在巴雷特食道监测中使用生物标志物
Annesha Chatterjee1, Julian A Abrams2, Matthew D Stachler1
1Department of Pathology and Laboratory Medicine, University of California San Francisco, San Francisco CA 94143.
The American journal of gastroenterology
|February 12, 2026
概括
巴雷特食道患者需要更好地评估食道癌症进展的风险. 生物标志物如p53,基因组含量和甲基化DNA在识别高风险个体方面表现有前途,克服了成形障碍评估的局限性.
科学领域:
- 胃肠病学 胃肠病学
- 在瘤学瘤学.
- 分子诊断学 分子诊断学
背景情况:
- 巴雷特食道 (Barrett's esophagus,BE) 是食道腺癌的前体,但大多数患者没有进展.
- 目前的风险分层依赖于失生症评估,失生症在观察者之间存在显著的变化.
- 迫切需要可靠的生物标志物来识别具有癌症进展高风险的BE患者.
研究的目的:
- 审查有希望的生物标志物来预测巴雷特食道中进展风险.
- 突出目前临床实践中失育症评估的局限性.
- 要总结关于p53的研究,异常的基因组含量和甲基化DNA标记物.
主要方法:
- 对调查巴雷特食道进展的生物标志物的研究进行审查.
- 专注于分子标记物,包括p53蛋白表达.
- 分析基因组不稳定性和DNA甲基化模式作为预测标记.
主要成果:
- 在BE中,p53异常显示出作为增加癌症风险的标志物的潜力.
- 异常的基因组含量 (无积分体) 与更高的进展率有关.
- 甲基化DNA标记物正在成为食道腺癌发展的有希望的预测因素.
结论:
- 生物标志物如p53,基因组含量和甲基化DNA为BE患者提供了改善的风险分层.
- 这些分子标记物可能可以克服失生症分级的主观性.
- 这些生物标志物的进一步验证对于在管理BE的临床实施至关重要.
相关概念视频
Barrett Esophagus-I: Introduction
Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more similar...
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more similar...
Barrett Esophagus-II: Clinical Manifestations and Management
Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...


