A cell-permeable, bioavailable, non-toxic pyridinylthiophene-carboxamide compound that preferentially and reversibly inhibits the growth of malignant peripheral nerve sheath tumors (MPNSTs) in both human and murine models in a dose-dependent manner (EC₅₀ = 439 nM, 754 nM, and 1.0 µM in S462, SNF96.2, and sMPNST cells). Exhibits toxicity towards neurofibromatosis type 1 (Nf1) and p53 deficient MPNST cells, but does not affect normally dividing Schwann cells and mouse embryonic fibroblasts. Shown to reduce ATP consumption by all MPNST cells studied (EC₅₀ = 1.0 µM). Synergizes with PI-3 Kinase inhibitor, LY-294002 (Cat. Nos. 440202 & 440204) to block the growth of MPNST cells. Reduces the expression of cyclin A2, B1, D1, E, cdk4, and cdk6 and increases the expression of cdkn1a and cdkn2a in a dose dependent manner. Blocks cell cycle at G1/S phase leading to apoptosis in cancer cells. Displays favorable pharmacokinetic profile and is rapidly distributed from the plasma into sMPNST tissues and has a half-life of 6-8 hours in sMPNST tissue following its complete distribution. Reduces MPNST burden in a mouse allograft model and enhances survival (~40 mg/kg, i.p. in mice for 4 weeks).

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

Cell permeable: yes

Reversible: yes

Packaged under inert gas

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

Chau, V., et al. 2013. Cancer Res. 74, 586.

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

Toxicity: Standard Handling (A)