Fibronectin is essential for hepatitis B virus propagation in vitro: may be a potential cellular target?

Fibronectin is essential for hepatitis B virus propagation in vitro: may be a potential cellular target?
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纤连蛋白对于乙型肝炎病毒体外繁殖至关重要:可能是潜在的细胞靶点?

DOI:
10.1016/j.bbrc.2006.03.204
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发表时间:
2006-06
期刊:
Biochem Biophys Res Commun.
影响因子:
--
通讯作者:
Shengqi Wang
Shengqi Wang
中科院分区:
其他
文献类型:
--
作者:
Jing Yang;Xiaoran Ding;Shengqi Wang

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本实验室的前期研究表明,B肝炎病毒(HBV)可上调HepG2.2.15细胞中的纤维连接蛋白。Budkowska A等的报道也表明人肝纤维连接蛋白可以以种属限制的方式结合HBV。因此,这是合理的,问是否抑制纤连蛋白的表达可能具有抗HBV活性和是否纤连蛋白可能被开发为一个新的潜在的细胞靶点的抗HBV药物。通过使用纤连蛋白反义寡核苷酸(ASODN),纤连蛋白抗体,和原儿茶醛(PA),我们能够表明,在HepG2.2.15细胞培养中的HBV的产量减少,在剂量依赖性的方式通过纤连蛋白抑制。此外,我们发现用ASODNs、纤连蛋白抗体和PA处理不影响HepG2.2.15细胞的活力。此外,我们观察到纤连蛋白抑制使HBV对抗HBV药物敏感。综上所述,本研究表明,纤连蛋白是必不可少的HBV传播,也提供了一些证据,纤连蛋白作为一个新的细胞靶点治疗HBV感染的潜力。
Previous studies in our laboratory strongly suggested that fibronectin was upregulated by hepatitis B virus (HBV) in HepG2.2.15 cells. Report by Budkowska A also indicated that human liver fibronectin could bind HBV in a species-restricted manner. Therefore, it is reasonable to ask whether inhibiting fibronectin expression might have anti-HBV activity and whether fibronectin might be developed as a new potential cellular target for anti-HBV drugs. By using fibronectin antisense oligonucleotide (ASODN), fibronectin antibody, and Protocatechuic aldehyde (PA), we were able to show that HBV productions in HepG2.2.15 cell culture were reduced in a dose-dependent manner by fibronectin inhibition. In addition, we found that treatment with ASODNs, fibronectin antibody, and PA did not affect HepG2.2.15 cell viability. Furthermore, we observed that fibronectin inhibition sensitized HBV to anti-HBV drugs. In summary, this study demonstrates that fibronectin is essential for HBV propagation and also provides some evidences for the potential of fibronectin as a new cellular target for HBV infection therapy.
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