research use only

Quisinostat (JNJ-26481585) 2HCl HDAC inhibitor

Name: Quisinostat (JNJ-26481585) 2HCl
Brand: Selleck Chemicals
SKU: S1096
Availability: InStock
Rating: 5 (59 reviews)

Catalog No.S1096 Purity:99.62%

Quisinostat (JNJ-26481585) 2HCl is a novel second-generation HDAC inhibitor with highest potency for HDAC1 with IC50 of 0.11 nM in a cell-free assay, modest potent to HDACs 2, 4, 10, and 11; greater than 30-fold selectivity against HDACs 3, 5, 8, and 9 and lowest potency to HDACs 6 and 7. Phase 2.

Chemical Structure

Molecular Weight: 467.39

Purity & Quality Control

Batch: Purity: 99.62%

99.62

Related Products

Related Targets	HDAC1 HDAC2 HDAC3 HDAC4 HDAC5 HDAC6 HDAC7 HDAC8 HDAC9 HDAC10 HDAC11 HD1 HD2	Click to Expand
Related Products	Entinostat (MS-275) TSA (Trichostatin A) Mocetinostat (MGCD0103) RGFP966 Tubastatin A Ricolinostat (ACY-1215) MC1568 Tubastatin A HCl PCI-34051 Tacedinaline (CI994) LMK-235 Fimepinostat (CUDC-907) Tubacin Givinostat hydrochloride monohydrate TMP269 AR-42 Sodium butyrate Pracinostat (SB939) Santacruzamate A (CAY10683) Abexinostat (PCI-24781)	Click to Expand
Related Compound Libraries	Kinase Inhibitor Library FDA-approved Drug Library Natural Product Library Bioactive Compound Library-I Highly Selective Inhibitor Library	Click to Expand

Signaling Pathway

HDAC Signaling Pathway

Cell Culture and Working Concentration

Cell Lines	Assay Type	Concentration	Incubation Time	Activity Description	PMID
A549 cells	Cell viability assay		24, 48, or 72 h	the IC50 values of cells for 48 and 72 h of quisinostat treatment were 82.4 and 42.0 nM, respectively.	27423454
RH30 cells	Function assay	15 nM	24 h and 30 h	GSK690 and JNJ-26481585 cooperated to induce cleavage of the initiator caspase-9 into its active p35 and p37 fragments and of the effector caspase-3 into its active p12 and p17 fragments	28617441
RD cells	Function assay	15 nM	24 h and 30 h	GSK690 and JNJ-26481585 cooperated to induce cleavage of the initiator caspase-9 into its active p35 and p37 fragments and of the effector caspase-3 into its active p12 and p17 fragments	28617441
HepG2	Cell viability assay	5, 10, 20, 40, 80, 160 and 320 nM	24, 48, 72 h	The IC50 values of cells for quisinostat treatment at 48 and 72 h were 81.2 and 30.8 nM, respectively.	28849080
HuT78	Function assay	10 nM		increases the level of acetylated lysine K10 of histone H3	30012418
Sf9	Function assay			Inhibition of full length recombinant human HDAC1 expressed in baculovirus infected Sf9 cells using RHKK-Ac as substrate by fluorescence analysis, IC50 = 0.00011 μM.	27606546
Sf9	Function assay			Inhibition of full length recombinant human HDAC2 expressed in baculovirus infected Sf9 cells using RHKK-Ac as substrate by fluorescence analysis, IC50 = 0.00033 μM.	27606546
Sf9	Function assay			Inhibition of full length recombinant human HDAC3/NCOR2 expressed in baculovirus infected Sf9 cells using RHKK-Ac as substrate by fluorescence analysis, IC50 = 0.00486 μM.	27606546
HUT78	Function assay		18 hrs	Pro-apoptotic activity in human HUT78 cells after 18 hrs by caspase-Glo 3/7 assay, EC50 = 0.0065 μM.	30122227
BL21 (DE3)	Function assay			Binding affinity to human His-thioredoxin-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells by ITC method, Kd = 0.0227 μM.	30347148
BL21 (DE3)	Function assay			Binding affinity to Schistosoma mansoni His-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells by ITC method, Kd = 0.0284 μM.	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50 = 0.0644 μM.	30347148
Sf9	Function assay			Inhibition of full length recombinant human HDAC6 expressed in baculovirus infected Sf9 cells using RHKK-Ac as substrate by fluorescence analysis, IC50 = 0.0768 μM.	27606546
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL6 mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50 = 0.093 μM.	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL1/mL6 mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50 = 0.094 μM.	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL6/L179I mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50 = 0.169 μM.	30347148
BL21 (DE3)	Function assay			Inhibition of human His-thioredoxin-tagged HDAC8 mL1/mL6/L179I mutant expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50 = 0.217 μM.	30347148
BL21 (DE3)	Function assay			Inhibition of Schistosoma mansoni His-tagged HDAC8 expressed in Escherichia coli BL21 (DE3) cells using Fluor de Lys (R)-HDAC8 as substrate by fluorometric method, IC50 = 0.3034 μM.	30347148
TC32	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for TC32 cells	29435139
U-2 OS	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for U-2 OS cells	29435139
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
SK-N-SH	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-SH 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
BT-12	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for BT-12 cells	29435139
DAOY	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for DAOY cells	29435139
fibroblast cells	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for control Hh wild type fibroblast cells	29435139
SK-N-SH	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for SK-N-SH cells	29435139
Rh41	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh41 cells	29435139
A673	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for A673 cells)	29435139
Rh30	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh30 cells	29435139
MG 63 (6-TG R)	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for MG 63 (6-TG R) cells	29435139
fibroblast cells	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for control Hh wild type fibroblast cells	29435139
Rh30	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Rh30 cells	29435139
U-2 OS	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for U-2 OS cells	29435139
OHS-50	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for OHS-50 cells	29435139
SK-N-SH	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Orthogonal 3D viability screen for SK-N-SH cells	29435139
Rh41	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Rh41 cells	29435139
RD	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for RD cells	29435139
Daoy	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Orthogonal 3D viability screen for Daoy cells	29435139
TC32	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Orthogonal 3D viability screen for TC32 cells	29435139
MG 63 (6-TG R)	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Orthogonal 3D viability screen for MG 63 (6-TG R) 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
Rh18	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh18 cells	29435139
NB1643	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for NB1643 cells	29435139
SJ-GBM2	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for SJ-GBM2 cells	29435139
Rh18	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Rh18 cells	29435139
Saos-2	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Confirmatory screen for Saos-2 cells	29435139
SJ-GBM2	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Orthogonal 3D viability screen for SJ-GBM2 cells	29435139
RD	qHTS assay			qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Orthogonal 3D viability screen for RD cells	29435139
Click to View More Cell Line Experimental Data

Mechanism of Action

Features

An orally bioavailable, second-generation, hydroxamic acid-based HDAC inhibitor.

Targets

HDAC1 ^[1] (Cell-free assay)	HDAC2 ^[1] (Cell-free assay)	HDAC11 ^[1] (Cell-free assay)	HDAC10 ^[1] (Cell-free assay)	HDAC4 ^[1] (Cell-free assay)	Click to View More Targets
0.11 nM	0.33 nM	0.37 nM	0.46 nM	0.64 nM	Click to View More Targets

In vitro
In vitro	JNJ-26481585 exhibits broad spectrum antiproliferative activity in solid and hematologic cancer cell lines, such as all lung, breast, colon, prostate, brain, and ovarian tumor cell lines, with IC50 ranging from 3.1-246 nM, which is more potent than R306465, CRA-24781, or mocetinostat in various human cancer cell lines tested. ^[1] A recent study shows that JNJ-26481585 promotes myeloma cell death at low nanomolar concentrations by resulting in Mcl-1 depletion and Hsp72 induction. ^[2]
Kinase Assay	HDAC activity assays
Kinase Assay	In all cases, full-length HDAC proteins are expressed using baculovirus-infected Sf9 cells. In addition, HDAC3 is coexpressed as a complex with human NCOR2. For assessing activity of HDAC1-containing cellular complexes, immunoprecipitated HDAC1 complexes are incubated with an [³H]acetyl- labeled fragment of histone H4 peptide [biotin-(6-aminohexanoic)Gly-Ala-(acetyl[3H])Lys-Arg-His-Arg-Lys-Val-NH2] in a total volume of 50μL enzyme assay buffer (25mM HEPES (pH 7.4), 1 M sucrose, 0.1 mg/mL BSA and 0.01% (v/v) Triton X-100). Incubation is performed for 45 minutes at 37 °C (immunoprecipitates) or 30 min at room temperature. Before addition of substrate, HDAC inhibitors are added at increasing concentrations and preincubated for 10 minutes at room temperature. After incubation, the reaction is quenched with 35μL stop buffer (1 M HCl and 0.4 M acetic acid). Released [³H]acetic acid is extracted with 800μL ethyl acetate and quantified by scintillation counting. Equal amounts of HDAC1 are immunoprecipitated as indicated by Western blot analysis. HDAC1 activity results are presented as mean ± SD of three independent experiments on a single lysate.
Cell Research	Cell lines	NCL-H2106, Colo699 and LNCAP cells
	Concentrations	0-300 nM
	Incubation Time	24 hours
	Method	All cell lines are obtained from American Type Culture Collection and cultured according to instructions. The effect of HDAC inhibitors on cell proliferation is measured using an MTT. Proliferation of non–small cell lung carcinoma (NSCLC) cell lines is assessed using an Alamar Blue–based assay. For proliferation of hematologic cell lines, cells are incubated for 72 hours and the cytotoxic activity is evaluated by MTS assay. Data are presented as mean IC50 or IC40 ± SD of at least three independent experiments.
Experimental Result Images	Methods	Biomarkers	Images	PMID
	Western blot	HDAC1 / HDAC2 / HDAC4 p21 / CDK2 / CDK4 / CDK6 / Cyclin D1 / Cyclin E1 / Cyclin A2 Caspase-3/ Cleaved caspase-3 / caspase-9 / Cleaved caspase-9 / PARP / Cleaved PARP / Bcl-xl / Bcl2 / Bax / Survivin PI3K-p110 / PI3K-p85 / p-AKT / JNK / p-JNK / p-c-Jun		30443188
	Growth inhibition assay	Cell viability		30443188

In Vivo
In vivo	In an HDAC1-responsive A2780 ovarian tumor screening model, JNJ-26481585 dosing at its maximal tolerated dose (10 mg/kg i.p. and 40 mg/kg p.o.) for 3 days leads to an HDAC1-regulated fluorescence , which predicts tumor growth inhibition. Furthermore, JNJ-26481585 also shows more potent inhibitory effects on the growth of C170HM2 colorectal liver metastases. ^[1]
Animal Research	Animal Models	HCT116 human colon carcinoma cells are injected s.c. into the inguinal region of athymic male NMRI nu/nu mice, C170HM2 cell suspensions are injected into the peritoneal cavity of male MFI nude mice.
	Dosages	≤10 mg/kg
	Administration	Administered via both p.o. and i.p.

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-05-22)
NCT02948075	Completed	Ovarian Cancer	NewVac LLC\|Janssen Pharmaceutica N.V. Belgium	September 2015	Phase 2
NCT01464112	Completed	Multiple Myeloma	Janssen Research & Development LLC	September 16 2011	Phase 1
NCT00676728	Terminated	Advanced or Refractory Leukemia\|Myelodysplastic Syndromes	Johnson & Johnson Pharmaceutical Research & Development L.L.C.	December 2008	Phase 1
NCT00677105	Completed	Lymphoma\|Neoplasms	Johnson & Johnson Pharmaceutical Research & Development L.L.C.\|Janssen Pharmaceutica N.V. Belgium	August 2007	Phase 1

References

https://pubmed.ncbi.nlm.nih.gov/19861438/
https://pubmed.ncbi.nlm.nih.gov/20331455/

Chemical Information

Molecular Weight	467.39	Formula	C₂₁H₂₈Cl₂N₆O₂
CAS No.	875320-31-3	SDF	--
Synonyms	N/A
Smiles	CN1C=C(C2=CC=CC=C21)CNCC3CCN(CC3)C4=NC=C(C=N4)C(=O)NO.Cl.Cl

Storage and Stability

Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
			1 month-20°Cin solvent

In vitro
Batch:

DMSO : 79 mg/mL ( (169.02 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molecular Weight Calculator

In vivo Batch: Add solvents to the product individually and in order.				In vivo Formulation Calculator
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.
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.	4.000mg/ml (8.56mM)	Taking the 1 mL working solution as an example, add 50 μL of 80 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 clarify; 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.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.500mg/ml (1.07mM)	Taking the 1 mL working solution as an example, add 50 μL of 10 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

Preparing Stock Solutions

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

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.

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

Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.

* Indicates a Required Field

Frequently Asked Questions

Question 1:
I was thinking of resuspending the powder in 10% hydroxy-propyl-β-cyclodextrin, 25mg/ml mannitol, in sterile water (final pH 8.7). Is this a good vehicle to use? What is the solubility of this chemical in such a vehicle?

Answer:
This vehicle can be used for in vivo studies. The following papers also used this vehicle: 1. http://www.nature.com/leu/journal/v23/n10/full/leu2009121a.html; 2. http://cancerres.aacrjournals.org/content/69/13/5307.long (The solvent contains 10% hydroxypropyl-β-cyclodextrin, 0.8% HCl (0.1 N), 0.9 % NaOH (0.1 N), 3.4% mannitol and pyrogen-free water). The solubility is 2mg/ml.

C1=C0/X	C1:	LOG(C1):
C2=C1/X	C2:	LOG(C2):
C3=C2/X	C3:	LOG(C3):
C4=C3/X	C4:	LOG(C4):
C5=C4/X	C5:	LOG(C5):
C6=C5/X	C6:	LOG(C6):
C7=C6/X	C7:	LOG(C7):
C8=C7/X	C8:	LOG(C8):