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Related Concept Videos

Types of Signaling Molecules01:32

Types of Signaling Molecules

In multicellular organisms, many molecules transmit signals between cells to pass information. These signals vary in complexity and include small peptides, nucleotides, steroids, fatty acid derivatives, and dissolved gases such as nitric oxide. Some signaling molecules diffuse through the plasma membrane to act locally between neighboring cells or travel long distances. Others remain attached to the cell surface, transmitting information to other cells only when they make contact. In some...
Types of Signaling Molecules01:32

Types of Signaling Molecules

In multicellular organisms, many molecules transmit signals between cells to pass information. These signals vary in complexity and include small peptides, nucleotides, steroids, fatty acid derivatives, and dissolved gases such as nitric oxide. Some signaling molecules diffuse through the plasma membrane to act locally between neighboring cells or travel long distances. Others remain attached to the cell surface, transmitting information to other cells only when they make contact. In some...
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...
Amplifying Signals via Second Messengers01:15

Amplifying Signals via Second Messengers

Many receptor binding ligands are hydrophilic; they do not cross the cell membrane but bind to cell-surface receptors. Thus, their message must be relayed by second messengers present in the cell cytoplasm. There are several second messenger pathways, each with its own way of relaying information. For example, the G protein-coupled receptors can activate both phosphoinositol and cyclic AMP (cAMP) second messenger pathways. The phosphoinositol pathway is active when the receptor induces...
Synaptic Signaling01:09

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...

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The Power of Simplicity: Sea Urchin Embryos as in Vivo Developmental Models for Studying Complex Cell-to-cell Signaling Network Interactions
07:34

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Neural membrane signaling platforms.

Ron Wallace1

  • 1Department of Anthropology, University of Central Florida, Box 25000, Orlando, FL, 32816, USA; E-Mail: rwallace@pegasus.cc.ucf.edu ; Tel.: +1-407-823-2227;

International Journal of Molecular Sciences
|July 20, 2010
PubMed
Summary
This summary is machine-generated.

The cell membrane, once viewed only as a barrier, is now understood to regulate cellular processes and neuron signaling. Electric fields significantly impact membrane organization, with potential applications in artificial intelligence.

Keywords:
artificial intelligencelipidsmicrodomainsneuronsrafts

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Area of Science:

  • Biophysics
  • Neuroscience
  • Materials Science

Background:

  • Historically, cell membranes were primarily defined as passive barriers and protein anchors.
  • Their potential regulatory roles in cellular processes and neuronal electrical signaling were largely overlooked.
  • Recent research highlights the dynamic nature and functional complexity of cell membranes.

Purpose of the Study:

  • To review the historical evolution of cell membrane studies.
  • To examine the current understanding of electric field effects on membrane organization.
  • To explore the implications for neuronal impulse propagation and artificial intelligence.

Main Methods:

  • Review of historical biological and biophysical literature.
  • Analysis of studies on natural and artificial membranes.
  • Investigation of electric field interactions with membrane components.

Main Results:

  • Cell membranes possess regulatory functions beyond simple barrier properties.
  • Electric fields demonstrably influence molecular organization within membranes.
  • These effects are relevant to understanding neuron electrical signaling and impulse propagation.

Conclusions:

  • The functional definition of cell membranes has expanded significantly.
  • Electric field-membrane interactions offer new insights into biological systems.
  • Potential applications exist for artificial intelligence inspired by these principles.