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2017 ; 14
(2
): 137-141
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English Wikipedia
Overexpression of microRNA-196b Accelerates Invasiveness of Cancer Cells in
Recurrent Epithelial Ovarian Cancer Through Regulation of Homeobox A9
#MMPMID28387653
Chong GO
; Jeon HS
; Han HS
; Son JW
; Lee YH
; Hong DG
; Park HJ
; Lee YS
; Cho YL
Cancer Genomics Proteomics
2017[Mar]; 14
(2
): 137-141
PMID28387653
show ga
BACKGROUND/AIM: Although microRNAs (miRNAs) are known to influence messenger RNA
post-transcriptional control and contribute to human tumorigenesis, little is
known about the differences in miRNA expression between primary and recurrent
epithelial ovarian cancer (EOC). The purpose of this study was to assess the
differential miRNA expression between primary and recurrent EOC and to
investigate whether miR-196b could regulate the expression of the Homeobox A9
(HOXA9) gene, and thus affect the invasiveness of cancer cells in recurrent EOC.
MATERIALS AND METHODS: Microarrays were used to generate the expression profiles
of 6658 miRNAs from samples of 10 patients with EOC. miRNA expression patterns
were compared between primary and recurrent EOC. Aberrantly expressed miRNA,
associated genes, and invasion activities were validated by a luciferase assay
and an in vitro invasion assay. RESULTS: miRNA microarray analysis identified 33
overexpressed miRNAs (including miR-196b) and 18 under expressed miRNAs in
recurrent EOC from 6658 human miRNAs. HOXA9 expression was inversely correlated
with miR-196b levels in recurrent EOC. We noted that miR-196b induced ovarian
cancer cell invasiveness in recurrent EOC by an in vitro invasion assay.
CONCLUSION: Overexpression of miR-196b may contribute to invasion activities in
recurrent EOC by regulating the HOXA9 gene. Moreover, miR-196b can be a potential
biomarker in recurrent EOC.
|*Gene Expression Regulation, Neoplastic
[MESH]
|3' Untranslated Regions/genetics
[MESH]
|Biomarkers, Tumor/genetics
[MESH]
|Carcinoma, Ovarian Epithelial
[MESH]
|Cell Line, Tumor
[MESH]
|Cell Movement/genetics
[MESH]
|Female
[MESH]
|Gene Expression Profiling/*methods
[MESH]
|HEK293 Cells
[MESH]
|Homeodomain Proteins/*genetics
[MESH]
|Humans
[MESH]
|MicroRNAs/*genetics
[MESH]
|Neoplasm Invasiveness
[MESH]
|Neoplasm Recurrence, Local
[MESH]
|Neoplasms, Glandular and Epithelial/*genetics/pathology
[MESH]