Pediatric neurology · 2025
Recurrent Encephalopathy as a Form of Presentation of Transport Protein Particle Complex 11-Related Disease: A Family Matter.
СтатьяКлинический случайНазвание и аннотация: Перевод в очереди
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Noites Inês, Borges Catarina, Ferraz Sandra Catarina, Falcão-Reis Cláudia, Garrido Cristina, Carrilho Inês
Аннотация
BACKGROUND: Transport protein particle complex 11 (TRAPPC11)-related disease, with autosomal recessive inheritance, exhibits a multisystemic involvement that goes widely beyond muscle weakness. Poor growth, psychomotor development delay, intellectual disability, microcephaly, ophthalmic involvement, and movement disorders are some of the typical features. Elevated serum creatine kinase levels are present in all previously reported TRAPPC11 c.1278+5G > A variant cases.
METHODS: Clinical characterization of three siblings from a Roma family with TRAPPC11-related disease, all harboring a homozygous c.1287+5G > A variant.
RESULTS: The older siblings presented typical features of the disease, including significant microcephaly, intellectual delay, and psychomotor regression precipitated by infections. Ataxia was consistently observed across all cases, albeit with varying severity. None of the cases had clinical signs compatible with muscular dystrophy. Notably, despite sharing the same mutation, the siblings exhibited remarkable phenotypic variability, with the youngest sibling displaying a milder phenotype.
CONCLUSIONS: This case series elucidates the intricate presentation of TRAPPopathies and underscores its phenotypic diversity, emphasizing the influence of the implicated deleterious variant. This study contributes to our understanding of TRAPPC11-related disease and highlights the importance of recognizing and characterizing phenotypic variability in this genetic disorder.
METHODS: Clinical characterization of three siblings from a Roma family with TRAPPC11-related disease, all harboring a homozygous c.1287+5G > A variant.
RESULTS: The older siblings presented typical features of the disease, including significant microcephaly, intellectual delay, and psychomotor regression precipitated by infections. Ataxia was consistently observed across all cases, albeit with varying severity. None of the cases had clinical signs compatible with muscular dystrophy. Notably, despite sharing the same mutation, the siblings exhibited remarkable phenotypic variability, with the youngest sibling displaying a milder phenotype.
CONCLUSIONS: This case series elucidates the intricate presentation of TRAPPopathies and underscores its phenotypic diversity, emphasizing the influence of the implicated deleterious variant. This study contributes to our understanding of TRAPPC11-related disease and highlights the importance of recognizing and characterizing phenotypic variability in this genetic disorder.