The parmodulin NRD-21 is an allosteric inhibitor of PAR1 Gq signaling with improved anti-inflammatory activity and stability
摘要:
Novel analogs of the allosteric, biased PAR1 ligand ML161 (parmodulin 2, PM2) were prepared in order to identify potential anti-thrombotic and anti-inflammatory compounds of the parmodulin class with improved properties. Investigations of structure-activity relationships of the western portion of the 1,3-diaminobenzene scaffold were performed using an intracellular calcium mobilization assay with endothelial cells, and several heterocycles were identified that inhibited PAR1 at sub-micromolar concentrations. The oxazole NRD-21 was profiled in additional detail, and it was confirmed to act as a selective, reversible, negative allosteric modulator of PAR1. In addition to inhibiting human platelet aggregation, it showed superior anti-inflammatory activity to ML161 in a qPCR assay measuring the expression of tissue factor in response to the cytokine TNF-alpha in endothelial cells. Additionally, NRD-21 is much more plasma stable than ML161, and is a promising lead compound for the parmodulin class for anti-thrombotic and anti-inflammatory indications.
[EN] COMPOUNDS AND METHODS FOR TREATING DISEASES MEDIATED BY PROTEASE ACTIVATED RECEPTORS<br/>[FR] COMPOSÉS ET MÉTHODES DE TRAITEMENT DE MALADIES À MÉDIATION PAR DES RÉCEPTEURS ACTIVÉS PAR UNE PROTÉASE
申请人:BROAD INST INC
公开号:WO2012040636A2
公开(公告)日:2012-03-29
The invention relates to the use of a compound of Formula I for the treatment of protease-activated receptor mediated diseases by the administration of a compound of Formula I or a prodrug or metabolite thereof.