首都医科大学学报 ›› 2010, Vol. 31 ›› Issue (1): 69-71.

• 老年病的基础与临床研究 • 上一篇    下一篇

胰岛素增敏剂罗格列酮对链脲佐菌素损伤SH-SY5Y细胞的保护作用

张景燕, 王蓉, 盛树力, 姬志娟, 孟祥宏, 赵志炜   

  1. 首都医科大学宣武医院中心实验室, 神经变性病教育部重点实验室
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-02-21 发布日期:2010-02-21

Protective Effect of Insulin Sensitizer Rosiglitazone on SH-SY5Y Cell against Streptozotocin-induced Injury

ZHANG Jing-yan, WANG Rong*, SHENG Shu-li, JI Zhi-juan, MENG Xiang-hong, ZHAO Zhi-wei   

  1. Central Laboratory, Xuanwu Hospital, Capital Medical University; Key Laboratory for Neurodegenerative Diseases of Ministry of Education
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-02-21 Published:2010-02-21
  • Contact: WANG Rong

摘要: 目的 观察胰岛素增敏剂罗格列酮对链脲佐菌素(streptozotocin,STZ)所致胰岛素信号转导通路损伤的SH-SY5Y细胞的影响。方法 将人神经母细胞瘤株SH-SY5Y细胞分为对照组、STZ制备神经元损伤模型组(STZ 0.8 mmol/L)、罗格列酮干预组(STZ 0.8 mmol/L+罗格列酮20 μmol/L),测定每组的细胞计数、噻唑蓝(MTT)代谢率、乳酸脱氢酶(LDH)漏出率,观察罗格列酮对SH-SY5Y细胞的作用。结果 与对照组相比,STZ模型组的细胞计数和MTT代谢率降低(P<0.01),LDH漏出率升高(P<0.01);经罗格列酮保护后,上述细胞生存指标明显改善,细胞计数和MTT代谢率均高于STZ损伤组(P<0.01),LDH漏出率降低(P<0.01)。结论 罗格列酮可以减轻STZ引起的神经细胞毒性,提高细胞生存率,其作用机制尚需进一步探讨。

关键词: 人神经母细胞瘤株SH-SY5Y, 链脲佐菌素, 罗格列酮

Abstract: Objective To investigate the effect of insulin sensitizer rosiglitazone on streptozotocin(STZ)induced insulin signal transduction pathway injury in SH-SY5Y cells. Methods Cells from human neuroblastoma cell line SH-SY5Y were divided into control group, STZ 0.8 mmol/L group, STZ 0.8 mmol/L+rosiglitazone 20 μmol/L group. The cells were counted, MTT(MTT) metabolic rate, lactate dehydrogenase(LDH) leakage rate in each group were measured, and the effect of rosiglitazone on SH-SY5Y cells was observed. Results Compared with the control group, cell count and MTT metabolic rate of STZ model decreased(P<0.01), and LDH leakage rate increased(P<0.01). After rosiglitazone protection, these indicators were significantly improved, cell count and MTT metabolic rate were higher than that in STZ injury group(P<0.01), LDH leakage rate was lower(P<0.01). Conclusion Rosiglitazone can reduce STZ-induced nerve cell toxicity, to improve cell survival, though its mechanism still need to be further explored.

Key words: human neuroblastoma cell line SH-SY5Y, streptozotocin, rosiglitazone

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