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Norepinephrine links astrocytic activity to regulation of cortical state

2022

Poskanzer, Kira

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Norepinephrine links astrocytic activity to regulation of cortical state\r
Results\r
Discussion\r
Online content\r
Fig. 1 Changes in arousal shape astrocyte Ca2+ activity independent of movement.
Fig. 2 Astrocytes are sensitive to a range of NE increases.
Fig. 3 Astrocyte Ca2+ is positioned to reduce effects of arousal on population-level neuronal activity.
Fig. 4 Arousal-driven astrocyte Ca2+ is not dependent on local neuronal activity.
Fig. 5 NE-dependent astrocyte Ca2+ occurs at the crux of cortical state changes.
Fig. 6 Adra1a receptors modulate basal neuronal activity and neuronal population responses to arousal.
Fig. 7 Genetic removal of astrocyte Arda1a impairs cortical resynchronization after arousal.
Fig. 8 Model of astrocyte regulation of arousal-associated cortical state.
Extended Data Fig. 1 Dissection of astrocyte Ca2+ and behavioral state.
Extended Data Fig. 2 Hemodynamic correction of 2P GRABNE signals.
Extended Data Fig. 3 Freely moving fiber photometry recordings of GRABNE and astrocyte Ca2+.
Extended Data Fig. 4 Analysis of contributions to astrocyte Ca2+.
Extended Data Fig. 5 Cortical astrocyte expression of adrenergic receptors.
Extended Data Fig. 6 Generation of Adra1afl/fl mice.
Extended Data Fig. 7 Astrocyte-specific Cre expression.
Extended Data Fig. 8 Resonant galvo imaging (7.
Extended Data Fig. 9 Quantification of arousal-associated neuronal activity.

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