乙型肝炎表面蛋白中的N结合糖化修饰影响细胞自,HBV复制和HBV分泌
Patcharin Tepjanta1, Kazuhito Fujiyama2, Ryo Misaki2
1Department of Microbiology, Faculty of Science, Kasetsart University, Bangkok, Thailand.
PloS one
|March 15, 2024
概括
乙型肝炎病毒 (HBV) 突变的大表面蛋白N链接糖化位点通过操纵宿主细胞自增强病毒复制和分泌. 针对这些修改或自可能为HBV和肝细胞癌 (HCC) 提供新的治疗方法.
科学领域:
- 病毒学 病毒学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 与N相关的糖化是影响蛋白质功能的关键的翻译后修饰.
- 自对于细胞平衡和生存至关重要.
- 乙型肝炎病毒 (HBV) 劫持宿主细胞过程,包括自,其生命周期.
研究的目的:
- 为了研究HBV大表面蛋白 (LHBs) 的N链接糖化在自中所起的作用.
- 为了确定LHBs N-链接的糖基化突变对HBV复制和分泌的影响.
- 探索HBV感染和肝细胞癌 (HCC) 的潜在治疗影响.
主要方法:
- 构造的LHBs等离子体具有突变的N结合糖化位点 (N4,N112,N309).
- 评估了肝瘤细胞中的自基因表达,自细胞积累和 lysosomal 酸化.
- 量化HBV表面抗原 (HBsAg) 和HBx瘤基因水平.
- 测量HBV复制和后代分泌,有或没有自抑制剂3-甲基氨酸 (3-MA).
主要成果:
- LHBs N-糖甘突变诱导了自基因表达和自细胞积累.
- 突变影响了 lysosomal 酸化,这表明自流被阻断了.
- N-糖甘突变增加了HBsAgmRNA,并增强了HBV复制和分泌.
- 自对于LHBs糖化突变对HBV分泌的影响至关重要.
结论:
- 在调节宿主自过程中,LHBs的N相关糖化起着重要的作用.
- 改变的糖化对HBV复制,分泌和潜在的瘤发生有影响.
- 准LHBs N-链接的糖化或自是一种有前途的治疗策略,用于HBV和HCC.
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