Catalog No.S2922 Synonyms: BPI-2009H
Molecular Weight(MW): 391.42
Icotinib is a potent and specific EGFR inhibitor with IC50 of 5 nM, including the EGFR, EGFR(L858R), EGFR(L861Q), EGFR(T790M) and EGFR(T790M, L858R).
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B. Effect of Icotinib treatment on the subcellular localization of ABCG2 in NCI-H460/MX20 cell. ABCG2 staining is shown in green. DAPI (blue) counterstains the nuclei. C. Effect of Icotinib on the ATPase activity of ABCG2: The BeFx-sensitive specific ATPase activity of ABCG2 was determined in the presence of 0-5 μM of Icotinib as described in supplemental methods. The activity in the absence of Icotinib (basal activity) was considered to be 100%, and % -fold stimulation ± S.D. (Y-axis) was plotted as a function of indicated concentrations of Icotinib (X-axis). D. Effect of Icotinib on the photolabeling of ABCG2 with [125I]-IAAP: Crude membranes from ABCG2 expressing MCF7-FLV1000 cells were photo-crosslinked with [125I]-IAAP in the presence and absence of 0-50 μM of Icotinib as described in supplemental methods. [125I]-IAAP incorporated in ABCG2 band was quantified using ImageQuant software and plotted as % [125I]-IAAP incorporated ± S.D. (Y-axis) as a function of varying concentration of Icotinib (X-axis). The upper panel shows a representative autoradiogram from three independent experiments and the arrow represents the ABCG2 band photo-crosslinked with [125I]-IAAP.
Oncotarget, 2015, 5(12):4529-42.. Icotinib purchased from Selleck.
Purity & Quality Control
Choose Selective EGFR Inhibitors
|Description||Icotinib is a potent and specific EGFR inhibitor with IC50 of 5 nM, including the EGFR, EGFR(L858R), EGFR(L861Q), EGFR(T790M) and EGFR(T790M, L858R).|
Icotinib inhibits EGFR activity in a dose-dependent manner, with an IC50 value of 5 nM and complete inhibition at 62.5 nM. Icotinib selectively solely inhibits the EGFR members including the wild type and mutants with inhibition efficacies of 61-99%. Icotinib blocks EGFR-mediated intracellular tyrosine phosphorylation in human epidermoid carcinoma A431 cells in a dose-dependent manner. Meanwhile, in our proliferation assay performed on A431, BGC-823, A549, H460, HCT8, KB and Bel-7402 cell lines, we found that the relative sensitivity of cell lines to Icotinib is A431 > BGC-823 > A549 > H460 > KB > HCT8 and Bel-7402. Icotinib exhibits a broad spectrum of antitumor activity and it is especially effective against tumors expressing higher levels of EGFR. 
|In vivo||Icotinib shows an antitumor effect in different types of xenografts. Icotinib inhibits tumor growth at a rate of 51.5%, 31.0% and 67.4% in the A431, A549 and H460 xenografts at a dose of 120 mg/kg, respectively. |
Biochemical kinase assays:In the in vitro kinase assays, 2.4 ng/μL EGFR protein is mixed with 32 ng/μL Crk in 25 μL kinase reaction buffer containing 1 μM cold ATP and 1 μCi 32P-γ-ATP. The mix is incubated with Icotinib at 0, 0.5, 2.5, 12.5 or 62.5 nM on ice for 10 min followed by incubation at 30 °C for 20 min. After quenching with SDS sample buffer at 100 °C for 4 min, the protein mix is resolved by electrophoresis in a 10% SDS-PAGE gel. The dried gel is then exposed to the PhosphorImager to detect radioactivity. Quantification is performed by ImageQuant software. In this methodology the radioactive signal inversely correlates with kinase activity.
|In vitro||DMSO||78 mg/mL (199.27 mM)|
|Ethanol||7 mg/mL (17.88 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
For best results, use promptly after mixing.
* 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.
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*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
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Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Clinical Trial Information
|NCT Number||Recruitment||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT03736837||Not yet recruiting||Non-small Cell Lung Cancer||Tianjin Medical University Cancer Institute and Hospital|Jiangsu Chia-tai Tianqing Pharmaceutical Co.Ltd||November 9 2018||Not Applicable|
|NCT03349203||Recruiting||EGF-R Positive Non-Small Cell Lung Cancer||Betta Pharmaceuticals Co.Ltd.||October 1 2018||Phase 2|
|NCT03720873||Recruiting||EGFR Gene Mutation||Fujian Cancer Hospital||October 2018||Phase 2|
|NCT03396185||Recruiting||EGFR Gene Mutation|Non Small Cell Lung Cancer Stage IIIA|Non Small Cell Lung Cancer Stage IIIB||Betta Pharmaceuticals Co.Ltd.||May 9 2018||Phase 2|
|NCT03402464||Not yet recruiting||EGFR Positive Non-Small Cell Lung CancerAdenocarcinoma||Beijing Cancer Hospital|Betta Pharmaceuticals Co.Ltd.||January 2018||Phase 2|
|NCT03346811||Recruiting||Plasma EGFR Mutation-positive Lung Cancer||Betta Pharmaceuticals Co.Ltd.||November 18 2017||Phase 2|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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