“Silent” Hepatitis B Virus Mutants Are Responsible for Non‐A, Non‐B, Non‐C, Non‐D, Non‐E Hepatitis

“Silent” Hepatitis B Virus Mutants Are Responsible for Non‐A, Non‐B, Non‐C, Non‐D, Non‐E Hepatitis
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“沉默”乙型肝炎病毒突变体导致非甲型、非乙型、非丙型、非丁型、非戊型肝炎

DOI:
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发表时间:
1994
影响因子:
2.6
通讯作者:
K. Kiyosawa
K. Kiyosawa
中科院分区:
医学4区
文献类型:
--
作者:
T. Uchida;M. Shimojima;K. Gotoh;T. Shikata;E. Tanaka;K. Kiyosawa

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自从最近推出丙型肝炎和戊型肝炎诊断试剂盒以来,已经发现了一些非甲型、非乙型、非丙型、非丁型、非戊型肝炎(所谓的丙型肝炎)病例。我们试图证明所谓的 F 型肝炎是由乙型肝炎病毒 (HBV) 变种引起的。采用聚合酶链式反应 (PCR) 扩增 20 名急性肝炎患者和 20 名慢性肝炎患者的血清 HBV DNA,这些患者根据常规血清学标志物被诊断为所谓的 F 型肝炎。 PCR技术成功扩增了18例(90%)急性肝炎病例和17例(85%)慢性肝炎病例的HBV DNA。对 6 名患者(急性 3 名,慢性 3 名)的 HBV DNA 进行测序,结果显示 DR2 存在 T 至 C 突变,以及 X 基因编码区 3' 末端的 8 个核苷酸缺失,从而产生 C 末端截短的 X 蛋白,并可能损坏增强子 II/核心启动子元件。 X 基因编码区的这些突变可能导致 HBV DNA 的复制和表达受到抑制。因此,几乎所有所谓的 F 型肝炎病例似乎都是由“沉默”的 HBV 突变体引起的,至少在日本是这样。
Since the recent introduction of diagnostic kits for hepatitis C and E, some cases of nonA, non‐B, non‐C, non‐D, non‐E hepatitis (so‐called hepatitis F) have been revealed. We attempted to demonstrate that so‐called hepatitis F is caused by hepatitis B virus (HBV) variants. Polymerase chain reaction (PCR) was used to amplify serum HBV DNAs from 20 patients with acute hepatitis and 20 patients with chronic hepatitis who had been diagnosed as having so‐called hepatitis F on the basis of conventional serological markers. The PCR technique successfully amplified HBV DNAs in 18 (90%) cases of acute hepatitis and 17 (85%) cases of chronic hepatitis. Sequencing of HBV DNAs of six patients (acute 3, chronic 3) revealed equally a T‐to‐C mutation of DR2 and an 8‐nucleotide deletion of the 3′‐terminus of the X gene coding region, giving rise to the generation of a C‐terminally truncated X protein and probable damage to the enhancer II/core promoter elements. These mutations of the X gene coding region may lead to suppression of replication and expression of HBV DNAs. Thus virtually all cases of so‐called hepatitis F appear to be caused by “silent” HBV mutants, at least in Japan.
病毒增强子的反式激活,包括乙型肝炎病毒 X 蛋白对人类免疫缺陷病毒的长末端重复。
DOI: 10.1016/0042-6822(89)90177-3
发表时间: 1989
期刊: Virology
影响因子: 3.7
作者:
Siddiqui,A;Gaynor,R;Srinivasan,A;Mapoles,J;Farr,RW
通讯作者: Farr,RW