What is Luminex Assay?
Luminex Assay: Bead-Based Immunoassays
Luminex assay is a bead-based immunoassay multiplex technique that allows multiple analytes (ex. cytokines, chemokines, metabolic biomarkers, etc.) to be quantitated simultaneously in a single biological matrix sample. Generally, the results obtained using a standardized Luminex assay are superior or equivalent to conventional ELISA, even as the differentiated xMAP technology allows high throughput biomarker testing with reduced sample volume, test preparation, and reagent costs. Luminex immunoassays can multiplex up to 100 compatible analytes simultaneously using a commercial or custom kit. Over the past few years, Luminex cytokine assays have been one of our most requested biomarker testing services.
Luminex Multiplex utilizes xMAP technology comprising a magnetic or non-magnetic bead-based flow cytometric platform. The Luminex system creates unique spectral addresses for the microspheres by labeling them as per the different ratios of red and far-red fluorophores. This technology can detect multiple targets in a single immunoassay system by assigning each of them with a unique address through the covalent attachment of these fluorescent antibodies to the beads. Thus, this multiplexed immunoassay system with a microplate format can simultaneously analyze up to 100 different nucleic acids, proteins, or peptides.
By using the Luminex Multiplex platform, we can detect and quantitate multiple biomarker proteins in the provided samples to evaluate the safety and efficacy of your therapeutics. Furthermore, Luminex bead-based assays can be used in bioanalytical studies utilizing cell-based assays and biomarkers for cardiac, kidney, inflammation, cancer, apoptosis, toxicity, obesity, and intracellular cell signaling (including phosphoproteins and nucleic acids). High-performance multiplex assay kits available through this platform can be a valuable asset in basic and translational research on various diseases for the simultaneous analysis of multiple proteins, including growth factors and cytokines such as interferons, interleukins, chemokines, and members of the tumor necrosis superfamily.