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2017 ; 12
(1
): 103
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LncRNA-ANCR regulates the cell growth of osteosarcoma by interacting with EZH2
and affecting the expression of p21 and p27
#MMPMID28679390
Zhang F
; Peng H
J Orthop Surg Res
2017[Jul]; 12
(1
): 103
PMID28679390
show ga
BACKGROUND: Osteosarcoma (OS) is one of the most common malignant tumors
developed in the bone. EZH2 has been found to play pivotal roles in the
development of various cancers. LncRNA-ANCR (anti-differentiation ncRNA) has been
reported to interact with EZH2 and regulated osteoblast differentiation. Our
study aimed to investigate the effect of lncRNA-ANCR on the tumorigenesis of
osteosarcoma and explore the underlying molecular mechanism. METHODS: RT-PCR was
performed to detect the messenger RNA (mRNA) levels of lncRNA-ANCR, EZH2, p21,
and p27 in OS tissues and cell lines. The cell proliferation, transwell invasion,
and migration assays were conducted to evaluate the influence of lncRNA-ANCR
depletion on the growth of OS cells. RNA pull-down assay was carried out to
detect the interaction between lncRNA-ANCR and EZH2. Correlation between the
expression of lncRNA-ANCR and the expression of EZH2 were analyzed by
cross-tabulation. RESULTS: LncRNA-ANCR is highly expressed in both OS tissues and
cell lines. Reduced expression of lncRNA-ANCR inhibited the cell proliferation,
invasion, and migration of OS cells. The cell apoptosis rate was also increased
with the overexpression of lncRNA-ANCR. Mechanistically, downregulation of
lncRNA-ANCR reduced the mRNA level of EZH2 and increased the expression of p21
and p27 at both mRNA and protein levels. LncRNA-ANCR interacted with EZH2 and
their expression abundance was positively correlated in OS patients. CONCLUSION:
LncRNA-ANCR inhibited the cell proliferation, migration, and invasion of OS cells
possibly through interacting with EZH2 and regulating the expression of p21 and
p27.