Sphingosine Kinase-2 Inhibitor, K145

A cell permeable, orally bioavailable thiazolidine-2,4-dione derivative that acts as a selective, sphingosine competitive inhibitor of spingosine Kinase -2 (SphK2; IC₅₀ = 4.3 µM; Ki = 6.4 µM), but does not affect the activities of sphingosine kinase-1, ceremide kinase, and ceramide synthase even at high concentration (~10 micro;M). Shown to inhibit the growth of U937 human leukemic monocyte lymphoma cells by inducing apoptosis and inhibiting the phosphorylation of ERK and Akt. Blocks the growth of U937 cells in nude mice and inhibits the growth of JC tumor cells in BALB/c mice without any apparent toxicity.

Please note that the molecular weight for this compound is batch-specific due to variable water content.

Cell permeable: yes

Primary Target
Sphk2

Packaged under inert gas

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 2 months at -20°C.

Liu, K., et al. 2013. PLos One8, e56471.

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

Toxicity: Standard Handling (A)