1010731-97-1

MLN-3897, also known as AVE-9897, is a C-C Motif Chemokine Receptor 1 (CCR1) antagonist potentially for the treatment of multiple sclerosis and rheumatoid arthritis. MLN3897 abrogates its effects by inhibiting Akt signaling. Moreover, MM cell-to-OC adhesion was abrogated by MLN3897, thereby inhibiting MM cell survival and proliferation. MLN3897 demonstrates significant impairment of OC formation (by 40%) and function (by 70%), associated with decreased precursor cell multinucleation and down-regulation of c-fos signaling.

CCR1 antagonist 10 (example 1) is a potent and orally active CCR1 antagonist. CCR1 antagonist 10 inhibits 125I-MIP-1α binding to THP-1 cell membranes with an Ki value of 2.3 nM[1].

CCR1

[1] Kenneth G. Carson, et al. Ccr1 antagonists for the treatment of i.a. demyelinating inflammatory disease. WO2004043965A1.