ZNFX1缺陷呈现为由CMV感染引发的复发性HLH
Rayan Al Lohaibi1, Aisha Mirza2, Loie Goronfolah1
1King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
Diagnostic microbiology and infectious disease
|November 7, 2025
概括
一种新的ZNFX1基因变异在婴儿中引起了严重的细胞巨乳病毒感染和血细胞性淋巴细胞瘤 (HLH). 这突显了干扰素通路在对病毒病原体的宿主防御中的关键作用.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 儿科 儿科 儿科
背景情况:
- 干扰子 (IFN) 是对宿主防御病毒感染的关键细胞因子.
- 失调的IFN信号增加了对感染和全身炎症的易感性.
- 血细胞淋巴细胞细胞瘤 (HLH) 是一种危及生命的超炎症综合征.
研究的目的:
- 在患有新型遗传变异的婴儿中报告由细胞巨乳病毒 (CMV) 感染引发的HLH病例.
- 在儿科患者中调查严重病毒感染和HLH的遗传基础.
- 扩大对ZNFX1缺陷及其在干扰性疾病中的作用的理解.
主要方法:
- 一个6个月大的男性发烧和呼吸困难的临床病例呈现.
- 实验室分析包括泛细胞减肥,炎症标志物和HLH标志物.
- 整体外基因组测序以识别遗传变异.
主要成果:
- 患者出现了CMV感染,HLH,全细胞减小和炎症标志物升高.
- 整体外体序列测定在ZNFX1基因中发现了一种新的同卵性无意义变异.
- 患者经历了CMV的活性化,神经系统的恶化和多器官功能障碍,最终因呼吸衰竭而死亡,尽管接受了治疗.
结论:
- 该病例确定了一种与严重的CMV感染和HLH相关的新型ZNFX1变异.
- ZNFX1缺乏症代表了一种新的单一性干扰病.
- 对于患有严重病毒感染,HLH和无法解释的炎症的儿童来说,早期考虑单源性干扰性疾病至关重要.
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