华西口腔医学杂志

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糖尿病大鼠下颌骨成骨细胞葡萄糖转运蛋白-1及胰岛素受体α1的表达

吴璇1 刘洪臣2 鄂玲玲2 李振春1   

  1. 1.大连市口腔医院口腔修复科, 大连116021; 2.解放军总医院口腔医学研究所, 北京100853
  • 收稿日期:2011-08-25 修回日期:2011-08-25 出版日期:2011-08-20 发布日期:2011-08-20
  • 通讯作者: 刘洪臣,Tel:010-66939974
  • 作者简介:吴璇(1978—),女,湖南人,主治医师,博士

Expression of glucose transporter-1 and insulin receptor α1 in osteoblast obtained from diabetic rats’mandibles

Wu Xuan1, Liu Hongchen2, E Lingling2, Li Zhenchun1   

  1. 1. Dept. of Prosthodontics, Stomatology Hospital of Dalian City, Dalian 116021, China; 2. Stomatology Institute, General Hospital of PLA, Beijing 100853, China
  • Received:2011-08-25 Revised:2011-08-25 Online:2011-08-20 Published:2011-08-20
  • Contact: Liu Hongchen,Tel:010-66939974

摘要:

目的检测糖尿病大鼠下颌骨成骨细胞中葡萄糖转运蛋白(GLUT)-1、胰岛素受体(IR)α1的表达,探讨其对成骨细胞分化功能障碍的影响。方法采用逆转录聚合酶链反应、蛋白质印迹分析、免疫组织化学染色观测糖尿病大鼠下颌骨成骨细胞及对照组细胞中GLUT-1、IR α1的表达。结果糖尿病组GLUT-1及IR α1的mRNA表达高于对照组,差异具有统计学意义(P<0.05)。2组细胞中GLUT-1、IR α1的蛋白表达与其mRNA表达相似。结论糖尿病大鼠下颌骨成骨细胞保留了对供体来源的高糖、低胰岛素环境作出的适应性变化,这可能是造成其分化功能障碍的原因之一。

关键词: 糖尿病, 下颌骨, 成骨细胞, 葡萄糖转运蛋白, 胰岛素受体

Abstract:

Objective To explore the expression of glucose transporter(GLUT)-1 and insulin receptor(IR) α1 in osteoblast obtained from diabetic rats’mandibles. Methods The expression of GLUT-1 and IR α1 of diabetic and control groups were measured by reverse transcription polymerase chain reaction, Western blot and immunohistochemistry stain. Results The mRNA expressions of GLUT-1 and IR α1 of diabetic group were significantly higher than control group(P<0.05). The protein expressions of GLUT-1 and IR α1 were similar to the mRNA expressions. Conclusion Osteoblasts obtained from diabetic rats’mandibles keep the adaptation changes to hyperglycemia and hypoinsulinemia, which may contribute to their dysfunction.

Key words: diabetes mellitus, mandible, osteoblast, glucose transporter, insulin receptor