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Intracellular magnesium detection by fluorescent indicators.

Valentina Trapani¹, Monika Schweigel-Röntgen, Achille Cittadini

¹Facoltà di Medicina e Chirurgia A. Gemelli, Istituto di Patologia Generale and Centro di Ricerche Oncologiche Giovanni XXIII, Università Cattolica del Sacro Cuore, Rome, Italy.

Methods in Enzymology

|February 1, 2012

Summary

This study reviews fluorescent indicators for measuring intracellular magnesium (Mg2+). It provides guidelines for selecting and using these tools to understand magnesium"s role in cell and mitochondrial function.

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Area of Science:

Biochemistry
Cell Biology
Physiology

Background:

Magnesium is vital for numerous biochemical and physiological processes.
Cellular and systemic magnesium regulatory mechanisms remain poorly understood.
Technical challenges in detecting minor magnesium fluctuations hinder research.

Purpose of the Study:

To discuss criteria for selecting magnesium-specific fluorescent indicators.
To provide examples of available and developing magnesium sensors.
To guide researchers in quantifying intracellular magnesium concentration and distribution.

Main Methods:

Spectrofluorimetric analysis for quantifying Mg(2+) in cell/mitochondria suspensions.
Live microscopy imaging techniques for detecting intracellular magnesium distribution and fluxes.
Detailed standard protocols for applying these methods.

Main Results:

Fluorescent indicators offer high sensitivity for dynamic intracellular magnesium evaluation.
Commercial and developmental sensors are available for magnesium detection.
Standardized protocols facilitate accurate measurement and imaging of magnesium.

Conclusions:

Effective selection and application of fluorescent indicators are crucial for studying magnesium.
This work provides essential guidelines for researchers investigating magnesium
The provided protocols aid in understanding magnesium
dynamics at cellular and subcellular levels.