CPI-455 HCl

Catalog No.S8287 Batch:S828702

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Technical Data

Formula

C16H15ClN4O
Molecular Weight 314.77 CAS No. 2095432-28-1
Solubility (25°C)* In vitro DMSO 63 mg/mL (200.14 mM)
Ethanol 3 mg/mL (9.53 mM)
Water Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
5% DMSO 95% corn oil
1.55mg/ml Taking the 1 mL working solution as an example, add 50 μL of 31 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. 
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
1.55mg/ml Taking the 1 mL working solution as an example, add 50 μL of 31 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 50 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 500 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
* <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 CPI-455 HCl is a specific KDM5 inhibitor with a half-maximal inhibitory concentration (IC50) of 10 ± 1 nM for full-length KDM5A in enzymatic assays, elevating global levels of H3K4 trimethylation (H3K4me3) and decreased the number of DTPs in multiple cancer cell line models treated with standard chemotherapy or targeted agents.
Targets
KDM5A [1]
(Cell-free assay)
10 nM
In vitro

CPI-455 has improved potency against KDM5A while demonstrating ~200-fold selectivity for KDM5A over KDM4C. CPI-455 inhibits KDM5A, KDM5B and KDM5C to similar extents but showed substantially weaker potency toward KDM4C and KDM7B (~200- and 770-fold, respectively) and no measurable inhibition of KDM2B, KDM3B or KDM6A. CPI-455-mediated KDM5 inhibition results in a dose-dependent increase in global H3K4me3 in HeLa cells. CPI-455 specifically alters H3K4 methylation in cells and binds at the demethylase active site[1].

Protocol (from reference)

Cell Assay:

[1]
  • Cell lines

    melanoma (M14), breast cancer (SKBR3) and NSCLC (PC9) cell lines

  • Concentrations

    0-25 μM

  • Incubation Time

    14-20 days

  • Method

    All cell lines were treated with DMSO, CPI-4203 or CPI-455 for 5 d with two changes of medium and drug. Thereafter, the cells (PC9, Colo205, Hs888, M14, SKBR3 and EVSA-T) were plated at 2×105 cells in six-well plates in triplicate and treated for an additional 9-15 d, depending on the cell line model. The Incucyte HD imaging system was used to monitor numbers of drug-tolerant cells after cells were stained with Nuclear-ID Red stain.

Selleck's CPI-455 HCl has been cited by 25 publications

Inhibition of fatty acid oxidation enables heart regeneration in adult mice [ Nature, 2023, 622(7983):619-626] PubMed: 37758950
Methionine restriction promotes cGAS activation and chromatin untethering through demethylation to enhance antitumor immunity [ Cancer Cell, 2023, 41(6):1118-1133.e12] PubMed: 37267951
Priming therapy by targeting enhancer-initiated pathways in patient-derived pancreatic cancer cells [ EBioMedicine, 2023, 92:104602] PubMed: 37148583
Epigenetically suppressed tumor cell intrinsic STING promotes tumor immune escape [ Biomed Pharmacother, 2023, 157:114033] PubMed: 36436495
Immune suppressive signaling regulated by latent transforming growth factor beta binding protein 1 promotes metastasis in cervical cancer [ Braz J Med Biol Res, 2023, 55:e12206] PubMed: 36629522
Systematic identification of biomarker-driven drug combinations to overcome resistance [ Nat Chem Biol, 2022, 10.1038/s41589-022-00996-7] PubMed: 35332332
Inhibition of KDM5A attenuates cisplatin-induced hearing loss via regulation of the MAPK/AKT pathway [ Cell Mol Life Sci, 2022, 79(12):596] PubMed: 36396833
METTL3 promotes intrahepatic cholangiocarcinoma progression by regulating IFIT2 expression in an m6A-YTHDF2-dependent manner [ Oncogene, 2022, 10.1038/s41388-022-02185-1] PubMed: 35094011
Demethylation at enhancer upregulates MCM2 and NUP37 expression predicting poor survival in hepatocellular carcinoma patients [ J Transl Med, 2022, 20(1):49] PubMed: 35093119
pncCCND1_B Engages an Inhibitory Protein Network to Downregulate CCND1 Expression upon DNA Damage [ Cancers (Basel), 2022, 14(6)1537] PubMed: 35326688

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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.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.