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BD Horizon™ R718 Biosimilar Anti-Human HER2
Clone Trastuzumab297.rMAb (also known as Trastuzumab N297A Biosimilar.rMAb)
(RUO)Flow cytometric analysis of HER2 (Trastuzumab Biosimilar) expression on viable Human SK-BR-3 cells. Cells from the Human SK-BR-3 (Breast adenocarcinoma, ATCC® HTB-30™) cell line were preincubated with BD Pharmingen™ Human BD Fc Block™ (Cat. No. 564220) and then stained with either BD OptiBuild™ R718 IgG1, κ N297A Human Isotype Control (Cat. No. 756246; dashed line histogram) or BD Horizon™ R718 Biosimilar Anti-Human HER2 antibody (Cat. No. 570383/570453; solid line histogram). DAPI (4',6-Diamidino-2-Phenylindole, Dihydrochloride) Solution (Cat. No. 564907) was added to cells right before analysis. The fluorescence histogram showing HER2 (Trastuzumab Biosimilar) expression (or Ig Isotype control staining) was derived from gated events with the forward and side light-scatter characteristics of viable (DAPI-negative) cells. Flow cytometry and data analysis were performed using a BD LSRFortessa™ Cell Analyzer System and FlowJo™ Software.
BD Horizon™ R718 Biosimilar Anti-Human HER2
Regulatory Status Legend
Any use of products other than the permitted use without the express written authorization of Becton, Dickinson and Company is strictly prohibited.
Preparation And Storage
Recommended Assay Procedures
BD® CompBeads can be used as surrogates to assess fluorescence spillover (compensation). When fluorochrome conjugated antibodies are bound to BD® CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and BD® CompBeads to ensure that BD® CompBeads are appropriate for your specific cellular application.
Product Notices
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
- An isotype control should be used at the same concentration as the antibody of interest.
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
- Human donor specific background has been observed in relation to the presence of anti-polyethylene glycol (PEG) antibodies, developed as a result of certain vaccines containing PEG, including some COVID-19 vaccines. We recommend use of BD Horizon Brilliant™ Stain Buffer in your experiments to help mitigate potential background. For more information visit https://www.bdbiosciences.com/en-us/support/product-notices.
- This product is provided under an Agreement between BIOTIUM and BD Biosciences. This product, and only in the amount purchased by buyer, may be used solely for buyer’s own internal research, in a manner consistent with the accompanying product literature. No other right to use, sell or otherwise transfer (a) this product, or (b) its components is hereby granted expressly, by implication or by estoppel. This product is for research use only. Diagnostic uses require a separate license from Biotium, Inc. For information on purchasing a license to this product including for purposes other than research, contact Biotium, Inc., 3159 Corporate Place, Hayward, CA 94545, Tel: (510) 265-1027. Fax: (510) 265-1352. Email: btinfo@biotium.com.
- Alexa Fluor™ is a trademark of Life Technologies Corporation.
- For U.S. patents that may apply, see bd.com/patents.
Companion Products
The Trastuzumab297.rMAb (also known as Trastuzumab N297A Biosimilar.rMAb) is a research grade, chimeric recombinant human IgG1 kappa antibody that specifically recognizes the extracellular domain of Human Epidermal Growth Factor Receptor 2 (also known as HER2, HER-2, ErbB2, NEU, or CD340) similarly to the therapeutic Trastuzumab antibody. The Trastuzumab297.rMAb uses the same variable region sequences as Trastuzumab, combined with constant region sequences derived from consensus sequences of human IgG1, kappa. The asparagine at position 297 of the constant heavy chain has been replaced with alanine (N297A) to further reduce Fc receptor interactions of this reagent. Trastuzumab is a humanized therapeutic monoclonal antibody that was originally made by inserting the immunoglobulin (Ig) variable region sequences of the human HER-2-specific mouse monoclonal, 4D5. HER2 is a ~185 kDa type I transmembrane glycoprotein that is encoded by ERBB2 (erb-b2 receptor tyrosine kinase 2) which belongs to the ERBB family of receptor tyrosine kinases that includes EGFR (HER1), HER3, and HER4. Members of this receptor subfamily mediate the proliferation and differentiation of normal cells. Although HER2 has no identified direct-binding ligand, it forms signaling heterodimeric receptors with other ligand-bound ERBB family members. HER2 activates intracellular signaling pathways including MAPK and PI-3K through its cytoplasmic tyrosine kinase-containing region. HER2 is expressed by bone marrow mesenchymal stem cells. It is overexpressed and plays a significant role in the development of multiple human cancers including some leukemias, neuroblastomas, and carcinomas.
The Trastuzumab297.rMAb is intended for research use only. It is not intended for use in therapeutic or diagnostic procedures for humans or animals.
Development References (3)
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Carter P, Presta L, Gorman CM, et al. Humanization of an anti-p185HER2 antibody for human cancer therapy.. Proc Natl Acad Sci U S A. 1992; 89(10):4285-9. (Biology). View Reference
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Goldenberg MM. Trastuzumab, a recombinant DNA-derived humanized monoclonal antibody, a novel agent for the treatment of metastatic breast cancer.. Clin Ther. 1999; 21(2):309-18. (Biology). View Reference
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Stancovski I, Hurwitz E, Leitner O, Ullrich A, Yarden Y, Sela M. Mechanistic aspects of the opposing effects of monoclonal antibodies to the ERBB2 receptor on tumor growth.. Proc Natl Acad Sci USA. 1991; 88(19):8691-5. (Biology). View Reference
Please refer to Support Documents for Quality Certificates
Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described
Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims. Comparisons are not made against non-BD technologies, unless otherwise noted.
For Research Use Only. Not for use in diagnostic or therapeutic procedures.