在患有常见变异性免疫缺陷的患者中,对TRAF3的异合体预测功能丧失的变种
Blanca Urban1,2,3, Laura Batlle-Masó3,4,5,6, Janire Perurena-Prieto1,2,3,7
1Translational Immunology Research Group, Vall d'Hebron Research Institute (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Catalonia, Spain.
瘤亡因子受体相关因子3 (TRAF3) 哈普洛缺陷伴有复发性细菌感染和低血糖球蛋白症,模仿常见的可变免疫缺陷. 这项研究确定了新的病例,扩大了已知的TRAF3缺乏症的临床谱.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
背景情况:
- TRAF3是一种适应蛋白,对免疫信号通路至关重要.
- 以前的报道将TRAF3缺乏与病毒感染联系起来,但最近发现了一种新的细菌感染和自身免疫的表型.
研究的目的:
- 重新分析TRAF3变异的下一代测序数据,用于患有天生的免疫错误的患者.
- 为了识别和描述TRAF3哈普洛因不足 (TRAF3Hl) 的新病例.
主要方法:
- 来自800名患者的外体序列测序数据的有针对性的再分析.
- 家庭隔离研究和分子调查.
主要成果:
- 在两个具有停止增益变异的家族中发现了三个新的TRAF3Hl病例 (p.Arg163*,p.Gln407*).
- 这些患者出现了复发性细菌感染和低型球蛋白血症,此前被诊断为常见变性免疫缺陷 (CVID).
- 研究了一种TRAF3启动损失变种,但排除它是引起疾病的.
结论:
- 这项研究扩展了TRAF3Hl的临床表型,突出显示了低血和类似于CVID的表现.
- 针对性基因再分析对于识别新型疾病表型非常有价值.
- 需要对CVID患者的TRAF3功能丧失变体进行进一步的研究.
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