Evidence map›Paper›PMID 22353755›Full record

ArticleBrain research2012

Intraperitoneal injection of JNK-specific inhibitor SP600125 inhibits the expression of presenilin-1 and Notch signaling in mouse brain without induction of apoptosis.

Moshiur Rahman, Zhijie Zhang, Avani A Mody, Dong-Ming Su, Hriday K Das

Open access · greenAbstract read
In one paragraph

Article in Brain research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. DKK2 contributes to context discrimination and adult hippocampal neurogenesis by suppressing Wnt/PCP signaling.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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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 2 institutions in 1 country.

Moshiur RahmanDepartment of Molecular Biology & Immunology, University of North Texas Health Science Center at Fort Worth, 3500 Camp Bowie Boulevard, Fort Worth, TX 76123, USA.
Zhijie Zhang
Avani A Mody
Dong-Ming Su
Hriday K Das
University of North Texas Health Science Center · USUniversity of North Texas · US

Funding

Regulation of Human Presenilin-1R01AG018452 · NIA · UNIVERSITY OF NORTH TEXAS HLTH SCI CTR · PI DAS, HRIDAY K · 2001 to 2004
$909k
lymphostromal interactions in the thymic agingR21AG031880 · NIA · UNIVERSITY OF TEXAS HLTH CTR AT TYLER · PI SU, DONG-MING · 2009 to 2010
$318k
NIA NIH HHS R01 AG018452NIA NIH HHS R21 AG031880NIA NIH HHS R21AG031880
6 · The paper itself

Abstract

Presenilin-1 (PS1) is a multifunctional protein involved in many cellular functions including the processing of type 1 membrane proteins such as β-amyloid precursor protein (APP) and Notch 1 receptor. PS1 acts as the catalytic subunit of the γ-secretase complex, and participates in Notch 1 processing to release Notch intracellular domain (NICD) in the cytoplasm. NICD subsequently migrates to the nucleus and causes Notch signaling by increasing the expression of the Hes1 gene. We have previously shown that inhibition of basal activity of c-jun-NH2-terminal kinase (JNK) with JNK-specific inhibitor SP600125 represses the expression of PS1 and γ-secretase activity by increasing p53 level in SK-N-SH cell line in vitro (Lee and Das, 2008, 2010). However, it is largely unknown whether PS1 can be effectively suppressed in vivo in adult mouse brains. In this report we showed that intraperitoneal (i.p) injection of JNK-specific inhibitor SP600125 decreased p-JNK level, and reduced PS1 expression by increasing p53 level in adult mouse brains. We also showed that suppression of PS1 expression by SP600125 reduced γ-secretase activity which decreased Notch 1 processing to reduce NICD in mouse brains. Furthermore, inhibition of Notch 1 processing by SP600125 decreased Notch 1 signaling by reducing the expression of the NICD target Hes1 gene in mouse brains without induction of apoptosis. These results provide insights for further study on PS1-mediated reduction of Notch 1 and APP processing for the treatment of Alzheimer's disease.

Indexed as

Amyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAnimalsAnthracenesApoptosisBlotting, WesternBrainBrain ChemistryEnzyme InhibitorsFluorescent Antibody TechniqueGenes, p53Injections, IntraperitonealIn Situ Nick-End LabelingJNK Mitogen-Activated Protein KinasesMaleMiceAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAnthracenesEnzyme InhibitorsJNK Mitogen-Activated Protein KinasesPresenilin-1pyrazolanthroneReceptor, Notch1RNA, Messenger

Identifiers

PMID22353755
PMCPMC3310381
OpenAlexW1984568103

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.