Evidence map›Paper›PMID 39687464›Full record

ArticleBurns & trauma2024

Epidermal stem cell-derived exosomes improve wound healing by promoting the proliferation and migration of human skin fibroblasts.

Deni Kang, Xiaoxiang Wang, Wentao Chen, Lujia Mao, Weiqiang Zhang, Yan Shi, Julin Xie, Ronghua Yang

Abstract read
In one paragraph

Article in Burns & trauma, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
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  10. Review
  11. Plant-based Exosome Injections for Skin Wound Healing: Experimental Study.Plastic and reconstructive surgery. Global open · 2025
    Article
  12. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Deni KangDepartment of Burn and Plastic Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, 1 Panfu Road, Yuexiu District, Guangzhou City, Guangdong Province, 510180, China.
Xiaoxiang WangDepartment of Burns, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Second Road, Yuexiu District, Guangzhou City, Guangdong Province, 510062, China.ORCID https://orcid.org/0009-0002-1757-5620
Wentao ChenDepartment of Medical cosmetology, Foshan Second People's Hospital, 78 Weiguo Road, Chancheng District, Foshan City, Guangdong Province, 528000, China.
Lujia MaoDepartment of Burn and Plastic Surgery, Guangzhou First People's Hospital, South China University of Technology, 1 Panfu Road, Yuexiu District, Guangzhou City, Guangdong Province, 510180, China.
Weiqiang ZhangThe First Clinical Medical College, Guangdong Medical University, 2 Wenming East Road, Xiashan District, Zhanjiang City, Guangdong Province, 524002, China.
Yan ShiDepartment of Plastic, Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 17 Yongwai Zheng Street, Donghu District, Nanchang City, Jiangxi Province, 330006, China.
Julin XieDepartment of Burns, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Second Road, Yuexiu District, Guangzhou City, Guangdong Province, 510062, China.ORCID https://orcid.org/0000-0002-8276-2994
Ronghua YangDepartment of Burn and Plastic Surgery, Guangzhou First People's Hospital, Guangzhou Medical University, 1 Panfu Road, Yuexiu District, Guangzhou City, Guangdong Province, 510180, China.ORCID https://orcid.org/0000-0002-9685-7003

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Epidermal stem cells (ESCs) are primarily located in the basal layer of the epidermis and play a crucial role in wound healing. ESCs-derived exosomes (ESCs-Exo) are emerging as promising candidates for skin regeneration and wound healing. However, the underlying mechanisms remain unclear. This study aims to investigate the role and mechanisms of ESCs-Exo in promoting the proliferation, migration, and collagen synthesis of human skin fibroblasts (HSFBs). Methods: This study generated, isolated, and characterized ESC-Exos. The effects of ESCs-Exo on the proliferation of human skin fibroblasts (HSFBs) were detected via Cell Counting Kit-8 (CCK8), 5-Ethynyl-2'-deoxyuridine (EdU), and Proliferating Cell Nuclear Antigen (PCNA) and Marker of Proliferation Ki-67 (MKI67) gene expression methods. The effect of ESCs-Exo on the migration of HSFBs was detected via a transwell assay and a scratch test. The concentrations of collagen secreted by the HSFBs and the mRNAs of the two kinds of collagen expressed by the HSFBs were analyzed. We also analyzed the phosphorylation of Protein Kinase N1 (PKN1) and the expression of cyclins via western blotting. Finally, the effect of ESCs-Exo on wound healing was verified by animal experiments, and the key genes and signaling pathways of ESCs-Exo were excavated by transcriptomic analysis. Results: Western blotting revealed that the exosomes of ESCs highly expressed established markers such as Alix, CD63, and CD9. ESC-Exos significantly promoted HSFB proliferation and migration in a dose-dependent manner, as well as HSFB collagen synthesis, and effectively increased the ratio of collagen III/I. In addition, bioinformatics analysis showed that the expression of key gene C-X-C motif chemokine ligand 9 was lower in the ESCs-Exo group, which may promote wound healing by regulating PKN1-cyclin and tumor necrosis factor signaling pathways. Animal experiments demonstrated that ESCs-Exo could reduce inflammation and accelerate wound healing. Conclusions: In this study, we found that ESCs-Exo may improve wound healing by promoting the proliferation and migration of HSFBs.

Indexed as

Epidermal stem cellsExosomesHuman skin fibroblastsMigrationProliferationSkin regenerationWound healing

Identifiers

PMID39687464
PMCPMC11647520

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.