SRPK1 and nasopharyngeal carcinoma: In addition, many other NPC cell lines listed in the Cellosaurus database (but not in the ICLAC register) are derived from the parental cells mentioned earlier, such as 13-9B (parental cell line SUNE), 5-8F/Erbitux (parental cell line 5-8F), CNE-2Z (parental cell line CNE-2), CNE1 SRPK1 KO, CNE1 SRPK1/2 KO, and CNE1 SRPK2 KO (all derived from parental cell line CNE-1), as well as CNE-IR (parental cell line CNE-2), HNE-2 (almost identical to HNE-1), HONE-1/CPT30 and HONE-1/CPT30R (parental cell line HONE-1), S18, S18-1C3, and S26 (parent cell line CNE-2).