AmiCa:癌症中的miRNA基因相关性图谱
Nina Hauptman1, Jože Pižem1, Daša Jevšinek Skok2
1Institute of Pathology, Faculty of Medicine, University of Ljubljana, Slovenia.
Computational and structural biotechnology journal
|June 6, 2024
概括
AmiCa是一个新的网络服务器,用于分析癌症中的microRNA-target相互作用 (MTIs). 它帮助研究人员研究32种癌症类型的瘤和正常组织中的基因表达和miRNA相关性.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 癌症研究 癌症研究
背景情况:
- RNA测序数据可以分析微RNA-目标相互作用 (MTIs).
- 需要一种专门的工具来研究癌症和正常组织中的MTIs.
- 癌症基因组图谱提供了广泛的瘤和正常样本数据.
研究的目的:
- 开发AmiCa,一个用于对32种癌症类型中成熟的微RNA (miRNA) 和基因表达进行全面分析的网络服务器.
- 为瘤和正常组织提供差异表达数据和MTI相关性.
- 通过识别高度表达的基因和miRNAs来促进癌症特异性研究.
主要方法:
- 使用了癌症基因组图谱数据 (9498个瘤,626个正常样本) 通过基因组数据共享.
- 微RNA和基因的计算差异表达.
- 计算的miRNA-目标基因 (MTI) 相关性,分别用于瘤和正常样本.
- 基于癌症特异性表达的基因和miRNA的排名系统.
主要成果:
- 在正常组织数据可用的情况下,AmiCa为miRNAs/基因提供差异表达数据.
- 计算MTI相关性,并分别呈现瘤和正常样本.
- 服务器允许在所有32种癌症类型中探索miRNA/基因表达.
- 一个排名系统识别出特定于癌症的高度表达的基因和miRNAs.
结论:
- AmiCa是一个有价值的网络服务器,用于分析癌症中的miRNA-target相互作用.
- 该工具通过突出关键分子参与者来支持癌症特定研究.
- AmiCa有助于理解miRNAs在各种癌症类型中的作用.
相关概念视频
MicroRNAs
3.0K
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 the pre-miRNA...
3.0K
lncRNA - Long Non-coding RNAs
8.6K
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...
8.6K
Cancer-Critical Genes II: Tumor Suppressor Genes
7.4K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
7.4K
DNA Microarrays
17.3K
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
17.3K


