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Antisense cancer

Farkhunda Nadeem, Muhammad Hanif, Akhtar Ahmed, Qamar Jamal, Adnan Khan
Background & Objective: MiRNAs are a systematic class of small non-coding RNAs with impending role as tumor biomarkers. Our objective was to identify the level of expression of Mir-195 in patients with breast cancer along with its correlation with clinicopathologic features. Methods: A total of 209 females in which 139 histologically diagnosed breast cancer (BC) cases and 70 healthy controls matched for age, their relative clinical and histopathological findings were recorded from their laboratory reports and hospital record of the patients...
September 2017: Pakistan Journal of Medical Sciences Quarterly
Shiv Prakash Verma, Parimal Das
Transcription Factor E3 (TFE3) translocation is found in a group of different type of cancers and most of the translocations are located in the 5' region of TFE3 which may be considered as Breakpoint Region (BR). In our In silico study by QGRS mapper and non BdB web servers we found a Potential G-quadruplex forming Sequence (PQS) in the intron 2 of TFE3 gene. In vitro G-quadruplex formation was shown by native PAGE in presence of Pyridostatin(PDS), which with inter molecular secondary structure caused reduced mobility to migrate slower...
November 11, 2017: Biochimica et Biophysica Acta
Xinyang Lu, Zhiqiang Liu, Xiaofei Ning, Lunhua Huang, Biao Jiang
The long non-coding RNA HOX transcript antisense RNA (HOTAIR) has been found overexpressed in many human malignancies and involved in tumor progression and metastasis. Although the downstream target through which HOTAIR modulates tumor metastasis is not well-known, evidence suggests that microRNA-197 (miR-197) might be involved in this event. In the present study, the significance of HOTAIR and miR-197 in the progression of colorectal cancer were detected in vitro and in vivo. We found that HOTAIR expression was significantly increased in colorectal cancer cells and tissues...
November 14, 2017: Oncology Research
Dan Dong, Zhongyi Mu, Wei Wang, Na Xin, Xiaowen Song, Yue Shao, Chenghai Zhao
A number of studies have revealed that zinc finger antisense 1 (ZFAS1), a long noncoding RNA (lncRNA), is aberrantly regulated in various cancers, and high ZFAS1 expression is associated with poor prognosis and increased risk of lymph node metastasis (LNM). This meta-analysis was conducted to identify the potential value of ZFAS1 as a biomarker for cancer prognosis. We searched electronic database PubMed, Web of Science, and China Wanfang Data (up to June 1, 2017) to collect all relevant studies and explore the association of ZFAS1 expression with overall survival (OS) and LNM...
October 13, 2017: Oncotarget
H-W Huang, H Xie, X Ma, F Zhao, Y Gao
OBJECTIVE: To investigate the expression level of long non-coding RNA promoter of CDKN1A antisense DNA damage activated RNA (lncRNA PANDAR) in cervical cancer and to analyze the effects of PANDAR on biological behaviors of cervical cancer and the clinical significance of PANDAR. PATIENTS AND METHODS: A total of 68 pairs of cervical cancer and paired cancer-adjacent tissue specimens were collected. The relative expression of PANDAR in tissues was detected by quantitative Real-time polymerase chain reaction (qRT-PCR) so as to analyze the relationship between PANDAR and clinicopathological factors of cervical cancer and evaluate its clinical significance...
October 2017: European Review for Medical and Pharmacological Sciences
Gangling Tong, Xuan Wu, Boran Cheng, Liang Li, Xi Li, Zhu Li, Qiaohong Nong, Xiaoqiu Chen, Yajie Liu, Shubin Wang
Colorectal cancer (CRC) remains one of the most common cancers worldwide. Increasing evidence indicates that long non-coding RNAs (lncRNAs) regulate diverse cellular processes, including cell growth, differentiation, apoptosis, and cancer progression. However, the function of lncRNAs in the progression of CRC remains largely unknown. Here, we reported that HOXA cluster antisense RNA2 (HOXA-AS2) was upregulated in CRC. Increased HOXA-AS2 expression in CRC was associated with larger tumor size and higher clinical stage...
2017: American Journal of Translational Research
Da-Ni Zhong, Yi-Huan Luo, Wei-Jia Mo, Xin Zhang, Zhong Tan, Na Zhao, Si-Min Pang, Gang Chen, Min-Hua Rong, Wei Tang
HOX transcript antisense RNA (HOTAIR), a newly discovered long noncoding RNA (lncRNA), has been reported to be a poor prognostic marker in many types of cancers. The current study attempted to investigate the biological roles and clinicopathlogical implications of HOTAIR in hepatocellular carcinoma (HCC), as well as understand the molecular mechanisms of HOTAIR in HCC progression. HOTAIR expression in 95 HCC patients with paired HCC tissues and adjacent non‑cancer tissues were investigated using quantitative reverse transcription‑polymerase chain reaction...
November 7, 2017: Molecular Medicine Reports
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
Xueying Yang, Chi Chiu Wang, Wayne Yuk Wai Lee, Jone Trovik, Tony Kwok Hung Chung, Joseph Kwong
Endometrioid endometrial carcinoma (EEC) is one of the common causes of cancer-related mortality in women. Mounting evidences suggest that long noncoding RNAs (lncRNAs) function in multiple cancers. In this study, we discovered that HAND2-AS1, a lncRNA transcribed antisense adjacent to Heart and Neural Crest Derivatives Expressed 2 (HAND2) in chromosome 4q33-34, is significantly down-regulated in EEC. HAND2-AS1 and HAND2 were frequently down-regulated in EEC tissues, especially in poor differentiated tumor tissues...
October 26, 2017: Cancer Letters
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
Pradeep Kumar Kopparapu, Mohammad Hamdy Abdelrazak Morsy, Chandrasekhar Kanduri, Meena Kanduri
The Ten-eleven-translocation 1 (TET1) protein is a member of dioxygenase protein family that catalyzes the oxidation of 5-methylcytosine to 5-hydroxymethylcytosine. TET1 is differentially expressed in many cancers, including leukemia. However, very little is known about mechanism behind TET1 deregulation. Previously, by characterizing global methylation patterns in CLL patients using MBD-seq, we found TET1 as one of the differentially methylated regions with gene-body hypermethylation. Herein, we characterize mechanisms that control TET1 gene activity at the transcriptional level...
September 29, 2017: Oncotarget
Jun Liu, Malini Bhadra, Joanna Rajeswary Sinnakannu, Wan Lin Yue, Cheryl Weiqi Tan, Frank Rigo, S Tiong Ong, Xavier Roca
Many tyrosine kinase-driven cancers, including chronic myeloid leukemia (CML), are characterized by high response rates to specific tyrosine kinase inhibitors (TKIs) like imatinib. In East Asians, primary imatinib resistance is caused by a deletion polymorphism in Intron 2 of the BIM gene, whose product is required for TKI-induced apoptosis. The deletion biases BIM splicing from exon 4 to exon 3, generating splice isoforms lacking the exon 4-encoded pro-apoptotic BH3 domain, which impairs the ability of TKIs to induce apoptosis...
September 29, 2017: Oncotarget
Yonghao Zhan, Yifan Li, Bao Guan, Zicheng Wang, Ding Peng, Zhicong Chen, Anbang He, Shiming He, Yanqing Gong, Xuesong Li, Liqun Zhou
Emerging evidences have indicated that long non-coding RNAs (lncRNAs) are pivotal regulators of tumor development and progression. HNF1A-AS1 (HNF1A antisense RNA 1, C12 or f27) is a novel long non-coding RNA that acts as a potential biomarker and is involved in development and progression of several cancers. Nevertheless, we know nothing about the clinical significance and molecular mechanism of HNF1A-AS1 in bladder cancer. In this study, we found that HNF1A-AS1 is significantly up-regulated in bladder cancer...
September 29, 2017: Oncotarget
Jorge Matias Caviglia, Jun Yan, Myoung-Kuk Jang, Geum-Youn Gwak, Silvia Affo, Lexing Yu, Peter Olinga, Richard A Friedman, Xin Chen, Robert F Schwabe
Fibrosis and cancer represent two major complications of chronic liver disease. MicroRNAs have been implicated in the development of fibrosis and cancer, thus constituting potential therapeutic targets. Here, we investigated the role of miR-21, a microRNA that has been implicated in the development of fibrosis in multiple organs and also been suggested to act as "oncomir". Accordingly, miR-21 was the microRNA that showed the strongest upregulation in activated hepatic stellate cells (HSC) in multiple models of fibrogenesis, with an 8- to 24-fold induction compared to quiescent HSC...
November 1, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Chuanyao Cheng, Yaguang Qin, Qiongjie Zhi, Jianjun Wang, Changjiang Qin
HOX transcript antisense RNA (HOTAIR), a well-known long non-coding RNA (lncRNA), has been reported to be related to cisplatin (DDP) resistance in gastric cancers. However, the molecular mechanism of HOTAIR in DDP resistance of gastric cancer (GC) remains largely undefined. The aim of this study was to investigate the role and underlying mechanism of HOTAIR in regulating cisplatin resistance of GC. The results showed that HOTAIR was over-expressed in GC tissues and GC cell lines, while miR-34a was low-expressed...
October 26, 2017: International Journal of Biological Macromolecules
Wei Li, Na Li, Xinmei Kang, Ke Shi
BACKGROUND: Recent studies have indicated that long non-coding RNA actin filament-associated protein 1 antisense RNA 1 (lncRNA AFAP1-AS1) was increased in non-small cell lung cancer and associated with unfavorable patient prognosis. AFAP1-AS1 also participates in promoting invasion and metastasis in non-small cell lung cancer cells. However, the diagnosis value of serum AFAP1-AS1 in non-small cell lung cancer was unclear. In this study, we aimed to explore whether circulating AFAP1-AS1 can be used as a diagnostic biomarker for non-small cell lung cancer...
October 30, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
Ying Wu, Qian Xiong, Siting Li, Xue Yang, Feng Ge
Long non-coding RNA HOX transcript antisense RNA (HOTAIR) is involved in human tumorigenesis and is dysregulated in hepatocellular carcinoma (HCC). However, the molecular mechanisms underlying HOTAIR functions in HCC are largely unknown. Here, we employed an integrated transcriptomic and quantitative proteomic analysis to systematically explore the regulatory role of HOTAIR in HCC. A total of 673 transcripts and 293 proteins were found to be dysregulated after HOTAIR inhibition. Bioinformatics studies indicated that differentially expressed genes (DEGs) and differentially expressed proteins (DEPs) are involved in many biological processes, especially cancer-related signaling pathways...
October 27, 2017: Molecular & Cellular Proteomics: MCP
Giuseppe Troiano, Vito Carlo Alberto Caponio, Linda Boldrup, Xiaolian Gu, Lorenzo Lo Muzio, Nicola Sgaramella, Lixiao Wang, Karin Nylander
INTRODUCTION: Long noncoding RNAs (lncRNAs) are often dysregulated in cancer tissue and seem to play an important role in neoplastic processes. Recent studies have shown that the HOX transcript antisense intergenic RNA (HOTAIR) may play a role as a marker of prognosis in squamous cell carcinoma of the head and neck (SCCHN). The aim of this study was to perform a meta-analysis of studies focused on the prognostic role of HOTAIR in SCCHN. RESULTS: At the end of the selection process, four studies were considered eligible for inclusion in the meta-analysis, comprising a total of 271 patients...
September 22, 2017: Oncotarget
Ranran Wang, Bin Yan, Zheng Li, Yiqun Jiang, Chao Mao, Xiang Wang, Xinmin Zhou
Evidence suggests that both 14-3-3σ and long non-coding RNA HOX transcript antisense RNA (HOTAIR) are involved in the tumorigenesis and progression of lung cancer. In the present study, the potential association between 14-3-3σ and HOTAIR in non-small cell lung cancer (NSCLC) was investigated. In tissue samples collected from 54 patients with NSCLC, expression of HOTAIR and 14-3-3σ was analyzed by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). After stable ectopic expression of HOTAIR and stable HOTAIR knockdown in PC9 cancer cells, the effect of HOTAIR on levels of mRNA and protein 14-3-3σ expression levels were detected using RT-qPCR and western blotting, respectively...
November 2017: Experimental and Therapeutic Medicine
Peng-Ju Ma, Qing-Kai Guan, Da-Wei Xu, Jia Zhao, Nan Qin, Bao-Zhe Jin
BACKGROUND: LncRNA promoter of CDKN1A antisense DNA damage activated RNA (PANDAR) is reportedly dysregulated in various cancers. We performed this meta-analysis to clarify the efficacy of PANDAR as a prognostic marker in malignant tumors. METHODS: The PubMed, Medline, OVID, Cochrane Library, and Web of Science databases were searched from inception to July 3, 2017. Hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated to explore the relationship between PANDAR expression and overall survival (OS)...
October 21, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
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