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cancer noncoding RNA

Liyun Cao, Chi Hyun Lee, Jing Ning, Beverly C Handy, Elizabeth A Wagar, Qing H Meng
CONTEXT: - Prostate cancer antigen 3 (PCA3) is a noncoding RNA that is highly overexpressed in prostate cancer (PCa) tissue and excreted in urine in patients with PCa. OBJECTIVE: - To assess the clinical utility of urinary PCA3 in men at risk of PCa. DESIGN: - We retrospectively reviewed a cohort of 271 men (median age, 63 years) with elevated prostate-specific antigen (PSA), and/or strong family history, and/or abnormal digital rectal examination findings...
March 16, 2018: Archives of Pathology & Laboratory Medicine
Jianwen Long, Qiqige Menggen, Qimige Wuren, Quan Shi, Xianming Pi
BACKGROUND Malignant melanoma is a class of malignant tumors derived from melanocytes. lncRNAs have been considered as pro-/anti-tumor factors in progression of cancers. The function of lncRNA TUG1 on growth of melanoma was investigated in this study. MATERIAL AND METHODS The TUG1 and miR-129-5p expression were examined via qRT-PCR. The protein expression was investigated by Western blotting assay. Luciferase reporter assay was used to assess if lncRNA TUG1 can bind to miR-129-5p and if miR-129-5p can target AEG1 mRNA...
March 15, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Yufeng Du, Xiaoyan Hao, Xuejun Liu
The present study aimed to investigate the expression of long non-coding RNA (lncRNA) cyclin dependent kinase inhibitor-2B-antisense RNA 1 CDKN2B-AS1 in patients with peripheral blood of idiopathic pulmonary fibrosis (IPF). A total of 24 patients with IPF and 24 healthy controls were included in the study, four patients with IPF and four healthy controls were selected randomly to extract RNA. There were no other diseases such as hypertension and diabetes in the two groups. RNA from peripheral blood was extracted by high-throughput sequencing and bioinformatics analysis was performed...
April 2018: Oncology Letters
Paulo P Amaral, Tommaso Leonardi, Namshik Han, Emmanuelle Viré, Dennis K Gascoigne, Raúl Arias-Carrasco, Magdalena Büscher, Luca Pandolfini, Anda Zhang, Stefano Pluchino, Vinicius Maracaja-Coutinho, Helder I Nakaya, Martin Hemberg, Ramin Shiekhattar, Anton J Enright, Tony Kouzarides
BACKGROUND: The mammalian genome is transcribed into large numbers of long noncoding RNAs (lncRNAs), but the definition of functional lncRNA groups has proven difficult, partly due to their low sequence conservation and lack of identified shared properties. Here we consider promoter conservation and positional conservation as indicators of functional commonality. RESULTS: We identify 665 conserved lncRNA promoters in mouse and human that are preserved in genomic position relative to orthologous coding genes...
March 15, 2018: Genome Biology
Xiaomin Fu, Xiaoyan Zhu, Fujun Qin, Yong Zhang, Jizhen Lin, Yuechao Ding, Zihe Yang, Yiman Shang, Li Wang, Qinxian Zhang, Quanli Gao
BACKGROUND: Liver tumor initiating cells (TICs) have self-renewal and differentiation properties, accounting for tumor initiation, metastasis and drug resistance. Long noncoding RNAs are involved in many physiological and pathological processes, including tumorigenesis. DNA copy number alterations (CNA) participate in tumor formation and progression, while the CNA of lncRNAs and their roles are largely unknown. METHODS: LncRNA CNA was determined by microarray analyses, realtime PCR and DNA FISH...
March 14, 2018: Molecular Cancer
Mu-Lin Liu, Qiao Zhang, Xiao Yuan, Long Jin, Li-Li Wang, Tao-Tao Fang, Wen-Bin Wang
AIM: To investigate the role of long noncoding RNA (lncRNA) RP4 in colorectal cancer. METHODS: Lentivirus-mediated lncRNA RP4 overexpression and knockdown were performed in the colorectal cancer cell line SW480. Cell proliferation, tumor growth, and early apoptosis were evaluated by a cell counting kit-8 assay, an in vivo xenograft tumor model, and annexin V/propidium iodide staining, respectively. Analysis of the lncRNA RP4 mechanism involved assessment of the association of its expression with miR-7-5p and the SH3GLB1 gene...
March 7, 2018: World Journal of Gastroenterology: WJG
Yunhuan Gao, Tiantian Wang, Yuanyuan Li, Yuan Zhang, Rongcun Yang
Myeloid-derived suppressor cells (MDSCs) are major regulators of immune responses in cancer. Both C/EBP homologous protein (CHOP) and C/EBPβ play a critical role in regulating immunosuppressive function of MDSCs. In this study, we identified a novel long noncoding RNA termed as lnc-chop in MDSCs, which may interact with CHOP and the C/EBPβ isoform liver-enriched inhibitory protein. The binding of lnc-chop with both CHOP and the C/EBPβ isoform liver-enriched inhibitory protein promoted the activation of C/EBPβ and upregulated the expression of arginase-1, NO synthase 2, NADPH oxidase 2, and cyclooxygenase-2, which are related to the immunosuppressive function of MDSCs in inflammatory and tumor environments...
March 12, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
Ye-Fen Lu, Xue-Li Cai, Zheng-Zheng Li, Jing Lv, Yi-An Xiang, Jian-Jun Chen, Wei-Jing Chen, Wei-Yan Sun, Xiu-Mei Liu, Jian-Bo Chen
BACKGROUND/AIMS: Long noncoding RNAs (lncRNAs) have recently emerged as novel and potentially promising therapeutic targets in various cancers. However, the expression pattern and biological function of lncRNAs in glioma remain largely elusive. In the present study, we investigated the functional role of an lncRNA, small nucleolar RNA host gene 16 (SNHG16), in glioma. METHODS: The expression levels of SNHG16 and miR-4518 were measured using qRT-PCR. The relationship between the levels of SNHG16 and clinicopathologic features were statically analyzed...
March 6, 2018: Cellular Physiology and Biochemistry
Kevin M Koo, Shuvashis Dey, Matt Trau
Simultaneous analysis of messenger RNA (mRNA), microRNA (miRNA), and long noncoding RNA (lncRNA)-multi-RNA-type profiling-is increasingly crucial in cancer diagnostics. Yet, rapid multi-RNA-type profiling is challenging due to enzymatic amplification reliance and RNA-type-dependent characteristics. Here, a nanodevice is reported to uniquely use alterable alternating current electrohydrodynamic (ac-EHD) forces to enhance probe-target hybridization prior to direct native RNA target detection, without target amplification or surface functionalization...
March 12, 2018: Small
Hongwei Ma, Tianshi Ma, Miao Chen, Zigui Zou, Zhihong Zhang
Pseudogenes were once regarded as transcriptionally inactive and without specific molecular function. However, current evidence shows that pseudogene-derived long noncoding RNAs (lncRNAs) may be crucial regulators of human cancer development, including gastric cancer (GC). In this study, we report that a pseudogene-derived lncRNA named SFTA1P, which is 693-nucleotide-long, was significantly downregulated in GC tissues compared to that in the adjacent normal tissues. In addition, decreased SFTA1P expression was strongly correlated with advanced TNM stage, larger tumor size, lymphatic metastasis, and poor prognosis of patients with GC...
March 9, 2018: Bioscience Reports
Qing Yan, Ying Tian, Furong Hao
Cervical cancer has the second highest incidence rate among cancers in females, accounting for a majority of cancer-related deaths globally. However, the mechanism of cervical cancer pathogenesis is still unclear. UCA1 is considered an oncogene that can transcribe into a long noncoding RNA (lncRNA). This study aimed to determine the function of UCA1 in cervical cancer. A series of experiments involving BrdU, MTS, scratch-adhesion test, and cell invasion assays were conducted to determine the cellular capabilities of proliferation, viability, migration, and invasion, respectively...
March 9, 2018: Oncology Research
Ni Kou, Sha Liu, Xiaojie Li, Wuwei Li, Weijian Zhong, Lin Gui, Songling Chai, Xiang Ren, Risu Na, Tao Zeng, Huiying Liu
The long noncoding RNA (lncRNA) H19 has been described to participate in various tumors metastasis. Nevertheless, whether H19 promotes or impedestongue squamous cell carcinoma (TSCC) cells migration and invasion remains controversial. Here, we found that the expression of H19 was elevated in TSCC tissues compared with adjacent normal tissues. Moreover, we demonstrated that the expression of H19 was higher in metastasized tumors compared with un-metastasized tumors. Consistently, TSCC cells express higher levels of H19 than human squanous cells...
March 9, 2018: Oncology Research
Yang Zhang, Min Zhu, Yuanbo Sun, Wenyuan Li, Ying Wang, Weiguang Yu
Long noncoding RNA cancer susceptibility candidate 2 (CASC2) has been identified to regulate the initiation and progression of multiple tumorous diseases. However, it was rarely reported in breast cancer. In present study, lncRNA CASC2 was found to be significantly down-regulated in breast cancer tissues and cell lines. We got this point with the quantitative real time-PCR. Furthermore, gain-of-function assays demonstrated that overexpression of lncRNA CASC2 significantly repressed proliferation and metastasis while caused cell cycle arrest and much more early apoptosis of breast cancer...
March 9, 2018: Oncology Research
Kuo-Wang Tsai, Yi-Hao Lo, Hsuan Liu, Chung-Yu Yeh, You-Zuo Chen, Chao-Wen Hsu, Wei-Shone Chen, Jui-Ho Wang
BACKGROUND: Colorectal cancer (CRC) is one of the most common cancers and causes of cancer-related death worldwide. In patients with CRC, metastasis is a crucial problem that leads to treatment failure and is the primary cause of the lethality of colon cancer. Long noncoding RNAs (lncRNAs) have recently emerged as critical molecules in the development, cell growth, apoptosis, and metastasis of CRC. METHOD: We investigated the transcriptome profiles of human lncRNAs in the primary tumor tissues and in the corresponding normal mucosa of two patients with CRC by using a microarray approach...
March 10, 2018: Molecular Cancer
Siyi Xu, Jing Sui, Sheng Yang, Yufeng Liu, Yan Wang, Geyu Liang
Cutaneous melanoma (CM) is the most malignant tumor of skin cancers because of its rapid development and high mortality rate. Long noncoding RNAs (lncRNAs), which play essential roles in the tumorigenesis and metastasis of CM and interplay with microRNAs (miRNAs) and mRNAs, are hopefully considered to be efficient biomarkers to detect deterioration during the progression of CM to improve the prognosis. Bioinformatics analysis was fully applied to predict the vital lncRNAs and the associated miRNAs and mRNAs, which eventually constructed the competing endogenous RNA (ceRNA) network to explain the RNA expression patterns in the progression of CM...
March 9, 2018: Cancer Medicine
Lei Gu, Lie-Sheng Lu, Dong-Lei Zhou, Zhong-Chen Liu
Long noncoding RNAs (lncRNAs) have emerged as regulators in a variety of biological processes, including carcinogenesis in human cancer. UCA1 has been reported to be upregulated in gastric cancer (GC); however, the underlying functional roles of UCA1 in GC have not been established. In the current study, we showed that UCA1 is significantly higher in GC tissues and cells compared with adjacent normal tissues and a gastric epithelium cell line, respectively. Higher UCA1 expression was associated with lymph node metastasis, TNM stage, and poor overall survival (OS) in GC patients...
March 8, 2018: Cancer Medicine
Dongxia Fu, Yunna Zhang, Haibin Cui
Pituitary adenomas, arising from the pituitary gland cells, are one of the most frequent tumors found in the sella region. However, the molecular mechanisms involved in the carcinogenesis and progression of pituitary adenomas is still not understood in detail. Long noncoding RNA (lncRNA) colon cancer-associated transcript 2 (CCAT2), a newly identified lncRNA, has been reported to be abnormally expressed in some cancers. In the present study, we found that CCAT2 was significantly upregulated in pituitary adenomas tissues...
2018: American Journal of Cancer Research
Wan-Cheng Xiong, Na Han, Nan Wu, Ke-Lei Zhao, Chen Han, Hui-Xin Wang, Guan-Fang Ping, Peng-Fei Zheng, Hailong Feng, Lei Qin, Peng He
Long noncoding RNAs (lncRNAs) are dysregulated in many diseases. MicroRNA-101 (miR-101) functions as a tumor suppressor by directly targeting ZEB1 in various cancers. However, the potential mechanism of lncRNA ZEB1-AS1 and miR-101/ZEB1 axis in CRC remains unknown. In this study, we further investigated the potential interplay between miR-101/ZEB1 axis and lncRNA ZEB1-AS1 in colorectal cancer (CRC). Results showed that ZEB1-AS1 was upregulated in CRC tissues and cells. MiR-101 was downregulated in CRC tissues and negatively correlated with ZEB1-AS1 and ZEB1 expression levels in CRC...
2018: American Journal of Translational Research
Lingmei Qu, Meng Jin, Like Yang, Chuanhui Sun, Peng Wang, Yushan Li, Linli Tian, Ming Liu, Yanan Sun
Long noncoding RNA HOXA11 antisense RNA (HOXA11-AS) is involved in tumorigenesis and development of some human cancers. However, the role of HOXA11-AS in human laryngeal squamous cell cancer (LSCC) is yet unclear. In this study, we firstly investigated the expression of HOXA11-AS in LSCC. Microarray and qRT-PCR showed that the level of HOXA11-AS was significantly higher in LSCC than that in the corresponding adjacent non-neoplastic tissues. ISH revealed that HOXA11-AS was strongly expressed in the nucleus and closely related to the T grade, neck nodal metastasis, and clinical stage...
2018: American Journal of Translational Research
Wanju Jiao, Yajun Chen, Huajie Song, Dan Li, Hong Mei, Feng Yang, Erhu Fang, Xiaojing Wang, Kai Huang, Liduan Zheng, Qiangsong Tong
Recent studies reveal the emerging functions of enhancer RNAs (eRNAs) in gene expression. However, the roles of eRNAs in regulating the expression of heparanase (HPSE), an established endo-β-D-glucuronidase essential for cancer invasion and metastasis, still remain elusive. Herein, through comprehensive analysis of publically available FANTOM5 expression atlas and chromatin interaction dataset, we identified a super enhancer and its derived eRNA facilitating the HPSE expression (HPSE eRNA) in cancers. Gain-of-function and loss-of-function experiments indicated that HPSE eRNA facilitated the in vitro and in vivo tumorigenesis and aggressiveness of cancer cells...
March 7, 2018: Oncogene
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