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Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus
Dentate granule cells are born throughout life in the mammalian hippocampus. The integration of newborn neurons into the dentate circuit is activity-dependent, and structural data characterizing synapse formation suggested that the survival of adult-born granule cells is regulated by competition for...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7613637/ https://www.ncbi.nlm.nih.gov/pubmed/36168317 http://dx.doi.org/10.19185/matters.201610000014 |
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author | Kleine Borgmann, Felix B Gräff, Johannes Mansuy, Isabelle M Toni, Nicolas Jessberger, Sebastian |
author_facet | Kleine Borgmann, Felix B Gräff, Johannes Mansuy, Isabelle M Toni, Nicolas Jessberger, Sebastian |
author_sort | Kleine Borgmann, Felix B |
collection | PubMed |
description | Dentate granule cells are born throughout life in the mammalian hippocampus. The integration of newborn neurons into the dentate circuit is activity-dependent, and structural data characterizing synapse formation suggested that the survival of adult-born granule cells is regulated by competition for synaptic partners. Here we tested this hypothesis by using a mouse model with genetically enhanced plasticity of mature granule cells through temporally controlled expression of a nuclear inhibitor of protein phosphatase (1) (NIPP(1)*). Using thymidine analogues and retrovirus-mediated cell labeling, we show that synaptic integration and subsequent survival of newborn neurons is decreased in NIPP(1)*-expressing mice, suggesting that newborn neurons compete with preexisting granule cells for stable integration. The data presented here provides experimental evidence for a long-standing hypothesis and suggest cellular competition as a key mechanism regulating the integration and survival of newborn granule cells in the adult mammalian hippocampus. |
format | Online Article Text |
id | pubmed-7613637 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
record_format | MEDLINE/PubMed |
spelling | pubmed-76136372022-09-26 Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus Kleine Borgmann, Felix B Gräff, Johannes Mansuy, Isabelle M Toni, Nicolas Jessberger, Sebastian Matters Sel Article Dentate granule cells are born throughout life in the mammalian hippocampus. The integration of newborn neurons into the dentate circuit is activity-dependent, and structural data characterizing synapse formation suggested that the survival of adult-born granule cells is regulated by competition for synaptic partners. Here we tested this hypothesis by using a mouse model with genetically enhanced plasticity of mature granule cells through temporally controlled expression of a nuclear inhibitor of protein phosphatase (1) (NIPP(1)*). Using thymidine analogues and retrovirus-mediated cell labeling, we show that synaptic integration and subsequent survival of newborn neurons is decreased in NIPP(1)*-expressing mice, suggesting that newborn neurons compete with preexisting granule cells for stable integration. The data presented here provides experimental evidence for a long-standing hypothesis and suggest cellular competition as a key mechanism regulating the integration and survival of newborn granule cells in the adult mammalian hippocampus. 2016-12-29 /pmc/articles/PMC7613637/ /pubmed/36168317 http://dx.doi.org/10.19185/matters.201610000014 Text en https://creativecommons.org/licenses/by/4.0/This observation is distributed under the terms of the Creative Commons Attribution 4.0 International License. https://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Kleine Borgmann, Felix B Gräff, Johannes Mansuy, Isabelle M Toni, Nicolas Jessberger, Sebastian Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus |
title | Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus |
title_full | Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus |
title_fullStr | Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus |
title_full_unstemmed | Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus |
title_short | Enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus |
title_sort | enhanced plasticity of mature granule cells reduces survival of newborn neurons in the adult mouse hippocampus |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7613637/ https://www.ncbi.nlm.nih.gov/pubmed/36168317 http://dx.doi.org/10.19185/matters.201610000014 |
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