ABCG2 and neoplasm: Further, tumor growth inhibition rate (%) (TGI%) in 10mg/kg or 30mg/kg DMC-alone treatment group was 43.62% and 50.16% in GSC-1 and 40.32% and 43.71% in GSC-2, respectively, whereas ABCG2 knockdown (Lenti-GFP-ABCG2 shRNA) resulted in the TGI% for the 10mg/kg or 30mg/kg DMC groups was 60.32% and 71.23% in GSC-1 and 53.32% and 67.21% in GSC-2, respectively.