Cited by 415Neurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology ResearchMemory and Neural Mechanisms

Deletion of TrkB in adult progenitors alters newborn neuron integration into hippocampal circuits and increases anxiety-like behavior

Open access
Bergami, Matteo, Rimondini, Roberto, Santi, Spartaco, Blum, Robert, Götz, Magdalena, Canossa, Marco·2008·Proceedings of the National Academy of Sciences

Abstract

New neurons in the adult dentate gyrus are widely held to incorporate into hippocampal circuitry via a stereotypical sequence of morphological and physiological transitions, yet the molecular control over this process remains unclear. We studied the role of brain-derived neurotrophic factor (BDNF)/TrkB signaling in adult neurogenesis by deleting the full-length TrkB via Cre expression within adult progenitors in TrkB(lox/lox) mice. By 4 weeks after deletion, the growth of dendrites and spines is reduced in adult-born neurons demonstrating that TrkB is required to create the basic organization of synaptic connections. Later, when new neurons normally display facilitated synaptic plasticity and become preferentially recruited into functional networks, lack of TrkB results in impaired neurogenesis-dependent long-term potentiation and cell survival becomes compromised. Because of the specific lack of TrkB signaling in recently generated neurons a remarkably increased anxiety-like behavior was observed in mice carrying the mutation, emphasizing the contribution of adult neurogenesis in regulating mood-related behavior.

Integrity signals

Registry

Crossref · 10.1073/pnas.0803702105

Cites

5 of 5 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Removal of TrkB stunted dendritic growth and adult progenitor integration into the hippocampus in adult mice, leading to more pronounced anxious behavior.

    “Removal of TrkB also stunted dendritic growth and adult progenitor integration into the hippocampus in adult mice, which led to more pronounced anxious behavior (Bergami et al., 2008).”

    From Exercise-Mediated Neurogenesis in the Hippocampus via BDNF (2018) · cites this paper as Bergami et al., 2008

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Bergami, M., Rimondini, R., Santi, S., Blum, R., Götz, M., & Canossa, M.
Affiliations
  • University of Bologna (IT)
  • Istituto Ortopedico Rizzoli (IT)
  • Physiologisches Institut (DE)
  • Helmholtz Munich (DE)
  • Italian Institute of Technology (IT)
Venue
Proceedings of the National Academy of Sciences
Published
2008-10-07
Volume
105
Issue
40
Pages
15570-15575
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2015445474
Cited by
415
References
5
Citations by year
2026: 11 · 2025: 15 · 2024: 12 · 2023: 17 · 2022: 13 · 2021: 18 · 2020: 24 · 2019: 19 · 2018: 16 · 2017: 31 · 2016: 24 · 2015: 26 · 2014: 34 · 2013: 35 · 2012: 34
FWCI
8.75
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
  • Iris (University of Trento) (submittedVersion)
  • Site cant be reached (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
TrkB, BDNF signaling, adult neurogenesis, dentate gyrus, hippocampal circuitry, synaptic plasticity, long-term potentiation, neuronal survival, anxiety-like behavior, mood regulation
MeSH terms
Animals, Anxiety, Dendrites, Hippocampus, Mice, Transgenic, Mutation, Neuronal Plasticity, Neurons, Stem Cells, Dentate Gyrus, Brain-Derived Neurotrophic Factor, Receptor, trkB, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review