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通过敏感方法检测到无症状感染的儿童中EBV编码基因的表达

A Vistarop¹, N M Ferressini Gerpe¹, M V Preciado¹

¹Multidisciplinary Institute for Investigation in Pediatric Pathologies (IMIPP), CONICET-GCBA. Molecular Biology Laboratory, Pathology Division, Ricardo Gutiérrez Children's Hospital, Gallo1330, Buenos Aires, Argentina.

|July 29, 2023

概括

爱斯坦-巴尔病毒 (EBV) 通常是潜伏的,但可以改变细胞. 敏感测试检测到所有儿科桃体中的EBV基因表达,甚至在以前被认为是EBV负的桃体中,这表明病毒存在更广泛.

科学领域:

病毒学病毒学
在瘤学瘤学.
免疫学免疫学免疫学

背景情况:

埃普斯坦-巴尔病毒 (EBV) 由于其在体外的淋巴细胞转化,与淋巴瘤有关.
以前的研究表明,EBV在最初被归类为EBV负的淋巴瘤中存在EBV.
一个患有EBV相关淋巴瘤高发病率的地区需要进一步调查.

研究的目的:

用敏感基因表达试验评估爱斯坦-巴尔病毒 (EBV) 的存在.
来自高发病率地区的儿科桃体中调查EBV检测.
探索EBV基因表达在生殖中心内的初级感染阶段.

主要方法:

利用敏感基因表达试验,包括View RNA ISH,用于EBV转录检测.
分析了健康儿科捐赠者的桃体样本.
评估了EBERs,LMP1和EBNA2转录的表达.

主要成果:

在所有样本中检测到EBER的转录,超过了标准in situ杂交的灵敏度.
在93%的病例中发现了LMP1转录,在30%的病例中发现了EBNA2共表达.
在初级感染的年轻人中发现了潜伏和溶性EBV基因表达的证据.

结论:

敏感的方法揭示了儿科桃体中广泛的EBV基因表达,挑战了以前的负面评估.
包括LMP1等关键致癌蛋白质在内的EBV基因表达,即使在早期感染阶段也很普遍.
发芽中心被确定为EBV活动的重要部位,与淋巴瘤起源有关.

关键词:

这些EBER是EBERs.在EBNA2中,EBNA2是EBNA2.这是EBV的EBV.基因表达基因表达基因表达在LMP1中,LMP1是LMP1.儿科儿科儿科

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