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| | In Vitro Assay |
| Description: | The in vitro affinity of the compounds of the present invention for the CXCR1 and CXCR2 receptors was determined on a functional test of the .beta.-arrestin recruitment type after receptor activation.It was demonstrated that the activation by CXCL8 of the CXCR2 receptor in cells of the PathHunter HEK293-CXCR2 line or of the CXCR1 receptor in cells of the U2OS h CXCR1 .beta.-arrestin line results in the recruitment of .beta.-arrestin (Richardson et al. 2003 Role of the cytoplasmic tails of CXCR1 and CXCR2 in mediating leukocyte migration, activation, and regulation. J. Immunol. 170: 2904-2911.)In order to evaluate the direct interaction of the CXCR2 or CXCR1 receptor with .beta.-arrestin 2, a .beta.-arrestin 2 recruitment test for CXCR2 or CXCR1 based on of .beta.-galactosidase enzyme complementation (Olson K R, Eglen R M. Beta galactosidase complementation: a cell-based luminescent assay platform for drug discovery. Assay Drug Dev Technol. 2007 February; 5(1); 137-44). |
| Affinity data for this assay | |
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