T-cell Mitogen
T-cell Mitogen - Related Videos
02:38
Mitogens and the Cell Cycle
0 Views •
2023
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
02:38
Mitogens and the Cell Cycle
0 Views •
2021
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
09:32
Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
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Cited by 7 •
2017
This protocol describes an optogenetic strategy to modulate mitogen-activated protein kinase (MAPK) activity during cell differentiation and Xenopus embryonic development. This method allows for the reversible activation of the MAPK signaling pathway in mammalian cell culture and in multicellular live organisms, like Xenopus embryos, with high spatial and temporal resolution.
08:13
Rapid Quantification of Mitogen-induced Blastogenesis in T Lymphocytes for Identifying Immunomodulatory Drugs
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Cited by 9 •
2016
T-lymphocyte mitogenesis is accompanied by blastogenic transformation, whereupon the cell volume enlarges before cell division. Here, we describe a method to quantify blastogenesis in T lymphocytes using an automated cell counter with the capability of measuring cell diameters.
09:31
Sustained Administration of β-cell Mitogens to Intact Mouse Islets Ex Vivo Using Biodegradable Poly(lactic-co-glycolic acid) Microspheres
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Cited by 2 •
2016
Here, we present methodology to generate and administer compound of interest-loaded poly(lactic-co-glycolic acid) (PLGA) microspheres to intact mouse islets in culture with subsequent immunofluorescence analysis of β-cell proliferation. This method is suitable for determining the efficacy of candidate β-cell mitogens.
FAQs
Plant lectins such as phytohemagglutinin and concanavalin A cross-link receptors associated with the T-cell receptor complex. This clustering initiates calcium-dependent signaling pathways, which promote gene expression and cytokine production. The resulting activation can drive many T cells into the cell cycle even when they are not responding to one particular peptide antigen.
Receptor cross-linking brings signaling components into an arrangement that can transmit activation signals through the T-cell receptor-associated machinery. Calcium-dependent pathways then connect surface stimulation with intracellular gene regulation and cytokine release. This mechanism makes mitogens useful for examining general T-lymphocyte signaling rather than responses restricted to a defined antigen.
Polyclonal activation stimulates a broad population of T cells, whereas antigen-specific stimulation depends on recognition of a particular peptide antigen. T-cell mitogens are therefore useful when the experimental goal is to test general lymphocyte responsiveness, signaling capacity, or cytokine production. They do not by themselves identify which cells recognize a particular antigen.
Several measurable responses can follow mitogen exposure, including entry into the cell cycle, proliferation, cytokine release, and cell viability. Together, these readouts show whether lymphocytes respond to stimulation and how effectively they maintain function. Comparing such outcomes can help characterize signaling behavior, immune-cell performance, or cellular immune deficiencies.
A typical assay exposes T lymphocytes to a mitogenic stimulus and then evaluates a selected response, such as proliferation, viability, cytokine release, or broader immune-cell function. The stimulus provides a standardized activation condition, while the measured endpoint supplies evidence about lymphocyte responsiveness. The exact readout depends on the biological question being tested.
A mitogen can serve as a positive control because it supplies a known stimulus capable of activating T lymphocytes and inducing measurable responses. If cells fail to respond under this condition, the result may indicate impaired lymphocyte function or a problem with the assay system. This reference helps interpret experiments involving other treatments or stimuli.
Phytohemagglutinin and concanavalin A are examples of plant lectins used as T-cell mitogens. Their ability to cross-link receptors associated with the T-cell receptor complex makes them useful for inducing broad lymphocyte activation. In biology research, these agents support studies of proliferation, signaling, cytokine production, and cellular immune deficiencies.