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2018 ; 15
(4
): 4105-4112
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Overexpression of long non-coding RNA CRNDE facilitates epithelial-mesenchymal
transition and correlates with poor prognosis in intrahepatic cholangiocarcinoma
#MMPMID29556285
Xia XL
; Xue D
; Xiang TH
; Xu HY
; Song DK
; Cheng PG
; Wang JQ
Oncol Lett
2018[Apr]; 15
(4
): 4105-4112
PMID29556285
show ga
The clinical significance and essential role of long non-coding RNA colorectal
neoplasia differentially expressed (lncRNA CRNDE) have been well illuminated in
various cancers. However, the function of CRNDE in intrahepatic
cholangiocarcinoma (IHCC) has not been reported at present. The aim of the
present study was to investigate the role of CRNDE in IHCC. Firstly, the relative
expression of CRNDE was observed to be upregulated in IHCC cell lines and
tissues. And high CRNDE expression was statistically associated with IHCC
differentiation grade, lymph node metastasis, tumor-nodes-metastasis (TNM) stage
and size. Survival analysis identified that high CRNDE expression is a predictor
of worse overall survival (OS) and progression-free survival (PFS) in patients
with IHCC. Moreover, high CRNDE expression was identified as an independent risk
factor of IHCC poor OS and PFS. Further studies of in vitro assays suggested that
CRNDE silencing could suppress the proliferation of HuCCT1 cells following CCK-8
and colony formation assays, while CRNDE ectopic expression in HCCC9810 cells
promoted proliferation. Moreover, the migration and invasion of HuCCT1 cells were
greatly repressed with CRNDE deficiency following Transwell and Matrigel assays.
Accordingly, the motility of HCCC9810 cells was notably accelerated with CRNDE
overexpression. Mechanistically, CRNDE was revealed to facilitate the
epithelial-mesenchymal transition (EMT) of IHCC cells. In conclusion, these
observations indicated that CRNDE could promote the clinical progression and
metastasis of IHCC by facilitating EMT. CRNDE may be a novel prognostic marker
and therapeutic target in IHCC.