Oligonucleotide Microarray Analysis of Gene Expression Profiles followed by Real-Time Reverse-Transcriptase Polymerase Chain Reaction Assay in Chronic Active Epstein-Barr Virus Infection

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Chronic active Epstein-Barr virus infection (CAEBV) is characterized by recurrent infectious mononucleosis—like symptoms and has high mortality and morbidity. To clarify the mechanisms of CAEBV, the gene-expression profiles of peripheral blood obtained from patients with CAEBV were investigated. Twenty genes were differentially expressed in 4 patients with CAEBV. This microarray result was verified using a real-time reverse-transcriptase polymerase chain reaction assay in a larger group of patients with CAEBV. Eventually, 3 genes were found to be significantly upregulated: guanylate binding protein 1, tumor necrosis factor—induced protein 6, and guanylate binding protein 5. These genes may be associated with the inflammatory reaction or with cell proliferation.

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