Macrophage Enrichment
Macrophage Enrichment - Related Videos
06:46
Culture of Macrophage Colony-stimulating Factor Differentiated Human Monocyte-derived Macrophages
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Cited by 58 •
2016
A protocol is presented for cell culture of macrophage colony-stimulating factor (M-CSF) differentiated human monocyte-derived macrophages. The protocol utilizes cryopreservation of monocytes coupled with their bulk differentiation into macrophages. Then harvested macrophages can then be seeded into culture wells at required cell densities for carrying out experiments.
10:07
Investigation of Macrophage Polarization Using Bone Marrow Derived Macrophages
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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.
01:34
Environmental Enrichment for Rodents
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Environmental enrichment involves objects and practices that encourage natural behaviors, improve psychological well-being, and promote better welfare in laboratory rodents. Environmental enrichment should be tailored to the...
08:50
Depletion and Reconstitution of Macrophages in Mice
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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.
07:42
An In vitro Model to Study Heterogeneity of Human Macrophage Differentiation and Polarization
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Cited by 14 •
2013
Monocyte-derived macrophages are important cells of the innate immune system. Here, we describe an easy to use in vitro model to generate these cells. Using gradient centrifugation, negative bead isolation and specific cell culture conditions, monocyte-derived macrophages can be generated for phenotypic and functional studies.
FAQs
Macrophage enrichment can exploit several distinguishing properties rather than a single universal feature. Surface markers support marker-based separation, while density, adherence, and functional behavior provide alternative selection bases. The best-supported principle depends on which property most clearly distinguishes macrophages from accompanying cells in the sample, helping researchers obtain a population suitable for focused biological analysis.
Magnetic-activated cell sorting and flow cytometry both can use cell-surface differences, but they provide different formats for separating cells. Density-gradient separation instead relies on differences in density, while selective culture uses differences in adherence or functional behavior. Comparing these options helps researchers match the enrichment strategy to the biological property available for distinguishing macrophages in a mixed sample.
Enrichment quality determines how specifically downstream measurements represent macrophages rather than other cells. Viability adds a separate constraint: a population may be compositionally useful yet unsuitable if cells do not remain viable for the intended assay. These factors are especially important for gene-expression analysis, sequencing, gene-editing experiments, and functional testing, where sample composition and cell state can affect interpretation.
An effective workflow must preserve two linked outcomes: a high proportion of macrophages and sufficient cell viability. Researchers select one of the supported separation approaches, obtain an enriched population, and consider whether its composition and condition fit the planned experiment. This planning matters because sequencing, gene editing, and functional assays depend on the quality of the starting population and can be affected by its viability.
By reducing the contribution of other cell types, enrichment allows genetic measurements to be interpreted with greater macrophage specificity. Researchers can examine macrophage gene expression, genetic variation, and differentiation, as well as responses to experimental stimuli. The same preparation can therefore provide a more focused starting population for sequencing or gene-editing studies, provided enrichment quality and viability remain adequate.
An enriched population can support analysis of macrophage gene expression and genetic variation in relation to differentiation or responses to experimental stimuli. It can also be used in functional assays, allowing genetic and cellular observations to be considered together. The value of these outcomes depends on whether the enrichment process leaves a sufficiently specific and viable population.