Evidence map›Paper›PMID 22977659›Full record

ArticleInternational journal of clinical and experimental pathology2012

Sema3F downregulates p53 expression leading to axonal growth cone collapse in primary hippocampal neurons.

Guanglu Yang, Xiang Qu, Junmei Zhang, Weidong Zhao, Hua Wang

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.1field-weighted citation impact, top 59% 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

5 citing papers in PubMed, 3 citations in OpenAlex.

  1. Semaphorins and Their Role in Neuropathic Pain.Life (Basel, Switzerland) · 2026
    Review
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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 1 institution in 1 country.

Guanglu YangDepartment of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China.
Xiang Qu
Junmei Zhang
Weidong Zhao
Hua Wang
China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hippocampal nerve growth is regulated by the coordinated action of numerous external stimuli, including positively acting neurotrophin-derived growth cues and restrictive semaphorin cues, however the underlying cellular mechanisms remain largely unclear. We examined the potential cellular mechanism of Semaphorin3F (Sema3F) in cultured primary hippocampal neurons. We show that Sema3F can down-regulate p53 expression in primary hippocampal neurons, thereby contributing to growth cone collapse. Sema3F suppressed p53-induced pathways, which we show to be required to maintain growth cone structure. Sema3F-induced growth cone collapse was partially reversed by overexpression of p53, which promoted growth cone extension. Inhibition of p53 function by inhibitor, siRNAs, induced axonal growth cone collapse, whereas p53 over-expression led to larger growth cones in cultured primary hippocampal neurons.These data reveal a novel mechanism by which Sema3F can induce hippocampal neuron growth cone collapse and provide evidence for an intracellular mechanism for cross talk between positive and negative axon growth cues.

Indexed as

AnimalsBenzothiazolesCells, CulturedCell ShapeDose-Response Relationship, DrugDown-RegulationGene SilencingGrowth ConesHippocampusIntracellular Signaling Peptides and ProteinsNerve Tissue ProteinsRatsReceptor Cross-TalkRNA, Small InterferingTolueneTumor Suppressor Protein p53BenzothiazolesIntracellular Signaling Peptides and ProteinsNerve Tissue ProteinspifithrinRNA, Small InterferingSema3F protein, ratTolueneTumor Suppressor Protein p53collapsegrowth conehippocampal neuronsp53Sema3Ftransfection

Identifiers

PMID22977659
PMCPMC3438774
OpenAlexW181471174

What OpenQuestion holds

Textmetadata
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.