Tlr4 Myd88
Tlr4 Myd88 - Related Videos
10:39
In Vitro Analysis of Myd88-mediated Cellular Immune Response to West Nile Virus Mutant Strain Infection
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Cited by 1 •
2014
Two flow cytometry-based methods – an in vitro T cell priming assay and intracellular cytokine staining were utilized to measure antigen presenting capacity of dendritic cells and antigen-specific T cell responses to a West Nile virus mutant infection in mice.
02:34
Intraperitoneal Injection of Bacterial Lipopolysaccharide in Mice to Study Systemic Immune Responses
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2026
Source: Radulovic, K., et al. Injections of Lipopolysaccharide into Mice to Mimic Entrance of Microbial-derived Products After Intestinal Barrier Breach. J. Vis. Exp. (2018)This video demonstrates a step-by-step procedure for injecting lipopolysaccharide (LPS) into mice intraperitoneally to induce systemic inflammation.
04:08
An Assay for TLR-Dependent NF-кB/AP-1 Transcription Factor Signaling in Macrophages
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2025
This video demonstrates an assay to examine the toll-like receptor(TLR)-dependent activity of the transcription factors nuclear factor-kappa-B (NF-κB) and activator protein-1 (AP-1) in macrophages. The TLRs trigger a pro-inflammatory signaling cascade upon recognizing damage-associated molecular patterns (DAMPs), activating NF-κB and AP-1. The engineered reporter macrophages produce secreted embryonic alkaline phosphatase (SEAP) enzyme upon NF-κB and AP-1 activation, which is detected via a...
10:41
Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations
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Cited by 5 •
2017
Wild-type blocking PCR followed by direct sequencing offers a highly sensitive method of detection for low frequency somatic mutations in a variety of sample types.
05:11
Wild-Type Blocking PCR to Detect Low-Frequency Somatic Mutations
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2025
This video describes wild-type blocking polymerase chain reaction, or WTB-PCR, which detects somatic mutations. The PCR-based technique uses a locked nucleic acid, or LNA, an oligonucleotide that binds to its complementary wild-type allele and blocks its elongation. The blocking selectively allows the amplification of low-level mutant alleles over their wild-type variants in the sample.
FAQs
Activation at the cell surface initiates an ordered relay rather than a single inflammatory event. MyD88 recruits IRAK4 and IRAK1, which then engage TRAF6 and TAK1. These intermediates connect receptor stimulation to NF-κB and mitogen-activated protein kinase pathways. The sequence explains how a bacterial signal becomes coordinated activity that induces cytokines and other inflammatory mediators.
MyD88 acts as a critical adaptor between activated TLR4 and downstream signaling proteins. It recruits IRAK4 and IRAK1, allowing the signal to progress toward TRAF6 and TAK1. Without this relay position, receptor activation would not be linked in the described pathway to the NF-κB and mitogen-activated protein kinase responses that promote inflammatory mediator production.
The outcome depends on how inflammatory signaling is used in context. Cytokines and other mediators can coordinate host defense during infection, but the same inflammatory activity may contribute to tissue injury, sepsis, or chronic inflammatory disorders. This dual role makes the pathway biologically important and explains why research considers both protective signaling and excessive inflammation.
Its medical relevance extends from bacterial infection to immune-mediated disease. The pathway helps explain how infection-associated inflammation can become connected with sepsis and tissue injury, while persistent or dysregulated activity may contribute to chronic inflammatory disorders. Studying these settings can clarify how innate immune signaling influences disease processes beyond the initial microbial encounter.
Mapping the signaling sequence provides a mechanistic framework for investigating biomarkers associated with inflammatory activity. Researchers can relate TLR4 activation and downstream engagement of MyD88, IRAK4, IRAK1, TRAF6, and TAK1 to induction of cytokines and other mediators. Such work may help connect molecular pathway behavior with infection, immune-mediated disease, or excessive inflammation.
Targeted treatment research focuses on modulating excessive inflammation rather than treating the pathway as uniformly harmful. This approach reflects its two-sided role: signaling supports host defense, yet excessive activity can contribute to sepsis, tissue injury, and chronic inflammatory disorders. Understanding the pathway therefore helps guide investigations into interventions that address damaging inflammation while considering its defensive function.