Cited by 619Neurogenesis and neuroplasticity mechanismsNerve injury and regenerationMemory and Neural Mechanisms

Brain-derived neurotrophic factor (BDNF) is required for the enhancement of hippocampal neurogenesis following environmental enrichment

Rossi, Chiara, Angelucci, Andrea, Costantin, Laura, Braschi, Chiara, Mazzantini, Mario, Babbini, Francesco, Fabbri, Maria Elena, Tessarollo, Lino +3 more·2006·European Journal of Neuroscience

Abstract

Neurogenesis continues to occur in the adult mammalian hippocampus and is regulated by both genetic and environmental factors. It is known that exposure to an enriched environment enhances the number of newly generated neurons in the dentate gyrus. However, the mechanisms by which enriched housing produces these effects are poorly understood. To test a role for neurotrophins, we used heterozygous knockout mice for brain‐derived neurotrophic factor (BDNF+/–) and mice lacking neurotrophin‐4 (NT‐4–/–) together with their wild‐type littermates. Mice were either reared in standard laboratory conditions or placed in an enriched environment for 8 weeks. Animals received injections of the mitotic marker bromodeoxyuridine (BrdU) to label newborn cells. Enriched wild‐type and enriched NT‐4–/– mice showed a two‐fold increase in hippocampal neurogenesis as assessed by stereological counting of BrdU‐positive cells in the dentate gyrus and double labelling for BrdU and the neuronal marker NeuN. Remarkably, this enhancement of hippocampal neurogenesis was not seen in enriched BDNF+/– mice. Failure to up‐regulate BDNF accompanied the lack of a neurogenic response in enriched BDNF heterozygous mice. We conclude that BDNF but not NT‐4 is required for the environmental induction of neurogenesis.

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Crossref · 10.1111/j.1460-9568.2006.05059.x

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  • In mice, BDNF is required for hippocampal neurogenesis spurred by an enriched environment.

    “Indeed, in mice, BDNF is required for hippocampal neurogenesis spurred by an enriched environment, and BDNF has been shown to have coordinated effects with antidepressants on neuronal progenitor cells in the hippocampus (Sairanen et al., 2005; Rossi et al., 2006).”

    From Exercise-Mediated Neurogenesis in the Hippocampus via BDNF (2018) · cites this paper as Rossi et al., 2006

  • BDNF has coordinated effects with antidepressants on neuronal progenitor cells in the hippocampus.

    “Indeed, in mice, BDNF is required for hippocampal neurogenesis spurred by an enriched environment, and BDNF has been shown to have coordinated effects with antidepressants on neuronal progenitor cells in the hippocampus (Sairanen et al., 2005; Rossi et al., 2006).”

    From Exercise-Mediated Neurogenesis in the Hippocampus via BDNF (2018) · cites this paper as Rossi et al., 2006

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Authors
Rossi, C., Angelucci, A., Costantin, L., Braschi, C., Mazzantini, M., Babbini, F., Fabbri, M. E., Tessarollo, L., Maffei, L., Berardi, N., & Caleo, M.
Affiliations
  • Neuroscience Institute (IT)
  • Scuola Normale Superiore (IT)
  • National Cancer Institute (US)
Corresponding author
Caleo, Matteo
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2006-10
Volume
24
Issue
7
Pages
1850-1856
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2111443630
Cited by
619
References
3
Citations by year
2026: 13 · 2025: 20 · 2024: 24 · 2023: 22 · 2022: 34 · 2021: 39 · 2020: 33 · 2019: 34 · 2018: 33 · 2017: 42 · 2016: 43 · 2015: 26 · 2014: 40 · 2013: 44 · 2012: 29
FWCI
7.45
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Florence Research (University of Florence) (submittedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
brain-derived neurotrophic factor, hippocampal neurogenesis, environmental enrichment, neurotrophin-4, dentate gyrus, adult neurogenesis, BDNF knockout mice, neurotrophins, enriched housing
MeSH terms
Animals, Bromodeoxyuridine, Cell Count, Environment, Hippocampus, Immunohistochemistry, Nerve Growth Factors, Neurons, Phosphopyruvate Hydratase, Blotting, Western, Gene Expression, Mice, Knockout, Brain-Derived Neurotrophic Factor, Organogenesis, Mice

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