BX471 blocks CCR1 and downregulates the mRNA expression of ICAM-1, P-selectin and E-selectin.
[3] It decreases the inflammatory responses in sepsis,
[3] prevents monocyte recruitment in inflammation sites in rheumatoid arthritis patients
[4] and inhibits interstitial leukocyte recruitment and fibrosis in mouse model of lupus nephritis.
[5]BX471 is an orally active, CCR-1 specific antagonist. It displaces the endogenous CCR-1 ligands MIP-1a, RANTES and MCP-3 (Ki range 1-5 nM). BX471 inhibits CCR-1 effects in leukocytes, including calcium mobilization and migration.