在结直肠癌中与基损失的临床和病理关联[修正]
S E Kern1, E R Fearon, K W Tersmette
1Department of Pathology, Johns Hopkins Medical Institution, Baltimore, Md 21205.
JAMA
|June 2, 1989
概括
结直肠癌中的分子遗传变化,包括染色体臂17p和18q上的等位基因损失,提供了预后见解. 这些发现有助于识别患有远程转移和癌症相关死亡风险较高的患者.
科学领域:
- 在瘤学瘤学.
- 分子遗传学 分子遗传学
- 癌症研究 癌症研究
背景情况:
- 大肠直肠癌表现出多种分子遗传变化.
- 了解这些变化对于预测患者的结果至关重要.
研究的目的:
- 研究结直肠癌中分子遗传变化的临床和病理关联.
- 为了确定特定遗传变化的预后意义,包括等位基因损失.
主要方法:
- 在83名结肠直肠癌患者中分析了分数基损失和特定染色体臂缺失 (17p,18q,5q).
- 多变量分析包括杜克斯的分类和遗传改变.
- 评估与转移和家族病史等临床因素的关联.
主要成果:
- 当用杜克斯分类进行分析时,分量基损失和17p和18q的删除独立预测了预后.
- 高分位基损失和17p/18q删除与远程转移有关.
- 拉斯原型瘤基因突变和5q缺失没有显示出预后重要性.
- 与家族癌症史,左侧瘤和细胞外粘素缺失相关的等位素损失.
结论:
- 基删除分析确定了结直肠癌子组,其转移和死亡风险更高.
- 特定的遗传变化,如17p和18q删除,具有显著的预后价值.
- 进一步的研究可能会导致基因变化的临床应用,用于预后评估.
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