Cell Signaling Technology

Product Pathways - MAPK Signaling

SP600125 #8177

Molecular Formula:
C14H8N2O
Molecular Weight:
220.23 g/mol
Purity:
>99%

Directions for Use

SP600125 is supplied as a lyophilized powder. For a 25 mM stock, reconstitute the 10 mg in 1.82 ml DMSO. Working concentrations and length of treatment can vary depending on the desired effect, but it is typically used as a pre-treatment at 25-50 μM for 15-45 minutes prior to treating with a stimulator. Soluble in DMSO at 65 mg/ml; poorly soluble in ethanol and water.

Western Blotting

Western Blotting

Western blot analysis of extracts from 293T cells, untreated or treated with anisomycin (25 μg/ml) for the indicated times either with or without SP600125 pre-treatment (50 μM, 40 min), using Phospho-JunB (Thr102/Thr104) (D3C6) Rabbit mAb #8053 (upper) or JunB (C37F9) Rabbit mAb #3753 (lower).

Western Blotting

Western Blotting

Western blot analysis of extracts from 293T cells, untreated or treated with anisomycin (25 μg/ml, 15 min) either with or without SP600125 pre-treatment (50 μM, 40 min), using Phospho-c-Jun (Ser73) (D47G9) XP® Rabbit mAb #3270 (upper) or c-Jun (60A8) Rabbit mAb #9165 (lower).

Structure

Structure

Chemical structure of SP600125.


Background

Novel, potent, and selective JNK-1,-2, and -3 inhibitor, SP600125 is an ATP-competetive inhibitor effective on a range of kinases and enzymes. In cells, SP600125 caused a dose-dependent inhibition of the phosphorylation of c-Jun, the expression of inflammatory genes IL-2, COX-2, TNF-α, IFN-γ, and blocked the activation and differentiation of primary human CD4 cell cultures (1). SP600125 has also demonstrated inhibitory effects on tumor cell proliferation, endothelial cell migration, and tumor growth as well as blocking tumor and endothelial cells in the G2 phase of the cell cycle (2).

  1. Bennett, B.L. et al. (2001) Proc Natl Acad Sci U S A 98, 13681-6.
  2. Ennis, B.W. et al. (2005) J Pharmacol Exp Ther 313, 325-32.

Application References

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For Research Use Only. Not For Use In Diagnostic Procedures.

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