Spatiotemporal Signaling Dynamics

Spatiotemporal signaling dynamics describes how biological signals vary across location and time, shaping coordinated cellular behavior in health and disease. Signals such as growth factors, cytokines, and neurotransmitters move through tissues, bind receptors, and activate intracellular pathways whose strength, duration, and distribution are regulated by diffusion, compartmentalization, feedback, and signal degradation. In medicine, analyzing these dynamics helps explain how cells coordinate inflammation, development, immune responses, and tissue repair. It also supports the study of pathological signaling in cancer and other disorders, guiding the development of diagnostic approaches and treatments that target not only which pathways are active, but also when and where they operate.

Spatiotemporal Signaling Dynamics - Related Videos

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JoVE Journal - Biology

Spatiotemporal Analysis of Cytokinetic Events in Fission Yeast

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Cited by 6 •

2017

The fission yeast, Schizosaccharomyces pombe is an excellent model system to study cytokinesis, the final stage in cell division. Here we describe a microscopy approach to analyze different cytokinetic events in live fission yeast cells.

Research

JoVE Journal - Biology
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Spatiotemporal Mapping of Motility in Ex Vivo Preparations of the Intestines

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Cited by 26 •

2016

Recently available video recording and spatiotemporal mapping (STmap) techniques make it possible to visualize and quantify both propagating and mixing patterns of intestinal motility. The goal of this protocol is to explain the generation and analysis of STmaps using the GastroIntestinal Motility Monitoring (GIMM) system.

Imaging G-protein Coupled Receptor (GPCR)-mediated Signaling Events that Control Chemotaxis of Dictyostelium Discoideum

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Cited by 2 •

2011

Here, we describe detailed live cell imaging methods for investigating chemotaxis. We present fluorescence microscopic methods to monitor spatiotemporal dynamics of signaling events in migrating cells. Measurement of signaling events permits us to further understand how a GPCR-signaling network achieves gradient sensing of chemoattractants and controls directional migration of eukaryotic cells.

Research

JoVE Journal - Biology
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Probing Structural and Dynamic Properties of Trafficking Subcellular Nanostructures by Spatiotemporal Fluctuation Spectroscopy

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Cited by 1 •

2021

Imaging-derived mean square displacement (iMSD) analysis is applied to macropinosomes to highlight their intrinsic time-evolving nature in terms of structural and dynamic properties. Macropinosomes are then compared to insulin secretory granules (ISGs) as a reference for subcellular structures with time-invariant average structural/dynamic properties.

High-resolution Spatiotemporal Analysis of Receptor Dynamics by Single-molecule Fluorescence Microscopy

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Cited by 14 •

2014

This protocol describes how to use total internal reflection fluorescence microscopy to visualize and track single receptors on the surface of living cells and thereby analyze receptor lateral mobility, size of receptor complexes as well as to visualize transient receptor-receptor interactions. This protocol can be extended to other membrane proteins.

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