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SB 203580 (Synonyms: SB 203580; RWJ 64809)

Catalog No.GC13595

SB 203580 is a specific inhibitor of p38-MAPK (Mitogen-activated Protein Kinase) pathway [1,2].

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SB 203580 Chemical Structure

Cas No.: 152121-47-6

Size Price Stock Qty
10mM (in 1mL DMSO)
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Sample solution is provided at 25 µL, 10mM.

Product has been cited by 8 publications

Description Protocol Chemical Properties Product Documents

SB 203580 is a specific inhibitor of p38-MAPK (Mitogen-activated Protein Kinase) pathway [1,2]. SB 203580 inhibits p38 kinase in a manner competitive with ATP with a Ki of 21 nm [2].

SB 203580 inhibit the proliferation of human breast cancer cell line MDA-MB-231 with the IC50 value of was 85.1 µM [3]. SB 203580 inhibited IL-10 production by monocytic WEHI 274.3 cells expressing WT-p38α MAPK in a dose-dependent manner with greater than 95% inhibition at 5 µm and with an IC50 of 0.1µM [4]. IL-2-induced proliferation of primary human T cells, murine CT6 T cells, or BAF F7 B cells is prevented by the p38 MAP kinase inhibitor SB 203580 with an IC50 of 3-5µM [5].

SB-203580 demonstrated moderate to high clearance in all species tested in vivo, with non-linear elimination observed in the rat at plasma concentrations > 1000ng ml -1. Although good solution bioavailability was observed in non-rodents (78% in dog, 32% in monkey), lower and more variable bioavailability was observed in the rat and mouse (3-48%) [6]. SB 203580 treatment significantly improve the white blood cell (WBC) and platelet counts decreased significantly in the DENV-infected mice, suggesting leucopenia and thrombocytopenia, respectively [7].


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