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Purified Rat Anti-Mouse CD274
Purified Rat Anti-Mouse CD274

Multicolor flow cytometric analysis of CD274 expression on resting and activated mouse splenic leucocytes. Balb/c mouse splenic leucocytes were either activated by culture with plate-bound Purified NA/LE Hamster Anti-Mouse CD3 antibody (Cat. No. 553057) for 3 days (37°C). The cells were then stained with PE Rat Anti-Mouse CD4 antibody (Cat. No. 553730/557308/561829) and either Purified Rat IgG2a, κ Isotype Control (Cat. No. 553996; Left Plot) or Purified Rat Anti-Mouse CD274 antibody (Cat. No. 567839; Right Plot) at 0.25 µg/test, followed by FITC Mouse Anti-Rat IgG2a (Cat. No. 553896). DAPI (4',6-Diamidino-2-Phenylindole, Dihydrochloride) Solution (Cat. No. 564907) was added to cells right before analysis. Bivariate pseudocolor density plots showing the correlated expression of CD274 (or Ig Isotype control staining) versus CD4 were derived from gated events with the forward and side light- scatter characteristics of viable (DAPI-negative) leucocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ Cell Analyzer System and FlowJo™ software. Data shown on this Technical Data Sheet are not lot specific.

Multicolor flow cytometric analysis of CD274 expression on resting and activated mouse splenic leucocytes. Balb/c mouse splenic leucocytes were either activated by culture with plate-bound Purified NA/LE Hamster Anti-Mouse CD3 antibody (Cat. No. 553057) for 3 days (37°C). The cells were then stained with PE Rat Anti-Mouse CD4 antibody (Cat. No. 553730/557308/561829) and either Purified Rat IgG2a, κ Isotype Control (Cat. No. 553996; Left Plot) or Purified Rat Anti-Mouse CD274 antibody (Cat. No. 567839; Right Plot) at 0.25 µg/test, followed by FITC Mouse Anti-Rat IgG2a (Cat. No. 553896). DAPI (4',6-Diamidino-2-Phenylindole, Dihydrochloride) Solution (Cat. No. 564907) was added to cells right before analysis. Bivariate pseudocolor density plots showing the correlated expression of CD274 (or Ig Isotype control staining) versus CD4 were derived from gated events with the forward and side light- scatter characteristics of viable (DAPI-negative) leucocytes. Flow cytometry and data analysis were performed using a BD LSRFortessa™ Cell Analyzer System and FlowJo™ software. Data shown on this Technical Data Sheet are not lot specific.

Product Details
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BD Pharmingen™
B7-H1, PD-L1; PD1L1; Programmed death ligand 1
Mouse (QC Testing)
Rat SD, also known as Sprague-Dawley (outbred) IgG2a, λ
DBA/2 mouse lymphoma L5178Y transfected with Pdcd1lg1 cDNA
Flow cytometry (Routinely Tested)
0.5 mg/ml
60533
Aqueous buffered solution containing ≤0.09% sodium azide.
RUO


Preparation And Storage

Store undiluted at 4°C. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. An isotype control should be used at the same concentration as the antibody of interest.
  3. 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.
  4. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
  5. Sodium azide is a reversible inhibitor of oxidative metabolism; therefore, antibody preparations containing this preservative agent must not be used in cell cultures nor injected into animals. Sodium azide may be removed by washing stained cells or plate-bound antibody or dialyzing soluble antibody in sodium azide-free buffer. Since endotoxin may also affect the results of functional studies, we recommend the NA/LE (No Azide/Low Endotoxin) antibody format, if available, for in vitro and in vivo use.
  6. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
567839 Rev. 1
Antibody Details
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MIH5

The MIH5 monoclonal antibody specifically binds to CD274, also known as B7-H1 or PDL1, a 43-kDa glycoprotein encoded by the Pdcd1lg1 gene of the B7 family of the Ig superfamily. Pdcd1lg1 mRNA is expressed in more tissues than other members of the B7 family; transcripts are found in lymphoid tissues and many, but not all, non-lymphoid tissues. The protein has been detected at low levels on resting peripheral T and B lymphocytes, macrophages, and dendritic cells. B7-H1 mRNA and protein expression are upregulated upon activation of T and B cells, macrophages, dendritic cells, and epidermal keratinocytes by a variety of stimulatory factors. B7-H1's receptor, PD-1, contains an ITIM (Immunoreceptor Tyrosine-based Inhibitory Motif) on its intracytoplasmic region and is expressed on activated B and T lymphocytes, suggesting that B7-H1-PD-1 interaction may be involved in the negative regulation of immune responses. The second PD-1 ligand, B7-DC (PD-L2), is also a member of the B7 family of the Ig superfamily. Furthermore, B7-H1 may participate in positive immunoregulation, or costimulation of T cells, through an additional receptor, which is not PD-1 and distinct from the alternate receptor for B7-DC. The MIH5 antibody blocks the binding of PD-1-Ig to B7-H1 transfectants.

        

567839 Rev. 1
Format Details
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Purified
Tissue culture supernatant is purified by either protein A/G or affinity purification methods. Both methods yield antibody in solution that is free of most other soluble proteins, lipids, etc. This format provides pure antibody that is suitable for a number of downstream applications including: secondary labeling for flow cytometry or microscopy, ELISA, Western blot, etc.
Purified
567839 Rev.1
Citations & References
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Development References (9)

  1. Ansari MJ, Salama AD, Chitnis T, et al. The programmed death-1 (PD-1) pathway regulates autoimmune diabetes in nonobese diabetic (NOD) mice. J Exp Med. 2003 July; 198(1):63-69. (Biology). View Reference
  2. Carreno BM, Collins M. The B7 family of ligands and its receptors: New pathways for costimulation and inhibition of immune responses. Annu Rev Immunol. 2002; 20:29-53. (Biology). View Reference
  3. Dong H, Chen L. B7-H1 pathway and its role in the evasion of tumor immunity. J Mol Med. 2003 May; 81(5):281-287. (Clone-specific). View Reference
  4. Hessel EM, Chu M, Lizcano JO, et al. Immunostimulatory oligonucleotides block allergic airway inflammation by inhibiting Th2 cell activation and IgE-mediated cytokine induction. J Exp Med. 2005; 202(11):1563-1573. (Clone-specific: Flow cytometry). View Reference
  5. Liu X, Gao JX, Wen J, et al. B7DC/PDL2 promotes tumor immunity by a PD-1-independent mechanism. J Exp Med. 2003; 197:1721-1730. (Biology). View Reference
  6. Tamura H, Dong H, Zhu G, et al. B7-H1 costimulation preferentially enhances CD28-independent T-helper cell function. Blood. 2001; 97(6):1809-1816. (Biology). View Reference
  7. Tsushima F, Iwai H, Otsuki N, et al. Preferential contribution of B7-H1 to programmed death-1-mediated regulation of hapten-specific allergic inflammatory responses. Eur J Immunol. 2003; 33(10):2773-2782. (Immunogen: Blocking, Enhancement, Functional assay, Immunofluorescence, Immunohistochemistry, Inhibition, In vivo exacerbation). View Reference
  8. Wang S, Bajorath J, Flies DB, Dong H, Honjo T, Chen L. Molecular modeling and functional mapping of B7-H1 and B7-DC uncouple costimulatory function from PD-1 interaction. J Exp Med. 2003; 197:1083-1091. (Biology). View Reference
  9. Yamazaki T, Akiba H, Iwai H, et al. Expression of programmed death 1 ligands by murine T cells and APC. J Immunol. 2002; 169(10):5538-5545. (Biology). View Reference
View All (9) View Less
567839 Rev. 1

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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.