TAMOXIFEN PHARMACOKINETICS PATHWAY (PW:0000838)

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Description

Tamoxifen (TAM, TX), an non-steroidal anti-estrogen, is one of the most commonly used drugs for the treatment and prevention of breast cancer. Estrogen is involved in the growth and development of breast cancers; estrogen mediated transcription is constitutively active in more than 50% of cases. Initially considered an antagonist, TAM is currently classified as a selective estrogen receptor modulator (SERM). It binds competitively to the estrogen receptors (ERs) acting as an antagonist in breast

Pathway Diagram:

Ariadne Genomics Inc. CYP3A4 SULT1A1 4-OH-TAM UGTs endoxifen UGTs endoxifen CYPs 4-OH-TAM CYPs DMT CYPs ABCB1 Sult2a1 Cyp3a2 tamoxifen ---> DMT PAPS(2) UDPGA 4-OH-TAM ---> 4-OH-TAM-gluc PAPS(1) ---> alpha-OH-TAM-S tamoxifen ---> alpha-OH-TAM tamoxifen ---> 4-OH-TAM 4-OH-TAM ---> endoxifen UDPGA ---> endoxifen-gluc alpha-OH-TAM ---> alpha-OH-TAM-S alpha-OH-TAM-S ---> DNA adducts endoxifen elimination endoxifen ---> endoxifen elimination PAPS(2) ---> 4-OH-TAM-S UDPGA ---> 4-OH-TAM-gluc endoxifen ---> endoxifen-gluc DMT ---> endoxifen 4-OH-TAM ---> 4-OH-TAM-S 4-OH-TAM-gluc endoxifen-gluc hSULT2A1 DMT alpha-OH-TAM PAPS(1) alpha-OH-TAM-S DNA adducts endoxifen 4-OH-TAM 4-OH-TAM-S tamoxifen
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Genes in Pathway:

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tamoxifen pharmacokinetics pathway term browser
Symbol Object Name JBrowse Chr Start Stop Reference
G Cyp2b3 cytochrome P450, family 2, subfamily b, polypeptide 3 JBrowse link 1 83,163,103 83,236,615 RGD:10402751
G Cyp2d4 cytochrome P450, family 2, subfamily d, polypeptide 4 JBrowse link 7 123,599,264 123,608,436 RGD:10402751
G Cyp3a2 cytochrome P450, family 3, subfamily a, polypeptide 2 JBrowse link 12 11,641,500 11,677,818 RGD:5129544
G Cyp3a23/3a1 cytochrome P450, family 3, subfamily a, polypeptide 23/polypeptide 1 JBrowse link 12 11,053,888 11,082,742 RGD:5129544
G Cyp3a9 cytochrome P450, family 3, subfamily a, polypeptide 9 JBrowse link 12 19,074,288 19,114,491 RGD:10402751
G Esr1 estrogen receptor 1 JBrowse link 1 41,192,029 41,594,799 RGD:10402751
G Fmo1 flavin containing monooxygenase 1 JBrowse link 13 80,712,885 80,745,095 RGD:10402751
G Fmo3 flavin containing monooxygenase 3 JBrowse link 13 80,837,418 80,856,214 RGD:10402751
G Sult1a1 sulfotransferase family 1A member 1 JBrowse link 1 198,100,586 198,104,106 RGD:10402751
G Sult2a1 sulfotransferase family 2A member 1 JBrowse link 1 76,558,721 76,614,315 RGD:5129555
G Ugt1a5 UDP glucuronosyltransferase family 1 member A5 JBrowse link 9 95,256,628 95,302,822 RGD:10402751

Additional Elements in Pathway:

(includes Gene Groups, Small Molecules, Other Pathways..etc.)
Object TypePathway ObjectPathway Object Description
Small MoleculePAPS3'-phosphoadenosine-5'-phosphosulfate
Small MoleculeDMTN-desmethyltamoxifen
Gene Groupendoxifen CYPsthe set of human cytochrome P450 enzymes involved in the conversion of DMT and 4-OH-DMT to tamoxifen
Gene Group4-OH-TAM CYPsthe set of human cytochrome P450 enzymes involved in the conversion of tamoxifen to 4-OH-TAM
Gene Group4-OH-TAM UGTsthe set of human UDP-glucuronosyltransferase enzymes involved in the conjugation of 4-OH-TAM metabolites
Gene Groupendoxifen UGTsthe set of human UDP-glucuronosyltransferase enzymes involved in the conjugation of endoxifen metabolites
Gene GroupDMT CYPsthe set of rat and human cytochrome P450 enzymes involved in the conversion of tamoxifen to DMT
Small MoleculeUDPGAuridine diphosphate glucuronic acid

Pathway Gene Annotations

Pathway Annotations Associated with Genes in the tamoxifen pharmacokinetics pathway
Pathway TermsGene Symbols
acetylsalicylic acid pharmacodynamics pathwayCyp2b3
antipyrine drug pathwayCyp2b3
arachidonic acid metabolic pathwayCyp2b3
artemether pharmacokinetics pathwayCyp3a9
ascorbate and aldarate metabolic pathwayUgt1a5
bile acid transport pathwaySult2a1
bisphenol A response pathwayEsr1
carbamazepine pharmacokinetics pathwayCyp2b3 , Cyp3a9
celecoxib pharmacodynamics pathwayCyp2b3 , Cyp2d4
celecoxib pharmacokinetics pathwayCyp2d4
citalopram pharmacodynamics pathwayCyp2d4
citalopram pharmacokinetics pathwayCyp2d4
clomipramine pharmacokinetics pathwayCyp2d4
clopidogrel pharmacodynamics pathwayCyp2b3 , Cyp3a9
clopidogrel pharmacokinetics pathwayCyp2b3 , Cyp3a9
codeine and morphine pharmacodynamics pathwayCyp2d4
codeine and morphine pharmacokinetics pathwayCyp2d4
cyclophosphamide pharmacodynamics pathwayCyp2b3
cyclophosphamide pharmacokinetics pathwayCyp2b3
desipramine pharmacodynamics pathwayCyp2d4
desipramine pharmacokinetics pathwayCyp2d4
diclofenac pharmacodynamics pathwayCyp2b3
diflunisal pharmacodynamics pathwayCyp2b3
doxepin pharmacokinetics pathwayCyp2d4
estradiol biosynthetic pathwaySult2a1
estrogen signaling pathwayEsr1
etodolac pharmacodynamics pathwayCyp2b3
etoposide pharmacodynamics pathwayCyp3a9
etoposide pharmacokinetics pathwayCyp3a9
fenoprofen pharmacodynamics pathwayCyp2b3
fluoxetine pharmacodynamics pathwayCyp2d4 , Cyp3a9
fluoxetine pharmacokinetics pathwayCyp2d4 , Cyp3a9
flurbiprofen pharmacodynamics pathwayCyp2b3
follicle-stimulating hormone signaling pathwayEsr1
forkhead class A signaling pathwayEsr1
histamine signaling pathway, immunologicalEsr1
ibuprofen pharmacodynamics pathwayCyp2b3
ifosfamide pharmacodynamics pathwayCyp2b3 , Cyp3a9
ifosfamide pharmacokinetics pathwayCyp2b3 , Cyp3a9
imipramine pharmacodynamics pathwayCyp2d4
imipramine pharmacokinetics pathwayCyp2d4
indometacin pharmacodynamics pathwayCyp2b3
indometacin pharmacodynamics pathwayCyp2b3
insulin-like growth factor signaling pathwayEsr1
irinotecan pharmacodynamics pathwayCyp3a9
irinotecan pharmacokinetics pathwayCyp3a9
ketoprofen pharmacodynamics pathwayCyp2b3
ketorolac pharmacodynamics pathwayCyp2b3
lamivudine pharmacokinetics pathwaySult1a1
leukotriene C4 synthase deficiency pathwayCyp2b3
linoleic acid metabolic pathwayCyp3a2 , Cyp3a23/3a1 , Cyp3a9
lornoxicam pharmacodynamics pathwayCyp2b3
luteinizing hormone signaling pathwayEsr1
magnesium salicylate pharmacodynamics pathwayCyp2b3
mefenamic acid pharmacodynamics pathwayCyp2b3
meloxicam pharmacodynamics pathwayCyp2b3
methadone pharmacodynamics pathwayCyp2b3 , Cyp2d4
methadone pharmacokinetics pathwayCyp2b3 , Cyp2d4
mycophenolic acid pharmacokinetics pathwayCyp3a9
nabumetone pharmacodynamics pathwayCyp2b3
naproxen pharmacodynamics pathwayCyp2b3
neviparine pharmacokinetics pathwayCyp2b3 , Cyp2d4 , Cyp3a9
nicotine pharmacodynamics pathwayCyp2b3 , Fmo3 , Ugt1a5
nicotine pharmacokinetics pathwayCyp2b3 , Fmo3 , Ugt1a5
O-linked glycan biosynthetic pathwayUgt1a5
paracetamol drug pathwayCyp2b3
paracetamol pharmacokinetics pathwayCyp2d4 , Sult1a1 , Sult2a1
pentose and glucuronate interconversion pathwayUgt1a5
phase I biotransformation pathway via cytochrome P450Cyp2b3 , Cyp2d4 , Cyp3a2 , Cyp3a23/3a1 , Cyp3a9 , Fmo1 , Fmo3 , Ugt1a5
phenytoin pharmacodynamics pathwayUgt1a5
piroxicam pharmacodynamics pathwayCyp2b3
porphyrin and chlorophyll metabolic pathwayUgt1a5
retinol metabolic pathwayCyp2b3 , Cyp3a2 , Cyp3a23/3a1 , Cyp3a9 , Ugt1a5
salicylic acid pharmacodynamics pathwayCyp2b3
serotonin signaling pathway via receptors engaging G alphas protein familyEsr1
sodium salicylate pharmacodynamics pathwayCyp2b3
sorafenib pharmacokinetics pathwayCyp2b3
starch and sucrose metabolic pathwayUgt1a5
steroid hormone biosynthetic pathwayCyp3a2 , Cyp3a23/3a1 , Cyp3a9 , Ugt1a5
sulfite oxidase deficiency pathwaySult1a1
sulfur metabolic pathwaySult1a1
sulindac pharmacodynamics pathwayCyp2b3
tamoxifen pharmacodynamics pathwayCyp2b3 , Cyp2d4 , Cyp3a9 , Esr1 , Fmo1 , Fmo3 , Sult1a1 , Ugt1a5
tamoxifen pharmacokinetics pathwayCyp2b3 , Cyp2d4 , Cyp3a2 , Cyp3a23/3a1 , Cyp3a9 , Esr1 , Fmo1 , Fmo3 , Sult1a1 , Sult2a1 , Ugt1a5
teniposide pharmacodynamics pathwayCyp3a9
teniposide pharmacokinetics pathwayCyp3a9
tenoxicam pharmacodynamics pathwayCyp2b3
testosterone biosynthetic pathwaySult2a1
tiaprofenic acid pharmacodynamics pathwayCyp2b3
tolmetin pharmacodynamics pathwayCyp2b3
tramadol pharmacokinetics pathwayCyp2b3 , Cyp2d4
valdecoxib pharmacodynamics pathwayCyp2b3
valproic acid pharmacokinetics pathwayCyp2b3
venlafaxine pharmacokinetics pathwayCyp2d4
vitamin A deficiency pathwayCyp2b3 , Cyp3a9
Phenotype Annotations Associated with Genes in the tamoxifen pharmacokinetics pathway

References Associated with the tamoxifen pharmacokinetics pathway:

Ontology Path Diagram:

paths to the root

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