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J Virol. 1990 May;64(5):1984-90.

Identification of a glucocorticoid-responsive element in Epstein-Barr virus.

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1
Radiobiology Laboratories, Yale University School of Medicine, New Haven, Connecticut 06510-8039.

Abstract

Immortalization of B lymphocytes by Epstein-Barr virus (EBV) is complex and poorly understood. However, some evidence suggests that glucocorticoids influence this process. We identified a glucocorticoid-responsive element in the BamHI C fragment of EBV which we call ES-1. In glucocorticoid-treated cells, ES-1 enhanced chloramphenicol acetyltransferase gene expression from the herpes simplex virus thymidine kinase promoter, as well as the EBV Bam-C promoter, from which several latent viral gene products are transcribed. By Northern blot analysis, glucocorticoid treatment enhanced transcription from the Bam-C promoter in Jijoye cells, a Burkitt's lymphoma cell line. In addition, the DNA-binding domain of the glucocorticoid receptor bound specifically to the ES-1 region. These glucocorticoid effects on the Bam-C promoter region may provide some insight into the process of EBV immortalization.

PMID:
2157866
PMCID:
PMC249352
[Indexed for MEDLINE]
Free PMC Article
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