(A) QGP-1 cells treated with four different HDAC inhibitors (FK228, AB3, SAHA, or VPA) showed statistically significant increases in SSTR2 mRNA expression as measured by RT-qPCR. (B) BON-1 cells treated with four different HDAC inhibitors (FK228, AB3, SAHA, or VPA) also showed statistically significant increases in SSTR2 mRNA expression.