Identification of novel agonists of the integrin CD11b/CD18.

نویسندگان

  • Mohd Hafeez Faridi
  • Dony Maiguel
  • Constantinos J Barth
  • Darren Stoub
  • Ruth Day
  • Stephan Schürer
  • Vineet Gupta
چکیده

We report the identification of novel small molecule agonists of integrin CD11b/CD18, which increased, in a dose-dependent manner, the adhesion of the integrin CD11b/CD18 expressing cells to two physiologically relevant ligands: Fibrinogen and iC3b. Compound 6 showed an ex vivo EC(50) of 10.5 microM and in vitro selectivity for binding to the recombinant alphaA-domain of CD11b/CD18. In silico docking experiments suggest that the compounds recognized a hydrophobic cleft in the ligand-binding alphaA-domain, implying an allosteric mechanism of modulation of integrin affinity by this novel compound.

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عنوان ژورنال:
  • Bioorganic & medicinal chemistry letters

دوره 19 24  شماره 

صفحات  -

تاریخ انتشار 2009