Igg-coated Microbeads
Igg-coated Microbeads - Related Videos
05:54
Microbead Implantation in the Zebrafish Embryo
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Cited by 8 •
2015
The zebrafish is an excellent model system for genetic and developmental studies. Bead implantation is a valuable tissue manipulation technique that can be used to interrogate developmental mechanisms by introducing alterations in local cellular environments. This protocol describes how to perform microbead implantation in the zebrafish embryo.
03:08
Fabrication of Amyloid-Beta-Releasing Polymer Microbeads for Modeling Alzheimer's Disease
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2025
This video demonstrates a method for fabricating polymer microbeads that encapsulate neurotoxic amyloid-beta-secreting cells. The cell-polymer suspension is processed through a microbead fabrication device, with polymer gelation achieved via calcium cross-linking, forming spherical microbeads around the cells. The polymer allows cell proliferation while allowing controlled, long-term amyloid-beta release, simulating its accumulation in Alzheimer's disease.
01:15
Transcytosis of IgG
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2023
Transcytosis is the process in which molecules are internalized by endocytosis, transported across the cell, and released through exocytosis from the opposite end of the cell. Molecules such as insulin, immunoglobulins, and certain nutrients are transferred through the recycling endosomes by recycling and transcytosis. IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
05:51
Intracerebroventricular and Intravascular Injection of Viral Particles and Fluorescent Microbeads into the Neonatal Brain
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Cited by 18 •
2016
Here, we describe a simple method of intracerebroventricular and intravascular injection of viral particles or fluorescent microbeads into the neonatal mouse brain. The localization pattern of the virus and nanoparticles could be detected by microscopic evaluation or by in situ hybridization.
09:13
Profiling Anti-Neu5Gc IgG in Human Sera with a Sialoglycan Microarray Assay
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Cited by 35 •
2017
A sialoglycan microarray assay can be used to evaluate anti-Neu5Gc antibodies in human sera, making it a potential high-throughput diagnostic assay for cancer and other chronic inflammation-mediated human diseases.
FAQs
The exposed IgG Fc regions provide the interaction point between an antibody-opsonized target and a phagocyte. When these regions bind Fcγ receptors, they connect antibody recognition to cellular handling of the bead. This engagement can support attachment followed by engulfment, enabling researchers to isolate Fcγ receptor-dependent recognition from other features of microbial infection.
Because each particle presents a standardized, nonreplicating target, researchers can compare phagocytosis across cell types or experimental conditions with less variation from microbial growth or changing target properties. Differences in bead attachment, engulfment, cellular activation, or cytokine release can therefore be interpreted in relation to the responding immune cells or tested condition.
Attachment, engulfment, and downstream activation represent related but distinct readouts. A bead may reveal whether Fcγ receptor engagement supports physical association, internalization, or a later response such as cytokine release. Measuring these outcomes separately helps investigators determine whether an experimental condition changes target capture, uptake, or signaling, rather than treating all effects as a single phagocytic result.
A basic experiment introduces the coated particles to phagocytes under defined study conditions and then examines the resulting interaction. Researchers can assess bead attachment and engulfment, followed by cellular activation or cytokine release when those responses are part of the assay. The controlled format supports direct comparisons among cell types or experimental conditions while keeping the target standardized.
They model the antibody-opsonized target encountered during host defense without relying on a replicating microbe. This makes them useful for examining how adaptive antibody recognition is connected to innate effector functions, including phagocyte uptake and activation. In infection-focused studies, the system can support reproducible investigations of immune-cell signaling and comparisons of innate responses.
The assay can provide comparative evidence about phagocytosis, antibody-dependent recognition, and associated immune responses, depending on which readouts are collected. Researchers may use those outcomes to compare innate responses across cell types or conditions and to support assay development. Interpretation should distinguish direct bead uptake from later activation or cytokine-release measurements.