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在DSS诱导的性结肠炎中,IGF2/IGF2R/Sting信号作为治疗目标

Ling Chen¹, Xiao-Lin Zhong¹, Wen-Yu Cao²

¹Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, China.

European journal of pharmacology

|October 20, 2023

概括

胰岛素样生长因子2 (IGF2) 通过降低cGAS-Sting通路的调节来保护性结肠炎. 这种治疗保持了结肠干和屏障完整性,为炎症性肠病提供了一种新的治疗方法.

科学领域:

胃肠病学胃肠病学
免疫学免疫学免疫学
分子生物学分子生物学

背景情况:

性结肠炎 (UC) 是一种慢性炎症性肠病,患病率正在上升.
目前的UC治疗有局限性和显著的副作用.
胰岛素样生长因子2 (IGF2) 在UC病变发生过程中的作用基本上是未知的.

研究的目的:

在性结肠炎的小鼠模型中研究IGF2的治疗潜力.
阐明IGF2在UC中的保护作用背后的分子机制.

主要方法:

使用硫酸德克斯 (DSS) 诱导的性结肠炎小鼠模型.
用于小鼠的重组IGF2,以评估其对疾病严重程度和炎症的影响.
在结肠组织中研究了IGF2和IGF2受体 (IGF2R) 表达水平.
分析了cGAS-Sting通路的激活及其与IGF2R的相互作用.
在IGF2治疗后评估结肠茎和紧密结合完整性.

主要成果:

在DSS诱导的大肠炎小鼠的结肠中,IGF2的表达减少.
重组IGF2治疗缓解了结肠损伤,减少了炎症,并改善了临床评分.
在IGF2治疗下调高调的cGAS-Sting通道在结肠炎.
IGF2治疗保留了结肠干和修复紧密结节功能.

结论:

IGF2/IGF2R信号传递在DSS诱导的性结肠炎中起着保护作用.
IGF2通过降低cGAS-Sting通路的调节来缓解UC,从而保持结肠茎和屏障完整性.
IGF2代表了性结肠炎的有希望的治疗候选者.

关键词:

屏障的完整性屏障的完整性 IGF2 IGF2 的意思是什么紧密的结口紧密的结口.性结肠炎是一种

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