Cited by 18Amyotrophic Lateral Sclerosis ResearchGenetic Neurodegenerative DiseasesUbiquitin and proteasome pathways

Linear Polyubiquitin Chain Modification of TDP-43-Positive Neuronal Cytoplasmic Inclusions in Amyotrophic Lateral Sclerosis

Nakayama, Yoshiaki, Tsuji, Kazumi, Ayaki, Takashi, Mori, Megumi, Tokunaga, Fuminori, Ito, Hidefumi·2020·Journal of Neuropathology & Experimental Neurology

Abstract

Neuronal cytoplasmic inclusions (NCIs) containing TAR DNA-binding protein of 43 kDa (TDP-43) are pathological hallmarks of amyotrophic lateral sclerosis (ALS) and are known to be ubiquitinated. Eight linkage types of polyubiquitin chains have been reported, each type of chain exerting different intracellular actions. The linkage type of polyubiquitin chain involved in the formation of NCIs in sporadic ALS (sALS), however, has not yet been elucidated. We performed immunohistochemical study of the spinal cords of 12 patients with sALS and on those of 6 control subjects. Virtually all ubiquitinated NCIs were immunolabeled with lysine 48-linked polyubiquitin chain (K48-Ub). Although the majority of NCIs were triple-immunoreactive for K48-Ub, linear polyubiquitin chain (L-Ub), and lysine 63-linked polyubiquitin chain (K63-Ub), thin parts of K48-Ub-immunopositive NCIs were not labeled for K63-Ub or L-Ub. We also detected HOIP and SHARPIN, components of linear ubiquitin chain assembly complex, colocalizing with L-Ub on NCIs. Moreover, the immunosignal of optineurin, an autophagy receptor working with L-Ub, and that of activated NF-κB p65, were observed to be colocalizing with L-Ub on certain parts of NCIs. The L-Ub modification of TDP-43-positive NCIs may function as an inducer of autophagic clearance of NCIs, neuroinflammation, and neurodegeneration in sALS.

Integrity signals

Registry

Crossref · 10.1093/jnen/nlz135

Cites

40 of 40 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?

  • The LUBAC is reportedly involved in autophagy, and linear ubiquitin chain modifications of TDP-43-positive neuronal cytoplasmic inclusions have been described as potential inducers of autophagic clearance.

    “The LUBAC is also reportedly involved in autophagy, and linear ubiquitin chain modifications of TDP-43-positive neuronal cytoplasmic inclusions have been described as potential inducers of autophagic clearance31.”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Nakayama, Y., Tsuji, K., Ayaki, T., Mori, M., Tokunaga, F., & Ito, H.
Affiliations
  • Wakayama Medical University (JP)
  • Kyoto University (JP)
  • Osaka City University (JP)
Corresponding author
Ito, Hidefumi
Venue
Journal of Neuropathology & Experimental Neurology
Published
2019-12-16
Volume
79
Issue
3
Pages
256-265
ISSN
  • 0022-3069 (ISSN-L)
  • 1554-6578
OpenAlex
W3000016720
Cited by
18
References
40
Citations by year
2025: 2 · 2024: 2 · 2023: 3 · 2022: 5 · 2021: 3 · 2020: 3
FWCI
1.86
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neuropathology & Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (18H02743, 16K09729)
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
Keywords
amyotrophic lateral sclerosis, TDP-43, neuronal cytoplasmic inclusions, K48-linked polyubiquitin, K63-linked polyubiquitin, LUBAC, HOIP, SHARPIN, optineurin, autophagy, NF-κB p65, neuroinflammation, neurodegeneration, spinal cord
MeSH terms
Aged, Aged, 80 and over, Amyotrophic Lateral Sclerosis, Inclusion Bodies, DNA-Binding Proteins, Humans, Middle Aged, Motor Neurons, Spinal Cord, Polyubiquitin, Ubiquitination, Ubiquitinated Proteins

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