Evidence map›Paper›PMID 28827321›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Hsp90 activator Aha1 drives production of pathological tau aggregates.

Lindsey B Shelton, Jeremy D Baker, Dali Zheng, Leia E Sullivan, Parth K Solanki, Jack M Webster, Zheying Sun, Jonathan J Sabbagh, Bryce A Nordhues, John Koren and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

79 citing papers in PubMed, 128 citations in OpenAlex.

  1. Article
  2. Review
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  15. Review
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  20. Article

19 more citing papers are in PubMed but not listed here.

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

14 authors at 2 institutions in 1 country.

Lindsey B SheltonDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Jeremy D BakerDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Dali ZhengDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Leia E SullivanDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Parth K SolankiDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Jack M WebsterDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Zheying SunDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Jonathan J SabbaghDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Bryce A NordhuesDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
John KorenDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
Suman GhoshDepartment of Medicinal Chemistry, The University of Kansas, Lawrence, KS 66045.
Brian S J BlaggDepartment of Medicinal Chemistry, The University of Kansas, Lawrence, KS 66045.
Laura J BlairDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613; lblair@health.usf.edu.ORCID 0000-0002-4981-5564
Chad A DickeyDepartment of Molecular Medicine and Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613.
University of South Florida · USUniversity of Kansas · US

Funding

UC Irvine Alzheimer's Disease Research Center Induced Pluripotent Stem Cell CoreP50AG016573 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI LAFERLA, FRANK M · 2000 to 2019
$37.0M
The Hsp90 cochaperone FKBP51 regulates tau structure and functionR01NS073899 · NINDS · UNIVERSITY OF SOUTH FLORIDA · PI Laura J Blair · 2011 to 2026
$6.9M
Modeling stress-related psychopathology through FKBP5 manipulationR01MH103848 · NIMH · UNIVERSITY OF SOUTH FLORIDA · PI BLAIR, LAURA J · 2014 to 2018
$1.9M
Hsp70_DNAJ interface as a drug target for Alzheimers disease and TBII01BX001637 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI BICKFORD, PAULA C · 2013 to 2017
–
UPR as a Neuronal Death Mediator in Alzheimer's DiseaseI01BX002475 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI KANG, DAVID E · 2015 to 2019
–
Targeting Tau for TBII01BX002947 · VA · JAMES A. HALEY VA MEDICAL CENTER · PI KANG, DAVID E · 2017 to 2020
–
BLRD VA I01 BX001637BLRD VA I01 BX002475BLRD VA I01 BX002947NIA NIH HHS P50 AG016573NIMH NIH HHS R01 MH103848NINDS NIH HHS R01 NS073899
6 · The paper itself

Abstract

The microtubule-associated protein tau (MAPT, tau) forms neurotoxic aggregates that promote cognitive deficits in tauopathies, the most common of which is Alzheimer's disease (AD). The 90-kDa heat shock protein (Hsp90) chaperone system affects the accumulation of these toxic tau species, which can be modulated with Hsp90 inhibitors. However, many Hsp90 inhibitors are not blood-brain barrier-permeable, and several present associated toxicities. Here, we find that the cochaperone, activator of Hsp90 ATPase homolog 1 (Aha1), dramatically increased the production of aggregated tau. Treatment with an Aha1 inhibitor, KU-177, dramatically reduced the accumulation of insoluble tau. Aha1 colocalized with tau pathology in human brain tissue, and this association positively correlated with AD progression. Aha1 overexpression in the rTg4510 tau transgenic mouse model promoted insoluble and oligomeric tau accumulation leading to a physiological deficit in cognitive function. Overall, these data demonstrate that Aha1 contributes to tau fibril formation and neurotoxicity through Hsp90. This suggests that therapeutics targeting Aha1 may reduce toxic tau oligomers and slow or prevent neurodegenerative disease progression.

Indexed as

Alzheimer DiseaseAnimalsBrainCell LineDisease Models, AnimalFemaleHSP90 Heat-Shock ProteinsHumansMaleMiceMice, TransgenicMolecular ChaperonesProtein AggregatesProtein Aggregation, PathologicalTauopathiestau ProteinsAHSA1 protein, humanAhsa1 protein, mouseHSP90 Heat-Shock ProteinsMAPT protein, humanMapt protein, mouseMolecular ChaperonesProtein Aggregatestau ProteinsAha1Alzheimer’s diseasechaperonesHsp90tau oligomers

Identifiers

PMID28827321
PMCPMC5594679
OpenAlexW2747080631

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.