NGS-Based Genetic Analysis in a Cohort of Italian Patients with Suspected Inherited Myopathies and/or HyperCKemia
Articolo
Data di Pubblicazione:
2023
Citazione:
NGS-Based Genetic Analysis in a Cohort of Italian Patients with Suspected Inherited Myopathies and/or HyperCKemia / F. Invernizzi, R. Izzo, I. Colangelo, A. Legati, N. Zanetti, B. Garavaglia, E. Lamantea, L. Peverelli, A. Ardissone, I. Moroni, L. Maggi, S. Bonanno, L. Fiori, D. Velardo, F. Magri, G.P. Comi, D. Ronchi, D. Ghezzi, C. Lamperti. - In: GENES. - ISSN 2073-4425. - 14:7(2023 Jul 02), pp. 1393.1-1393.18. [10.3390/genes14071393]
Abstract:
Introduction/Aims HyperCKemia is considered a hallmark of neuromuscular diseases. It can be either isolated or associated with cramps, myalgia, weakness, myoglobinuria, or rhabdomyolysis, suggesting a metabolic myopathy. The aim of this work was to investigate possible genetic causes in order to help diagnose patients with recurrent hyperCKemia or clinical suspicion of inherited metabolic myopathy. Methods A cohort of 139 patients (90 adults and 49 children) was analyzed using a custom panel containing 54 genes associated with hyperCKemia. Results A definite genetic diagnosis was obtained in 15.1% of cases, while candidate variants or variants of uncertain significance were found in a further 39.5%. Similar percentages were obtained in patients with infantile or adult onset, with some different causative genes. RYR1 was the gene most frequently identified, either with single or compound heterozygous variants, while ETFDH variants were the most common cause for recessive cases. In one patient, mRNA analysis allowed identifying a large LPIN1 deletion missed by DNA sequencing, leading to a certain diagnosis. Conclusion These data confirm the high genetic heterogeneity of hyperCKemia and metabolic myopathies. The reduced diagnostic yield suggests the existence of additional genes associated with this condition but also allows speculation that a significant number of cases presenting with hyperCKemia or muscle symptoms are due to extrinsic, not genetic, factors.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
creatine kinase; hyperCKemia; myoglobinuria; Next Generation Sequencing (NGS); rhabdomyolysis; skeletal muscle damage;
Elenco autori:
F. Invernizzi, R. Izzo, I. Colangelo, A. Legati, N. Zanetti, B. Garavaglia, E. Lamantea, L. Peverelli, A. Ardissone, I. Moroni, L. Maggi, S. Bonanno, L. Fiori, D. Velardo, F. Magri, G.P. Comi, D. Ronchi, D. Ghezzi, C. Lamperti
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