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Microfluidic Approach to Resolve Simultaneous and Sequential Cytokine Secretion of Individual Polyfunctional Cells
Published on: March 8, 2024
An integrated microfluidic platform for in situ cellular cytokine secretion immunophenotyping
Nien-Tsu Huang1, Weiqiang Chen1,2, Bo-Ram Oh1
1Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA. jpfu@umich.edu.
Lab on a Chip
|August 16, 2012
Summary
This study introduces a microfluidic platform for rapid, sensitive cellular immunophenotyping. The assay uses fewer cells and less time than traditional methods, aiding infectious disease diagnosis.
Area of Science:
- Biomedical Engineering
- Immunology
- Microfluidics
Background:
- Cell-secreted biomarker proteins are crucial for personalized diagnosis and treatment of infectious diseases.
- Current cellular immunophenotyping assays often require large sample volumes and extensive time.
- Developing rapid, quantitative, and sample-efficient detection methods is essential.
Purpose of the Study:
- To develop a highly integrated microfluidic platform for rapid, quantitative detection of cell-secreted biomarker proteins.
- To achieve high-sensitivity cellular immunophenotyping using a no-wash, bead-based chemiluminescence immunodetection scheme.
- To enable in situ monitoring of immune cell functions for improved diagnosis and treatment.
Main Methods:
- Utilized a microfluidic device with a THP-1 human acute moncytic leukemia cell line.
- Stimulated cells with lipopolysaccharide (LPS) in a controlled on-chip environment.
- Employed a no-wash, bead-based chemiluminescence immunodetection scheme to measure secreted tumor necrosis factor-alpha (TNF-α).
Main Results:
- Achieved high-sensitivity cellular immunophenotyping using 20-fold fewer cells than conventional assays.
- Reduced total assay time by 7-fold compared to traditional enzyme-linked immunosorbent assay (ELISA).
- Demonstrated successful on-chip stimulation and measurement of TNF-α secretion without flushing.
Conclusions:
- The developed microfluidic platform enables rapid, sample-efficient cellular immunophenotyping.
- This approach can significantly advance personalized diagnosis and treatment strategies for infectious diseases and immune disorders.
- In situ monitoring of immune cell functions via microfluidics offers a promising avenue for future medical applications.
