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Long non‐coding RNA LINC00675 is associated with bladder cancer metastasis and patient survival
Author(s) -
Liu Xing,
Ke Jingwei,
Gu Li,
Tang Hai,
Luo Xiaoqin
Publication year - 2020
Publication title -
the journal of gene medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.689
H-Index - 91
eISSN - 1521-2254
pISSN - 1099-498X
DOI - 10.1002/jgm.3210
Subject(s) - bladder cancer , gene knockdown , ectopic expression , cancer research , metastasis , long non coding rna , rna , biology , blot , immunohistochemistry , cancer , medicine , oncology , gene , biochemistry
Background Muscle‐invasive bladder cancer (MIBC), a bladder cancer that spreads into the detrusor muscle of the bladder, leads to a poor outcome. Long noncoding RNA LINC00675 has been reported to play import roles in several cancer types, although its biological function and underlying mechanism in MIBC remain largely unclear. Methods Eighty‐nine patients with MIBC were enrolled in the present study. RNA expression was measured using a quantitative reverse transcription‐polymerase chain reaction. Protein expression was detected using western blotting. Transwell assays were performed to analyze the abilities of bladder cancer cells to migrate and invade. An RNA microarray was carried out to analyze LINC00675‐regulated mRNAs in bladder cancer cells. Results We found that LINC00675 expression was decreased in MIBC tissues compared to matched normal tissues, and was correlated with lymph node‐metastatic MIBC. MIBC patients with low expression of LINC00675 had worse survival rates than those with high expression. Functional investigation showed that ectopic expression of LINC00675 inhibited bladder cancer cell migration, invasion and proliferation, whereas LINC00675 knockdown presented an opposite effect. Mechanistically, we found that LINC00675 inhibited β‐catenin and its downstream gene expression. Conclusions The findings of the present study suggest that LINC00675 regulates β‐catenin expression, and is associated with bladder cancer metastasis and patient survival.