中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (25): 3956-3960.doi: 10.12307/2022.398

• 脂肪干细胞 adipose-derived stem cells • 上一篇    下一篇

糖尿病患者脂肪间充质干细胞生物学特性及促进创面愈合的效果

徐曼曼1,纪  哲1,欧令东1,李  昂1,沈才齐2,金培生2   

  1. 1徐州医科大学研究生学院,江苏省徐州市   221004;2徐州医科大学附属医院整形外科,江苏省徐州市   221002
  • 收稿日期:2021-03-16 接受日期:2021-04-24 出版日期:2022-09-08 发布日期:2022-01-25
  • 通讯作者: 金培生,博士,主任医师,徐州医科大学附属医院整形外科,江苏省徐州市 221002
  • 作者简介:徐曼曼,女,1992年生,河南省商丘市人,汉族,2021年徐州医科大学毕业,硕士,医师,主要从事脂肪干细胞的基础研究及临床应用研究。
  • 基金资助:
    江苏省自然科学基金面上项目(BK20201155),项目参与人:金培生;江苏省普通高校研究生科研创新计划(KYCX20-2456),项目负责人:纪哲

Biological characteristics of adipose-derived mesenchymal stem cells in diabetic patients and their effect on promoting wound healing

Xu Manman1, Ji Zhe1, Ou Lingdong1, Li Ang1, Shen Caiqi2, Jin Peisheng2   

  1. 1Graduate School, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China; 2Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
  • Received:2021-03-16 Accepted:2021-04-24 Online:2022-09-08 Published:2022-01-25
  • Contact: Jin Peisheng, MD, Chief physician, Department of Plastic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
  • About author:Xu Manman, Master, Physician, Graduate School, Xuzhou Medical University, Xuzhou 221004, Jiangsu Province, China
  • Supported by:
    the General Program of Natural Science Foundation of Jiangsu, No. BK20201155 (to JPS); General University Graduate Research and Innovation Program of Jiangsu Province, No. KYCX20-2456 (to JZ)

摘要:

文题释义:
脂肪间充质干细胞:2001年,Zuk等在脂肪组织中分离出一种具有多向分化潜能的干细胞,是非造血干细胞的成体干细胞,具有向多种间充质系列细胞(如成骨、成软骨及成脂肪细胞等)或非间充质系列细胞分化的潜能,并具有独特的细胞因子分泌功能,被应用于增殖、分化、移植和修复等研究。
糖尿病难愈性创面:长期高糖环境致使糖尿病患者创面难愈合或延迟愈合,虽然难愈性慢性创面不会立即威胁生命,但因长达数月甚至数年、数十年的经久不愈,严重影响患者原发病康复和生活质量,一旦感染扩散,可导致脓毒症等并发症,危及患者生命。

背景:针对糖尿病患者脂肪间充质干细胞活性不足的机制进行干预,是有效促进糖尿病创面愈合的重要前提。
目的:观察糖尿病患者来源脂肪间充质干细胞的生物学特性及促进糖尿病创面愈合的效果。
方法:选用相同年龄、性别的正常人与糖尿病患者腹部脂肪获取脂肪间充质干细胞,采用流式细胞术、细胞划痕实验分析两组细胞凋亡、迁移情况,ELISA检测两组细胞培养上清中肝细胞生长因子、碱性成纤维生长因子、血管内皮生长因子水平。制备糖尿病裸鼠创面模型,以皮内注射的方式将不同来源脂肪间充质干细胞混悬液移植到糖尿病裸鼠创面皮肤边缘,移植后0,12,24 h通过LB983活体成像系统检测细胞存活情况,移植后7,14 d观察裸鼠背部愈合情况。
结果与结论:①与正常组比较,糖尿病组细胞凋亡率显著升高(P < 0.05),24 h迁移距离显著减小(P < 0.05);肝细胞生长因子、碱性成纤维生长因子、血管内皮生长因子分泌水平显著降低(P < 0.05);②移植后24 h观察到糖尿病来源脂肪间充质干细胞注射组活细胞数量较正常来源脂肪间充质干细胞注射组显著减少(P < 0.05),14 d后正常来源脂肪间充质干细胞注射组裸鼠背部皮肤愈合情况优于糖尿病来源脂肪间充质干细胞注射组;③结果表明,糖尿病患者来源脂肪间充质干细胞的生物学活性下降,促进创面愈合效果较差。

https://orcid.org/0000-0002-2239-0156 (金培生) 

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


关键词: 干细胞, 脂肪间充质干细胞, 2型糖尿病, 凋亡, 迁移, 创面, 愈合

Abstract: BACKGROUND: Effective intervention for the mechanism of insufficient cell activity of adipose-derived mesenchymal stem cells in diabetic patients is an important prerequisite for effectively promoting the healing of diabetic wounds.  
OBJECTIVE: To observe the biological characteristics of adipose-derived mesenchymal stem cells from diabetic patients and the effect of promoting wound healing.
METHODS:  Adipose-derived mesenchymal stem cells were obtained from the abdominal fat of normal people and diabetic patients of the same age and sex. Flow cytometry and cell scratch experiment were used to analyze the apoptosis and migration of the two groups of cells. The levels of hepatocyte growth factor, basic fibroblast growth factor, and vascular endothelial growth factor were detected by ELISA in the two groups. A diabetic nude mouse wound model was prepared; adipose-derived mesenchymal stem cell suspensions from different sources were intradermally injected into the edge of the diabetic nude mouse wound. Cell survival was detected with the LB983 in vivo imaging system at 0, 12, and 24 hours after transplantation. The back healing of nude mice was observed at 7 and 14 days after transplantation.  
RESULTS AND CONCLUSION: (1) Compared with the normal group, the cell apoptosis rate in the diabetes group was significantly increased (P < 0.05); the migration distance at 24 hours was significantly reduced (P < 0.05); the secretion levels of cytokines hepatocyte growth factor, fibroblast growth factor β, and vascular endothelial growth factor were significantly reduced (P < 0.05). (2) At 24 hours after cell transplantation, the number of living cells in the diabetic group was significantly reduced compared with the normal group (P < 0.05). After 14 days, the back skin healing of the nude mice in the normal group was better than that in the diabetic group. (3) The results showed that the biological activity of adipose-derived mesenchymal stem cells from diabetic patients decreased, and the effect of promoting wound healing was poor.

Key words: stem cells, adipose-derived mesenchymal stem cells, type 2 diabetes, apoptosis, migration, wound surface, healing

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