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病例报告:新型UNC93B1变种导致类风湿性关节炎和间歇性肺炎
Tingyan He1, Junbin Ou2, Lijuan Huang2
1Department of Rheumatology and Immunology, Shenzhen Children's Hospital, Shenzhen, China.
Frontiers in immunology
|October 17, 2025
概括
致病变体在UNC93B1中,这是类似收费受体的关键调节者,与早期发生的自身免疫性疾病有关. 这项研究确定了一种与青少年关节炎和间歇性肺炎相关的新型UNC93B1变异.
科学领域:
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
背景情况:
- UNC93B1是一种跨膜蛋白,对收费类受体 (TLR) 调节至关重要.
- 在少数患有儿童性全身性红斑狼和白狼的患者中,已经确定了UNC93B1的致病变体.
研究的目的:
- 研究UNC93B1变种在早期发生的自身免疫性疾病中的作用.
- 描述一种新的UNC93B1变种及其相关的临床表现.
主要方法:
- 采用了全外因子测序和桑格测序.
- 收集了人口统计数据,病史和体检结果.
- 进行了干扰素刺激基因 (ISG) 评分分析.
主要成果:
- 在四名患者中发现了一种新的UNC93B1 c.1007G>A p.R336H变种.
- 三名患者出现了青少年关节炎或类风湿性关节炎和间歇性肺炎.
- 一名患者表现出免疫血小板缺血 (ITP) 的主流表型,并患有关节炎和间歇性肺炎.
- 在活跃疾病期间,在一名患者身上观察到ISG得分升高和IFN刺激的细胞因子基因过度表达.
- 这使得报告的UNC93B1病原突变病例总数达到25例,其中包括13例儿童发病的SLE和12例皮肤狼病例.
结论:
- 在早期发生的自身免疫性疾病中,特别是儿童发病的SLE,青少年关节炎和类风湿性关节炎中,应考虑与UNC93B1突变相关的疾病.
- 肺部干扰是显著的特征,需要对这些患者进行监测.
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