LY294002

Catalog No.S1105

LY294002 is the first synthetic molecule known to inhibit PI3Kα/δ/β with IC50 of 0.5 μM/0.57 μM/0.97 μM in cell-free assays, respectively; more stable in solution than Wortmannin, and also blocks autophagosome formation.

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LY294002 Chemical Structure

LY294002 Chemical Structure
Molecular Weight: 307.34

Validation & Quality Control

Cited by 70 publications:

13 customer reviews :

Quality Control & MSDS

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Product Information

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  • Research Area
  • Inhibition Profile
  • LY294002 Mechanism

Product Description

Biological Activity

Description LY294002 is the first synthetic molecule known to inhibit PI3Kα/δ/β with IC50 of 0.5 μM/0.57 μM/0.97 μM in cell-free assays, respectively; more stable in solution than Wortmannin, and also blocks autophagosome formation.
Targets p110α [1]
(Cell-free assay)
p110δ [1]
(Cell-free assay)
p110β [1]
(Cell-free assay)
IC50 0.5 μM 0.57 μM 0.97 μM
In vitro LY294002 inactivates Akt/PKB, consequently inhibiting cell proliferation and inducing apoptosis. LY294002 demonstrates a remarkable growth-inhibitory and apoptosis-inducing effect in these colon cancer cell lines, with decreased expression of phosphorylated Akt (Ser473). [2]LY294002 induces marked nuclear pyknosis and diminished cytoplasmic volume in the tumor cells. Thus, LY294002 markedly inhibits ovarian cancer cell proliferation in vitro. LY294002 induces specific G1 arrest in cell growth, leading to almost complete inhibition of melanoma cell proliferation and partial inhibition of MG-63 (osteosarcoma cell line) proliferation. The effect of LY294002 on cell cycle progression may provide insights into a possible link between the PI3K activation pathway and cancer cell cycle regulation. [3]
In vivo LY294002 also results in suppression of tumor growth and induction of apoptosis, especially in the LoVo tumors, and therefore shows remarkable effectiveness in the mouse peritonitis carcinomatosa model. [2] LY294002 significantly inhibits growth and ascites formation of ovarian carcinoma. [3]
Features

Protocol(Only for Reference)

Kinase Assay: [4]

kinase assays PI3K inhibition by LY294002 is determined in a radiometric assay using purified, recombinant enzymes with 1 μM ATP. The kinase reaction is carried out for 1 hour at room temperature (24oC) and is terminated by addition of PBS. IC50 values are subsequently determined using a sigmoidal dose–response curve fit (variable slope). CK2 and GSK3β (glycogen synthase kinase 3β) inhibition is established by kinase selectivity screening. LY294002 is tested against the Upstate panel of kinases in 10 μM ATP.

Cell Assay: [2]

Cell lines Colon cancer cell lines DLD-1, LoVo, HCT15, and Colo205
Concentrations 0–50 μM
Incubation Time 0–48 hours
Method 1.0×105 cells (100 μL volume/well) are inoculated into 96-well microtiter plates. LY294002 is added to triplicate wells and cultured at 37oC for 0–48 hours. After treatment, 10 μL of Premix WST-1 are added to each microculture well, and the plates are incubated for 60 minutes at 37oC, after which absorbance at 450 nm is measured with a microplate reader.

Animal Study: [3]

Animal Models Two groups of athymic nude mice (5–7 weeks) are inoculated i.p. with OVCAR-3 cells
Formulation Dissolved in DMSO plus 0.25 ml of PBS
Dosages 0–100 mg/kg
Administration Administered via i.p.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesMouseRatRabbitGuinea pigHamsterDog
Weight (kg)0.020.151.80.40.0810
Body Surface Area (m2)0.0070.0250.150.050.020.5
Km factor36128520
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.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)
1

References

[1] Chaussade C, et al. Biochem J, 2007, 404(3), 449-58.

[2] Semba S, et al. Clin Cancer Res, 2002, 8(6), 1957-63.

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Chemical Information

Download LY294002 SDF
Molecular Weight (MW) 307.34
Formula

C19H17NO3

CAS No. 154447-36-6
Storage 3 years -20℃powder
6 months-80℃in solvent
Synonyms SF 1101, NSC 697286
Solubility (25°C) * In vitro DMSO 36 mg/mL (117.13 mM)
Ethanol 21 mg/mL (68.32 mM)
Water <1 mg/mL (<1 mM)
In vivo 4% DMSO+30% PEG 300+5% Tween 80+ddH2O 5mg/mL
* <1 mg/ml means slightly soluble or insoluble.
* 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 Name 2-morpholino-8-phenyl-4H-chromen-4-one

Frequently Asked Questions

  • Question 1
    I want to buy a inhibitor that can inactivates Akt/PI3K. I notice the protocol of LY294002 (catalog no. s1105) says it will inactivates Akt/PKB. Is LY294002 available for Akt/PI3K inhibition?

    Answer: LY294002 is the first synthetic molecule known to inhibit PI3Kα/δ/β with IC50 of 0.5 μM/0.57 μM/0.97 μM, respectively. It can inhibit PI3K/AKT. PKB is the alternative name of AKT.

  • Question 2
    What is the suggested formulation of this compound for mouse injection(i.p.)?

    Answer: It can be dissolved in 4% DMSO/30% PEG 300/5% Tween 80/ddH2O at 5 mg/ml clearly, and the concentration of DMSO is safe for in vivo experiments.

Tech Support

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