Caffeine as a Tool to Estimate Sarcoplasmic Ca2+ Content in Cardiomyocytes

Medical University of Graz
Division of Cardiology
Lab Technician

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Company:

Tocris Bioscience

Product Name:

Caffeine

Catalog Number:

2793/100

Caffeine is a RyR2 agonist leading to calcium release from sarcoplasmic reticulum to the cytosol.

Experimental Design and Results Summary

Application

Cell culture

Starting Material

N/A

Protocol Overview

Control or saxagliptin-treated primary guinea pig cardiomyocytes were loaded with FURA-2AM (1 µM) and Pluronic F 127 (1%). Ca2+ transient decay tau evoked by caffeine (30 µM) is shown in the Image.

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Results Summary

Caffeine acts as a ryanodine receptor agonist and releases Ca2+ from sarcoplasmic reticulum into the cytosol.

DOI or PMID #

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Additional Notes

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Image Gallery

Summary

The Good

Works as expected

The Bad

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The Bottom Line

Caffeine can be used to measure SR calcium content.

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