Thiorphan

Thiorphan is a selective neprilysin (NEP) inhibitor with an IC50 of 6.9 nM. Thiorphan competitively binds to NEP and blocks its activity, preventing the degradation of neuropeptides such as substance P (SP) and neurokinin NKA. In the field of neonatal brain injury research, Thiorphan can increase the levels of SP and NKA, activate NK1 and NK2 receptors and downstream transduction pathways, and inhibit excessive activation of NMDA receptors. Thus, Thiorphan can protect neocortical neurons from excitotoxic cell death. Thiorphan may also inhibit NEP from enhancing bronchoconstriction and can be used in the study of respiratory diseases[1][2][3].