914291-61-5

PS372424, a three amino-acid fragment of CXCL10, is a specific human CXCR3 agonist with anti-inflammatory activity. PS372424 prevents human T-cell migration in a humanized model of arthritic inflammation[1][2].

PS372424 is a highly specific agonist of human CXCR3 th at potently inhibits the migration of activated T cells toward the chemokine mixture in synovial fluid from patients with active rheumatoid arthritis. PS372424 activated ERK in T cells with a similar potency and kinetic to the natural ligand CXCL11.

Human CXCR3

[1] Boyé K, et al. The role of CXCR3/LRP1 cross-talk in the invasion of primary brain tumors. Nat Commun. 2017 Nov 17;8(1):1571. DOI:10.1038/s41467-017-01686-y
[2] O'Boyle G, et al. Chemokine receptor CXCR3 agonist prevents human T-cell migration in a humanized model of arthritic inflammation. Proc Natl Acad Sci U S A. 2012 Mar 20;109(12):4598-603. DOI:10.1073/pnas.1118104109
[3] Stroke IL, et al. Identification of CXCR3 receptor agonists in combinatorial small-molecule libraries. Biochem Biophys Res Commun. 2006 Oct 13;349(1):221-8. DOI:10.1016/j.bbrc.2006.08.019