Evidence map›Paper›PMID 28826672›Full record

ArticleMolecular cell2017

Delta-Secretase Phosphorylation by SRPK2 Enhances Its Enzymatic Activity, Provoking Pathogenesis in Alzheimer's Disease.

Zhi-Hao Wang, Pai Liu, Xia Liu, Fredric P Manfredsson, Ivette M Sandoval, Shan Ping Yu, Jian-Zhi Wang, Keqiang Ye

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cell, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% 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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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

8 authors at 4 institutions in 2 countries.

Zhi-Hao WangDepartment of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; Department of Pathophysiology, Key Laboratory of Ministry of Education of Neurological Diseases, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Pai LiuEmory College of Arts and Sciences, Emory University, Atlanta, GA 30322, USA.
Xia LiuDepartment of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA.
Fredric P ManfredssonDepartment of Translational Science and Molecular Medicine, Michigan State University, 333 Bostwick Avenue NE, Grand Rapids, MI 49503, USA.
Ivette M SandovalDepartment of Translational Science and Molecular Medicine, Michigan State University, 333 Bostwick Avenue NE, Grand Rapids, MI 49503, USA.
Shan Ping YuDepartment of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322, USA.
Jian-Zhi WangDepartment of Pathophysiology, Key Laboratory of Ministry of Education of Neurological Diseases, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Co-innovation Center of Neuroregeneration, Nantong 226001, China. Electronic address: wangjz@mails.tjmu.edu.cn.
Keqiang YeDepartment of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA; Translational Center for Stem Cell Research, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China. Electronic address: kye@emory.edu.
Emory University · USMichigan State University · USHuazhong University of Science and Technology · CNTongji Hospital · CN

Funding

Molecular Regulation of AEP during AgeingRF1AG051538 · NIA · EMORY UNIVERSITY · PI YE, KEQIANG · 2016 to 2016
$3.4M
NIA NIH HHS RF1 AG051538
6 · The paper itself

Abstract

Delta-secretase, a lysosomal asparagine endopeptidase (AEP), simultaneously cleaves both APP and tau, controlling the onset of pathogenesis of Alzheimer's disease (AD). However, how this protease is post-translationally regulated remains unclear. Here we report that serine-arginine protein kinase 2 (SRPK2) phosphorylates delta-secretase and enhances its enzymatic activity. SRPK2 phosphorylates serine 226 on delta-secretase and accelerates its autocatalytic cleavage, leading to its cytoplasmic translocation and escalated enzymatic activities. Delta-secretase is highly phosphorylated in human AD brains, tightly correlated with SRPK2 activity. Overexpression of a phosphorylation mimetic (S226D) in young 3xTg mice strongly promotes APP and tau fragmentation and facilitates amyloid plaque deposits and neurofibrillary tangle (NFT) formation, resulting in cognitive impairment. Conversely, viral injection of the non-phosphorylatable mutant (S226A) into 5XFAD mice decreases APP and tau proteolytic cleavage, attenuates AD pathologies, and reverses cognitive defects. Our findings support that delta-secretase phosphorylation by SRPK2 plays a critical role in aggravating AD pathogenesis.

Indexed as

Protein Processing, Post-TranslationalAlzheimer DiseaseAmyloid Precursor Protein SecretasesAnimalsBehavior, AnimalBrainCognitionDisease Models, AnimalGenetic Predisposition to DiseaseHEK293 CellsHeLa CellsHumansMice, Inbred C57BLMice, TransgenicMutationNeurofibrillary TanglesAmyloid Precursor Protein SecretasesMAPT protein, humanProtein Serine-Threonine KinasesSerineSRPK2 protein, humantau ProteinsAlzheimer’s diseasepost-translational regulationprotease

Identifiers

PMID28826672
PMCPMC5753427
OpenAlexW2747562354

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.