Evidence map›Paper›PMID 28569173›Full record

ArticleMolecular brain2017

ApoE isoforms differentially regulates cleavage and secretion of BDNF.

Abhik Sen, Thomas J Nelson, Daniel L Alkon

Open access · goldAbstract read
In one paragraph

Article in Molecular brain, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

34 citing papers in PubMed, 58 citations in OpenAlex.

  1. Trial
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  7. Potential role ofFrontiers in aging neuroscience · 2024
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  16. Peptides Derived from Growth Factors to Treat Alzheimer's Disease.International journal of molecular sciences · 2021
    Review
  17. Article
  18. Article
  19. Article
  20. The physiology of regulated BDNF release.Cell and tissue research · 2020
    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

3 authors at 1 institution in 1 country.

Abhik SenBlanchette Rockefeller Neurosciences Institute, 8 Medical Center Drive, Morgantown, WV, 26505, USA. asen@hsc.wvu.edu.ORCID 0000-0003-4048-0566
Thomas J NelsonBlanchette Rockefeller Neurosciences Institute, 8 Medical Center Drive, Morgantown, WV, 26505, USA.
Daniel L AlkonBlanchette Rockefeller Neurosciences Institute, 8 Medical Center Drive, Morgantown, WV, 26505, USA.
Blanchette Rockefeller Neurosciences Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Apolipoprotein E4 (ApoE4) is a major genetic risk factor for sporadic or late onset Alzheimer's disease (AD). Brain-derived neurotrophic factor (BDNF) is decreased by 3 to 4-fold in the brains of AD patients at autopsy. ApoE4 mice also have reduced BDNF levels. However, there have been no reports relating the different ApoE isoforms or AD to differential regulation of BDNF. Here we report that in the hippocampal regions of AD patients both prepro-BDNF and pro-BDNF expression showed a 40 and 60% decrease respectively compared to that expression in the hippocampi of age-matched control patients. We further report that ApoE isoforms differentially regulate maturation and secretion of BDNF from primary human astrocytes. After 24 h, ApoE3 treated astrocytes secreted 1.75- fold higher pro-BDNF than ApoE2-treated astrocytes, and ApoE2-treated astrocytes secreted 3-fold more mature-BDNF (m-BDNF) than ApoE3-treated astrocytes. In contrast, ApoE4-treated cells secreted negligible amounts of m-BDNF or pro-BDNF. ApoE2 increased the level of intracellular pre-pro BDNF by 19.04 ± 6.68%, while ApoE4 reduced the pre-pro BDNF by 21.61 ± 5.9% compared to untreated cells. Similar results were also seen in ApoE2, ApoE3 or ApoE4 treated cells at 4 h. Together, these results indicate that an ApoE2 or ApoE3 mediated positive regulation of BDNF may be protective while ApoE4 related defects in BDNF processing could lead to AD pathophysiology. These interactions of the ApoE isoforms with BDNF may help explain the increased risk of AD associated with the ApoE4 isoform.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseApolipoproteins EAstrocytesAutopsyBrain-Derived Neurotrophic FactorCells, CulturedFemaleHippocampusHumansMaleMiddle AgedProtein IsoformsApolipoproteins EBrain-Derived Neurotrophic FactorProtein IsoformsAlzheimer’s disease (AD)Apolipoprotein E (ApoE)Brain-derived neurotrophic factor (BDNF)

Identifiers

PMID28569173
PMCPMC5452344
OpenAlexW2617318192

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.