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BV421 Rat Anti-Mouse CD357 (GITR)
BV421 Rat Anti-Mouse CD357 (GITR)

Multicolor flow cytometric analysis of CD357 (GITR) expression on splenic CD4+CD25- and CD4+CD25+ T lymphocytes. Mouse splenic leucocytes were preincubated with Purified Rat Anti-Mouse CD16/CD32 antibody (Mouse BD Fc Block™) (Cat. No. 553141/553142). The cells were then stained with APC Rat Anti-Mouse CD4 (Cat. No. 553051/561091) and BD Horizon™ PE-CF594 Rat Anti-Mouse CD25 (Cat. No. 562694/562695) antibodies, and either BD Horizon™ BV421 Rat IgG2b, κ Isotype Control (Cat. No. 562603; dashed line histograms) or BD Horizon™ BV421 Rat Anti-Mouse CD357 (GITR) antibody (Cat. No. 563391; solid line histograms). The fluorescence histograms were derived from either CD4+CD25- (Left Panel) or CD4+CD25+ (Right Panel) gated events with the forward and side light-scatter characteristics of viable leucocytes. Flow cytometric analysis was performed using a BD™ LSR II Flow Cytometer System.

Multicolor flow cytometric analysis of CD357 (GITR) expression on splenic CD4+CD25- and CD4+CD25+ T lymphocytes. Mouse splenic leucocytes were preincubated with Purified Rat Anti-Mouse CD16/CD32 antibody (Mouse BD Fc Block™) (Cat. No. 553141/553142). The cells were then stained with APC Rat Anti-Mouse CD4 (Cat. No. 553051/561091) and BD Horizon™ PE-CF594 Rat Anti-Mouse CD25 (Cat. No. 562694/562695) antibodies, and either BD Horizon™ BV421 Rat IgG2b, κ Isotype Control (Cat. No. 562603; dashed line histograms) or BD Horizon™ BV421 Rat Anti-Mouse CD357 (GITR) antibody (Cat. No. 563391; solid line histograms). The fluorescence histograms were derived from either CD4+CD25- (Left Panel) or CD4+CD25+ (Right Panel) gated events with the forward and side light-scatter characteristics of viable leucocytes. Flow cytometric analysis was performed using a BD™ LSR II Flow Cytometer System.

Product Details
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BD Horizon™
GITR; Gitr; glucocorticoid-induced TNFR-related protein; Tnfrsf18; AITR
Mouse (QC Testing)
Rat IgG2b
Mouse CD25+ CD4+ T Cell Line
Flow cytometry (Routinely Tested)
0.2 mg/ml
21936
AB_2738177
Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
RUO


Preparation And Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with BD Horizon BV421 under optimum conditions, and unconjugated antibody and free BD Horizon BV421 were removed.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
  3. An isotype control should be used at the same concentration as the antibody of interest.
  4. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
  5. 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.
  6. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  7. Pacific Blue™ is a trademark of Molecular Probes, Inc., Eugene, OR.
  8. Brilliant Violet™ 421 is a trademark of Sirigen.
563391 Rev. 1
Antibody Details
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DTA-1

The DTA-1 monoclonal antibody specifically binds to GITR [Glucocorticoid-induced Tumor necrosis factor (TNF) receptor family-Related], a 66-70-kDa homodimer glycoprotein that is a member of the TNF receptor superfamily and is also known as TNFRSF18 and CD357. As its name implies, GITR expression was first detected in T lymphocytes that had been treated with dexamethasone, a glucocorticoid. In normal naive mice, GITR is expressed at moderate levels on CD25-positive/CD4-positive/CD8a-negative thymocytes and on CD25-positive/CD4-positive/CD45RB-low splenocytes. It is also expressed at low levels on splenic CD25-negative/CD4-positive/CD45RB-low T lymphocytes, B lymphocytes, macrophages, and dendritic cells. Activation of T and B lymphocytes upregulates GITR expression. GITR is a costimulatory receptor that plays an important role in Regulatory T (Treg)-cell functions, and a GITR Ligand has been detected on B lymphocytes, macrophages, and dendritic cells. mAb DTA-1 abrogates suppression by Treg cells without affecting their proliferative response, while it is co-stimulatory for T lymphocytes that are not Treg cells.

The antibody was conjugated to BD Horizon™ BV421 which is part of the BD Horizon™ Brilliant Violet™ family of dyes.  With an Ex Max of 407-nm and Em Max at 421-nm, BD Horizon™ BV421  can be excited by the violet laser and detected in the standard Pacific Blue™ filter set (eg, 450/50-nm filter). BD Horizon™ BV421  conjugates are very bright, often exhibiting a 10 fold improvement in brightness compared to Pacific Blue™ conjugates.

563391 Rev. 1
Format Details
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BV421
The BD Horizon Brilliant Violet™ 421 (BV421) Dye is part of the BD Horizon Brilliant Violet™ family of dyes. This polymer-technology based dye has an excitation maximum (Ex Max) of 407-nm and an emission maximum (Em Max) at 423-nm. Driven by BD innovation, BV421 is designed to be excited by the violet laser (405-nm) and detected using an optical filter centered near 420-nm (e.g., a 431/28-nm or 450/50-nm bandpass filter). BV421 is an ideal alternative for V450 as it is approximately ten times brighter with less spillover into the BV510/V500 detector. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
altImg
BV421
Violet 405 nm
407 nm
423 nm
563391 Rev.1
Citations & References
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Development References (10)

  1. Beilharz MW, Sammels LM, Paun A, et al. Timed ablation of regulatory CD4-positive T cells can prevent murine AIDS progression. J Immunol. 2004; 172:4917-4925. (Biology). View Reference
  2. Dittmer U, He H, Messer RJ, et al. Functional impairment of CD8-positive T cells by regulatory T cells during persistent retroviral infection. Immunity. 2004; 20:293-303. (Clone-specific: In vivo exacerbation). View Reference
  3. Ji H, Liao G, Faubion WA, et al. The natural ligand for glucocorticoid-induced TNF receptor-related protein abrogates regulatory T cell suppression. J Immunol. 2004; 172:5823-5827. (Biology). View Reference
  4. Ko K, Yamazaki S, Nakamura K, et al. Treatment of advanced tumors with agonistic anti-GITR mAb and its effects on tumor-infiltrating Foxp3+CD25+CD4+ regulatory T cells. J Exp Med. 2005; 202(7):885-891. (Clone-specific: In vivo exacerbation). View Reference
  5. Kohm AP, Williams JS, Miller SD. Ligation of the glucocorticoid-induced TNF receptor enhances autoreactive CD4-positive T cell activation and experimental autoimmune encephalomyelitis. J Immunol. 2004; 172:4686-4690. (Clone-specific: Flow cytometry, In vivo exacerbation). View Reference
  6. Nocentini G, Giunchi L, Ronchetti S, et al. A new member of the tumor necrosis factor/nerve growth factor receptor family inhibits T cell receptor-induced apoptosis. Proc Natl Acad Sci U S A. 1997; 94:6216-6221. (Biology). View Reference
  7. Shimizu J, Moriizumi E. CD4-positive CD25-negative T cells in aged mice are hyporesponsive and exihibit suppressive activity. J Immunol. 2003; 170:1675-1682. (Clone-specific: Functional assay). View Reference
  8. Shimizu J, Yamazaki S, Takahashi T, Ishida Y, Sakaguchi S. Stimulation of CD25-positive CD4-positive regulatory T cells through GITR breaks immunological self-tolerance. Nat Immunol. 2002; 3(2):135-142. (Immunogen: Cell separation, Flow cytometry, Functional assay, Immunoprecipitation, Inhibition, In vivo exacerbation). View Reference
  9. Tone M, Tone Y, Adams E, et al. Mouse glucocorticoid-induced tumor necrosis factor receptor ligand is costimulatory for T cells. Proc Natl Acad Sci U S A. 2003; 100(25):15059-15064. (Biology). View Reference
  10. Uraushihara K, Kanai T, Ko K, et al. Regulation of murine inflammatory bowel disease by CD25-positive and CD25negative CD4-positive glucocorticoid-induced TNF receptor family-related gene-positive regulatory T cells. J Immunol. 2003; 171:708-716. (Clone-specific: Cell separation, Flow cytometry, In vivo exacerbation). View Reference
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563391 Rev. 1

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For Research Use Only. Not for use in diagnostic or therapeutic procedures.