CP 481715 a potent and selective CCR1 antagonist with potential therapeutic implications for inflammatory diseases. P-481,715 binds to human CCR1 with a Kd of 9.2 nm. and displaces 125I-labeled CCL3 from CCR1-transfected cells with an IC50 of 74 nm. CP-481,715 fully blocks the ability of CCL3 and CCL5 to stimulate receptor signaling (guanosine 5'-O-(thiotriphosphate) incorporation; IC50 = 210 nm), calcium mobilization (IC50 = 71 nm), monocyte chemotaxis (IC50 = 55 nm), and matrix metalloproteinase 9 release (IC50 = 54 nm). CP-481,715 retains activity in human whole blood, inhibiting CCL3-induced CD11b up-regulation and actin polymerization (IC50 = 165 and 57 nm, respectively) on monocytes. CP-481,715 inhibits cell infiltration and inflammatory responses in human CCR1 transgenic mice. References: Gilchrist A, Gauntner TD, Fazzini A, Alley KM, Pyen DS, Ahn J, Ha SJ, Willett A, Sansom SE, Yarfi JL, Bachovchin KA, Mazzoni MR, Merritt JR. Identifying bias in CCR1 antagonists using radiolabelled binding, receptor internalization, β-arrestin translocation and chemotaxis assays. Br J Pharmacol. 2014 Nov;171(22):5127-38. doi: 10.1111/bph.12835. PubMed PMID: 24990525; PubMed Central PMCID: PMC4253460.

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CAS：212790-31-3