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Lonafarnib (SCH66336) Farnesyltransferase Inhibitor

Name: Lonafarnib (SCH66336)
SKU: S2797
Availability: InStock
Rating: 5 (27 reviews)

Cat.No.S2797

Lonafarnib (SCH66336) is an orally bioavailable FPTase inhibitor for H-ras, K-ras-4B and N-ras with IC50 of 1.9 nM, 5.2 nM and 2.8 nM in cell-free assays, respectively. Phase 3.

Chemical Structure

Molecular Weight: 638.82

Jump to Mechanism of Action Cell Culture & Working Concentration Solubility Chemical Information, Storage & Stability Specificity

Quality Control

Batch: Purity: 99.48%

99.48

Related Targets	P450 (e.g. CYP17) Dehydrogenase PDE phosphatase PPAR HSP Vitamin Transferase Carbohydrate Metabolism Mitochondrial Metabolism Casein Kinase Serine/threonin kinase Lipoxygenase Phospholipase (e.g. PLA) Retinoid Receptor DPP ACE Peroxidases Amino Acids and Derivatives Fatty Acid Synthase FXR HMG-CoA Reductase Carbonic Anhydrase Lipase Decarboxylase DHFR IDO/TDO Hydroxylase PCSK9 OXPHOS
Related Products	Tipifarnib (IND 58359) FTI 277 HCl LB42708

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Incubation Time	Activity Description	PMID
Cos-1 monkey kidney cells	Function assay		Inhibition of Protein farnesyltransferase in Cos-1 monkey kidney cells expressing H-Ras-val, IC50=0.0019 μM	12190309
COS-7 monkey cells	Function assay		Inhibiting the farnesylation of H-ras proteins in COS-7 monkey cells transiently expressing H-ras[Val12]-CVLS in the whole cell assay, IC50=0.01 μM	9822558
MCF-7 tumor cell line	Growth inhibition assay		Compound was measured for inhibition of MCF-7 tumor cell line in breast under soft agar assay, IC50=0.05 μM	9822558
HCT116	Growth inhibition assay		Compound was measured for inhibition of HCT116 tumor cell line in colon under soft agar assay, IC50=0.07 μM	9822558
NIH-H tumor cell lines	Growth inhibition assay		Compound ability to inhibit anchorage-independent growth of NIH-H tumor cell lines in soft agar, IC50=0.072 μM	9822558
NIH3T3 cells	Function assay		Inhibition of Ras farnesylation in H-Ras transformed NIH3T3 cells, EC50=0.1 μM	15454228
NIH-K tumor cell lines	Growth inhibition assay		Compound ability to inhibit anchorage-independent growth of NIH-K tumor cell lines in soft agar, IC50=0.5 μM	9822558
Cos-1	Function assay		Inhibition of Protein farnesyltransferase in Cos-1 monkey kidney cells expressing H-Ras-val, IC50 = 0.0019 μM.	12190309
Cos-1	Function assay		Effect on Ras processing in Cos-1 monkey kidney cells expressing either H-Ras-Val 12-CVLS or H-Ras-Val12, IC50 = 0.01 μM.	10411485
COS7	Function assay		Inhibition of FTase in human COS7 cells, IC50 = 0.01 μM.	20925433
H-Ras transformed cells	Function assay		Inhibition of soft agar colony formation in H-Ras transformed cells, IC50 = 0.07 μM.	15501065
NIH3T3	Function assay		Effective concentration against Ha-RAS processing in NIH3T3 ras-transformed cells, EC50 = 0.16 μM.	12657284
NIH3T3	Function assay		TP_TRANSPORTER: inhibition of DNR efflux (DNR: ? uM) in MDR1-expressing NIH3T3 cells, IC50 = 2.7 μM.	11606389
A673	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 cells	29435139
DAOY	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for DAOY cells	29435139
Saos-2	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Saos-2 cells	29435139
BT-37	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-37 cells	29435139
RD	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for RD cells	29435139
BT-12	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-12 cells	29435139
MG 63 (6-TG R)	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for MG 63 (6-TG R) cells	29435139
NB1643	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 cells	29435139
OHS-50	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for OHS-50 cells	29435139
Rh41	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh41 cells	29435139
SJ-GBM2	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SJ-GBM2 cells	29435139
SK-N-MC	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells	29435139
NB-EBc1	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB-EBc1 cells	29435139
LAN-5	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for LAN-5 cells	29435139
Caco-2	Cytotoxicity assay	48 hours	Determination of IC50 values for inhibition of SARS-CoV-2 induced cytotoxicity of Caco-2 cells after 48 hours by high content imaging, IC50 = 5.68 μM.	ChEMBL
Caco-2	Toxicity assay	48 hours	Toxicity against Caco-2 cells determined at 48 hours by intracellular ATP concentration using the CellTiter-Glo Luminescent Cell Viability Assay, CC50 = 10.71 μM.	ChEMBL
Click to View More Cell Line Experimental Data

Chemical Information, Storage & Stability

Molecular Weight	638.82	Formula	C₂₇H₃₁Br₂ClN₄O₂	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	193275-84-2	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	C1CN(CCC1CC(=O)N2CCC(CC2)C3C4=C(CCC5=C3N=CC(=C5)Br)C=C(C=C4Br)Cl)C(=O)N

Solubility

In vitro
Batch:

DMSO : 127 mg/mL (198.8 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 127 mg/mL

Water : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

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.
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.	5.000mg/ml (7.83mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 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.

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+ %

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.

Mechanism of Action

Targets/IC₅₀/Ki	H-ras ^[1] (Cell-free assay) 1.9 nM N-ras ^[1] (Cell-free assay) 2.8 nM K-ras-4B ^[1] (Cell-free assay) 5.2 nM
In vitro	Lonafarnib (SCH66336) at concentrations ranging from 0.1 μM to 8 μM suppresses growth and induces apoptosis of human head and neck squamous carcinoma cells (HNSCC) in a dose- and time-dependent manner. At 8 μM, it suppresses protein kinase B/Akt activity as well as the phosphorylation of the Akt substrates glycogen synthase kinase (GSK)-3β, forkhead transcription factor, and BAD in SqCC/Y1 cells. ^[2] This compound demonstrates variable antiproliferative effects against the cell lines, with IC50 values ranging from 0.6 μM to 32.3 μM. ^[3] It induces a CCAAT/enhancer-binding protein homologous protein (CHOP)-dependent transactivation of the DR5 promoter, thus causing CHOP-dependent DR5 up-regulation. At concentrations below 10 μM, it activates caspase-8 and its downstream caspases, thereby inducing caspase-8-dependent apoptosis in H1792 cells. At 5 μM, it up-regulates DR5 expression, increases cell-surface DR5 distribution, and enhances tumor necrosis factor-related apoptosis-inducing ligand-induced apoptosis in H1792 cells. ^[4]
In vivo	Lonafarnib (SCH66336) inhibits HTBI77 human lung carcinoma xenograft growth in nude mice in a dose-dependent fashion. ^[1] When dosed at 50 mg/kg p.o. bid by oral gavage, it inhibits tumor growth with up to 69% growth inhibition after 21 days of treatment in NOD/SCID mice bearing s.c. flank XEN01, XEN05 or XEN08 GBM xenografts. ^[3]
References	[1] https://pubmed.ncbi.nlm.nih.gov/9810004/ [2] https://pubmed.ncbi.nlm.nih.gov/12941797/ [3] https://pubmed.ncbi.nlm.nih.gov/11389071/ [4] https://pubmed.ncbi.nlm.nih.gov/17493934/

Applications

Methods	Biomarkers	Images	PMID
Western blot	p-ERK / p-SAPK / p-JNK PARP / cleaved-PARP / pro-caspase3 / cleaved-caspase3 / Bcl-2 Cyclin D / CDK6 / CDK4 / SKP2 LC3A / LC3B		29285232
Growth inhibition assay	Cell number Cell viability		29069775

Clinical Trial Information

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

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05953545	Not yet recruiting	Chronic Hepatitis Delta	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)\|National Institutes of Health Clinical Center (CC)	May 15 2024	Phase 2
NCT02579044	Enrolling by invitation	Progeria	Boston Children''s Hospital	December 2015	Phase 1\|Phase 2
NCT02430181	Completed	Chronic Hepatitis D Infection	Eiger BioPharmaceuticals	November 2014	Phase 2
NCT01495585	Completed	Hepatitis D	National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)\|National Institutes of Health Clinical Center (CC)	December 2011	Phase 2
NCT01232881	Terminated	Breast Cancer	Hoosier Cancer Research Network\|United States Department of Defense\|Indiana University School of Medicine\|Emory University	August 2009	--
NCT00916747	Active not recruiting	Progeria	Boston Children''s Hospital\|Schering-Plough\|Merck Sharp & Dohme LLC\|Eiger BioPharmaceuticals	August 2009	Phase 2

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