TAK-632

Catalog No.S7291 Batch:S729102

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Technical Data

Formula

C27H18F4N4O3S
Molecular Weight 554.52 CAS No. 1228591-30-7
Solubility (25°C)* In vitro DMSO 100 mg/mL (180.33 mM)
Ethanol 4 mg/mL (7.21 mM)
Water 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.)

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Biological Activity

Description TAK-632 is a potent pan-Raf inhibitor with IC50 of 8.3 nM and 1.4 nM for B-Raf(wt) and C-Raf in cell-free assays, respectively, showing less or no inhibition against other tested kinases.
Targets
C-Raf [1]
(Cell-free assay)		 B-Raf [1]
(Cell-free assay)		 Aurora B [1]
(Cell-free assay)		 PDGFRβ [1]
(Cell-free assay)		 FGFR3 [1]
(Cell-free assay)		 View More
1.4 nM 8.3 nM 66 nM 120 nM 280 nM
In vitro TAK-632 inhibits phosphorylation of MEK and ERK in melanoma A375 cells (BRAFV600E) with IC50 of 12 nM and 16 nM, respectively. In human melanoma HMVII cells (NRASQ61K/BRAFG469V), TAK-632 also shows strong inhibition of pMEK and pERK with IC50 of 49 nM and 50 nM, respectively. Moreover, TAK-632 also exhibits antiproliferative activity in both A375 and HMVII cells with GI50 of 66 nM and 200 nM, respectively. [1] TAK-632 induces RAF dimerization but inhibits the kinase activity of the RAF dimer because of its slow dissociation from RAF. The combination of TAK-632 and TAK-733 exhibits synergistic antiproliferative effects in BRAF- and NRAS-mutated melanoma cells. [2]
In vivo TAK-632 shows superior oral bioavailability in both rats and dogs. TAK-632 (3.9–24.1 mg/kg, p.o.) exhibits dose-dependent antitumor efficacy without severe body weight reduction in a melanoma A375 (BRAFV600E) xenograft model and a human melanoma HMVII (NRASQ61K/BRAFG469V) xenograft in rats. [1] In NRAS-mutant melanoma SK-MEL-2 xenograft model, TAK-632 (60 or 120 mg/kg, p.o.) also exhibits potent antitumor efficacy without severe toxicity. [2]
Features Orally bioavailable, pan-raf inhibitor that targets both wild-type and mutant forms.

Protocol (from reference)

Kinase Assay:

[1]
  • Kinase Profile Assay

    Assays for serine/threonine kinases using radio labeled [γ-33P] ATP are performed in 96 well plates. BRAF and c-RAF are expressed as N-terminal FLAG-tagged protein using a baculovirus expression system. The reaction conditions are optimized for each kinase: BRAF (25 ng/well of enzyme, 1 μg/well of GST-MEK1(K96R), 0.1 μCi/well of [γ-32P] ATP, room temperature, 20 min reaction); c-RAF (25 ng/well of enzyme, 1 μg/well of GST-MEK1 (K96R), 0.1 μCi/well of [γ-32P] ATP, room temperature, 20 min reaction). Enzyme reactions are performed in 25 mM HEPES, pH 7.5, 10 mM magnesium acetate, 1 mM dithiothreitol and 0.5 μM ATP containing optimized concentration of enzyme, substrate and radiolabeled ATP as described above in a total volume of 50 μL. Prior to the kinase reaction, compound and enzyme are incubated for 5 min at reaction temperature as described above. The kinase reactions are initiated by adding ATP. After the reaction period as described above, the reactions are terminated by the addition of 10% (final concentration) trichloroacetic acid. The [γ-33P] or [γ-32P]-phosphorylated proteins are filtered in GFC filter plates with a Cell Harvester and then the plates are washed out with 3% phosphoric acid. The plates are dried, followed by the addition of 40 μL of MicroScint0. The radioactivity is counted by a TopCount scintillation counter.
Cell Assay:

[1]
  • Cell lines

    A375 and HMVII cells

  • Concentrations

    ~2 μM

  • Incubation Time

    72 hours

  • Method

    The cells are proliferated in appropriate medium (vender recommended) supplemented with 10% heat-inactivated fetal bovine serum (FBS) and antibiotics, in tissue culture dishes placed in a humidified incubator maintained at 37°C in an atmosphere of 5% CO2 and 95% air. The anti-proliferative activity of compound is determined by treating cell lines with the compound for 3 days, followed by measurement of viable cell number in the Cell Titer-Glo assay. The cells are seeded in a 96-multiwell plate at 1500 to 4000 cells per well in medium containing FBS and cells allowed to sit down overnight. After 18–20 h, compounds at various concentrations by serial dilution are added to the cells and were cultured for 3 days in chamber. After the treatment culture, cellular proliferation is determined by a Cell Titer-Glo Luminescent Cell Viability Assay. In brief, 100 bL/well of Cell Titer-Glo Substrate solution is added to each well and the cells were cultured for an additional 10 minutes (approximately). The chemi-luminescence value is measured using a Luminescence Counter 1420 ARVO MX Light. Concentration response curves are generated by calculating the decrease in chemi-luminescence values in compound-treated samples relative to the vehicle (DMSO) treated controls.
Animal Study:

[1]
  • Animal Models

    Human melanoma A375 (BRAFV600E) xenograft model and human melanoma HMVII (NRASQ61K/BRAFG469V) xenograft model in rats.

  • Dosages

    ~24.1 mg/kg

  • Administration

    Oral administration

Customer Product Validation

Data from [Data independently produced by , , Oncotarget, 2016, 7(7):8172-83]

Selleck's TAK-632 has been cited by 31 publications

HDAC Inhibition Restores Response to HER2-Targeted Therapy in Breast Cancer via PHLDA1 Induction [ Int J Mol Sci, 2023, 24(7)6228] PubMed: 37047202
A Combination of Conformation-Specific RAF Inhibitors Overcome Drug Resistance Brought about by RAF Overexpression [ Biomolecules, 2023, 13(8)1212] PubMed: 37627277
BRAFΔβ3-αC in-frame deletion mutants differ in their dimerization propensity, HSP90 dependence, and druggability [ Sci Adv, 2023, 9(35):eade7486] PubMed: 37656784
Systematic analysis of the MAPK signaling network reveals MAP3K-driven control of cell fate [ Cell Syst, 2022, 13(11):885-894.e4] PubMed: 36356576
Strategies to inhibit FGFR4 V550L-driven rhabdomyosarcoma [ Br J Cancer, 2022, 10.1038/s41416-022-01973-6] PubMed: 36097178
A Systems Biology Approach to Investigate Kinase Signal Transduction Networks That Are Involved in Triple Negative Breast Cancer Resistance to Cisplatin [ J Pers Med, 2022, 12-81277] PubMed: 36013226
Proteasomal down-regulation of the proapoptotic MST2 pathway contributes to BRAF inhibitor resistance in melanoma [ Life Sci Alliance, 2022, 5(10)e202201445] PubMed: 36038253
A systematic analysis of signaling reactivation and drug resistance [ Cell Rep, 2021, 35(8):109157] PubMed: 34038718
Inhibitors of BRAF dimers using an allosteric site [ Nat Commun, 2020, 11(1):4370] PubMed: 32873792
RAF inhibitor PLX8394 selectively disrupts BRAF dimers and RAS-independent BRAF-mutant-driven signaling. [ Nat Med, 2019, 25(2):284-291] PubMed: 30559419

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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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