SSTR2 and gastric cancer: After the treatment with 5-aza-dC and/or TSA, SSTR2 expression was restored in MKN45 cells by treatment with 5-aza-dC and 5-aza-dC/TSA and in AGS cells by treatment with 5-aza-dC, TSA, and 5-aza-dC/TSA, while it was restored in SNU216 and SNU719 cells only by treatment with 5-aza-dC/TSA (Figure 3D), suggesting that SSTR2 expression in GC cell lines is regulated epigenetically by a different manner according to GC cell lines.