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Calcium Imaging Studies in Enteric Glia.

Beatriz Thomasi1, Julia Jamka2, Brian D Gulbransen2

  • 1Department of Physiology, Michigan State University, East Lansing, MI, USA. thomasi7@msu.edu.

Methods in Molecular Biology (Clifton, N.J.)
|October 1, 2025
PubMed
Summary
This summary is machine-generated.

This study presents a protocol for calcium (Ca2+) imaging in enteric glia, enabling the study of cellular activity and gut physiology. The method allows for detailed analysis of glial Ca2+ signals, crucial for understanding gut function.

Keywords:
Calcium imagingEnteric gliaEnteric nervous systemGCaMPGenetically encoded calcium indicatorsGlial cellsNeuro-glial interactionsNeurocircuits

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Gastroenterology

Background:

  • Enteric glia are crucial for gut physiology, regulating processes like gliotransmission and intercellular signaling.
  • Calcium (Ca2+) imaging is a key technique for observing cellular activity, especially in electrically passive cells like glia.
  • Studying enteric glial activity provides insights into gut function and potential dysfunction.

Purpose of the Study:

  • To describe a detailed protocol for performing Ca2+ imaging in ex vivo whole-mounts of the circular muscle-myenteric plexus.
  • To enable researchers to capture and analyze Ca2+-encoded activity in enteric glia.
  • To facilitate the study of glial roles in gut physiology and intercellular communication.

Main Methods:

  • Utilizes ex vivo whole-mount preparations of the circular muscle-myenteric plexus.
  • Employs Ca2+ imaging techniques to visualize glial cellular activity.
  • Includes comprehensive steps for experiment execution, data extraction, and subsequent analysis.

Main Results:

  • The protocol allows for successful Ca2+ imaging of enteric glia in a relevant ex vivo preparation.
  • Provides a framework for quantifying and analyzing glial Ca2+ signals.
  • Enables the study of Ca2+-dependent glial processes in gut physiology.

Conclusions:

  • This protocol offers a robust method for investigating enteric glial Ca2+ dynamics.
  • The technique is vital for understanding the contribution of enteric glia to gut physiology.
  • Further research can leverage this protocol to explore glial roles in health and disease states.