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Related Concept Videos

Overview of Cell Signaling01:23

Overview of Cell Signaling

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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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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.
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An Endothelial Planar Cell Model for Imaging Immunological Synapse Dynamics
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Model membrane systems to reconstitute immune cell signaling.

Pablo F Céspedes1, Daniel Beckers2, Michael L Dustin1

  • 1Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, UK.

The FEBS Journal
|July 19, 2020
PubMed
Summary
This summary is machine-generated.

This review explores biomimetic model membrane systems for studying cellular functions. It highlights how these systems advance our understanding of immune cell signaling and the physical basis of the immunological synapse.

Keywords:
giant vesiclesimmune synapsemodel membranesreconstitutionsupported lipid bilayers

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Area of Science:

  • Biophysics
  • Cell Biology
  • Immunology

Background:

  • Cellular membrane functions depend on biochemical and biophysical properties.
  • Model membrane systems are crucial for studying these complex cellular environments.
  • The immunological synapse is a key area where membrane dynamics play a vital role in immune cell communication.

Purpose of the Study:

  • To review the interplay between membrane components and plasma membrane physical properties for biomimetic studies.
  • To discuss the advantages and limitations of various model membrane systems.
  • To explore the contribution of model systems to understanding immune cell signaling, particularly the immunological synapse.

Main Methods:

  • Literature review of biomimetic studies.
  • Analysis of plasma membrane properties and their relevance to model systems.
  • Focus on experimental approaches used in studying the immunological synapse.

Main Results:

  • Identified key membrane components and physical properties essential for biomimetic studies.
  • Evaluated the strengths and weaknesses of different model membrane systems.
  • Demonstrated how model systems have elucidated the physical principles governing immune synapses in both innate and adaptive immunity.

Conclusions:

  • Biomimetic model membranes are indispensable tools for dissecting cellular membrane functions.
  • Understanding the physical basis of the immunological synapse provides insights into immune cell interactions.
  • Further development of model systems will enhance our comprehension of cell signaling and immune responses.