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| 1 | Expression of B7-H4 and hepatitis B virus X in hepatitis B virus-related hepatocellular carcinoma显示文摘AIM: To investigate the expression and clinical significance of B7-H4 and hepatitis B virus X(HBx) protein in hepatitis B virus-related hepatocellular carcinoma(HBV-HCC).METHODS: The expression of B7-H4 in the human HCC cell lines Hep G2 and Hep G2.2.15 were detected by western blot, flow cytometry, and immunofluorescence. The expression of B7-H4 and HBx in 83 HBV-HCC was detected by immunohistochemistry, and the relationship with clinicopathological features was analyzed. Paraffin sections were generated from 83 HBV-HCC patients(22 females and 61 males) enrolled in this study. The age of these patients ranged from 35 to 77 years, with an average of 52.5 ± 11.3 years. All experiments were approved by the Ethics Committees of the Second Affiliated Hospital, Zhejiang University School of Medicine.RESULTS: B7-H4 was significantly upregulated in Hep G2.2.15 cells compared to Hep G2 cells. Specifically, the protein expression of B7-H4 in the lysates of Hep G2 cells was more than that in Hep G2.2.15 cells. In addition, HBx was expressed only in Hep G2.2.15 cells. Similar data were obtained by flow cytometry. The positive rates of B7-H4 and HBx in the tissues of 83 HBV-HCC patients were 68.67%(57/83) and 59.04%(49/83), respectively. The expression of HBx was correlated with tumor node metastases(TNM) stage, and the expression of B7-H4 was positively correlated with HBx(rs = 0.388; p < 0.01). The expression level of B7-H4 in HBx-positive HBV-HCC tissues was substantially higher than that in HBx-negative HBV-HCC tissues. The expression level of B7H4 was negatively related to tumor TNM stage.CONCLUSION: Higher expression of HBx and B7-H4 was correlated with tumor progression of HBV-HCC, suggesting that B7-H4 may be involved in facilitating HBV-related hepatocarcinogenesis. | Bo Hong Yun Qian Hong Zhang Yi-wen Sang Lin-fang Cheng Qi wang Song Gao Min Zheng Hang-ping Yao | 2016 | World Journal of Gastroenterology2016，22，18： | 4 |
| 2 | Hepatitis B virus lineages in mammalian hosts:Potential for bidirectional cross-species transmission显示文摘The hepatitis B virus(HBV)is a cosmopolitan infectious agent currently affecting over 350 million people worldwide,presently accounting for more than two billion infections.In addition to man,other hepatitis virus strains infect species of several mammalian families of the Primates,Rodentia and Chiroptera orders,in addition to birds.The mounting evidence of HBV infection in African,Asian and neotropical primates draws attention to the potential crossspecies,zoonotic transmission of these viruses to man.Moreover,recent evidence also suggests the humans may also function as a source of viral infection to other mammals,particularly to domestic animals like poultry and swine.In this review,we list all evidence of HBV and HBVlike infection of nonhuman mammals and discuss their potential roles as donors or recipients of these viruses to humans and to other closely-related species. | Cibele R Bonvicino Miguel A Moreira Marcelo A Soares | 2014 | World Journal of Gastroenterology2014，20，24： | 1 |
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