Name: Apitolisib (GDC-0980)
Brand: Selleck Chemicals
SKU: S2696
Rating: 5 (34 reviews)

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Quality Control

Batch: Purity: 99.76%

99.76

Related Targets	Akt mTOR GSK-3 ATM/ATR DNA-PK AMPK PDPK1 PTEN PP2A PDK
Other PI3K Inhibitors	GDC-0077 (Inavolisib) SAR405 Quercetin (Sophoretin) LY294002 XL147 analogue Tersolisib (STX-478) Buparlisib (BKM120) 740 Y-P (PDGFR 740Y-P) GO-203 TFA Eganelisib (IPI-549)

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Concentration	Incubation Time	Activity Description	PMID
insect cells	Function assay		30 mins	Inhibition of human recombinant mTOR expressed in insect cells assessed as phosphorylation of recombinant (GFP)-4-EBP1 measured after 30 mins by fluorescence polarization assay, Ki=0.017μM	21981714
PC3	Function assay			Inhibition of PIK3 gamma-mediated Akt phosphorylation at Ser473 in human PC3 cells by ELISA, IC50=0.036μM	21981714
MCF7.1	Antiproliferative assay			Antiproliferative activity against human MCF7.1 cells expressing HER2 gene after overnight incubation by CellTiter-Glo luminescence assay, IC50=0.255μM	21981714
PC3	Antiproliferative assay			Antiproliferative activity against human PC3 cells after overnight incubation by CellTiter-Glo luminescence assay, IC50=0.307μM	21981714
PC3	Antitumor assay	1 mg/kg	14 days	Antitumor activity against human PC3 cells xenografted in athymic nu/nu mouse assessed as delay in tumor growth at 1 mg/kg, po qd for 14 days	21981714
MCF7-neo	Antitumor assay	1 mg/kg	22 days	Antitumor activity against human MCF7-neo cells expressing HER2 gene xenografted in athymic nu/nu mouse assessed as delay in tumor growth at 1 mg/kg, po qd for 22 days	21981714
PC3	Antitumor assay			Antitumor activity against human PC3 cells xenografted in athymic nu/nu mouse assessed as tumor regression at maximum tolerated dose	21981714
MCF7-neo	Antitumor assay			Antitumor activity against human MCF7-neo cells expressing HER2 gene xenografted in athymic nu/nu mouse assessed as tumor regression at maximum tolerated dose	21981714
PC3	Antitumor assay		14 days	Antitumor activity against human PC3 cells xenografted in athymic nu/nu mouse assessed as tumor stasis at maximum tolerated dose measured on day 14	21981714
MCF7-neo	Antitumor assay		22 days	Antitumor activity against human MCF7-neo cells expressing HER2 gene xenografted in athymic nu/nu mouse assessed as tumor stasis at maximum tolerated dose measured on day 22	21981714
PC3	Function assay	10 mg/kg	6 hrs	Inhibition of mTORC2 in human PC3 cells xenografted mouse assessed as reduction of phosphorylated Akt level at 10 mg/kg, po after 6 hrs	23199076
PC3	Function assay	10 mg/kg	6 hrs	Inhibition of mTORC1 in human PC3 cells xenografted mouse assessed as reduction of phosphorylated p70S6K level at 10 mg/kg, po after 6 hrs	23199076
insect cells	Function assay		30 mins	Inhibition of human recombinant mTOR (1360 to 2549 residues) expressed in insect cells assessed as inhibition of GFP-labeled 4-EBP1 phosphorylation at Thr-37/46 residues incubated for 30 mins by FRET assay, Ki=0.017μM	27096040
PC3	Antiproliferative assay		3 days	Antiproliferative activity against human PC3 cells after 3 days by CellTitre-Glo assay, EC50=0.31μM	27096040
VERO-E6	Toxicity assay		48 hrs	Toxicity CC50 against VERO-E6 cells determined at 48 hours by high content imaging (same conditions as 2_LEY without exposure to 0.01 MOI SARS CoV-2 virus), CC50=0.5μM	ChEMBL
VERO-E6	Function assay		48 hrs	Determination of IC50 values for inhibition of SARS-CoV-2 induced cytotoxicity of VERO-E6 cells after 48 hours exposure to 0.01 MOI SARS CoV-2 virus by high content imaging, IC50=2.31μM	ChEMBL
Click to View More Cell Line Experimental Data

Chemical Information, Storage & Stability

Molecular Weight	498.6	Formula	C₂₃H₃₀N₈O₃S	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	1032754-93-0	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	RG7422, GNE 390			Smiles	CC1=C(SC2=C1N=C(N=C2N3CCOCC3)C4=CN=C(N=C4)N)CN5CCN(CC5)C(=O)C(C)O

Solubility

In vitro
Batch:

DMSO : 27 mg/mL (54.15 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
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Dilution Calculator Molecular Weight Calculator

In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	0.5% methylcellulose 1 0.2% Tween 80 Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	10.000mg/ml (20.06mM)	Taking the 1 mL working solution as an example, take 10 mg of this product, add it to 1 ml of 0.5% methylcellulose+0.2% Tween 80 clear solution, and mix evenly to make it a uniform suspension. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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Mechanism of Action

Features	A potent, selective, and orally available inhibitor of PI3Kα, β, δ, γ and mTOR.
Targets/IC₅₀/Ki	p110α (Cell-free assay) 5 nM p110δ (Cell-free assay) 7 nM p110γ (Cell-free assay) 14 nM mTOR (Cell-free assay) 17 nM(Ki app) p110β (Cell-free assay) 27 nM
In vitro	Apitolisib (GDC-0980) shows potent and selective inhibitory activities against class I PI3K and mTOR kinase versus a large panel of kinases, with K_i of 17 nM for mTOR and IC50 of 5 nM, 27 nM, 7 nM, and 14 nM for PI3Kα, β, δ, and γ, respectively. In vitro, this compound significantly inhibits cell proliferation in PC3 and MCF7 cells with IC50 of 307 nM and 255 nM, respectively. A recent study shows that it 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%).
Kinase Assay	Enzymatic activity
Kinase Assay	Apitolisib (GDC-0980) is evaluated through enzymatic activity assays for Class I PI3K isoforms using a fluorescence polarization method that monitors the formation of 3,4,5-inositoltriphosphate, which competes with fluorescently labelled PIP3 for binding to the GRP-1 pleckstrin homology domain protein. An increase in phosphatidyl inositide-3-phosphate product results in a decrease in fluorescence polarization signal as the labelled fluorophore is displaced from the GRP-1 protein binding site. Class I PI3K isoforms are expressed and purified as heterodimeric recombinant proteins. PI3K isoforms are assayed under initial rate conditions in the presence of 10 mM Tris (pH 7.5), 25 μM ATP, 9.75 μM PIP2, 5% glycerol, 4 mM MgCl₂, 50 mM NaCl, 0.05% (v/v) Chaps, 1 mM dithiothreitol, 2% (v/v) DMSO at the following concentrations for each isoform: PI3Kα,β at 60 ng/mL; PI3Kγ at 8 ng/mL; PI3Kδ at 45 ng/mL. After assay for 30 minutes at 25°C, reactions are terminated with a final concentration of 9 mM EDTA, 4.5 nM TAMRA-PIP3, and 4.2 μg/mL GRP-1 detector protein before reading fluorescence polarization on an Envision plate reader. IC50s are calculated from the fit of the dose−response curves to a 4-parameter equation. Human recombinant mTOR(1360−2549) is expressed and purified from insect cells and assayed using a Lanthascreen fluorescence resonance energy transfer format in which phosphorylation of recombinant green fluorescent protein (GFP)-4-EBP1 is detected using a terbium-labelled antibody to phospho-threonine 37/46 of 4-EBP1. Reactions are initiated with ATP and conducted in the presence of 50 mM Hepes (pH 7.5), 0.25 nM mTOR, 400 nM GFP-4E-BP1, 8 μM ATP, 0.01% (v/v) Tween 20, 10 mM MnCl₂, 1 mM EGTA, 1 mM dithiothreitol, and 1% (v/v) DMSO. Assays are conducted under initial rate conditions at room temperature for 30 minutes before terminating the reaction and detecting product in the presence of 2 nM Tb-anti-p4E-BP1 antibody and 10 mM EDTA. Dose−response curves are fit to an equation for competitive tight-binding inhibition and apparent Ki's are calculated using the determined K_m for ATP of 6.1 μM.
In vivo	Apitolisib (GDC-0980) exhibits significant anti-tumour activity at a dose of 1 mg/kg by causing tumour growth delay in both PC-3 and MCF-7 neo/HER2 xenograft models. Furthermore, this compound results in tumour stasis or regressions at the maximum tolerated dose of 7.5 mg/kg. In mice, intravenous administration at 1 mg/kg leads to low clearance (Cl_p: 9.2 mL/min/kg, V_ss: 1.7 L/kg). While, oral administration at 5 mg/kg in 80% PEG400 and at 50 mg/kg as a crystalline suspension in 0.5% methylcellulose/0.2% Tween-80 also results in favourable pharmacokinetic parameters.
References	[1] https://pubmed.ncbi.nlm.nih.gov/21981714/ [2] https://pubmed.ncbi.nlm.nih.gov/21998291/ [3] https://pubmed.ncbi.nlm.nih.gov/22532600/

Applications

Methods	Biomarkers	Images	PMID
Growth inhibition assay	Cell viability		25221930
Western blot	p-AKT / AKT / p-S6RP / S6RP / p-4EBP / 4EBP / p-eNOS / eNOS		23814482

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT01487239	Completed	Healthy Volunteer	Genentech Inc.	December 2011	Phase 1
NCT01455493	Completed	Endometrial Carcinoma	Genentech Inc.	December 2011	Phase 2
NCT01442090	Completed	Renal Cell Carcinoma	Genentech Inc.	October 2011	Phase 2
NCT01254526	Completed	Breast Cancer	Genentech Inc.	December 2010	Phase 1
NCT00854126	Completed	Non-Hodgkin''s Lymphoma Solid Cancers	Genentech Inc.	May 2009	Phase 1
NCT00854152	Completed	Non-Hodgkin''s Lymphoma Solid Cancers	Genentech Inc.	March 2009	Phase 1

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Apitolisib (GDC-0980) PI3K inhibitor

Chemical Structure

Molecular Weight: 498.6