International Journal of Medical Sciences

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20 September 2018

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Int J Med Sci 2018; 15(6):610-616. doi:10.7150/ijms.24061

Research Paper

Potential miRNA-target interactions for the screening of gastric carcinoma development in gastric adenoma/dysplasia

Yu Jin Kim1,2, Ki-Chul Hwang3,4, Sang Woo Kim3,4✉, Yong Chan Lee5✉

1. Department of Internal Medicine, Catholic Kwandong University, International St. Mary's Hospital, Incheon Metropolitan City, 404-834, Republic of Korea
2. Yonsei University College of Medicine, 50-Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
3. Catholic Kwandong University, International St. Mary's Hospital, Incheon Metropolitan City, 404-834, Republic of Korea
4. Institute for Bio-Medical Convergence, College of Medicine, Catholic Kwandong University, Gangneung-si, Gangwon-do 210-701, Republic of Korea
5. Division of Gastroenterology, Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, 50-Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea

Abstract

Although miRNA markers have been identified for the pathological development of gastric adenocarcinoma (GAC), the underlying molecule mechanism are still not fully understood. Moreover, some gastric adenoma/dysplasia may progress to GAC. In this study, the miRNA expression profiles in normal and paired low-/high-grade dysplasia were analyzed using Affymetrix Gene-Chip miRNA arrays. Of the total 2578 mature miRNA probe sets, ~1600 showed positive signals when the between normal and paired low-/high-grade dysplasia were compared. To verify the miRNA expression, qRT-PCR analysis was performed to quantify the expression of altered miRNAs between normal and paired low-/high-grade dysplasia. The analysis revealed that hsa-miR-421, hsa-miR-29b-1-5p, and hsa-miR-27b-5p were overexpressed in gastric low-/high-grade dysplasia and that based on these miRNA-target interactions, FBXO11 and CREBZF could be considered convincing markers for gastric cancer (GC) progression. Thus, we identified three miRNAs (hsa-miR-421, hsa-miR-29b-1-5p, and hsa-miR-27b-5p) with two mRNAs (FBXO11 and CREBZF) that might play an important role in the GC development from premalignant adenomas. Furthermore, these two target mRNAs and three miRNAs were predicted to be potential biomarkers for the progression of GC by miRNA-target interaction analysis.

Keywords: microRNA, gastric adenocarcinoma, hsa-miR-421, hsa-miR-29b-1-5p, hsa-miR-27b-5p

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How to cite this article:
Kim YJ, Hwang KC, Kim SW, Lee YC. Potential miRNA-target interactions for the screening of gastric carcinoma development in gastric adenoma/dysplasia. Int J Med Sci 2018; 15(6):610-616. doi:10.7150/ijms.24061. Available from http://www.medsci.org/v15p0610.htm