Monocyte Isolation
Monocyte Isolation - Related Videos
04:27
Isolation of Monocytes from Whole Blood by Immunomagnetic Negative Selection
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2025
In this video, we demonstrate the isolation of monocytes from whole human blood by immunomagnetic negative separation. The isolated monocytes can be used for further downstream analysis.
08:31
Characterization of Human Monocyte-derived Dendritic Cells by Imaging Flow Cytometry: A Comparison between Two Monocyte Isolation Protocols
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Cited by 19 •
2016
This study compares two different methods of human monocyte isolation for obtaining in vitro dendritic cells (DCs). Monocytes are selected by adherence or negatively enriched by magnetic separation. Monocyte yield and viability along with MDDC viability, proliferation and CD11c/CD14 surface marker expression will be compared between both methods.
09:21
Isolation and Intravenous Injection of Murine Bone Marrow Derived Monocytes
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Cited by 31 •
2014
Here we present a protocol that generates large amounts of murine monocytes from heterogeneous bone marrow for translational applications. In comparison to others, this new method helps reduce the number of sacrificed animals and lowers costs by avoiding expensive methods such as high gradient magnetic cell separation (MACS).
09:32
Isolation of Human Monocytes by Double Gradient Centrifugation and Their Differentiation to Macrophages in Teflon-coated Cell Culture Bags
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Cited by 98 •
2014
We present a simple and efficient protocol for the generation of human macrophages. Buffy coats are processed by double density gradient centrifugation and isolated monocytes are then differentiated to macrophages in Teflon-coated cell culture bags. This maximizes macrophage yields and facilitates cell harvesting for subsequent experiments.
03:05
In Vitro Culture and Differentiation of Primary Monocytes into Macrophages
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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).
FAQs
Density-gradient centrifugation serves as a staged preparation rather than the final monocyte selection. It recovers the peripheral blood mononuclear cell fraction from whole blood, creating a starting population for subsequent enrichment. This sequence narrows the cellular context before functional studies, helping investigators focus measurements on monocyte-driven innate immune responses.
Plastic adherence and antibody-based magnetic separation enrich monocytes through different principles. Adherence uses the cells’ tendency to attach to plastic, whereas magnetic separation uses antibodies directed at surface markers to select the desired population. The choice therefore determines whether enrichment relies on a physical behavior or marker-based recognition before downstream analysis.
Differentiating isolated monocytes into macrophages or dendritic cells extends the experimental system beyond the starting cell population. These derived cells allow researchers to examine innate immune function in additional cellular forms and compare responses such as phagocytosis, cytokine production, pathogen responses, and interactions with lymphocytes. This is useful when infection or inflammatory studies require more than one immune-cell context.
A typical workflow begins with whole blood, uses density-gradient centrifugation to recover peripheral blood mononuclear cells, and then applies either plastic adherence or antibody-based magnetic separation for monocyte enrichment. The resulting cells can be taken directly into functional analyses or differentiated into macrophages or dendritic cells, depending on the research question.
Within infection research, isolated monocytes provide a controlled cellular system for examining host-microbe interactions, pathogen responses, and inflammatory mechanisms. Researchers can measure cytokine production or phagocytosis and assess immune signaling without the same degree of interference from other blood cell populations. This supports focused evaluation of how innate immune cells respond to infection-related conditions.
These experiments can connect monocyte activity with broader immune behavior by combining measurements of phagocytosis, cytokine production, pathogen responses, and interactions with lymphocytes. The readouts help characterize innate immune function and inflammatory mechanisms, while differentiated macrophage or dendritic-cell models extend the analysis to cellular contexts relevant to host-microbe research and therapeutic-target investigation.