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Updated: Feb 3, 2026

Synaptic Microcircuit Modeling with 3D Cocultures of Astrocytes and Neurons from Human Pluripotent Stem Cells
Published on: August 16, 2018
Versatile control of synaptic circuits by astrocytes: where, when and how?
Glenn Dallérac1, Jonathan Zapata1, Nathalie Rouach2
1Center for Interdisciplinary Research in Biology, Collège de France, CNRS UMR 7241, INSERM U1050, Labex Memolife, PSL Research University, Paris, France.
Astrocytes, crucial brain cells, can either boost or dampen synaptic activity. Their complex regulatory roles depend on their intrinsic properties and how they change throughout life.
Area of Science:
- Neuroscience
- Cell Biology
- Synaptic Plasticity
Background:
- Astrocytes interact closely with synapses, influencing brain function.
- Astrocyte regulation of synaptic transmission is complex, with dual roles in promoting or dampening efficacy.
Purpose of the Study:
- To investigate the determinants of divergent astroglial functions.
- To understand the spatiotemporal and mechanistic basis of astroglial regulation of synapses.
Main Methods:
- Analysis of molecular and functional heterogeneity in astrocytes.
- Examination of astrocyte plasticity during development and in response to neuronal activity.
Main Results:
- Astrocytes exhibit significant molecular and functional heterogeneity.
- Astrocyte properties and functions can switch during development and with neuronal activity patterns.
Conclusions:
- Astrocyte function is not static; it is dynamic and context-dependent.
- Astrocytes act as 'boosters' or 'gatekeepers' of synaptic circuits based on their intrinsic and transformative properties.
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