Home PI3K/Akt/mTOR PI3K inhibitor Eganelisib (IPI-549) For research use only.

Eganelisib (IPI-549)

Eganelisib (IPI-549) is a potent inhibitor of PI3K-γ with >100-fold selectivity over other lipid and protein kinases. The biochemical IC50 for PI3K-γ is 16 nM.

Eganelisib (IPI-549) Chemical Structure

Eganelisib (IPI-549) Chemical Structure

CAS No. 1693758-51-8

Purity & Quality Control

Eganelisib (IPI-549) Related Products

Signaling Pathway

PI3K Signaling Pathways

PI3K Signaling Pathway

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
Sf9 Function assay Binding affinity to human recombinant full length N-terminal His-tagged PI3Kgamma expressed in Sf9 insect cells by equilibrium fluorescence titration analysis, Kd = 0.00029 μM. 27660692
RAW264.7 Function assay 30 mins Inhibition of PI3Kgamma in C5a-stimulated mouse RAW264.7 cells assessed as reduction in AKT phosphorylation at S473 incubated for 30 mins followed by stimulation with C5a for 3 mins by ELISA, IC50 = 0.0012 μM. 27660692
Sf9 Function assay 15 mins Inhibition of human recombinant full length N-terminal His-tagged PI3Kgamma expressed in Sf9 insect cells using diC8PIP2 as substrate incubated for 15 mins followed by substrate addition measured after 2 hr by ADP-Glo luminescence assay, IC50 = 0.016 μM. 27660692
Sf9 Function assay Binding affinity to human recombinant full length N-terminal His6-tagged PI3K p110alpha/p85alpha coexpressed in baculovirus infected Sf9 insect cells by equilibrium fluorescence titration analysis, Kd = 0.017 μM. 27660692
Sf9 Function assay Binding affinity to human recombinant full length N-terminal GST-tagged PI3K p110delta/p85alpha coexpressed in baculovirus infected Sf9 insect cells by equilibrium fluorescence titration analysis, Kd = 0.023 μM. 27660692
Sf9 Function assay Binding affinity to human recombinant full length N-terminal His6-tagged PI3K p110beta/p85alpha coexpressed in baculovirus infected Sf9 insect cells by equilibrium fluorescence titration analysis, Kd = 0.082 μM. 27660692
Raji Function assay 30 mins Inhibition of PI3Kdelta in IgM-stimulated human Raji cells assessed as reduction in AKT phosphorylation at S473 incubated for 30 mins followed by stimulation with IgM for 30 mins by ELISA, IC50 = 0.18 μM. 27660692
786-O Function assay 30 mins Inhibition of PI3Kbeta in human 786-O cells assessed as reduction in AKT phosphorylation at S473 after 30 mins by ELISA, IC50 = 0.24 μM. 27660692
SKOV-3 Function assay 30 mins Inhibition of PI3Kalpha in human SKOV-3 cells assessed as reduction in AKT phosphorylation at S473 after 30 mins by ELISA, IC50 = 0.25 μM. 27660692
Sf9 Function assay 15 mins Inhibition of human recombinant full length N-terminal His6-tagged PI3K p110alpha/p85alpha coexpressed in baculovirus infected Sf9 insect cells using diC8PIP2 as substrate incubated for 15 mins followed by substrate addition measured after 2 hr by ADP-Glo, IC50 = 3.2 μM. 27660692
Sf9 Function assay 15 mins Inhibition of human recombinant full length N-terminal His6-tagged PI3K p110beta/p85alpha coexpressed in baculovirus infected Sf9 insect cells using diC8PIP2 as substrate incubated for 15 mins followed by substrate addition measured after 2 hr by ADP-Glo , IC50 = 3.5 μM. 27660692
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Biological Activity

Description Eganelisib (IPI-549) is a potent inhibitor of PI3K-γ with >100-fold selectivity over other lipid and protein kinases. The biochemical IC50 for PI3K-γ is 16 nM.
Targets
PI3Kγ [1]
(Cell-free assay)
16 nM
In vitro
In vitro IPI-549 is found to be a remarkably tight binder to PI3K-γ with a Kd of 290 pM and >58-fold weaker affinity for other Class I PI3K isoforms. It does not significantly inhibit a panel of 468 mutant and nonmutant protein and lipid kinases (including Class II PI3K isoforms) at 1 μM. In PI3K-α, -β, -γ, and -δ dependent cellular phospho-AKT assays, IPI-549 demonstrates excellent PI3K-γ potency (IC50 = 1.2 nM) and selectivity against other Class I PI3K isoforms (>146-fold). Furthermore, IPI-549 dose dependently inhibits PI3K-γ-dependent bone marrow-derived macrophage (BMDM) migration in vitro. IPI-549 is also found to be selective against a panel of 80 GPCRs, ion channels, and transporters at 10 μM. In vitro, IPI-549 shows moderate to high cell permeability across Caco-2 cell monolayers, is slowly metabolized in cultured hepatocytes (t1/2 > 360 min), and demonstrates IC50s greater than 20 μM for the CYP isoforms tested (1A2, 2B6, 2C8, 2C9, 2C19, 2D6, 3A4)[1].
Cell Research Cell lines SKOV-3 cells
Concentrations --
Incubation Time 30 min
Method

SKOV-3 cells are seeded into 96-well cell culture-grade plates at a density of 200,000 cells/200 μL/well of RPMI-1640 with 10% FBS. Cells are incubated overnight at 5% CO2 and 37 °C. Compounds are added to the cells, resulting in a final DMSO concentration of 0.5%, and incubated for 30 minutes at 5% CO2 and 37 °C. Media is then aspirated and 50 μL/well of ice-cold lysis buffer is added. Plates are incubated on ice for 5 minutes and then centrifuged at 3000 rpm at 4 °C for 5 minutes.
Experimental Result Images Methods Biomarkers Images PMID
Western blot p-AKT / AKT / p-p65 / p65 27642729
In Vivo
In vivo In vivo (mice, rats, dog, and monkeys), IPI-549 has excellent oral bioavailability, low clearance, and distributes into tissues with a mean volume of distribution of 1.2 L/kg. It has a favorable pharmacokinetic profile to allow potent and selective inhibition of PI3K-γ in vivo. IPI-549 can significantly reduce neutrophil migration in a dose-dependent manner in mouse model when administered orally at all of the tested doses. In addition, IPI-54 has been shown to inhibit tumor growth in murine syngeneic models through alteration of immune cells in the tumor microenvironment[1].
Animal Research Animal Models CD-1 mice, Sprague-Dawley rats, beagle dogs and cynomolgus monkeys.
Dosages 0.5-1.25 mg/mL(For PO dosing); 5-10 mg/mL(for efficacy studies); 0.25-0.4 mg/mL(for IV dosing)
Administration p.o.; i.v.
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT03980041 Completed
Bladder Cancer|Urothelial Carcinoma|Solid Tumor|Advanced Cancer
Infinity Pharmaceuticals Inc.|Bristol-Myers Squibb
 September 25 2019 Phase 2
NCT02637531 Unknown status
Advanced Solid Tumors (Part A/B/C/D)|Non-small Cell Lung Cancer (Part E)|Melanoma (Part E)|Squamous Cell Cancer of the Head and Neck (Part E)|Triple Negative Breast Cancer (Part F)|Adrenocortical Carcinoma (Part G)|Mesothelioma (Part G)|High-circulating Myeloid-derived Suppressor Cells (Part H)
Infinity Pharmaceuticals Inc.
 December 2015 Phase 1

Chemical Information & Solubility

Molecular Weight 528.56 Formula

C30H24N8O2
CAS No. 1693758-51-8 SDF Download Eganelisib (IPI-549) SDF
Smiles CC(C1=CC2=C(C(=CC=C2)C#CC3=CN(N=C3)C)C(=O)N1C4=CC=CC=C4)NC(=O)C5=C6N=CC=CN6N=C5N
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 100 mg/mL ( (189.19 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : ˂1 mg/mL

Ethanol : ˂1 mg/mL


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In vivo
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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.

Handling Instructions

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