Title : Characterization of CYP2B6 in a CYP2B6-humanized mouse model: inducibility in the liver by phenobarbital and dexamethasone and role in nicotine metabolism in vivo.

Pub. Date : 2015 Feb

PMID : 25409894






7 Functional Relationships(s)
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1 Characterization of CYP2B6 in a CYP2B6-humanized mouse model: inducibility in the liver by phenobarbital and dexamethasone and role in nicotine metabolism in vivo. Phenobarbital cytochrome P450 family 2 subfamily B member 6 Homo sapiens
2 The inducibility of CYP2B6 by phenobarbital (PB) and dexamethasone (DEX), known inducers of CYP2B6 in human liver, was examined in the TG mice, as well as in TG/Cyp2abfgs-null (or "CYP2B6-humanized") mice. Phenobarbital cytochrome P450 family 2 subfamily B member 6 Homo sapiens
3 The inducibility of CYP2B6 by phenobarbital (PB) and dexamethasone (DEX), known inducers of CYP2B6 in human liver, was examined in the TG mice, as well as in TG/Cyp2abfgs-null (or "CYP2B6-humanized") mice. Phenobarbital cytochrome P450 family 2 subfamily B member 6 Homo sapiens
4 The inducibility of CYP2B6 by phenobarbital (PB) and dexamethasone (DEX), known inducers of CYP2B6 in human liver, was examined in the TG mice, as well as in TG/Cyp2abfgs-null (or "CYP2B6-humanized") mice. Phenobarbital cytochrome P450 family 2 subfamily B member 6 Homo sapiens
5 The inducibility of CYP2B6 by phenobarbital (PB) and dexamethasone (DEX), known inducers of CYP2B6 in human liver, was examined in the TG mice, as well as in TG/Cyp2abfgs-null (or "CYP2B6-humanized") mice. Phenobarbital cytochrome P450 family 2 subfamily B member 6 Homo sapiens
6 Hepatic expression of CYP2B6 mRNA and protein was greatly induced by PB or DEX treatment in both TG and TG/Cyp2abfgs-null mice. Phenobarbital cytochrome P450 family 2 subfamily B member 6 Homo sapiens
7 In PB-treated mice, the rates of hepatic microsomal hydroxybupropion formation (at 50 muM bupropion) were >4-fold higher in TG/Cyp2abfgs-null than in Cyp2abfgs-null mice (for both male and female mice); the rate difference was accompanied by a 5-fold higher catalytic efficiency in the TG/Cyp2abfgs-null mice and was abolished by an antibody to CYP2B6. Phenobarbital cytochrome P450 family 2 subfamily B member 6 Homo sapiens