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Related Concept Videos

Contact-dependent Signaling01:19

Contact-dependent Signaling

Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
Cell-surface Signaling01:21

Cell-surface Signaling

Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse across the cell membrane. In order to be able to affect a cell without entering it, these hormones bind to receptors on the cell membrane. When a first messenger, a hormone, binds to a receptor, a signal cascade is set off, causing second messengers, proteins inside the cell, to become activated, resulting in downstream effects.
What is Cell Signaling?02:03

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
What is Cell Signaling?02:03

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...

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Related Experiment Video

Updated: May 28, 2026

Analysis of Trunk Neural Crest Cell Migration using a Modified Zigmond Chamber Assay
12:17

Analysis of Trunk Neural Crest Cell Migration using a Modified Zigmond Chamber Assay

Published on: January 19, 2012

Giving space to cell signaling.

Boris N Kholodenko1, Walter Kolch

  • 1Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA. boris.kholodenko@jefferson.edu

Cell
|May 20, 2008
PubMed
Summary

Neves et al. (2008) show how neuron shape and signaling pathway motifs control spatial information propagation. This research clarifies how cellular architecture influences complex biological signaling in the brain.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Biochemistry

Background:

  • Spatial organization of enzymes within cellular pathways influences signaling dynamics.
  • Microdomains and gradients are crucial for cellular communication and function.
  • Understanding the interplay between spatial information and signaling is key in neuroscience.

Discussion:

  • Neves et al. (2008) investigate how neuronal morphology, specifically hippocampal neuron shape, impacts spatial signaling.
  • The study examines the role of feedback and feed-forward motifs within the beta-adrenergic receptor signaling pathway.
  • This research connects cellular structure to the control of signal propagation.

Key Insights:

  • Neuronal shape is a critical determinant in controlling the propagation of spatial information.

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Trophoblast Cell Recovery from Angiogenesis-Tube Formation Assay for Differentiation Marker Expression Analysis

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Related Experiment Videos

Last Updated: May 28, 2026

Analysis of Trunk Neural Crest Cell Migration using a Modified Zigmond Chamber Assay
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10:56

Co-localization of Cell Lineage Markers and the Tomato Signal

Published on: December 28, 2016

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Trophoblast Cell Recovery from Angiogenesis-Tube Formation Assay for Differentiation Marker Expression Analysis

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  • Signaling pathway architecture, including feedback and feed-forward loops, modulates how spatial information is processed.
  • The beta-adrenergic receptor pathway serves as a model for understanding these structure-function relationships.

    • Outlook:

    • Further research can explore how other neuronal types and signaling pathways utilize spatial information.
    • Computational modeling combined with advanced imaging can offer deeper insights into these complex cellular mechanisms.
    • This work lays the foundation for understanding neurological disorders linked to disrupted spatial signaling.