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Flow cytometric analysis of BAFF (BLyS/CD257) expression on human U937 cells. Cells from the human U937 (Histiocytic Lymphoma, ATCC CRL-1593.2) cell line were stained with BD Horizon™ BV421 Mouse IgG1, k Isotype Control (Cat. No. 562438; dashed line histogram) or BD Horizon™ BV421 Mouse Anti- Human BAFF (BLyS/CD257) antibody (Cat. No. 568056/568057; solid line histogram) at 2 µg/test. BD Via-Probe™ Cell Viability 7-AAD Solution (Cat. No. 555815/555816) was added to cells right before analysis. The fluorescence histogram showing BAFF (BLyS/CD257) expression (or Ig Isotype control staining) was derived from gated events with the light-scatter characteristics of viable (7-AAD-negative) cells. Flow cytometry and data analysis were performed using a BD LSRFortessa™ X20 Cell Analyzer System and FlowJo™ software. Data shown on this Technical Data Sheet are not lot specific.
BD Horizon™ BV421 Mouse Anti-Human BAFF (BLyS/CD257)
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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.
For optimal and reproducible results, BD Horizon Brilliant Stain Buffer should be used anytime BD Horizon Brilliant dyes are used in a multicolor flow cytometry panel. Fluorescent dye interactions may cause staining artifacts which may affect data interpretation. The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions. When BD Horizon Brilliant Stain Buffer is used in in the multicolor panel, it should also be used in the corresponding compensation controls for all dyes to achieve the most accurate compensation. For the most accurate compensation, compensation controls created with either cells or beads should be exposed to BD Horizon Brilliant Stain Buffer for the same length of time as the corresponding multicolor panel. More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794/566349) or the BD Horizon Brilliant Stain Buffer Plus (Cat. No. 566385).
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Companion Products
The H32-411 monoclonal antibody specifically recognizes B-cell activating factor (BAFF) which is also known as B-lymphocyte stimulator protein (BLyS), TNF and ApoL-related leukocyte expressed ligand 1 (TALL1), Dendritic cell-derived TNF-like molecule (DTL) and CD257. BAFF is a type II transmembrane glycoprotein that is encoded by TNFSF13B (TNF superfamily member 13b). BAFF can be expressed on B cells, macrophages, and dendritic cells as well as on tumor cells. Membrane and soluble forms of BAFF have been described. In its soluble form, BAFF can serve as a potent B cell growth factor in costimulation assays, suggesting its biological role in monocyte-driven B cell activation. BAFF has also been linked to B cell hyperplasia and autoimmunity.
Development References (9)
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Hase H, Kanno Y, Kojima M, et al. BAFF/BLyS can potentiate B-cell selection with the B-cell coreceptor complex.. Blood. 2004; 103(6):2257-65. (Biology). View Reference
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Litinskiy MB, Nardelli B, Hilbert DM, et al. DCs induce CD40-independent immunoglobulin class switching through BLyS and APRIL.. Nat Immunol. 2002; 3(9):822-9. (Biology). View Reference
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Mackay F, Schneider P. Cracking the BAFF code.. Nat Rev Immunol. 2009; 9(7):491-502. (Biology). View Reference
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Moore PA, Belvedere O, Orr A, et al. BLyS: member of the tumor necrosis factor family and B lymphocyte stimulator.. Science. 1999; 285(5425):260-3. (Biology). View Reference
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Mukhopadhyay A, Ni J, Zhai Y, Yu GL, Aggarwal BB. Identification and characterization of a novel cytokine, THANK, a TNF homologue that activates apoptosis, nuclear factor-kappaB, and c-Jun NH2-terminal kinase.. J Biol Chem. 1999; 274(23):15978-81. (Biology: Flow cytometry). View Reference
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Nardelli B, Belvedere O, Roschke V, et al. Synthesis and release of B-lymphocyte stimulator from myeloid cells.. Blood. 2001; 97(1):198-204. (Biology). View Reference
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Scapini P, Nardelli B, Nadali G, et al. G-CSF-stimulated neutrophils are a prominent source of functional BLyS.. J Exp Med. 2003; 197(3):297-302. (Biology). View Reference
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Schneider P, MacKay F, Steiner V, et al. BAFF, a novel ligand of the tumor necrosis factor family, stimulates B cell growth.. J Exp Med. 1999; 189(11):1747-56. (Biology). View Reference
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Shu HB, Hu WH, Johnson H. TALL-1 is a novel member of the TNF family that is down-regulated by mitogens.. J Leukoc Biol. 1999; 65(5):680-3. (Biology). View Reference
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For Research Use Only. Not for use in diagnostic or therapeutic procedures.