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
- Researchers should determine the optimal concentration of this reagent for their individual applications.
- The production process underwent stringent testing and validation to assure that it generates a high-quality conjugate with consistent performance and specific binding activity. However, verification testing has not been performed on all conjugate lots.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- 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.
- CF™ is a trademark of Biotium, Inc.
- Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- 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.
Companion Products
The MIH18 monoclonal antibody specifically binds to CD273 which is also known as the Programmed Death Ligand 2 (PD-L2) and B7-DC. CD273 is a type 1 transmembrane glycoprotein member of the B7 family and Ig superfamily. CD273 serves as a ligand for CD279, the Programmed Death 1 (PD-1) receptor. CD273 is expressed by dendritic cells, activated monocytes, medullary thymic epithelial cells, placental trophoblasts, and myocardial endothelium. CD273 can function as a coinhibitor of T cell functions by acting through CD279. Monoclonal antibodies that block the CD273 and CD279 interaction result in enhanced T cell proliferation and cytokine production. Thus, CD273 can play an important role in regulating T cell responses. Clone MIH18 is reportedly a blocking antibody.
Development References (9)
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Bensussan A, Olive D. T-cell: section report.. Cell Immunol. 236(1-2):3-5. (Clone-specific: Flow cytometry). View Reference
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Brown JA, Dorfman DM, Ma FR, et al. Blockade of programmed death-1 ligand on dendritic cells enhances T cell activation and cytokine production. J Immunol. 2003; 170:1257-1266. (Biology). View Reference
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Carreno BM, Bennett F, Chau TA, et al. CTLA-4 (CD152) can inhibit T cell activation by two different mechanisms depending on its level of cell surface expression.. J Immunol. 2000; 165(3):1352-6. (Biology). View Reference
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Carter L, Fouser LA, Jussif J, et al. PD-1:PD-L inhibitory pathway affects both CD4(+) and CD8(+) T cells and is overcome by IL-2. Eur J Immunol. 2002; 32:634-643. (Biology). View Reference
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Latchman Y, Wood CR, Chernova T, et al. PD-L2 is a second ligand for PD-1 and inhibits T cell activation. Nat Immunol. 2001; 2(3):261-268. (Biology). View Reference
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Ohigashi Y, Sho M, Yamada Y, et al. Clinical significance of programmed death-1 ligand-1 and programmed death-1 ligand-2 expression in human esophageal cancer. Clin Cancer Res. 2005; 11:2947-2953. (Clone-specific: Immunohistochemistry). View Reference
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Pfistershammer K, Klauser C, Pickl WF, et al. No evidence for dualism in function and receptors: PD-L2/B7-DC is an inhibitory regulator of human T cell activation. Eur J Immunol. 2006; 36(5):1104-1113. (Clone-specific: Blocking, Flow cytometry, Functional assay). View Reference
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Youngnak P, Kozono Y, Kozono H, et al. Differential binding properties of B7-H1 and B7-DC to programmed death-1. Biochem Biophys Res Commun. 2003; 307(3):672-677. (Biology). View Reference
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Youngnak-Piboonratanakit P, Tsushima F, Otsuki N, et al. The expression of B7-H1 on keratinocytes in chronic inflammatory mucocutaneous disease and its regulatory role. Immunol Lett. 2004; 94(3):215-222. (Immunogen: Blocking, Flow cytometry, Immunofluorescence, Immunohistochemistry). 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.