LIM Kinase Inhibitor I, LIMKi 3-Calbiochem

C₁₇H₁₄Cl₂F₂N₄OS

431.29

MFCD17019327

A cell-permeable pyrazolylthiazolo-isobutyramide compound that acts as a potent LIM kinase inhibitor (IC₅₀ = 7 and 8 nM against LIMK1 and LIMK2, respectively) and effectively suppresses cellular cofilin phosphorylation (IC₅₀ ~ 1 µM in A549 and MDA-MB-231 cultures) without affecting tubulin polymerization or inducing cytotoxicity (EC₅₀ >10 µM in A549 proliferation and colony formation assays). Shown to effectively destabilize F-actin structure in MDA-MB-231 breast cancer cells (3 to 10 µM) with concomitant blockage of invadopedia-mediated ECM degradation (13% and 10% of control, respectively, by 3 and 10 µM inhibitor) and invasion (45% and 7% of control invasion rate, respectively, by 3 and 10 µM inhibitor). Although reported to exhibit affinity toward AMPKα1 and AMPKα2 in T7 phage-based competition binding studies, inhibitory activity of LIMKi 3 against AMPKα1/2 is not yet directly demonstrated.
A cell-permeable pyrazolylthiazolo-isobutyramide compound that acts as a potent LIM kinase inhibitor (IC₅₀ = 7 and 8 nM against LIMK1 and LIMK2, respectively) and effectively suppresses cellular cofilin phosphorylation (IC50 ~ 1 µM in A549 and MDA-MB-231 cultures) without affecting tubulin polymerization or inducing cytotoxicity (EC₅₀ >10 µM in A549 proliferation & colony formation assays). Shown to effectively destabilize F-actin structure in MDA-MB-231 breast cancer cells (3 to 10 µM) with concomitant blockage of invasion (by 93% at 10 µM).

Cell permeable: yes
Target IC₅₀: 7 and 8 nM against LIMK1 and LIMK2, respectively
Primary Target
LIMK1 and LIMK2
Reversible: yes
Secondary Target
AMPKA1, AMPKA2, DDR1, PAK3, DCAMKL2

Toxicity: Standard Handling (A)

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Scott, R.W., et al. 2010. J. Cell. Biol.191, 169.

Ross-Macdonald, P., et al. 2008. Mol. Cancer Ther.7, 3490.

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

100

≥95% (HPLC)

powder

Calbiochem^®

OK to freeze
protect from light

beige

DMSO: 100 mg/mL

ambient

2-8℃

ClC1=CC=CC(Cl)=C1N2N=C(C=C2C3=CN=C(NC(C(C)C)=O)S3)C(F)F

10 mg in Glass bottle
Packaged under inert gas

11 - Combustible Solids

WGK 2