Nara Institute of Science and Technology, Ikoma 630-0192, Japan.
University of Manitoba, Winnipeg, Canada.
BMC Med Genomics. 2020 Feb 24;13(Suppl 3):10. doi: 10.1186/s12920-020-0660-y.
BACKGROUND: Multidimensional data mining from an integrated environment of different data sources is frequently performed in computational system biology. The molecular mechanism from the analysis of a complex network of gene-miRNA can aid to diagnosis and treatment of associated diseases. METHODS: In this work, we mainly focus on finding inflammatory bowel disease (IBD) associated microRNAs (miRNAs) by biclustering the miRNA-target interactions aided by known IBD risk genes and their associated miRNAs collected from several sources. We rank different miRNAs by attributing to the dataset size and connectivity of IBD associated genes in the miRNA regulatory modules from biclusters. We search the association of some top-ranking miRNAs to IBD related diseases. We also search the network of discovered miRNAs to different diseases and evaluate the similarity of those diseases to IBD. RESULTS: According to different literature, our results show the significance of top-ranking miRNA to IBD or related diseases. The ratio analysis supports our ranking method where the top 20 miRNA has approximately tenfold attachment to IBD genes. From disease-associated miRNA network analysis we found that 71% of different diseases attached to those miRNAs show more than 0.75 similarity scores to IBD. CONCLUSION: We successfully identify some miRNAs related to IBD where the scoring formula and disease-associated network analysis show the significance of our method. This method can be a promising approach for isolating miRNAs for similar types of diseases.
背景:在计算系统生物学中,经常从不同数据源的集成环境中进行多维数据挖掘。从基因-miRNA 复杂网络的分析中得到的分子机制可以帮助诊断和治疗相关疾病。
方法:在这项工作中,我们主要通过结合已知的 IBD 风险基因及其从多个来源收集的相关 miRNA,对 miRNA-靶相互作用进行双聚类,从而找到炎症性肠病 (IBD) 相关的 microRNAs (miRNAs)。我们通过分配 miRNA 调控模块中与 IBD 相关基因的数据集大小和连接性,对不同 miRNA 进行排名。我们搜索一些排名较高的 miRNA 与 IBD 相关疾病的关联。我们还搜索了发现的 miRNAs 到不同疾病的网络,并评估这些疾病与 IBD 的相似性。
结果:根据不同的文献,我们的结果表明排名较高的 miRNA 对 IBD 或相关疾病的重要性。比率分析支持我们的排名方法,其中排名前 20 的 miRNA 大约有十倍的 IBD 基因附着。从疾病相关的 miRNA 网络分析中,我们发现 71%的与这些 miRNA 相关的不同疾病与 IBD 的相似性评分超过 0.75。
结论:我们成功地鉴定了一些与 IBD 相关的 miRNA,其中评分公式和疾病相关的网络分析显示了我们方法的重要性。这种方法可能是分离类似疾病 miRNA 的一种很有前途的方法。
BMC Med Genomics. 2020-2-24
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