Abstract:
:The nodal regulatory properties of microRNAs (miRNA) in metastatic cancer may offer new targets for therapeutic control. Here, we report that upregulation of miR-483-5p is correlated with the progression of human lung adenocarcinoma. miR-483-5p promotes the epithelial-mesenchymal transition (EMT) accompanied by invasive and metastatic properties of lung adenocarcinoma. Mechanistically, miR-483-5p is activated by the WNT/β-catenin signaling pathway and exerts its prometastatic function by directly targeting the Rho GDP dissociation inhibitor alpha (RhoGDI1) and activated leukocyte cell adhesion molecule (ALCAM), two putative metastasis suppressors. Furthermore, we found that downregulation of RhoGDI1 enhances expression of Snail, thereby promoting EMT. Importantly, miR-483-5p levels are positively correlated with β-catenin expression, but are negatively correlated with the levels of RhoGDI1 and ALCAM in human lung adenocarcinoma. Our findings reveal that miR-483-5p is a critical β-catenin-activated prometastatic miRNA and a negative regulator of the metastasis suppressors RhoGDI1 and ALCAM.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Song Q,Xu Y,Yang C,Chen Z,Jia C,Chen J,Zhang Y,Lai P,Fan X,Zhou X,Lin J,Li M,Ma W,Luo S,Bai Xdoi
10.1158/0008-5472.CAN-13-2193subject
Has Abstractpub_date
2014-06-01 00:00:00pages
3031-42issue
11eissn
0008-5472issn
1538-7445pii
0008-5472.CAN-13-2193journal_volume
74pub_type
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