Tumor IsomiR Encyclopedia (TIE): a pan-cancer database of miRNA isoforms.

ABSTRACT:

Summary

MicroRNAs (miRNAs) are master regulators of gene expression in cancers. Their sequence variants or isoforms (isomiRs) are highly abundant and possess unique functions. Given their short sequence length and high heterogeneity, mapping isomiRs can be challenging; without adequate depth and data aggregation, low frequency events are often disregarded. To address these challenges, we present the Tumor IsomiR Encyclopedia (TIE): a dynamic database of isomiRs from over 10 000 adult and pediatric tumor samples in The Cancer Genome Atlas (TCGA) and The Therapeutically Applicable Research to Generate Effective Treatments (TARGET) projects. A key novelty of TIE is its ability to annotate heterogeneous isomiR sequences and aggregate the variants obtained across all datasets. Results c

SUBMITTER: Bofill-De Ros X 

PROVIDER: S-EPMC8479663 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature