As shown in Additional file 3: Figure S2, cells with genetic inhibition (Additional file 3: Figure S2A) or pharmacological inhibition (Additional file 3: Figure S2B) of G9a displayed less BrdU incorporation compared to the vehicle counterpart, suggesting that G9a may positively regulate cell growth in HNSCC. The gene discussed is EHMT2; the disease is head and neck squamous cell carcinoma.