Lymphocyte Proliferation
Lymphocyte Proliferation - Related Videos
04:10
The Use of Carboxyfluorescein Diacetate Succinimidyl Ester (CFSE) to Monitor Lymphocyte Proliferation
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Cited by 214 •
2010
CFSE covalently labels long-lived intracellular molecules with the fluorescent dye, carboxyfluorescein. As such, when a CFSE-labeled cell divides, its progeny have half the amount of fluorescence, which can thereby be used to assess cell division. This article describes the procedures typically used for labeling mouse lymphocytes with CFSE.
05:16
A Vaccine-Pulsed Dendritic Cell-Based In Vitro Assay to Induce Lymphocyte Proliferation
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2025
This video demonstrates a monocyte-derived dendritic cell, MoDC-based assay to measure the immunogenicity of commercially available vaccines. MoDC assays investigate dendritic cell responses to antigens, pathogens, or treatments and can provide insights into immune responses, vaccine development, and immunotherapy research.
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.
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.
02:23
Abnormal Proliferation
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2021
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
FAQs
Antigen receptor binding provides the recognition signal that activates B or T lymphocytes and starts intracellular signaling pathways. This activation does not act alone: cytokines and costimulatory signals provide additional support for repeated division. Together, these inputs increase the number of antigen-specific cells, allowing the adaptive immune response to produce a larger targeted population.
Cytokines and costimulatory signals help determine whether antigen-recognizing lymphocytes become fully activated and continue dividing. Their contribution complements the receptor-based recognition of antigen, linking detection to sustained clonal expansion. This coordination matters because lymphocyte proliferation must generate enough responsive cells to support differentiation into effector and memory populations.
Expansion creates a larger pool of lymphocytes that can proceed toward different functional states. Some become effector cells involved in the immediate targeted immune response, while others become memory cells that persist as the basis for faster responses after later exposure. Thus, proliferation connects initial antigen recognition with both current defense and future immune readiness.
Researchers measure lymphocyte proliferation to determine whether immune cells have expanded after activation. The resulting measurement can serve as an indicator of immune activation rather than merely documenting antigen recognition itself. In experimental studies, this approach helps characterize responses associated with infection, immunodeficiency, vaccination, or treatments designed to alter adaptive immune activity.
During infection research, proliferation measurements can reveal whether lymphocytes respond to immune recognition in a targeted way. Comparing the observed expansion across experimental conditions may help investigators study adaptive immune activation and examine how infection affects that response. The information is relevant to understanding both pathogen-associated immune responses and impaired activity linked with immunodeficiency.
A vaccine study can use lymphocyte proliferation as an indicator of adaptive immune activation following immune recognition, helping evaluate the strength or presence of a response. The same measurement can support studies of therapies that modulate adaptive immunity by showing how treatment is associated with lymphocyte expansion. These applications connect cellular behavior with broader immune outcomes.