Altiratinib

Catalog No.S6412 Batch:S641201

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Technical Data

Formula

C26H21F3N4O4
Molecular Weight 510.46 CAS No. 1345847-93-9
Solubility (25°C)* In vitro DMSO 100 mg/mL (195.9 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 Altiratinib (DCC-2701) is a potent single-digit nanomolar inhibitor of TRK, Met (c-Met), TIE2, and VEGFR2 kinases with IC50 vaules of 0.9 nM, 4.6 nM, and 0.8 nM for TRKA, B, and C, respectively. It inhibits Met (c-Met) and Met (c-Met) mutant with IC50 values in the range of 0.3-6 nM.
Targets
MET Y1230C [1]
(Cell-free assay)		 TrkA [1]
(Cell-free assay)		 TrkC [1]
(Cell-free assay)		 MET Y1230C [1]
(Cell-free assay)		 MET D1228N [1]
(Cell-free assay)		 View More
0.37 nM 0.85 nM 0.85 nM 1.2 nM 1.3 nM
In vitro

Altiratinib is >10-fold selective for MET versus FMS and KIT, and >50-fold selective for MET versus ABL1, FYN, HER1 (EGFR), p38α (MAPK14), PDGFRα, PDGFRβ, RET, and SRC. Altiratinib exhibits IC50s of 0.69 nmol/L in K562 cells, 1.2 nmol/L in SK-N-SH cells for inhibition of NGF-stimulated TRKA phosphorylation. Altiratinib inhibits constitutive TRKA phosphorylation with an IC50 of 1.4 nmol/L in KM-12 cells. Altiratinib inhibits HGF-stimulated MET phosphorylation in HUVECs, exhibiting an IC50 of 2.3 nmol/L. In ANG1-stimulated HUVECs and EA.hy926 cells, altiratinib exhibits IC50 values of 1.0 nmol/L and 2.6 nmol/L, respectively, for inhibition of TIE2 phosphorylation. In VEGF-stimulated HUVECs, altiratinib inhibits VEGFR2 phosphorylation with an IC50 of 4.7 nmol/L. Altiratinib potently inhibits cellular proliferation in MET-amplified EBC-1 and MKN-45 cells, as well as TPM3-TRKA fusion KM-12 cells, but only weakly inhibits other cancer cell lines, including proliferation of M-NFS-60 (IC50, 770 nmol/L); A375, BT-474, HCT-116, PC-3, SK-MEL-28, U87, and A549 cells (IC50s > 1,000 nmol/L)[1].
In vivo

Altiratinib alone and in combination with bevacizumab increases survival and decreases circulating TIE2+-expressing monocytes in the U87 glioma model. In the PyMT syngeneic mammary tumor model which recapitulates many features of human breast cancer, altiratinib alone and in combination with paclitaxel inhibits PyMT mammary tumor growth, reduces tumoral TIE2+ stromal cell density, and inhibits lung metastasis. Altiratinib achieves a brain:plasma ratio of 0.23 after systemic dosing, indicating significant penetration of the murine blood-brain barrier[1].

Protocol (from reference)

Cell Assay:

[1]
  • Cell lines

    EBC-1, M-NFS-60, SK-MEL-28, MKN-45, MV-4-11, A375, HCT-116, BT-474, KM-12, PC-3, and U-87-MG cells

  • Concentrations

    --

  • Incubation Time

    72 h

  • Method

    Cells are added to 96-well (EBC-1, M-NFS-60, and SK-MEL-28: 2,500 cells/well; MKN-45: 5,000 cells/well; MV-4-11: 10,000 cells/well) or 384-well plates (A375 and HCT-116: 625 cells/well; BT-474, KM-12, PC-3, and U-87-MG: 1,250 cells/well). Plates are incubated for 72 hours. Viable cells are quantified using resazurin using a plate reader with excitation at 540 nm and emission at 600 nm.
Animal Study:

[1]
  • Animal Models

    MKN-45 xenograft mouse (Female nude mice)

  • Dosages

    10 and 30 mg/kg

  • Administration

    oral

Selleck's Altiratinib has been cited by 2 publications

CRTC3, a sensor and key regulator for melanogenesis, as a tunable therapeutic target for pigmentary disorders [ Theranostics, 2021, 11(20):9918-9936] PubMed: 34815795
Mechanisms of targeted therapy resistance in a pediatric glioma driven by ETV6-NTRK3 fusion [ Cold Spring Harb Mol Case Stud, 2021, 7(5)a006109] PubMed: 34429303

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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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