論文 - 詳細
| RRC ID | 89528 |
|---|---|
| 著者 | Bukalo O, O'Sullivan R, Tanisumi Y, Mendez A, Weinholtz C, Zimmerman S, Offenberg V, Carpenter O, Bhagwat H, Mosley S, O'Malley JJ, Lyons K, Fang Y, Goldschlager J, Ostroff LE, Penzo MA, Wake H, Halladay LR, Holmes A. |
| タイトル | Astrocytes enable amygdala neural representations supporting memory. |
| ジャーナル | Nature |
| Abstract |
Brain systems mediating responses to previously encountered threats provide critical survival functions. Fear memory and extinction are underpinned by neural representations in the basolateral amygdala (BLA)1-7, but the contribution of non-neuronal cells, including astrocytes, to these processes remains unresolved. Here, using in vivo calcium (Ca2+) imaging and causal astrocyte manipulations, we find that BLA astrocytes dynamically track fear state and support fear memory retrieval and extinction. By combining astrocyte manipulations with in vivo BLA neuronal Ca2+ imaging and electrophysiological recordings, we show that astrocyte Ca2+ signalling enables neuronal encoding of fear memory retrieval and extinction, and readout through a BLA-prefrontal circuit. Our findings reveal a key role for astrocytes in the generation and adaptation of fear-state-related neural representations, revising neurocentric models of critical amygdala-mediated adaptive functions. |
| 巻・号 | 652(8109) |
| ページ | 434-441 |
| 公開日 | 2026-4-1 |
| DOI | 10.1038/s41586-025-10068-0 |
| PII | 10.1038/s41586-025-10068-0 |
| PMID | 41673152 |
| PMC | PMC13061616 |
| MeSH | Amygdala* / cytology Amygdala* / physiology Animals Astrocytes* / cytology Astrocytes* / metabolism Astrocytes* / physiology Basolateral Nuclear Complex* / cytology Basolateral Nuclear Complex* / physiology Calcium / metabolism Calcium Signaling Extinction, Psychological / physiology Fear / physiology Fear / psychology Male Memory* / physiology Mental Recall / physiology Mice Mice, Inbred C57BL Neurons / metabolism Neurons / physiology Prefrontal Cortex / cytology Prefrontal Cortex / physiology |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 202 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 127.6 |
| リソース情報 | |
| 実験動物マウス | RBRC09650 |