Title : Cytochrome P4502A5 expression and inducibility by phenobarbital is modulated by cAMP in mouse primary hepatocytes.

Pub. Date : 1994 Nov 30

PMID : 7528014






10 Functional Relationships(s)
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1 CYP2A5-mediated coumarin 7-hydroxylase (COH) activity was retained in simple culture conditions for at least 96 hours and the activity was inducible up to 33-fold by phenobarbital (PB). Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
2 CYP2A5-mediated coumarin 7-hydroxylase (COH) activity was retained in simple culture conditions for at least 96 hours and the activity was inducible up to 33-fold by phenobarbital (PB). Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
3 CYP2A5-mediated coumarin 7-hydroxylase (COH) activity was retained in simple culture conditions for at least 96 hours and the activity was inducible up to 33-fold by phenobarbital (PB). Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
4 CYP2A5-mediated coumarin 7-hydroxylase (COH) activity was retained in simple culture conditions for at least 96 hours and the activity was inducible up to 33-fold by phenobarbital (PB). Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
5 CYP2A5-mediated coumarin 7-hydroxylase (COH) activity was retained in simple culture conditions for at least 96 hours and the activity was inducible up to 33-fold by phenobarbital (PB). Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
6 CYP2A5-mediated coumarin 7-hydroxylase (COH) activity was retained in simple culture conditions for at least 96 hours and the activity was inducible up to 33-fold by phenobarbital (PB). Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
7 The constitutive activity and inducibility of COH was totally blocked by treatment of hepatocytes with actinomycin D, and short initial treatment with cycloheximide caused superinducibility when co-administered with PB. Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
8 Administration of dibutyryl cAMP, forskolin, and 3-isobutyl-1-methylxanthine (IBMX) enhanced both basal and PB-induced COH activities and CYP2A5 mRNA levels, indicating that cAMP plays a major role in CYP2A5 expression. Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
9 Administration of dibutyryl cAMP, forskolin, and 3-isobutyl-1-methylxanthine (IBMX) enhanced both basal and PB-induced COH activities and CYP2A5 mRNA levels, indicating that cAMP plays a major role in CYP2A5 expression. Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus
10 Administration of dibutyryl cAMP, forskolin, and 3-isobutyl-1-methylxanthine (IBMX) enhanced both basal and PB-induced COH activities and CYP2A5 mRNA levels, indicating that cAMP plays a major role in CYP2A5 expression. Phenobarbital cytochrome P450, family 2, subfamily a, polypeptide 5 Mus musculus