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Multiplex Cytokine Profiling of Stimulated Mouse Splenocytes Using a Cytometric Bead-based Immunoassay Platform
Published on: November 9, 2017
Bridging variability: toward standardized and harmonized multiplex bead-based flow cytometric cytokine assays
Xiaoran Feng1,2, Kai Guo3, Xinyu Zhou1,2
1National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China.
Insights
Multiplex bead-based flow cytometry offers powerful cytokine profiling but suffers from variability. Standardization efforts are crucial for reliable clinical application of these immune status assays.
Area of Science:
- Immunology
- Clinical Laboratory Science
- Biotechnology
Background:
- Cytokine profiling is vital for assessing immune status and treatment efficacy in clinical settings.
- Multiplex bead-based flow cytometry provides sensitive, specific, and high-throughput cytokine quantification.
- Significant variability in these assays hinders reproducibility and clinical adoption.
Purpose of the Study:
- To review methodologies and sources of variability in multiplex bead-based flow cytometric cytokine assays.
- To highlight advances in assay standardization and harmonization.
- To propose collaborative frameworks for improving assay reliability.
Main Methods:
- Comprehensive literature review of multiplex bead-based flow cytometry for cytokine analysis.
- Identification and analysis of key procedural steps contributing to assay variability.
- Examination of current standardization and harmonization strategies.
Main Results:
- Identified major sources of intra- and inter-laboratory variability in cytokine assays.
- Summarized recent advancements in standardizing multiplex flow cytometry techniques.
- Outlined strategic frameworks for collaborative improvement.
Conclusions:
- Standardization and harmonization of multiplex cytokine assays are essential for clinical utility.
- Collaborative efforts between labs, manufacturers, and regulators can overcome variability challenges.
- Implementing standardized protocols will enhance assay reliability and enable wider clinical application.
Abstract:
Cytokine profiling has become an important tool in clinical laboratories, providing key insights into patients' immune status and therapeutic responses. Among various analytical techniques, multiplex bead-based flow cytometry has emerged as a key platform for high-throughput cytokine quantification owing to its superior sensitivity, specificity, and multiplexing capability. Nevertheless, substantial intra- and inter-laboratory variability remains a major obstacle, compromising reproducibility and diagnostic accuracy, ultimately constraining broader clinical application. This review comprehensively summarizes the methodologies and key procedural aspects of multiplex bead-based flow cytometric cytokine assays, identifies the principal sources of variability, and highlights recent advances in assay standardization and harmonization. Furthermore, it proposes strategic frameworks that emphasize collaborative efforts among clinical laboratories, instrument manufacturers, and regulatory agencies. Collectively, these initiatives, by providing a practical framework for standardizing and harmonizing multiplex cytokine assays in bead-based flow cytometry, are expected to pave the way for uniform measurements across diverse clinical settings, thereby enhancing assay reliability and clinical applicability.
