Advanced phospho-ERK (Thr202/Tyr204) cellular kit
Simple, all-in-one kit for robust detection of Phospho-ERK.
Phospho-HER3 (Tyr1289) cellular kit HTRF®
The phospho-HER3 (Tyr1289) kit enables the cell-based detection of human epidermoid growth factor 3 (HR3, Erbb3) signaling activity when phosphorylated on Tyr1289
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High sensitivity
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Long stability
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Faster and more convenient than ELISA
Overview
The phospho-HER3 (Tyr1289) assay is designed for the robust quantification of HER3 (Erbb3) modulation when phosphorylated on Tyr1289, an indicator of many types of cancer pathologies. Overexpression of HER3, or human epidermoid receptor 3/ ErbB3, is considered as an indicator for a poor prognosis in human breast cancer. Heterodimerization of HER3 with HER2 is associated with an increase in the aggressiveness of a breast cancer. HER3 is also been found to be involved in prostate, gastric, colon, or other carcinomas. This makes HER3 a key target for anti-cancer therapies.
Benefits
- SPECIFICITY
- PRECISION
Phospho-HER3 (Tyr1289) assay principle
The Phospho-HER3 (Tyr1289) assay measures HER3 when phosphorylated at Tyr1289. Contrary to Western Blot, the assay is entirely plate-based and does not require gels, electrophoresis or transfer. The Phospho-HER3 (Tyr1289) assay uses 2 labeled antibodies: one with a donor fluorophore, the other one with an acceptor. The first antibody specifically binds to the phosphorylated motif on the protein, the second recognizes the protein independent of its phosphorylation state. Protein phosphorylation enables an immune-complex formation involving both labeled antibodies and which brings the donor fluorophore into close proximity to the acceptor, thereby generating a FRET signal. Its intensity is directly proportional to the concentration of phosphorylated protein present in the sample, and provides a means of assessing the proteins phosphorylation state under a no-wash assay format.
Phospho-HER3 (Tyr1289) 2-plate assay protocol
The 2 plate protocol involves culturing cells in a 96-well plate before lysis then transferring lysates to a 384-well low volume detection plate before adding Phospho-HER3 (Tyr1289) HTRF detection reagents. This protocol enables the cells' viability and confluence to be monitored.
Phospho-HER3 (Tyr1289) 1-plate assay protocol
Detection of Phosphorylated HER3 (Tyr1289) with HTRF reagents can be performed in a single plate used for culturing, stimulation and lysis. No washing steps are required. This HTS designed protocol enables miniaturization while maintaining robust HTRF quality.
HTRF Phospho-HER3 assays compared to Western Blot
Breast cancer cells were grown in a T175 flask at 37 °C, 5% CO2 for 48 h. Cells were then stimulated with 100 nM HRG Beta1 for 10 min. After medium removal, the cells were lysed with 3 mL of supplemented lysis buffer for 30 min at room temperature. Soluble fractions were collected after a 10 min centrifugation. Serial dilutions of the cell lysate were performed in the supplemented lysis buffer and 16 µL of each dilution were dispensed and analyzed side-by-side by Western Blot and by HTRF. Using HTRF phospho-HER3 (Tyr1289) only 5,000 cells are sufficient for minimal signal detection, while 80,000 cells are needed for a Western Blot signal. The HTRF phospho-HER3 assay is at least 16-fold more sensitive than the Western Blot.
Phospho HER3 modulation in several breast adenocarcinoma cell lines
100,000 human recombinant HER2/HER3, MCF-7, SK-BR-3 and breast cancer cells were plated in 96 well plates and incubated for 24h at 37 °C-5% Co2. After incubation with increasing concentrations of HRG Beta3 (10min), medium was removed and cells were lysed with 50µl of Lysis buffer for 30min at RT under gentle shaking. 16 µL of lysate were transferred into a 384-well sv white microplate and 4 µL of the HTRF phospho-HER3 detection reagents were added. HTRF signal was recorded after an overnight incubation.
Inhibition of HER3 phosphorylation by tyrosine kinase inhibitors and therapeutic antibodies
100,000 cells were plated in 96-well plate and incubated for 24 h at 37 °C - 5% Co2. Then, after a pre-treatment with a dose-response of inhibitors, the cells were or were not stimulated with 100 nM HRG Beta1 at 37 °C, 5% CO2. After these steps, medium was removed and cells were lysed with 50 µL of Lysis buffer for 30 min at RT under gentle shaking. For detection, 16 µL of lysate were transferred into 384-well sv white microplates: 4 µL of the HTRF phospho-HER3 detection reagents were added to detect the phosphorylated HER3 and 4 µL of the HTRF total-HER3 assay to detect the total protein. The HTRF signal was recorded after an overnight incubation.
Intracellular inhibition by tyrosine kinase inhibitor Lapatinib
Human breast carcinoma and SKBR3 cells were pre-treated for 30 min with a dose-response of Lapatinib, a small tyrosine kinase inhibitor, then stimulated for 10 min with 100 nM HRG Beta1 for 10 min.
Inhibition of phospho-HER3 by monoclonal antibodies
Human breast carcinoma BXPC3 cells were pre-treated for 30 min with a dose-response of mAb-X or mAb-Y, then stimulated for 10 min with 100 nM HRG Beta1 for 10 min. Both mAbs were kindly provided by Dr Thierry Chardès (IRCM Montpellier, France).
HER3 Epidermal growth factor signaling
HER3 is a receptor tyrosine kinase and belongs to the ErbB family of epidermal growth factor receptors. HER3 is present on the cell surface and is the only EGFR family member for which no ligand has been found yet. HER3 receptor activation induces auto-phosphorylation of HER3 on Tyr1289. This provides docking sites for a variety of adaptor proteins, kinases & phosphatases that induce downstream activation of several signal transduction cascades. The HER3/ErbB receptor regulates various biological processes such as cell proliferation, differentiation, survival, adhesion, migration & angiogenesis. Hyperactivity of HER3 is associated with cancer which make HER3 a key target for anti-cancer therapies. Heterodimerization of HER3 with HER2 relates to an increase in cancer aggressiveness.
Simplified pathway dissection with HTRF phospho-assays and CyBi-felix liquid handling
Analyse of PI3K/AKT/mTor translational control pathway - Application Notes
Open R&D: Sanofi Access Platform
In collaboration with Sanofi - Scientific Presentations
Cell Signaling: Biomarkers, Phospho- & total-protein Assays - Flyers
HTRF cellular phospho-protein assays
Physiologically relevant results fo fast flowing research - Flyers
Cell Signaling: Biomarkers, Phospho- & total-protein assays - Flyers
PI3K/AKT/mTor translational control pathway - Posters
Universal HTRF® phospho-protein platform: from 2D, 3D, primary cells to patient derived tumor cells
Analysis of a large panel of diverse biological samples and cellular models - Posters
Assays in action using biotherapeutics and small molecules - Posters
From 2D, 3D cell cultures to xenografts: A smart HTRF platform to maximize anticancer drug discovery
One technology across all samples - Application Notes
HTRF phospho assays reveal subtle drug induced effects in tumor-xenografts
Tumor xenograft analysis: HTRF versus Western blot - Application Notes
HTRF cell-based phospho-protein data normalization
Valuable guidelines for efficiently analyzing and interpreting results - Application Notes
HTRF phospho-total lysis buffer: a universal alternative to RIPA lysis buffers
Increased flexibility of phospho-assays - Application Notes
Multi-tissue cellular modeling and anlysis of insulin signaling - Posters
Best practices for analyzing brain samples with HTRF® phospho assays for neurosciences
Insider Tips for successful sample treatment - Technical Notes
HTRF Alpha-tubulin Housekeeping kit
Properly interpret your compound effect - Application Notes
Optimize your HTRF cell signaling assays on tissues
HTRF and WB compatible guidelines - Technical Notes
Key guidelines to successful cell signaling experiments
Mastering the art of cell signaling assays optimization - Guides
HTRF phospho-assays reveal subtle drug-induced effects
Detailed protocol and direct comparison with WB - Posters
A single technology for 2D cells, 3D cells, and xenograft models - Posters
Best practices for analyzing tumor xenografts with HTRF phospho assays
Protocol for tumor xenograft analysis with HTRF - Technical Notes
How to run a cell based phospho HTRF assay
What to expect at the bench - Videos
Unleash the potential of your phosphorylation research with HTRF
Unmatched ease of use, sensitivity and specificity assays - Videos
Cell-based kinase assays in HTS ? potential and limitations for primary and secondary screening
In collaboration with Bayer - Scientific Presentations
Product Insert HER3 P-Y1289 Kit / 64HR3PEG-64HR3PEH
64HR3PEG-64HR3PEH - Product Insert
All your HTRF assays in one document! - Catalog
A guide to Homogeneous Time Resolved Fluorescence
General principles of HTRF - Guides
How HTRF compares to Western Blot and ELISA
Get the brochure about technology comparison. - Brochures
HTRF® cell signaling platform combined with iCell® Hepatocytes
A solution for phospho-protein analysis in metabolic disorders - Posters
Unleash the potential of your phosphorylation research with HTRF
A fun video introducing you to phosphorylation assays with HTRF - Videos
How to run a cell based phospho HTRF assay
3' video to set up your Phospho assay - Videos
Guidelines for Cell Culture and Lysis in Different Formats Prior to HTRF Detection
Seeding and lysing recommendations for a number of cell culture vessels. - Technical Notes
Assessment of drug efficacy and toxicity by combining innovative technologies
Combination of AlphaLISA®, HTRF®, or AlphaLISA® SureFire® Ultra™ immunoassays with the ATPlite™ 1step cell viability assay - Application Notes
Methodological Aspects of Homogeneous Time-Resolved Fluorescence (HTRF)
Learn how to reduce time and sample consumption - Application Notes
Safety Data Sheet (DEU) HER3 P-Y1289 Kit / 64HR3PEG
64HR3PEG - Safety Data Sheet
Safety Data Sheet (ELL) HER3 P-Y1289 Kit / 64HR3PEG
64HR3PEG - Safety Data Sheet
Safety Data Sheet (FRA-FR) HER3 P-Y1289 Kit / 64HR3PEG
64HR3PEG - Safety Data Sheet
Safety Data Sheet (ITA) HER3 P-Y1289 Kit / 64HR3PEG
64HR3PEG - Safety Data Sheet
Safety Data Sheet (SPA) HER3 P-Y1289 Kit / 64HR3PEG
64HR3PEG - Safety Data Sheet
Safety Data Sheet (ENG-GB) HER3 P-Y1289 Kit / 64HR3PEG
64HR3PEG - Safety Data Sheet
Safety Data Sheet (ENG-US) HER3 P-Y1289 Kit / 64HR3PEG
64HR3PEG - Safety Data Sheet
Safety Data Sheet (DEU) HER3 P-Y1289 Kit / 64HR3PEH
64HR3PEH - Safety Data Sheet
Safety Data Sheet (ELL) HER3 P-Y1289 Kit / 64HR3PEH
64HR3PEH - Safety Data Sheet
Safety Data Sheet (FRA-FR) HER3 P-Y1289 Kit / 64HR3PEH
64HR3PEH - Safety Data Sheet
Safety Data Sheet (ITA) HER3 P-Y1289 Kit / 64HR3PEH
64HR3PEH - Safety Data Sheet
Safety Data Sheet (SPA) HER3 P-Y1289 Kit / 64HR3PEH
64HR3PEH - Safety Data Sheet
Safety Data Sheet (ENG-GB) HER3 P-Y1289 Kit / 64HR3PEH
64HR3PEH - Safety Data Sheet
Safety Data Sheet (ENG-US) HER3 P-Y1289 Kit / 64HR3PEH
64HR3PEH - Safety Data Sheet
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