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lncRNA and Osteosarcoma

Zenghui Gu, Zhenhai Hou, Longbao Zheng, Xinqiang Wang, Liangbang Wu, Cheng Zhang
Osteosarcoma is a prevalent primary malignant tumor and long non-coding RNAs (lncRNAs) have been validated to modulate the osteosarcoma tumorigenesis. In present study, our research team investigates the role of a novel identified lncRNA DICER1-AS1 on the tumor progression and autophagy. Results showed that lncRNA DICER1-AS1 was up-regulated in osteosarcoma cells using microarray analysis and RT-PCR. Cellular functional experiments revealed that DICER1-AS1 knockdown suppressed the proliferation, migration, invasion and autophagy of osteosarcoma cells in vitro...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Z-X Chen, C-P Chen, N Zhang, T-X Wang
OBJECTIVE: To investigate the potential role of Long non-coding RNA (lncRNA) FER1L4 in the diagnosis and prognostic assessment of osteosarcoma. PATIENTS AND METHODS: LncRNA FER1L4 expression in osteosarcoma samples was detected by real-time PCR. The Kaplan-Meier method was used to analyze the relationship between lncRNA FER1L4 expression and the survival time of patients. RESULTS: LncRNA FER1L4 expression was decreased in osteosarcoma samples...
April 2018: European Review for Medical and Pharmacological Sciences
Yong Wang, Xiandong Zeng, Ningning Wang, Wei Zhao, Xi Zhang, Songling Teng, Yueyan Zhang, Zhi Lu
BACKGROUND: Accumulating evidences indicate that non-coding RNAs (ncRNAs) including long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) acting as crucial regulators in osteosarcoma (OS). Previously, we reported that Rho associated coiled-coil containing protein kinase 1 (ROCK1), a metastatic-related gene was negatively regulated by microRNA-335-5p (miR-335-5p) and work as an oncogene in osteosarcoma. Whether any long non-coding RNAs participate in the upstream of miR-335-5p/ROCK1 axial remains unclear...
May 12, 2018: Molecular Cancer
Huizhong Xiao, Fuyou Zhang, Yifan Zou, Jianfa Li, Yuchen Liu, Weiren Huang
Long non-coding RNAs (lncRNAs) are a class of transcriptional RNA molecules with a length of greater than 200 nucleotides that function as regulatory factors in many human diseases. Studies have shown that lncRNAs are involved in multiple cellular processes, including proliferation, apoptosis, migration, and invasion. In this report, a long non-coding RNA-ATB that is overexpressed in various tumor tissues and cell lines was investigated. Recent evidence suggests that ATB is dysfunctional in a variety of cancers, including hepatocellular carcinoma, gastric cancer (GC), colorectal cancer (CRC), breast cancer (BC), prostate cancer, renal cell carcinoma, non-small cell lung cancer (NSCLC), pancreatic cancer, osteosarcoma, and glioma...
2018: Frontiers in Physiology
G Kong, X-J Qi, J-F Wang
OBJECTIVE: To investigate the expression of long non-coding RNA (LncRNA) LET in osteosarcoma and its effect on the proliferation, apoptosis, migration and invasion of osteosarcoma cells. PATIENTS AND METHODS: The expression of lncRNA LET was detected in osteosarcoma tissues and cell lines (MG63 and hFOB1.19). MG63 cells stably overexpressing lncRNA LET were constructed by lentiviral. The effects of lncRNA LET overexpression on the proliferation, apoptosis, migration and invasion of osteosarcoma cells were detected by cell counting kit-8 (CCK-8), flow cytometry and transwell chamber assay...
March 2018: European Review for Medical and Pharmacological Sciences
Wangzhen Chen, Meikai Chen, Yifan Xu, Xuerong Chen, Ping Zhou, Xiaofeng Zhao, Fei Pang, Wenqing Liang
Long non-coding RNA (LncRNA) dysregulation is associated with human osteosarcoma (OS) cell progression. Recent studies have characterized a novel but ultra-conserved LncRNA THOR ("Lnc-THOR") as a cancer-specific LncRNA, mediating cell growth. In the current study, we show that Lnc-THOR is expressed in established and primary human OS cells. It is also detected in human OS tissues, but not in the surrounding normal bone tissues. siRNA-induced knockdown or CRSIPR/Cas9-mediated knockout Lnc-THOR significantly inhibited human OS cell survival and proliferation...
April 4, 2018: Biochemical and Biophysical Research Communications
Gong Cheng, Baoshan Li, XiuJiang Sun, Zhilin Cao, GuoDong Zhang, ZhongYuan Zhao, Yong Zhao, Qian Yu, WenGuang Liu
No abstract text is available yet for this article.
March 27, 2018: Biochemical and Biophysical Research Communications
Yang Qu, Shuang Zheng, Mingyang Kang, Rongpeng Dong, Haohan Zhou, Dezhi Zhao, Jianwu Zhao
Long non-coding RNA HOXD-AS1 (HOXD-AS1) has recently been shown to be involved in the development and progression of multiple cancers. However, the expression, significance, and biological function of HOXD-AS1 in osteosarcoma (OS) remain unknown. Here, we found that the expression level of HOXD-AS1 was significantly upregulated in OS tissues and cells. Furthermore, high expression of HOXD-AS1 was positively associated with the clinical and pathological characteristics of OS, including tumor stage and lymph node metastasis, and negatively correlated with overall survival rate...
February 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Jun Zhao, Shi-Tang Ma
The present study aimed to investigate the role of long non-coding RNA (lncRNA) H19 in the development of osteosarcoma and to determine the underlying mechanism involved. A total of 40 patients with osteosarcoma were selected and the expression level of H19 in tumor tissue and adjacent healthy tissue was detected by reverse transcription‑quantitative polymerase chain reaction. Survival curves were plotted using the Kaplan‑Meier method to investigate the prognostic value of H19 expression level for patients with osteosarcoma...
March 14, 2018: Molecular Medicine Reports
Yunxing Zhang, Wang Meng, Hongxia Cui
LncRNA CBR3-AS1 has been suggested to promote malignancy in several types of human cancers, but the clinical significance and biological function of lncRNA CBR3-AS1 in osteosarcoma is still unknown. The purpose of our study is to explore the clinical significance of lncRNA CBR3-AS1 in osteosarcoma patients and the biological function in osteosarcoma cells. In our results, we found lncRNA CBR3-AS1 was highly-expressed in osteosarcoma tissues and cell lines, and associated with Enneking stage, distant metastasis and histological grade...
March 16, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Genglong Zhu, Xialei Liu, Yonghui Su, Fangen Kong, Xiaopeng Hong, Zhidong Lin
Liver cancer is one of the most common malignancies in the world with a leading cause of cancer-related mortality. Accumulating evidences have highlighted the critical role of long noncoding RNAs (lncRNAs) in various cancers. The present study aimed to explore the role of lncRNA urothelial carcinoma associated 1 (UCA1) in cell growth and migration in MHCC97 cells and its underlying mechanism. Firstly, we assessed the expression of UCA1 in MHCC97 and other three cell lines by qRT-PCR. Then, the expression of UCA1, miR-301a and CXCR4 in MHCC97 cells were altered by transient transfection...
March 9, 2018: Oncology Research
Chengwei Zhou, Jianxiang Xu, Jinti Lin, Renjin Lin, Kai Chen, Jianzhong Kong, Xiaolong Shui
Long non-coding RNA (lncRNA) FEZF1-AS1 was demonstrated to facilitate cell proliferation and migration in some cancers.However, the functions of FEZF1-AS1 and its molecular mechanism in osteosarcoma remain to be elucidated. In our study, we found that the expression of FEZF1-AS1 was up-regulated in osteosarcoma samples and cell lines compared with normal tissues or cells. Besides, we showed that the expression levels of FEZF1-AS1 in osteosarcoma patients were positively correlated with tumor metastasis and TNM stage...
February 22, 2018: Oncology Research
X-D Qi, S-Y Xu, Y Song
OBJECTIVE: Aberrant expression of long noncoding RNA (lncRNA) is associated with carcinogenesis of various tumors. The aim of current study was to explore the clinical significance and biological function of long non-coding RNA HOST2 (lnc-HOST2) in patients with osteosarcoma. PATIENTS AND METHODS: The expression of lnc-HOST2 was detected by quantitative Real-time PCR (qRT-PCR) in 163 osteosarcoma specimens and matched the normal tissues. The significance of lnc-HOST2 as a prognostic factor as well as its relationship with survival was determined...
February 2018: European Review for Medical and Pharmacological Sciences
Lihua Yan, Xiangkun Wu, Xianzhe Yin, Feng Du, Yongxi Liu, Xunmeng Ding
Long non-coding RNA (lncRNA) plays important roles in tumour progression. Accumulating studies demonstrated that lncRNA colon cancer-associated transcript 2 (CCAT2) acted as an oncogene in many tumours. However, the role of CCAT2 in the development of osteosarcoma has not been elucidated. In our study, we indicated that CCAT2 expression was up-regulated in osteosarcoma tissues and cell lines (SOSP-9607, MG-63, U2OS and SAOS-2). In addition, osteosarcoma cases with higher CCAT2 expression had a poorer disease-free survival and shorter the overall survival time compared to those with lower expression...
May 2018: Journal of Cellular and Molecular Medicine
Xiaobai Liu, Jian Zheng, Yixue Xue, Chengbin Qu, Jiajia Chen, Zhenhua Wang, Zhen Li, Lei Zhang, Yunhui Liu
Long non-coding RNA (lncRNA) dysregulation is involved in tumorigenesis and regulation of diverse cellular processes in gliomas. lncRNA SNHG12 is upregulated and promotes cell growth in human osteosarcoma cells. TAR-DNA binding protein 43 (TDP43) functions as an oncogene in various tumors by modulating RNA expression. Downregulation of TDP43 or SNHG12 significantly inhibited malignant biological behaviors of glioma cells. miR-195, downregulated in glioma tissues and cells, significantly impaired the malignant progression of glioma cells...
March 2, 2018: Molecular Therapy. Nucleic Acids
Zheng Li, Jianxiong Shen, Matthew T V Chan, William Ka Kei Wu
Accumulating evidence from genome-wide analysis and functional studies has begun to unveil the important role of long non-coding RNAs (lncRNAs) in cancer development. The lncRNA SPRY4-IT1 is derived from an intron of SPRY4 gene and was originally reported to be upregulated in melanoma in which it functioned as an oncogene. Since this discovery, an increasing number of studies have investigated the expression and function of SPRY4-IT1 in human cancers. Aberrant expression of SPRY4-IT1 has now been documented in different cancer types, including osteosarcoma, breast, renal, oesophageal and prostate cancers...
February 27, 2018: Cell Proliferation
Wanchun Wang, Ding Chen, Kewei Zhu
BACKGROUND: Doxorubicin is the preferred chemotherapeuticdrug for osteosarcoma treatment of which clinical efficacy is limited because of its chemo-resistance and cardiac toxicity. It is necessary to develop the combination regimen with complementary molecular mechanisms to reduce the side effects and enhance sensitivity of Doxorubicin. EGCG is a polyphenol in green tea with antitumor bioactivity,which has been found that its combination with certain chemotherapeutic drugs could improve the antitumor efficiency...
February 23, 2018: Journal of Experimental & Clinical Cancer Research: CR
Yao Shi, Chen Lv, Li Shi, Guanjun Tu
Osteosarcoma is known as a malignant tumour with a high mortality rate in orthopaedic settings; however, the factors associated with its degree of malignancy and the biological response remains to be elucidated. Although the essential role of the long noncoding RNA (lncRNA) maternally expressed 3 (MEG3) has been recently reported, its biological functions and regulatory mechanism in osteosarcoma cells have not yet been reported. In the present study, reverse transcription-quantitative polymerase chain reaction analysis revealed that the expression of MEG3 in MG63 cells was lower compared with in hFOB1...
February 2018: Oncology Letters
Xuedong Zhang, Yakui Zhang, Yong Mao, Xinlong Ma
Introduction: Osteosarcoma is a malignant primary bone cancer and is lethal to children and adolescents. Recently, the dysregulation of long noncoding RNAs (lncRNAs) has been shown in various types of cancers. Aim: The present study aimed to examine the role of the lncRNA prostate cancer-associated transcript 1 (PCAT1) in osteosarcoma progression. Materials and methods: The expression levels of relevant genes in clinical samples and cell lines were determined by quantitative real-time polymerase chain reaction...
2018: OncoTargets and Therapy
Yang Wang, Daliang Kong
BACKGROUND/AIMS: LncRNA GAS5, a growth suppressor, has been reported to exert anti-tumor actions in various cancers, whereas the exact mechanism underling the anti-tumor action is still unclear. This study was aimed to investigate the effect of lncRNA GAS5 on osteosarcoma and tried to decode the underling mechanisms. METHODS: Expressions of lncRNA GAS5 in MG-63 cells were silenced by shRNA transfection, while were overexpressed by vector transfection. Cell viability, migration, invasion and apoptosis were respectively assessed by MTT, Transwell assay and flow cytometry...
2018: Cellular Physiology and Biochemistry
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