Aberrant expression of liver microRNA in chickens infected with subgroup J avian leukosis virus

文献类型: 外文期刊

第一作者: Li, Hongmei

作者: Li, Hongmei;Ji, Jun;Xie, Qingmei;Shang, Huiqin;Chen, Feng;Sun, Baoli;Ma, Jingyun;Bi, Yingzuo;Zhang, Huanmin;Xin, Xuegang;Xue, Chunyi

作者机构:

关键词: Chicken;MicroRNA;Subgroup J avian leukosis virus

期刊名称:VIRUS RESEARCH ( 影响因子:3.303; 五年影响因子:3.445 )

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收录情况: SCI

摘要: Subgroup J avian leukosis virus (ALV-J) is an oncogenic retrovirus primarily causing myeloid leukosis (ML) in broilers. Although ALV is well under control in a few countries including the USA, poultry industry in many parts of the world continues suffering from serious economic loss due to sporadic or widespread ALV infection, especially ALV-J infection. ALV-J infection of chickens is reportedly mediated by a cellular receptor. So far, however, no genetic variant of the receptor gene that confers resistance to ALV-J has been identified. To advance our understanding on epigenetic factors that are involved in the event of ALV-J infection, we examined the expression of miRNAs in livers of 10-week-old chickens uninfected or infected with ALV-J by miRNA microarray analysis. Our data showed there were 12 miRNAs differentially expressed in liver between the uninfected and infected groups (P< 0.01). Of which, the expressions of seven miRNAs (gga-mir-221, gga-mir-222, gga-mir-1456, gga-mir-1704, gga-mir-1777, gga-mir-1790, and gga-mir-2127,) were upregulated by ALV-J infection and may be involved in oncogenicity. The other five miRNAs (gga-let-7b, gga-let-7i, gga-mir-125b, gga-mir-375, and gga-mir-458) were significantly downregulated. The downregulated miRNAs may play important roles in tumor suppression. This finding paves the way for further exploration of epigenetic influence on tumorigenicity upon ALV-J infection.

分类号: R37

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