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2017 ; 8
(48
): 84086-84101
Nephropedia Template TP
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English Wikipedia
LncRNA SNHG12 contributes to multidrug resistance through activating the
MAPK/Slug pathway by sponging miR-181a in non-small cell lung cancer
#MMPMID29137407
Wang P
; Chen D
; Ma H
; Li Y
Oncotarget
2017[Oct]; 8
(48
): 84086-84101
PMID29137407
show ga
Small nucleolar RNA host gene 12 (SNHG12), as one of the long non-coding RNAs
(lncRNAs), plays an oncogenic role in various cancers, however, its role in the
chemoresistance of non-small cell lung cancer (NSCLC) is unclear. In this study,
we investigated the effect of SNHG12 on multidrug resistance (MDR) in NSCLC. The
results showed that SNHG12 was high-expressed and miR-181a was low-expressed in
NSCLC tumor tissues and cell lines. Knockdown of SNHG12 reversed the resistance
to cisplatin, paclitaxel and gefitinib in A549/DDP, A549/PTX and PC9/AB2 cells
through inducing cell apoptosis. Moreover, SNHG12 silencing suppressed MAPK1 and
MAP2K1 expression by upregulating miR-181a, leading to inhibition of the
MAPK/Slug pathway through decreasing phosphorylated MAPK1 (p-MAPK1),
phosphorylated MAP2K1 (p-MAP2K1) and Slug levels. Furthermore, downregulation of
SNHG12 enhanced the sensitivity of NSCLC cells to cisplatin in nude mice.
Overall, our study is the first to identify a SNHG12-miR-181a-MAPK/Slug axis to
elucidate in part how SNHG12 exert functions in NSCLC MDR, providing a novel
therapeutic target to overcome MDR in NSCLC.