A higher ratio of STIM1β/STIM1 (0.2–0.3 compared to 0.01–0.03 in astrocytes and non‐cancerous HEK293 cells) was noted in several cancer cell lines (Figure 1d), including U87 MG, SK‐N‐SH, Caco‐2, and A549 originated from glioblastoma, neuroblastoma, colorectal adenocarcinoma, and lung adenocarcinoma tissues, respectively. This evidence concerns the gene STIM1 and glioblastoma.