PuSH - Publication Server of Helmholtz Zentrum München: Circ-PTPDC1 promotes the progression of gastric cancer through sponging Mir-139-3p by regulating ELK1 and functions as a prognostic biomarker.

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Li, Z.* ; Cheng, Y.* ; Fu, K.* ; Lin, Q.* ; Zhao, T. ; Tang, W.* ; Xi, L.* ; Sheng, L.* ; Zhang, H.* ; Sun, Y.*

Circ-PTPDC1 promotes the progression of gastric cancer through sponging Mir-139-3p by regulating ELK1 and functions as a prognostic biomarker.

Int. J. Biol. Sci. 17, 4285-4304 (2021)

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	Open Access Gold

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Circular RNAs (circRNAs) is a novel class of non-coding RNAs resulting from the non-canonical splicing of linear pre-mRNAs. However, the role of circRNAs in gastric cancer (GC) remains indistinct. This study aims to explore their potential modulation in GC and its prognostic value. We first screen for circRNA expression patterns in GC through GC and adjacent noncancerous tissues by microarray. Based on the bioinformatics analysis of the microarray data, we screened out a novel circRNA, circ-PTPDC1. Then we demonstrated that circ-PTPDC1 was up-regulated in GC cells, tissues, and serum. Its overexpression was positively correlated with age, invasion depth, advanced clinical stages, and worse survival in patients with GC. We further revealed that circ-PTPDC1 promotes the proliferation, migration, and invasion of GC cell lines via sponging miR-139-3p by regulating ELK1. Importantly, we identified that circ-PTPDC1 promotes tumor upgrowth and metabasis in vivo. Additionally, we established its prognostic prediction model based on the follow-up data of the patients. Our study revealed a novel regulatory mechanism and a comprehensive landscape of circ-PTPDC1 in GC, suggesting that circ-PTPDC1 has the potential to be a biomarker for early detection and prognostic prediction of GC.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords Elk ; Circ-ptpdc1 ; Gastric Cancer ; Mir-139-3p ; Prognosis

ISSN (print) / ISBN 1449-2288

e-ISSN 1449-2288

Journal International Journal of Biological Sciences

Quellenangaben Volume: 17, Issue: 15, Pages: 4285-4304

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Institute of Epidemiology (EPI)