GSK2110183 analog HCl 2070009-64-0_Akt_PI3K / Akt / mTOR_Signaling Pathways_Products

GSK2110183 analog HCl; (Afuresertib-F HCl), an analog of Afuresertib, is a potent, orally bioavailable and ATP-competitive Akt inhibitor with Ki of 0.08 nM, 2 nM, and 2.6 nM for Akt1, Akt2, and Akt3, respectively. GSK2110183 HCl is an analog of afuresertib. The serine/threonine protein kinase Akt (protein kinase B) inhibitor GSK2110183 may have anti-cancer effects. The PI3K/Akt signaling pathway, tumor cell proliferation, and tumor cell apoptosis may all be inhibited by the Akt inhibitor GSK2110183, which binds to and inhibits the activity of Akt. The PI3K/Akt signaling pathway is frequently involved in the development of tumors, and aberrant PI3K/Akt signaling may play a role in the development of tumor resistance to a range of antineoplastic agents.

Physicochemical Properties

Molecular Formula	C18H17CL3F2N4OS
Molecular Weight	481.774586439133
Exact Mass	480.015
Elemental Analysis	C, 44.88; H, 3.56; Cl, 22.07; F, 7.89; N, 11.63; O, 3.32; S, 6.65
CAS #	2070009-64-0
Related CAS #	GSK2110183 analog 1;1047634-63-8; GSK2110183 analog 1 hydrochloride;2070009-64-0; 1047644-62-1 ; 1047645-82-8 (HCl);
PubChem CID	92044396
Appearance	White to off-white solid powder
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	6
Heavy Atom Count	29
Complexity	552
Defined Atom Stereocenter Count	1
SMILES	CN1C(=C(C=N1)Cl)C2=C(SC(=C2)C(=O)N[C@@H](CC3=CC(=C(C=C3)F)F)CN)Cl.Cl
InChi Key	BCVQLTLODHPIJM-PPHPATTJSA-N
InChi Code	InChI=1S/C18H16Cl2F2N4OS.ClH/c1-26-16(12(19)8-24-26)11-6-15(28-17(11)20)18(27)25-10(7-23)4-9-2-3-13(21)14(22)5-9;/h2-3,5-6,8,10H,4,7,23H2,1H3,(H,25,27);1H/t10-;/m0./s1
Chemical Name	N-[(2S)-1-Amino-3-(3,4-difluorophenyl)propan-2-yl]-5-chloro-4-(4-chloro-2-methylpyrazol-3-yl)thiophene-2-carboxamide hydrochloride
Synonyms	Afuresertib-F hydrochloride; Afuresertib-F; GSK2110183-analog; GSK-2110183-analog; GSK 2110183-analog; Afuresertib-F HCl
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

Targets

Akt

ln Vitro

Kinase Assay: the potency of compounds against Akt enzymes is measured. Since GSK2110183 and GSK2141795 are highly potent inhibitors of the 3 isoforms of Akt, the true potency (Ki) of the inhibitors is initially determined at low enzyme concentrations (0.1 nM Akt1, 0.7 nM Akt2, and 0.2 nM Akt3) using a filter binding assay and then confirmed with progress curve analysis. In the filter binding assay, a pre-mix of enzyme plus inhibitor is incubated for 1 h and then added to a GSKα peptide (Ac-KKGGRARTSSFAEPG-amide) and [γ33P] ATP. Reactions are terminated after 2 h and the radio labeled Akt peptide product is captured in a phospho-cellulose filter plate. Progress curve analysis utilized continuous real-time fluorescence detection of product formation using the Sox-Akt-tide substrate (Ac-ARKRERAYSF-d-Pro-Sox-Gly-NH2).

Cell Assay: A 3-day proliferation assay using CellTiter-Glo is performed to measure the growth inhibition by the compounds at 0-30 μM. Cell growth is determined relative to untreated (DMSO) controls. EC50’s are calculated from inhibition curves using a 4- or 6-parameter fitting algorithm in the Assay Client application. Cells used: Hematological cell lines and solid tumor cell lines

Afuresertib inhibits the kinase activity of the E17K AKT1 mutant protein with EC50 of 0.2 nM. Afuresertib shows a concentration-dependent effect on multiple AKT substrate phosphorylation levels, including GSK3b, PRAS40, FOXO and Caspase 9. Overall 65% of the hematological cell lines are sensitive to afuresertib (EC50 < 1 μM). Among tested solid tumor cell lines, 21% have EC50 < 1 μM in response to afuresertib.

ln Vivo

Mice bearing BT474 breast tumor xenografts are dosed orally with either vehicle or GSK2110183 at 10, 30 or 100 mg/kg daily for 21 days which result in 8, 37 and 61% TGI, respectively. Mice tolerated GSK2110183 well, with 1-3% body weight loss reported after 5 days of dosing which recover over the course of the study. Other tumor xenograft models which possess an activation of the Akt pathway are explored to further demonstrate compound efficacy. Mice treated with GSK2110183 at 10, 30 and 100 mg/kg result in 23, 37 and 97% TGI, respectively, of SKOV3 xenografts.

Enzyme Assay

Kinase Assays[1]
The potency of compounds against AKT enzymes was measured as described before. Since GSK2110183 and GSK2141795 are highly potent inhibitors of the 3 isoforms of AKT, the true potency (Ki *) of the inhibitors was initially determined at low enzyme concentrations (0.1 nM AKT1, 0.7 nM AKT2, and 0.2 nM AKT3) using a filter binding assay and then confirmed with progress curve analysis. In the filter binding assay, a pre-mix of enzyme plus inhibitor was incubated for 1 h and then added to a GSKα peptide (Ac-KKGGRARTSSFAEPG-amide) and [γ33P] ATP. Reactions were terminated after 2 h and the radio labeled AKT peptide product was captured in a phospho-cellulose filter plate. Progress curve analysis utilized continuous real-time fluorescence detection of product formation using the Sox-AKT-tide substrate (Ac-ARKRERAYSF-d-Pro-Sox-Gly-NH2).[1]
GSK2110183 and GSK2141795 were tested against a diverse panel of kinase assays. Initially, the compounds were tested at 0.5 and 10 µM in all available kinase assays and were followed up with full IC50 curves against a subset of enzymes that showed strong inhibition against 0.5 µM, for which in-house assay were not available.

Cell Assay

poptosis assay[2]
Apoptosis was evaluated by performing AxV–FITC/PI double staining‐based FACS analysis, as described previously 25. Briefly, ACC‐MESO‐4 and MSTO‐211H cells were seeded in six‐well plates (cell density, 1 × 105 cells/well) and were incubated for 24 h at 37°C. Next, the cells were incubated with indicated concentrations of afuresertib, followed by incubation with AxV–FITC and PI (10 μg/mL) for 15 min at room temperature. Fluorescence intensities were determined by performing FACS with FACSCantoII.

Cell cycle analysis[2]
Cell cycle was evaluated by performing PI‐staining‐based FACS analysis, as described previously 26. ACC‐MESO‐4 and MSTO‐211H cells were seeded in a six‐well culture plate (cell density, 1 × 105 cells/well) and were incubated for 24 h. Next, the cells were incubated with the indicated concentrations of afuresertib for 24 h. For FACS analysis, the cells were detached using trypsin after 24 h of serum treatment and were fixed overnight in ice‐cold 70% ethanol. After fixation, the cells were treated with RNase A (100 μg/mL) and stained with PI (10 μg/mL). The percentages of cells in the sub‐G1, G1, S, and G2‐M phases of the cell cycle were measured using FlowJo software.

A 3-day proliferation assay using CellTiter-Glo is performed to measure the growth inhibition by the compounds at 0-30 μM. The rate of cell growth is measured in comparison to untreated (DMSO) controls. In the Assay Client application, EC50 values are calculated from inhibition curves using a 4- or 6-parameter fitting algorithm.[1]

Animal Protocol

Female athymic nude and SCID mice bearing SKOV3 or BT474 tumors[1]
100 mg/kg
p.o.

In vivo Xenograft experiments[1]
Tumors were initiated by injecting either cells (SKOV3, CAPAN-2 and HPAC) or a tumor fragments (BT474) subcutaneously into 6–8 week female athymic nude (SKOV3) and SCID (all others) mice. Once tumors reached between 120 and 300 mm3, mice were randomized according to tumor volume into groups of n = 7–10 mice per treatment. GSK2110183 and GSK2141795 were administered daily at various doses by oral gavage. In combination experiments, GSK1120212 was also administered daily by oral gavage. Tumor volumes and body weight were measured twice weekly, tumor volume was measured with calipers and calculated using equation: Tumor volume (mm3) = (length x width)2/2. Results are represented as percent inhibition on completion of dosing = 100 x [1- average growth of drug-treated population/average growth of vehicle-treated control population].[1]

In vivo dose response pharmacodynamic assay[1]
SCID mice bearing BT474 tumor xenografts were treated with either vehicle, GSK2110183 or GSK2141795 daily for 7 days prior to harvesting tissue 2 h post the last dose. Protein lysates were analyzed by phospho-PRAS40 ELISA according to the methods described above. Concentration of the test compounds in the tissue and blood was analyzed using protein precipitation with acetonitrile, followed by HPLC/MS/MS analysis using positive ion atmospheric pressure chemical ionization or Turbo ionspray ionization. The lower level of detection of compound was 10 ng/mL and the assays were linear over a 100- to a 1000-fold drug concentration range.

Dissolved in 20% polyethylene glycol (PEG) 400/1% DMSO; 10, 30 or 100 mg/kg; p.o.

Mice bearing BT474 breast tumor xenografts

References

:Cancer Chemother Pharmacol.2015 Jan;75(1):183-9;Blood.2014Oct 2;124(14):2162-3.

Solubility Data

Solubility (In Vitro)

DMSO: ~36mg/mL

Water: N/A

Ethanol: N/A

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (5.19 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (5.19 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

Solubility in Formulation 3: ≥ 2.5 mg/mL (5.19 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

Solubility in Formulation 4: ≥ 2.5 mg/mL (5.19 mM) (saturation unknown) in 10% DMSO + 90% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

(Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.0757 mL	10.3784 mL	20.7568 mL
	5 mM	0.4151 mL	2.0757 mL	4.1514 mL
	10 mM	0.2076 mL	1.0378 mL	2.0757 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

PeptideDB

GSK2110183 analog HCl 2070009-64-0

CAS No.: 2070009-64-0

Physicochemical Properties

Biological Activity

Solubility Data