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European Journal Of Medicinal Chemistry
Che, J;Li, D;Hong, W;Wang, L;Guo, Y;Wu, M;Lu, J;Tong, L;Weng, Q;Wang, J;Dong, X;
The M2 polarized macrophages modulation has been described as a beneficial approach to facilitate the myelin repairing and inflammation microenvironment remodeling of multiple sclerosis (MS). Whereas, the M2 polarization involves complex mechanisms, and the modulators are still limited. As a protein kinase B (Akt) inhibitor, compound 2 was found promoting M2 polarization activity in our previous research, here we report the identification of a new modulator B9 with high M2-marker Arg1 upregulation activity, M1 polarization inhibition and ablated Akt1 inhibition activities. B9 has promising pharmacokinetic profiles, and significantly ameliorates the symptom and reduces demyelination in EAE mice. Moreover, the inflammation microenvironment is remodeled after B9 administration, with promoted M2-type macrophages and inhibited M1 polarization in the CNS and periphery, and suppressed the proinflammatory Th1 and Th17?cells responses. Therefore, the new macrophage M2 polarization modulator B9 could present a candidate for fulfilling the therapeutic strategies of MS.