一个泛癌症询问内多化及其与癌症特征的关联
Liang Liu1,2, Peiqing Sun1, Wei Zhang1,2
1Department of Cancer Biology, Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157, United States.
Briefings in bioinformatics
|July 31, 2024
概括
内部多基化物 (IPA) 是一种新探索的癌症标志物. 这项研究揭示了它们在32种癌症类型中的失调,将它们与DNA修复和患者的结果联系起来.
科学领域:
- 基因组学就是基因组学.
- 癌症生物学 癌症生物学
- 分子生物学分子生物学
背景情况:
- 3'UTR替代多基化 (APA) 已得到充分研究,但内部多基化 (IPA) 在很大程度上尚未被探索.
- IPA在基因调节中发挥作用,并具有潜在的临床意义.
研究的目的:
- 在不同类型的癌症中对IPA概况进行表征.
- 在癌症中识别失调的IPA及其相关基因.
- 调查IPAs的临床相关性和预后潜力.
主要方法:
- 在癌症基因组图谱 (TCGA) 队列中的9679名患者样本中分析了22260个IPA.
- 在32种癌症类型中,瘤和配对正常组织之间的IPA概况的比较.
- 在癌症类型中识别持续失调的IPA和相关基因.
主要成果:
- 在每种癌症类型的132个2249个基因中确定了1804645个失调的IPA.
- 在癌症中选择了2741个具有一致的IPA模式的基因:1834个瘤丰富 (例如,DNA损伤修复) 和907个瘤枯竭.
- IPA异型表达与瘤突变负担和患者特征相关,显示出预后潜力.
结论:
- 这项研究揭示了瘤相关的IPAs的作用和临床相关性.
- IPAs代表了一类新的生物标志物,有可能用于癌症诊断和预后.
- 对IPA的进一步研究可以揭示新的治疗策略.
相关概念视频
02:39lncRNA - Long Non-coding RNAs
8.5K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.5K
03:18Non-LTR Retrotransposons
11.4K
As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...
11.4K