Host Cell Interaction
Host Cell Interaction - Related Videos
04:06
Assessing Bacteria-Host Cell Interactions Using Biomimetic Beads
0 Views •
2025
Source: Stones, D. H., et al. Biomimetic Materials to Characterize Bacteria-host Interactions. J. Vis. Exp. (2015)This video demonstrates the use of bacteriomimetic beads to quantify bacterial adhesion to host epithelial cells under competitive conditions. It outlines the steps involved in treating the cells, lysing them, and plating serial dilutions to measure colony-forming units.
05:28
A Bacterial Infection Assay for Studying Anaerobic Bacteria-Host Cell Interactions
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2025
This video demonstrates a technique for assessing the ability of Porphyromonas gingivalis, an anaerobic pathogenic bacterium, to adhere to and invade human umbilical vein endothelial cells (HUVECs). After infecting the host cells with the bacteria, the host cells are lysed to release both adhered and internalized bacteria. When the lysate is plated in an appropriate medium, the presence of colonies indicates successful bacteria-host cell interactions.
12:22
Biomimetic Materials to Characterize Bacteria-host Interactions
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Cited by 8 •
2015
Bacterial attachment to host cells is a key step during host colonization and infection. This protocol describes the generation of polymer-coupled recombinant adhesins as biomimetic materials which allow analysis of the contribution of individual adhesins to these processes, independent of other bacterial factors.
09:17
Use of an Optical Trap for Study of Host-Pathogen Interactions for Dynamic Live Cell Imaging
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Cited by 8 •
2011
A method is described to individually select, manipulate, and image live pathogens using an optical trap coupled to a spinning disk microscope. The optical trap provides spatial and temporal control of organisms and places them adjacent to host cells. Fluorescence microscopy captures dynamic intercellular interactions with minimal perturbation to cells.
12:16
Porphyromonas gingivalis as a Model Organism for Assessing Interaction of Anaerobic Bacteria with Host Cells
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Cited by 17 •
2015
This article presents two protocols: one to measure anaerobic bacteria that can successfully invade and survive within the host, and the other to visualize anaerobic bacteria interacting with host cells. This study can be applied to any cultivable anaerobe and any eukaryotic cell type.
FAQs
Receptor binding provides a selective first step that can determine how a biological entity attaches to or communicates with a host cell. Once binding occurs, it may activate intracellular signaling pathways that regulate adhesion, membrane trafficking, gene expression, or cellular entry. Examining these responses helps connect molecular recognition with changes in host-cell behavior.
Different biological partners can engage distinct host-cell surface molecules, producing different cellular responses. A pathogen may trigger changes associated with entry or disease, whereas a symbiont or neighboring cell may support colonization or beneficial communication. Comparing receptor interactions and downstream signaling therefore helps explain why related contacts can lead to different biological outcomes.
Changes in adhesion, membrane trafficking, gene expression, and cellular entry provide important readouts of host cell interaction. These outcomes show whether receptor engagement has altered how a cell attaches, moves materials across its membrane, regulates its genes, or permits another entity to enter. Measuring such responses links signaling activity to broader cellular behavior.
A typical analysis examines receptor binding, follows the associated cell-signaling response, and then evaluates changes in host-cell behavior. Investigators can compare these observations to determine how surface recognition leads to altered adhesion, membrane trafficking, gene expression, or cellular entry. This workflow connects an initiating molecular event with a measurable cellular outcome.
The approach is useful when researchers need to explain how pathogens interact with cells during infection or tissue colonization. Examining binding, signaling, and cellular entry can identify mechanisms that contribute to disease. Those findings may support the development of vaccines, antimicrobial therapies, or other strategies designed to control harmful cellular responses.
Host cell interaction provides a framework for examining both harmful and beneficial biological relationships. In immune recognition, receptor-mediated communication and signaling help reveal how cells respond to an encountered entity. In beneficial microbial relationships, the same analytical focus can clarify processes associated with tissue colonization and symbiosis, broadening biological interpretation beyond infection alone.