Cited by 115Alzheimer's disease research and treatmentsUbiquitin and proteasome pathwaysNeuroinflammation and Neurodegeneration Mechanisms

A tripartite motif protein TRIM11 binds and destabilizes Humanin, a neuroprotective peptide against Alzheimer's disease‐relevant insults

Niikura, Takako, Hashimoto, Yuichi, Tajima, Hirohisa, Ishizaka, Miho, Yamagishi, Yohichi, Kawasumi, Masaoki, Nawa, Mikiro, Terashita, Kenzo +2 more·2003·European Journal of Neuroscience

Abstract

Humanin (HN) is a newly identified neuroprotective peptide that specifically suppresses Alzheimer's disease (AD)‐related neurotoxicity. HN peptide has been detected in the human AD brain as well as in mouse testis and colon by immunoblot and immunohistochemical analyses. By means of yeast two‐hybrid screening, we identified TRIM11 as a novel HN‐interacting protein. TRIM11, which is a member of protein family containing a tripartite motif (TRIM), is composed of a RING finger domain, which is a putative E3 ubiquitin ligase, a B‐box domain, a coiled‐coil domain and a B30.2 domain. Deletion of the B30.2 domain in TRIM11 abolished the interaction with HN, whereas the B30.2 domain alone did not interact with HN. For their interaction, at least the coiled‐coil domain was indispensable together with the B30.2 domain. The intracellular level of glutathione S‐transferase‐fused or EGFP‐fused HN peptides or plain HN was drastically reduced by the coexpression of TRIM11. Disruption of the RING finger domain by deleting the first consensus cysteine or proteasome inhibitor treatment significantly diminished the effect of TRIM11 on the intracellular level of HN. These results suggest that TRIM11 plays a role in the regulation of intracellular HN level through ubiquitin‐mediated protein degradation pathways.

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Crossref · 10.1046/j.1460-9568.2003.02553.x

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  • TRIM11, another member of the TRIM family, was shown to bind to and destabilize humanin, a neuroprotective peptide that suppresses AD-related neurotoxicity.

    “Although there are no reports relating TRIM22 with AD, TRIM11, another member of this family, was shown to bind to and destabilize humanin, a neuroprotective peptide that suppresses AD-related neurotoxicity.49”

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Authors
Niikura, T., Hashimoto, Y., Tajima, H., Ishizaka, M., Yamagishi, Y., Kawasumi, M., Nawa, M., Terashita, K., Aiso, S., & Nishimoto, I.
Affiliations
Keio University (JP)
Corresponding author
Niikura, Takako
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2003-03
Volume
17
Issue
6
Pages
1150-1158
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2076514957
Cited by
115
References
38
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 5 · 2022: 4 · 2021: 5 · 2020: 7 · 2019: 4 · 2018: 3 · 2017: 6 · 2016: 6 · 2015: 2 · 2014: 6 · 2013: 4 · 2012: 4
FWCI
4.59
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
TRIM11, humanin, Alzheimer's disease, neuroprotection, protein-protein interaction, B30.2 domain, coiled-coil domain, RING E3 ubiquitin ligase, ubiquitin-mediated proteolysis, neurotoxicity, protein stability
MeSH terms
Alzheimer Disease, Animals, Carrier Proteins, Membrane Proteins, Proteins, Yeasts, Immunoblotting, Polymerase Chain Reaction, Neuroprotective Agents, Two-Hybrid System Techniques, Ubiquitin, Intracellular Signaling Peptides and Proteins, Adaptor Proteins, Signal Transducing, Mice

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