Monocyte Recruitment
Monocyte Recruitment - Related Videos
09:16
Simultaneous Study of the Recruitment of Monocyte Subpopulations Under Flow In Vitro
0 Views •
Cited by 6 •
2018
Here, we present an integrated protocol that measures monocyte subpopulation trafficking under flow in vitro by use of specific surface markers and confocal fluorescence microscopy. This protocol can be used to explore sequential recruitment steps as well as to profile other leukocyte subtypes using other specific surface markers.
10:59
Conditional Knockdown of Gene Expression in Cancer Cell Lines to Study the Recruitment of Monocytes/Macrophages to the Tumor Microenvironment
0 Views •
Cited by 6 •
2017
This protocol serves as a scheme for setting up a functional Tet-ON system in cancer cell lines and its subsequent use, in particular for studying the role of tumor cell-derived proteins in recruitment of monocytes/macrophages to the tumor microenvironment.
08:31
Characterization of Human Monocyte-derived Dendritic Cells by Imaging Flow Cytometry: A Comparison between Two Monocyte Isolation Protocols
0 Views •
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.
09:28
Imaging Neutrophils and Monocytes in Mesenteric Veins by Intravital Microscopy on Anaesthetized Mice in Real Time
0 Views •
Cited by 6 •
2015
We detail a protocol to monitor the behavior of neutrophils and monocytes in mesenteric veins under steady state and inflammatory conditions using intravital confocal microscopy on anaesthetized mice.
05:52
An In Vitro Flow Investigation of the Effect of Stromal Cells on Leukocyte Recruitment
0 Views •
2025
The video demonstrates a method for investigating the impact of stromal cells on leukocyte recruitment. In a parallel plate flow chamber model, pro-inflammatory cytokines induce the expression of adhesion receptors by endothelial cells, facilitating neutrophil recruitment and migration. The cross-talk between stromal cells and endothelial cells diminishes neutrophil recruitment to the endothelial cells.
FAQs
The process proceeds through linked stages rather than simple cell movement. Infection or tissue injury generates inflammatory signals that activate the vascular endothelium, the vessel lining. Monocytes then adhere through integrin-dependent interactions and follow chemotactic cues toward the affected tissue. This sequence helps concentrate innate immune cells where pathogen control, debris removal, and inflammatory coordination are needed.
Chemokines provide directional information that guides monocytes toward sites of infection or tissue injury. Their activity complements endothelial activation and integrin-mediated adhesion: activation prepares the vessel surface, adhesion helps retain circulating cells, and chemotaxis supports movement toward the inflammatory focus. Disrupting this coordination would alter where monocytes accumulate and how effectively they contribute to host defense.
These mechanisms solve different physical and biological problems. Endothelial activation changes the vessel interface in response to inflammation, while integrins enable monocytes to attach firmly to that surface. Adhesion allows cells to remain positioned at the relevant vascular site before moving across the vessel wall. Together, the steps connect circulating surveillance with focused tissue inflammation.
After entering tissue, monocytes may differentiate into macrophages or inflammatory dendritic cells, creating distinct opportunities for local immune activity. They can phagocytose pathogens and cellular debris, while also producing cytokines that shape surrounding responses. Consequently, recruitment affects more than cell numbers: it can influence pathogen clearance, inflammatory signaling, and the character of subsequent host defense.
Examining this process can clarify how protective immunity develops at inflamed sites and how innate cells reach tissues that require defense or repair-related activity. In infection research, it helps connect inflammatory signals with pathogen control. In injury settings, it provides a framework for understanding cellular responses to damaged tissue and the factors that organize local inflammation.
Monocyte recruitment links acute inflammatory signaling with outcomes that may become harmful when inflammation persists. Continued entry of these cells can shape local cytokine production, phagocytic activity, and differentiation into macrophages or inflammatory dendritic cells. Studying the pathway therefore helps researchers examine both beneficial host defense and inflammation-related tissue damage, while informing therapies designed to modulate leukocyte trafficking.