Next, we further elucidated the effects of Cirbp overexpression on the sensitization of NPC cells and cancer stem-like cells to hyperthermia in vitro by CCK-8 assay (Fig. 5A), colony formation assay (Fig. 5B) and tumorsphere formation assay (Fig. 5C). The gene discussed is CIRBP; the disease is nasopharyngeal carcinoma.