ArticleFrontiers in cell and developmental biology2021
Exosomes From M2 Macrophage Promote Peritendinous Fibrosis Posterior Tendon Injury via the MiR-15b-5p/FGF-1/7/9 Pathway by Delivery of circRNA-Ep400.
Article in Frontiers in cell and developmental biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 22 citations in OpenAlex.
- The cellular basis of fibrotic tendon healing: now in higher definition.American journal of physiology. Cell physiology · 2026Review
- Epigenetic mechanisms in stem cell therapies for achilles tendinopathy.Frontiers in cell and developmental biology · 2025Review
- Recent developments in Achilles tendon risk-analyzing rupture factors for enhanced injury prevention and clinical guidance: Current implications of regenerative medicine.Journal of orthopaedic translation · 2024Review
- circ_0029463 promotes osteoclast differentiation by mediating miR-134-5p/Rab27a axis.Journal of orthopaedic surgery and research · 2024Article
- Identification of Periostin as a critical niche for myofibroblast dynamics and fibrosis during tendon healing.Matrix biology : journal of the International Society for Matrix Biology · 2024Article
- Fibroblast growth factor signaling in macrophage polarization: impact on health and diseases.Frontiers in immunology · 2024Review
- Circ_0005736 promotes tenogenic differentiation of tendon-derived stem cells through the miR-636/MAPK1 axis.Journal of orthopaedic surgery and research · 2023Article
- Therapeutic Potential of Exosomes in Tendon and Tendon-Bone Healing: A Systematic Review of Preclinical Studies.Journal of functional biomaterials · 2023Review
- Noncoding RNAs: Master Regulator of Fibroblast to Myofibroblast Transition in Fibrosis.International journal of molecular sciences · 2023Review
- Osteoimmune Interactions and Therapeutic Potential of Macrophage-Derived Small Extracellular Vesicles in Bone-Related Diseases.International journal of nanomedicine · 2023Review
- A "cell-free treatment" for tendon injuries: adipose stem cell-derived exosomes.European journal of medical research · 2022Review
- Application of Orthobiologics in Achilles Tendinopathy: A Review.Life (Basel, Switzerland) · 2022Review
- A Comprehensive Review on Function of miR-15b-5p in Malignant and Non-Malignant Disorders.Frontiers in oncology · 2022Review
- Circular RNAs and Their Role in Exosomes.Frontiers in oncology · 2022Review
- Disulfiram Suppressed Peritendinous Fibrosis Through Inhibiting Macrophage Accumulation and Its Pro-inflammatory Properties in Tendon Bone Healing.Frontiers in bioengineering and biotechnology · 2022Article
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Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Achilles tendon rupture prognosis is usually unsatisfactory. After the tendon is injured, it may not function properly because of the fibrotic healing response, which restrains tendon motion. Inflammatory monocytes and tissue-resident macrophages are indispensable regulators in tissue repair, fibrosis, and regeneration. Exosomes from macrophages are crucial factors in tissue microenvironment regulation following tissue injury. This study therefore aimed to clarify the roles of macrophage exosomes in tendon injury (TI) repair. The results show that macrophages play a role after TI. M1 macrophages were increased relative to peritendinous fibrosis after TI. High-throughput sequencing showed abnormal expression of circular RNAs (circRNAs) between exosomes from M2 and M0 macrophages. Among the abnormal expressions of circRNA, circRNA-Ep400 was significantly increased in M2 macrophage exosomes. The results also show that M2 macrophage-derived circRNA-Ep400-containing exosomes are important for promoting peritendinous fibrosis after TI. Bioinformatics and dual-luciferase reporting experiments confirmed that miR-15b-5p and fibroblast growth factor (FGF)-1/7/9 were downstream targets of circRNA-Ep400. High circRNA-Ep400-containing exosome treatment inhibited miR-15b-5p, but promoted FGF1/7/9 expression in both fibroblasts and tenocytes. Furthermore, high circRNA-Ep400-containing exosome treatment promoted fibrosis, proliferation, and migration in both fibroblasts and tenocytes. Taken together, the results show that M2 macrophage-derived circRNA-Ep400-containing exosomes promote peritendinous fibrosis after TI via the miR-15b-5p/FGF-1/7/9 pathway, which suggests novel therapeutics for tendon injury treatment.
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Registered trials
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