Construction of circRNA‐based ceRNA network and its prognosis‐associated subnet of clear cell renal cell carcinoma

0301 basic medicine ceRNA network 0303 health sciences clear cell renal cell carcinoma (ccRCC) Neoplasms. Tumors. Oncology. Including cancer and carcinogens Bioinfomatics RNA, Circular Prognosis Transfection CCDC8 Kidney Neoplasms 3. Good health has_circ_0001167 03 medical and health sciences Cell Line, Tumor Humans circRNA Gene Regulatory Networks prognosis RNA, Messenger Carcinoma, Renal Cell RC254-282
DOI: 10.1002/cam4.4311 Publication Date: 2021-09-28T00:19:33Z
ABSTRACT
AbstractCircular RNAs (circRNAs) are novel biomarkers of various cancers. CircRNAs can sponge miRNAs and regulate target mRNAs, which was called competing endogenous RNAs (ceRNA). This study was designed to identify circRNAs related to patients with clear cell renal cell carcinoma (ccRCC) and the first to select three independent Gene Expression Omnibus microarrays covering circRNAs, miRNAs, and mRNAs for multiple analyses. The data of clinical cases applied in our study were obtained from The Cancer Genome Atlas. We successfully conducted a circRNA/miRNA/mRNA ceRNA network related to ccRCC patients via R software and Cytoscape including 8 circRNAs, 6 miRNAs, and 49 mRNAs. The prognosis‐associated subnet covered 8 circRNAs, 6 miRNAs, and 22 mRNAs. Quantitative real‐time PCR was applied to measure our prediction in three renal cell lines and 23 pairs of tissues. Small interfering RNA targeting the back‐splice region of hsa_circ_0001167 was further implied to confirm the regulation. Ultimately, hsa_circ_0001167/hsa‐miR‐595/CCDC8 regulatory axis was identified in this study, which may serve as prognostic indicators. Lower levels of hsa_circ_0001167 and CCDC8 were potentially correlated with worse patient survival.
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