Quisinostat (JNJ-26481585) 2HCl

HDAC inhibitor

Home Epigenetics HDAC inhibitor Quisinostat (JNJ-26481585) 2HCl

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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.

Quisinostat (JNJ-26481585) 2HCl Chemical Structure

Quisinostat (JNJ-26481585) 2HCl Chemical Structure

Molecular Weight: 467.39

Purity & Quality Control

Quisinostat (JNJ-26481585) 2HCl Related Products

Signaling Pathway

HDAC Signaling Pathways

HDAC Signaling Pathway

Cell Culture and Working Concentration

Cell Lines Assay Type Concentration Incubation Time Formulation 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

Description 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.
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

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
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 S1096-WB1 30443188
Growth inhibition assay Cell viability S1096-viability1 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
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)

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

Water : Insoluble

Ethanol : Insoluble


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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.