| 生化机理 |
PIK-75 Hydrochloride is a hydrochloride salt form of PIK-75, which is a preferential p110α/γ forms of PI3K inhibitor with IC50 of 6, 1300, 76, 510 nM for p110α, p110β, p110γ, p110δ, respectively. PIK-75 is a PI3K p110α specific inhibitor and belongs to the class of imidazo[1, 2-a]pyridines. It inhibited cell proliferation of A375 cells (IC50=58nM) in vitro and reduced tumor growth in a mouse xenograft model. Besides inhibition of PI3Kα, PIK-75 also inhibited DNA-PK with an IC50 of 2 nM, but not mTORC1 and mTORC2. PIK-75-mediated anti-inflammatory effects are associated with dramatic inhibition of AKT phosphorylation, IKK activation and NF-κB transcription. |
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