Lps Antibody Complex
Lps Antibody Complex - Related Videos
08:51
Intraductal Injection of LPS as a Mouse Model of Mastitis: Signaling Visualized via an NF-κB Reporter Transgenic
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Cited by 14 •
2012
Described here is a technique in which lipopolysaccharide is injected into the lactating mouse mammary gland via the nipple to simulate mastitis, a condition commonly caused by bacterial infection. Lipopolysaccharide injection results in increased nuclear factor kappa B (NF-κB) signaling, visualized through bioluminescent imaging of an NF-κB luciferase reporter mouse.
04:50
Phosphopeptide Enrichment: An Antibody-based Immunoprecipitation Technique to Separate Specific Phosphorylated Peptides from Complex Peptide Mixtures
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2023
In this video, we demonstrate antibody-based immunoprecipitation of phosphopeptides from a peptide mixture. The enriched phosphopeptides are vacuum concentrated and stored for downstream analysis.
05:40
A Serum Bactericidal Assay for the Complement-Mediated Bactericidal Activity of Antibodies
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2025
This video demonstrates a technique to evaluate the complement-mediated bactericidal activity of antibodies present in serum. This approach combines isolated serum with pathogenic bacteria and exogenous complement proteins. Upon incubation, the bacteria are grown on an agar plate, and the produced colonies are quantified to measure the serum bactericidal titer.
13:21
Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples
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Cited by 6 •
2012
In this study, we describe an improved protocol for a multiplexed high-throughput antibody microarray with lectin detection method that can be used in glycosylation profiling of specific proteins. This protocol features new reliable reagents and significantly reduces the time, cost, and lab equipment requirements as compared to the previous procedure.
13:21
Antibody Generation: Producing Monoclonal Antibodies Using Hybridomas
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2023
Source: Frances V. Sjaastad1,2, Whitney Swanson2,3, and Thomas S. Griffith1,2,3,4 1 Microbiology, Immunology, and Cancer Biology Graduate Program, University of Minnesota, Minneapolis, MN 55455 2 Center for Immunology, University of Minnesota, Minneapolis, MN 55455 3 Department of Urology, University of Minnesota, Minneapolis, MN 55455 4 Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455 Polyclonal antibodies are defined as a collection of antibodies directed against...
FAQs
Recognition depends on the specific structural region exposed to the antibody. Antibodies may target lipid A, the endotoxin-associated portion of LPS, or polysaccharide regions that contribute to the bacterial surface structure. This specificity matters because different antibody targets can influence how effectively the resulting complex interferes with LPS activity or supports its immune-mediated handling.
Antibody binding can limit the interaction between LPS and immune receptors such as Toll-like receptor 4. Reducing that interaction is relevant because receptor engagement contributes to the host response to bacterial endotoxin. In medicine, this mechanism provides a basis for studying how antibody recognition might affect excessive inflammation associated with Gram-negative bacterial infection.
Once antibodies bind LPS, the resulting complex can be handled through Fc-receptor-mediated uptake or complement activation. Fc receptors provide a route for immune cells to recognize antibody-associated material, whereas complement represents another immune mechanism that can support clearance. Comparing these pathways helps investigators examine how antibody binding contributes to removal of endotoxin-related material.
Antibody specificity determines which part of LPS is recognized and therefore shapes the biological question being investigated. Targeting lipid A focuses attention on the endotoxin-associated region, while targeting polysaccharide regions examines other surface structures. This distinction helps researchers interpret whether observed effects relate to receptor interaction, immune clearance, or broader host-pathogen recognition.
These complexes provide experimental tools for examining the relationship between bacterial endotoxin and host inflammation. In sepsis and endotoxemia studies, investigators can focus on antibody recognition, altered interaction with immune receptors, and possible clearance through Fc receptors or complement. Such work helps clarify mechanisms that may contribute to excessive inflammatory responses during bacterial infection.
Antibodies that recognize defined LPS structures can serve as selective recognition components in diagnostic assays. Their value comes from binding bacterial endotoxin-related targets rather than relying only on general immune activation. This application supports investigations that distinguish LPS-associated signals and extends the study of antibody recognition from mechanistic immunology into medical detection approaches.
They help connect a bacterial surface component with the immune processes that respond to it. By examining which LPS regions antibodies recognize, how receptor interaction is affected, and whether Fc-receptor uptake or complement activation supports clearance, researchers can investigate both microbial features and host defenses. This makes the complexes useful in broader studies of host-pathogen biology.