CSPG4 and pancreatic neoplasm: The CSPG4 silencing was only partially alleviated by DNA methylation inhibitor 5-Aza-2′-Deoxycytidine (Aza); the expression was induced in three out of eight cell lines (Colo357, SU8686, T3M4; average increase of 2.7 times; Fig. 5B, lower panel), thus indicating that hypermethylation is only partially responsible for the low level of CSPG4 transcription in pancreatic tumor cells.