Biochem/physiol Actions

Primary TargetTOPK/PBK

Cell permeable: yes

General description

A cell-permeable, ATP competitive, reversible indolizinoquinoxalin derivative that acts as a specific inhibitor of T-LAK-cell-originated protein kinase (TOPK/PBK)(IC₅₀ = 2 µM). Does not affect the activities of ERK1, JNK1, and p38 MAP kinases. At higher concentrations (~ 5 µM) also inhibits MEK1 activity. Shown to suppress the proliferation of HCT116 colon cancer cell line and block tumor growth in colon cancer xenograft models in a dose-dependent manner. Diminishes TOPK activity only in cells over-expressing TOPK without significantly affecting cells with low levels of expression. Also shown to increase the expression of p53, active caspase-7, cleaved poly-ADP-Ribose polymerase, and increase the phosphorylation of Cdc2.Please note that the molecular weight for this compound is batch-specific due to variable water content.

A cell-permeable, selective, ATP competitive, reversible inhibitor of T-LAK-cell-originated protein kinase (IC₅₀ = 2 µM).

A cell-permeable, ATP competitive, reversible indolizinoquinoxalin derivative that acts as a specific inhibitor of T-LAK-cell-originated protein kinase (TOPK/PBK)(IC₅₀ = 2 µM). Does not affect the activities of ERK1, JNK1, and p38 MAP kinases. At higher concentrations (~ 5 µM) also inhibits MEK1 activity. Shown to suppress the proliferation of HCT116 colon cancer cell line and block tumor growth in colon cancer xenograft models in a dose-dependent manner. Diminishes TOPK activity only in cells over-expressing TOPK without significantly affecting cells with low levels of expression. Also shown to increase the expression of p53, active caspase-7, cleaved poly-ADP-Ribose polymerase, and increase the phosphorylation of Cdc2.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Other Notes

Kim, D., et al. 2012, Cancer Res.72, 3060.

Packaging

5 mg in Glass bottle

Reconstitution

Following reconstitution, aliquot and freeze (-29°C). Stock solutions are stable for up to 3 months at -20°C.

Use only fresh DMSO for reconstitution.

Warning

Toxicity: Standard Handling (A)