103PEnhancing NY-ESO-1 antigen expression in lung cancer cells through gene hypomethylation using 5-Aza-2′-deoxycytidine

Background: NY-ESO-1 is a highly immunogenic cancer-testis antigens and it is a potential candidate for immunotherapy. Cellular expression of NY-ESO-1 gene is heterogeneous depending on the demethylation status of its promoter. Exposure to 5-aza-2'-deoxycytidine (5-aza-CdR) has been reported to enhance NY-ESO-1 protein expression. Our aim is to study the effect of 5-aza-CdR on NY-ESO-1 expression in lung cancer cell lines.

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