A66

Catalog No.S2636

A66 is a potent and specific p110α inhibitor with IC50 of 32 nM in a cell-free assay, >100 fold selectivity for p110α over other class-I PI3K isoforms.

Price Stock Quantity  
USD 270 In stock
USD 170 In stock
USD 320 In stock
USD 970 In stock
Bulk Inquiry

Massive Discount Available

Free Overnight Delivery on all orders over $ 500.

A66 Chemical Structure

A66 Chemical Structure
Molecular Weight: 393.53

Validation & Quality Control

3 customer reviews :

Quality Control & MSDS

Related Compound Libraries

A66 is available in the following compound libraries:

PI3K Inhibitors with Unique Features

  • Pan PI3K Inhibitor

    LY294002 Pan-PI3Kα/δ/β inhibitor, IC50=0.5 μM/0.57 μM/0.97 μM.

  • Most Potent PI3K Inhibitor

    Duvelisib (IPI-145, INK1197) PI3K δ, IC50=1 nM.

  • FDA-approved Pi3K Inhibitor

    CAL-101 (Idelalisib, GS-1101) Approved by FDA for Relapsed Chronic Lymphocytic Leukemia, Follicular Lymphoma and Small Lymphocytic Lymphoma.

  • Newest PI3K Inhibitor

    GSK2636771 Potent, orally bioavailable, PI3Kβ-selective inhibitor, sensitive to PTEN null cell lines.

Product Information

  • Compare PI3K
    Compare PI3K Products
  • Research Area
  • Inhibition Profile

Product Description

Biological Activity

Description A66 is a potent and specific p110α inhibitor with IC50 of 32 nM in a cell-free assay, >100 fold selectivity for p110α over other class-I PI3K isoforms.
Targets p110α [1]
(Cell-free assay)
PI4Kβ [1]
(Cell-free assay)
C2β [1]
(Cell-free assay)
p110δ [1]
(Cell-free assay)

 View  More

IC50 32 nM 236 nM 462 nM >1.25 μM
In vitro In addition to the wild-type p110α, A66 also potently inhibits the oncogenic forms of p110α such as p110α E545K and p110α H1047R with IC50 of 30 nM and 43 nM, respectively. Unlike PIK-75, A66 displays >100 fold selectivity for p110α over other class-I PI3K isoforms. Among the class-II PI3Ks, class-III PI3K and PI4Ks, A66 only exhibits limited cross-reactivity with the class-II PI3K PI3KC2β and the PI4Kβ isoform of PI4K with IC50 of 462 nM and 236 nM, respectively. A66 exhibits no inhibitory activity against other lipid kinases or the related kinases DNA-PK and mTOR. A66 has a higher degree of specificity compared with PIK-75 when tested at 10 μM against two large panels of 110 protein kinases and 318 kinases. Inhibition of p110α alone by A66 treatment is sufficient to block insulin signalling to Akt/PKB in certain cell lines that harbor H1047R mutations in PIK3CA and have high levels of p110α and class-Ia PI3K activity. [1] A66 treatment at 0.7 μM induces a 75-80% reduction in focus formation by the highly transforming p85α iSH2 mutants KS459delN, DKRMN-S560del, and K379E, and reduces the phosphorylation of Akt on T308 by all p85 mutants. [2]
In vivo A single dose of A66 at 100 mg/kg induces a profound reduction in the phosphorylation of Akt/PKB and p70 S6 kinase, but not of ERK, in SK-OV-3 tumour tissue in vivo at both 1 hour and 6 hours after dosing. A66 dosed at 100 mg/kg once daily (QD) for 21 days or 75 mg/kg twice daily (BID) for 16 days induces a significant delay in growth of SK-OV-3 xenografted tumors with average TGI of 45.9% and 29.9%, respectively, which is even greater than that induced by the well-established pan-PI3K inhibitor BEZ-235. QD dosing of A66 in the HCT-116 xenograft model also induces a significant reduction in tumour volume with TGI of 77.2%, but causes a non-significant reduction in tumor volume in the U87MG xenograft model. [1] Administration of A66 at 10 mg/kg in male CD1 mice induces significant impairments in the ITT (insulin tolerance test) and GTT (glucose tolerance test), and an increase in glucose production during a PTT (pyruvate tolerance test), almost to the same level as the pan-PI3K inhibitors. [3]
Features Highly selective for the p110α isoform.

Protocol(Only for Reference)

Kinase Assay: [1]

PI3K (human) HTRF Assay The p110α isoform is produced in-house by co-expressing full-length human p85α with the indicated human full-length catalytic subunit containing a histidine tag at the N-terminus to allow purification. The p110α is titrated and used at a concentration between EC65-EC80 values. IC50 value is evaluated using the PI3K (human) HTRF Assay.

Animal Study: [1]

Animal Models Age-matched specific pathogen-free Rag1-/- or NIH-III mice inoculated subcutaneously with U87MG, SK-OV-3 or HCT-116 cells
Formulation Formulated in 20% 2-hydroxypropyl-β-cyclodextrin in water
Dosages 100 mg/kg once daily (QD) or 75 mg/kg twice daily (BID)
Administration Intraperitoneal injection

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] Jamieson S, et al. Biochem J, 2011, 438(1), 53-62.

[2] Sun M, et al. Proc Natl Acad Sci U S A, 2010, 107(35), 15547-15552.

view more

Chemical Information

Download A66 SDF
Molecular Weight (MW) 393.53
Formula

C17H23N5O2S2

CAS No. 1166227-08-2
Storage 3 years -20℃powder
6 months-80℃in solvent
Synonyms N/A
Solubility (25°C) * In vitro DMSO 79 mg/mL (200.74 mM)
Ethanol 1 mg/mL (2.54 mM)
Water <1 mg/mL (<1 mM)
In vivo 15% Captisol 8 mg/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 (2S)-N1-(5-(2-tert-butylthiazol-4-yl)-4-methylthiazol-2-yl)pyrrolidine-1,2-dicarboxamide

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.

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

* Indicates a Required Field

Related PI3K Products

  • GDC-0032

    GDC-0032 is a potent, next-generation β isoform-sparing PI3K inhibitor targeting PI3Kα/δ/γ with Ki of 0.29 nM/0.12 nM/0.97nM, >10 fold selective over PI3Kβ.

    Features:A beta isoform-sparing PI3K inhibitor.

  • Pilaralisib (XL147)

    Pilaralisib (XL147) is a selective and reversible class I PI3K inhibitor for PI3Kα/δ/γ with IC50 of 39 nM/36 nM/23 nM in cell-free assays, less potent to PI3Kβ. Phase 1/2.

  • GNE-317

    GNE-317 is a potent, brain-penetrant PI3K inhibitor.

  • LY294002

    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.

  • 3-Methyladenine (3-MA)

    3-Methyladenine (3-MA) is a selective PI3K inhibitor for Vps34 and PI3Kγ with IC50 of 25 μM and 60 μM in HeLa cells; blocks class I PI3K consistently, whereas suppression of class III PI3K is transient, and also blocks autophagosome formation.

  • CAL-101 (Idelalisib, GS-1101)

    CAL-101 (Idelalisib, GS-1101) is a selective p110δ inhibitor with IC50 of 2.5 nM in cell-free assays; shown to have 40- to 300-fold greater selectivity for p110δ than p110α/β/γ, and 400- to 4000-fold more selectivity to p110δ than C2β, hVPS34, DNA-PK and mTOR.

  • Wortmannin

    Wortmannin is the first described PI3K inhibitor with IC50 of 3 nM in a cell-free assay, with little selectivity within the PI3K family. Also blocks autophagosome formation and potently inhibits DNA-PK/ATM with IC50 of 16 nM and 150 nM in cell-free assays.

  • BEZ235 (NVP-BEZ235, Dactolisib)

    BEZ235 (NVP-BEZ235, Dactolisib) is a dual ATP-competitive PI3K and mTOR inhibitor for p110α/γ/δ/β and mTOR(p70S6K) with IC50 of 4 nM /5 nM /7 nM /75 nM /6 nM in cell-free assays, respectively. Inhibits ATR with IC50 of 21 nM in 3T3TopBP1-ER cell.

  • BKM120 (NVP-BKM120, Buparlisib)

    BKM120 (NVP-BKM120, Buparlisib) is a selective PI3K inhibitor of p110α/β/δ/γ with IC50 of 52 nM/166 nM/116 nM/262 nM in cell-free assays, respectively. Reduced potency against VPS34, mTOR, DNAPK, with little activity to PI4Kβ. Phase 2.

  • Pictilisib (GDC-0941)

    Pictilisib (GDC-0941) is a potent inhibitor of PI3Kα/δ with IC50 of 3 nM in cell-free assays, with modest selectivity against p110β (11-fold) and p110γ (25-fold). Phase 2.

Recently Viewed Items

Tags: buy A66 | A66 supplier | purchase A66 | A66 cost | A66 manufacturer | order A66 | A66 distributor
×
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
Contact Us