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Updated: May 9, 2026
High Throughput Fluorometric Technique for Assessment of Macrophage Phagocytosis and Actin Polymerization
Published on: November 27, 2014
Protocol to stain phagocytic macrophages and assess phagocytosis function in phagocytic cells
Mostafa Changaei1, Seyed Adnan Kashfi1, Sara Soudi1
1Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Abstract:
The yeast phagocytosis assay serves as a foundational tool for directly visualizing and quantifying a phagocyte's ability to bind and internalize foreign targets. Here, we present a protocol for analyzing phagocytosis in mouse peritoneal macrophages. We describe steps for yeast staining, phagocytosis of stained yeast, hematoxylin staining of macrophages, and light microscopy imaging. We then detail procedures for phagocytic metric analysis, which are also applicable to any phagocytic cells. This protocol can also be used for time-lapse visualization of phagocytosis.
Insights
This study details a method for analyzing phagocytosis in mouse macrophages using a yeast assay. The protocol allows for direct visualization and quantification of phagocytic activity and can be adapted for various phagocytic cells.
Area of Science:
- Immunology
- Cell Biology
Background:
- Phagocytosis is a critical cellular process for innate immunity and host defense.
- Quantifying phagocytosis in immune cells like macrophages is essential for understanding immune responses.
Purpose of the Study:
- To present a detailed protocol for analyzing phagocytosis in mouse peritoneal macrophages.
- To provide a standardized method for quantifying the binding and internalization of foreign targets by phagocytes.
Main Methods:
- The protocol involves staining yeast cells, co-incubation with mouse peritoneal macrophages, hematoxylin staining of macrophages, and light microscopy.
- Detailed procedures for phagocytic metric analysis are described.
Main Results:
- The presented protocol enables direct visualization and quantification of phagocytosis.
- The method is adaptable for analyzing phagocytosis in various phagocytic cells and for time-lapse imaging.
Conclusions:
- This standardized yeast phagocytosis assay protocol offers a robust method for studying phagocytic function in macrophages.
- The protocol's adaptability makes it valuable for diverse research applications in immunology and cell biology.
