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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Expression and tumorigenicity of the Epstein-Barr virus BARF1 gene in human Louckes B-lymphocyte cell line.

We previously showed that the Epstein-Barr virus, which encodes the BARF1 gene, could transform rodent fibroblasts. In this work, the expression of the BARF1 gene was studied in the human Louckes B-lymphocyte cell line. Introduction of the BARF1 open reading frame under the control of the Mo-MuLV LTR promotor into nontumorigenic Louckes lymphoid cells led to the activation of the c-myc protooncogene and increased expression of the B-cell surface proteins, the transferrin receptor, CD21, and CD23. BARF1-expressing cells induced a diffuse lymphoma-like tumor in newborn rats treated with anti-thymocyte serum that was, however, transient and regressed after 3-4 weeks as the immune system recovered. The tumor induction was similar to that observed with lymphoid cell lines in vitro generated by infection with the B95-8 virus strain, in which lytic antigens are expressed at low levels. After long-term culture, Louckes cell clones lost expression of the BARF1 gene and were unable to induce tumors.[1]

References

  1. Expression and tumorigenicity of the Epstein-Barr virus BARF1 gene in human Louckes B-lymphocyte cell line. Wei, M.X., Moulin, J.C., Decaussin, G., Berger, F., Ooka, T. Cancer Res. (1994) [Pubmed]
 
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