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GSK461364

Cat. No. M1719

GSK461364 Structure
Size Price Availability Quantity
10mg USD 220 In stock
50mg USD 665 In stock
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Quality Control
  • Current batch:
  • Purity >99%
  • COA
  • MSDS
Biological Activity

GSK461364 is an ATP-competitive inhibitor of Plk1 and forms a rapidly reversible complex with Plk1. It has a 400-fold greater potency for Plk1 than for Plk2 and Plk3. In vitro, this compound showed antiproliferative activity in >120 cancer cell lines tested. GSK461364 demonstrated tumor growth inhibition in animal models. In these xenograft models, GSK461364 showed antitumor activity ranging from complete tumor growth inhibition to growth delay. Interestingly, the compound caused dose-dependent mitotic arrest in Colo205 xenografts in vivo.

Protocol
Cell Experiment
Cell lines MDA-MB-231, A549, and PC3 cell line
Preparation method Cell lines were obtained from American Type Culture Collection and grown in the recommended media at 37°C, 5% CO2 in a humidified incubator. Cells were plated in triplicate 96-well microtiter plates at 1,000 cells per well in culture media. GSK461364A dissolved in DMSO or negative control (0.1% DMSO) were added the following day, and one plate was harvested with 50 μL of CellTiter-Glo (Promega) for a time 0 (T = 0) measurement. Remaining duplicate cell plates were typically incubated for 72 h. Cells were then lysed with 50 μL CellTiter-Glo, and chemiluminescent signal was read on the Wallac EnVision 2100 plate reader. All data were normalized to signal at time of compound addition (T = 0). Curves were analyzed using the XLfit (IDBS Ltd.) curve-fitting tool for Microsoft Excel to determine the gI50 (concentration of 50% growth inhibition relative to T = 0 and Ymax values), the gI-maximum (concentration giving maximum growth inhibition), and the Ymin (bottom of the four-parameter curve at gI-maximum).
Concentrations 0~10 μM
Incubation time 72 h
Animal Experiment
Animal models mice bearing Colo205 tumor xenograft model
Formulation 4% DMA/Cremaphore (50:50), pH 5.6
Dosages every 2 d (q2dx6, q2dx12) or every 4 d (q4dx3) at nominal dose levels of 25, 50, and 100 mg/kg/dose
Administration i.p.
Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 543.6
Formula C27H28F3N5O2S
CAS Number 929095-18-1
Purity >99%
Solubility DMSO
Storage at -20°C
References

Pooled shRNA screen for sensitizers to inhibition of the mitotic regulator polo-like kinase (PLK1).
Liu-Sullivan et al. Oncotarget. 2011 Dec;2(12):1254-64. PMID: 22248814.

Phase I study of GSK461364, a specific and competitive Polo-like kinase 1 inhibitor, in patients with advanced solid malignancies.
Olmos et al. Clin Cancer Res. 2011 May 15;17(10):3420-30. PMID: 21459796.

Distinct concentration-dependent effects of the polo-like kinase 1-specific inhibitor GSK461364A, including differential effect on apoptosis.
Gilmartin AG, et al. Cancer Res. 2009 Sep 1;69(17):6969-77. PMID: 19690138.

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  Catalog
Abmole Inhibitor Catalog 2017




Keywords: GSK461364 supplier, PLK, inhibitors

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