Macrophage Phenotyping
Macrophage Phenotyping - Related Videos
07:14
Phenotypic Characterization of Macrophages from Rat Kidney by Flow Cytometry
0 Views •
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.
08:50
Depletion and Reconstitution of Macrophages in Mice
0 Views •
Cited by 118 •
2012
Macrophages play a central role in homeostasis and pathology in many tissues. The protocol presented here describes methods for depleting macrophages in vivo, deriving polarized macrophages from bone marrow aspirates, and adoptively transferring macrophages into mice. These techniques allow determination of the role that polarized macrophages play in health and disease.
03:05
In Vitro Culture and Differentiation of Primary Monocytes into Macrophages
0 Views •
2025
This video demonstrates the priming of primary monocytes into macrophages. Primary human monocytes can be isolated and differentiated to an M1-like pro-inflammatory phenotype using the granulocyte-macrophage colony-stimulating factor (GM-CSF) or to an M2-like anti-inflammatory phenotype using the macrophage colony-stimulating factor (M-CSF).
10:07
Investigation of Macrophage Polarization Using Bone Marrow Derived Macrophages
0 Views •
Cited by 326 •
2013
The article describes a readily easy adaptive in vitro model to investigate macrophage polarization. In the presence of GM-CSF/M-CSF, hematopoietic stem/progenitor cells from the bone marrow are directed into monocytic differentiation, followed by M1 or M2 stimulation. The activation status can be tracked by changes in cell surface antigens, gene expression and cell signaling pathways.
07:46
Isolation, Characterization, and Purification of Macrophages from Tissues Affected by Obesity-related Inflammation
0 Views •
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.
FAQs
Each measurement captures a different aspect of macrophage state. Surface markers help identify cellular populations, intracellular proteins indicate internal activation features, gene-expression analysis reveals broader regulatory changes, and functional properties show what cells do. Combining these readouts helps researchers connect molecular changes with antimicrobial, inflammatory, or regulatory behavior rather than interpreting activation from one measurement alone.
Microbial products and cytokines act as signals that can shift macrophage activation, polarization, metabolism, and effector functions. Phenotyping tracks these coordinated changes to show how macrophages respond to infection-related stimuli. The resulting profiles can help explain whether cellular responses favor inflammation, antimicrobial activity, immune regulation, or other infection-associated outcomes.
Researchers compare population-associated surface markers, intracellular proteins, gene-expression patterns, and functional properties to identify differences between tissue-resident and recruited macrophages. This distinction adds cellular context to infection and disease studies because the two populations may reflect different origins or response states. Their relative characteristics can then be related to local immune regulation and infection outcomes.
Flow cytometry, immunostaining, and transcriptomic analysis provide complementary routes for characterization. Flow cytometry can measure multiple cellular features across populations, immunostaining can identify marker patterns in cells or tissues, and transcriptomics can examine gene-expression changes. Researchers can select one method or combine them when they need both population-level identification and deeper molecular or functional interpretation.
A study generally compares macrophage populations under defined biological conditions, measures selected surface or intracellular markers, and may add gene-expression or functional analyses. Researchers can examine baseline populations and then assess changes after exposure to microbial products, cytokines, infection, or disease-associated conditions. Integrating the results helps connect cellular state with inflammatory, antimicrobial, or regulatory responses.
The approach is useful when researchers need to determine how macrophage states relate to infection or immune regulation. It supports analysis of host-pathogen interactions, inflammatory and antimicrobial responses, vaccine responses, and therapeutic development. By revealing changes in activation, polarization, metabolism, and effector functions, phenotyping can help evaluate how interventions influence macrophage behavior and infection-associated outcomes.