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针对宿主衍生表位的非A,非B型肝炎特异性抗体:对自身免疫过程的影响
Lancet (London, England)
|December 8, 1990
概括
研究人员从黑猩猩血中发现了一种GOR表位,开发了一种针对它的抗体测试方法. 这种测试有助于诊断非A,非B型肝炎 (NANBH),并减少输血后的肝炎.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 肝病学 肝病学是一种肝病学.
背景情况:
- 人类非A,非B型肝炎 (NANBH) 的诊断仍然具有挑战性.
- 型肝炎病毒 (HCV) 是NANBH的主要原因,但并非所有病例都可以通过已知的HCV序列来解释.
- 宿主细胞反应可能在NANBH病变发生中发挥作用.
研究的目的:
- 为了研究一种从感染NANBH剂的黑猩猩血中发现的新型表位 (GOR表位).
- 开发和验证一种与酶相关的免疫吸收试验 (ELISA),用于针对GOR表皮质 (anti-GOR) 的抗体.
- 评估抗GOR对NANBH的诊断效用及其在减少输血后肝炎中的潜在作用.
主要方法:
- 从感染的黑猩猩血中分离了一个编码GOR表位的cDNA克隆 (GOR47-1).
- 开发一种与酶相关的免疫吸收试验 (ELISA) 来检测抗GOR抗体.
- 患者队列的血清学分析,包括急性NANBH,慢性NANBH,NANB肝硬化和初级肝细胞癌.
- 用聚合酶链反应 (PCR) 来比较抗GOR患病率与抗HCV状态,并检测HCV-RNA.
主要成果:
- GOR表位被宿主细胞序列编码,而不是报告的HCV序列.
- 在患有急性NANBH.的患者中检测到抗GOR抗体 (IgM和IgG).
- 在慢性NANBH (81%),NANB肝硬化 (65%) 和NANB肝细胞癌 (63%) 的患者中观察到抗GOR的高患病率.
- 在患有其他肝病或健康捐赠者 (<10%) 的患者中很少检测到抗GOR.
- 在大多数抗-GOR阳性患者中检测到HCV-RNA,而这些患者对抗-HCV.
结论:
- GOR表位体代表了一个潜在的与NANBH.相关的宿主衍生标记.
- 抗GOR ELISA是诊断NANBH的一个有价值的工具,特别是在抗HCV阴性病例中.
- 检测抗GOR可能有助于识别有风险的个体并减少输血后肝炎.
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