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2017 ; 8
(4
): e2739
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miR-10a suppresses colorectal cancer metastasis by modulating the
epithelial-to-mesenchymal transition and anoikis
#MMPMID28383561
Liu Y
; Zhang Y
; Wu H
; Li Y
; Zhang Y
; Liu M
; Li X
; Tang H
Cell Death Dis
2017[Apr]; 8
(4
): e2739
PMID28383561
show ga
MicroRNAs (miRNAs) have a critical role in tumorigenesis and metastasis, which
are major obstacles of cancer therapy. However, the role of miRNAs in colorectal
cancer (CRC) metastasis remains poorly understood. Here, we found that miRNA-10a
(miR-10a) was upregulated in primary CRC tissues and cell line (SW480) derived
from primary CRC compared with metastatic cancer tissues in lymph node and cell
line (SW620). The differential expression of miR-10a was inversely correlated
with distant metastasis and invasion depth. miR-10a promoted migration and
invasion in vitro but inhibited metastasis in vivo by regulating the
epithelial-to-mesenchymal transition and anoikis. Furthermore, matrix
metalloproteinase 14 (MMP14) and actin gamma 1 (ACTG1) were validated as target
genes of miR-10a in CRC cells. Ectopic expression of MMP14 and ACTG1 counteracted
the decreased cell adhesion and anoikis resistance activities induced by miR-10a.
These findings not only describe the mechanism by which miR-10a suppresses CRC
metastasis but also suggest the potential prognostic and therapeutic value of
miR-10a in CRC patients.