基于图形卷积网络的多视图融合,具有预测与药物相关的miRNA的注意力机制
Nan Sheng1,2, Yunzhi Liu1, Ling Gao1
1College of Computer Science and Technology, Jilin University, Changchun, China.
PLoS computational biology
|November 14, 2025
概括
这项研究引入了一种新的计算方法,MGCNA,用于预测微RNA (miRNA) 如何影响抗癌药物耐药性和敏感性. MGCNA有效地识别了潜在的miRNA药物协会 (MDA),帮助癌症治疗和药物发现.
科学领域:
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
- 基因组学就是基因组学.
背景情况:
- 微RNAs (miRNAs) 是癌症进展和药物反应的关键调节者.
- 识别miRNA-药物关联 (MDA) 对于个性化癌症治疗至关重要.
- 对于MDAs,现有的计算方法是有限的,并且经常忽视多源数据.
研究的目的:
- 开发一种新的计算方法来预测miRNA相关药物耐药性/敏感性.
- 整合多源数据,以提高MDA的预测准确度.
- 为改进癌症治疗策略确定新的MDA.
主要方法:
- 开发了一个基于多视图融合的图形卷积网络,带有注意力机制 (MGCNA).
- 整合了miRNA和药物的宏观和微观信息,以创建多视图节点功能.
- 使用一个带有注意力机制的图形卷积网络 (GCN) 编码器来学习自适应特征的重要性.
主要成果:
- 在对基准数据集的MDA预测方面,MGCNA显著优于现有的基线方法.
- 该模型通过案例研究证明了通过案例研究发现新型miRNA药物关联的有效性.
- 多视图融合和注意力机制改善了对药物耐药性/敏感性的预测.
结论:
- MGCNA提供了一种强大的计算工具,用于预测miRNA相关药物耐药性和敏感性.
- 该研究强调了整合多来源生物数据用于MDA预测的潜力.
- 这些发现可以为开发向癌症疗法和新药发现提供信息.
相关概念视频
Combined Effects of Drugs: Synergism
6.7K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
6.7K
MicroRNAs
3.8K
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 the pre-miRNA...
3.8K
MicroRNAs
23.9K
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...
23.9K
Targets for Drug Action: Overview
10.0K
Drugs target macromolecules to modify ongoing cellular processes. Primary drug targets include receptors, ion channels, transporters, and enzymes.
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
10.0K
Neural Circuits
2.6K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
2.6K
Drug Discovery: Overview
10.9K
Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
10.9K

