Cited by 444Extracellular vesicles in diseaseMesenchymal stem cell researchBone fractures and treatments

Mesenchymal Stem Cell-Derived Exosomes Promote Fracture Healing in a Mouse Model

Open access
Furuta, Taisuke, Miyaki, Shigeru, Ishitobi, Hiroyuki, Ogura, Toshihiko, Kato, Yoshio, Kamei, Naosuke, Miyado, Kenji, Higashi, Yukihito +1 more·2016·Stem Cells Translational Medicine

Abstract

Paracrine signaling by bone-marrow-derived mesenchymal stem cells (MSCs) plays a major role in tissue repair. Although the production of regulatory cytokines by MSC transplantation is a critical modulator of tissue regeneration, we focused on exosomes, which are extracellular vesicles that contain proteins and nucleic acids, as a novel additional modulator of cell-to-cell communication and tissue regeneration. To address this, we used radiologic imaging, histological examination, and immunohistochemical analysis to evaluate the role of exosomes isolated from MSC-conditioned medium (CM) in the healing process in a femur fracture model of CD9−/− mice, a strain that is known to produce reduced levels of exosomes. We found that the bone union rate in CD9−/− mice was significantly lower than wild-type mice because of the retardation of callus formation. The retardation of fracture healing in CD9−/− mice was rescued by the injection of exosomes, but this was not the case after the injection of exosomes-free conditioned medium (CM-Exo). The levels of the bone repair-related cytokines, monocyte chemotactic protein-1 (MCP-1), MCP-3, and stromal cell-derived factor-1 in exosomes were low compared with levels in CM and CM-Exo, suggesting that bone repair may be in part mediated by other exosome components, such as microRNAs. These results suggest that exosomes in CM facilitate the acceleration of fracture healing, and we conclude that exosomes are a novel factor of MSC paracrine signaling with an important role in the tissue repair process. Significance: This work focuses on exosomes, which are extracellular vesicles, as a novel additional modulator of cell-to-cell communication. This study evaluated the role of exosomes isolated from mesenchymal stem cell (MSC)-conditioned medium (MSC-CM) in the fracture-healing process of CD9−/− mice, a strain that is known to produce reduced levels of exosomes. Retardation of fracture healing in CD9−/− mice was rescued by the injection of MSC exosomes, but this was not the case after the injection of exosome-free CM. This study finds that MSC exosomes are a novel factor of MSC paracrine signaling, with an important role in the tissue repair process.

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 · 10.5966/sctm.2015-0285

Cites

60 of 60 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

Flagged first, then by citations

Research works printed but not linked: 3

  1. Théry C, Ostrowski M, Segura E. Mem- brane vesicles as conveyors of immune re- sponses. Nat Rev Immunol 2009;9:581-593.
  2. Mathivanan S, Ji H, Simpson RJ. Exo- somes: Extracellular organelles important in in- tercellular communication. J Proteomics 2010; 73:1907-1920.
  3. Kato T, Miyaki S, Ishitobi H et al. Exo- somes from IL-1b stimulated synovial fibro- blasts induce osteoarthritic changes in articular chondrocytes. Arthritis Res Ther 2014;16:R163.

Cited by

Sorted by citations

Authors
Furuta, T., Miyaki, S., Ishitobi, H., Ogura, T., Kato, Y., Kamei, N., Miyado, K., Higashi, Y., & Ochi, M.
Affiliations
  • Hiroshima University (JP)
  • Hiroshima University Hospital (JP)
  • National Institute of Advanced Industrial Science and Technology (JP)
  • National Center For Child Health and Development (JP)
Corresponding author
Furuta, Taisuke
Venue
Stem Cells Translational Medicine
Published
2016-07-26
Volume
5
Issue
12
Pages
1620-1630
ISSN
  • 2157-6564 (ISSN-L)
  • 2157-6580
OpenAlex
W2490529699
Cited by
444
References
60
Citations by year
2026: 18 · 2025: 35 · 2024: 41 · 2023: 44 · 2022: 52 · 2021: 90 · 2020: 64 · 2019: 44 · 2018: 37 · 2017: 17 · 2016: 1
FWCI
17.16
Type
journal article
Language
en
Open access
Locations
  • Stem Cells Translational Medicine (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Hiroshima University Acedemic Information Repository (Hiroshima University) (submittedVersion)
Funders
  • Ministry of Education, Culture, Sports, Science and Technology (21249079)
  • Japan Society for the Promotion of Science (26293363, 16K21192, 15H04959, 24689057, 14J05729, 21249079, 15H04365)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Epidemiology › Bone fractures and treatments
Keywords
mesenchymal stem cells, exosomes, fracture healing, paracrine signaling, extracellular vesicles, CD9, conditioned medium, callus formation, bone regeneration, microRNA, CXCL12, MCP-1, tissue regeneration
MeSH terms
Animals, Body Weight, Disease Models, Animal, Gene Expression Regulation, Humans, Male, Mice, Inbred C57BL, Tibia, Bone Density, Cytokines, Culture Media, Conditioned, Fracture Healing, Gene Expression Profiling, MicroRNAs, Cell Line, Tumor, Exosomes, Mesenchymal Stem Cells, Tetraspanin 29

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