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Target intelligence / Profile preview
Activator Protein 1
- Molecular classification
- Transcription factor
01
Overview
Activator protein 1 (AP-1) is a transcription factor complex that regulates gene expression in response to a wide range of stimuli. It is a dimeric complex formed by members of the Jun, Fos, ATF, Maf, and JDP protein families. AP-1 plays critical roles in cellular processes such as differentiation, proliferation, apoptosis, and oncogenic transformation. Activated AP-1 binds to specific DNA sequences (TREs and CREs) in promoter regions of target genes. Dysregulation of AP-1 has been implicated in cancer development/progression due to its role in cell cycle control and apoptosis resistance.
02
Mechanism of action
Modulation of AP-1 activity often involves targeting upstream kinases in the MAPK and PI3K/Akt pathways, or direct inhibition of AP-1 dimerization or DNA binding.
03
Biological functions
Cell proliferationDifferentiationApoptosisImmune responsesTumorigenesisStress response
04
Disease associations
CancerInflammationInfection
05
Safety considerations
Due to its broad role in cellular processes, targeting AP-1 can lead to off-target effects and potential toxicity. Inhibition of AP-1 may have unwanted effects on normal cell function, while activation can promote tumorigenesis in certain contexts.
06
Interacting drugs
TPA (Phorbol esters)
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