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Updated: May 10, 2026

Flow Cytometry and Single-Cell Analysis for Characterizing Microglia Activation in Early Postnatal Mouse Brain Development
Published on: October 3, 2025
Use of meso-scale discovery™ to examine cytokine content in microglia cell supernatant
1Karolinska Institutet, Stockholm, Sweden.
Abstract:
Cytokine production by activated microglia is one of the hallmarks of inflammatory response in the CNS. The cytokines released by microglia cells can be very different depending on the proinflammatory stimulus. Traditionally, to quantify these different cytokines, the "Sandwich"-enzyme-linked immunosorbent assay (Sandwich-ELISA) has been used. In this chapter we will discuss and describe an improved protocol of the Sandwich-ELISA developed by Meso-Scale Discovery based on an electrochemiluminescence detection system, which allows the ultralow detection of multiple cytokines in microglia cell supernatant.
Insights
This study presents an improved electrochemiluminescence-based assay for detecting multiple cytokines in activated microglia. The enhanced method allows for ultralow detection, offering a more sensitive approach to studying central nervous system inflammation.
Area of Science:
- Neuroscience
- Immunology
- Biochemistry
Background:
- Activated microglia are central to central nervous system (CNS) inflammatory responses.
- Microglial cytokine production varies significantly with different pro-inflammatory stimuli.
- Quantifying these diverse cytokines traditionally relies on Sandwich-enzyme-linked immunosorbent assay (Sandwich-ELISA).
Purpose of the Study:
- To describe an improved protocol for cytokine quantification in microglia supernatant.
- To introduce an electrochemiluminescence-based detection system for enhanced sensitivity.
- To enable ultralow detection of multiple cytokines, advancing CNS inflammatory research.
Main Methods:
- Utilized an improved Sandwich-ELISA protocol.
- Employed a Meso-Scale Discovery electrochemiluminescence detection system.
- Analyzed cytokine levels in microglia cell supernatant.
Main Results:
- Achieved ultralow detection limits for multiple cytokines.
- Demonstrated the efficacy of the electrochemiluminescence system for microglia supernatant analysis.
- Provided a sensitive method for quantifying diverse cytokine profiles.
Conclusions:
- The developed electrochemiluminescence-based Sandwich-ELISA offers superior sensitivity for cytokine detection.
- This improved assay facilitates a deeper understanding of microglia-mediated CNS inflammation.
- The protocol enables precise quantification of multiple cytokines crucial for inflammatory response studies.

