FCPR03

FCPR03 is a potent and selective phosphodiesterase 4 (PDE4) inhibitor with IC₅₀ values of 60 nM, 31 nM and 47 nM for PDE4 catalytic domain, PDE4B1 and PDE4D7, respectively. FCPR03 displays at least 2100-fold selectivity over other PDEs (PDE1-3 and PDE5-11). FCPR03 has anti-inflammatory, neuroprotective and antidepressant-like effects^[1][2]. In Vitro: FCPR03 (5-20 μM; 30 hours; HT-22 cells) treatment increases cell viability (oxygen-glucose deprivation (OGD)-induced) in a dose-dependent manner, and 10 μM FCPR03 shows significant protective effects^[1].
FCPR03 (20 μM; 30 hours; HT-22 cells) treatment protects against OGD-induced cellular apoptosis in both HT-22 cells and cortical neurons. The levels of mitochondrial membrane potential (MMP) and ROS are also restored by FCPR03^[1].
FCPR03 (20 μM; 30 hours; HT-22 cells) treatment increases the levels of phosphorylated AKT, glycogen synthase kinase-3β (GSK3β), and β-catenin^[1].
In Vivo: FCPR03 (1.25-5 mg/kg; intraperitoneal injection; once; adult male Sprague-Dawley rats) treatment reduces the infarct volume and improves neurobehavioral outcomes in rats following MCAO. FCPR03 increases the levels of phosphorylated AKT, GSK3β and β-catenin within the ischemic penumbra of rats following cerebral ischemia-reperfusion^[1].