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Related Experiment Video

Updated: Nov 1, 2025

Imaging Intracellular Ca2+ Signals in Striatal Astrocytes from Adult Mice Using Genetically-encoded Calcium Indicators
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Using Genetically Encoded Calcium Indicators to Study Astrocyte Physiology: A Field Guide.

Christian Lohr1, Antonia Beiersdorfer1, Timo Fischer1

  • 1Division of Neurophysiology, University of Hamburg, Hamburg, Germany.

Frontiers in Cellular Neuroscience
|June 28, 2021
PubMed
Summary

Genetically encoded calcium indicators (GECIs) are now standard for studying glial cells. This review helps researchers choose the best GECI for their specific glial cell research needs.

Keywords:
GCaMPastrocytecalcium imagingcalcium sensorgenetically encoded calcium indicatorglial cells

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Biochemistry

Background:

  • Calcium (Ca2+) imaging is crucial for understanding glial cell physiology.
  • Chemical Ca2+ indicators were historically used but have limitations.
  • Genetically encoded Ca2+ indicators (GECIs) represent a significant advancement.

Purpose of the Study:

  • To review commonly used GECIs for Ca2+ imaging in glial cells.
  • To discuss the properties and applications of various GECIs.
  • To guide researchers in selecting the optimal GECI for their studies.

Main Methods:

  • Literature review of GECI development and application.
  • Comparative analysis of different GECIs based on their physical properties.
  • Discussion of GECI suitability for glial cell research.

Main Results:

  • GECIs offer improved performance over chemical indicators for Ca2+ imaging.
  • A wide array of GECIs with diverse characteristics are available.
  • Selection of the appropriate GECI is critical for successful glial cell studies.

Conclusions:

  • GECIs are the current state-of-the-art for Ca2+ imaging in glial cells.
  • Understanding GECI properties is essential for researchers.
  • This review provides a guide for choosing the most suitable GECI for glial cell research.