WYE-125132 (WYE-132)

For research use only.

Catalog No.S2661

3 publications

WYE-125132 (WYE-132) Chemical Structure

Molecular Weight(MW): 519.6

WYE-125132 (WYE-132) is a highly potent, ATP-competitive mTOR inhibitor with IC50 of 0.19 nM; highly selective for mTOR versus PI3Ks or PI3K-related kinases hSMG1 and ATR.

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10mM (1mL in DMSO) USD 560 In stock
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Selleck's WYE-125132 (WYE-132) has been cited by 3 publications

1 Customer Review

  • SW620 and SW620:8055R cells were treated with increasing concentrations of WYE-125132 for 24 hours and cell proliferation was assayed by [3H]thymidine incorporation. Results are the mean盋oV for three biological replicates from a single experiment; identical results were obtained in n=3 experiments.

    J Cell Sci 2014 127(Pt 4), 788-800. WYE-125132 (WYE-132) purchased from Selleck.

Purity & Quality Control

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Biological Activity

Description WYE-125132 (WYE-132) is a highly potent, ATP-competitive mTOR inhibitor with IC50 of 0.19 nM; highly selective for mTOR versus PI3Ks or PI3K-related kinases hSMG1 and ATR.
Features A highly potent, ATP-competitive, and specific mTOR kinase inhibitor.
mTOR [1]
(Cell-free assay)
0.19 nM
In vitro

WYE-125132 potently and ATP-competitively inhibits recombinant mTOR kinase with IC50 of 0.19 nM and also shows the high selectivity over various PI3Ks and a panel of 230 protein kinases. [1] In vitro, WYE-125132 exhibits a significant anti-proliferative activity against a panel of tumor cell lines with IC50 ranging from 2 nM (LNCap) to 380 nM (HTC116). Besides, WYE-125132 also causes cell cycle progression, induction of apoptosis, and inhibition of protein synthesis and cell size. [1] WYE-125132 results in a significant reduction in the synthesis of pre-tRNALeu by 72%, 80%, and 53% in actively proliferating cells of MG63, MDA361, and HEK293, respectively by inhibiting mTORC1. Moreover, WYE-125132 is also found to induce the dephosphorylation of Maf1 (negative regulator of Pol III transcription) and its accumulation in the nucleus. [2]

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID

... Click to View More Cell Line Experimental Data

In vivo WYE-125132 (5 mg/kg p.o.) produces significant antitumor activity and causes dose-dependent tumor growth delay in the PI3K/mTOR- and HER2-hyperactive MDA361 tumor model. In addition, WYE-125132 also shows potent antitumor efficacy in the PTEN-null glioma U87MG, non-small cell lung cancer H1975 and A549 models. [1]


Kinase Assay:[1]
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Kinase assays:

mTOR enzyme assays via dissociation-enhanced lanthanide fluorescent immunoassay (DELFIA), ATP matrix assays, and mTOR immune-complex kinase assays are performed as follows. The endogenous TOR of LNCap cell lysate is immunoprecipitated by anti-FRAP/TOR (N-19). Cell lysate (1.0 mg) is mixed with 4 μg antibody coupled to protein-G/A agarose in 1 mL lysis buffer. The immune-complexes are washed sequentially with lysis buffer, lysis buffer plus 500 mM KCl, and kinase buffer wash. The immune-complexes are subjected to kinase reaction for 30 minutes at 30 °C in a final volume of 50 μL containing 10 mM Hepes (pH 7.4), 50 mM NaCl, 50 mM β-glycerophosphate, and 0.5 μM microcystin LR, 1 mM DTT, 10 mM MnCl2, 100 μM ATP, 1 μg His6-S6K or 1 μg His6-4EBP1. Kinase reactions (immune-complex and purified enzymes) are terminated by NuPAGE LDS sample buffer and resolved in a 4-12% NuPAGE Bis-Tris gel for Western blotting with anti-P(T389)-p70S6K and anti-P(T46)-4EBP1, anti-FRAP/TOR (N-19), anti-FLAG M2, and anti-His6 (Clone His-1). In the radioactive assay, 10 μCi [γ-32P]ATP (3000 Ci/mmol) and 100 μM cold ATP are used. 32P-labeled products are resolved by SDS-PAGE and subjected to autoradiogram to Kodak X-ray films.
Cell Research:[1]
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  • Cell lines: MDA-MB-361, MDA-MB-231, MDA-MB-468, BT549, LNCap, A549, H1975, H157, H460, U87MG, A498, 786-O, HCT116, MG63, Rat1, HEK293, and HeLa
  • Concentrations: 0 to 10 μM
  • Incubation Time: 24 hours
  • Method: Cell lines of MDA-MB-361, MDA-MB-231, MDA-MB-468, BT549, LNCap, A549, H1975, H157, H460, U87MG, A498, 786-O, HCT116, MG63, Rat1, HEK293, and HeLa are obtained from the American Type Culture Collection. Cell growth assays and IC50 determination are described as follows. For tumor cell growth assays, cells are plated in 96-well culture plates at 1000 to 3000 cells per well for 24 hours, treated with DMSO or various doses of WYE-125132. Viable cell densities are determined three days later by MTS assay employing an assay kit following the kit assay protocol. The effect of each treatment is calculated as percent of control growth relative to the DMSO-treated cells grown in the same culture plate. Inhibitor dose response curves are plotted for determination of IC50 values.
    (Only for Reference)
Animal Research:[1]
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  • Animal Models: U87MG, MDA361, H1975, A549, A498, and 786-O cells are injected s.c. into the right flank of CD1 nu/nu mice.
  • Dosages: ≤50 mg/kg
  • Administration: Administered via i.v. or p.o.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 104 mg/mL (200.15 mM)
Water Insoluble
Ethanol Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
30% PEG400+0.5% Tween80+5% propylene glycol
For best results, use promptly after mixing.
30 mg/mL

* 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.

Chemical Information

Molecular Weight 519.6


CAS No. 1144068-46-1
Storage powder
in solvent
Synonyms N/A
Smiles CNC(=O)NC1=CC=C(C=C1)C2=NC3=C(C=N[N]3C4CCC5(CC4)OCCO5)C(=N2)N6CC7CCC(C6)O7

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Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
Dosage mg/kg Average weight of animals g Dosing volume per animal ul Number of animals
Step 2: Enter the in vivo formulation (Different batches have different solubility ratios, please contact Selleck to provide you with the correct ratio)
% DMSO % % Tween 80 % ddH2O

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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Frequently Asked Questions

  • Question 1:

    Whether the vehicle “30% PEG400+0.5% Tween80+5% Propylene glycol” you recommended for s2661 is a clear solution or not? What’s the suggested formula for i.p. injection?

  • Answer:

    The formula on our website “30% PEG400+0.5% Tween80+5% Propylene glycol” is not a clear solution and can be used for p.o. administration. For i.p. solution, there are two methods to prepare the solution: 1)2% DMSO+30% PEG 300+ddH2O, 2.5mg/ml, stable for 1h at RT; 2)2% DMSO+30% PEG 300+ 2% Tween80 +ddH2O, 2.5mg/ml, stable for 2h at RT.

mTOR Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID