一个遗传性出血性毛细血管扩张症家系的基因分析

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OBJECTIVE: To study the mutation of ENG, ACVRL1, and SMAD4 genes in one of a family of hereditary hemorrhagic telangiectasia (HHT) and explore its molecular pathogenesis. METHODS: A family spectrum of a patient with a clinical diagnosis of HHT was surveyed. Peripheral blood samples from proband and...

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Detalles Bibliográficos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Editorial office of Chinese Journal of Hematology 2018
Materias:
论著
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7342918/
https://www.ncbi.nlm.nih.gov/pubmed/30032563
http://dx.doi.org/10.3760/cma.j.issn.0253-2727.2018.06.007
Descripción
Sumario:OBJECTIVE: To study the mutation of ENG, ACVRL1, and SMAD4 genes in one of a family of hereditary hemorrhagic telangiectasia (HHT) and explore its molecular pathogenesis. METHODS: A family spectrum of a patient with a clinical diagnosis of HHT was surveyed. Peripheral blood samples from proband and their eldest were collected, and ENG, ACVRL1 and SMAD4 gene analysis was performed by chip capture high-throughput sequencing. The mutation detected was verified by Sanger. RESULTS: 9 of the 71 family members were diagnosed with HHT with the main manifestation of recurrent nasal bleeding. Genetic analysis showed that the proband and the eldest son of ENG gene exon 9 frameshift mutation: c.1502-1503insGG (p.Gly501GlyfsX18), and mutations in ACVRL1 and SMAD4 genes were not detected. CONCLUSION: The frameshift mutation c.1502-1503insGG (p.Gly501GlyfsX18) of the ENG gene is the genetic basis for the pathogenesis of this HHT family.

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