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已发表论文
长非编码 RNA LOC440040 上调可促进肿瘤发展并预测前列腺癌患者的预后不良
Authors Zhang C, Liu C, Wu J, Zheng Y, Xu H, Cheng G, Hua L
Received 30 March 2017
Accepted for publication 6 August 2017
Published 11 October 2017 Volume 2017:10 Pages 4945—4954
DOI https://doi.org/10.2147/OTT.S138354
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 3
Editor who approved publication: Prof. Dr. Geoffrey Pietersz
Background/purpose: Long noncoding
RNAs (lncRNAs) play a functional role in the initiation and progression of
prostate cancer (PCa). This study aimed to determine differentially expressed
lncRNA through high-throughput sequencing technology and investigate its
expression, biological function and clinical correlation with PCa.
Materials and methods: Candidate lncRNAs were identified through microarray screening and bioanalysis. The expression of lncRNA LOC440040 in PCa tissues and cell lines was determined by reverse-transcription polymerase chain reaction. The relationship between LOC440040 level and clinicopathological characteristics was analyzed by paired t-test or chi-square test, and its association with patient prognosis was assessed by the Kaplan–Meier method. The effects of LOC440040 on PC-3 and 22RV1 cells were evaluated by Cell Counting Kit-8 (CCK-8), migration, invasion and colony formation assays.
Results: LOC440040 expression was upregulated in PCa tissues and cell lines. Clinicopathological analysis showed that patients with high LOC440040 expression exhibited more advanced clinical features and shorter overall survival than those with low LOC440040 expression. Multivariate regression analysis revealed that LOC440040 expression was an independent prognostic factor in patients with PCa. Knockdown of LOC440040 inhibited PCa cell proliferation, migration and invasion.
Conclusion: LOC440040 may play an oncogenic role in PCa initiation and progression. This lncRNA could be a novel molecular prognostic biomarker and a potential therapeutic target for PCa.
Keywords: long noncoding RNA, LOC440040, prostate cancer, prognosis
Materials and methods: Candidate lncRNAs were identified through microarray screening and bioanalysis. The expression of lncRNA LOC440040 in PCa tissues and cell lines was determined by reverse-transcription polymerase chain reaction. The relationship between LOC440040 level and clinicopathological characteristics was analyzed by paired t-test or chi-square test, and its association with patient prognosis was assessed by the Kaplan–Meier method. The effects of LOC440040 on PC-3 and 22RV1 cells were evaluated by Cell Counting Kit-8 (CCK-8), migration, invasion and colony formation assays.
Results: LOC440040 expression was upregulated in PCa tissues and cell lines. Clinicopathological analysis showed that patients with high LOC440040 expression exhibited more advanced clinical features and shorter overall survival than those with low LOC440040 expression. Multivariate regression analysis revealed that LOC440040 expression was an independent prognostic factor in patients with PCa. Knockdown of LOC440040 inhibited PCa cell proliferation, migration and invasion.
Conclusion: LOC440040 may play an oncogenic role in PCa initiation and progression. This lncRNA could be a novel molecular prognostic biomarker and a potential therapeutic target for PCa.
Keywords: long noncoding RNA, LOC440040, prostate cancer, prognosis
