Macrophage Characterization
Macrophage Characterization - Related Videos
07:46
Isolation, Characterization, and Purification of Macrophages from Tissues Affected by Obesity-related Inflammation
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Cited by 15 •
2017
This protocol allows a researcher to isolate and characterize tissue-resident macrophages in various hallmark inflamed tissues extracted from diet-induced models of metabolic disorders.
09:25
Isolation and Characterization of Dendritic Cells and Macrophages from the Mouse Intestine
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Cited by 68 •
2012
Here, we detail a methodology for the rapid isolation of mouse intestinal dendritic cells (DCs) and macrophages. Phenotypic characterization of intestinal DCs and macrophages is performed using multi-color flow cytometric analysis while magnetic bead enrichment followed by cell sorting is used to yield highly pure populations for functional studies.
07:14
Phenotypic Characterization of Macrophages from Rat Kidney by Flow Cytometry
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Cited by 37 •
2016
This manuscript describes a detailed protocol for phenotypic and quantitative analysis of resident macrophages from rat kidneys by flow cytometry. The resulting stained cells can be also used for other applications, including cell sorting, gene expression analysis or functional studies, thus increasing the information obtained in the experimental model.
04:49
Characterization of Macrophage Extracellular Traps in Mouse Lung Tissue Samples
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2025
In this video, we describe a protocol for the immunostaining and confocal microscopy-based visualization of macrophage extracellular traps (METs) in murine lung tissue. Tissue-resident macrophages are characterized by the expression of the macrophage-specific F4/80 surface glycoprotein marker, while METs are visualized by labeling the MET markers matrix metalloproteinase 9, citrullinated histone H3, and extracellular chromatin.
07:45
Metabolic Characterization of Polarized M1 and M2 Bone Marrow-derived Macrophages Using Real-time Extracellular Flux Analysis
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Cited by 275 •
2015
Metabolic reprogramming is a characteristic and prerequisite for M1 and M2 macrophage polarization. This manuscript describes an assay for the measurement of fundamental parameters of glycolysis and mitochondrial function in mouse bone marrow-derived macrophages. This tool can be applied to investigate how particular factors affect the macrophage’s metabolism and phenotype.
FAQs
No single measurement fully captures a macrophage population’s identity or activity. Surface markers can indicate phenotype, while morphology, gene or protein expression, cytokine production, phagocytosis, and antigen presentation provide complementary evidence about function. Combining these readouts helps distinguish related populations and prevents a temporary response to stimulation from being mistaken for a stable cellular state.
These features describe different aspects of macrophage biology and should not be treated as interchangeable. Origin provides context for where a population came from, phenotype reflects its identifiable characteristics, and functional state shows how it behaves under particular conditions. Assessing all three helps researchers interpret whether observed differences represent distinct populations, activation, or responses to environmental stimuli.
Researchers compare identity-associated measurements with responses observed after stimulation. Changes in cytokine production, phagocytosis, or antigen presentation may reflect a temporary functional response, whereas consistent differences across phenotype and gene or protein expression can support a more persistent change. This distinction matters when interpreting activation, disease progression, or treatment-associated effects in macrophage populations.
Phagocytosis, cytokine production, and antigen presentation provide complementary functional information. Phagocytosis reflects uptake activity, cytokines indicate inflammatory signaling, and antigen presentation relates to communication with adaptive immune responses. Examining these functions alongside phenotype and expression measurements helps connect macrophage behavior with pathogen detection, inflammation, tissue repair, and immune-mediated tissue damage.
A useful workflow begins by defining the population’s phenotype and origin, then combines surface-marker assessment with morphology and gene or protein expression. Functional assays can measure cytokine production, phagocytosis, and antigen presentation before and after relevant stimuli. Interpreting these results together provides a more informative profile than relying on any single assay or observation.
It is useful when researchers need to examine how macrophages detect pathogens, regulate inflammation, or contribute to tissue repair. Comparing macrophage characteristics and functions during infection can clarify host-pathogen interactions and disease progression. The same measurements may also reveal whether macrophage activity is associated with protective responses, immune-mediated tissue damage, or changes following treatment.
The approach can identify differences in macrophage populations, describe their activation-associated functions, and connect those findings with disease-related processes. In therapeutic studies, coordinated changes in phenotype, expression, cytokine production, phagocytosis, or antigen presentation can help assess responses. Integrating these outcomes supports interpretation of whether an intervention alters function, identity, or both.