获得长非编码RNA的GIST
Giulia Zerbo1, Daniela Gasparotto1
1Unit of Oncogenetics and Functional Oncogenomics, Centro di Riferimento Oncologico CRO Aviano, National Cancer Institute, IRCCS, via Gallini 2, Aviano, Italy.
Biochimica et biophysica acta. Reviews on cancer
|May 30, 2025
概括
长非编码RNAs (lncRNAs) 在胃肠道 stromal 瘤 (GISTs) 中起着至关重要的作用,影响其发展和对伊马替尼治疗的耐药性. 了解lncRNAs为GIST治疗提供了新的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 胃肠道 stromal 瘤 (GIST) 是消化道中瘤最常见的一种,通常是由KIT或PDGFRA突变驱动的.
- 伊马替尼布是晚期GIST的标准治疗方法,但在超过一半的患者中发生二次耐药性.
- 长非编码RNAs (lncRNAs) 正在成为GIST中基因表达的关键调节者,影响疾病进展和治疗反应.
研究的目的:
- 为GIST.中关于lncRNAs的当前知识提供全面的综述.
- 阐明lncRNAs在GIST病变发生,进展和意马替尼抗性的作用.
- 探索 lncRNAs 作为预后/预测生物标志物和治疗点的临床潜力.
主要方法:
- 在GIST中对lncRNAs的研究的文献综述.
- 分析lncRNA作为GIST中的瘤基因或瘤抑制剂的功能.
- 评估 lncRNAs 在伊马替尼布耐药性机制中的作用.
主要成果:
- lncRNAs参与了GIST中复杂的基因表达调节.
- 特定的lncRNAs可以作为瘤基因或瘤抑制剂起作用,影响GIST行为.
- lncRNAs涉及到对伊马替尼布的二次耐药性的发展.
结论:
- lncRNAs为GIST生物学和抵抗机制提供了宝贵的见解.
- 在GIST患者中,lncRNA具有作为预后和预测指标的潜力.
- 针对lncRNAs为新的GIST治疗策略提供了一个有希望的途径.
相关概念视频
lncRNA - Long Non-coding RNAs
9.0K
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...
9.0K
Types of RNA
6.6K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
6.6K
Non-LTR Retrotransposons
11.9K
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...
11.9K
MicroRNAs
21.8K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
21.8K
Ribosomal RNA Synthesis
13.5K
Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
13.5K
Nucleic Acid Structure
7.2K
The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA...
DNA Structure
DNA...
7.2K


