Figure 2. Valproic acid (VPA) treatment exhibits an anti-oral cancer cell effect. Oral cancer cells (squamous cell carcinoma [SCC] 25 and OECM-1) were treated with VPA for 72 h with indicated concentrations. The viability of these two cell lines was assessed by MTT assay. The results indicated that 2 mM VPA induced (a) SCC 25 and (b) OECM-1 cell deaths (n = 3; *P < 0.05; **P < 0.01; ***P < 0.001)
![Figure 2. Valproic acid (VPA) treatment exhibits an anti-oral cancer cell effect. Oral cancer cells (squamous cell carcinoma [SCC] 25 and OECM-1) were treated with VPA for 72 h with indicated concentrations. The viability of these two cell lines was assessed by MTT assay. The results indicated that 2 mM VPA induced (a) SCC 25 and (b) OECM-1 cell deaths (<i>n</i> = 3; *<i>P</i> < 0.05; **<i>P</i> < 0.01; ***<i>P</i> < 0.001)](articles/2015/35/1/images/JMedSci_2015_35_1_28_151289_f2.jpg)