中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (11): 1965-1971.doi: 10.3969/j.issn.2095-4344.2013.11.010

• 组织构建与生物活性因子 tissue construction and bioactive factors • 上一篇    下一篇

酸性成纤维细胞生长因子促进大鼠肠缺血-再灌注损伤的修复

孙 虹1,张明辉2,翁立新3,孙同柱4   

  1. 1 内蒙古医学院基础医学院,内蒙古自治区呼和浩特市 010059
    2 甘肃中医学院,甘肃省兰州市 730000
    3 内蒙古医学院基础医学院病理教研室,内蒙古自治区呼和浩特市 010059
    4 解放军总医院创伤修复研究室,北京市 100853
  • 收稿日期:2012-06-06 修回日期:2012-07-06 出版日期:2013-03-12 发布日期:2013-03-12
  • 通讯作者: 翁立新,副教授,硕士生导师,内蒙古医学院病理教研室,内蒙古自治区呼和浩特市 010059 wenglixin2007@yahoo.cn
  • 作者简介:孙虹★,女,1977年生,内蒙古自治区呼和浩特市人,汉族,硕士,实验师,主要从事创伤修复方面的研究。 wenglixin2007@yahoo.cn 并列第一作者:张明辉★,男,1986年生,汉族,内蒙古自治区呼和浩特市人人,在读硕士,主要从事普通外科方面的研究。 hhhtzmh@163.com

Acidic fibroblast growth factor promotes the repair of intestinal ischemia-reperfusion injuries in rats

Sun Hong1, Zhang Ming-hui2, Weng Li-xin3, Sun Tong-zhu4   

  1. 1 Basic Medical School of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
    2 Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu Province, China
    3 Department of Pathology, Basic Medical School of Inner Mongolia Medical University, Hohhot
    010059, Inner Mongolia Autonomous Region, China
  • Received:2012-06-06 Revised:2012-07-06 Online:2013-03-12 Published:2013-03-12
  • Contact: Weng Li-xin, Associate professor, Master’s supervisor, Department of Pathology, Basic Medical School of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China wenglixin2007@yahoo.cn
  • About author:Sun Hong★, Master, Basic Medical School of Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China wenglixin2007@yahoo.cn Zhang Ming-hui, Master, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, Gansu Province, China hhhtzmh@163.com Sun Hong and Zhang Ming-hui contributed equally to this work.

摘要:

背景:细胞外调节蛋白激酶和酸性成纤维细胞生长因子受体2在肠缺血-再灌注损伤修复中的作用尚无研究报道。
目的:观察大鼠肠缺血-再灌注损伤后外源性酸性成纤维细胞生长因子对细胞外调节蛋白激酶和酸性成纤维细胞生长因子受体2表达的影响,探讨细胞外调节蛋白激酶和酸性成纤维细胞生长因子受体2与酸性成纤维细胞生长因子促进创伤修复的关系。
方法:以大鼠肠系膜上动脉夹闭45 min造成肠缺血-再灌注损伤模型,于再灌注即刻应用酸性成纤维细胞生长因子行干预。分别于再灌注2,6,12,24 h取大鼠小肠组织标本,利用免疫组化和RT-PCR检测酸性成纤维细胞生长因子受体的表达及免疫组化检测细胞外调节蛋白激酶表达的规律。
结果与结论:在正常大鼠,酸性成纤维细胞生长因子受体2主要分布在小肠绒毛上皮细胞的肠腔侧、侧壁和小肠隐窝朝向隐窝腔的一侧细胞膜上。缺血-再灌注初期,酸性成纤维细胞生长因子受体2及细胞外调节蛋白激酶的表达未发生明显变化,但随着再灌注时间的延长表达水平逐渐提高,并于再灌注后6-12 h达高峰。经酸性成纤维细胞生长因子治疗后,大鼠小肠组织小肠黏膜损伤程度减轻,酸性成纤维细胞生长因子受体2及细胞外调节蛋白激酶的表达量高于未治疗大鼠。结果表明缺血-再灌注损伤后,酸性成纤维细胞生长因子干预可上调酸性成纤维细胞生长因子受体2及细胞外调节蛋白激酶的表达,提示外源性酸性成纤维细胞生长因子通过促进内源性酸性成纤维细胞生长因子受体2和细胞外调节蛋白激酶的生成可能是其参与内脏损伤修复的机制之一。

关键词: 组织构建, 组织构建与生物活性因子, 酸性成纤维细胞生长因子, 受体, 细胞外调节蛋白激酶, 缺血-再灌注损伤, 小肠, 小肠绒毛上皮细胞, 其他基金, 组织构建图片文章

Abstract:

BACKGROUND: Role of extracellular signal-regulated kinase and acidic fibroblast growth factor receptor 2 in intestinal ischemia-reperfusion injury repair has not been reported.
OBJECTIVE: To identify the changes in extracellular signal-regulated kinase and acidic fibroblast growth factor receptor 2 regulated by exogenous acidic fibroblast growth factor (acidic fibroblast growth factor) following intestinal ischemia-reperfusion injury in rats, and to explore the role of extracellular signal-regulated kinase and acidic fibroblast growth factor receptor 2 in acidic fibroblast growth factor-induced injury repair.
METHODS: Intestinal ischemia-reperfusion injury models were produced in rats by clamping the superior mesenteric artery for 45 minutes, and then acidic fibroblast growth factor administration was applied immediately after modeling. Tissue specimens were collected at 2, 6, 12, and 24 hours after reperfusion. The expressions of acidic fibroblast growth factor receptor 2 and extracellular signal-regulated kinase were detected by immunohistochemistry and reverse transcription-PCR.
RESULTS AND CONCLUSION: The expressions of acidic fibroblast growth factor receptor 2 and extracellular signal-regulated kinase increased gradually after ischemia-reperfusion injury and peaked at 6-12 hours after reperfusion. Acidic fibroblast growth factor administration relieved intestinal mucosa injury and increased the expressions of acidic fibroblast growth factor receptor 2 and extracellular signal-regulated kinase. These results suggest that acidic fibroblast growth factor administration can upregulate the expressions of acidic fibroblast growth factor receptor 2 and extracellular signal-regulated kinase after ischemia-reperfusion injury, indicating exogenous acidic fibroblast growth factor can participate in visceral damage repair via the activation of endogenous acidic fibroblast growth factor receptor 2 and extracellular signal-regulated kinase.

Key words: tissue construction, tissue construction and bioactive factor, acidic fibroblast growth factor, receptor, extracellular signal-regulated kinase, ischemia-reperfusion injury, small intestine, intestinal villus epithelial cells, other grants-supported paper, tissue construction photographs-containing paper

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