Cited by 115Nerve injury and regenerationNeuroscience and Neuropharmacology ResearchNeurogenesis and neuroplasticity mechanisms

BDNF-Promoted Increases in Proximal Dendrites Occur via CREB-Dependent Transcriptional Regulation of Cypin

Open access
Kwon, M., Fernandez, J. R., Zegarek, G. F., Lo, S. B., Firestein, B. L.·2011·Journal of Neuroscience

Abstract

Alterations in dendrite branching and morphology are present in many neurodegenerative diseases. These variations disrupt postsynaptic transmission and affect neuronal communication. Thus, it is important to understand the molecular mechanisms that regulate dendritogenesis and how they go awry during disease states. Previously, our laboratory showed that cypin, a mammalian guanine deaminase, increases dendrite number when overexpressed and decreases dendrite number when knocked down in cultured hippocampal neurons. Here, we report that exposure to brain-derived neurotrophic factor (BDNF), an important mediator of dendrite arborization, for 72 h but not for 24 h or less increases cypin mRNA and protein levels in rat hippocampal neurons. BDNF signals through cypin to regulate dendrite number, since knocking down cypin blocks the effects of BDNF. Furthermore, BDNF increases cypin levels via mitogen-activated protein kinase and transcription-dependent signaling pathways. Moreover, the cypin promoter region contains putative conserved cAMP response element (CRE) regions, which we found can be recognized and activated by CRE-binding protein (CREB). In addition, exposure of the neurons to BDNF increased CREB binding to the cypin promoter and, in line with these data, expression of a dominant negative form of CREB blocked BDNF-promoted increases in cypin protein levels and proximal dendrite branches. Together, these studies suggest that BDNF increases neuronal cypin expression by the activation of CREB, increasing cypin transcription leading to increased protein expression, thus identifying a novel pathway by which BDNF shapes the dendrite network.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.6785-10.2011

Cites

87 of 87 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • mBDNF-TrkB-signaling pathways regulate multiple events, such as apoptosis and survival of neurons, dendritic growth, spine maturation and stabilization, development of synapses, and learning- and memory-processes-dependent synaptic plasticity.

    “mBDNF-TrkB-signaling pathways regulate multiple events, such as apoptosis and survival of neurons [90,91,92], dendritic growth [93,94,95,96], spine maturation and stabilization, development of synapses [96,97,98], learning- and memory-processes-dependent synaptic plasticity [99,100].”
  • BDNF-TrkB signaling pathways regulate dendritic growth, synapse development, learning- and memory-processes-dependent synaptic plasticity, apoptosis, and survival of neurons.

    “BDNF-TrkB signaling pathways regulate multiple events, such as dendritic growth, pine maturation and stabilization [41,42,43], development of synapses [44,45], learning- and memory-processes-dependent synaptic plasticity [40,46,47], apoptosis, and survival of neurons [48,49,50,51].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Firestein BL Brenman JE Aoki C Sanchez-Perez AM El-Husseini AE Bredt DS 1999 Cypin: a cytosolic regulator of PSD-95 postsynaptic targeting Neuron 24 659 672 10595517

Cited by

Sorted by citations

Authors
Kwon, M., Fernandez, J. R., Zegarek, G. F., Lo, S. B., & Firestein, B. L.
Affiliations
Rutgers, The State University of New Jersey (US)
Corresponding author
Firestein, B. L.
Venue
Journal of Neuroscience
Published
2011-06-29
Volume
31
Issue
26
Pages
9735-9745
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2123387448
Cited by
115
References
87
Citations by year
2025: 8 · 2024: 8 · 2023: 15 · 2022: 9 · 2021: 8 · 2020: 8 · 2019: 3 · 2018: 5 · 2017: 6 · 2016: 12 · 2015: 8 · 2014: 3 · 2013: 11 · 2012: 9
FWCI
3.31
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation (0548543, 0333196, 0919747)
  • March of Dimes Foundation (1-FY04-107, 1-FY08-464)
  • American Heart Association
  • National Institute of General Medical Sciences (R25GM055145)
  • Division of Graduate Education
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
brain-derived neurotrophic factor, CREB, dendritic branching, dendritogenesis, hippocampal neurons, transcriptional regulation, cAMP response element, mitogen-activated protein kinase, guanine deaminase, neuronal morphology, neurodegenerative diseases
MeSH terms
Animals, Carrier Proteins, Cells, Cultured, Dendrites, Gene Expression Regulation, Guanine Deaminase, Hippocampus, Immunohistochemistry, Neurons, RNA, Messenger, Transcription, Genetic, Blotting, Western, Signal Transduction, Cyclic AMP Response Element-Binding Protein, Brain-Derived Neurotrophic Factor, Reverse Transcriptase Polymerase Chain Reaction, Chromatin Immunoprecipitation, Rats

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