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2014 ; 2014
(ä): 291280
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A systematic analysis of miRNA-mRNA paired variations reveals widespread miRNA
misregulation in breast cancer
#MMPMID24949432
Zhong L
; Zhu K
; Jin N
; Wu D
; Zhang J
; Guo B
; Yan Z
; Zhang Q
Biomed Res Int
2014[]; 2014
(ä): 291280
PMID24949432
show ga
MicroRNAs (miRNAs) are a class of small noncoding RNAs that can regulate gene
expression by binding to target mRNAs and induce translation repression or RNA
degradation. There have been many studies indicating that both miRNAs and mRNAs
display aberrant expression in breast cancer. Previously, most researches into
the molecular mechanism of breast cancer examined miRNA expression patterns and
mRNA expression patterns separately. In this study, we systematically analysed
miRNA-mRNA paired variations (MMPVs), which are miRNA-mRNA pairs whose pattern of
regulation can vary in association with biopathological features, such as the
oestrogen receptor (ER), TP53 and human epidermal growth factor receptor 2 (HER2)
genes, survival time, and breast cancer subtypes. We demonstrated that the
existence of MMPVs is general and widespread but that there is a general
unbalance in the distribution of MMPVs among the different biopathological
features. Furthermore, based on studying MMPVs that are related to multiple
biopathological features, we propose a potential crosstalk mechanism between ER
and HER2.