Home
Drugs
Targets
Pathways
Ontologies
Cyp450s
Adv.search
Help/FAQ

Drug-Target Interaction

Drug

show drug details
PubChem ID:9893571
Structure:
Synonyms:
(E)-3-(2-chloro-4-((3-(2,6-dichlorophenyl)-5-isopropylisoxazol-4-yl)methox
278779-30-9
AKOS005146035
BRD-K64245000-001-01-7
C15635
C412815
CHEMBL318457
EC-000.2402
EX-8455
GW 4064
GW-4064
GW-4064X
GW4064
I06-2246
MolPort-003-847-641
NCGC00167739-01
NCGC00167739-02

Target

show target details
Uniprot ID:MK03_HUMAN
Synonyms:
ERK-1
ERT2
Extracellular signal-regulated kinase 1
Insulin-stimulated MAP2 kinase
MAP kinase 1
MAPK 1
Microtubule-associated protein 2 kinase
Mitogen-activated protein kinase 3
p44-ERK1
p44-MAPK
EC-Numbers:2.7.11.24
Organism:Homo sapiens
Human
PDB IDs:2ZOQ
Structure:
2ZOQ

Binding Affinities:

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

References:

19085950
Bile acids activate fibroblast growth factor 19 signaling in human hepatocytes to inhibit cholesterol 7alpha-hydroxylase gene expression.. Kwang-Hoon Song; Tiangang Li; Erika Owsley; Stephen Strom; John Y L Chiang (2009) Hepatology (Baltimore, Md.) display abstract
Mouse fibroblast growth factor 15 (FGF15) and human ortholog FGF19 have been identified as the bile acid-induced intestinal factors that mediate bile acid feedback inhibition of cholesterol 7alpha-hydroxylase gene (C YP7A1) transcription in mouse liver. The mechanism underlying FGF15/FGF19 inhibition of bile acid synthesis in hepatocytes remains unclear. Chenodeoxycholic acid (CDCA) and the farnesoid X receptor (FXR)-specific agonist GW4064 strongly induced FGF19 but inhibited CYP7A1 messenger RNA (mRNA) levels in primary human hepatocytes. FGF19 strongly and rapidly repressed CYP7A1 but not small heterodimer partner (SHP) mRNA levels. Kinase inhibition and phosphorylation assays revealed that the mitogen-activated protein kinase/extracellular signal-regulated kinase 1/2 (MAPK/Erk1/2) pathway played a major role in mediating FGF19 inhibition of CYP7A1. However, small interfering RNA (siRNA) knockdown of SHP did not affect FGF19 inhibition of CYP7A1. Interestingly, CDCA stimulated tyrosine phosphorylation of the FGF receptor 4 (FGFR4) in hepatocytes. FGF19 antibody and siRNA specific to FGFR4 abrogated GW4064 inhibition of CYP7A1. These results suggest that bile acid-activated FXR is able to induce FGF19 in hepatocytes to inhibit CYP7A1 by an autocrine/paracrine mechanism. Conclusion: The hepatic FGF19/FGFR4/Erk1/2 pathway may inhibit CYP7A1 independent of SHP. In addition to inducing FGF19 in the intestine, bile acids in hepatocytes may activate the liver FGF19/FGFR4 signaling pathway to inhibit bile acid synthesis and prevent accumulation of toxic bile acid in human livers.