Interleukin-2 Secretion
Interleukin-2 Secretion - Related Videos
03:33
Evaluating the Effects of Fecal Microbiota Transplantation in an Interleukin-10 Deficient Mouse
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2025
This video demonstrates a procedure of fecal microbiota transplantation in an interleukin-10 deficient mouse with colon inflammation. Colonized fecal microbes in the gut release secondary metabolites, eliciting anti-inflammatory cytokine release and reducing colon inflammation.
07:09
A Convenient and General Expression Platform for the Production of Secreted Proteins from Human Cells
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Cited by 17 •
2012
In the post-human genomics era, the availability of recombinant proteins in native conformations is crucial to structural, functional and therapeutic research and development. Here, we describe a test- and large-scale protein expression system in human embryonic kidney 293T cells that can be used to produce a variety of recombinant proteins.
04:20
Functional Assessment of Antibody-Secreting B Cells Using ELISpot Assay
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2025
This video demonstrates the use of the ELISpot assay to assess the function of antibody-secreting B cells, ASCs. The antibodies secreted by the ASCs interact with the membrane-bound polyclonal antibody fragments, which are detected by the enzyme-conjugated IgG or IgM antibodies. The colored spot produced in each well indicates the presence of the specific antibody's isotype, which correlates with the B cells' secretory activity.
08:43
Microinjection of Interleukin-6 into the Bloodstream of TSC Zebrafish Larvae to Study Neuropsychiatric Disorder-Like Behaviors
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2026
To model how inflammatory signals influence neurodevelopment in genetically susceptible organisms, we present a protocol for microinjecting IL-6 into the duct of Cuvier (common cardinal vein) of zebrafish larvae, enabling controlled induction of inflammation and assessment of its developmental impact in the context of tuberous sclerosis complex (TSC).
03:37
Quantifying Polarity and Dynamics of a Secretion System Component in Legionella pneumophila
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2025
Source: Chetrit, D., et al. Applying Live Cell Imaging and Cryo-Electron Tomography to Resolve Spatiotemporal Features of the Legionella pneumophila Dot/Icm Secretion System. J. Vis. Exp. (2020)This video demonstrates the use of live-cell fluorescence imaging to quantify the polarity and dynamics of secretion system components in Legionella pneumophila, enabling analysis of spatial recruitment and cytosolic redistribution critical for understanding bacterial...
FAQs
Two linked signaling requirements shape this response. T-cell receptor recognition of antigen initiates intracellular signaling, while appropriate costimulatory signals support the activation needed for IL2 gene transcription. The cell then synthesizes and releases IL-2. This coordination helps restrict strong cytokine production to T cells receiving the signals associated with an appropriate adaptive immune response.
Released IL-2 can act autocrinely on the producing T cell or paracrinely on nearby lymphocytes. Autocrine signaling reinforces the activity of the responding cell, whereas paracrine signaling extends effects through neighboring immune cells. Together, these pathways connect a local antigen-triggered event with broader lymphocyte proliferation, survival, and activation during an adaptive immune response.
IL-2 signaling contributes not only to expansion of activated T cells but also to the development and function of regulatory T cells. It therefore participates in both immune-cell activation and regulation. Considering these linked outcomes is important when interpreting IL-2 responses, because secretion can reflect effects on multiple immune populations rather than proliferation of a single cell type alone.
The strongest directly supported influences are antigen recognition through the T-cell receptor and the presence of appropriate costimulatory signals. These inputs activate intracellular pathways that promote IL2 gene transcription, so changing either the recognition event or the supporting signal can alter cytokine production. IL-2 secretion should therefore be interpreted in relation to the activation conditions that generated it.
IL-2 secretion provides an indicator of T-cell activation linked to antigen recognition and costimulation. Its measurement can help characterize whether cells mounted a cytokine-associated response and can relate that response to downstream lymphocyte proliferation, survival, or activation. The result is therefore useful for assessing cellular immunity, while remaining connected to the specific stimulation conditions used.
In vaccine research, IL-2 measurements can help assess cellular immune activity generated by vaccination. In immunotherapy studies, they can indicate how treatment affects immune-cell activation and expansion. The same readout can also support evaluation of immune-modulating treatments, providing a shared biological measure across interventions designed to strengthen, redirect, or regulate adaptive immune responses.
Its importance comes from linking antigen-specific T-cell recognition to communication among immune cells. Once released, IL-2 can influence the producing cell and nearby lymphocytes, supporting coordinated changes in proliferation, survival, and activation. This makes secretion relevant to adaptive immunity as a system-level process and provides a biological context for studying immune responses, regulation, and treatment effects.