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Updated: Jul 9, 2026
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Dissection of Local Ca2+ Signals in Cultured Cells by Membrane-targeted Ca2+ Indicators
Published on: March 22, 2019
Calcium dynamics: analyzing the Ca2+ regulatory network in intact cells.
David D Friel1, Hillel J Chiel
1Department of Neurosciences, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-4975, USA. david.friel@case.edu
Trends in Neurosciences
|December 7, 2007
Summary
New methods analyze intracellular calcium (Ca2+) dynamics in intact cells. This research details an approach to understand Ca2+ handling and its role in cellular responses, particularly in neurons.
Area of Science:
- Cellular biology
- Neuroscience
- Physiology
Background:
- Calcium signaling (Ca2+) is essential for cellular functions, linking stimuli to cellular responses.
- Intracellular Ca2+ dynamics are crucial as they influence binding protein activity and cellular effects.
- Understanding Ca2+ handling in intact cells is vital but has been limited by a lack of effective measurement methods.
Purpose of the Study:
- To develop and describe novel methods for analyzing intracellular Ca2+ fluxes in intact cells.
- To characterize Ca2+ handling systems and their regulation within cells.
- To apply these methods to investigate depolarization-induced Ca2+ responses in sympathetic neurons.
Main Methods:
- Adapted concepts from voltage-gated ion channel dynamics to analyze Ca2+ fluxes.
- Developed new approaches for measuring and characterizing intracellular Ca2+ handling.
- Applied the methods to study Ca2+ dynamics in intact sympathetic neurons.
Main Results:
- Successfully developed methods to analyze Ca2+ fluxes in intact cells.
- Characterized the interplay of Ca2+ transport and buffering systems.
- Provided insights into depolarization-induced Ca2+ responses in sympathetic neurons.
Conclusions:
- The developed methods offer a new way to study intracellular Ca2+ dynamics.
- Understanding Ca2+ handling is critical for interpreting cellular responses to stimuli.
- This approach advances the study of Ca2+ signaling in physiological contexts, particularly in neurons.
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