4.7 Article

Circular RNA EPHA3 suppresses progression and metastasis in prostate cancer through the miR-513a-3p/BMP2 axis

期刊

JOURNAL OF TRANSLATIONAL MEDICINE
卷 21, 期 1, 页码 -

出版社

BMC
DOI: 10.1186/s12967-023-04132-4

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circEPHA3; miR-513a-3p; BMP2; Progression; Metastasis; Prostate cancer

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A circular RNA called circEPHA3 was found to be down-regulated in prostate cancer tissues and cell lines. The study further demonstrated that circEPHA3 inhibits the proliferation and metastasis of prostate cancer cells through the miR-513a-3p/BMP2 axis, suggesting its potential as a therapeutic target for prostate cancer.
BackgroundCircular RNAs (circRNAs) may regulate the onset and progression of human malignancies by competitively binding to microRNA (miRNA) sponges, thus regulating the downstream genes. However, aberrant circRNA expression patterns and their biological functions in prostate cancer (PCa) warrant further studies. Our research sought to shed further light on the possible role and molecular mechanism of circEPHA3 action in controlling the growth and metastasis of PCa cells.Materials and methodscircEPHA3 (has_circ_0066596) was initially screened from a previous circRNA microarray and identified following Actinomycin D and RNase R assays. Fluorescence in situ hybridization, biotin-coupled probe RNA pulldown, and dual-luciferase reporter gene assays were performed to examine the relationship between circEPHA3 and miR-513a-3p. The biological role of circEPHA3 in PCa was assessed by CCK8, wound healing, Transwell assays, and animal experiments.ResultsWe identified a novel circular RNA, circEPHA3 (has_circ_0066596), which was down-regulated in high-grade PCa tissues and cell lines. The outcomes of CCK8, wound healing, Transwell assays, and animal experiments revealed that circEPHA3 prohibited the progression and metastasis of PCa in vivo and in vitro. Mechanistically, circEPHA3 was directly bound to miR-513a-3p and regulated the downstream gene, BMP2, thereby serving as a tumor suppressor in PCa.ConclusionsAs a tumor suppressor, circEPHA3 inhibited the proliferation and metastasis of PCa cells through the miR-513a-3p/BMP2 axis, suggesting that circEPHA3 might be a potential therapeutic target for PCa.

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