MRT 199665 is a potent salt-inducible kinases (SIKs) inhibitor with IC50 of 110, 12, 43 nM for SIK1,2,3 respectively.
MRT 199665 also inhibits AMPKα1/α2 (both IC50=10 nM), MARK1/2/3/4 (both IC50=2 nM), NUAK1/2 (IC50=3/120 nM), and MELK (IC50=29 nM).
MRT 199665 elevates IL-10 production by inducing the dephosphorylation of CREB-regulated transcriptional coactivator 3 (CRTC3), increases LPS-stimulated IL-10 production and greatly suppressed proinflammatory cytokine secretion (IL-6, IL-12, and TNF) in macrophages.
