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HBx

HBx的相关文献在1999年到2022年内共计135篇,主要集中在肿瘤学、基础医学、内科学 等领域,其中期刊论文110篇、专利文献25篇;相关期刊86种,包括生物技术通报、医学分子生物学杂志、国际病理科学与临床杂志等; HBx的相关文献由442位作者贡献,包括谭德明、刘菲、文艳君等。

HBx—发文量

期刊论文>

论文:110 占比:81.48%

专利文献>

论文:25 占比:18.52%

总计:135篇

HBx—发文趋势图

HBx

-研究学者

  • 谭德明
  • 刘菲
  • 文艳君
  • 李玉华
  • 杨莉
  • 林松挺
  • 程平
  • 魏于全
  • 伍刚
  • 侯周华
  • 期刊论文
  • 专利文献

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    • Haixia Shan; Bo Wang; Xiaodong Zhang; Hui Song; Xi Li; Yongxin Zou; Baichun Jiang; Huili Hu; Hao Dou; Changshun Shao; Lifen Gao; Chunhong Ma; Xiaoyun Yang; Xiaohong Liang; Yaoqin Gong
    • 摘要: Objective:Hepatitis B virus(HBV)infection is a major public health problem worldwide.However,the regulatory mechanisms underlying HBV replication remain unclear.Cullin 4 B-RING ubiquitin E3 ligase(CRL4 B)is involved in regulating diverse physiological and pathophysiological processes.In our study,we aimed to explain the role of CUL4 B in HBV infection.Methods:Cul4 b transgenic mice or conditional knockout mice,as well as liver cell lines with CUL4 B overexpression or knockdown,were used to assess the role of CUL4 B in HBV replication.Immunoprecipitation assays and immunofluorescence staining were performed to study the interaction between CUL4 B and HBx.Cycloheximide chase assays and in vivo ubiquitination assays were performed to evaluate the half-life and the ubiquitination status of HBx.Results:The hydrodynamics-based hepatitis B model in Cul4 b transgenic or conditional knockout mice indicated that CUL4 B promoted HBV replication(P<0.05).Moreover,the overexpression or knockdown system in human liver cell lines validated that CUL4 B increased HBV replication in an HBx-dependent manner.Importantly,immunoprecipitation assays and immunofluorescence staining showed an interaction between CUL4 B and HBx.Furthermore,CUL4 B upregulated HBx protein levels by inhibiting HBx ubiquitination and proteasomal degradation(P<0.05).Finally,a positive correlation between CUL4 B expression and HBV pg RNA level was observed in liver tissues from HBV-positive patients and HBV transgenic mice.Conclusions:CUL4 B enhances HBV replication by interacting with HBx and disrupting its ubiquitin-dependent proteasomal degradation.CUL4 B may therefore be a potential target for anti-HBV therapy.
    • Xiaodong Zhang; Yufei Wang; Guang Yang
    • 摘要: Hepatitis B virus(HBV)infections are a global public health issue.HBV covalently closed circular DNA(cccDNA),the template for the transcription of viral RNAs,is a key factor in the HBV replication cycle.Notably,many host factors involved in HBV cccDNA epigenetic modulation promote the development of hepatocellular carcinoma(HCC).The HBV cccDNA minichromosome is a clinical obstacle that cannot be efficiently eliminated.In this review,we provide an update on the advances in research on HBV cccDNA and further discuss factors affecting the modulation of HBV cccDNA.Hepatitis B virus X protein(HBx)contributes to HBV cccDNA transcription and the development of hepatocarcinogenesis through modulating host epigenetic regulatory factors,thus linking the cccDNA to hepatocarcinogenesis.The measurable serological biomarkers of continued transcription of cccDNA,the effects of anti-HBV drugs on cccDNA,and potential therapeutic strategies targeting cccDNA are discussed in detail.Thus,this review describes new insights into HBV cccDNA mechanisms and therapeutic strategies for cleaning cccDNA,which will benefit patients with liver diseases.
    • 杨猛; 浦涧
    • 摘要: 原发性肝癌是我国常见的恶性肿瘤之一,其中乙肝相关性肝癌(以下简称肝癌)是原发性肝癌中最常见的,严重威胁我国人民的生命健康,对其分子机制的研究有助于预防及治疗肝癌。肝癌发生机制复杂,而HBx在肝癌发生机制中起着至关重要的作用,现主要从HBx导致肝癌的研究新进展方面作一综述。
    • 马军仁; 赵新军
    • 摘要: 本文基于Hill动力学与Michaelis-Menten方程,建立理论模型研究乙型肝炎病毒(HBx)通过与环磷腺苷效应元件结合蛋白(CREB)相互作用促进肝癌(HCC)发生发展的一种物理机制.理论模型考虑HBx-CPAP(中心体P4.1相关蛋白)-AKT(蛋白激酶B)-GSK3(糖原合成酶激酶3)-P53通路信号传导特性.研究发现,CREB对HBx有扩增效应,较高浓度的CREB使得P53抑癌功能下降,并促使炎性因子(NF-κB)呈现出二次增长,为HBx诱发HCC提供了炎性微环境.CREB还会调控AKT呈现二次增长,影响细胞糖原代谢,在一定程度上促使了HCC的发生发展.理论结果符合实验,进一步揭示了HBx通过与CREB相互作用促进HCC发生发展的一种物理机制,可为设计阻断肝炎向肝癌转变通路的治疗方案提供理论依据.
    • 雷静; 何平; 蔡文琳; 张永哲; 张蓓茹; 刘大军
    • 摘要: 目的:研究冬虫夏草(cordyceps sinensis)提取物对乙肝病毒X蛋白(hepatitis B virus X protein,HBx)诱导的人系膜细胞(human mesangial cells,HMCs)增殖和细胞外基质(extracellular matrix,ECM)积聚的作用及潜在机制。方法:用重组表达载体pCMV-HBx稳染人系膜细胞建立HBx过度表达模型,用空载体转染对照组。用MTT法和DNA合成法检测细胞增殖。蛋白质印迹法用于检测磷脂酰肌醇-3-激酶/蛋白激酶B(PI3K/Akt)信号通路相关蛋白和细胞外基质的表达。结果:HBx转染人系膜细胞可诱导系膜细胞增殖、基质积聚。HBx转染的HMCs可增强系膜细胞PI3K/Akt通路的活性,应用冬虫夏草可抑制这种作用。结论:冬虫夏草可通过抑制PI3K/Akt信号通路减弱HBx诱导的人系膜细胞增殖和细胞外基质的产生。
    • 金宏凯; 刘星; 高峰; 蔺广荣
    • 摘要: 目的探讨雷帕霉素靶蛋白(mammalian target of rapamycin,mTOR)、乙肝病毒基因X开放读框编码的乙肝病毒X蛋白(hepatitis B virus X pratein,HBx)在乙肝相关性肝癌组织中的表达及临床意义。方法采用免疫组织化学(strept avidin-biotion complex,SABC)法检测69例乙肝相关性肝癌和相应癌旁组织中mTOR、HBx蛋白的表达,并探讨其与乙肝相关性肝癌临床病理特征及预后的关系。结果免疫组化结果显示:mTOR、HBx蛋白在癌组织(57.97%,66.67%)的表达均高于癌旁组织(11.59%,17.39%),差异有统计学意义(χ^(2)分别为32.711、34.381,P0.05)。经Spearman分析,两者表达呈正相关(r=0.644,P=0.000)。随访结果显示:mTOR、HBx蛋白高表达组中位生存时间为13个月,95%置信区间为10.754~15.246,低表达组中位生存时间为27个月,95%置信区间为22.671~31.329,经Log-rank检验分析比较差异有统计学意义(P=0.031)。结论mTOR、HBx蛋白相互作用可能共同参与了乙肝相关性肝癌的发生与发展,且与患者预后有关。
    • 代晓朋; 宋兵; 牛霄英; 盖丽娜; 张丽; 焦艳梅; 傅占江; 崔澂
    • 摘要: 目的 探究微小RNA-27a(microRNA-27a,miR-27a)在HBV感染中的作用及分子机制.方法 实时定量PCR(quantitative real-time PCR,qRT-PCR)方法检测miR-27a对HBV DNA和HBV RNA的影响.ELISA法检测miR-27a对HBeAg和HBsAg的影响.生物信息学预测miR-27a的靶基因,然后用双荧光素酶报告基因检测、qRT-PCR和western blot检测miR-27a是否能够直接靶向靶基因以及对靶基因mRNA和蛋白表达的影响.最后用qRT-PCR检测HBV蛋白表达对miR-27a的影响.结果 MiR-27a能抑制HBV DNA、HBV RNA、HBeAg和HBsAg等HBV复制和表达的指标.生物信息学预测和双荧光素酶报告基因检测表明miR-27a能够直接靶向HBx,抑制HBx mRNA和蛋白表达.反之,HBx蛋白表达能抑制细胞内miR-27a的表达.结论 MiR-27a通过直接靶向HBx进而抑制HBV的复制和表达,可以作为一种新的治疗HBV感染的潜在靶点.
    • 金宏凯; 刘星; 高峰; 蔺广荣
    • 摘要: 目的 探讨雷帕霉素靶蛋白(mammalian target of rapamycin,mTOR)、乙肝病毒基因X开放读框编码的乙肝病毒X蛋白(hepatitis B virus X pratein,HBx)在乙肝相关性肝癌组织中的表达及临床意义.方法 采用免疫组织化学(strept avidin-biotion complex,SABC)法检测69例乙肝相关性肝癌和相应癌旁组织中mTOR、HBx蛋白的表达,并探讨其与乙肝相关性肝癌临床病理特征及预后的关系.结果 免疫组化结果显示:mTOR、HBx蛋白在癌组织(57.97%,66.67%)的表达均高于癌旁组织(11.59%,17.39%),差异有统计学意义(x2分别为32.711、34.381,P0.05).经Spearman分析,两者表达呈正相关(r=0.644,P=0.000).随访结果显示:mTOR、HBx蛋白高表达组中位生存时间为13个月,95%置信区间为10.754~15.246,低表达组中位生存时间为27个月,95%置信区间为22.671~31.329,经Log-rank检验分析比较差异有统计学意义(P=0.031).结论 mTOR、HBx蛋白相互作用可能共同参与了乙肝相关性肝癌的发生与发展,且与患者预后有关.
    • 俞淑娴; 曾普华; 郜文辉
    • 摘要: 目的 乙型肝炎病毒(HBV)是原发性肝癌发生发展的重要诱因,乙肝病毒x蛋白(HBx)是HBV引起疾病过程中的关键致病基因.探讨益气化瘀解毒方对HBV相关性肝癌中HBx表达的影响.方法 实验分为空白对照组、益气化瘀解毒方组、重楼皂苷I组、二甲双胍组、益气化瘀解毒方加重楼皂苷I组、益气化瘀解毒方加二甲双胍组,以HBV质粒转染HepG2的受体细胞(HepG 2.2.15)作为观察对象,免疫印迹法(Western blot,WB)、实时荧光定量PCR法检测不同药物组对HepG 2.2.15细胞中HBx基因蛋白和mRNA表达水平的影响;重楼皂苷I作为益气化瘀解毒方中的一部分,并通过分子对接验证重楼皂苷I对肝癌的影响.结果 益气化瘀解毒方组、重楼皂苷1组、二甲双胍组、益气化瘀解毒方加重楼皂苷I组、益气化瘀解毒方加二甲双胍组组均能不同程度下调HBx、mRNA表达(P<0.01);分子对接结果表明重楼皂苷I与HBx有较好的亲和性.结论 益气化瘀解毒方可通过下调关键致癌基因HBx的方式来抑制肝癌的发生,从而对肝癌起到一定的治疗作用,重楼皂苷I可能为该方的主要活性成分.
    • Ingorn Kimkong; Areerat Kunanopparat
    • 摘要: The majority of hepatocellular carcinoma(HCC)cases are associated with the hepatitis B virus(HBV)infection.Autophagy related protein 9A(ATG9A)is a transmembrane protein required for autophagosome formation.In order to investigate the role of ATG9A in HBV-associated HCC,ATG9A protein expression was determined in tumor liver tissues and compared with adjacent nontumor tissues from HCC patients with or without HBV infection.In HBVassociated HCC tissues,ATG9A protein level was increased in tumor liver tissues,but not in cases of non-HBV HCC.Our findings suggested that ATG9A might be involved in HBV and cancer cell survival.Therefore,we aimed to analyze the function of ATG9A in HBV replication using RNA interference to evaluate the HBV DNA level using real-time PCR.In the present study,there were no significant differences between shATG9A-transfected HepG2.2.15 cells and the mock control.However,we found that silencing ATG9A affected apoptosis in HepG2.2.15 and HepG2 cell lines.Our results indicated that ATG9A might be partly involved in the survival of HCC.Thus,the inhibition of ATG9A together with other targets might be a potential drug target for HCC treatment.
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