Human quantitative antibody arrays on glass slides are multiplex immunoassay platforms used to measure multiple human proteins simultaneously in biological samples. They consist of spatially arranged capture antibodies immobilized on functionalized glass surfaces. In sandwich immunoassay formats, target proteins bind to capture antibodies and are detected using labeled detection antibodies. Fluorescence signals can be quantified against analyte-specific calibration curves to estimate protein concentrations when appropriate standards are available. Depending on the assay design, results may provide absolute or relative protein quantification. These platforms support quantitative proteomics and protein biomarker profiling while potentially reducing sample consumption compared with performing separate immunoassays.
Key Features
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Multiplex protein quantification: Simultaneous measurement of selected human proteins, including cytokines, chemokines and growth factors.
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Glass-slide solid support: Spatially defined antibody spots enable parallel analyte detection and fluorescence-based signal acquisition.
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Quantitative analysis: Calibration standards, appropriate controls and replicate measurements support concentration estimation and assessment of assay performance.
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Low sample consumption: Multiple analytes can be evaluated from a single biological sample, depending on the array design and sample requirements.
Research Applications
Human quantitative antibody arrays are used to profile protein abundance in serum, plasma and cell culture supernatants, investigate inflammatory and immune responses, compare experimental conditions, and identify candidate protein biomarkers. Reliable data interpretation depends on assay validation, antibody specificity, cross-reactivity assessment, appropriate normalization and consideration of the assay's detection limits and dynamic range.
