In Vivo (Add solvents to the product individually and in order.)
Homogeneous suspension
CMC-NA
≥5mg/ml
Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)
Preparing Stock Solutions
Biological Activity
Description
Padnarsertib (KPT 9274) is an orally bioavailable small molecule that is a non-competitive dual inhibitor of PAK4 and NAMPT. It shows an IC50 of ~120 nM for NAMPT in a cell-free enzymatic assay.
Targets
PAK4 (Cell-free assay)
NAMPT (Cell-free assay)
~120 nM
In vitro
KPT-9274 interferences with PAK4 and NAD biosynthetic pathways results in reduction of G2/M transit as well as induction of apoptosis and decrease in cell invasion and migration in several human RCC cell lines. The inhibition of the PAK4 pathway by KPT-9274 attenuates nuclear β-catenin as well as the Wnt/β-catenin targets cyclin D1 and c-Myc.
In Vivo
KPT-9274 administration to a 786-O (VHL-mut) human RCC xenograft model leads to dose-dependent inhibition of tumour growth with no apparent toxicity. It also shows remarkable anti-tumour activity in sub-cutaneous xenograft models of pancreatic ductal adenocarcinoma (PDAC) cell lines and cancer stem cells as a single agent. KPT-9274 possesses desirable PK properties and is well tolerated in mice with the absence of any signs of toxicity when 200 mg/kg daily is administered either intravenously or orally.
The in vitro cell migration and invasion assays were performed using transwell chambers. For the transwell migration assay, 1.5×104 cells were seeded on top of the polycarbonate filters, and 0.6 ml of growth medium with DMSO or KPT-9274 (1μM and 5μM) was added to both the upper and lower wells. After incubation for 12 hours, the filters were swabbed with a cotton swab, fixed with methanol, and then stained with Giemsa solution. For the in vitro invasion assay, filters were coated with Matrigel, and 2.5×104 cells were seeded onto the Matrigel and incubated for 20 hours. The cells attached to the lower surface of the filter were counted under a light microscope (10× magnification).
Caractérisation moléculaire de la résistance aux inhibiteurs de PARP dans le cancer épithélial de l'ovaire par le biais de modèles cellulaires diversifiés
[ University of Montreal, 2022, ]
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