.org/10.1111/cge.13039
Berry-Kravis E, Hagerman R, Visootsak J, et al. Arbaclofen in fragile X syndrome: results of phase 3 trials. J Neurodev Disord. 2017;9:3. https://doi.org/10.1186/s11689-016-9181-6
Heussler H, Cohen J, Silove N, Tich N, Bonn-Miller MO, Du W, et al. A phase 1/2, open-label assessment of the safety, tolerability, and efficacy of transdermal cannabidiol (ZYN002) for the treatment of pediatric fragile X syndrome. J Neurodev Disord. 2019;11(1):16. https://doi.org/10.1186/s11689-019-9277-x
Monyak RE, Emerson D, Schoenfeld BP, Zheng X, Chambers DB, Rosenfelt C, et al. Insulin signaling misregulation underlies circadian and cognitive deficits in a Drosophila fragile X model. Mol Psychiatry. 2017;22(8):1140-1148. https://doi.org/10.1038/mp.2016.51
Berry-Kravis E, Horrigan JP, Tartaglia N, Hagerman R, Kolevzon A, Erickson CA, et al. A Double-Blind, Randomized, Placebo-Controlled Clinical Study of Trofinetide in the Treatment of Fragile X Syndrome. Pediatr Neurol. 2020;110:30-41.
Hampson DR, Hooper AWM, Niibori Y. The Application of Adeno-Associated Viral Vector Gene Therapy to the Treatment of Fragile X Syndrome. Brain Sci. 2019;9(2):32. https://doi.org/10.3390/brainsci9020032
Okoniewski KC, Wheeler AC, Lee S, Boyea B, Raspa M, Taylor JL, et al. Early Identification of Fragile X Syndrome through Expanded Newborn Screening. Brain Sci. 2019;9(1):4. https://doi.org/10.3390/brainsci9010004
“Early Check - Home.” https://www.earlycheck.org/ (accessed: 2022.12.13).
Hayward BE, Kumari D, Usdin K. Recent advances in assays for the fragile X-related disorders. Hum Genet. 2017;136(10):1313-1327. https://doi.org/10.1007/s00439-017-1840-5
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Copyright (c) 2023 Adam Strzoda, Magdalena Kamińska, Anna Strzoda, Agata Strzoda, Wojciech Sowiński, Michał Zdybel, Agata Juda, Kornelia Rojek
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