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Drug-Target Interaction

Drug

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PubChem ID:3823
Structure:
Synonyms:
1-acetyl-4-(4-{[2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy}phenyl)piperazine
79156-75-5
CHEBI:48339
Fungarest
Fungoral
Ketoconazol
Ketoconazole
Ketoderm
KW 1414
NCI60_002728
NSC317629
Oprea1_683648
piperazine,
Side-Effects:
Side-EffectFrequency
abdominal pain0
nausea0
pain0
papilledema0
paresthesia0
pruritus0
swelling0
thrombocytopenia0
erythema0
urticaria0
vomiting0
chills0
photophobia0
pyogenic granuloma0
dry skin0
scalp seborrhea0
eye swelling0
acne0
leukopenia0
keratoconjunctivitis sicca0
alopecia0
anaphylaxis0
hemolytic anemia0
arrhythmia0
dermatitis0
contact dermatitis0
diarrhea0
dizziness0
somnolence0
rash0
fever0
gynecomastia0
headache0
hypersensitivity0
hypertriglyceridemia0
impetigo0
impotence0
allergic reaction0

Target

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Uniprot ID:CP1A2_HUMAN
Synonyms:
CYPIA2
Cytochrome P450 1A2
P(3)450
P450 4
P450-P3
EC-Numbers:1.14.14.1
Organism:Homo sapiens
Human
PDB IDs:2HI4
Structure:
2HI4

Binding Affinities:

Ki: Kd:Ic 50:Ec50/Ic50:
----

References:

9351907
Metabolism of the antiandrogenic drug (Flutamide) by human CYP1A2.. M S Shet; M McPhaul; C W Fisher; N R Stallings; R W Estabrook (1997) Drug metabolism and disposition: the biological fate of chemicals display abstract
The antiandrogenic drug, flutamide, is widely used in the treatment of carcinoma of the prostate. The present study examines the metabolism of flutamide by human liver microsomes and purified recombinant human cytochrome P450s (CYP), expressed as fusion proteins. These studies show the principal role of CYP1A2 in the metabolism of flutamide to 2-hydroxyflutamide. A minor metabolite is formed during the metabolism of flutamide by CYP3A4 in the presence of an excess of added purified NADPH-P450 reductase. The metabolism of flutamide is inhibited by low concentrations of alpha-naphthoflavone and ketoconazole. Other substrates of CYP1A2, such as phenacetin, imipramine, caffeine, and estradiol, are also inhibitors of flutamide metabolism by CYP1A2. Of interest is the inhibition of flutamide metabolism by its metabolite, 2-hydroxyflutamide, and the inhibition of the 2- and 4- hydroxylation of estradiol by flutamide. CV1 cells do not metabolize flutamide to 2-hydroxyflutamide. In assays performed using this cell line transfected with the cDNA for the androgen receptor, flutamide is a pure antagonist, and 2-hydroxyflutamide, while a more potent androgen receptor (AR) antagonist, activates the AR at higher concentrations. Stable expression of CYPIA2 in these CV1 cells causes flutamide to exhibit agonistic properties at higher concentrations, a behavior not exhibited by cells stably transfected only with the expression vector encoding the AR. These findings raise the possibility that increased conversion of flutamide to 2-hydroxyflutamide or accumulation of 2-hydroxyflutamide in cells may contribute to the anomalous responses to flutamide that are observed in some advanced prostate cancers.