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Tariquidar

Catalog No. T6287 CAS 206873-63-4

Synonyms: XR9576

Tariquidar (XR9576)(Kd=5.1 nM) is a specific and effective non-competitive inhibitor of P-glycoprotein. It can reverse drug resistance in MDR cell Lines.

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Tariquidar, CAS 206873-63-4

Pack Size	Availability	Price/USD
5 mg	In stock	$ 45.00
10 mg	In stock	$ 77.00
25 mg	In stock	$ 132.00
50 mg	In stock	$ 239.00
100 mg	In stock	$ 401.00
1 mL * 10 mM (in DMSO)	In stock	$ 70.00

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Purity: 100%

Purity: 99.17%

Purity: 99%

Purity: 98.34%

Biological Description

Chemical Properties

Storage & Solubility Information

Description	Tariquidar (XR9576)(Kd=5.1 nM) is a specific and effective non-competitive inhibitor of P-glycoprotein. It can reverse drug resistance in MDR cell Lines.
Targets&IC50	P-gp:5.1 nM(Kd)
In vitro	Tariquidar displays high-affinity binding to P-gp with Bmax of 275 pmol/mg. Tariquidar shows non-competitive interaction with the P-gp substrates vinblastine and paclitaxel. Tariquidar increases the steady-state accumulation of these cytotoxics in CHr<>/supB30 cells to levels observed in non-P-gp-expressing AuxB1 cells with EC50 of 487 nM. Tariquidar is able to inhibit the vanadate-sensitive ATPase activity of P-gp by 60-70%, with potent IC50 values of 43 nM. [1] Tariquidar may inhibit other resistance mechanisms at higher concentrations. 1 μM Tariquidar abrogates ABCG2 (BCRP)-mediated resistance to camptothecins in vitro. [2] Tariquidar potentiates the cyto-toxicity of several drugs including doxorubicin, paclitaxel, etoposide, and vincristine; complete reversal of resistance is achieved in the presence of 25- 80 nM Tariquidar. In MC26, a murine colon carcinoma cell line with intrinsic chemoresistance, the doxorubicin IC50 is fivefold lower in the presence of 0.1 μM Tariquidar (36 vs 7 nM). In murine mammary carcinoma, human small-cell lung carcinoma and human ovarian carcinoma cell lines with acquired chemotherapeutic resistance (EMT6/AR1.0, H69/LX4 and 2780 AD), the in vitro doxorubicin IC50 is 22-150-fold lower in the presence of 0.1 μM Tariquidar. P-gp inhibition persists for 23 h after removal of Tariquidar from the culture system. [3] Tariquidar restored the cyto-toxicity of doxorubicin and vinblastine in the National Cancer Institute (NCI)/ADRRES multicellular tumor spheroid model derived from the MCF7WT breast cancer cell line. [4]
In vivo	Tariquidar (2- 8 mg/kg p.o.) is found to significantly potentiate the antitumor activity of doxorubicin (5 mg/kg, i.v.) against MC26 murine colon carcinoma in vivo. In human carcinoma xenografts, coadministration of XR9576 (6 -12 mg/kg p.o.) fully restored the antitumor activity of paclitaxel, etoposide, and vincristine against two highly resistant MDR human tumor xenografts (2780AD, H69/LX4) in nude mice. [3]
Kinase Assay	Steady-state drug accumulation assay: AuxB1 and CHrB30 cells are grown to confluency in 12-well (24 mm) tissue culture dishes and the steady-state accumulation of [3H]-vinblastine is measured. Accumulation is initiated by the addition of 0.1 μ Ci [3H]-vinblastine and unlabelled vinblastine to a final concentration of 100 nM . The accumulation of [3H]-paclitaxel is measured using 0.1 μ Ci [3H]-paclitaxel and unlabelled drug to a final concentration of 1 μM . Cells are incubated in a reaction volume of 1 mL for 60 min at 37 ℃ under 5% CO2 in order to reach steady-state. The effect of the modulators XR9576 on [3H]-ligand accumulation is investigated in the concentration range 10-9 - 10-6 M. Modulators are added from a DMSO stock giving a final solvent concentration of 0.2 % (v/v). Following cell harvesting, accumulated drug is measured by liquid scintillation counting and normalized for cell protein content. Plots of amount accumulated as a function of modulator concentration are fitted with the general dose-response equation: Y={(a-b)/(1+(X/c)d)}+b Where: Y=response; a=initial response; b=final response; c=EC50 concentration; d=slope value; X=drug concentration.
Cell Research	Cells are seeded into 96-well plates at 800/well, in 100 μL of medium and incubated for 4 h at 37 ℃. Varying concentrations of modulator or solvent control (50 μL/well) are subsequently added and incubated for an additional 1 h before the addition of the cytotoxic drug. The cytotoxic drug (50 μL) is added to give a range of final concentrations in quadruplicate wells. After incubation for an additional 4 days, cell proliferation of adherent cells is assessed using the sulforhodamine B assay.(Only for Reference)

Synonyms	XR9576
Molecular Weight	646.73
Formula	C38H38N4O6
CAS No.	206873-63-4

Storage

Powder: -20°C for 3 years | In solvent: -80°C for 1 year

Solubility Information

H2O: < 1 mg/mL (insoluble or slightly soluble)

Ethanol: < 1 mg/mL (insoluble or slightly soluble)

DMSO: 49 mg/mL (75.8 mM)

References and Literature

1. Martin C, et al. Br J Pharmacol, 1999, 128(2), 403-411. 2. Robey RW, et al. Cancer Res, 2004, 64(4), 1242-1246. 3. Mistry P, et al. Cancer Res, 2001, 61(2), 749-758. 4. Walker J, et al. Eur J Cancer, 2004, 40(4), 594-605. 6. Kao YH, et al. Regulation of P-glycoprotein expression in brain capillaries in Huntington's disease and its impact on brain availability of antipsychotic agents risperidone and paliperidone. J Cereb Blood Flow Metab. 2016 Aug;36(8):1412-23. 7. Matzneller P, et al. Pharmacokinetics of the P-gp Inhibitor Tariquidar in Rats After Intravenous, Oral, and Intraperitoneal Administration. Eur J Drug Metab Pharmacokinet. 2018 Apr 3.

Related compound libraries

This product is contained In the following compound libraries：

Anti-Cancer Drug Library Anti-Cancer Active Compound Library Inhibitor Library Anti-Cancer Clinical Compound Library Drug Repurposing Compound Library Bioactive Compounds Library Max Neuronal Signaling Compound Library Target-Focused Phenotypic Screening Library Clinical Compound Library Anti-Cancer Compound Library

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Keywords

Tariquidar 206873-63-4 Membrane transporter/Ion channel Neuroscience P-gp Cluster of differentiation 243 MDR1 inhibit XR-9576 XR9576 Multidrug resistance protein 1 CD243 Inhibitor ABCB1 P-glycoprotein Pgp XR 9576 inhibitor

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