COL2A1基因甘氨酸到丝氨酸突变患者的表型谱:综述研究

IF 0.7 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY
M. Shboul, H. Sassi, H. Jilani, I. Rejeb, Y. Elaribi, S. Hizem, L. B. Jemaa, Marwa Hilmi, S. Kircher, A. Kaissi, Kurgan Russia Ortopedics n.a. G.A. Ilizarov
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引用次数: 0

摘要

目的:骨软骨发育不良是一种异质性的遗传性骨骼发育不良。COL2A1基因突变导致罕见的常染色体显性II型胶原病,其特征是骨骼发育不良、身材矮小、视力和听觉缺陷。在这项研究中,我们更详细地研究了一名2岁男孩COL2A1基因中甘氨酸到丝氨酸突变的表型和基因型特征。材料和方法:详细的临床和放射学表型表征是指导遗传学家进行适当基因型确认的基线工具。结果:遗传分析显示胶原II型α -1基因(COL2A1)中有一个新的突变,c.1681G> a (p.Gly561Ser)。鉴定的变异显示蛋白质稳定性受损,并导致II型胶原功能障碍。除了产前和产后生长迟缓外,还注意到明显的大运动发育迟缓和智力残疾。后者与大脑畸形有关。我们当前患者的整体临床表型类似于先天性脊柱骨骺发育不良(SEDC),但具有额外的表型标准。结论:本文的目的是双重的;首先,提高骨科医生在处理儿童问题时的意识
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The phenotypic spectrum in a patient with Glycine to Serine mutation in the COL2A1 gene: overview study
Objective: Osteochondrodysplasias are a heterogeneous group of genetic skeletal dysplasias. Mutations in the COL2A1 gene cause a spectrum of rare autosomal-dominant type II collagenopathies characterized by skeletal dysplasia, short stature, and with vision and auditory defects. In this study, we have investigated in more detail the phenotypic and genotypic characterization resulting from glycine to serine mutations in the COL2A1 gene in a 2-year-old boy. Materials and methods: Detailed clinical and radiological phenotypic characterization was the baseline tool to guide the geneticists toward proper genotypic confirmation. Results: Genetic analysis revealed a de novo mutation, c.1681G>A (p.Gly561Ser), in the collagen type II alpha-1 gene (COL2A1). The identified variant showed impaired protein stability, and lead to dysfunction of type II collagen. In addition to pre and postnatal growth retardation, remarkable retardation of gross motor development and intellectual disability were noted. The latter was connected to cerebral malformations. The overall clinical phenotype of our current patient resembles spondyloepiphyseal dysplasia congenita (SEDC), but with extra phenotypic criteria. Conclusions: The aim of this paper is twofold; firstly, raising awareness among orthopaedic surgeons when dealing with children
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来源期刊
AIMS Molecular Science
AIMS Molecular Science BIOCHEMISTRY & MOLECULAR BIOLOGY-
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