Fig. 2

Esketamine suppressed the esophageal squamous carcinoma cells (ESCC) growth. ESCC KYSE-30 and KYSE-150 cells were exposed to concentration gradient of esketamine for 48 h or 72 h, and then cell proliferation was assessed with the MTS assay (A–D). Colony forming assays were performed after incubation with indicated concentrations of esketamine for 24 h (E, F). Data are presented as mean ± SEM; *P < 0.05, **P < 0.01, ***P < 0.001 vs the control group