Macrophages Microglia
Macrophages Microglia - Related Videos
09:23
Coculture Assays to Study Macrophage and Microglia Stimulation of Glioblastoma Invasion
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Cited by 19 •
2016
Understanding the malignant behavior of cancer requires creating accurate models of how tumor cells interact with components of the tumor microenvironment, such as macrophages. Here we describe two methods to study glioblastoma cell interaction with tumor associated macrophages and microglia where the effect on glioblastoma invasion is assessed.
10:43
Analysis of Microglia and Monocyte-derived Macrophages from the Central Nervous System by Flow Cytometry
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Cited by 122 •
2017
This protocol provides an analysis of the macrophage subpopulations in the adult mouse central nervous system by flow cytometry and is helpful for the study of multiple markers expressed by these cells.
13:28
Three-dimensional Confocal Analysis of Microglia/macrophage Markers of Polarization in Experimental Brain Injury
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Cited by 51 •
2013
A way to gain new insights into the complexity of the brain inflammatory response is presented. We describe immunofluorescence-based protocols followed by three-dimensional confocal analysis to investigate the pattern of co-expression of microglia/macrophage phenotype markers in a mouse model of focal ischemia.
05:11
Brain Cell Isolation from Zebrafish Larvae: A Technique to Obtain Intact Neurons, Macrophages, and Microglia from Zebrafish Brain Tissue
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2023
This video describes a protocol to isolate neurons, macrophages, and microglia from larval zebrafish brains by mechanically disrupting the brain tissue. The purified cell populations can further be used for genomic analysis.
13:36
Detection of MicroRNAs in Microglia by Real-time PCR in Normal CNS and During Neuroinflammation
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Cited by 37 •
2012
Microglia are resident macrophages that provide the first line of defense and immune surveillance of the central nervous system. MicroRNAs are regulatory molecules that play an important role in many physiological processes including activation and differentiation of macrophages. In this article, we describe the method for measurement of microRNAs in microglia.
FAQs
Pattern-recognition receptors detect pathogen-associated molecular patterns from microbes and damage-associated molecular patterns released during tissue injury. This recognition helps these cells distinguish an infectious challenge from tissue damage and initiates coordinated responses, including phagocytosis and the release of cytokines and chemokines. The resulting signals influence how strongly inflammation develops and how surrounding immune cells respond.
The distinction connects the initiating stimulus with different immunological contexts. Microbial signals indicate a pathogen-associated threat, whereas damage-associated signals can arise from injured tissue even without a microbe. In both cases, macrophages and microglia can activate inflammatory communication, but identifying the signal type helps researchers interpret whether the response relates primarily to infection, tissue injury, or harmful ongoing inflammation.
Phagocytosis removes microbes and cellular debris, while cytokines and chemokines communicate the local state to other cells. These activities are complementary rather than separate: engulfment contributes to containment and cleanup, and released mediators shape the surrounding inflammatory response. Studying both processes helps explain why macrophage or microglial activity may support tissue defense and repair or contribute to damaging inflammation.
Microglia perform macrophage-like immune functions within the central nervous system, so their activation must be considered in relation to neuroinflammation. Signals produced during infection or damage can affect the neural tissue environment, making microglial responses especially relevant to understanding inflammatory effects in the brain and central nervous system. This context distinguishes their role from macrophage activity in other tissues.
A useful investigation follows several linked outcomes: recognition of pathogen-associated or damage-associated signals, engulfment of microbes or debris, release of cytokines and chemokines, and possible antigen presentation to adaptive immune cells. Comparing these responses clarifies how the cells contain pathogens and shape inflammation. The same framework can also reveal whether activation is associated with tissue repair or harmful chronic inflammation.
These cells connect early innate defense with broader immune coordination. Their ability to contain pathogens, remove debris, release inflammatory mediators, and present antigens makes them relevant to infectious disease studies and chronic inflammation research. Because excessive or persistent activation can be harmful, defining their responses also supports therapeutic design aimed at influencing inflammation and neuroinflammatory processes.