在 laparoscopic 反流体手术后,食道屏障完整性的分子和功能恢复
Pelin Ergun1,2, Sezgi Kipcak2,3, Volkan Gorgulu4
1Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
Digestive diseases and sciences
|April 16, 2025
概括
腹腔镜反流体手术 (LARS) 通过增强屏障功能和降低透性,改善了GERD患者的食道粘膜完整性. 然而,扩张的细胞间空间在手术后仍然存在,这表明它们不是早期的GERD标志物.
科学领域:
- 胃肠病学 胃肠病学
- 手术研究的研究.
- 分子生物学分子生物学
背景情况:
- 腹腔镜抗逆流性手术 (LARS) 是用于治疗胃食道逆流性疾病 (GERD).
- LARS对食道上皮质重塑和修复的影响需要进一步研究.
- 了解这些变化对于评估手术结果和GERD病变发生至关重要.
研究的目的:
- 评估LARS对食道上皮质屏障功能的影响.
- 在手术后分析关键紧结蛋白和细胞间空间的表达.
- 为了将屏障功能的变化与GERD患者的手术结果相关联.
主要方法:
- 在LARS.之前和6个月后,从健康对照组 (HC) 和GERD患者中收集了食道活检.
- 量化了E-cadherin,奥克卢丁,克劳丁,ZO-1和ZO-2的表达水平.
- 光显微镜被用来检查扩展的细胞间空间 (DIS).
- 测量了体电阻 (TEER) 和粘膜透性.
主要成果:
- 与手术前和HC相比,LARS显著增加了GERD患者的TEER和降低了粘膜透度.
- 在TEER和透性之间观察到负相关性.
- 与HC相比,扩张细胞间空间 (DIS) 在LARS后的GERD患者中仍然存在.
- 在LARS后,ZO-1和奥克卢丁的基因表达显著上调.
结论:
- 通过改善屏障功能,LARS增强了食道粘膜的完整性,由增加的TEER和降低的透性表明.
- 尽管有所改善,但DIS在LARS后仍然扩大,这表明它们可能不是GERD的早期指标.
- 在LARS后,紧结基因的升级支持上皮质屏障的恢复,为GERD病原体和潜在的治疗点提供了洞察力.
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