LY2228820 is a novel and potent p38MAPK inhibitor (the IC50 for p38αMAPK and p38βMAPK were 7 nM and 3 nM, respectively).
Product Name: Ralimetinib 2MsOH(LY2228820) |Catalog Number: DC8630 |CAS 862507-23-1 |Other names: Ralimetinib dimesylate; LY2228820 dimesylate; LY2228820 2MsOH; LY 2228820; LY-2228820 |Chemical Name: |Molecule Formular: C26H37FN6O6S2 |MW: 612.74
LY2228820 is a novel and potent p38MAPK inhibitor (the IC50 for p38αMAPK and p38βMAPK were 7 nM and 3 nM, respectively).in vitro: LY2228820 inhibits p38α, as well as the level of phosphoMAPKAPK-2 (pMK2) in RAW 264.7 cells, with IC50 values of 7 nM and 34.3 nM, respectively. Furthermore, LY2228820 inhibits lipopolysaccharide (LPS)-induced TNFα formation in murine peritoneal macrophages, with IC50 of 5.2 nM. n multiple myeloma (MM) cells, including INA6, RPMI-8226, U266, and RPMI-Dox40, LY2228820 (200 nM–800 nM) significantly blocks p38MAPK signaling, as revealed by its inhibition on phosphorylation of HSP27, a downstream target of p38MAPK, without affecting the expression level of HSP27. LY2228820 (200 nM–400 nM) enhances bortezomib-induced cytotoxicity and apoptosis, but LY2228820 alone doesn't inhibit the growth of MM.1S cells. LY2228820 (200 nM–800 nM) also inhibits secretion of IL-6 and MIP-1α in long-term BM stromal cells (LT-BMSCs), BM mononuclear cells (BMMNCs), peripheral blood (PB) CD138+, CD138? or PB CD14+ cells. LY2228820 (400 nM–800 nM) also blocks osteoclastogenesis from CD14+ cells.
in vivo: In LPS-induced mice, LY2228820 effectively inhibits the formation of TNFα with a threshold minimum 50% effective dose (TMED50) less than 1 mg/kg. In a rat model of collagen-inducedarthritis (CIA), LY2228820 displays potent effects on paw swelling, bone erosion, and cartilage destruction, with a threshold minimum 50% effective dose (TMED50)of 1.5 mg/kg.
For research and scientific purpose only, not for human use.
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