PD-L1, also known as B7-H1 and CD274, is an approximately 65 kDa transmembrane glycoprotein in the B7 family of immune regulatory molecules. PD-L1 is expressed on inflammatory-activated immune cells including macrophages, T cells, and B cells, keratinocytes, enothelial and intestinal epithelial cells, as well as a variety of carcinomas and melanoma. PD-L1 protein binds to T cell B7-1/CD80 and PD-1. It suppresses T cell activation and proliferation and induces the apoptosis of activated T cells. It plays a role in the development of immune tolerance by promoting T cell anergy and enhancing regulatory T cell development. PD-L1 favors the development of anti-inflammatory IL-10 and IL-22 producing dendritic cells and inhibits the development of Th17 cells. In cancer, PD-L1 provides resistance to T cell mediated lysis, enhances EMT, and enhances the tumorigenic function of Th22 cells. Many tumors overexpress PD-L1 protein making the PD-1:PD-L1 interaction central to several successful cancer immunotherapy approaches.
Key Product Details
Assay Type
Assay Range
Sample Type
Note: Diluents for complex matrices, such as serum and plasma, should be evaluated prior to use in this DuoSet
Reactivity
Human PD-L1 DuoSet ELISA Features
- Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
- Development protocols are provided to guide further assay optimization
- Assay can be customized to your specific needs
- Economical alternative to complete kits
Product Summary for Human PD-L1 DuoSet ELISA
Product Specifications
Assay Format
Sample Volume Required
Detection Method
Conjugate
Specificity
Label
Scientific Data Images for Human PD-L1 DuoSet ELISA
Human PD-L1 / B7-H1 ELISA Standard Curve
Kit Contents for Human PD-L1 DuoSet ELISA
- Capture Antibody
- Detection Antibody
- Recombinant Standard
- Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)
Other Reagents Required
DuoSet Ancillary Reagent Kit 2 (5 plates): (Catalog # DY008C) containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and Reagent Diluent Concentrate 2.
PBS: (Catalog # DY006), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2PO4, pH 7.2 - 7.4, 0.2 µm filtered
Wash Buffer: (Catalog # WA126), or equivalent
Reagent Diluent*
Blocking Buffer*
Substrate Solution: ELISA TMB Substrate (Catalog # DY999B or DY999B-250)
Stop Solution: Methanesulfonic acid (Catalog # DY994B or DY994B-250)
Microplates: (Catalog # DY990), or equivalent
Plate Sealers: (Catalog # DY992), or equivalent
*For the recommended Reagent Diluent and Blocking Buffer for a specific DuoSet ELISA Development Kit, refer to the product datasheet.
Preparation and Storage
Shipping
Stability & Storage
Background: PD-L1/B7-H1
Long Name
Alternate Names
Entrez Gene IDs
Gene Symbol
Additional PD-L1/B7-H1 Products
Product Documents for Human PD-L1 DuoSet ELISA
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human PD-L1 DuoSet ELISA
For research use only
Citations for Human PD-L1 DuoSet ELISA
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Sample Tested: SerumVerified Customer | Posted 04/04/2018
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
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