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- W4313383114 abstract "Abstract Approaches to quantify multiple cytokines have potential to improve understanding of mechanisms and progression of disease, including cancer pathogenesis. However, in healthy humans many cytokines are present at levels below the limits of quantification for established multiplex assays. We developed the Simoa Planar Array to enable protein quantification in biological samples with greater sensitivity than traditional ELISAs. In this study we applied Simoa Planar technology to simultaneous multiplex detection of cytokines, using minimal sample volumes, to achieve sensitivity greater than established multiplex immunoassays. Capture antibodies were printed in a circular pattern in microwells, with biotinylated detector antibodies and chemiluminescent detection used in a sandwich format. Antibody pairs were screened for ability to quantify analytes with minimal cross-reactivity. Pairs targeting IFNγ, IL-1β, IL-4, IL-5, IL-6, IL-8, IL-10, IL-12p70, IL-22 and TNFα were chosen, then assay conditions optimized to minimize matrix interferences. Analytical validation was performed, and circulating cytokine levels measured in normal human serum and plasma. 12.5 μL of human serum/plasma provided sufficient sample volume per replicate. Sub-picomolar LOD was achieved for all analytes; LLOQs ranged from 0.1 – 1.4 pg/mL. In normal human serum and plasma, > 80% normal samples were quantifiable (above LLOQ) for most analytes. Analytical validation confirmed sensitivity, precision, specificity and dilution linearity. The 10-plex Simoa Planar assay described here combines ultra-sensitivity with powerful multiplexing, enabling simultaneous detection of 10 cytokines in normal biological samples with superior sensitivity." @default.
- W4313383114 created "2023-01-06" @default.
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- W4313383114 date "2019-05-01" @default.
- W4313383114 modified "2023-10-10" @default.
- W4313383114 title "Development of a high sensitivity 10-plex human cytokine assay using Simoa Planar Array technology" @default.
- W4313383114 doi "https://doi.org/10.4049/jimmunol.202.supp.52.21" @default.
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