Name: Aprepitant
Price: 223.00 USD

- Overview
  - Please contact us at for specific academic pricing.
    
    Background
    
    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].
    
    [1] Tattersall FD1, Rycroft W, Cumberbatch M, Mason G, Tye S, Williamson DJ, Hale JJ, Mills SG, Finke PE, MacCoss M, Sadowski S, Ber E, Cascieri M, Hill RG, MacIntyre DE, Hargreaves RJ. The novel NK1 receptor antagonist MK-0869 (L-754,030) and its water soluble phosphoryl prodrug, L-758,298, inhibit acute and delayed cisplatin-induced emesis in ferrets. Neuropharmacology. 2000 Feb 14;39(4):652-63.
    [2] Muñoz M1, Rosso M. The NK-1 receptor antagonist aprepitant as a broad spectrum antitumor drug. Invest New Drugs. 2010 Apr;28(2):187-93. doi: 10.1007/s10637-009-9218-8. Epub 2009 Jan 17.
- Properties
  - Alternative Name
    
    5-[[(2R,3S)-2-[1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholin-4-yl]methyl]-1,2-dihydro-1,2,4-triazol-3-one
    
    CAS Number
    
    170729-80-3
    
    Molecular Formula
    
    C23H21F7N4O3
    
    Molecular Weight
    
    534.43
    
    Appearance
    
    A solid
    
    Purity
    
    98.62%
    
    Solubility
    
    ≥26.72 mg/mL in DMSO; insoluble in H2O; insoluble in EtOH
    
    Storage
    
    Store at -20°C
    
    * For Research Use Only
- Reference
  - 1. Kwatra SG, Boozalis E, et al. "Proteomic and Phosphoproteomic Analysis Reveals that Neurokinin-1 Receptor (NK1R) Blockade with Aprepitant in Human Keratinocytes Activates a Distinct Subdomain of EGFR Signaling: Implications for the Anti-Pruritic Activity of NK1R Antagonists." Medicines (Basel). 2019 Dec 9;6(4). pii: E114. PMID:31835310

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