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胃食道腺癌中的CLDN18.2表达:西班牙患者的流行率,异质性和预后影响
Carolina Martinez-Ciarpaglini1, María Ortega2, Sandra Pérez-Buira3
1Department of Pathology, Hospital Clínico Universitario of Valencia, Biomedical Research Institute INCLIVA, University of Valencia, Valencia, Spain.
Virchows Archiv : an international journal of pathology
|November 8, 2025
概括
克劳丁18异型2 (CLDN18.2) 在西班牙胃食道腺癌患者中存在33%. 在先进的肠道瘤中,CLDN18.2阳性与较差的无进展生存率相关.
科学领域:
- 在瘤学瘤学.
- 胃肠病学 胃肠病学
- 生物标志物研究 生物标志物研究
背景情况:
- 克劳丁18异型2 (CLDN18.2) 是胃食道腺癌的治疗点.
- 由于CLDN18.2的流行率各不相同,因此需要特定人群的数据.
研究的目的:
- 为了确定西班牙胃食道腺癌患者中CLDN18.2的患病率.
- 探索CLDN18.2和临床病理因素之间的相关性.
主要方法:
- 对来自270名西班牙患者的内镜活检样本进行了回顾性分析.
- 使用Ventana CLDN18 (43-14A) 测定CLDN18.2表达的免疫组织化学.
- 与临床病理学和生物标志物数据的相关性分析.
主要成果:
- 在33% (89/270) 的病例中表达了CLDN18.2.
- 没有与组织学类型的相关性,但在缺乏凝聚力的瘤中具有异质性.
- 印章环细胞含量和CLDN18.2染色之间的反相关性 (r=-0.29,p=0.028).
- CLDN18.2阳性与晚期肠腺癌的无进展生存率较差相关 (HR 2.58,p=0.029).
结论:
- 证实了西班牙胃食道腺癌患者中33%的CLDN18.2患病率.
- 由于缺乏凝聚力和密封环细胞瘤的异质性,存在诊断挑战.
- 阳性CLDN18.2可能表明瘤进展和肠腺癌转移中的作用.
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