Cited by 197Endoplasmic Reticulum Stress and DiseaseAlzheimer's disease research and treatmentsParkinson's Disease Mechanisms and Treatments

The unfolded protein response is activated in disease-affected brain regions in progressive supranuclear palsy and Alzheimer’s disease

Open access
Stutzbach, Lauren D, Xie, Sharon X, Naj, Adam C, Albin, Roger, Gilman, Sid, PSP Genetics Study Group, Lee, Virginia M Y, Trojanowski, John Q +2 more·2013·Acta Neuropathologica Communications

Abstract

Background: Progressive supranuclear palsy (PSP) is a neurodegenerative disorder pathologically characterized by intracellular tangles of hyperphosphorylated tau protein distributed throughout the neocortex, basal ganglia, and brainstem. A genome-wide association study identified EIF2AK3 as a risk factor for PSP. EIF2AK3 encodes PERK, part of the endoplasmic reticulum’s (ER) unfolded protein response (UPR). PERK is an ER membrane protein that senses unfolded protein accumulation within the ER lumen. Recently, several groups noted UPR activation in Alzheimer’s disease (AD), Parkinson’s disease (PD), amyotrophic lateral sclerosis, multiple system atrophy, and in the hippocampus and substantia nigra of PSP subjects. Here, we evaluate UPR PERK activation in the pons, medulla, midbrain, hippocampus, frontal cortex and cerebellum in subjects with PSP, AD, and in normal controls. Results: We found UPR activation primarily in disease-affected brain regions in both disorders. In PSP, the UPR was primarily activated in the pons and medulla and to a much lesser extent in the hippocampus. In AD, the UPR was extensively activated in the hippocampus. We also observed UPR activation in the hippocampus of some elderly normal controls, severity of which positively correlated with both age and tau pathology but not with Aβ plaque burden. Finally, we evaluated EIF2AK3 coding variants that influence PERK activation. We show that a haplotype associated with increased PERK activation is genetically associated with increased PSP risk. Conclusions: The UPR is activated in disease affected regions in PSP and the genetic evidence shows that this activation increases risk for PSP and is not a protective response.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1186/2051-5960-1-31

Cites

59 of 59 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

1 retracted

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Stutzbach, L. D., Xie, S. X., Naj, A. C., Albin, R., Gilman, S., PSP Genetics Study Group, Lee, V. M. Y., Trojanowski, J. Q., Devlin, B., & Schellenberg, G. D.
Affiliations
  • University of Pennsylvania (US)
  • University of Michigan (US)
  • University of Pittsburgh (US)
Corresponding author
Schellenberg, Gerard D
Venue
Acta Neuropathologica Communications
Published
2013-07-06
Volume
1
Issue
1
Pages
31-31
ISSN
2051-5960 (ISSN-L)
OpenAlex
W2106758408
Cited by
197
References
59
Citations by year
2026: 10 · 2025: 9 · 2024: 17 · 2023: 23 · 2022: 20 · 2021: 11 · 2020: 34 · 2019: 14 · 2018: 16 · 2017: 14 · 2016: 10 · 2015: 10 · 2014: 8 · 2013: 1
FWCI
5.61
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Acta Neuropathologica Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • D-Scholarship@Pitt (University of Pittsburgh) (acceptedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Michael J. Fox Foundation for Parkinson's Research (U24 NS072026, 05-901, 211002, P30 AG19610)
  • University of Michigan
  • Arizona Department of Health Services (P30 AG19610, U24 NS072026, 05-901, 211002, Contract 211002)
  • National Institute for Health and Care Research (NF-SI-0512-10033)
  • Arizona Biomedical Research Commission (P30 AG19610, 05–901, Contracts 4001, 0011, 05‐901 and 1001, U24 NS072026, 4001, 0011, 05-901, and 1001, 211002)
  • National Institutes of Health (U24NS07-2026, 05-901, AG 10 124, 1f31ag043254-01, 211002, AG19610, AG017586)
  • National Institute on Aging (211002, P30-AG-19610, F31 AG043254, 1F31AG043254, P50AG005131, AG-19610, P30AG010124, P01AG017586, R37AG011762, AG-10124, R37 AG11762, P30AG019610, 05-901, AG-017586, P50AG005134, P30AG062421)
  • National Institute of Neurological Disorders and Stroke (NS072026, 211002, U24NS072026, 05-901, P30 AG19610)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
unfolded protein response, PERK, progressive supranuclear palsy, Alzheimer's disease, tau pathology, endoplasmic reticulum stress, passive optical networks, medulla, hippocampus, genetic risk, amyloid plaques
MeSH terms
Aged, Aging, Alzheimer Disease, Brain, Female, Haplotypes, Humans, Male, Middle Aged, Supranuclear Palsy, Progressive, tau Proteins, eIF-2 Kinase, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Unfolded Protein Response

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review