Entrainment of Astrocytic and Neuronal Ca2+ Population Dynamics During Information Processing of Working Memory in Mice.
10.1007/s12264-021-00782-w
- Author:
Zhu LIN
1
;
Feng YOU
1
;
Ting LI
1
;
Yijia FENG
1
;
Xinyue ZHAO
1
;
Jingjing YANG
1
;
Zhimo YAO
1
;
Ying GAO
2
;
Jiang-Fan CHEN
3
Author Information
1. The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, State Key Laboratory of Ophthalmology, Optometry and Visual Science, School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, 325035, China.
2. The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, State Key Laboratory of Ophthalmology, Optometry and Visual Science, School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, 325035, China. gaoying105@163.com.
3. The Molecular Neuropharmacology Laboratory and the Eye-Brain Research Center, State Key Laboratory of Ophthalmology, Optometry and Visual Science, School of Optometry and Ophthalmology and Eye Hospital, Wenzhou Medical University, Wenzhou, 325035, China. chenjf555@gmail.com.
- Publication Type:Journal Article
- Keywords:
Astrocyte;
Ca2+ dynamics;
Fiber photometry;
Hippocampus;
Neuron;
Working memory
- MeSH:
Animals;
Astrocytes;
Hippocampus/physiology*;
Humans;
Memory, Short-Term/physiology*;
Mice;
Neurons/physiology*;
Population Dynamics
- From:
Neuroscience Bulletin
2022;38(5):474-488
- CountryChina
- Language:English
-
Abstract:
Astrocytes are increasingly recognized to play an active role in learning and memory, but whether neural inputs can trigger event-specific astrocytic Ca2+ dynamics in real time to participate in working memory remains unclear due to the difficulties in directly monitoring astrocytic Ca2+ dynamics in animals performing tasks. Here, using fiber photometry, we showed that population astrocytic Ca2+ dynamics in the hippocampus were gated by sensory inputs (centered at the turning point of the T-maze) and modified by the reward delivery during the encoding and retrieval phases. Notably, there was a strong inter-locked and antagonistic relationship between the astrocytic and neuronal Ca2+ dynamics with a 3-s phase difference. Furthermore, there was a robust synchronization of astrocytic Ca2+ at the population level among the hippocampus, medial prefrontal cortex, and striatum. The inter-locked, bidirectional communication between astrocytes and neurons at the population level may contribute to the modulation of information processing in working memory.
