Neratinib (HKI-272)
Catalog No.S2150
Molecular Weight(MW): 557.04
Neratinib (HKI-272) 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.
6 Customer Reviews
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HER2 mutations V777L, D769H, V842I, G309A induce gain-of-function over HER2 WT in MCF10A mammary epithelial cells. B, HER2 WT, L755S, and del.755–759 cells were grown in Matrigel in the presence of DMSO vehicle (0.5%), neratinib (0.5 μmol/L) or gefitinib (0.5 μmol/L). Phase contrast images were obtained as in A. C, MCF10A-HER2 WT or mutants were seeded in soft agar. After 7 days of growth, they were treated with DMSO vehicle (0.5%), lapatinib (0.5 μmol/L) or neratinib (0.5 μmol/L) for an additional week. Error bars represent 95% highest posterior density intervals. *, Significant difference between the HER2 mutant and HER2 WT; #, the effect of inhibitor treatment was significant (95% highest posterior density interval did not contain 0 for both). D, photomicrographs of the colonies in soft agar on day 12, magnification ×40.
Cancer Discov 2013 3, 224-37. Neratinib (HKI-272) purchased from Selleck.
Differential sensitivity of EGFR-mutant glioma and lung cancer cell lines to the irreversible EGFR inhibitors HKI-272 and CI-1033. C, HKI-272 is more potent than CI-1033 in blocking EGFR phosphorylation in SKMG3 cells with EGFR EC mutation. SKMG3 cells were treated with the indicated doses of CI-1033 or HKI-272, and whole lysates were analyzed by immunoblot with the indicated antibodies.Cancer Discov 2012 2, 458-471. Neratinib (HKI-272) purchased from Selleck.
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Differential sensitivity of EGFR-mutant glioma and lung cancer cell lines to the irreversible EGFR inhibitors HKI-272 and CI-1033. A, HKI-272 induces cell death in GBM cells with EGFR EC mutation (SKMG3, SF268) but not EGFR wild-type (WT EGFR) cancer cell lines or astrocytes (NHA). Cell death was assessed by trypan blue exclusion after 5 days of inhibitor treatment. Cells lines in black express wild-type EGFR, whereas those in red contain EGFR EC mutations.Cancer Discov 2012 2, 458-471. Neratinib (HKI-272) purchased from Selleck.
(C, D) Cells were treated as mentioned above for the indicated times and processed for immunofluorescence experiments with anti-ErbB2 antibody (green). Nuclei were stained with DAPI (blue). Examples of intracellular ErbB2 punctae are indicated with yellow triangles. Scale bar = 10 μm.
Cancer Lett, 2016, 382(2):176-185. Neratinib (HKI-272) purchased from Selleck.
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Mean IC50 value of Neratinib. *IC50 is the mean concentration of drug that reduced cell survival by 50% in at least two experiments. Data are shown as mean ± SD (n=6) of one representative experiment. Similar results were obtained in three experiments. *p < 0.05; **p < 0.01;*** p < 0.001
Oncotarget, 2016, 7(36):58038-58050. Neratinib (HKI-272) purchased from Selleck.
Western blot analysis of EGFR, pEGFR, HER2, pHER2, HER3, pHER3, HER4 and pHER4 in parental and neratinib-resistant cells following treatment with 1M neratinib for 2h. Actin was probed as loading control.
Biochim Biophys Acta, 2018, 1865(8):1073-1087. Neratinib (HKI-272) purchased from Selleck.
Purity & Quality Control
Choose Selective HER2 Inhibitors
Biological Activity
| Description | Neratinib (HKI-272) 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Targets |
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| 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] |
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| Cell Data |
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| 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
| Kinase Assay:[1] |
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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. |
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| Cell Research:[1] |
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| Animal Research:[1] |
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Solubility (25°C)
| In vitro | DMSO | 5 mg/mL warmed (8.97 mM) |
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| Water | Insoluble | |
| Ethanol | Insoluble | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 30% PEG400+0.5% Tween80+5% propylene glycol For best results, use promptly after mixing. |
5 mg/mL |
* 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.
Chemical Information
| Molecular Weight | 557.04 |
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| Formula | C30H29ClN6O3 |
| CAS No. | 698387-09-6 |
| Storage | powder |
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| Synonyms | N/A |
Bio Calculators
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Clinical Trial Information
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
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| NCT03457896 | Recruiting | Metastatic Colorectal Cancer | NSABP Foundation Inc|Puma Biotechnology Inc. | May 18 2018 | Phase 2 |
| NCT03101748 | Recruiting | Malignant Neoplasm of Breast | M.D. Anderson Cancer Center|Puma Biotechnology Inc. | January 29 2018 | Phase 1|Phase 2 |
| NCT03377387 | Recruiting | Breast Cancer | Memorial Sloan Kettering Cancer Center|Puma Biotechnology Inc. | December 13 2017 | Phase 1|Phase 2 |
| NCT03289039 | Recruiting | Breast Cancer | Dana-Farber Cancer Institute|Puma Biotechnology Inc. | October 25 2017 | Phase 2 |
| NCT03065387 | Recruiting | Malignant Neoplasm of Breast|Malignant Neoplasms of Digestive Organs|Malignant Neoplasms of Female Genital Organs|Malignant Neoplasms of Ill-defined Secondary and Unspecified Sites|Malignant Neoplasms of Independent (Primary) Multiple Sites|Malignant Neoplasms of Lip Oral Cavity and Pharynx|Malignant Neoplasms of Mesothelial and Soft Tissue|Malignant Neoplasms of Respiratory and Intrathoracic Organs|Malignant Neoplasms of Thyroid and Other Endocrine Glands|Malignant Neoplasms of Urinary Tract|Neoplasms of Uncertain or Unknown Behavior | M.D. Anderson Cancer Center|Puma Biotechnology Inc. | October 31 2017 | Phase 1 |
| NCT02977780 | Recruiting | Glioblastoma | Dana-Farber Cancer Institute|Eli Lilly and Company|Celgene|Puma Biotechnology Inc.|Accelerate Brain Cancer Cure | February 9 2017 | Phase 2 |
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