title: Cytochrome P450 (CYP) expression in human myeloblastic and lymphoid cell lines.
abstract: To explore the physiological roles of cytochrome P450 (CYP) in peripheral blood cells, we examined which isoforms of CYP families were expressed in human myeloid leukemia cell lines (U937, HL-60 and K562) and lymphoid cell lines (BALL-1, MOLT-4 and Jurkat) by RT-PCR. We observed relatively high expression of CYP1A1, CYP1B1, CYP2A6, CYP2A7, CYP2D6, and CYP2E1 in all cell types, but CYP2A13 and CYP2C9 expression was not detected. Expressions of aryl hydrocarbon (Ah) receptor and Ah receptor nuclear translocator (ARNT), which mediate induction of the CYP1 family, were also detected in all cell types. Cell-type specific expression of CYP3A4 and CYP3A5 was observed in MOLT-4 and K562 cells. Weak, but significant, expression of CYP3A7 was detected in K562 cells. The profile of CYP expression in the culture cells reported here provides information that furthers our understanding of the physiological roles of CYP enzymes in human blood cells.
authors.affiliation: Kyoritsu College of Pharmacy, Tokyo, Japan.
authors.forename: Fusako
authors.initials: F
authors.lastname: Nagai
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Hiyoshi
authors.forename: Kumiko
authors.initials: K
authors.lastname: Sugimachi
authors.forename: Hiro-Omi
authors.initials: HO
authors.lastname: Tamura
mesh_terms: D001483:Base Sequence; D002460:Cell Line; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism*; D017931:DNA Primers; D006801:Humans; D007945:Leukemia, Lymphoid / Q000201:enzymology* / Q000473:pathology; D007951:Leukemia, Myeloid / Q000201:enzymology* / Q000473:pathology; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D017931:DNA Primers; D003577:Cytochrome P-450 Enzyme System