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  • Calcium imaging and BAPTA loading of amygdala astrocytes in mouse brain slices.

Calcium imaging and BAPTA loading of amygdala astrocytes in mouse brain slices.

STAR protocols (2022-02-25)
Angel Baudon, Etienne Clauss-Creusot, Pascal Darbon, Ryan Patwell, Valery Grinevich, Alexandre Charlet
ABSTRACT

Astrocytes are glial cells that exhibit calcium signaling-mediated activity. Here, we present a protocol to monitor and manipulate astrocyte calcium activity from mouse amygdala slices. In the first part of this protocol, we describe the procedure of astrocyte calcium imaging. In the second part, we detail how to disrupt astrocyte calcium activity by patch-clamp-mediated loading of BAPTA. These two approaches are presented separately but they can also be used simultaneously to monitor the effects of disruption on an astrocyte network. For complete details on the use and execution of this protocol, please refer to Wahis et al. (2021).

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
HEPES, BioPerformance Certified, ≥99.5% (titration), suitable for cell culture
Sigma-Aldrich
Guanosine 5′-triphosphate sodium salt hydrate, ≥90% (HPLC)
Sigma-Aldrich
N-Acetyl-L-cysteine, Sigma Grade, ≥99% (TLC), powder