In order to confirm whether EBV leads to the down-regulation of MT1 and HOXA genes, we next measured the expression level of these genes by reverse transcription coupled quantitative real-time PCR (RT-qPCR) in the isogenic human gastric adenocarcinoma cell lines of epithelial origin either harboring EBV (AGS-BX) or not (AGS). The gene discussed is MT1F; the disease is gastric adenocarcinoma.