期刊
WORLD JOURNAL OF STEM CELLS
卷 12, 期 7, 页码 659-675出版社
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.4252/wjsc.v12.i7.659
关键词
Mesenchymal stem cells; Adult stem cells; Embryonic stem cells; Erythroid precursor cells; Stem cell therapies; Chronic wounds
BACKGROUND The impairment of cutaneous wound healing results in chronic, non-healing wounds that are caused by altered wound environment oxygenation, tissue injury, and permissive microbial growth. Current modalities for the treatment of these wounds inadequately address the complex changes involved in chronic wound pathogenesis. Consequently, stem cell therapies have emerged as a potential therapeutic modality to promote cutaneous regeneration through trophic and paracrine activity. AIM To investigate current literature regarding use of stem cell therapies for the clinical treatment of chronic, non-healing wounds. METHODS PubMed, EMBASE, Cochrane Library, Web of Science, and Scopus were queried with combinations of the search terms mesenchymal stem cells, adult stem cells, embryonic stem cells, erythroid precursor cells, stem cell therapies, and chronic wounds in order to find relevant articles published between the years of 2000 and 2019 to review a 20-year experience. Reference lists from the articles were reviewed to identify additional pertinent articles. Retrieved manuscripts (reviews, case reports/series, retrospective/prospective studies, and clinical trials) were evaluated by the authors for their depiction of clinical stem cell therapy use. Data were extracted from the articles using a standardized collection tool. RESULTS A total of 43 articles describing the use of stem cell therapies for the treatment of chronic wounds were included in this review. While stem cell therapies have been explored inin vitroandin vivoapplications in the past, recent efforts are geared towards assessing their clinical role. A review of the literature revealed that adipose-derived stem cells, bone marrow-derived stem cells, bone marrow-derived mononuclear cells, epidermally-derived mesenchymal stem cells, fibroblast stem cells, keratinocyte stem cells, placental mesenchymal stem cells, and umbilical cord mesenchymal stem cells have all been employed in the treatment of chronic wounds of various etiologies. Most recently, embryonic stem cells have emerged as a novel stem cell therapy with the capacity for multifaceted germ cell layer differentiation. With the capacity for self-renewal and differentiation, stem cells can enrich existing cell populations in chronic wounds in order to overcome barriers impeding the progression of wound healing. Further, stem cell therapies can be utilized to augment cell engraftment, signaling and activity, and resultant patient outcomes. CONCLUSION Assessing observed clinical outcomes, potential for stem cell use, and relevant therapeutic challenges allows wound care stakeholders to make informed decisions regarding optimal treatment approaches for their patients' chronic wounds.
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