PNRI-299 is a selective AP-1 transcription inhibitor with IC50 of 20 uM without affecting NF-kappaB transcription (up to 200 μM) or thioredoxin (up to 200 μM).
FOSL1 Degrader 1 (4) is a potent T-5224-based PROTAC that selectively degrades FOSL1 (AP-1), suppressing cancer stemness gene expression in head and neck squamous cell carcinoma (HNSCC). It effectively inhibits tumor growth and eliminates cancer stem cells, showing 30–100 times greater efficacy than T-5224.
