The major cell-permeable diterpene isolated from the Indian plant Coleus forskohlii. At low doses, it acts as a positive inotropic agent. At higher doses, it serves as a hypotensive and vasodilatory agent due to its actions as a smooth muscle relaxant. No major side effects are observed at effective doses. Forskolins pharmacological activities are due to its activation of adenylate cyclase (EC50 = 4uM), resulting in increased cAMP levels. The exact mechanism of forskolins positive inotropic effect is unknown but may be related to a cAMP-dependent increase in Na+ permeability that results in indirect augmentation of Ca2+ release. Inhibits MAP kinase in rat renal mesangial cells (IC50 = 25uM). Also acts as a Hh pathway antagonist. Shown to inhibit apoptosis in cerebellar granule cells and to induce apoptosis in resting human B lymphocytes.
Formula:C₂₂H₃₄O₇
Molecular Weight:410.5
Storage and Stability:Store at -20°C under inert atmosphere. Protect from light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
