Evidence map›Paper›PMID 22275252›Full record

ArticleAnnals of neurology2012

Transcriptional regulation of β-secretase-1 by 12/15-lipoxygenase results in enhanced amyloidogenesis and cognitive impairments.

Jin Chu, Jia-Min Zhuo, Domenico Praticò

RetractedOpen access · greenAbstract readComparative StudyRetracted Publication
In one paragraph

Article in Annals of neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. Neurochemical Research of LOXBlock-1 and ZnSOBiological trace element research · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Jin ChuDepartment of Pharmacology, Temple University School of Medicine, Philadelphia, PA 19140, USA.
Jia-Min Zhuo
Domenico Praticò
Temple University · US

Funding

The Neurobiology of 5-LipoxygenaseR01AG033568 · NIA · TEMPLE UNIV OF THE COMMONWEALTH · PI PRATICO, DOMENICO · 2010 to 2014
$1.5M
The neurobiology of 12/15 lipoxygenaseR01AG022203 · NIA · UNIVERSITY OF PENNSYLVANIA · PI PRATICO, DOMENICO · 2004 to 2007
$1.0M
NIA NIH HHS AG33568NIA NIH HHS R01 AG022203NIA NIH HHS R01 AG033568
6 · The paper itself

Abstract

objective12/15-Lipoxygenase (12/15-LO) is an enzyme widely distributed in the central nervous system, and it has been involved in the neurobiology of Alzheimer disease (AD). However, the mechanism involved remains elusive.

methodsWe investigated the molecular mechanism by which 12/15-LO regulates amyloid β (Aβ)/Aβ precursor protein (APP) metabolism in vivo and in vitro by genetic and pharmacologic approaches.

resultsHere we show that overexpression of 12/15-LO leads to increased levels of β-secretase-1 (BACE1) mRNA and protein, a significant elevation in Aβ levels and deposition, and a worsening of memory deficits in AD transgenic mice. In vitro and in vivo studies demonstrate that 12/15-LO regulates BACE1 mRNA expression levels via the activation of the transcription factor Sp1. Thus, 12/15-LO-overexpressing mice had elevated levels of Sp1 and BACE1, whereas 12/15-LO-deficient mice had reduced levels of both. Preventing Sp1 activation by pharmacologic inhibition or dominant-negative mutant blocks the 12/15-LO-dependent elevation of Aβ and BACE1 levels.

interpretationOur findings demonstrate a novel pathway by which 12/15-LO increases the amyloidogenic processing of APP through a Sp1-mediated transcriptional control of BACE1 levels that could have implications for AD pathogenesis and therapy.

Indexed as

Amyloid Precursor Protein SecretasesAnimalsArachidonate 12-LipoxygenaseArachidonate 15-LipoxygenaseAspartic Acid EndopeptidasesCell Line, TumorCognition DisordersFemaleHumansMiceMice, Inbred C57BLMice, TransgenicPlaque, AmyloidRandom AllocationTranscription, Genetic12-15-lipoxygenaseAmyloid Precursor Protein SecretasesArachidonate 12-LipoxygenaseArachidonate 15-LipoxygenaseAspartic Acid EndopeptidasesBace1 protein, mouse

Identifiers

PMID22275252
PMCPMC3270901
OpenAlexW2075830396

What OpenQuestion holds

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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.