Cell-permeable. A selective protein kinase C (PKC) inhibitor (IC50 =0.66uM). Chelerythrine is at least 100-fold more selective for PKCs than for other kinases. It induces apoptotic cell death in polymorphonuclear leukocyte through activation of caspase-3. In addition, Chelerythrine treated cells underwent apoptosis, with features that suggest involvement of the mitochondrial pathway, and through a mechanism that involves inhibition of the anti-apoptotic inhibitor BclXL.Solubility:DMSO (>10mg/ml) or H2O (5mg/ml)Storage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile buffer or ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
