For research use only.
Catalog No.S1095 Synonyms: NVP-LAQ824
CAS No. 404951-53-7
Dacinostat (LAQ824, NVP-LAQ824) is a novel HDAC inhibitor with IC50 of 32 nM and is known to activate the p21 promoter.
Selleck's Dacinostat (LAQ824) has been cited by 18 publications
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Class I selective HDACi have the highest INS-1 rescue potential . INS-1 cells were monitored using the real-time xCELLigence system h and the impedance (cell adhesion) was measured as a surrogate of cell viability (cell index) as described in the Methods. (a ) The impedance of duplicates of control (green line), cytokine-exposed (red line) and cytokine+ITF-J-exposed INS-1 cells (blue line) was followed from the start of exposure (indicated by the arrow). Heat maps of 13 different ITF HDAC inhibitor compounds ( b )orsix different commercial HDAC inhibitor compounds (c) were made based on their IC50 values towards selected HDACs . The HDACi inhibitors are ranked after rescue potential according to ESM Tables 1, 2 .( c) Values are corrected for differences in potency since they varied from 33.3 (CI-994) to 0.041 (LAQ824). (d ) Colour code for both heat maps: low IC50 values coloured red, intermediate IC50 values coloured black and high IC50 values coloured blue; grey indicates undetermined IC50.
Diabetologia 2012 55(9), 2421-31. Dacinostat (LAQ824) purchased from Selleck.
Analyses of efficacy, potency and IC50 of HDAC inhibitors point toward HDACs 1–3 as relevant candidates for beta cell protection. Ranking and raw data on ITF drugs (Table 3) and commercial HDAC inhibitors (Table 4) underlying the heat maps of Fig. 1 (A and B). The HDAC inhibitor compounds were tested using a HDAC activity kit and recombinant proteins to determine IC50 values on each individual HDAC (right part of the table). Each drug was further tested using Real-Time Cell Analysis (RTCA) to score their maximal effective concentration (ECmax) as well as the corresponding rescue percentage of cytokine treated INS-1 cells. The drugs were ranked according to % rescue. * DMSO alone controls were included in each experiment, but not shown here. The results indicate that the highest concentrations of DMSO used here (1:1,000) were slightly potentiating the proliferation of the cells. The effects observed in this group of compounds were ascribed to the DMSO.?
Diabetologia 2012 55(9), 2421-2431. Dacinostat (LAQ824) purchased from Selleck.
Levels of H3K9, H4K12, and 5-mC in blastocyst stage embryos. (A) Immunofluorescence staining at the blastocyst stage of H3K9, H4K12, and 5-mC (green) in the control group and after 100 nM LAQ824 treatment for 24 h post-activation. Each sample was counterstained with propidium iodide (PI) to visualize DNA (red). Merged images of H3K9, H4K12, and 5-mC and DNA staining are shown. The merged images of H3K9 and DNA are yellow. Scale bar indicates 50 μm. (B) Quantifications of H3K9, H4K12, and 5-mC are represented by signal intensities per group. Fluorescence intensity was measured using Image J software 1.46r. Bars and error bars show mean values and SEM, respectively.
Cell Physiol Biochem, 2017, 41(3):1255-1266. Dacinostat (LAQ824) purchased from Selleck.
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|Description||Dacinostat (LAQ824, NVP-LAQ824) is a novel HDAC inhibitor with IC50 of 32 nM and is known to activate the p21 promoter.|
LAQ824 activates the expression of the gene encoding the p21 cell cycle inhibitor by activating the p21 promoter with 50% of the maximal promoter activation (AC50) of 0.30 μM. LAQ824 inhibits the cell growth of both H1299, a non-small cell lung carcinoma line, and HCT116, a colon cancer cell line with IC50 of 0.15 μM and 0.01 μM, respectively, and the antiproliferative effect of LAQ824 is selective toward the tumor cell lines while inducing only growth arrest in normal fibroblasts. Furthermore, LAQ824 induces a dose-dependent increase of p21 protein in A549 cells and an increase in the hypophosphorylated state of the Rb tumor suppressor.  A recent study shows that LAQ824 induces chromatin changes at the level of the IL-10 gene promoter that lead to enhanced recruitment of the transcriptional repressors HDAC11 and PU.1 and inhibits IL-10 production in BALB/c murine macrophages. 
|In vivo||In HCT116 and human colon tumor xenografts in nude mice, LAQ824 treatment at 100 mg/kg produces the inhibitory effects on tumor growth in a dose-dependent mode without general cytotoxicity. |
In Vitro Histone Deacetylase Assay:HDAC enzymes are partially purified from H1299 cell lysate by ion exchange chromatography using the Q Sepharose Fast Flow column. Enzyme complexes are collected from 500 mg of total cell lysate by immunoprecipitation with cdk2 polyclonal antibody or cdk1/cdc2 monoclonal antibody. Immunoprecipitates are resuspended in kinase buffer (50 mM Hepes, pH 8, 10 mM MgCl2, 2.5 mM EDTA, 1 mM dithiothreitol, 20 mM ATP, 10 mM β-glycerophosphate, 0.1 mM NaVO4, 1 mM sodium fluoride, 50 mM ATP, 10 μCi of [γ-32P]ATP) along with 1 μg of pRb recombinant protein substrate (cdk2) or 10 mL of H1 histone mixture containing 20 μg of substrate (cdc2). Phosphorylated Rb and H1 histone are resolved by electrophoresis and quantitated using a PhosphorImager.
|In vitro||DMSO||76 mg/mL (200.28 mM)|
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