Cytokines are small secretory proteins. They include chemokines, interferons, interleukins, growth factors, and tumor necrosis factors. Cytokines bind to receptors on effector cells to initiate signal transduction. Research has shown that cytokines are critical in immunological responses, including inflammation, infection, homeostasis, hematopoiesis, cellular development, tissue growth and repair, and tumorigenesis. Dysregulation or dysfunction of cytokines can result in multiple diseases. Hence, scientists must critically investigate this dysfunction to comprehend disease progression and mechanisms, and most importantly, discover novel therapeutic targets. Targeting cytokine and receptor interactions is a well-established approach towards drug target development.
Due to crucial cytokine functions and association with diseases, tools for cytokine detection are now vital for drug discovery and development projects. A robust and sensitive detection method can identify disease-related biomarkers and screen potential drug candidates. Additionally, high throughput and multiplexing capacities are ideal features for cytokine detection. For quantifying analytes at the protein level, most approaches are antibody-based assays, except for direct analyte determination approaches such as mass spectrometry analysis. Meso-scale discovery (MSD) assays have emerged as a promising tool for analysing cytokines and biomarkers. This tool offers a broad range of applications, such as PK Data Analysis. This article explores the functions and applications of mesoscale ELISA assays.
MSD assays for biomarker and cytokine analysis
MSD multi-array technology supports the detection of multiple biomarkers in multiplex and singleplex formats using next-generation electrochemiluminescence detection. The combination of patterned arrays and electrochemiluminescence detection gives rapid and highly dense data through organization, miniaturization, and parallel processing of biological data. The MSD assay line includes several singleplex and multiplex kits for profiling cell signal pathways, biomarkers, and other applications. Besides, they offer a suite of reagents and plates for MSD ELISA assay development.
The MSD platform offers a unique immunoassay platform for detecting and quantifying analytes in complex biological matrices. With over 400 assay kits and customization ability, MSD assays help make precise and accurate determinations of biomarker and cytokine levels in diverse biological samples. On MSD platforms, researchers can obtain high-quality data in less time with low cost and minimal effort. Hence, MSD assays are widely adopted by major clinical research organizations, pharmaceutical companies, biotech companies, and government and academic institutions.
Clinical samples are inherently complex. Hence, evaluating them with traditional immunoassay methods is challenging. Moreover, complex study matrices such as CSF, vaginal fluids, and sputum present at a wide range of concentrations but in limited sample volumes, makes clinical sample evaluation even more challenging. With improved sensitivity and broader dynamic range, MSD assays measure multiple analytes in a single sample volume. Besides, they are ideal for complex study matrices. Importantly, the MSD platform is suitable for regulated workflows as they are available for IQ/OQ/PQ validation and designed specifically to support GLP and 21 CFR Part 11 compliance. MSD Biomarker assays have multiple advantages:
- A broader dynamic range that helps measure biomarkers in diseased and control samples with minimal dilution
- Multiplexing capability and high sensitivity allow the analysis of multiple biomarkers in a single assay volume
- Highly adaptable formats facilitate quantification and detection of compounds in complex study matrices
MSD offers comprehensive solutions to screen, validate, and select biomarker tests. With over two decades of experience in designing and developing high-quality immunoassays, MSD can effectively accelerate biomarker programs from early discovery stages to production-ready, validated assays. Researchers can screen a wide range of biomarkers and translate relevant ones to focused panels for sample testing needs.
MSD supports researchers at every stage of the R&D. For scientists working on specific analyte combinations, MSD offers multiplex panels to fulfill all research needs. MSD works with sponsors to develop custom kits meeting their preferences, supported with a reliable MSD ELISA protocol. In case of any discrepancies, their field scientists and support team are ready and available to support experimental needs.
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Notably, MSD offers a unique service: Prototype Printing Services for assay development. This service is a convenient and rapid way to coat MSD plates with the material of their choice. The type of capture materials includes antibodies, proteins, peptides, carbohydrates, and polysaccharides. Additionally, MSD offers personalized and easy-to-build high-performance immunoassays to meet all research and development needs. Their assay formats include: R-plex, U-plex, T-plex, V-plex, and S-plex formats. Each of these formats offers unique capabilities that match individual experimental needs. For example, V-plex assays are analytically validated singleplex and multiplex assay kits. On the other hand, R-plex assays are singleplex assays or are available as matched antibody sets to build singleplex or multiplex assays.
Conclusion
MSD mesoscale assays are a convenient and rapid method for determining and measuring analyte levels in small volume samples. With a broad range of assay types suitable for multiple applications, these fast and highly sensitive assays allow scientists to measure low and high-abundance targets in the same sample without extra dilutions, measure several analytes in a single sample, and read assay plates in under 90 seconds. These features make MSD biomarker assays an ideal choice for analyzing cytokines and biomarkers.