Cardiac Macrophage Isolation
Cardiac Macrophage Isolation - Related Videos
07:26
Isolation of Functional Cardiac Immune Cells
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Cited by 9 •
2011
This method for isolating functional immune cells from the heart provides an alternative to the conventional methods of collagenase digestion, which causes unwanted immune cell activation, resulting in a decreased responsiveness of these cells. Our method of isolation yields functional cardiac immune cells by avoiding problems associated with enzymatic digestion.
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.
08:43
Isolation and Culture of Resident Cardiac Macrophages from the Murine Sinoatrial and Atrioventricular Node
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Cited by 4 •
2021
The protocol presented here provides a step-by-step approach for the isolation of cardiac resident macrophages from the sinoatrial node (SAN) and atrioventricular node (AVN) region of mouse hearts.
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.
03:37
Isolation of Phagosomes Containing Magnetic Bead-Tagged Bacteria from Infected Macrophages
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2026
Source: Gutiérrez, S., et al., Isolation of Salmonella typhimurium-containing Phagosomes from Macrophages. J. Vis. Exp. (2017)This video demonstrates the magnetic isolation of phagosomes containing biotin–streptavidin bead–coated bacteria from infected macrophages. The protocol includes buffer treatments, cell disruption, magnetic separation, and washing to yield purified phagosomes for analysis.
FAQs
Enzymatic dissociation breaks heart tissue into a cell suspension, making individual macrophages accessible for later processing. This step enables filtration and centrifugation to separate cellular material and prepares the sample for selection based on macrophage surface markers or physical properties. Effective tissue disruption is therefore essential for obtaining cells suitable for downstream characterization and functional investigation.
Surface-marker selection distinguishes macrophages through features displayed on their cell membranes, whereas physical-property selection separates cells according to measurable characteristics of the cell population. These approaches provide different ways to enrich the macrophage fraction after tissue processing. The selected strategy determines how confidently the resulting population can be examined in studies of cardiac inflammation, repair, or remodeling.
Flow cytometry, microscopy, and molecular assays provide complementary information about isolated cardiac macrophages. Flow cytometry can assess cellular marker patterns, microscopy can examine cell appearance and relationships, and molecular assays can evaluate signaling-related changes. Using these readouts helps connect the isolated population with inflammatory activity, tissue repair, and interactions involving cardiomyocytes or other immune cells.
Separating macrophages from heart tissue allows investigators to examine their contributions without relying only on measurements from the whole tissue. The isolated cells can be assessed for inflammatory signaling, repair-related behavior, and interactions with cardiomyocytes and other immune cells. This cell-focused perspective helps clarify how immune activity may influence myocardial injury, cardiac remodeling, and fibrosis.
The workflow begins with enzymatic dissociation of heart tissue to create a cell suspension. The suspension is then filtered and centrifuged before macrophages are selected using surface markers or physical properties. After isolation, researchers characterize the cells with flow cytometry, microscopy, or molecular assays. Each stage prepares the sample for a more focused assessment of macrophage biology.
The most suitable analysis depends on the information sought from the isolated cells. Flow cytometry is appropriate for examining macrophage-associated surface-marker patterns, microscopy supports cellular and interaction-focused observations, and molecular assays assess signaling-related features. Applying these methods after isolation can provide complementary evidence rather than relying on a single type of cellular measurement.
Cardiac macrophage isolation supports research into myocardial injury, cardiac remodeling, and fibrosis. It can also help evaluate inflammatory signaling, tissue-repair processes, and communication with cardiomyocytes or other immune cells. These applications make the technique relevant to studies seeking to understand disease-associated immune responses and to explore potential immune-targeted therapies in medicine.