Name: Linifanib (ABT-869)
Brand: Selleck Chemicals
SKU: S1003
Availability: InStock
Rating: 5 (33 reviews)

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Quality Control

Batch: Purity: 99.76%

99.76

Related Targets	EGFR PDGFR FGFR c-Met Src MEK CSF-1R FLT3 HER2 c-Kit
Other VEGFR Inhibitors	SAR131675 SU 5402 Cediranib (AZD2171) Vatalanib (PTK787) 2HCl Anlotinib (AL3818) Dihydrochloride Apatinib (YN968D1) Apatinib (YN968D1) mesylate Semaxanib (SU5416) ZM 323881 HCl Ki8751

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Incubation Time	Activity Description
mouse 3T3 cells	Function assay		Inhibition of VEGF-induced human KDR phosphorylation in mouse 3T3 cells by ELISA, IC50=0.004 μM
Sf9 insect cells	Function assay	120 mins	Inhibition of recombinant GST-tagged VEGFR2 expressed in Sf9 insect cells after 120 mins by Kinase-Glo assay, IC50=5 nM
human MOLM13 cells	Cytotoxicity assay	72 h	Cytotoxicity against human MOLM13 cells harboring mutant FLT3 after 72 hrs by MTS assay, GI50=0.037 μM
human MV4-11 cells	Proliferation assay	72 h	Antiproliferation activity against FLT3/ITD harboring human MV4-11 cells after 72 hrs by MTS method, GI50=0.04 μM
human MOLT4 cells	Proliferation assay	72 h	Antiproliferation activity against human MOLT4 after 72 hrs by MTS method, GI50=6.7 μM
RS4:11 cells	Proliferation assay	72 h	Antiproliferation activity against human RS4:11 cells expressing wild type FLT3 after 72 hrs by MTS method, GI50=9.2 Μm
U937 cells	Proliferation assay	72 h	Antiproliferation activity against human FLT3 gene-deficient U937 cells after 72 hrs by MTS method, GI50=19 μM
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 75 mg/mL (199.78 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection 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.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	10.000mg/ml (26.64mM)	Taking the 1 mL working solution as an example, add 50 μL of 200 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to make it clear; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
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.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

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Calculation results:

Working concentration: mg/ml;

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.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	375.41	Formula	C₂₁H₁₈FN₅O	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	796967-16-3	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	AL39324,RG3635			Smiles	CC1=CC(=C(C=C1)F)NC(=O)NC2=CC=C(C=C2)C3=C4C(=CC=C3)NN=C4N

Mechanism of Action

Targets/IC₅₀/Ki	VEGFR1/FLT1 (Cell-free assay) 3 nM CSF-1R (Cell-free assay) 3 nM VEGFR2/KDR (Cell-free assay) 4 nM FLT3 (Cell-free assay) 4 nM Kit (Cell-free assay) 14 nM PDGFRβ (Cell-free assay) 66 nM Tie-2 (Cell-free assay) 170 nM VEGFR3/FLT4 (Cell-free assay) 190 nM
In vitro	Linifanib (ABT-869) shows inhibitory activity to Kit, PDGFRβ and Flt4 with IC50 values of 14 nM, 66 nM and 190 nM in kinase assays. It also inhibits ligand-induced KDR, PDGFRβ, Kit, and CSF-1R phosphorylation with IC50 values of 2 nM, 2 nM, 31 nM and 10 nM at the cellular level, though this cellular potency could be affected by serum protein. The compound suppresses VEGF-stimulated HUAEC proliferation with an IC50 of 0.2 nM. While it has weak activity against tumor cells not induced by VEGF or PDGF, it is effective against MV4-11 leukemia cells (with constitutively active form of Flt3) with an IC50 of 4 nM. It causes a decrease in S and G2-M phases with a corresponding increase in the sub-G0-G1 apoptotic population in MV4-11 cells. This compound binds to the ATP-binding site of CSF-1R with a K_i of 3 nM. At 10 nM, it exhibits reduced phosphorylation of Akt at Ser473 and decreased phosphorylation of GSK3β at Ser9 in Ba/F3 FLT3 ITD cell lines.
Kinase Assay	Kinase assays
Kinase Assay	Potencies (IC50 values) are determined by assays of active kinase domains cloned and expressed in baculovirus using the FastBacbaculovirus expression system or obtained commercially. For tyrosine kinase assays, a biotinylated peptide substrate containing a single tyrosine is used with 1 mM ATP, anEu-cryptate–labeled anti-phosphotyrosine antibody (PT66), and Strepavidin-APC in a homogeneous time-resolved fluorescence assay. Serine/threonine kinases are assayed using 5 μM ATP, [³³P]ATP, and a biotinylated peptide substrate with peptide capture and incorporation of ³³P determined using a SA-Flashplate. This compound is assayed at multiple concentrations prepared by serial dilution of a DMSO stock solution of Linifanib (ABT-869). The concentration resulting in 50% inhibition of activity is calculated using nonlinear regression analysis of the concentration response data.
In vivo	Linifanib (ABT-869) (0.3 mg/kg) results in complete inhibition of KDR phosphorylation in lung tissue. It also inhibits the edema response with ED50 of 0.5 mg/kg. This compound (7.5 and 15 mg/kg, bid) significantly inhibits both bFGF- and VEGF-induced angiogenesis in the cornea. It inhibits tumor growth in flank xenograft models including HT1080, H526, MX-1 and DLD-1 with ED75 from 4.5-12 mg/kg. Linifanib also shows efficacy in A431 and MV4-11 xenografts at low dose levels. It (12.5 mg/kg bid) reveals a decrease of microvasculure density in MDA-231 xenograft. This compound shows a C_max and AUC_{24 hours} with 0.4 μg/mL and 2.7 μg•hour/mL in HT1080 fibrosarcoma model.
References	[1] https://pubmed.ncbi.nlm.nih.gov/16648571/ [2] https://pubmed.ncbi.nlm.nih.gov/16648572/ [3] https://pubmed.ncbi.nlm.nih.gov/21471285/ [4] https://pubmed.ncbi.nlm.nih.gov/18930332/ [5] https://pubmed.ncbi.nlm.nih.gov/16648571/

Applications

Methods	Biomarkers	Images	PMID
Western blot	phospho-FLT3 / FLT3 Beclin-1 / ATG5 / ATG7 / p62 p-PDGFRβ / PDGFRβ/ p-AKT / AKT / p-mTOR / mTOR / p-S6K		21471285
Immunofluorescence	LC3		25327881

Clinical Trial Information

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

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT01401933	Completed	Advanced Solid Tumors	Abbott	May 2011	Phase 1
NCT01381341	Completed	Advanced Solid Tumors	Abbott	May 2011	Phase 1
NCT01114191	Completed	Solid Tumors	Abbott	May 2010	Phase 1

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Linifanib (ABT-869) VEGFR/PDGFR Inhibitor

Chemical Structure

Molecular Weight: 375.41