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在膀癌中诱导瘤后异位性染色体变化的瘤 - - 从组织学上正常的尿体的见解
Wiktoria Stańkowska1, Daniil Sarkisyan2, Bożena Bruhn-Olszewska2
13P-Medicine Laboratory, Medical University of Gdańsk, M. Sklodowskiej-Curie 3A, 80-210 Gdańsk, Poland.
Cancers
|March 13, 2024
概括
膀泌尿细胞癌 (BLCA) 的现场癌症研究使用染色体变化. 确定了正常泌尿中的早期基因组变化,这表明染色体Y (LOY) 丧失在BLCA发育中的作用.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 癌症研究 癌症研究
背景情况:
- 膀泌尿腺癌 (BLCA) 是一种流行癌症,存活率很低,男性占主导地位.
- 现场癌变,即瘤周围组织学上正常组织中的前新生变化的存在,与BLCA的发展有关.
研究的目的:
- 为了调查早期的自体染色体变化和染色体Y (LOY) 丢失在BLCA患者的组织学上正常的尿膜中.
- 确定与BLCA发展相关的基因组热点,并评估LOY在不同组织类型中的流行率.
主要方法:
- 采用多样本,多组织每患者的方法,分析了277个正常泌尿器样本,145个瘤和63个来自52名男性和15名女性的血液样本.
- 采用马赛克染色体变化 (MoChA) 管道用于敏感检测后异位性染色体异常和LOY.
主要成果:
- 在45%的BLCA患者的正常泌尿器样本中检测到至少一个染色体变异.
- 确定了16个基因组热点,其中包括已知的和新的BLCA驱动基因,具有异构性 (CN-LOH) 的增益,删除和副本数中性损失.
- 观察到LOY细胞的显著流行率:29%在瘤中,27%在血液中,18%在正常的泌尿道中.
结论:
- 这项研究证明了在BLCA之前的尿膜中表征早期基因组变化的能力.
- 瘤和正常泌尿衍生的组织中频繁的LOY表明它可能参与膀癌的发病过程.
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