Lymphocyte Migration
Lymphocyte Migration - Related Videos
08:39
Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro
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Cited by 27 •
2010
T lymphocyte migration occurs during homing to lymphoid organs, exit from the vasculature, and entering into peripheral tissues. Here, we describe a protocol that can be used to analyze T lymphocyte migration in vitro.
10:25
Assessment of Lymphocyte Migration in an Ex Vivo Transmigration System
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Cited by 3 •
2019
In this protocol, lymphocytes are placed in the top chamber of a transmigration system, separated from the bottom chamber by a porous membrane. Chemokine is added to the bottom chamber, which induces active migration along a chemokine gradient. After 48 h, lymphocytes are counted in both chambers to quantitate transmigration.
04:45
An Immunological Technique to Monitor Adjuvant-Mediated Cytotoxic T Lymphocyte Generation
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2025
The video demonstrates an immunological method to monitor in vivo adjuvant-induced cytotoxic T lymphocyte or CTL production. A mouse is pre-injected with genetically engineered, proliferative dye-stained donor CD8+ T lymphocytes. Subcutaneous injection of ovalbumin with adjuvants generates cytotoxic CD8+ T lymphocytes that are identified post-harvesting through immunostaining and flow cytometry.
06:02
Isolation of Lymphocytes from a Mouse Peyer's Patch
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2025
In this video, we demonstrate the isolation of lymphocytes from a harvested mouse Peyer's patch. The isolated lymphocytes can be used for further analysis.
08:08
Isolation and Activation of Murine Lymphocytes
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Cited by 56 •
2016
Lymphocytes are the major players in adaptive immune responses. Here, we present a lymphocyte purification protocol to determine the physiological functions of the desired molecules in lymphocyte activation in vitro and in vivo. The described experimental procedures are suitable for comparing functional capacities between control and genetically modified lymphocytes.
FAQs
Chemokine gradients provide directional information rather than merely attracting lymphocytes. Differences in chemokine concentration guide cells through blood, lymph, and tissues toward locations where immune activity is needed. This spatial cue helps lymphocytes navigate to lymphoid organs or infected tissues, improving the likelihood that T and B cells encounter relevant antigen-presenting cells and participate in a coordinated response.
Vascular entry proceeds through distinct stages. Selectins on vascular endothelium initiate lymphocyte rolling, whereas integrins strengthen adhesion to the vessel wall. Firm attachment enables the cell to cross the endothelium by diapedesis. Keeping these steps separate is important because migration requires both initial contact with the vessel and stable adhesion before tissue entry.
Migration organizes immune surveillance by positioning lymphocytes where antigen recognition and effector activity can occur. In lymphoid organs, T and B cells can locate antigen-presenting cells; in infected tissues, their movement supports inflammation and pathogen elimination. The process therefore links physical cell distribution with functional immune coordination, rather than treating circulation as random movement.
An analysis of lymphocyte migration can follow the sequence from movement in blood or lymph to tissue localization. Key features to examine include chemokine guidance, endothelial rolling, integrin-dependent adhesion, and diapedesis across the vessel wall. Tracking these linked events helps connect a cell’s route with its eventual access to lymphoid organs or infected tissues.
Research on lymphocyte migration is relevant to inflammatory disease, immunodeficiency, cancer, and therapies that alter leukocyte trafficking. These applications arise because changing where lymphocytes travel can influence immune surveillance, inflammation, antigen-presenting-cell encounters, and pathogen elimination. Examining trafficking therefore provides a way to investigate both impaired immune organization and deliberate modification of immune-cell distribution.
In infection research, migration helps explain how immune responses become spatially organized. Lymphocytes must reach the tissues in which pathogens are present and the lymphoid organs where antigen-presenting interactions occur. Chemokine gradients, endothelial selectins, integrins, and diapedesis provide connected checkpoints that determine whether cells can move from circulation into the sites where defense is coordinated.