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Effect of stem cell factor on colon interstitial cells of Cajal in murine with diabetes mellitus
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- Author:
- No author available
- Journal Title:
- WORLD CHINESE JOURNAL OF DIGESTOLOGY
- Issue:
- 12
- DOI:
- 10.3969/j.issn.1009-3079.2008.12.007
- Key Word:
- 糖尿病;干细胞因子;Cajal间质细胞;结肠;免疫印迹;免疫组化
Abstract： 目的:探讨外源性干细胞因子(stem cell factor,SCF)能善糖尿病(diabetes mellitus,DM)小鼠结肠Cajal间质细胞(interstitial cells of Cajal,ICC)的异常病变.方法:DMd、鼠一次性ip链脲佐菌素(STZ,150mg/kg)造模,将♂ C57/BL6小鼠分为正常对照组(control组)、糖尿病组(DM组)、糖尿病+外源性SCF组(DM+SCF组):DM+SCF组ip SCF0.2 μg/(kg穌),control组和DM组每天ip等量的磷酸盐缓冲液(pH=7.4),干预6 wk后处死所有小鼠,以Western blot检测远端结肠组织中SCF的表达情况,以免疫组化、透射电镜和Western blot观察远端结肠ICC的变化.结果:DM小鼠远端结肠组织中SCF水平明显降低(178.97±13.51 vs 200.25±16.48,P<0.05),且伴结肠组织中ICC数量减少(72±10 vs 102±12.P＜0.05)、超微结构严重破坏.DM鼠给予外源性SCF干预后,结肠组织中SCF表达(210.14±11.8)上调(P＜0.05),且ICC的数量(87±10,P＜0.05)和超微结构显著改善.结论:外源性SCF对糖尿病相关的结肠ICC异常病变有一定改善或逆转作用.
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