急性坏死性胰腺炎大鼠胰腺高迁移率族蛋白-1的表达及意义
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郭仁宣

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The role of the expression of high mobility group box 1 in the pancreas of acute necrotizing pancreatitis in rats
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    摘要:

    目的:探讨急性坏死性胰腺炎(ANP)大鼠模型胰腺组织高迁移率族蛋白-1(HMGB1)的表达及其意义。
    方法:72只大鼠随机分成3组,即对照组、ANP组和正丁酸钠治疗组(治疗组)。逆行性胰胆管注射5%牛磺胆酸钠建立ANP模型。ELISA法检测血清TNF-α和IL-1β水平;RT-PCR法检测胰腺组织HMGB1 mRNA的表达,并观察其病理变化。
    结果:ANP组血清TNF-α和IL-1β水平在ANP 建模后6h达高峰,12h下降。ANP组大鼠胰腺组织HMGB1 mRNA表达水平在ANP后12h明显升高,至24h仍维持在较高水平。治疗组胰腺组织HMGB1 mRNA表达水平在ANP后12,24h明显低于ANP组(P<0.05),且同期胰腺损伤比ANP组轻(P<0.05)。建模后24h血清TNF-α和IL-1β水平ANP组与治疗组间差异无显著性。
    结论:HMGB1作为晚期炎症因子参与了ANP的全身炎症反应。HMGB1抑制剂正丁酸钠能降低ANP大鼠胰腺组织HMGB1基因表达水平,减轻ANP胰腺组织的损伤。

    Abstract:

    Abstract:Objective:To study the significance of change of high mobility group box 1 (HMGB1) level of pancreas in acute necrotizing pancreatitis (ANP) in rats.
    Methods :ANP model was induced by retrograde injection of sodium taurocholate in pancreatic duct. Animals were divided randomly into three groups: control group, ANP group, and sodium butyrate treatment group (treatment group). The serum levels of TNF-α and IL-1β were measured by ELISA. The HMGB1 mRNA level of pancreas was detected by RT-PCR.
    Results:The serum levels of TNF-α and IL-1β were quickly increased after the model was induced, and reached a peak at 6h, but decreased at 12h. The HMGB1 mRNA level of pancreas was increased significantly at 12h, and maintained to 24h. Whereas in treatment group, the HMGB1 level of pancreas was lower than ANP group (P<0.05) and injury of pancreas was milder than that of ANP group (P<0.05).
    Conclusions:HMGB1 seems to act as a late mediator in ANP. Sodium butyrate treatment could decrease HMGB1 levels of ANP rats.

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朱峰, 龙锦, 何忠野, 葛春林, 郭仁宣, 郭克建.急性坏死性胰腺炎大鼠胰腺高迁移率族蛋白-1的表达及意义[J].中国普通外科杂志,2007,16(5):4-.
DOI:10.7659/j. issn.1005-6947.2007.05.003

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  • 在线发布日期: 2007-05-25