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Related Concept Videos

MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

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...
Calmodulin-dependent Signaling01:16

Calmodulin-dependent Signaling

Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...

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Related Experiment Video

Updated: Jun 9, 2026

Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy
10:41

Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy

Published on: June 7, 2019

Methods to study MAP kinase signalling in the central nervous system.

Bettina Wagner1, Maria Sibilia

  • 1APEIRON Biologics AG, Vienna, Austria.

Methods in Molecular Biology (Clifton, N.J.)
|September 3, 2010
PubMed
Summary

Mitogen-activated protein kinases (MAPKs) regulate neural cell development and apoptosis, impacting neurodegenerative diseases. Understanding MAPK signaling is crucial for developing future therapies targeting these disorders.

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Last Updated: Jun 9, 2026

Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy
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Area of Science:

  • Neuroscience
  • Cell Biology
  • Molecular Biology

Background:

  • Mitogen-activated protein kinases (MAPKs) are crucial intracellular signal transducers.
  • MAPKs regulate survival, proliferation, and differentiation in the central and peripheral nervous systems.
  • MAPK signaling pathways are implicated in neurodegenerative diseases by controlling neural cell apoptosis.

Purpose of the Study:

  • To elucidate the role of MAPK signaling in neural cell development.
  • To investigate the involvement of MAPKs in neurodegeneration.
  • To understand the function of EGFR and its downstream pathways in neural cells.

Main Methods:

  • Primary astrocyte and neuron culture techniques.
  • Analysis of cellular responses to MAPK pathway activation.
  • Investigation of epidermal growth factor receptor (EGFR) signaling.

Main Results:

  • MAPKs differentially regulate neuronal and glial lineage differentiation.
  • MAPK pathways influence neural cell apoptosis, a key factor in neurodegeneration.
  • EGFR signaling plays a significant role in neural cell development and neurodegeneration.

Conclusions:

  • Detailed understanding of MAPK functions in neural cells is vital for therapeutic development.
  • Targeting MAPK pathways holds promise for preventing neurodegenerative disorders.
  • EGFR and its downstream signaling are critical targets for future research in neurodegeneration.