Simple Plex Human B7-H1/PD-L1 2nd Gen Cartridge

Catalog #: SPCKB-PS-003468 Datasheet / COA / SDS
Simple Plex Human PD-L1/B7-H1 2nd Gen assay kit for use on Ella instrument. Contains cartridge, sample diluent SD13 and SD10, and wash buffer
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Catalog # Availability Size / Price Qty
SPCKB-PS-003468
SPCKA-PS-003468
SPCKC-PS-003468
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Human B7-H1 Simple Plex Assay
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Simple Plex Human B7-H1/PD-L1 2nd Gen Cartridge Summary

Assay Type
Automated sandwich ELISA
Format
Microfluidic cartridge containing three Glass Nano Reactors (GNR)
Assay Length
90 minutes
Sample Type & Volume Required Per Well*
Cell Culture Supernates (25 uL), Serum (25 uL), EDTA Plasma (25 uL), Heparin Plasma (25 uL), Urine (25 uL)
Sensitivity
0.19 pg/mL
Assay Range
0.6 - 5,332 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine)
Specificity
Natural and recombinant human B7-H1.
Cross-reactivity
< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
Interference
No significant interference observed with available related molecules.

*The Sample Volume represented is based on the amount of sample incorporated into the reaction after taking into account the assay’s minimum required dilution for a given matrix. Serial dilution may be necessary to achieve some of the final sample volumes represented.

Product Summary

Simple Plex assay for the detection of human B7-H1 in cell culture supernatant (CCS), serum, plasma (EDTA/Heparin), and urine.

Precision

Intra-Assay Precision (Precision within an assay) Each control was tested 16 times in one assay
Inter-Assay Precision (Precision between assays) Replicates of each control were tested in multiple assays performed by at least three technicians using two lots of reagents

Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma, Urine

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 1 2
n 16 16 49 48
Mean (pg/mL) 74.9 3685 71.7 3750
Standard Deviation 6.64 225 6.99 253
CV% 8.9 6.1 9.7 6.8

Recovery

Recovery was not necessary as B7-H1 shows natural linearity data from a neat sample to a 1:16 dilution.

Linearity

Samples containing and/or spiked with high concentrations of human B7-H1 were serially diluted with Sample Diluent to produce samples within the dynamic range of the assay.
Human B7-H1 Simple Plex Linearity

Scientific Data

Human B7-H1 Simple Plex Standard Curve

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Preparation and Storage

Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: PD-L1/B7-H1

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 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.

Long Name:
Programmed Death Ligand 1
Entrez Gene IDs:
29126 (Human); 60533 (Mouse); 499342 (Rat); 574058 (Porcine); 484186 (Canine); 102145573 (Cynomolgus Monkey)
Alternate Names:
Avelumab; B7-H; B7H1; B7-H1; B7H1PDCD1L1; CD274 antigenMGC142294; CD274 molecule; CD274; PDCD1L1; PDCD1LG1; PDCD1LG1MGC142296; PDL1; PD-L1; PD-L1B7 homolog 1; PDL1PDCD1 ligand 1; programmed cell death 1 ligand 1; Programmed death ligand 1

FAQs

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