Neratinib

Catalog No.S2150 Batch:S215005

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Technical Data

Formula

C30H29ClN6O3
Molecular Weight 557.04 CAS No. 698387-09-6
Solubility (25°C)* In vitro DMSO 6 mg/mL (10.77 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 Neratinib is a highly selective HER2 and EGFR inhibitor with IC50 of 59 nM and 92 nM in cell-free assays; weakly inhibits KDR and Src, no significant inhibition to Akt, CDK1/2/4, IKK-2, MK-2, PDK1, c-Raf and c-Met. Phase 3.
Targets
HER2 [1]
(Cell-free assay)		 EGFR [1]
(Cell-free assay)		 KDR [1]
(Cell-free assay)		 Src [1]
(Cell-free assay)
59 nM 92 nM 800 nM 1.4 μM
In vitro Neratinib weakly inhibits tyrosine kinases KDR and Src with IC50 of 0.8 μM and 1.4 μM, respectively, being 14- and 24-fold less active compared with HER2. Neratinib displays no activity against other serine-threonine kinases such as Akt, cyclin D1/cdk4, cyclin E/cdk2, cyclin B1/cdk1, IKK-2, MK-2, PDK1, c-Raf, and Tpl-2, as well as the tyrosine kinase c-Met. Neratinib selectively inhibits the proliferation of 3T3 cells transfected with the HER2 (3T3/neu), as well as two other HER-2-overexpressing SK-Br-3 and BT474 cells with IC50 values of 2-3 nM, displaying >230-fold potency compared with non-transfected 3T3 cells as well as MDA-MB-435 and SW620 which are EGFR- and HER2-negative. Neratinib also inhibits the proliferation of EGFR-dependent A431 cells with an IC50 of 81 nM. Neratinib reduces HER2 receptor autophosphorylation in BT474 cells with an IC50 of 5 nM, and EGF-dependent phosphorylation of EGFR in A431 cells with IC50 of 3 nM. Blocking of HER-2 by Neratinib results in inhibition of downstream MAPK and Akt pathways with IC50 of 2 nM, more potently than Trastuzumab. Neratinib inhibits the cyclin D1 expression and the phosphorylation of the Rb-susceptibility gene production in BT474 cells with IC50 of 9 nM, leading to G1-S arrest and ultimately decreased cell proliferation. [1]
In vivo Oral administration of Neratinib significantly inhibits the growth of 3T3/neu xenografts, with inhibition of 34%, 53%, 98%, and 98% at dose of 10, 20, 40, and 80 mg/kg/day, respectively. Consistent with the inhibition of HER-2 phosphorylation by 84% within 1 hour of administration at 40 mg/kg/day, Neratinib inhibits the growth of BT474 xenografts by 70-82%, 67%, and 93% at dose of 5, 10, and 40 mg/kg/day, respectively. Neratinib is also effective against SK-OV-3 xenografts with inhibition of 31% and 85% at 5 and 60 mg/kg/day, respectively. Neratinib is less potent against EGFR-dependent A431 xenografts than HER-2-dependent tumors, with 32% and 44% inhibition at 5 and 20 mg/kg/day, respectively. Neratinib displays little activity against MCF-7 and MX-1 xenografts expressing low levels of HER-2 and EGFR, with only 28% inhibition at 80 mg/kg/day, suggesting that Neratinib has selective activity for cells expressing HER-2 or EGFR. [1]

Protocol (from reference)

Kinase Assay:[1]
  • Cell-free autophosphorylation assay using time-resolved fluorometry

    Neratinib is prepared as 10 mg/mL stocks in DMSO and diluted in 25 mM HEPES (pH 7.5; 0.002 ng/mL-20 μg/mL). Purified recombinant COOH-terminal fragments of HER2 (amino acids 676-1255) or epidermal growth factor receptor (EGFR) (amino acids 645-1186) [diluted in 100 mM HEPES (pH 7.5) and 50% glycerol] is incubated with increasing concentrations of Neratinib in 4 mM HEPES (pH 7.5), 0.4 mM MnCl2, 20 μM sodium vanadate, and 0.2 mM DTT for 15 minutes at room temperature in 96-well ELISA plates. The kinase reaction is initiated by the addition of 40 μM ATP and 20 mM MgCl2 and allowed to proceed for 1 hour at room temperature. Plates are washed, and phosphorylation is detected using Europium-labeled anti-phospho-tyrosine antibodies (15 ng/well). After washing and enhancement steps, signal is detected using a Victor2 fluorescence reader (excitation wavelength 340 nm, emission wavelength 615 nm). The concentration of Neratinib that inhibits receptor phosphorylation by 50% (IC50) is calculated from inhibition curves.
Cell Assay:[1]
  • Cell lines

    3T3, 3T3/neu, A431, BT474, SK-Br-3, MDA-MB-435, and SW480

  • Concentrations

    Dissolved in DMSO, final concentrations 0.5 ng/mL-5 μg/mL

  • Incubation Time

    2 or 6 days

  • Method

    Cells are exposed to various concentrations of Neratinib for 2, or 6 days. Cell proliferation is determined using sulforhodamine B, a protein binding dye. Briefly, cells are fixed with 10% trichloroacetic acid and washed extensively with water. Cells are then stained with 0.1% sulforhodamine B and washed in 5% acetic acid. Protein-associated dye is solubilized in 10 mM Tris, and absorbance is measured at 450 nM. The concentration of Neratinib that inhibits cell proliferation by 50% (IC50) is determined from inhibition curves.
Animal Study:[1]
  • Animal Models

    Female athymic (nude) mice implanted s.c. with 3T3/neu, BT474, MCF-7, or SK-OV-3 cells

  • Dosages

    ~80 mg/kg/day

  • Administration

    Gavage

Customer Product Validation

Data from [Cancer Discov, 2013, 3, 224-37]

Data from [Cancer Discov, 2012, 2, 458-471]

Data from [Cancer Discov, 2012, 2, 458-471]

Data from [Data independently produced by , , Cancer Lett, 2016, 382(2):176-185]

Selleck's Neratinib has been cited by 103 publications

HER4 and EGFR activate cell signaling in NRG1 fusion-driven cancers: implications for HER2/HER3-specific vs. pan-HER targeting strategies [ J Thorac Oncol, 2023, S1556-0864(23)00802-X] PubMed: 37678511
Irreversible HER2 inhibitors overcome resistance to the RSL3 ferroptosis inducer in non-HER2 amplified luminal breast cancer [ Cell Death Dis, 2023, 14(8):532] PubMed: 37596261
Novel mutant KRAS addiction signature predicts response to the combination of ERBB and MEK inhibitors in lung and pancreatic cancers [ iScience, 2023, 26(3):106082] PubMed: 36852277
Inhibiting BRAF/EGFR/MEK suppresses cancer stemness and drug resistance of primary colorectal cancer cells [ Oncotarget, 2023, 14:879-889] PubMed: 37791907
Inhibiting BRAF/EGFR/MEK suppresses cancer stemness and drug resistance of primary colorectal cancer cells [ Oncotarget, 2023, 10.18632/oncotarget.28517] PubMed: 37791907
Novel HER2-targeted therapy to overcome trastuzumab resistance in HER2-amplified gastric cancer [ Sci Rep, 2023, 13(1):22648] PubMed: 38114573
Dishevelled 2 regulates cancer cell proliferation and T cell mediated immunity in HER2-positive breast cancer [ BMC Cancer, 2023, 23(1):172] PubMed: 36809986
Quantitative chemometric phenotyping of three-dimensional liver organoids by Raman spectral imaging [ Cell Rep Methods, 2023, 3(4):100440] PubMed: 37159662
Quantitative chemometric phenotyping of three-dimensional liver organoids by Raman spectral imaging [ Cell Reports Methods, 2023, 10.1016/j.crmeth.2023.100440] PubMed: None
Poziotinib for EGFR exon 20-mutant NSCLC: Clinical efficacy, resistance mechanisms, and impact of insertion location on drug sensitivity [ Cancer Cell, 2022, 40(7):754-767.e6] PubMed: 35820397

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