標題: Large-Scale Investigation of Human TF-miRNA Relations Based on Coexpression Profiles
作者: Chien, Chia-Hung
Chiang-Hsieh, Yi-Fan
Tsou, Ann-Ping
Weng, Shun-Long
Chang, Wen-Chi
Huang, Hsien-Da
生物科技學系
生物資訊及系統生物研究所
分子醫學與生物工程研究所
Department of Biological Science and Technology
Institude of Bioinformatics and Systems Biology
Institute of Molecular Medicine and Bioengineering
公開日期: 2014
摘要: Noncoding, endogenous microRNAs (miRNAs) are fairly well known for regulating gene expression rather than protein coding. Dysregulation of miRNA gene, either upregulated or downregulated, may lead to severe diseases or oncogenesis, especially when the miRNA disorder involves significant bioreactions or pathways. Thus, how miRNA genes are transcriptionally regulated has been highlighted as well as target recognition in recent years. In this study, a large-scale investigation of novel cis- and trans-elements was undertaken to further determine TF-miRNA regulatory relations, which are necessary to unravel the transcriptional regulation of miRNA genes. Based on miRNA and annotated gene expression profiles, the term "coTFBS" was introduced to detect common transcription factors and the corresponding binding sites within the promoter regions of each miRNA and its coexpressed annotated genes. The computational pipeline was successfully established to filter redundancy due to short sequencemotifs for TFBS pattern search. Eventually, we identified more convinced TF-miRNA regulatory relations for 225 human miRNAs. This valuable information is helpful in understanding miRNA functions and provides knowledge to evaluate the therapeutic potential in clinical research. Once most expression profiles of miRNAs in the latest database are completed, TF candidates of more miRNAs can be explored by this filtering approach in the future.
URI: http://hdl.handle.net/11536/24577
http://dx.doi.org/10.1155/2014/623078
ISSN: 2314-6133
DOI: 10.1155/2014/623078
期刊: BIOMED RESEARCH INTERNATIONAL
顯示於類別:期刊論文


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