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Ko 143

Cat. No. M6870

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Ko 143 Structure
Size Price Availability Quantity
5mg USD 90  USD90 In stock
10mg USD 150  USD150 In stock
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Quality Control & Documentation
Biological Activity

Ko 143 is a potent and selective breast cancer resistance protein multidrug transporter (BCRP) inhibitor (EC90 = 26 nM). Displays > 200-fold selectivity over P-gp and MRP-1 transporters. Increases intracellular drug accumulation and reverses BCRP-mediated multidrug resistance. Inhibits ABCB1 and ABCC1 at higher concentrations. Rapidly metabolized in rat plasma.

Product Citations
Protocol (for reference only)
Cell Experiment
Cell lines MDCK II parent cells and ABCG2-transduced MDCK II cells
Preparation method Reduction of mitoxantrone efflux from ABCG2-transduced MDCK II cells treated with Ko143 (1) or Ko143 analogues 3, 20, 21, and 22 as determined by mitoxantrone fluorescence. Cells were incubated with test compounds and mitoxantrone for 60 min. The mitoxantrone concentration was 1 μM in all experiments.
Concentrations 1 μM
Incubation time 60 min
Animal Experiment
Animal models Female Abcb1a/b(−/−) (Mdr1a/b(−/−) mice
Formulation DMSO concentration of 5% (v/v) with a solution containing 10% (v/v) Tween 80, 25% (v/v) PEG 300, and 65% (v/v) sterile water.
Dosages 1, 7, 15 mg/kg
Administration i.v. injection
Chemical Information
Molecular Weight 469.57
Formula C26H35N3O5
CAS Number 461054-93-3
Solubility (25°C) DMSO 23 mg/mL
Storage Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
References

[1] Burkhart, et al. Cancer Res. Small-molecule multidrug resistance-associated protein 1 inhibitor reversan increases the therapeutic index of chemotherapy in mouse models of neuroblastoma.

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Keywords: Ko 143 supplier, BCRP/ABCG2/MXR/ABCP, inhibitors, activators

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