化学性质：                                                                                                             

产品描述：                                                                                                            

Aprepitant (also known as MK-0869) is a novel and highly selective Neurokinin-1 (NK-1) receptor antagonist that inhibits the activity of substance P (SP), an undecapeptide belonging to the tachykinin family of peptides, on the NK-1 receptor with the dissociation constant Kd of 86 pM for human NK-1 receptor and the half maximal inhibition concentration IC50 of 0.1 nM, 4 nM and 0.7 nM for human, rat and ferret NK-1 receptors respectively [1,2].

Since SP has been demonstrated to induce cell proliferation in several human cancer cell lines with overexpressed NK-1 receptors, aprepitant has also been found to concentration-dependently induce growth inhibition in a variety of tumor cell lines, including glioma (GAMG), neuroblastoma (SKN-BE2, IMR-32 and KELLY), retinoblastoma (Y-79 and WERI-Rb-1), pancreas carcinoma (PA-TU-8902 and CAPAN-1), larynx carcinoma (HEp-2), gastric carcinoma (23132-87) and colon carcinoma (SW-403), with IC50 of 33.1 μΜ, 24.6 μΜ, 19.6 μΜ, 27.7 μΜ, 30.4 μΜ, 23 μΜ, 31.2 μΜ, 27.4 μΜ, 22.7 μΜ, 24.2 μΜ and 30.5 μΜ respectively [2].

特别提醒：