Evidence map›Paper›PMID 26705735›Full record

ArticleMolecular and cellular neurosciences2016

Control of spine maturation and pruning through proBDNF synthesized and released in dendrites.

Lauren L Orefice, Chien-Cheng Shih, Haifei Xu, Emily G Waterhouse, Baoji Xu

Abstract read
In one paragraph

Article in Molecular and cellular neurosciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 3 syntheses or guidelines pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Meta-Analysis of BDNF Levels in Autism.Cellular and molecular neurobiology · 2017
    Pooled it
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Neurotrophic Factors and Dendritic Spines.Advances in neurobiology · 2023
    Article
  10. Article
  11. Article
  12. Delta-Catenin as a Modulator of Rho GTPases in Neurons.Frontiers in cellular neuroscience · 2022
    Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Rho Signaling in Synaptic Plasticity, Memory, and Brain Disorders.Frontiers in cell and developmental biology · 2021
    Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Lauren L OreficeDepartment of Neuroscience, The Scripps Research Institute Florida, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Pharmacology and Physiology, Georgetown University Medical Center, 3900 Reservoir Road NW, Washington, DC 20057, USA.
Chien-Cheng ShihDepartment of Neuroscience, The Scripps Research Institute Florida, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Pharmacology and Physiology, Georgetown University Medical Center, 3900 Reservoir Road NW, Washington, DC 20057, USA.
Haifei XuDepartment of Neuroscience, The Scripps Research Institute Florida, 130 Scripps Way, Jupiter, FL 33458, USA.
Emily G WaterhouseDepartment of Pharmacology and Physiology, Georgetown University Medical Center, 3900 Reservoir Road NW, Washington, DC 20057, USA.
Baoji XuDepartment of Neuroscience, The Scripps Research Institute Florida, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Pharmacology and Physiology, Georgetown University Medical Center, 3900 Reservoir Road NW, Washington, DC 20057, USA. Electronic address: bxu@scripps.edu.
Georgetown University · USGeorgetown University Medical Center · USScripps Research Institute · US

Funding

Distinct roles of somatically and dendritically synthesized BDNF in spine morphogR01NS073930 · NINDS · SCRIPPS FLORIDA · PI XU, BAOJI · 2011 to 2015
$1.9M
The Role of Local BDNF Synthesis in Spine MorphogenesisF31NS074840 · NINDS · GEORGETOWN UNIVERSITY · PI OREFICE, LAUREN LYNN · 2011 to 2012
$65k
NINDS NIH HHS F31 NS074840NINDS NIH HHS R01 NS073930
6 · The paper itself

Abstract

Excess synapses formed during early postnatal development are pruned over an extended period, while the remaining synapses mature. Synapse pruning is critical for activity-dependent refinement of neuronal connections and its dysregulation has been found in neurodevelopmental disorders such as autism spectrum disorders; however, the mechanism underlying synapse pruning remains largely unknown. As dendritic spines are the postsynaptic sites for the vast majority of excitatory synapses, spine maturation and pruning are indicators for maturation and elimination of these synapses. Our previous studies have found that dendritically localized mRNA for brain-derived neurotrophic factor (BDNF) regulates spine maturation and pruning. Here we investigated the mechanism by which dendritic Bdnf mRNA, but not somatically restricted Bdnf mRNA, promotes spine maturation and pruning. We found that neuronal activity stimulates both translation of dendritic Bdnf mRNA and secretion of its translation product mainly as proBDNF. The secreted proBDNF promotes spine maturation and pruning, and its effect on spine pruning is in part mediated by the p75(NTR) receptor via RhoA activation. Furthermore, some proBDNF is extracellularly converted to mature BDNF and then promotes maturation of stimulated spines by activating Rac1 through the TrkB receptor. In contrast, translation of somatic Bdnf mRNA and the release of its translation product mainly as mature BDNF are independent of action potentials. These results not only reveal a biochemical pathway regulating synapse pruning, but also suggest that BDNF synthesized in the soma and dendrites is released through distinct secretory pathways.

Indexed as

NeurogenesisAction PotentialsAnimalsBrain-Derived Neurotrophic FactorCells, CulturedDendritic SpinesMiceMice, Inbred C57BLrac1 GTP-Binding ProteinRatsRats, Sprague-DawleyReceptor, Nerve Growth FactorReceptors, N-Methyl-D-AspartateReceptor, trkBrhoA GTP-Binding ProteinBrain-Derived Neurotrophic Factorrac1 GTP-Binding ProteinReceptor, Nerve Growth FactorReceptors, N-Methyl-D-AspartateReceptor, trkBrhoA GTP-Binding ProteinBrain-derived neurotrophic factorLocal protein synthesisp75(NTR)Spine maturationSpine pruningTrkB

Identifiers

PMID26705735
PMCPMC4761458
OpenAlexW2208257007

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.