Size | Price | Stock | Qty |
---|---|---|---|
5mg |
|
||
10mg |
|
||
25mg |
|
||
50mg |
|
||
100mg |
|
||
250mg |
|
||
Other Sizes |
|
Purity: ≥98%
AMG319 (also known as ACP319) is a novel, potent, selective, orally bioavailable small molecule inhibitor of PI3Kδ (phosphoinositide-3 kinase δ) with potential anticancer activity. It was initially created by Amgen as an anti-inflammatory drug for the treatment of autoimmune diseases like RA-rheumatoid arthritis, but it was later discovered to have the ability to inhibit cancer cell proliferation, suggesting that it may one day be effective in the treatment of cancer. It has an IC50 of 18 nM, inhibits PI3K, and has >47-fold selectivity for PI3K over other PI3Ks.
Targets |
PI3Kδ ( IC50 = 18 nM ); PI3Kγ ( IC50 = 850 nM ); PI3Kβ ( IC50 = 2.7 μM ); PI3Kα ( IC50 = 33 μM )
|
---|---|
ln Vitro |
GDC-0980 shows the potent and selective inhibitory activities against class I PI3K and mTOR kinase versus a large panel of kinases with Ki of 17 nM for mTOR and IC50 of 5 nM, 27 nM, 7 nM, and 14 nM for PI3Kα, β, δ, and γ, respectively. [1] In vitro, GDC-0980 significantly inhibits cell proliferation in PC3 and MCF7 cells with IC50 of 307 nM and 255 nM, respectively. [1] A recent study shows that GDC-0980 reduces cancer cell viability by inhibiting cell-cycle procession and inducing apoptosis with most potency in prostate (IC50 < 200 nM 50%), <500 nM 100%), breast (IC50 <200 nM 37%, <500 nM 78%) and NSCLC lines (IC50 <200 nM 29%, <500 nM 88%) and less potency in pancreatic (IC50 <200 nM 13%, <500 nM 67%) and melanoma cell lines (IC50 <200 nM 0%, <500 nM 33%). [2]
|
ln Vivo |
AMG319 (3 mg/kg, p.o.) inhibits the KLH-induced inflammatory response by 88% in female Lewis rats. AMG319 (, p.o.) inhibits in vivo pAKT in transgenic (IgMm) mice with an IC50 of 1.9 nM. [1]
|
Enzyme Assay |
A PI3K Alphascreen assay is used to measure the activity of a panel of four phosphoinositide 3-kinases: PI3Kα, PI3Kβ, PI3Kγ, and PI3Kδ. Enzyme reaction buffer is prepared using sterile water and 50 mM Tris-HCl, pH 7, 14 mM MgCl2, 2 mM sodium cholate, and 100 mM NaCl. 2 mM DTT is added fresh on the day of the experiment. The Alphascreen buffer is made using sterile water and 10 mM Tris-HCl, pH 7.5, 150 mM NaCl, 0.10% Tween 20, and 30 mM EDTA. Then 1 mM DTT is added fresh on the day of the experiment. Compound source plates used for this assay are 384-well Greiner clear polypropylene plates containing test compounds at 5 mM and diluted 1:2 over 22 concentrations. Columns 23 and 24 contained only DMSO, as these wells comprised the positive and negative controls, respectively. Source plates are replicated by transferring 0.5 μL per well into 384-well Optiplates. Each PI3K isoform is diluted in enzyme reaction buffer to 2× working stocks. PI3Kα is diluted to 1.6 nM, PI3Kβ is diluted to 0.8 nM, PI3Kγ is diluted to 15 nM, and PI3Kδ is diluted to 1.6 nM. PI(4,5)P2 is diluted to 10 μM, and ATP was diluted to 20 μM. This 2× stock is used in the assays for PI3Kα and PI3Kβ. For assay of PI3Kγ and PI3Kδ, PI(4,5)P2 is diluted to 10 μM and ATP was diluted to 8 μM to prepare a similar 2× working stock. Alphascreen reaction solutions are made using beads from the anti-GST Alphascreen kit. Two 4× working stocks of the Alphascreen reagents are made in Alphascreen reaction buffer. In one stock, biotinylated-IP4 is diluted to 40 nM and streptavadin-donor beads are diluted to 80 μg/mL. In the second stock, PIP3-binding protein is diluted to 40 nM and anti-GST-acceptor beads were diluted to 80 μg/mL. As a negative control, a reference inhibitor at a concentration ≫Ki (40 μM) is included in column 24 as a negative (100% inhibition) control. Using a 384-well Multidrop, 10 μL/well of 2× enzyme stock is added to columns 1–24 of the assay plates for each isoform. An amount of 10 μL/well of the appropriate substrate 2× stock (containing 20 μM ATP for the PI3Kα and -β assays and containing 8 μM ATP for the PI3Kγ and -δ assays) is then added to columns 1–24 of all plates. Plates are then incubated at room temperature for 20 min. In the dark, 10 μL/well of the donor bead solution is added to columns 1–24 of the plates to quench the enzyme reaction. The plates are incubated at room temperature for 30 min. Still in the dark, 10 μL/well of the acceptor bead solution is added to columns 1–24 of the plates. The plates are then incubated in the dark for 1.5 h. The plates are read on an Envision multimode plate reader using a 680 nm excitation filter and a 520–620 nm emission filter.
|
Cell Assay |
B cells are purified from human peripheral blood mononuclear cells (PBMCs) by negative selection. Approximately 3 × 104 purified B cells per well are seeded into a 96-well plate. Compounds are dissolved in DMSO at a concentration of 10 mM, and a 10-point, 3-fold serial dilution of the compound is carried out in DMSO. Then 0.5 μL of compound is added to each well in duplicates so that the final DMSO concentration is 0.25% and the highest compound concentration is 10 μM. After preincubating for 30 min, B cells are treated with 2 μg/mL of anti-human IgM antibody plus 300 ng/mL human CD40L or 5 ng/mL human IL-4 plus 200 ng/mL of CD40L as a counterscreen to evaluate the off-target effects. The plates are incubated at 37 °C and 5%CO2 for 72 h, then pulsed with 0.5 μCi per well 3H thymidine for 18 h, and B cells are collected to count the incorporation of 3H thymidine.
|
Animal Protocol |
Mice[1]
IgM membrane only homozygous transgenic mice (6- to 12-week-old female) are orally dosed with AMG319 or vehicle control (n=5 per group). At 15 min after treatment, mice are tail iv injected with 50 μg of Endotoxin-free FITC-labeled μ chain specific anti-IgM or PBS only control. Blood and spleen tissue are collected after 30 min of stimulation for drug concentration and B cell pAKT analysis via flow cytometry. Briefly, blood and dispersed splenocytes are fixed with BD Phosflow lyse/fix buffer, pelleted, and permeabilized with cold 90% MeOH. Cells are then stained with pAKT and Alexa-647 secondary and B220-Pacific Blue for FACS analysis. Stimulated B220+/anti-IgM FITC+ B cells are analyzed for pAKT levels with B220+/FITC-B cells from anti-IgM untreated mice serving as a control. Mice are maintained and experiments are performed. Rats[1] Female Lewis rats (N=8/dose group) are dosed po with AMG319 or vehicle (2% HPMC, 1% Pluronic F68, 10% Captisol, pH 2.0) once a day for 10 days at various doses. Two hours after the first dosing, 200 μL of PBS containing 60 μg of KLH is administered to each rat intravenously. Ten days after the KLH priming, rats are euthanized and blood is taken by cardiac puncture for the measurement of KLH specific IgG and IgM by ELISA. |
References |
Molecular Formula |
C21H16FN7
|
---|---|
Molecular Weight |
385.397046089172
|
Exact Mass |
385.15
|
Elemental Analysis |
C, 65.45; H, 4.18; F, 4.93; N, 25.44
|
CAS # |
1608125-21-8
|
Related CAS # |
1608125-21-8
|
Appearance |
Solid powder
|
SMILES |
C[C@H](NC1=C2N=CNC2=NC=N1)C3=CC4=CC=C(F)C=C4N=C3C5=NC=CC=C5
|
InChi Key |
KWRYMZHCQIOOEB-LBPRGKRZSA-N
|
InChi Code |
InChI=1S/C21H16FN7/c1-12(28-21-19-20(25-10-24-19)26-11-27-21)15-8-13-5-6-14(22)9-17(13)29-18(15)16-4-2-3-7-23-16/h2-12H,1H3,(H2,24,25,26,27,28)/t12-/m0/s1
|
Chemical Name |
(S)-N-(1-(7-fluoro-2-(pyridin-2-yl)quinolin-3-yl)ethyl)-9H-purin-6-amine
|
Synonyms |
AMG319; ACP319; ACP-319; ACP 319; AMG-319; AMG 319;
|
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 |
Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
|
Solubility (In Vitro) |
DMSO: ~77 mg/mL (199.8 mM)
Water: <1 mg/mL Ethanol: 77 mg/mL (199.8 mM) |
---|
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 2.5947 mL | 12.9735 mL | 25.9471 mL | |
5 mM | 0.5189 mL | 2.5947 mL | 5.1894 mL | |
10 mM | 0.2595 mL | 1.2974 mL | 2.5947 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.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
NCT Number | Status | Interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
NCT01300026 | Completed | Drug: AMG 319 | Cancer | Chronic Lymphocytic Leukemia | Amgen | April 2011 | Phase 1 |