中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (5): 790-796.doi: 10.3969/j.issn.2095-4344.1581

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

脂肪间充质干细胞膜片移植促进创面愈合的可行性

陈梅红,党旖旎,朱旭东,李 璇,彭 磊,杨佳佳,张国新   

  1. 南京医科大学第一附属医院,江苏省南京市 210029
  • 修回日期:2018-11-07 出版日期:2019-02-18 发布日期:2019-02-18
  • 通讯作者: 张国新,博士,教授,博士生导师,主任医师,南京医科大学第一附属医院,江苏省南京市 210029
  • 作者简介:陈梅红,女,1993年生,江苏省溧阳市人,汉族,南京医科大学在读硕士,主要从事干细胞与创面修复方面的研究。
  • 基金资助:

    2015年江苏省级重点研发专项资金(BE2015716),项目负责人:张国新;2014年度江苏省第四期“333工程”科研资助立项项目(BRA2014332),项目负责人:张国新

Feasibility of adipose-derived mesenchymal stem cell sheet transplantation for wound healing

Chen Meihong, Dang Yini, Zhu Xudong, Li Xuan, Peng Lei, Yang Jiajia, Zhang Guoxin   

  1. the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • Revised:2018-11-07 Online:2019-02-18 Published:2019-02-18
  • Contact: Zhang Guoxin, MD, Professor, Doctoral supervisor, Chief physician, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • About author:Chen Meihong, Master candidate, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
  • Supported by:

    the Jiangsu Provincial Special Fund for Research and Development Project in 2015, No. BE2015716 (to ZGX); 2014 Fourth-Phase “333 Project” Research Funding Project of Jiangsu Province, No. BRA2014332 (to ZGX)

摘要:

文章快速阅读:

文题释义:
温度敏感培养皿:
利用温度敏感培养皿,可完整的获取细胞膜片,不使用消化酶,仅改变温度,培养于温度敏感培养皿上的细胞就可以成膜片状脱落,保留了细胞间的黏附蛋白、细胞外基质,且获取的细胞膜片易于黏附在生物组织上,不需缝合。该培养皿外观与一般培养皿相似,区别在于其细胞接种面上包被了一层温度敏感聚合物——聚乙烯N-异丙基丙烯酰胺,从而使其具有制备细胞膜片的能力。
脂肪间充质干细胞:是来源于中胚层,具有自我复制能力和多向分化潜能的多能成体干细胞。它来源丰富,取材方便,体外扩增体系成熟,且具有低免疫原性、炎症抑制等特点,还可通过分泌多种生长因子,如血管内皮生长因子、转化生长因子、肝细胞生长因子等,促进组织血管化、促进创面上皮再生,创面愈合,成为再生医学领域理想的种子细胞。

 

摘要
背景:
脂肪间充质干细胞因其能旁分泌多种生长因子、获取方便、具有免疫调节等作用,常被用于组织修复和功能重建。食管内镜黏膜下剥离后狭窄的预防和治疗是困扰医生和患者的难题。脂肪间充质干细胞结合新型组织工程技术——细胞膜片,具有促进创面修复、预防食管狭窄发生的潜能和应用价值。
目的:探讨脂肪间充质干细胞膜片的生物学特征,分析其预防食管内镜黏膜下剥离后狭窄的可行性。
方法:①将使用温度敏感培养皿制备的绿色荧光蛋白标记的脂肪间充质干细胞膜片设为实验组,常规贴壁脂肪间充质干细胞为对照组,通过ELISA、反转录实时PCR及Western blot比较2组血管内皮生长因子、转化生长因子β1、肝细胞生长因子含量;②取裸鼠制备皮肤人工溃疡,随机分为贴膜组与模型组,贴膜组立即在皮肤创面处贴附绿色荧光蛋白标记的脂肪间充质干细胞膜片。
结果与结论:①脂肪间充质干细胞膜片中细胞含量较高,细胞外基质丰富,细胞与细胞之间连接存在;膜片组血管内皮生长因子、转化生长因子β1、肝细胞生长因子表达水平均高于对照组;②裸鼠背部脂肪间充质干细胞膜片移植成功,且贴膜组愈合速度快于模型组;③实验结果提示脂肪间充质干细胞结合细胞膜片技术预防食管内镜黏膜下剥离后狭窄具有可行性,但仍需大量的基础及临床研究进一步证实。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程
ORCID: 0000-0002-3909-592X(陈梅红)

关键词: 内镜黏膜下剥离, 食管狭窄, 脂肪间充质干细胞, 细胞膜片, 血管内皮生长因子, 转化生长因子β1, 肝细胞生长因子, 创面愈合, 干细胞

Abstract:

BACKGROUND: Adipose-derived mesenchymal stem cells are often used for tissue repair and functional reconstruction due to their paracrine actions of multiple growth factors, easy access and immunomodulatory effects. The prevention and treatment of esophageal stenosis after esophageal endoscopic submucosal dissection is a challenge for doctors and patients. Adipose-derived mesenchymal stem cell transplantation combined with the cell sheet technology has the potential to promoting wound repair and preventing esophageal stenosis. 
OBJECTIVE: To investigate the biological characteristics of adipose-derived mesenchymal stem cell sheet, and to analyze the feasibility of preventing esophageal stenosis after esophageal endoscopic submucosal dissection. 
METHODS: The green fluorescent protein-labeled adipose-derived mesenchymal stem cell sheets were prepared using temperature-sensitive culture dishes and were set as the experimental group. Conventionally adherent adipose-derived mesenchymal stem cells were used as the control group. Levels of vascular endothelial growth factor, transforming growth factor β1 and hepatocyte growth factor in the two groups were compared by ELISA, RT-qPCR and western blot. The skin ulcers of nude mice were prepared, and randomized into cell sheet group and model group. The green fluorescent protein-labeled adipose-derived mesenchymal stem cell sheets were then implanted into the skin wound in the cell sheet group. 
RESULTS AND CONCLUSION: The number of cells in the cell sheet was high with enriched extracellular matrix, and there was an interconnection between cells. The expression levels of vascular endothelial growth factor, transforming growth factor β1 and hepatocyte growth factor in the experimental group were all higher than those in the control group. The adipose-derived mesenchymal stem cell sheet on the back of nude mice was successfully transplanted, and the wound healing in the cell sheet group was faster than that of the model group. Experimental findings indicate that adipose-derived mesenchymal stem cell transplantation combined with the cell sheet technology is feasible to prevent stenosis after esophageal endoscopic submucosal dissection, but a large number of basic and clinical studies are warranted. 


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words: Intercellular Signaling Peptides and Proteins, Ulcer, Tissue Engineering

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