Cellular Interactions
Cellular Interactions - Related Videos
05:52
A Cellular Assay for the Identification of CXCR4-Interacting Agents
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2025
This video illustrates a cellular assay involving glioblastoma cells expressing CXCR4 chemokine receptors. The assay employs a calcium-sensitive dye to measure fluorescence changes upon agent interaction, offering insights into cellular signaling dynamics.
08:19
Microfluidic Tools for Probing Fungal-Microbial Interactions at the Cellular Level
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Cited by 6 •
2022
Owing to the opacity of soil, interactions between its constituent microbes cannot easily be visualised with cellular resolution. Here, two microfluidic tools are presented, which offer new opportunities for investigating fungal-microbial interactions. The devices are versatile and simple to use, enabling high spatiotemporal control and high-resolution imaging at the cellular level.
05:00
Cellular Respiration - Concepts
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2019
Autotrophs and Heterotrophs Living organisms require a continuous input of energy to maintain cellular and organismal functions such as growth, repair, movement, defense, and reproduction. Cells can only use chemical energy to fuel their functions, therefore they need to harvest energy from chemical bonds of biomolecules, such as sugars and lipids. Autotrophic organisms, namely plants, algae, and photosynthetic and chemosynthetic bacteria, convert inorganic materials into such biomolecules by...
05:44
Cellular Respiration - Student Protocol
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2019
Quantifying Respiration using Microrespirometers ExpandNOTE: In this experiment, you will measure the rate of cellular respiration for germinating seeds by measuring the rate of exchange for oxygen. As oxygen is consumed to provide energy, germinating seeds release carbon dioxide. This carbon dioxide is absorbed by potassium carbonate and thus the overall gaseous pressure of the respirometer will be reduced. HYPOTHESES: The experimental hypothesis is that germinating seeds will show a greater...
10:08
Co-culture of Glioblastoma Stem-like Cells on Patterned Neurons to Study Migration and Cellular Interactions
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Cited by 2 •
2021
Here, we present an easy-to-use co-culture assay to analyze glioblastoma (GBM) migration on patterned neurons. We developed a macro in FiJi software for easy quantification of GBM cell migration on neurons, and observed that neurons modify GBM cell invasive capacity.
FAQs
A signal first reaches a cell through direct contact, a secreted molecule binding a specific receptor, or attachment to the surrounding matrix. These inputs activate intracellular pathways that can alter gene expression. Because gene expression influences cell behavior, local interactions can produce changes in fate, differentiation, movement, or tissue organization during development.
Receptor specificity determines which cells can detect a particular secreted signal and respond to it. This restricts communication to appropriate target cells rather than producing identical effects throughout a tissue. Such selective responsiveness helps connect local signals with cell fate decisions, tissue patterning, and the coordinated development of distinct structures.
Direct cell-cell contact enables neighboring cells to influence one another through physical association, while secreted molecules can communicate with cells that carry the matching receptors. Cell-matrix attachment provides another route for activating intracellular pathways. These mechanisms can operate together, linking physical relationships and chemical signals to migration, differentiation, and morphogenesis.
Examining these interactions can show how groups of cells coordinate rather than act independently. Researchers can relate communication and adhesion to the emergence of tissue patterns, directed migration, differentiation, and morphogenesis. This perspective helps explain how developing embryos organize cells into functional tissues and ultimately form organs with coordinated structure and behavior.
During development, interactions provide contextual information that can influence what cells become and where they are positioned. Signals received from neighboring cells or matrix attachments can change intracellular pathways and gene expression, while coordinated responses across a tissue establish patterns. Together, these processes help transform local communication into organized developmental structures.
When communication, adhesion, or matrix-dependent signaling is impaired, cells may fail to coordinate their fate, movement, differentiation, or tissue organization. Studying these failures can clarify how congenital abnormalities arise and how disease affects tissues. The same principles also inform understanding of impaired tissue regeneration, where successful repair requires coordinated cellular behavior.