-
Your selected country is
Sweden
- Change country/language
Old Browser
This page has been recently translated and is available in French now.
Looks like you're visiting us from {countryName}.
Would you like to stay on the current country site or be switched to your country?
Analysis of ICOS (CD278) Expression Left Panel - Two-color flow cytometric analysis of ICOS (CD278) expression on human peripheral blood lymphocytes. Human blood was stained with BD Horizon™BV421 Mouse Anti-Human CD3 antibody (Cat. No. 562426) and either no antibody (BD Horizon™ BV650 Autofluorescence Control; Top Plot) or BD Horizon™ BV650 Hamster Anti-ICOS (CD278) antibody (Cat. No. 568040/568041; Bottom Plot) at 0.25 µg/test. The erythrocytes were lysed with BD FACS™ Lysing Solution (Cat. No. 349202). The bivariate pseudocolor density plot showing the correlated expression of ICOS (CD278) [or BD Horizon™ BV650 Autofluorescence] versus CD3 was derived from gated events with the forward and side light-scatter characteristics of intact lymphocytes. Right Panel - Multicolor flow cytometric analysis of ICOS (CD278) expression on mouse thymocytes. Mouse thymocytes cells were preincubated with Purified Rat Anti-Mouse CD16/CD32 antibody (Mouse BD Fc Block™) (Cat. No. 553141/553142). The cells were then stained with PE Rat Anti-Mouse CD4 (Cat. No. 553049) and BD Horizon™BUV395 Rat Anti-Mouse CD8a (Cat. No. 563786) antibodies, and either no antibody (BD Horizon™ BV650 Autofluorescence Control; dashed line histograms) or BD Horizon™ BV650 Hamster Anti-ICOS (CD278) antibody (solid line histograms) at 0.25 µg/test. DAPI Solution (Cat. No. 564907) was added to cells right before analysis. The fluorescence histograms showing ICOS (CD278) expression (or BD Horizon™ BV650 Autofluorescence) were derived from CD4 and CD8 gated events with the forward and side light-scatter characteristics of viable thymocytes as indicated. Flow cytometry and data analysis were performed using a BD LSRFortessa™ X-20 Cell Analyzer System and FlowJo™ software. Data shown on this Technical Data Sheet are not lot specific.
BD Horizon™ BV650 Armenian Hamster Anti-ICOS (CD278)
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.
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).
Product Notices
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- Source of all serum proteins is from USDA inspected abattoirs located in the United States.
- 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.
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- An isotype control should be used at the same concentration as the antibody of interest.
- Species cross-reactivity detected in product development may not have been confirmed on every format and/or application.
- BD Horizon Brilliant Violet 650 is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,227,187; 8,455,613; 8,575,303; 8,354,239.
- BD Horizon Brilliant Stain Buffer is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,575,303; 8,354,239.
- Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
- Alexa Fluor™ is a trademark of Life Technologies Corporation.
Companion Products
The C398.4A monoclonal antibody specifically binds to Inducible Costimulator (ICOS), which is also known as, CD278, Activation-inducible lymphocyte immunomediatory molecule (AILIM), or H4. ICOS is a type I transmembrane glycoprotein that forms a disulfide-linked homodimer and belongs to the CD28 family within the Ig superfamily. ICOS is expressed on either CD4+ or CD8+ single-positive mature thymocytes, T cells, or subsets of Innate Lymphoid Cells (ILC). Its expression is upregulated on activated T lymphocytes. ICOS is a costimulatory receptor that can bind to the B7-H2 ligand (CD275, ICOS-L) that is expressed on B cells, monocytes, macrophages, dendritic cells, and endothelial cells. ICOS plays a critical role in many types of T cell-dependent immunity. In the case of humoral immunity, for example, ICOS signaling is critical for the differentiation of T follicular helper (Tfh) cells and development of germinal centers. Although C398.4A was generated against mouse ICOS, this antibody reportedly crossreacts with human, rhesus, and rat ICOS.
Development References (10)
-
Araujo LM, Fert I, Jouhault Q, et al. Increased production of interleukin-17 over interleukin-10 by treg cells implicates inducible costimulator molecule in experimental spondyloarthritis. Arthritis Rheum. 2014; 66(9):2412-2422. (Clone-specific: Flow cytometry). View Reference
-
Brenchley JM, Vinton C, Tabb B, et al. Differential infection patterns of CD4+ T cells and lymphoid tissue viral burden distinguish progressive and nonprogressive lentiviral infections.. Blood. 2012; 120(20):4172-81. (Clone-specific: Flow cytometry). View Reference
-
Buonfiglio D, Bragardo M, Bonissoni S, et al. Characterization of a novel human surface molecule selectively expressed by mature thymocytes, activated T cells and subsets of T cell lymphomas. Eur J Immunol. 1999; 29(9):2863-2879. (Clone-specific: Flow cytometry, Immunohistochemistry, Immunoprecipitation, Radioimmunoassay). View Reference
-
Buonfiglio D, Bragardo M, Redoglia V, et al. The T cell activation molecule H4 and the CD28-like molecule ICOS are identical. Eur J Immunol. 2000; 30(12):3463-3467. (Clone-specific: Blocking, Flow cytometry). View Reference
-
Chen Y, Shen S, Gorentla BK, Gao J, Zhong XP. Murine regulatory T cells contain hyperproliferative and death-prone subsets with differential ICOS expression. J Immunol. 2012; 188(4):1698-1707. (Clone-specific: Flow cytometry, Fluorescence activated cell sorting). View Reference
-
Klatt NR, Vinton CL, Lynch RM et al. SIV infection of rhesus macaques results in dysfunctional T- and B-cell responses to neo and recall Leishmania major vaccination. Blood. 2011; 118(22):5803-5812. (Clone-specific: Flow cytometry). View Reference
-
McAdam AJ, Chang TT, Lumelsky AE, et al. Mouse inducible costimulatory molecule (ICOS) expression is enhanced by CD28 costimulation and regulates differentiation of CD4+ T cells.. J Immunol. 2000; 165(9):5035-40. (Biology). View Reference
-
Redoglia V, Dianzani U, Rojo JM, et al. Characterization of H4: a mouse T lymphocyte activation molecule functionally associated with the CD3/T cell receptor. Eur J Immunol. 1996; 26(11):2781-2789. (Immunogen: Bioassay, (Co)-stimulation, Flow cytometry, Functional assay, Immunoprecipitation, Radioimmunoassay). View Reference
-
Sonnenberg GF, Mjosberg J, Spits H, Artis D. SnapShot: innate lymphoid cells. Immunity. 2013; 39(3):622-623. (Biology). View Reference
-
Xu H, Wang X, Lackner AA, Veazey RS. PD-1(HIGH) Follicular CD4 T Helper Cell Subsets Residing in Lymph Node Germinal Centers Correlate with B Cell Maturation and IgG Production in Rhesus Macaques. Front Biosci. 2014; 5(85):1-7. (Clone-specific: Flow cytometry). 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.