与艾滋病相关的中枢神经系统原发性淋巴瘤中的爱斯坦-巴尔病毒
E M MacMahon1, J D Glass, S D Hayward
1Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland.
Lancet (London, England)
|October 19, 1991
概括
爱斯坦-巴尔病毒 (EBV) 与艾滋病相关的中枢神经系统原发性淋巴瘤高度相关. 一种新的in-situ杂交技术在所有研究的病例中检测到EBV转录,这表明EBV在病变发生过程中起着关键作用.
科学领域:
- 在瘤学瘤学.
- 病毒学 病毒学
- 神经病理学神经病理学
背景情况:
- 主要的中枢神经系统淋巴瘤在患有获得性免疫缺陷综合征 (AIDS) 的患者中更为普遍.
- 埃普斯坦-巴尔病毒 (EBV) 与这些淋巴瘤的关联是不清楚的,因为病毒基因表达受限和检测方法的局限性,用于甲素固定组织.
- 在潜伏的EBV感染期间,EBV编码的小RNAs (EBERs) 丰富地表达,使它们成为检测的合适目标.
研究的目的:
- 开发和应用一种新的现场混合化策略,用于检测艾滋病相关的中枢神经系统原发性淋巴瘤中潜伏的EBV.
- 确定EBV在这些瘤中的患病率,并调查其病原性作用.
主要方法:
- 开发了一种针对EBV-EBER1转录的新现场杂交技术.
- 该技术应用于21例艾滋病相关的中枢神经系统原发性淋巴瘤,这些淋巴瘤来自尸体解剖系列.
- 还评估了潜膜蛋白 (LMP) 的表达,这是一个涉及淋巴发育的病毒蛋白.
主要成果:
- 在所有21例病例的瘤细胞中检测到EBV-EBER1转录的强烈阳性信号 (100%的关联).
- 这种高患病率表明,与系统性淋巴瘤相比,这种疾病的发病因子与EBV相关性在30%至50%之间.
- 潜膜蛋白 (LMP) 的表达得到证实,进一步支持EBV的病原性作用.
结论:
- 潜在的EBV感染普遍与艾滋病相关的中枢神经系统原发性淋巴瘤有关.
- 这些发现表明EBV在这些特定淋巴瘤中起着显著的病原遗传作用.
- 在艾滋病相关的中枢神经系统原发性淋巴瘤的诊断和管理中,EBV可以作为一种有价值的瘤标志物.
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