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Racial Differences in Expression Levels of miRNA Machinery-Related Genes, Dicer, Drosha, DGCR8, and AGO2, in Asian Korean Papillary Thyroid Carcinoma and Comparative Validation Using the Cancer Genome Atlas

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Author(s)
Jaegil KimWoo-Jae ParkKwang-Joon JeongSun Hee KangSun Young KwonShin KimJong-Wook Park
Keimyung Author(s)
Kang, Sun HeeKwon, Sun YoungPark, Jong WookKim, Shin
Department
Dept. of Immunology (면역학)
Dept. of Surgery (외과학)
Dept. of Pathology (병리학)
Journal Title
International Journal of Genomics
Issued Date
2017
Volume
2017
Abstract
Aberrant regulation of microRNA (miRNA) machinery components is associated with various human cancers, including papillary thyroid carcinoma (PTC), which is the most common type of thyroid cancer, and a higher prevalent female malignancy. The purpose of this study is to investigate racial differences in mRNA expression levels of four miRNA machinery components, Dicer, Drosha, DGCR8, and AGO2, and their correlations with clinicopathological characteristics. Forty PTC samples from female Asian Korean PTC patients were enrolled. Using qPCR, we examined mRNA expression levels of the components and next validated our results by comparison with results of female white American in the TCGA PTC project. Interestingly, mRNA expression levels of the selected factors were altered in the TCGA PTC samples. However, only Drosha showed a significantly lower expression level in Asian Korean PTC samples. Furthermore, the mRNA expression levels of the four components showed no association with clinicopathological characteristics in both groups. On the other hand, positive correlations were observed between altered mRNA expression levels of Dicer and Drosha and DGCR8 and Drosha in TCGA PTC samples. These findings collectively revealed that altered mRNA expression levels of miRNA machinery components might be responsible for racial differences in the carcinogenesis of PTC.
Keimyung Author(s)(Kor)
강선희
권선영
김신
박종욱
Publisher
School of Medicine
Citation
Jaegil Kim et al. (2017). Racial Differences in Expression Levels of miRNA Machinery-Related Genes, Dicer, Drosha, DGCR8, and AGO2, in Asian Korean Papillary Thyroid Carcinoma and Comparative Validation Using the Cancer Genome Atlas. International Journal of Genomics, 2017, 5789769–5789769. doi: 10.1155/2017/5789769
Type
Article
ISSN
2314-436X
DOI
10.1155/2017/5789769
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/32423
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Immunology (면역학)
1. School of Medicine (의과대학) > Dept. of Pathology (병리학)
1. School of Medicine (의과대학) > Dept. of Surgery (외과학)
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