AS605240

AS-605240 is a potent and selective inhibitor of PI 3-kinase γ (PI3Kγ) with an IC50 of 8 nM. AS-605240 inhibits human recombinant PI3Kγ, α, β, and δ in an ATP-competitive manner with IC50 values of 8, 60, 270, and 300 nM, respectively. AS-605240 inhibits C5a-mediated phosphorylation of protein kinase B in RAW 264 cells with an IC50 value of 90 nM. In vivo, AS-605240 reduced RANTES-induced peritoneal neutrophil recruitment in a murine model of leukocyte chemotaxis with an ED50 value of 9.1 mg/kg.