PIK-294

highly selective p110δ inhibitor CAS# 900185-02-6

PIK-294

Catalog No. BCC4995----Order now to get a substantial discount!

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Chemical structure

PIK-294

3D structure

Chemical Properties of PIK-294

Cas No. 900185-02-6 SDF Download SDF
PubChem ID 24905149 Appearance Powder
Formula C28H23N7O2 M.Wt 489.53
Type of Compound N/A Storage Desiccate at -20°C
Solubility DMSO : ≥ 40 mg/mL (81.71 mM)
*"≥" means soluble, but saturation unknown.
Chemical Name 2-[[4-amino-3-(3-hydroxyphenyl)pyrazolo[3,4-d]pyrimidin-1-yl]methyl]-5-methyl-3-(2-methylphenyl)quinazolin-4-one
SMILES CC1=C2C(=CC=C1)N=C(N(C2=O)C3=CC=CC=C3C)CN4C5=C(C(=N4)C6=CC(=CC=C6)O)C(=NC=N5)N
Standard InChIKey WFSLJOPRIJSOJR-UHFFFAOYSA-N
Standard InChI InChI=1S/C28H23N7O2/c1-16-7-3-4-12-21(16)35-22(32-20-11-5-8-17(2)23(20)28(35)37)14-34-27-24(26(29)30-15-31-27)25(33-34)18-9-6-10-19(36)13-18/h3-13,15,36H,14H2,1-2H3,(H2,29,30,31)
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of PIK-294

DescriptionPIK-294 is a potent p110δ-selective inhibitor with an IC50 of 10 nM.In Vitro:Analysis of the specific Class I PI3 Kinase catalytic isoforms p110α (IC50=10 μM), p110β (IC50=0.49 μM), p110δ (IC50=0.01 μM) and p110γ (IC50=0.16 μM) using the inhibitor PIK-294 indicates differential roles in CXCL8-induced neutrophil migration. PIK-294 inhibits both chemokinetic and chemotactic CXCL8-induced migration[1]. When cells are pre-treated with the PI3Kδ selective inhibitor PIK-294, CXCL8-induced migration in the non-gradient and the gradient assay is significantly inhibited. PIK-294 is used at two concentrations 1 μM and 10 μM. Pre-treatment with 1 μM inhibits migration to a greater extent in the non-gradient assay than in the gradient assay. Pre-treatment with 10 μM inhibits migration to a significantly greater extent than the lower dose in both assays. Prior to stimulation with CXCL8, pre-treatment of the cells with the PI3K inhibitors, Wortmannin (50 nM), PIK-294 (10 μM) and AS-605240 (10 μM) for 2 minutes, cause a reduction in the phosphorylation of Akt. Pre-treatment of cells prior to stimulation with GM-CSF and the DMSO control with the PI3K inhibitors Wortmannin (50 nM), PIK-294 (10 μM) and AS-605240 (10 μM) for 2 minutes, reduce the phosphorylation of Akt (p<0.05 for inhibition of PI3Kδ)[2].

References:
[1]. Knight ZA, et al. A pharmacological map of the PI3-K family defines a role for p110alpha in insulin signaling. Cell. 2006 May 19;125(4):733-47. [2]. Martin KJ, et al. The role of phosphoinositide 3-kinases in neutrophil migration in 3D collagen gels. PLoS One. 2015 Feb 6;10(2):e0116250.

Protocol

Cell Assay [2]
Neutrophils at a concentration of 6×106 cells/mL are pre-treated with 1 μM and 10 μM of the PIK-294 for 30 mins prior to the addition of CXCL8 (100 ng/mL) or 0.5 ng/mL GM-CSF. Then a non-gradient or gradient gel assay depending on the type of migration is performed. The gels are then constructed and the migration studied[2].

References:
[1]. Knight ZA, et al. A pharmacological map of the PI3-K family defines a role for p110alpha in insulin signaling. Cell. 2006 May 19;125(4):733-47. [2]. Martin KJ, et al. The role of phosphoinositide 3-kinases in neutrophil migration in 3D collagen gels. PLoS One. 2015 Feb 6;10(2):e0116250.

PIK-294 Dilution Calculator

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PIK-294 Molarity Calculator

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Preparing Stock Solutions of PIK-294

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.0428 mL 10.2139 mL 20.4278 mL 40.8555 mL 51.0694 mL
5 mM 0.4086 mL 2.0428 mL 4.0856 mL 8.1711 mL 10.2139 mL
10 mM 0.2043 mL 1.0214 mL 2.0428 mL 4.0856 mL 5.1069 mL
50 mM 0.0409 mL 0.2043 mL 0.4086 mL 0.8171 mL 1.0214 mL
100 mM 0.0204 mL 0.1021 mL 0.2043 mL 0.4086 mL 0.5107 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on PIK-294

IC50: 10 nM

PIK-294 is a highly selective p110δ inhibitor, 1000-, 49- and 16-fold less potent to PI3Kα/β/γ, respectively.

Phosphoinositide 3-kinases (PI3-Ks) are a key emerging class of drug targets, but the unique roles of PI3-K isoforms remain rarely defined. Their target selectivity was biochemically enumerated that revealed cryptic homologies across targets and chemotypes by synthesizing chemically diverse panel of PI3-K inhibitors. Crystal structures of three inhibitors to p110g identify a conformationally mobile region that is uniquely exploited by bound selective compounds. This chemical array was then used to define the PI3-K isoforms required for insulin signaling.

In vitro: PIK-294 displays distinct patterns of isoform selectivity to inhibit different subsets of class I PI3K isoforms (p110β, p110δ, and p110γ) and shows low sensitivity to p110α with IC50 of 10 μM). The m-phenol moiety of PIK-294 can penetrate the deep-affinity pocket of the ATP binding site, and thus promotes in vitro inhibitory activity. PIK-294 showed one of the most potent p110d-selective inhibitors reported at present.

In vivo: PIK-294 bound p110a inhibits the acute effects of insulin treatment in vivo, whereas a p110b inhibitor has no effect.

Clinical trial: So far, no clinical study has been conducted.

References:
[1] Knight ZA, Gonzalez B, Feldman ME, Zunder ER, Goldenberg DD, Williams O, Loewith R, Stokoe D, Balla A, Toth B, Balla T, Weiss WA, Williams RL, Shokat KM, et al. . A pharmacological map of the PI3-K family defines a role for p110alpha in insulin signaling. Cell. 2006 May 19;125(4):733-47. Epub 2006 Apr 27.
[2] Bobrovnikova-Marjon E1, Pytel D, Riese MJ, Vaites LP, Singh N, Koretzky GA, Witze ES, Diehl JA.  PERK utilizes intrinsic lipid kinase activity to generate phosphatidic acid, mediate Akt activation, and promote adipocyte differentiation. Mol Cell Biol. 2012 Jun;32 (12):2268-78.

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References on PIK-294

Potency and pharmacokinetics of broad spectrum and isoform-specific p110gamma and delta inhibitors in cancers.[Pubmed:26791581]

J Recept Signal Transduct Res. 2016;36(1):26-36.

Emerging data on cancer suggesting that target-based therapy is promising strategy in cancer treatment. PI3K-AKT pathway is extensively studied in many cancers; several inhibitors target this pathway in different levels. Recent finding on this pathway uncovered the therapeutic applications of PI3K-specific inhibitors; PI3K, AKT, and mTORC broad spectrum inhibitors. Noticeably, class I PI3K isoforms, p110gamma and p110delta catalytic subunits have rational therapeutic application than other isoforms. Therefore, three classes of inhibitors: isoform-specific, dual-specific and broad spectrum were selected for molecular docking and dynamics. First, p110delta structure was modelled; active site was analyzed. Then, molecular docking of each class of inhibitors were studied; the docked complexes were further used in 1.2 ns molecular dynamics simulation to report the potency of each class of inhibitor. Remarkably, both the studies retained the similar kind of protein ligand interactions. GDC-0941, XL-147 (broad spectrum); TG100-115 (dual-specific); and AS-252424, PIK-294 (isoform-specific) were found to be potential inhibitors of p110gamma and p110delta, respectively. In addition to that pharmacokinetic properties are within recommended ranges. Finally, molecular phylogeny revealed that p110gamma and p110delta are evolutionarily divergent; they probably need separate strategies for drug development.

The role of phosphoinositide 3-kinases in neutrophil migration in 3D collagen gels.[Pubmed:25659107]

PLoS One. 2015 Feb 6;10(2):e0116250.

The entry of neutrophils into tissue has been well characterised; however the fate of these cells once inside the tissue microenvironment is not fully understood. A variety of signal transduction pathways including those involving class I PI3 Kinases have been suggested to be involved in neutrophil migration. This study aims to determine the involvement of PI3 Kinases in chemokinetic and chemotactic neutrophil migration in response to CXCL8 and GM-CSF in a three-dimensional collagen gel, as a model of tissue. Using a three-dimensional collagen assay chemokinetic and chemotactic migration induced by CXCL8 was inhibited with the pan PI3 Kinase inhibitor wortmannin. Analysis of the specific Class I PI3 Kinase catalytic isoforms alpha, delta and gamma using the inhibitors PIK-75, PIK-294 and AS-605240 respectively indicated differential roles in CXCL8-induced neutrophil migration. PIK-294 inhibited both chemokinetic and chemotactic CXCL8-induced migration. AS-605240 markedly reduced CXCL8 induced chemokinetic migration but had no effect on CXCL8 induced chemotactic migration. In contrast PIK-75 inhibited chemotactic migration but not chemokinetic migration. At optimal concentrations of GM-CSF the inhibitors had no effect on the percentage of neutrophil migration in comparison to the control however at suboptimal concentrations wortmannin, AS-605240 and PIK-294 inhibited chemokinesis. This study suggests that PI3 Kinase is necessary for CXCL8 induced migration in a 3D tissue environment but that chemokinetic and chemotactic migration may be controlled by different isoforms with gamma shown to be important in chemokinesis and alpha important in chemotaxis. Neutrophil migration in response to suboptimal concentrations of GM-CSF is dependent on PI3 Kinase, particularly the gamma and delta catalytic isoforms.

Description

PIK-294 is a potent p110δ-selective inhibitor with an IC50 of 10 nM.

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