SB 203580 - CAS 152121-47-6 - Calbiochem (C15-1217-016)

General description

Reduces epirubicin-induced cell injury and caspase-3/7 activity. A highly specific, potent, cell-permeable, selective, reversible, and ATP-competitive inhibitor of p38 MAP kinase (IC₅₀ = 34 nM in vitro, 600 nM in cells). Does not significantly inhibit the JNK and p42 MAP kinase at 100 µM. Inhibits IL-1 and TNF-α production from LPS-stimulated human monocytes and the human monocyte cell line THP-1 (IC₅₀ = 50-100 nM). Inhibits bone morphogenetic protein-2-induced neurite outgrowth in PC12 cells. Also inhibits platelet aggregation caused by collagen (IC₅₀ = 0.2-1.0 µM) or the thromboxane analog U-46619 (Cat. No. 538944). A 1 mg/ml solution of SB 203580 (Cat. No. 559398) in anhydrous DMSO is also available.

Reduces epirubicin-induced cell injury and caspase-3/7 activity. A highly specific, potent, cell-permeable, selective, reversible, and ATP-competitive inhibitor of p38 kinase (IC₅₀ = 34 nM in vitro, 600 nM in cells). Also known as reactivating kinase (RK) and CSBP (cytokine synthesis anti-inflammatory drug binding protein). Does not significantly inhibit JNK or p42 MAP kinase even at 100 µM. Inhibits IL-1 and TNF-α production from LPS-stimulated human monocytes and the human monocyte cell line THP-1 (IC₅₀ = 50-100 nM). SB 203580 has also been shown to be an effective inhibitor of inflammatory cytokine production in vivo in both mice and rats.

Biochem/physiol Actions

Cell permeable: yes

Product competes with ATP.

Reversible: yes

Target IC₅₀: 34 nM against p38 MAP kinase in vitro, 600 nM in cells; 50-100 nM against IL-1 and TNF-α production from LPS-stimulated human monocytes and the human monocyte cell line THP-1; 0.2-1.0 µM against platelet aggregation caused by collagen

Warning

Toxicity: Irritant (B)

Other Notes

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Gallagher, T.F., et al. 1995. Bioorg. Med. Chem. Lett. 5, 1171.
Lee, J.C., et al. 1994. Nature 372, 739.

Legal Information

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