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Hyaluronic acid hydrogel loaded by adipose stem cells enhances wound healing by modulating IL-1β, TGF-β1, and bFGF in burn wound model in rat.
Journal of Biomedical Materials Research Part B: Applied Biomaterials ( IF 3.4 ) Pub Date : 2019-05-13 , DOI: 10.1002/jbm.b.34411
Esmat Alemzadeh 1 , Ahmad Oryan 2 , Ali A Mohammadi 3
Affiliation  

Application of hydrogels can be an effective technique in transferring the adipose‐derived stem cells (ASCs) to injured tissue and their protection from further complications. Besides, acellular dermal matrix (ADM) has successfully been used in treatment of wounds. In this study, a combination of hylauronic acid (HA) and ASCs (HA/ASCs) was applied on burn wounds and the injured area was then covered by an ADM dressing in a rat model (ADM‐HA/ASCs). Wound healing was evaluated by histopathological, histomorphometrical, molecular, biochemical, and scanning electron microscopy assessments on days 7, 14, and 28 post‐wounding. ADM‐HA/ASCs stimulated healing significantly more than the ADM‐HA and ADM treated wounds, as it led to reduced inflammation, and improved angiogenesis and enhanced granulation tissue formation. Expression of interleukin‐1β (IL‐1β) and transforming growth factor‐β1 (TGF‐β1) was lower in the ADM‐HA/ASCs treated wounds than the ADM‐HA and ADM groups, at the seventh post‐wounding day. ADM‐HA/ASCs also enhanced the expression level of TGF‐β1 mRNA at 14 day post‐wounding that was parallel to the experimental data from histological and biochemical assessments and confirmed the positive role of ASCs in repair of burn wounds. Additionally, increase in basic fibroblast growth factor (bFGF) expression and decreased TGF‐β1 level on the 28th post‐wounding day indicated the anti‐scarring activity of ASCs. HA loaded by adipose stem cells can represent a promising strategy in accelerating burn wound healing.

中文翻译:

脂肪干细胞负载的透明质酸水凝胶通过调节大鼠烧伤模型中的 IL-1β、TGF-β1 和 bFGF 来促进伤口愈合。

水凝胶的应用可以成为将脂肪干细胞 (ASC) 转移到受伤组织并保护它们免受进一步并发症的有效技术。此外,脱细胞真皮基质(ADM)已成功用于治疗伤口。在这项研究中,将透明质酸 (HA) 和 ASCs (HA/ASCs) 的组合应用于烧伤创面,然后在大鼠模型 (ADM-HA/ASCs) 中用 ADM 敷料覆盖受伤区域。在伤口后第 7、14 和 28 天,通过组织病理学、组织形态计量学、分子、生化和扫描电子显微镜评估来评估伤口愈合情况。ADM-HA/ASCs 刺激愈合明显多于 ADM-HA 和 ADM 治疗的伤口,因为它导致炎症减少,改善血管生成和增强肉芽组织形成。在伤口后第 7 天,ADM-HA/ASCs 治疗的伤口中白细胞介素-1β(IL-1β)和转化生长因子-β1(TGF-β1)的表达低于 ADM-HA 和 ADM 组。ADM-HA/ASCs 还在伤口后 14 天增强了 TGF-β1 mRNA 的表达水平,这与来自组织学和生化评估的实验数据平行,并证实了 ASCs 在修复烧伤创面中的积极作用。此外,伤后第 28 天碱性成纤维细胞生长因子 (bFGF) 表达增加和 TGF-β1 水平降低表明 ASC 具有抗瘢痕形成活性。脂肪干细胞加载的 HA 可以代表加速烧伤伤口愈合的有前途的策略。在伤后第七天。ADM-HA/ASCs 还在伤口后 14 天增强了 TGF-β1 mRNA 的表达水平,这与来自组织学和生化评估的实验数据平行,并证实了 ASCs 在修复烧伤创面中的积极作用。此外,伤后第 28 天碱性成纤维细胞生长因子 (bFGF) 表达增加和 TGF-β1 水平降低表明 ASC 具有抗瘢痕形成活性。脂肪干细胞加载的 HA 可以代表加速烧伤伤口愈合的有前途的策略。在伤后第七天。ADM-HA/ASCs 还在伤口后 14 天增强了 TGF-β1 mRNA 的表达水平,这与来自组织学和生化评估的实验数据平行,并证实了 ASCs 在修复烧伤创面中的积极作用。此外,伤后第 28 天碱性成纤维细胞生长因子 (bFGF) 表达增加和 TGF-β1 水平降低表明 ASC 具有抗瘢痕形成活性。脂肪干细胞加载的 HA 可以代表加速烧伤伤口愈合的有前途的策略。伤后第 28 天碱性成纤维细胞生长因子 (bFGF) 表达增加和 TGF-β1 水平降低表明 ASC 具有抗瘢痕形成活性。脂肪干细胞加载的 HA 可以代表加速烧伤伤口愈合的有前途的策略。伤后第 28 天碱性成纤维细胞生长因子 (bFGF) 表达增加和 TGF-β1 水平降低表明 ASC 具有抗瘢痕形成活性。脂肪干细胞加载的 HA 可以代表加速烧伤伤口愈合的有前途的策略。
更新日期:2019-05-13
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