在炎症性肠病患者的超声波引起的细胞外囊泡相关miRNAs的动态变化
Florian Tran1,2, Alena Scharmacher3, Nathan Baran3
1Institute of Clinical Molecular Biology, University Medical Center Schleswig-Holstein, Christian Albrecht University Kiel, Campus Kiel, Rosalind-Franklin-Strasse 12, 24105, Kiel, Germany. f.tran@ikmb.uni-kiel.de.
超声波可以诱导细胞外囊泡 (EV) 和其微RNA (miRNA) 载荷在炎症肠道内的变化. 在血液中检测到的这些特定的EV-miRNA显示出,作为炎症性肠病 (IBD) 活动的新生物标志物具有前途.
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:
- 炎症性肠病 (IBD) 管理需要可靠的血液生物标志物来检测肠道疾病的活性.
- 细胞外囊泡 (EVs) 反映了它们起源组织的分子状态.
- 超声波可能会诱导由炎症肠道组织引起的EV中的分子转移.
研究的目的:
- 为了调查 transabdominal超声波是否放大IBD患者的EVs中的炎症特异性分子转移.
- 评估这些诱导的EV变化,特别是miRNA表达,是否可以在周围血液中检测到.
- 探索这些可诱导的EVs作为肠道炎症的新生物标志物的潜力.
主要方法:
- 对26名IBD患者进行前性临床研究.
- 血清EV-miRNA分析通过测序在诊断性腹横超声波之前和之后.
- 在体外对候选诱导性EV-miRNAs的功能性评估.
主要成果:
- 血清EV-miRNA基线度与疾病严重程度相关.
- 三种miRNAs (miR-942-5p,mir-5588,mir-3195) 被超声波显著诱导.
- miR-942-5p在较高的炎症级别中被强烈诱导,并且与克罗恩病的活动相关,这表明它在屏障功能中发挥了作用.
结论:
- 腹腔超声波可以诱导从炎症肠道组织的EV中检测到的分子转移.
- 诱导的EV-miRNAs,如miR-942-5p,有可能成为IBD肠道炎症的新型基于血液的生物标志物.
- 这项概念验证研究验证了使用超声波诱导的EV变化用于生物标志物开发的原则.
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