Quisinostat (JNJ-26481585) 2HCl

Catalog No.S1096 Batch:S109602

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Technical Data

Formula

C21H28Cl2N6O2
Molecular Weight 467.39 CAS No. 875320-31-3
Solubility (25°C)* In vitro DMSO 79 mg/mL (169.02 mM)
Water Insoluble
Ethanol Insoluble
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

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.
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)		 View More
0.11 nM 0.33 nM 0.37 nM 0.46 nM 0.64 nM
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 vorinostat, R306465, panobinostat, 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]
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 than 5-fluorouracil/Leucovorin. [1]
Features An orally bioavailable, second-generation, hydroxamic acid-based HDAC inhibitor.

Protocol (from reference)

Kinase Assay:[1]
  • 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 Assay:Cell proliferation assays
  • 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.
Animal Study:[1]
  • 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.

Customer Product Validation

Data from [Data independently produced by J Biol Chem, 2014, 289(28), 19519-30]

, , Dr. Zhang of Tianjin Medical University

Data from [Data independently produced by , , J Clin Oncol, 2016, 34(28):3451-9.]

Data from [Data independently produced by , , Nat Commun, 2015, 6:8648.]

Selleck's Quisinostat (JNJ-26481585) 2HCl has been cited by 59 publications

ΔNp63 regulates MDSC survival and metabolism in triple-negative breast cancer [ iScience, 2024, 27(4):109366] PubMed: 38510127
The Roles and Regulatory Mechanisms of Tight Junction Protein Cingulin and Transcription Factor Forkhead Box Protein O1 in Human Lung [ Int J Mol Sci, 2024, 25(3):1411.] PubMed: 38338691
The Roles and Regulatory Mechanisms of Tight Junction Protein Cingulin and Transcription Factor Forkhead Box Protein O1 in Human Lung Adenocarcinoma A549 Cells and Normal Lung Epithelial Cells [ Int J Mol Sci, 2024, 25(3)1411] PubMed: 38338691
Combination Therapies with CDK4/6 Inhibitors to Treat KRAS-Mutant Pancreatic Cancer [ Cancer Res, 2023, 83(1):141-157] PubMed: 36346366
Quisinostat is a brain-penetrant radiosensitizer in glioblastoma [ JCI Insight, 2023, 8(22)e167081] PubMed: 37991020
CUDC-907, a dual PI3K/histone deacetylase inhibitor, increases meta-iodobenzylguanidine uptake (123/131I-mIBG) in vitro and in vivo: a promising candidate for advancing theranostics in neuroendocrine tumors [ J Transl Med, 2023, 21(1):604] PubMed: 37679770
Therapeutic HDAC inhibition in hypermutant diffuse intrinsic pontine glioma [ Neoplasia, 2023, 43:100921] PubMed: 37603953
Therapeutic HDAC inhibition in hypermutant diffuse intrinsic pontine glioma [ Neoplasia, 2023, 43:100921] PubMed: 37603953
Concurrent Targeting of HDAC and PI3K to Overcome Phenotypic Heterogeneity of Castration-resistant and Neuroendocrine Prostate Cancers [ Cancer Res Commun, 2023, 10.1158/2767-9764.CRC-23-0250] PubMed: 37823778
HER3 activation contributes toward the emergence of ALK inhibitor-tolerant cells in ALK-rearranged lung cancer with mesenchymal features [ NPJ Precis Oncol, 2022, 6(1):5] PubMed: 35042943

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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