Cytokine Maturation
Cytokine Maturation - Related Videos
12:58
Expression of Exogenous Cytokine in Patient-derived Xenografts via Injection with a Cytokine-transduced Stromal Cell Line
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Cited by 2 •
2017
Described here is a method for producing exogenous cytokine in patient-derived xenograft (PDX) mice via weekly intraperitoneal injection of a cytokine-transduced stromal cell line. This method broadens the utility of PDX and provides the option for transient or sustained exogenous cytokine delivery in a multitude of PDX models.
03:47
Generation of Immature, Mature, and Tolerogenic Dendritic Cells from Monocytes
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2025
This video demonstrates the generation of immature, mature, and tolerogenic dendritic cells, or DCs, from human monocytes. The incubation of monocytes with growth factors and cytokines leads to the production of immature DCs. In response to immune regulatory molecules, immature DCs differentiate into tolerogenic and mature DCs.
02:57
Assessing Antiviral Cytokine Production in Response to Viral Infection
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2026
Source: Zhang, J., et al. Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production. J. Vis. Exp. (2014)This video demonstrates the process of infecting murine fibroblast cells with herpesvirus and monitoring the resulting antiviral cytokine release and gene expression. It outlines key steps, including viral infection, media collection for cytokine quantification, and cell harvesting for gene expression analysis.
01:28
Maturation of Endosomes
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2023
The early endosome containing internalized molecules matures through transformations in its location, morphology, intraluminal pH, and membrane protein composition. Together, these changes result in a more acidic late endosome that contains multiple intraluminal vesicles; therefore, the late endosome is also called a multivesicular body (MVB). Changes in location The maturing endosome moves along microtubules from the periphery of the cell towards the perinuclear region. This movement of the...
08:32
Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
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Cited by 2 •
2014
We describe a protocol to measure the antiviral cytokine production in mice infected with a model herpesvirus, murine gamma herpesvirus 68 (γHV68) that is closely-related to human Kaposi’s sarcoma-associated herpesvirus (KSHV) and Epstein-Barr virus (EBV). Utilizing genetically modified mouse strains and mouse embryonic fibroblasts (MEFs), we assessed the antiviral cytokine production both in vivo and ex vivo. “Reconstituting” the expression of innate immune components in knockout embryonic...
FAQs
Keeping potent cytokine signals in precursor form limits inflammatory activity before pathogen-associated or danger-associated cues appear. Once those cues activate the relevant pathway, processing can release signaling-competent molecules. This arrangement creates a controllable threshold for innate immune activation, helping explain how responses are initiated without remaining continuously active.
Inflammasome activation recruits and activates caspase-1, an enzyme that cleaves precursor cytokines at the processing stage. For pro-IL-1β and pro-IL-18, this cleavage produces mature forms that can be secreted and coordinate immune or inflammatory responses. Caspase-1 therefore connects danger sensing with the release of specific signaling molecules.
Comparing precursor and mature forms distinguishes cytokine production from cytokine activation. The presence of a precursor indicates that an inactive form has been generated, whereas conversion to a mature form indicates that appropriate processing has occurred. In infection studies, this distinction helps localize regulation to synthesis, maturation, or secretion.
Cytokines do not all mature through the same route. Although inflammasome-associated caspase-1 processing applies to precursor forms such as pro-IL-1β and pro-IL-18, other cytokines can require different proteolytic or cellular processing steps. Recognizing this variation prevents researchers from treating one maturation pathway as a universal model for immune signaling.
A conceptual workflow begins by identifying the infection- or danger-associated cue, then asking whether inflammasome activation and caspase-1 activity accompany conversion of precursor cytokines. The analysis should distinguish precursor forms, mature forms, and secretion, because these stages represent different regulatory points. Linking each stage to inflammatory output clarifies where pathway control occurs.
Studies of cytokine maturation are relevant wherever controlled inflammatory signaling matters, including infection, autoinflammatory disease, vaccine responses, and therapeutic research. In each setting, the central question is how precursor processing changes the availability of active cytokines. That perspective can help investigators interpret immune-response regulation and identify maturation or related inflammatory pathways as potential intervention points.