Nevertheless, several types of tumours demonstrated CYP4Z1 expression, including carcinomas of adrenal cortex, squamous cells of oesophagus, lung and cervix, astrocytoma, melanoma and seminoma, as well as adenocarcinomas of colon, ovary, prostate and endometrium (Figure 2). Here, CYP4Z1 is linked to astrocytoma (excluding glioblastoma).