Inflammasome Formation
Inflammasome Formation - Related Videos
03:06
An In Vitro Technique to Study Inflammasome Complex Formation in Macrophages
0 Views •
2025
This video demonstrates a technique to study NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome formation in primary macrophages via immunofluorescence. The macrophages are first primed with bacterial lipopolysaccharide (LPS) to upregulate NLRP3 protein expression. Exposing the macrophages to nigericin—a potassium ionophore—leads to the activation of NLRP3 and the formation of inflammasomes, which are visualized via immunofluorescence.
03:44
Detection of Inflammasome Activation via Fluorescence Microscopy
0 Views •
2025
This video demonstrates a method to detect NLRP3 inflammasome activation in macrophages using fluorescent reporter probes. The cells are treated with potassium ionophores and glycine to induce inflammasome assembly and caspase-1 activation. Fluorescent reporter probes visualize activated caspase-1, and cells are stained with a fluorescent dye for nuclei visualization.
09:04
Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells
0 Views •
Cited by 7 •
2014
Dendritic cells (DCs) secrete IL-1β in response to TLR8 recognition of synthetic purine, R848, followed by NLRP3 inflammasome activation with nigericin, therefore, IL-1β can be used to measure NLRP3 inflammasome activity. Intracellular cytokine staining, immunoblotting, and ELISA are used to accurately measure NLRP3 inflammasome priming and activation via IL-1β expression.
02:16
Solution Formation
0 Views •
2020
There is no one solvent that can dissolve every type of solute. Some substances that readily dissolve in a certain solvent might be insoluble in a different solvent. A simple way to predict which substances dissolve in which solvent is the phrase "like dissolves like". This means that polar substances, such as salt and sugar, dissolve in a polar substance like water. In contrast, non-polar substances are more soluble in non-polar solvents such as carbon tetrachloride. This selective solubility...
02:37
Standard Enthalpy of Formation
0 Views •
2020
Enthalpy changes are typically tabulated for reactions in which both the reactants and products are at the same conditions. A standard state is a commonly accepted set of conditions used as a reference point for the determination of properties under other different conditions. For chemists, the IUPAC standard state refers to materials under a pressure of 1 bar and solutions at 1 M and does not specify a temperature. Many thermochemical tables list values with a standard state of 1 atm. Because...
FAQs
A priming step prepares the inflammatory pathway to respond to danger signals. After priming, cellular stress or microbial invasion can activate pattern-recognition receptors such as NLRP3, enabling assembly of the downstream signaling platform. This staged response links an initial readiness signal with a subsequent danger signal and helps explain how inflammatory immunity is initiated during infection or cellular stress.
NLRP3 responds to danger-associated changes and provides the initiating receptor component. It recruits the adaptor ASC, which then supports clustering of procaspase-1. This organization brings procaspase-1 molecules into an active signaling platform, allowing caspase-1 activity to connect receptor detection with cytokine maturation and inflammatory cell-death mechanisms.
Activated caspase-1 produces two major downstream outcomes. It processes pro-IL-1β and pro-IL-18 into mature inflammatory cytokines, while also cleaving gasdermin D. The latter promotes pyroptotic cell death and release of inflammatory mediators. Considering these outcomes separately helps researchers distinguish cytokine-driven signaling from the cellular damage and mediator release associated with pyroptosis.
Analysis should follow the pathway from danger-signal or microbial-invasion exposure, through any priming step, to receptor activation and recruitment of ASC. The next stages are procaspase-1 clustering, caspase-1 activation, processing of IL-1β and IL-18 precursors, and gasdermin D cleavage. This sequence provides a framework for connecting an initiating stimulus with inflammatory outcomes.
In infection research, the pathway helps explain how host cells detect microbial invasion and initiate inflammatory immunity. Investigators can use it to relate receptor activation to cytokine maturation, pyroptotic cell death, and mediator release. These connections provide a framework for studying how inflammatory responses contribute to host defense while also potentially producing immunopathology.
Inflammasome formation is relevant to autoinflammatory disorders because its downstream products include mature IL-1β, mature IL-18, pyroptotic cell death, and released inflammatory mediators. Research can therefore examine how pathway activation relates to inflammatory disease mechanisms and use that understanding to investigate anti-inflammatory therapies aimed at limiting harmful immune consequences.