The neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes
Congenital myasthenic syndromes (CMS) are genetic disorders characterised by impaired neuromuscular transmission. This review provides an overview on CMS and highlights recent advances in the field, including novel CMS causative genes and improved therapeutic strategies. CMS due to mutations in SLC5...
| Автори: | , , |
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| Формат: | Journal article |
| Мова: | English |
| Опубліковано: |
MDPI
2018
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| _version_ | 1826292088922177536 |
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| author | Rodríguez Cruz, P Palace, J Beeson, D |
| author_facet | Rodríguez Cruz, P Palace, J Beeson, D |
| author_sort | Rodríguez Cruz, P |
| collection | OXFORD |
| description | Congenital myasthenic syndromes (CMS) are genetic disorders characterised by impaired neuromuscular transmission. This review provides an overview on CMS and highlights recent advances in the field, including novel CMS causative genes and improved therapeutic strategies. CMS due to mutations in SLC5A7 and SLC18A3, impairing the synthesis and recycling of acetylcholine, have recently been described. In addition, a novel group of CMS due to mutations in SNAP25B, SYT2, VAMP1, and UNC13A1 encoding molecules implicated in synaptic vesicles exocytosis has been characterised. The increasing number of presynaptic CMS exhibiting CNS manifestations along with neuromuscular weakness demonstrate that the myasthenia can be only a small part of a much more extensive disease phenotype. Moreover, the spectrum of glycosylation abnormalities has been increased with the report that GMPPB mutations can cause CMS, thus bridging myasthenic disorders with dystroglycanopathies. Finally, the discovery of COL13A1 mutations and laminin α5 deficiency has helped to draw attention to the role of extracellular matrix proteins for the formation and maintenance of muscle endplates. The benefit of β2-adrenergic agonists alone or combined with pyridostigmine or 3,4-Dyaminopiridine is increasingly being reported for different subtypes of CMS including AChR-deficiency and glycosylation abnormalities, thus expanding the therapeutic repertoire available. |
| first_indexed | 2024-03-07T03:09:19Z |
| format | Journal article |
| id | oxford-uuid:b3a2e10f-652e-4d36-b4e4-a584a652aa1e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:09:19Z |
| publishDate | 2018 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oxford-uuid:b3a2e10f-652e-4d36-b4e4-a584a652aa1e2022-03-27T04:20:37ZThe neuromuscular junction and wide heterogeneity of congenital myasthenic syndromesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b3a2e10f-652e-4d36-b4e4-a584a652aa1eEnglishSymplectic Elements at OxfordMDPI2018Rodríguez Cruz, PPalace, JBeeson, DCongenital myasthenic syndromes (CMS) are genetic disorders characterised by impaired neuromuscular transmission. This review provides an overview on CMS and highlights recent advances in the field, including novel CMS causative genes and improved therapeutic strategies. CMS due to mutations in SLC5A7 and SLC18A3, impairing the synthesis and recycling of acetylcholine, have recently been described. In addition, a novel group of CMS due to mutations in SNAP25B, SYT2, VAMP1, and UNC13A1 encoding molecules implicated in synaptic vesicles exocytosis has been characterised. The increasing number of presynaptic CMS exhibiting CNS manifestations along with neuromuscular weakness demonstrate that the myasthenia can be only a small part of a much more extensive disease phenotype. Moreover, the spectrum of glycosylation abnormalities has been increased with the report that GMPPB mutations can cause CMS, thus bridging myasthenic disorders with dystroglycanopathies. Finally, the discovery of COL13A1 mutations and laminin α5 deficiency has helped to draw attention to the role of extracellular matrix proteins for the formation and maintenance of muscle endplates. The benefit of β2-adrenergic agonists alone or combined with pyridostigmine or 3,4-Dyaminopiridine is increasingly being reported for different subtypes of CMS including AChR-deficiency and glycosylation abnormalities, thus expanding the therapeutic repertoire available. |
| spellingShingle | Rodríguez Cruz, P Palace, J Beeson, D The neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes |
| title | The neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes |
| title_full | The neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes |
| title_fullStr | The neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes |
| title_full_unstemmed | The neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes |
| title_short | The neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes |
| title_sort | neuromuscular junction and wide heterogeneity of congenital myasthenic syndromes |
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