中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (41): 6671-6677.doi: 10.3969/j.issn.2095-4344.2014.41.020

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

肌肉注射人脐带间充质干细胞健康大鼠心肌组织ki-67、phh3及cTnT的表达

王 琪,张文祥,王思平,李自普   

  1. 青岛大学医学院附属医院,山东省青岛市 266003
  • 修回日期:2014-08-08 出版日期:2014-10-01 发布日期:2014-10-01
  • 通讯作者: 李自普,博士,教授,主任医师,青岛大学医学院附属医院,山东省青岛市 266003
  • 作者简介:王琪,女,1988年生,河南省开封市人,汉族,2013年青岛大学毕业,硕士,医师,主要从事儿童心血管疾病研究。现工作于郑州市儿童医院。
  • 基金资助:

    青岛市公共领域科技支撑计划项目[11-2-3-1-(4)-nsh]

Effects of human umbilical cord mesenchymal stem cells via intramuscular injection on the myocardial ki-67, phh3 and cTnT expression in normal rats

Wang Qi, Zhang Wen-xiang, Wang Si-ping, Li Zi-pu   

  1. Affiliated Hospital of Qingdao University Medical School, Qingdao 266003, Shandong Province, China
  • Revised:2014-08-08 Online:2014-10-01 Published:2014-10-01
  • Contact: Li Zi-pu, M.D., Professor, Chief physician, Affiliated Hospital of Qingdao University Medical School, Qingdao 266003, Shandong Province, China
  • About author:Wang Qi, Master, Physician, Affiliated Hospital of Qingdao University Medical School, Qingdao 266003, Shandong Province, China
  • Supported by:

    the Scientific Support Program in the Public Domain of Qingdao, No. 11-2-3-1-(4)-nsh

摘要:

背景:肌肉注射人脐带间充质干细胞是否会增加正常心肌细胞的再生能力,对正常心肌是否会产生不良影响,尚不明确。

目的:观察肌肉注射人脐带间充质干细胞对健康Wistar大鼠心肌组织中ki-67、phh-3及cTnT表达的影响。
方法:将60只健康雄性Wistar大鼠随机分为正常组,培养液组,上清液组,脐带间充质干细胞低、中、高剂量组,每组分别给予大鼠四肢肌肉注射不同液体,分别为:PBS、DMEM培养液、培养人脐带间充质干细胞的上清液、0.25×105人脐带间充质干细胞、1.0×105人脐带间充质干细胞、4.0×105人脐带间充质干细胞,间隔4周共注射2次,第8周处死大鼠,取心肌组织固定、包埋及切片,应用免疫组织化学方法检测大鼠心肌组织中ki-67、phh-3及cTnT的表达。

结果与结论:正常组中ki-67在心肌组织细胞胞核呈阴性表达,phh3在心肌组织细胞胞核呈弱阳性表达,cTnT在心肌细胞胞浆中呈强阳性表达;与正常组相比,培养液组、上清液组及脐带间充质干细胞低、中、高剂量组间ki-67、phh-3及cTnT的表达差异无显著性意义(F=1.076、0.167及0.300;P > 0.05)。提示经肌肉注射人脐带间充质干细胞或其培养上清液对健康Wistar大鼠心肌组织ki-67、phh-3及cTnT的表达无影响。


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


全文链接:

关键词: 干细胞, 脐带脐血干细胞, 脐带间充质干细胞, 肌肉注射, ki-67, phh-3, cTnT, 心肌组织

Abstract:

BACKGROUND: It is unclear whether intramuscular injection of human umbilical cord mesenchymal stem cells will increase regeneration of normal myocardial cells and play adverse effects on normal myocardium.

OBJECTIVE: To observe the effects of intramuscular injection of human umbilical cord mesenchymal stem cells on expression of the myocardial ki-67, phh3 and cTnT in normal Wistar rats.
METHODS: A total of 60 male Wistar rats were divided into six groups randomly: normal group, solution group, supernatant group, low concentration group, moderate concentration group, and high concentration group. These groups were intramuscularly injected different liquid, respectively, as follows: PBS, DMEM, the supernatant of human umbilical cord mesenchymal stem cells, human umbilical cord mesenchymal stem cells with amount of 0.25×105, human umbilical cord mesenchymal stem cells with amount of 1.0×105, human umbilical cord mesenchymal stem cells with amount of 4.0×105. After 4 weeks, each rats received the second same intramuscular injections of human umbilical cord mesenchymal stem cells. Four weeks after the second injection, all rates were killed to obtain myocardial tissues which were fixed, embedded and sectioned. Finally, the ki-67, phh3 and cTnT expressions of the myocardium were detected by immunohistochemical technique. 
RESULTS AND CONCLUSION: In the normal group, negative expression of the ki-67 was observed in the caryon of myocardial cells, weak positive expression of the phh3 was observed in the caryon of myocardial cells, and positive expression of the cTnT was observed in the caryon of myocardial cells. Compared with the normal group, the expression of the ki-67, phh3 and cTnT in the myocardium had no significant difference among the
other groups (F=1.076, 0.167, 0.300; P > 0.05). Human umbilical cord mesenchymal stem cells or the supernatant of human umbilical cord mesenchymal stem cells via intramuscular injection have no effects on the expression of the ki-67, phh3 and cTnT in normal Wistar rats.

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


全文链接:

Key words: umbilical cord, mesenchymal stem cells, injections, intramuscular, myocardium, troponin T, Ki-67 antigen

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