MiRTarBase update 2022: An informative resource for experimentally validated miRNA-target interactions

Hsi Yuan Huang, Yang Chi Dung Lin, Shidong Cui, Yixian Huang, Yun Tang, Jiatong Xu, Jiayang Bao, Yulin Li, Jia Wen, Huali Zuo, Weijuan Wang, Jing Li, Jie Ni, Yini Ruan, Liping Li, Yidan Chen, Yueyang Xie, Zihao Zhu, Xiaoxuan Cai, Xinyi ChenLantian Yao, Yigang Chen, Yijun Luo, Shupeng Luxu, Mengqi Luo, Chih Min Chiu, Kun Ma, Lizhe Zhu, Gui Juan Cheng, Chen Bai, Ying Chih Chiang, Liping Wang, Fengxiang Wei*, Tzong Yi Lee*, Hsien Da Huang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

424 Scopus citations

Abstract

MicroRNAs (miRNAs) are noncoding RNAs with 18-26 nucleotides; they pair with target mRNAs to regulate gene expression and produce significant changes in various physiological and pathological processes. In recent years, the interaction between miRNAs and their target genes has become one of the mainstream directions for drug development. As a large-scale biological database that mainly provides miRNA-target interactions (MTIs) verified by biological experiments, miRTarBase has undergone five revisions and enhancements. The database has accumulated >2 200 449 verified MTIs from 13 389 manually curated articles and CLIP-seq data. An optimized scoring system is adopted to enhance this update's critical recognition of MTI-related articles and corresponding disease information. In addition, single-nucleotide polymorphisms and disease-related variants related to the binding efficiency of miRNA and target were characterized in miRNAs and gene 3′ untranslated regions. miRNA expression profiles across extracellular vesicles, blood and different tissues, including exosomal miRNAs and tissue-specific miRNAs, were integrated to explore miRNA functions and biomarkers. For the user interface, we have classified attributes, including RNA expression, specific interaction, protein expression and biological function, for various validation experiments related to the role of miRNA. We also used seed sequence information to evaluate the binding sites of miRNA. In summary, these enhancements render miRTarBase as one of the most research-amicable MTI databases that contain comprehensive and experimentally verified annotations. The newly updated version of miRTarBase is now available at https://miRTarBase.cuhk.edu.cn/.

Original languageEnglish
Pages (from-to)D222-D230
JournalNucleic acids research
Volume50
Issue numberD1
DOIs
StatePublished - 7 Jan 2022

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