Furthermore, we were able to unveil NG2/CSPG4 isoforms that were pericytes-elective, i.e. not expressed by glioblastoma cells, or their associated non-neoplastic cells, and isoforms that appeared to be specific to the cancer cells as they were neither present on tumour vessels nor in foetal vessel pericytes. This evidence concerns the gene CSPG4 and cancer.