儿童性结肠炎中miR-340-5p的诊断价值及其通过向MAP3K2来调节肠道上皮细胞功能障碍的分子机制
Fanting Meng1, Xianlong Han2, Lingxia Ge3,4
1Department of Gastroenterology, Children's Hospital Affiliated to Nanjing Medical University, Nanjing City, Jiangsu Province, China.
Hereditas
|November 19, 2025
概括
微RNA-340-5p是小儿性结肠炎 (UC) 的潜在诊断生物标志物. 它针对MAP3K2来调节儿科UC的炎症,亡和氧化应激.
科学领域:
- 胃肠病学 胃肠病学
- 分子生物学分子生物学
- 生物标志物发现发现
背景情况:
- 儿童性结肠炎 (UC) 发病率正在上升,需要新的诊断生物标志物和对分子机制的理解.
- 目前的研究缺乏用于早期诊断和有效治疗儿科UC的特定生物标志物.
研究的目的:
- 调查小儿UC中microRNA-340-5p (miR-340-5p) 的诊断价值.
- 通过识别其标,MAP3K2.2,阐明小儿UC中miR-340-5p的分子机制.
主要方法:
- 定量实时PCR (qRT-PCR) 用于测量85名儿科UC患者和50名健康对照者的miR-340-5p和MAP3K2表达.
- 双露西法酶测定以确认miR-340-5p和MAP3K2.2.之间的相互作用.
- 通过流细胞计,ELISA和氧化应激测试来评估细胞功能的体外细胞模型 (HT-29细胞) 接受硫酸 (DSS) 治疗.
主要成果:
- 在儿科UC患者中,miR-340-5p显著下调,与疾病活性指数 (PUCAI,CRP,ESR) 有负相关.
- ROC曲线分析显示,作为诊断标志物,miR-340-5p的面积为0.908.
- miR-340-5p直接向MAP3K2,抑制其表达并减轻DSS诱导的亡,炎症 (减少TNF-α,IL-6,IL-17,IL-1β) 和氧化应激 (减少MDA,增加GSH).
结论:
- miR-340-5p显示出作为儿科UC诊断生物标志物的潜力.
- 在小儿UC中,miR-340-5p/MAP3K2轴在调节亡,炎症反应和氧化应激方面发挥着至关重要的作用.
- 针对miR-340-5p/MAP3K2通路可能为儿科UC提供治疗策略.
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