Cited by 28Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchMitochondrial Function and Pathology

TUFM is involved in Alzheimer’s disease-like pathologies that are associated with ROS

Zhong, Bi‐Rou, Zhou, Gui‐Feng, Song, Li, Wen, Qi‐Xin, Deng, Xiao‐Juan, Ma, Yuan‐Lin, Hu, Li‐Tian, Chen, Guo‐Jun·2021·The FASEB Journal

Abstract

Mitochondrial Tu translation elongation factor (TUFM or EF-Tu) is part of the mitochondrial translation machinery. It is reported that TUFM expression is reduced in the brain of Alzheimer's disease (AD), suggesting that TUFM might play a role in the pathophysiology. In this study, we found that TUFM protein level was decreased in the hippocampus and cortex especially in the aged APP/PS1 mice, an animal model of AD. In HEK cells that stably express full-length human amyloid-β precursor protein (HEK-APP), TUFM knockdown or overexpression increased or reduced the protein levels of β-amyloid protein (Aβ) and β-amyloid converting enzyme 1 (BACE1), respectively. TUFM-mediated reduction of BACE1 was attenuated by translation inhibitor cycloheximide (CHX) or α-[2-[4-(3,4-Dichlorophenyl)-2-thiazolyl]hydrazinylidene]-2-nitro-benzenepropanoic acid (4EGI1), and in cells overexpressing BACE1 constructs deleting the 5' untranslated region (5'UTR). TUFM silencing increased the half-life of BACE1 mRNA, suggesting that RNA stability was affected by TUFM. In support, transcription inhibitor Actinomycin D (ActD) and silencing of nuclear factor κB (NFκB) failed to abolish TUFM-mediated regulation of BACE1 protein and mRNA. We further found that the mitochondria-targeted antioxidant TEMPO diminished the effects of TUFM on BACE1, suggesting that reactive oxygen species (ROS) played an important role. Indeed, cellular ROS levels were affected by TUFM knockdown or overexpression, and TUFM-mediated regulation of apoptosis and Tau phosphorylation at selective sites was attenuated by TEMPO. Collectively, TUFM protein levels were decreased in APP/PS1 mice. TUFM is involved in AD pathology by regulating BACE1 translation, apoptosis, and Tau phosphorylation, in which ROS plays an important role.

Integrity signals

Registry

Crossref · 10.1096/fj.202002461r

Cites

63 of 63 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Zhong, B., Zhou, G., Song, L., Wen, Q., Deng, X., Ma, Y., Hu, L., & Chen, G.
Affiliations
  • The Affiliated Yongchuan Hospital of Chongqing Medical University (CN)
  • Department of Neurology the First Affiliated Hospital of Chongqing Medical University Chongqing Key Laboratory of Neurology Chongqing China <!--Query ID="q2" Text="AUTHOR: Please check and confirm whether all the author names, affiliations, and correspondence details have been set correctly."-->
  • North Sichuan Medical University (CN)
Venue
The FASEB Journal
Publisher
Wiley
Published
2021-03-28
Volume
35
Issue
5
Pages
e21445-e21445
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W3150421191
Cited by
28
References
63
Citations by year
2026: 4 · 2025: 5 · 2024: 8 · 2023: 6 · 2022: 3 · 2021: 2
FWCI
2.98
Type
journal article
Language
en
Open access
closed
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (81971030)
  • Chongqing Science and Technology Commission (cstc2018jcyjAX0067)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
TUFM, elongation factor Tu, Alzheimer's disease, mitochondrial translation, BACE1, amyloid-beta, reactive oxygen species, tempo, apoptosis, tau phosphorylation, APP/PS1 mice, RNA stability, 5' untranslated region, NF-κB, cycloheximide, 4EGI-1
MeSH terms
Alzheimer Disease, Animals, Disease Models, Animal, Humans, Mice, Transgenic, Mitochondria, Peptide Elongation Factor Tu, Phosphorylation, Amyloid beta-Protein Precursor, Reactive Oxygen Species, Mice, Presenilin-1, Amyloid Precursor Protein Secretases

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