昼夜时钟网络的差异表达与质瘤中的瘤进展相关
Marina Petkovic1, Müge Yalçin1,2,3, Oliver Heese4
1Institute for Theoretical Biology (ITB), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, 10117, Berlin, Germany.
BMC medical genomics
|July 3, 2023
概括
生物钟基因的失调与质瘤的进展和患者的存活率有关. 这项研究确定了与多形质母细胞瘤 (GBM) 和低级质母细胞瘤 (LGG) 发展相关的关键时钟控制基因.
科学领域:
- 神经瘤学神经瘤学
- 癌症生物学 癌症生物学
- 时间生物学 时间生物学
背景情况:
- 质瘤是具有不同等级 (WHO 2021 年分类) 的原发性脑瘤.
- 高度质瘤 (世卫组织三级和四级) 仍然在很大程度上无法治愈,尽管多式疗法.
- 循环时钟失调与包括质瘤在内的各种癌症有关.
研究的目的:
- 研究低度质瘤 (LGG) 和多种质母细胞瘤 (GBM) 中时钟控制基因的表达模式.
- 为了确定与质瘤进展和患者存活率相关的时钟控制基因.
- 在质瘤发育过程中分析关键驱动基因的突变模式.
主要方法:
- 在LGG和GBM样本中对时钟控制基因表达的分析.
- 鉴定将GBM与正常组织区分开来的基因,并与生存相关.
- 对驱动基因 (APC,HIF1A,TERT,TP53) 的突变进展模式的重建.
主要成果:
- 一组45个时钟控制的基因将GBM与正常组织区分开来;17个与生存有关.
- 与LGG相比,GBM表现出更大的基因表达失调和在昼夜时钟网络中的相关性减少.
- 瘤抑制剂APC在LGG和GBM中都在晚期丢失;HIF1A和TERT在进展过程中显示了特定的损失模式.
结论:
- 循环时钟基因失调在GBM中更加明显,并影响患者的生存率.
- 时钟调节的基因在质瘤的发展和进展中发挥着关键作用,对于关键驱动因素,观察到晚期的增益/损失.
- 需要进一步的研究来探索球瘤中准时钟调节基因的治疗潜力.
关键词:
癌症的演变 癌症的演变循环节律是指循环节律的节奏.时间调节的基因是时钟调节的基因.基因表达 基因表达质母细胞瘤 (glioblastoma) 是一个质瘤是一种质瘤.低度结质瘤是低度的结质瘤.多区域测序多区域测序瘤的进展情况.更多相关视频
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