CLN3 and cancer: In cancer tissues, CLN3 mRNA and protein are overexpressed in glioblastoma (U‐373G and T98g), neuroblastoma (IMR‐32, SH‐SY5Y, and SK‐N‐MC), prostate (Du145, PC‐3, and LNCaP), ovarian (SK‐OV‐3, SW626, and PA‐1), breast (BT‐20, BT‐549, and BT‐474), and colon (SW1116, SW480, and HCT 116) cancer cell lines, but not in pancreatic (CAPAN and As‐PC‐1) or lung (A‐549 and NCI‐H520) cancer cell lines.