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Related Concept Videos

Diversity in Cell Signaling Responses01:22

Diversity in Cell Signaling Responses

6.9K
The physiological function of a cell and cellular communication are outcomes of a range of extrinsic signals, intracellular signaling pathways, and cellular responses. No two cell types express the same repertoire of signaling components. Receptors are highly selective for their cognate ligands, but once activated, they can alter multiple cellular processes such as DNA transcription, protein synthesis, and metabolic activity. 
Graded and Abrupt Responses
Some signaling systems generate...
6.9K
Cell Signaling Feedback Loops01:07

Cell Signaling Feedback Loops

6.7K
Positive and negative feedback loops are crucial for regulating biological signaling systems. These feedback loops are processes that connect output signals to their inputs.
Negative feedback loops
Most signaling systems have negative feedback loops that can perform different functions such as output limiter, and adaptation.
Output limiter
Upon receiving an input signal, the cellular response rapidly increases until a threshold is reached. Beyond this threshold, a negative feedback loop...
6.7K
Cell-surface Signaling01:21

Cell-surface Signaling

52.5K
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.
52.5K
Assembly of Signaling Complexes01:30

Assembly of Signaling Complexes

6.0K
Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
6.0K
What is Cell Signaling?02:03

What is Cell Signaling?

121.5K
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.
121.5K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

6.6K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
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Related Experiment Video

Updated: Sep 30, 2025

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

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Deep Hidden Physics Modeling of Cell Signaling Networks.

Martin Seeger1,2, James Longden2, Edda Klipp1,2

  • 1Humboldt-Universitätzu Berlin, Theoretical Biophysics, Invalidenstr. 42, 10115 Berlin, Germany.

Current Genomics
|March 11, 2022
PubMed
Summary
This summary is machine-generated.

Cancer drug development faces low success rates. New computational models are needed to predict molecular signaling network changes in cancer, improving therapeutic development.

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Related Experiment Videos

Last Updated: Sep 30, 2025

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

  • Oncology
  • Bioinformatics
  • Computational Biology

Background:

  • Cancer is a leading global cause of death, incurring substantial economic costs.
  • Current cancer therapeutics face challenges including low market approval rates and drug resistance.
  • Kinase signaling pathways are crucial in cancer, but existing inhibitors cause toxicity and resistance.

Purpose of the Study:

  • To address the urgent need for novel cancer therapeutics.
  • To improve the understanding and modeling of cancer-related cell signaling networks.
  • To develop advanced computational models for predicting molecular signaling alterations in cancer.

Main Methods:

  • Utilizing data-driven deep-learning approaches.
  • Developing mechanistic computational models.
  • Generating in silico probabilistic predictions of molecular signaling network rearrangements.

Main Results:

  • The study proposes a framework for sophisticated computational modeling.
  • The models aim to predict causal molecular signaling network alterations in cancer.
  • This approach facilitates global and mechanistic modeling of cancer signaling.

Conclusions:

  • Advanced computational models are essential for understanding cancer signaling.
  • Data-driven and mechanistic models can improve the prediction of cancer-related molecular changes.
  • This work supports the development of more effective and sustainable cancer therapeutics.