中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (23): 3658-3663.doi: 10.3969/j.issn.2095-4344.2015.23.009

• 脐带脐血干细胞 umbilical cord blood stem cells • 上一篇    下一篇

CD133脐血干细胞对妊娠期糖尿病的影响

宁  力1,2,袁  雨2,谭  彬2   

  1. 1重庆市开县人民医院产科,重庆市  405400;2重庆医科大学,重庆市  400016
  • 出版日期:2015-06-04 发布日期:2015-06-04
  • 作者简介:宁力,女,1966年生,重庆市人,汉族,2006年成都中医药大学毕业,主治医师,主要从事妇产科临床与基础研究。
  • 基金资助:

    重庆市卫生局医学科研项目资助(CX201346)

Human umbilical cord blood-derived CD133 cells for treatment of gestational diabetes 

Ning Li1,2, Yuan Yu2, Tan Bin2   

  1. 1Department of Obstetrics, Kaixian County People’s Hospital of Chongqing, Chongqing 405400, China; 2Chongqing Medical University, Chongqing 400016, China
  • Online:2015-06-04 Published:2015-06-04
  • About author:Ning Li, Attending physician, Department of Obstetrics, Kaixian County People’s Hospital of Chongqing, Chongqing 405400, China; Chongqing Medical University, Chongqing 400016, China
  • Supported by:

    a grant from Medical Science and Research Program of Bureau of Public Health of Chongqing of China, No. CX201346

摘要:

背景:脐血中含有大量的造血干细胞、丰富的间充质干细胞,与外周血及骨髓干细胞相比,新生儿脐血干细胞的异体排斥反应小,免疫原性低。
目的:观察CD133脐血干细胞植入治疗小鼠妊娠期糖尿病的可行性,为临床妊娠期糖尿病的治疗提供新的途径。
方法:采用高糖高脂喂养方法对孕鼠进行妊娠期糖尿病造模,流式细胞分选技术对脐血干细胞进行分离筛选。将筛选出的CD133脐血干细胞通过尾静脉植入妊娠期糖尿病小鼠体内,移植7 d后,测定小鼠空腹血糖、空腹胰岛素、总胆固醇和三酰甘油水平,采用苏木精-伊红染色观察小鼠胰腺组织的损伤和修复情况,采用胰岛素抵抗稳态模型分析小鼠胰岛素抵抗指数和胰岛功能。
结果与结论:采用流式细胞分选技术可以从脐血单核细胞中分选出CD133脐血干细胞,分选纯度可达到(90.24±2.56)%;尾静脉移植脐血干细胞7 d后,妊娠期糖尿病孕鼠总胆固醇、三酰甘油水平、空腹血糖和空腹胰岛素水平均明显下降(P < 0.05),胰岛素抵抗指数下降,胰岛功能改善(P < 0.05),孕鼠胰腺组织萎缩情况逆转,炎性浸润减少。结果表明脐血干细胞移植可以使妊娠期糖尿病病情得到改善,可能与其修复胰腺损伤、降低胰岛素抵抗指数、改善胰岛功能有关。

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, 脐带脐血干细胞, 妊娠期糖尿病, CD133脐血干细胞, 流式细胞分选技术, 胰岛素稳态模型, 胰岛素, 空腹血糖, 血脂

Abstract:

BACKGROUND: Human umbilical cord blood contains a large number of hemopoietic stem cells and mesenchymal stem cells. Neonate umbilical cord blood-derived stem cells show milder immunological rejection and lower immunogenicity than peripheral blood- and bone marrow-derived mesenchymal stem cells.
OBJECTIVE: To investigate the feasibility of umbilical cord blood-derived CD133 cells for treatment of gestational diabetes, so as to provide novel methods for clinical treatment of gestational diabetes.
METHODS: Mouse models of gestational diabetes were established by high-fat and high-sugar diet feeding. Umbilical cord blood-derived CD133 cells were sorted by flow cytometry sorting technique and then transplanted into mouse models of gestational diabetes via the tail vein. At 7 days after cell transplantation, serum levels of fasting blood glucose, fasting insulin, total cholesterol and triacylglycerol were measured and mouse pancreatic tissue injury and repair was observed by hematoxylin-esoin staining. Mouse insulin resistance index and pancreatic islet function were analyzed using the homeostatic model assessment.
RESULTS AND CONCLUSION: Umbilical cord blood-derived CD133 cells could be isolated from umbilical cord blood monocytes using flow cytometry sorting technique, with cell purity of (90.24±2.56)%. At 7 days after cell transplantation, serum levels of fasting blood glucose, fasting insulin, total cholesterol and triacylglycerol were 
significantly decreased, insulin resistance index was significantly decreased, and pancreatic islet function was significantly improved in mouse models of gestational diabetes (all P < 0.05). In addition, atrophy of pancreatic tissue and infiltration of inflammatory cells were reduced. These results show that umbilical cord blood-derived CD133 cell transplantation can improve the disease condition of gestational diabetes by repairing injured pancreatic tissue, decreasing insulin resistance index and improving pancreatic islet function. 

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: Cord Blood Stem Cell Transplantation, Diabetes, Gestational, Islets of Langerhans, Blood Glucose, Insulin

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