Department of Orthopedic Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (R.O.C.).
Department of Plastic and Reconstructive Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan (R.O.C.).
Int Wound J. 2018 Aug;15(4):660-672. doi: 10.1111/iwj.12910. Epub 2018 Mar 13.
Repair and regeneration of craniofacial tissues is particularly challenging because they comprise a complex structure of hard and soft tissues involved in intricate functions. This study combined collagen scaffolds and human adipose stem cells (hASCs) for oral mucosal and calvarial bone regeneration by using resveratrol (RSV), which affects the differentiation of mesenchymal stem cells. We have evaluated the effect of collagen scaffold-containing RSV (collagen/RSV) scaffolds both in vitro and in vivo for their wound healing and bone regeneration potential. Scanning electron microscopy and immunostaining results reveal that hASCs adhere well to and proliferate on both collagen scaffolds and collagen/RSV scaffolds. Oral mucosal lesion experiments demonstrated that the collagen/RSV scaffold is more effective in wound closure and contraction than the collagen scaffold. The micro-computed tomography (μCT) images of calvarial bone display regenerating bone in defects covered with hASCs on collagen/RSV scaffolds that are more visible than that in defects covered with hASCs on a collagen scaffolds. RSV was more effective at inducing hASC differentiation on the collagen scaffold, suggesting that collagen/RSV scaffolds can provide useful biological cues that stimulate craniofacial tissue formation.
颅面组织的修复和再生特别具有挑战性,因为它们包含了复杂的硬组织和软组织结构,涉及复杂的功能。本研究通过使用白藜芦醇(RSV)将胶原蛋白支架和人脂肪干细胞(hASCs)结合起来,用于口腔黏膜和颅骨骨再生,RSV 影响间充质干细胞的分化。我们已经评估了含有 RSV 的胶原蛋白支架(collagen/RSV)支架在体外和体内对伤口愈合和骨再生潜力的影响。扫描电子显微镜和免疫染色结果表明,hASCs 很好地黏附在胶原蛋白支架和 collagen/RSV 支架上并增殖。口腔黏膜病变实验表明,与胶原蛋白支架相比,collagen/RSV 支架在伤口闭合和收缩方面更有效。颅骨骨的微计算机断层扫描(μCT)图像显示,在 collagen/RSV 支架上覆盖 hASCs 的缺陷中,再生的骨比在胶原蛋白支架上覆盖 hASCs 的缺陷中更明显。RSV 更有效地诱导胶原蛋白支架上的 hASC 分化,表明 collagen/RSV 支架可以提供有用的生物学线索,刺激颅面组织的形成。