Cited by 81Hematopoietic Stem Cell TransplantationGenetics, Aging, and Longevity in Model OrganismsRedox biology and oxidative stress

Thioredoxin-interacting protein regulates haematopoietic stem cell ageing and rejuvenation by inhibiting p38 kinase activity

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Jung, Haiyoung, Kim, Dong Oh, Byun, Jae-Eun, Kim, Won Sam, Kim, Mi Jeong, Song, Hae Young, Kim, Young Kwan, Kang, Du-Kyeong +7 more·2016·Nature Communications

Abstract

Ageing is a natural process in living organisms throughout their lifetime, and most elderly people suffer from ageing-associated diseases. One suggested way to tackle such diseases is to rejuvenate stem cells, which also undergo ageing. Here we report that the thioredoxin-interacting protein (TXNIP)-p38 mitogen-activated protein kinase (p38) axis regulates the ageing of haematopoietic stem cells (HSCs), by causing a higher frequency of long-term HSCs, lineage skewing, a decrease in engraftment, an increase in reactive oxygen species and loss of Cdc42 polarity. TXNIP inhibits p38 activity via direct interaction in HSCs. Furthermore, cell-penetrating peptide (CPP)-conjugated peptide derived from the TXNIP-p38 interaction motif inhibits p38 activity via this docking interaction. This peptide dramatically rejuvenates aged HSCs in vitro and in vivo. Our findings suggest that the TXNIP-p38 axis acts as a regulatory mechanism in HSC ageing and indicate the potent therapeutic potential of using CPP-conjugated peptide to rejuvenate aged HSCs.

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Authors
Jung, H., Kim, D. O., Byun, J.-E., Kim, W. S., Kim, M. J., Song, H. Y., Kim, Y. K., Kang, D.-K., Park, Y.-J., Kim, T.-D., Yoon, S. R., Lee, H. G., Choi, E.-J., Min, S.-H., & Choi, I.
Affiliations
  • Korea Research Institute of Bioscience and Biotechnology (KR)
  • Chungbuk National University (KR)
  • Scripps Korea Antibody Institute (KR)
  • Asan Medical Center (KR)
  • Daegu-Gyeongbuk Medical Innovation Foundation (KR)
Corresponding author
  • Jung, Haiyoung
  • Choi, Inpyo
Venue
Nature Communications
Published
2016-12-08
Volume
7
Issue
1
Pages
13674-13674
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2559958687
Cited by
81
References
50
Citations by year
2026: 3 · 2025: 6 · 2024: 8 · 2023: 10 · 2022: 13 · 2021: 13 · 2020: 6 · 2019: 11 · 2018: 9 · 2017: 2
FWCI
6.98
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • KRIBB Repository (submittedVersion)
Funders
Korea Research Institute of Bioscience and Biotechnology (A121934)
Topics
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
TXNIP, p38 MAPK, stem cell rejuvenation, cell-penetrating peptides, protein-protein interaction, reactive oxygen species, engraftment
MeSH terms
Animals, Carrier Proteins, Female, Hematopoietic Stem Cells, Male, Thioredoxins, Cellular Senescence, MAP Kinase Signaling System, p38 Mitogen-Activated Protein Kinases, Mice

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