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Astrocytes form specific, plastic networks across the mouse brain

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Research area:biology-genetics

What the study found

The study found that astrocytes, a type of brain support cell, form multiple networks across the mouse brain. These networks connect specific regions selectively, rather than spreading indiscriminately, and they can include both local and long-range connections.

Why the authors say this matters

The authors conclude that this reveals a mode of communication between distant brain regions that is mediated by plastic networks of gap junction-coupled astrocytes. They also note that astrocyte gap junction communication is important for memory formation, synaptic plasticity, coordination of neuronal signaling, and critical period closure.

What the researchers tested

The researchers developed a vector-based method that labels molecules as they move through astrocyte gap junctions in awake, behaving animals. They combined this with whole-brain tissue clearing to image intact three-dimensional astrocyte networks in mice.

What worked and what didn't

The approach showed that multiple astrocyte networks traverse the mouse brain and vary in size and organization. The study reports local networks confined to single brain regions and long-range networks that robustly interconnect multiple regions across hemispheres, often with patterns distinct from known neuronal networks. The authors also observed structural reorganization of these networks in the adult brain after sensory deprivation.

What to keep in mind

The abstract does not describe detailed limitations beyond noting that earlier methods such as slice electrophysiology disrupted connectivity and could create artifacts from tissue damage. The findings are reported in mice, so the abstract does not state whether they apply to other species.

Key points

  • Astrocytes form multiple networks across the mouse brain.
  • These networks connect specific regions selectively, not indiscriminately.
  • Some astrocyte networks are local, while others link regions across hemispheres.
  • The networks can reorganize in the adult brain after sensory deprivation.
  • The study used a vector-based labeling method plus whole-brain tissue clearing.

Disclosure

Research title:
Astrocytes form specific, plastic networks across the mouse brain
Authors:
Melissa Cooper, María Clara Sellés, Michael Cammer, Chase Redd, Holly K. Gildea, Joseph Sall, Katelyn E Chiurri, Philip Cheung, Damian G. Wheeler, Aiman S. Saab, Shane A. Liddelow, Melody Chao
Institutions:
ETH Zurich, New York University, New York University, New York University, New York University, New York University, New York University, New York University, New York University, NYU Langone Health, NYU Langone Health, University of California, Irvine, University of California, Irvine, University of California, Irvine, University of Zurich
Publication date:
2026-04-22
DOI:
10.1038/s41586-026-10426-6
OpenAlex record:
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AI provenance: This post was generated by gpt-5.4-mini (OpenAI). The original authors did not write or review this post.

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