Home PI3K/Akt/mTOR mTOR inhibitor WYE-125132 (WYE-132) For research use only.

WYE-125132 (WYE-132)

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.

WYE-125132 (WYE-132) Chemical Structure

WYE-125132 (WYE-132) Chemical Structure

CAS: 1144068-46-1

Selleck's WYE-125132 (WYE-132) has been cited by 9 Publications

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Purity & Quality Control

Batch: S266101 DMSO] 104 mg/mL] false] Water] Insoluble] false] Ethanol] Insoluble] false Purity: 100%
100

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Signaling Pathway

mTOR Signaling Pathways

mTOR Signaling Pathway

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Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
LNCAP cells Cytotoxicity assay Cytotoxicity against human LNCAP cells, IC50=0.002 μM 20089401
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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.
Targets
mTOR [1]
(Cell-free assay)
0.19 nM
In vitro
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]
Kinase Assay 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 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.
In Vivo
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]
Animal Research 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.

Chemical Information & Solubility

Molecular Weight 519.6 Formula

C27H33N7O4
CAS No. 1144068-46-1 SDF Download WYE-125132 (WYE-132) SDF
Smiles CNC(=O)NC1=CC=C(C=C1)C2=NC3=C(C=NN3C4CCC5(CC4)OCCO5)C(=N2)N6CC7CCC(C6)O7
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 104 mg/mL ( (200.15 mM)； Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble


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In vivo
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Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

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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.

Handling Instructions

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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.

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