Human PD-L1/B7-H1 Alexa Fluor® 488-conjugated Antibody Summary
-H4, rhPD-L2, recombinant mouse B7-H1, recombinant rat (rr) B7-1, or rrB7-2 is observed.
Phe19-Thr239
Accession # Q9NZQ7
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
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Detection of B7-H1/PD-L1 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) (A) resting or (B) treated with 1 µg/mL LPS overnight were stained with Mouse Anti-Human CD14 APC-conjugated Monoclonal Antibody (Catalog # FAB3832A) and Mouse Anti-Human B7-H1/PD-L1 Alexa Fluor® 488-conjugated Monoclonal Antibody (Catalog # FAB1561G). Quadrant markers were set based on control antibody staining (Catalog # IC002G). View our protocol for Staining Membrane-associated Proteins.
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Detection of PD-L1/B7-H1 in MDA-MB-231 Human Cell Line by Flow Cytometry. MDA-MB-231 human breast adenocarcinoma cell line was stained with Mouse Anti-Human PD-L1/B7-H1 Alexa Fluor® 488-conjugated Monoclonal Antibody (Catalog # FAB1561G, filled histogram) or isotype control antibody (Catalog # IC002G, open histogram). Adherent cells were prepared by either manual scraping or with TrypLE Express treatment with similar results. View our protocol for Staining Membrane-associated Proteins.
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Preparation and Storage
- 12 months from date of receipt, 2 to 8 °C as supplied.
Background: PD-L1/B7-H1
Human B7 homolog 1 (B7-H1), also called programmed death ligand 1 (PD-L1)and programmed cell death 1 ligand 1 (PDCD1L1), is a member of the growing B7 family of immune proteins that provide signals for both stimulating and inhibiting T cell activation. Other family members include B7-1, B7-2, B7-H2, PDL2 and B7-H3. B7 proteins are members of the immunoglobulin (Ig) superfamily. Their extracellular domains contain 2 Ig-like domains and all members have short cytoplasmic domains. Among the family members, there is about 20-25% amino acid identity. Human and mouse B7-H1 share approximately 70% amino acid sequence identity. B7-H1 has been identified as one of two ligands for programmed death-1 (PD-1), a member of the CD28 family of immunoreceptors. The B7-H1 gene encodes a 291 amino acid (aa) type I membrane precursor protein with a putative 18 aa signal peptide, a 220 aa extracellular domain, a 21 aa transmembrane region, and a 31 aa cytoplasmic domain. Human B7-H1 is constitutively expressed in several organs such as heart, skeletal muscle, placenta and lung, and in lower amounts in thymus, spleen, kidney and liver. B7-H1 expression is upregulated in a small fraction of activated T and B cells and a much larger fraction of activated monocytes. B7-H1 expression is also induced in dendritic cells and keratinocytes after IFN-gamma stimulation. Interaction of B7-H1 with PD-1 results in inhibition of TCR-mediated proliferation and cytokine production. The B7-H1:PD-1 pathway is involved in the negative regulation of some immune responses and may play an important role in the regulation of peripheral tolerance.
- Nishimura, H. and T. Honjo (2001) Trends Immunol. 22:265.
- Freeman, G.J. et al. (2000) J. Exp. Med. 192:1027.
- Latchman, Y. et al. (2001) Nat. Immunol. 2:261.
Product Datasheets
Product Specific Notices
This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.
Citations for Human PD-L1/B7-H1 Alexa Fluor® 488-conjugated Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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Citations: Showing 1 - 3
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BiTE-Secreting CAR-??T as a Dual Targeting Strategy for the Treatment of Solid Tumors
Authors: Huang SW, Pan CM, Lin YC et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
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Mesenchymal stromal cells induce regulatory T cells via epigenetic conversion of human conventional CD4 T cells in vitro
Authors: RI Azevedo, E Minskaia, A Fernandes-, AIS Vieira, CL da Silva, JMS Cabral, JF Lacerda
Stem Cells, 2020-04-30;0(0):.
Species: Human
Sample Types: Whole Cells
Applications: Flow Cytometry -
Frequent expression of PD-L1 on circulating breast cancer cells.
Authors: Mazel M, Jacot W, Pantel K, Bartkowiak K, Topart D, Cayrefourcq L, Rossille D, Maudelonde T, Fest T, Alix-Panabieres C
Mol Oncol, 2015-06-09;9(9):1773-82.
Species: Human
Sample Types: Whole Cells
Applications: Flow Cytometry
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