TY - JOUR
T1 - Metabolism of phenanthrene, benz[a]anthracene, benzo[a]pyrene, chrysene and benzo[c]phenanthrene by eight cDNA-expressed human and rat cytochromes P450
AU - Jacob, Jürgen
AU - Doehmer, Johannes
AU - Grimmer, Gernot
AU - Soballa, Volker
AU - Raab, Gottfried
AU - Seidel, Albrecht
AU - Greim, Helmut
PY - 1996
Y1 - 1996
N2 - Phenanthrene, benz[a]anthracene, chrysene, benzo[c]phenanthrene, and benzo[a]pyrene have been studied for their regiospecific oxidation by five human (1A1, 1A2, 2A6, 2E1, 3A4) and three rat (1A1, 1A2, 2B1) CYP isoforms. All substrates are preferentially metabolized by CYP1A1 and CYP1A2 in human and rat. Other isoforms play a minor role if at all. Significant differences between human and rat CYP isoforms can be recognized with regard to the regiospecific oxidation of PAH. For instance, K-region oxidation is more pronounced in rat than in human CYP1A1 and CYP1A2. Hence, extrapolation from metabolism studies in rodents to human may be limited.
AB - Phenanthrene, benz[a]anthracene, chrysene, benzo[c]phenanthrene, and benzo[a]pyrene have been studied for their regiospecific oxidation by five human (1A1, 1A2, 2A6, 2E1, 3A4) and three rat (1A1, 1A2, 2B1) CYP isoforms. All substrates are preferentially metabolized by CYP1A1 and CYP1A2 in human and rat. Other isoforms play a minor role if at all. Significant differences between human and rat CYP isoforms can be recognized with regard to the regiospecific oxidation of PAH. For instance, K-region oxidation is more pronounced in rat than in human CYP1A1 and CYP1A2. Hence, extrapolation from metabolism studies in rodents to human may be limited.
KW - Benzo[a]pyrene
KW - Benzo[c]phenanthrene
KW - Benz[a]anthracene
KW - Chrysene
KW - Cyp450 isoforms
KW - Phenanthrene
UR - http://www.scopus.com/inward/record.url?scp=3142529067&partnerID=8YFLogxK
U2 - 10.1080/10406639608034673
DO - 10.1080/10406639608034673
M3 - Article
AN - SCOPUS:3142529067
SN - 1040-6638
VL - 10
SP - 1
EP - 9
JO - Polycyclic Aromatic Compounds
JF - Polycyclic Aromatic Compounds
IS - 1-4
ER -