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lncRNA and Osteosarcoma

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https://www.readbyqxmd.com/read/29136769/lncrna-p21-inhibited-the-proliferation-of-osteosarcoma-cells-via-the-mir-130b-pten-akt-signaling-pathway
#1
Weifeng Han, Junpeng Liu
Osteosarcoma (OS) is the most common type of malignant bone tumor in children and adolescents. However, the molecular mechanism underlying OS development is unclear. Here, we investigated the contribution of lncRNA-p21, a novel long non-coding RNA, on OS cell proliferation. Our results demonstrated that the expression of lncRNA-p21 was repressed in OS tissue. Growth curves and the cell colony formation assay showed that lncRNA-p21 significantly inhibited the proliferation of OS cell lines. In addition, the expression of lncRNA-p21 increased the protein levels of proliferation markers, such as Ki-67 and cyclin D1...
November 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29119050/long-noncoding-rna-nbat1-negatively-modulates-growth-and-metastasis-of-osteosarcoma-cells-through-suppression-of-mir-21
#2
Cheng Yang, Guijiang Wang, Jian Yang, Liguo Wang
Osteosarcoma (OS) is the most common primary bone malignancies. Long noncoding RNAs (lncRNAs) are key regulatory RNAs which takes part in several biological processes. LncRNA neuroblastoma associated transcript 1 (NBAT1) is a newly identified functional lncRNA. NBAT1 functions as a tumor suppressor in some cancers. However, the expression pattern, the biological function and the mechanisms of NBAT1 in OS progress have not been elucidated. In this study, for the first time, we found that NBAT1 expression is downregulated in OS tissues and cell lines and is associated with clinical stage, distant metastasis and poor prognosis...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29115574/long-non-coding-rna-snhg1-regulates-nob1-expression-by-sponging-mir-326-and-promotes-tumorigenesis-in-osteosarcoma
#3
Jiandong Wang, Lei Cao, Jianhong Wu, Qiugen Wang
The long non-coding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) has been demonstrated to participate in the deterioration of many types of cancer. However, the underlying mechanisms of SNHG1-mediating functions in osteosarcoma (OS) have yet to be elucidated. In the present study, our results showed that SNHG1 was upregulated in OS tissues and cell lines, and high SNHG1 expression predicts poor overall survival of OS patients. Knockdown of SNHG1 inhibited cell growth and metastasis of OS in vitro and in vivo...
November 3, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29113674/lncrna-zeb1-as1-predicts-unfavorable-prognosis-in-gastric-cancer
#4
Yanliang Li, Xiaowen Wen, Longgang Wang, Xianjun Sun, Heng Ma, Zheng Fu, Leping Li
OBJECTIVES: LncRNA ZEB1 Antisense 1 (ZEB1-AS1) has been suggested to be an oncogenic role in human hepatocellular carcinoma, osteosarcoma, glioma and esophageal carcinoma progression. However, the clinical significance and biological function of ZEB1-AS1 in gastric cancer is poorly understood. METHODS: Levels of ZEB1-AS1 expression in gastric cancer tissues and cell lines were detected by qRT-PCR. Loss-of-function and gain-of-function studies were conducted to explore the biological function of ZEB1-AS1 in gastric cancer cells migration, invasion and EMT process...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29104509/antisense-lncrna-foxf1-as1-promotes-migration-and-invasion-of-osteosarcoma-cells-through-the-foxf1-mmp-2-9-pathway
#5
Zhu Kun-Peng, Zhang Chun-Lin, Ma Xiao-Long
Osteosarcoma (OS) is the most common primary malignant bone cancer in children and adolescents. Long non-coding RNAs (lncRNAs) have been shown to play significant role in various cancers, including OS. In a previous study, we have reported that a novel antisense lncRNA FOXF1-AS1, also known as FENDRR, could sensitize doxorubicin-resistance of OS cells through down-regulating ABCB1 and ABCC1. Here in, the critical role of FOXF1-AS1 in regulating OS progression was further investigated. Firstly, we found that FOXF1-AS1 and its antisense transcript FOXF1 expression were positively up-regulated in OS tissues and cell lines and correlated with poor prognosis of OS patients...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29069754/lncrna-fendrr-sensitizes-doxorubicin-resistance-of-osteosarcoma-cells-through-down-regulating-abcb1-and-abcc1
#6
Zhu Kun-Peng, Ma Xiao-Long, Zhang Chun-Lin
Long noncoding RNAs (LncRNAs) act as crucial regulators in various cancers including osteosarcoma (OS), yet their potential roles and molecular mechanisms in OS chemoresistance remain unclear. In the present study, we investigated the role and potential regulatory mechanism of the most down-regulated expressed lncRNA, FENDRR screened by our previous lncRNA microarray analysis between the paired doxorubicin-resistant and sensitive human osteosarcoma cell lines (MG63/DXR vs MG63). FENDRR expression was down-regulated in the doxorubicin-resistant OS cell lines and tissues and negatively correlated to the poor prognosis of OS patients...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29048648/long-non-coding-rna-xist-regulates-pdcd4-expression-by-interacting-with-mir-21-5p-and-inhibits-osteosarcoma-cell-growth-and-metastasis
#7
Rui Zhang, Tian Xia
lncRNA-X-inactive specific transcript (lncRNA XIST) has been demonstrated to be a tumor suppressor involved in the pathogenesis and development of various cancers. However, the function of XIST and its working mechanism in osteosarcoma (OS) remain enigmatic. Firstly, we determined the expression of XIST in OS tissues and cell lines by quantitative reverse transcription-PCR (qRT-PCR) and explored whether aberrant XIST expression was associated with recurrence and short overall survival. Furthermore, the effects of XIST on osteosarcoma cells were studied by lentivirus mediated overexpression approach in vitro and in vivo...
September 19, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29047232/knockdown-of-long-non-coding-rna-neat1-inhibits-proliferation-and-invasion-and-induces-apoptosis-of-osteosarcoma-by-inhibiting-mir-194-expression
#8
Heping Wang, Yanzhang Yu, Shuxin Fan, Leifeng Luo
PURPOSE: Long non-coding RNA (lncRNA) nuclear paraspeckle assembly transcript 1 (NEAT1) has been implicated as an oncogene in the development and progression of osteosarcoma. This study aims to explore the mechanism of NEAT1 in osteosarcoma. MATERIALS AND METHODS: Expressions of NEAT1 and miR-194 in osteosarcoma tissues and cells were detected by quantitative real-time PCR. The effects of NEAT1 knockdown or miR-194 overexpression on cell proliferation, invasion, and apoptosis were determined by 3-[4, 5-dimethylthiazol-2-yl]-2, 5 diphenyl tetrazolium bromide (MTT) assay, transwell invasive assay, and flow cytometry analysis, respectively...
November 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29026319/current-advances-of-long-non-coding-rna-highly-upregulated-in-liver-cancer-in-human-tumors
#9
REVIEW
Zhonghua Ma, Hesuyuan Huang, Yetao Xu, Xuezhi He, Jirong Wang, Bingqing Hui, Hao Ji, Jing Zhou, Keming Wang
Long non-coding RNAs (lncRNAs) are a group of non-coding RNAs (ncRNAs) >200 nucleotides in length that govern diverse biological processes. Recent evidence suggests that lncRNAs are involved in cancer cell proliferation, apoptosis, invasion, migration, and metastasis. Dysregulation of lncRNAs has been observed in various tumors, and lncRNAs act as oncogenes or tumor suppressors in these malignancies. It has been revealed that lncRNA highly upregulated in liver cancer (HULC) is tightly correlated with a number of cancers such as hepatocellular carcinoma, gastric cancer, colorectal cancer, osteosarcoma, and diffuse large B-cell lymphoma...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28975992/association-between-h19-polymorphisms-and-osteosarcoma-risk
#10
T-D He, D Xu, T Sui, J-K Zhu, Z-X Wei, Y-M Wang
OBJECTIVE: The long non-coding RNA (lncRNA) H19, a maternally expressed imprinted gene, has involvement in cancer susceptibility and disease progression. However, the association between H19 polymorphisms and osteosarcoma susceptibility has remained elusive. We designed this case-control study to explore the association between H19 polymorphism and osteosarcoma risk. PATIENTS AND METHODS: In this study, we genotyped 4 tagger SNPs of the H19 gene in a case-control study including 193 osteosarcoma cases and 393 cancer-free controls...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28972855/long-noncoding-rna-mir210hg-sponges-mir-503-to-facilitate-osteosarcoma-cell-invasion-and-metastasis
#11
Jiang Li, Quan-Min Wu, Xiao-Qing Wang, Cheng-Qiang Zhang
Long noncoding RNAs (lncRNAs) have been illustrated to function as important regulator in carcinogenesis and cancer progression. However, roles of lncRNA miR210HG (miR210 host gene) in osteosarcoma remain unclear. In this study, miR210HG expression level was significantly upregulated in 55 cases of osteosarcoma tissue samples compared to adjacent normal tissue. Besides, the aberrantly enhanced miR210HG expression predicted poor prognosis and lower survival rate. In vitro, miR210HG knockdown suppressed the osteosarcoma cell proliferation, invasion, and epithelial-mesenchymal transition-related marker (N-cadherin and vimentin) expression...
October 3, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28960757/lncrna-sox2-ot-is-a-novel-prognostic-biomarker-for-osteosarcoma-patients-and-regulates-osteosarcoma-cells-proliferation-and-motility-through-modulating-sox2
#12
Zhi Wang, Meiyun Tan, Ge Chen, Zhong Li, Xiaobo Lu
Long noncoding RNA (LncRNA) SOX2 overlapping transcript (SOX2-OT) has been shown to serve an oncogenic role in human lung cancer, hepatocellular carcinoma, and gastric cancer. However, the clinical significance and biological function of lncRNA SOX2-OT in osteosarcoma are still unclear. LncRNA SOX2-OT expression was measured in osteosarcoma tissues and cell lines. Loss-of-function and gain-of-function studies were performed to observe the effects of lncRNA SOX2-OT on osteosarcoma cells proliferation, migration, invasion, and expressions of cancer stem cell biomarker...
November 2017: IUBMB Life
https://www.readbyqxmd.com/read/28902349/tug1-promotes-osteosarcoma-tumorigenesis-by-upregulating-ezh2-expression-via-mir-144-3p
#13
Jiaqing Cao, Xinyou Han, Xin Qi, Xiangyun Jin, Xiaolin Li
lncRNA-TUG1 (Taurine upregulated 1) is up-regulated and highly correlated with poor prognosis and disease status in osteosarcoma. TUG1 knockdown inhibits osteosarcoma cell proliferation, migration and invasion, and promotes apoptosis. However, its mechanism of action has not been well addressed. Growing evidence documented that lncRNA works as competing endogenous (ce)RNAs to modulate the expression and biological functions of miRNA. As a putative combining target of TUG1, miR-144-3p has been associated with the progress of osteosarcoma...
October 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28866868/the-lncrna-hnf1a-as1-is-a-negative-prognostic-factor-and-promotes-tumorigenesis-in-osteosarcoma
#14
Lijun Cai, Jinhan Lv, Yinquan Zhang, Junhong Li, Yinong Wang, Huilin Yang
Recent studies have revealed that long noncoding RNA HNF1A-antisense 1 (HNF1A-AS1) plays an important role in the development of several human malignancy entities. However, the expression and function of HNF1A-AS1 in the carcinogenesis and development of osteosarcoma remains unknown. In this study, we detected the HNF1A-AS1 levels in human osteosarcoma tissues and cell lines by quantitative real-time polymerase chain reaction (qRT-PCR), and investigated its role in osteosarcoma by using in vitro assays. Our study showed that HNF1A-AS1 expression was significantly up-regulated in human osteosarcoma tissues and cell lines compared with their normal counterparts, and its expression level was positively correlated with the distance metastasis (P = 0...
November 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28810936/lncrna-c2dat1-promotes-cell-proliferation-migration-and-invasion-by-targeting-mir-34a-5p-in-osteosarcoma-cells
#15
Daofu Jia, Yanping Niu, Dongling Li, Zhaorui Liu
Osteosarcoma is a highly aggressive malignant bone tumor with poor prognosis in cases. Evidence suggested that lncRNAsare deregulated in multiple cancers. In this study, we investigated the role of the lncRNA C2dat1 on the biological functions of osteosarcoma cells. The expressions of C2dat1, miR-34a-5p and Sirt1 in human osteosarcoma cells were altered by transfection with their specific vectors/shRNA, or mimic/inhibitor. Then, cell viability, migration, invasion and apoptosis were respectively assessed post-transfection...
August 15, 2017: Oncology Research
https://www.readbyqxmd.com/read/28750740/lncrna-odrul-contributes-to-osteosarcoma-progression-through-the-mir-3182-mmp2-axis
#16
Kun-Peng Zhu, Xiao-Long Ma, Chun-Lin Zhang
Recent findings have shown that lncRNA dysregulation is involved in many cancers, including osteosarcoma (OS). In a previous study, we reported a novel lncRNA, ODRUL, that could promote doxorubicin resistance in OS. We now report the function and underlying mechanism of ODRUL in regulating OS progression. We show that ODRUL is upregulated in OS tissues and cell lines and correlates with poor prognosis. ODRUL knockdown significantly inhibits OS cell proliferation, migration, invasion, and tumor growth in vitro and in vivo by decreasing matrix metalloproteinase (MMP) expression...
October 4, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28720111/lncrna-snhg15-contributes-to-proliferation-invasion-and-autophagy-in-osteosarcoma-cells-by-sponging-mir-141
#17
Ke Liu, Yi Hou, Yunke Liu, Jia Zheng
BACKGROUND: LncRNA small nucleolar RNA host gene 15 (SNHG15) was reported to play an oncogenic role in tumors. However, the role of SNHG15 and its molecular mechanism in osteosarcoma (OS) cells are largely unknown. METHODS: qRT-PCR was performed to evaluate the expression levels of SNHG15 and miR-141 in OS tissues and cells. Cell transfection with different siRNAs, miRNAs or pcDNAs into U2OS and MG63 cells were carried out by Lipofectamine 2000. The effects of SNHG15 and miR-141 on OS cell proliferation, invasion and the levels of autophagy-related proteins were analyzed by MTT assay, Transwell invasion/migration assay and western blot, respectively...
July 18, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28688193/knockdown-of-lncrna-hulc-inhibits-proliferation-migration-invasion-and-promotes-apoptosis-by-sponging-mir-122-in-osteosarcoma
#18
Daliang Kong, Yang Wang
Osteosarcoma is a rare malignant bone tumor with high degree of malignancy. HULC (highly upregulated in liver cancer), a long noncoding RNA (lncRNA) was involved in hepatocellular carcinoma development and progression, but its underlying mechanism in osteosarcoma is unknown. The aim of this study was to explore the functional role of HULC in osteosarcoma. The study was conducted in human osteosarcoma cell lines and the expression of HULC in the cell lines was detected by qRT-PCR. Furthermore, the effects of HULC on tumorigenicity of osteosarcoma cells were evaluated by in vitro assays...
July 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28679390/lncrna-ancr-regulates-the-cell-growth-of-osteosarcoma-by-interacting-with-ezh2-and-affecting-the-expression-of-p21-and-p27
#19
Fei Zhang, Hao Peng
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...
July 5, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28642170/lncrna-dancr-promotes-tumor-progression-and-cancer-stemness-features-in-osteosarcoma-by-upregulating-axl-via-mir-33a-5p-inhibition
#20
Nian Jiang, Xuedi Wang, Xianbiao Xie, Yan Liao, Ni Liu, Junfeng Liu, Nabo Miao, Jingnan Shen, Tingsheng Peng
lncRNAs regulate the initiation and progression of osteosarcoma, although the mechanism by which this occurs remains unknown. The present study shows that over-expression of the lncRNA DANCR increased osteosarcoma cell proliferation, migration, and invasion in vitro, as well as promoted xenograft tumor growth and lung metastasis in vivo. Mechanistically, DANCR promoted osteosarcoma progression by mediating cancer stem cells (CSCs) features. Moreover, pull-down assays and luciferase reporter assays indicated that DANCR upregulated expression of the receptor tyrosine kinase AXL by competitively binding to miR-33a-5p...
October 1, 2017: Cancer Letters
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