SB202190 is a highly selective, potent and cell-permeable inhibitor of p38 MAP kinase. The inhibitory activity of SB202190 on CREB phosphorylation was independent of p38, but instead correlated with inhibition of casein kinase 1 (CK1) in vitro.
CAS Number: 152121-30-7
Molecular Weight: 331.34
Chemical Name: 4-(4-(4-fluorophenyl)-5-(pyridin-4-yl)-1H-imidazol-2-yl)phenol
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: Soluble in DMSO, not in water
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
How to use
Treatment of cells with SB202190 significantly inhibits both basal and anti-Fas antibody-induced MAPKAPK 2 activity in a dose-dependent manner as measured in immune complex kinase assays with GST-hsp27 as a substrate. Jurkat cells are treated with SB202190 or left untreated. After 24 h, cells are harvested, and the activity of CPP32-like caspases in cell extracts is measured by cleavage of the fluorescent peptide DEVD-AMC, which is a specific substrate of CPP32-like caspases. The cleavage of DEVD-AMC is significantly increased in cells treated with SB202190 but not in the control.
In HCT-116-derived colorectal tumors, administration of SB202190, Bay 43-9006 or a combination of both give similar results in terms of measurement of external tumor size (around 58% growth reduction compare with control tumors). SB202190 induces a 28% reduction of tumor growth, compare with a 31% reduction promoted by Bay 43-9006, while combination of both drugs reduce tumor growth by 55%. Compare to the model group, the SB202190 group exhibits significantly shorter escape latencies in the Morris water maze hidden platform trials (P<0.01) and longer times in the original platform quadrant during probe trials (P<0.01). The SB202190 group also shows significantly reduced neuronal apoptosis in the hippocampus compared to VaD model rats (P<0.01) as well as higher (antiapoptotic) Bcl-2 expression and lower (proapoptotic) caspase-3 expression (P<0.01 for both). In conclusion, blockade of the p38 MAPK signaling pathway by SB202190 following permanent 2-OV reduced apoptosis of hippocampal neurons and rescued spatial learning and memory deficits.
- Glover M, Sweeny C, Davis B, O'Shaughnessy KM. A Single Amino Acid Substitution Makes WNK4 Susceptible to SB 203580 and SB 202190. Open Med Chem J. 2010 Sep 3;4:57-61. doi: 10.2174/1874104501004010057. PubMed PMID: 21249167; PubMed Central PMCID: PMC3023092.
- Shanware NP, Williams LM, Bowler MJ, Tibbetts RS. Non-specific in vivo inhibition of CK1 by the pyridinyl imidazole p38 inhibitors SB 203580 and SB 202190. BMB Rep. 2009 Mar 31;42(3):142-7. PubMed PMID: 19336000.
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