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https://www.readbyqxmd.com/read/28918035/lncrna-hotair-contributes-to-5fu-resistance-through-suppressing-mir-218-and-activating-nf-%C3%AE%C2%BAb-ts-signaling-in-colorectal-cancer
#1
Peilong Li, Xin Zhang, Lili Wang, Lutao Du, Yongmei Yang, Tong Liu, Chen Li, Chuanxin Wang
One major reason for the failure of advanced colorectal cancer (CRC) treatment is the occurrence of chemoresistance to fluoropyrimidine (FU)-based chemotherapy. Long non-coding RNA HOTAIR has been considered as a pro-oncogene in multiple cancers. However, the precise functional mechanism of HOTAIR in chemoresistance is not well known. In this study, we investigated the biological and clinical role of HOTAIR in 5FU resistance in CRC. Our results showed that HOTAIR negatively regulated miR-218 expression in CRC through an EZH2-targeting miR-218-2 promoter regulatory axis...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28914367/no-association-of-single-nucleotide-polymorphisms-within-h19-and-hox-transcript-antisense-rna-hotair-with-genetic-susceptibility-to-systemic-lupus-erythematosus-rheumatoid-arthritis-and-primary-sj%C3%A3-gren-s-syndrome-in-a-chinese-han-population
#2
An-Fang Huang, Lin-Chong Su, Hong Jia, Yi Liu, Wang-Dong Xu
The H19 (rs2839698, rs3741219) and HOTAIR (rs920778) polymorphisms were related to many kinds of cancers. However, these polymorphisms have been scarcely explored in different autoimmune diseases. Here, we aimed to examine the association of the polymorphisms with susceptibility to or protection against systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and primary Sjögren's syndrome (pSS) among Chinese Han patients. We conducted a case-control study including 800 patients (300 with SLE, 350 with RA, and 150 with pSS) and 350 healthy control individuals...
September 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28904641/histone-code-and-long-non-coding-rnas-lncrnas-aberrations-in-lung-cancer-implications-in-the-therapy-response
#3
REVIEW
Abril Marcela Herrera-Solorio, Leonel Armas-López, Oscar Arrieta, Joaquín Zúñiga, Patricia Piña-Sánchez, Federico Ávila-Moreno
Respiratory diseases hold several genome, epigenome, and transcriptional aberrations as a cause of the accumulated damage promoted by, among others, environmental risk factors. Such aberrations can also come about as an adaptive response when faced with therapeutic oncological drugs. In epigenetic terms, aberrations in DNA methylation patterns, histone code marks balance, and/or chromatin-remodeling complexes recruitment, among Polycomb Repressive Complex-2 (PRC2) versus Trithorax (TRX) Activator Complex, have been proposed to be affected by several previously characterized functional long non-coding RNAs (lncRNAs)...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28893349/lncrna-hotair-activates-tumor-cell-proliferation-and-migration-by-suppressing-mir-326-in-cervical-cancer
#4
Xiaorong Wu, XiaoBin Cao, Fanghong Chen
Cervical cancer is the second most common malignant cancer in females. Recent findings indicate that LncRNA-HOTAIR played a crucial role in tumor progression. In our present study, we aimed to explore the regulating role of HOTAIR in the progression of cervical cancer. The expression of HOTAIR was found up-regulated in cervical cancer tissues and cell lines (Hela, CasKi, Me180 and C-33A) compared with the normal tissues and normal cervical cell line (Ect1/E6E7). To examine the function of HOTAIR, gene knockdown (KD) was performed using HOTAIR short hairpin RNAs (shRNAs)...
August 31, 2017: Oncology Research
https://www.readbyqxmd.com/read/28879612/how-long-noncoding-rnas-enforce-their-will-on-mitochondrial-activity-regulation-of-mitochondrial-respiration-reactive-oxygen-species-production-apoptosis-and-metabolic-reprogramming-in-cancer
#5
REVIEW
Boel De Paepe, Steve Lefever, Pieter Mestdagh
The cellular transcriptome contains a wide diversity of untranslated RNAs, of which the class of regulatory long noncoding RNAs (lncRNAs) has only recently been recognized. Evidence swiftly accumulates of lncRNAs influencing mitochondrial activities of eukaryotic cells, and perturbed expression is conspicuously associated with human diseases. In this review, we describe the multifaceted effects of lncRNAs on mitochondrial function, more particularly on the balance between oxidative phosphorylation and glycolysis, on the production of reactive oxygen species, and on apoptosis in human cells...
September 6, 2017: Current Genetics
https://www.readbyqxmd.com/read/28871949/-knock-down-of-zeb1-inhibits-the-proliferation-invasion-and-migration-of-gastric-cancer-cells
#6
Dengyu Chen, Yifan Chu, Qingwei Zheng, Zhiben Xu, Ping Zhou, Sheng Li
Objective To down-regulate the expression of zinc-finger E-box binding homeobox 1 (ZEB1) gene by shRNA, and investigate its effect on invasion, migration and proliferation, as well as the related gene expressions of lncRNA HOTAIR and E-cadherin in human gastric cancer BGC823 cells. Methods RNA interfering (RNAi) was used to knock down ZEB1 in gastric cancer BGC823 cells. The recombinant plasmid shZEB1 was constructed and transfected into the gastric cancer BGC823 cells by Lipofectamine(TM) 2000, and the stably transfected cells were isolated by G418 selection and limited dilution...
August 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28857242/down-regulation-of-the-long-noncoding-rna-hox-transcript-antisense-intergenic-rna-inhibits-the-occurrence-and-progression-of-glioma
#7
Bin Yang, Zhen-Yu Wei, Bang-Qing Wang, Hua-Chao Yang, Jun-Yi Wang, Xing-Yao Bu
This study aims to explore the role of long noncoding RNA (lncRNA)-HOX transcript antisense intergenic RNA (HOTAIR) in the occurrence and progression of glioma. Fresh glioma and normal brain tissues were classified into a glioma group (n = 67) and a normal group (n = 64) respectively. U87 cells were assigned into the blank, sh-NC and sh-HOTAIR groups. Quantitative real-time polymerase chain reaction (qRT-PCR) was utilized to determine HOTAIR expression. Cell proliferation, cell cycle and cell apoptosis rates were detected by cell counting kit-8 (CCK-8) and flow cytometry (FCM)...
August 31, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28846832/induction-of-a-novel-isoform-of-the-lncrna-hotair-in-claudin-low-breast-cancer-cells-attached-to-extracellular-matrix
#8
Miao Li, Xi Li, Yan Zhuang, Erik K Flemington, Lin Zhen, Bin Shan
Elevated overexpression of the lncRNA HOTAIR mediates invasion and metastasis in breast cancer. In an apparent paradox, we observed low expression of HOTAIR in the invasive Claudin-low MDA-MB-231 and Hs578T cells in two-dimensional culture (2D). However, HOTAIR expression exhibited robust induction in laminin-rich extracellular matrix based three-dimensional organotypic culture (lrECM 3D) over that in 2D culture. Induction of HOTAIR required intact ECM signaling, namely integrin α2 and SRC kinase activity...
August 28, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28818070/rs1859168-a%C3%A2-%C3%A2-c-polymorphism-regulates-hottip-expression-and-reduces-risk-of-pancreatic-cancer-in-a-chinese-population
#9
Pinghai Hu, Ou Qiao, Jun Wang, Jiao Li, Hao Jin, Zhaolian Li, Yan Jin
BACKGROUND: Long non-coding RNAs (lncRNAs) are aberrantly expressed in many types of human cancer including pancreatic cancer (PC) and correlated with tumorigenesis and cancer prognosis, whereas knowledge about regulatory mechanism of lncRNA expression is few known. This study aimed to explore whether polymorphisms in lncRNAs genes are associated with PC susceptibility by affecting its expression. METHODS: We first genotyped three common single-nucleotide polymorphisms (SNPs) of lncRNA genes (HOTTIP rs1859168, HOTAIR rs4759314, and H19 rs217727) in 416 paired PC patients and controls, and then validated the results in another 505 paired PC patients and controls...
August 17, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28791413/knockdown-of-hotair-suppresses-proliferation-and-cell-cycle-progression-in-hepatocellular-carcinoma-cell-by-downregulating-ccnd1-expression
#10
Jia-Jia Zhou, Di Cheng, Xiao-Yu He, Zhe Meng, Wen-Zhu Li, Ru-Fu Chen
The long noncoding RNA, homeobox transcript antisense RNA (Hotair), has been demonstrated to have an important role in regulating various biological processes in various cancers, including hepatocellular carcinoma (HCC). However, the importance of Hotair in HCC proliferation and cell cycle progression remains to be elucidated. In the present study, knockdown of HOTAIR expression by RNA interference inhibited cell proliferation and induced G0/G1 cell cycle arrest in Huh7 hepatocellular carcinoma cells. In addition, the expression levels of CCND1 mRNA and its cyclin D1 protein product were reduced in Huh7 cells following knockdown of HOTAIR...
October 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28782268/reprogramming-antagonizes-the-oncogenicity-of-hoxa13-long-noncoding-rna-hottip-axis-in-gastric-cancer-cells
#11
Deng-Chyang Wu, Sophie S W Wang, Chung-Jung Liu, Kenly Wuputra, Kohsuke Kato, Yen-Liang Lee, Ying-Chu Lin, Ming-Ho Tsai, Chia-Chen Ku, Wen-Hsin Lin, Shin-Wei Wang, Shotaro Kishikawa, Michiya Noguchi, Chu-Chieh Wu, Yi-Ting Chen, Chee-Yin Chai, Chen-Lung Steve Lin, Kung-Kai Kuo, Ya-Han Yang, Hiroyuki Miyoshi, Yukio Nakamura, Shigeo Saito, Kyosuke Nagata, Chang-Shen Lin, Kazunari K Yokoyama
Reprogramming of cancer cells into induced pluripotent stem cells (iPSCs) is a compelling idea for inhibiting oncogenesis, especially through modulation of homeobox proteins in this reprogramming process. We examined the role of various long noncoding RNAs (lncRNAs)-homeobox protein HOXA13 axis on the switching of the oncogenic function of bone morphogenetic protein 7 (BMP7), which is significantly lost in the gastric cancer cell derived iPS-like cells (iPSLCs). BMP7 promoter activation occurred through the corecruitment of HOXA13, mixed-lineage leukemia 1 lysine N-methyltransferase, WD repeat-containing protein 5, and lncRNA HoxA transcript at the distal tip (HOTTIP) to commit the epigenetic changes to the trimethylation of lysine 4 on histone H3 in cancer cells...
August 7, 2017: Stem Cells
https://www.readbyqxmd.com/read/28757056/long-non-coding-rna-mrna-correlation-analysis-reveals-the-potential-role-of-hotair-in-pathogenesis-of-sporadic-thoracic-aortic-aneurysm
#12
X Guo, Q Chang, H Pei, X Sun, X Qian, C Tian, H Lin
OBJECTIVE/BACKGROUND: Long non-coding RNA (lncRNA) play important roles in many diseases. However, their roles in sporadic thoracic aortic aneurysm (STAA) are unclear. Therefore, the objective of this study was to construct an lncRNA-mRNA network and dissect lncRNAs that might contribute to the pathogenesis of STAA. METHODS: Differentially expressed lncRNAs and mRNAs between four ascending aortic specimens derived from STAA and four controls from patients who had undergone coronary artery bypass graft (CABG) were identified by microarray analysis...
July 27, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28756022/histone-methylase-mll1-coordinates-with-hif-and-regulate-lncrna-hotair-expression-under-hypoxia
#13
Arunoday Bhan, Paromita Deb, Nadine Shihabeddin, Khairul I Ansari, Marco Brotto, Subhrangsu S Mandal
Hypoxia signaling plays a critical role in tumor growth, angiogenesis, metastasis cancer, and aging. Under hypoxia, hypoxia-inducible factors (HIFs) are stabilized and they coordinate the process of hypoxia-induced gene expression and cell signaling leading to increased tumor growth. Recent studies indicate that non-coding RNAs which are closely associated with cancer are abnormally expressed under hypoxia. Here, we have investigated the transcriptional regulation of a cancer associated long non-coding RNA (lncRNA), HOTAIR, under hypoxic conditions...
September 20, 2017: Gene
https://www.readbyqxmd.com/read/28755392/high-expression-of-long-non-coding-hox-antisense-transcript-rna-and-its-clinical-significance-in-cancer-tissues-a-meta-analysis
#14
Lei Wang, Yandong Zhao, Yi Qin, Yunpeng Xuan, Tong Qiu, Bo Fu, Xiaoyang Ren, Wenjie Jiao
BACKGROUND: HOX antisense transcript RNA (HOTAIR) is a 2148 nt long, intergenic, non-coding RNA molecule, which is reported to be highly expressed in many types of cancers. This meta-analysis summarizes its expression in cancer. METHODS: We searched all eligible papers on the prognostic impact of HOTAIR in cancer from inception to 30 September 2015 in PubMed, CBMdisc, and the CNKI database. Only full texts were included. Revman 5.3 was used for meta-analysis. RESULTS: A total of 11 studies of 1010 cases were included in the meta-analysis...
September 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28750739/the-yy1-hotair-mmp2-signaling-axis-controls-trophoblast-invasion-at-the-maternal-fetal-interface
#15
Yan Zhang, Feng Jin, Xiao-Cui Li, Fu-Jin Shen, Xiao-Ling Ma, Fan Wu, Si-Ming Zhang, Wei-Hong Zeng, Xiao-Rui Liu, Jian-Xia Fan, Yi Lin, Fu-Ju Tian
We aimed to determine the effect of YY1 expression on the expression profile of long noncoding RNAs (lncRNAs) in trophoblasts, and we studied the involvement of certain lncRNAs and YY1 in the pathogenesis of recurrent miscarriage (RM). RT2 lncRNA PCR arrays revealed that YY1 overexpression in trophoblasts significantly promoted the expression of the HOX transcript antisense RNA HOTAIR and demonstrated that HOTAIR expression was significantly lower in the RM trophoblasts than in control trophoblasts. Ectopic HOTAIR overexpression and knockdown experiments revealed that it was a novel target of YY1...
July 5, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28749190/are-there-any-hottips-for-defining-coding-potential-of-lncrnas-or-just-a-lot-of-hotair
#16
Rebecca L Mather, Mark Hirst, Francesco Crea
No abstract text is available yet for this article.
July 27, 2017: Epigenomics
https://www.readbyqxmd.com/read/28745272/long-noncoding-rna-hotair-an-oncogene-in-human-cervical-cancer-interacting-with-microrna-17-5p
#17
Fei Ji, Delinaer Wuerkenbieke, Yan He, Yan Ding
Increasing evidences have indicated that long noncoding RNAs (lncRNAs) are a class of significant regulator in varioustumorogenesis. LncRNA homeobox transcript antisense RNA (HOTAIR) has been reported to act as a functional lncRNA in cervical cancer development. In present study, our study aims to investigate the underlying mechanism of HOTAIR and miR-17-5p in cervical cancer tumorigenesis. Results showed that HOTAIR expression was significantly up-regulated both in cervical cancer tissues and cell lines. Loss-of-function experiments showed that HOTAIR knockdown inhibited the proliferation, migration and invasion of cervical cells...
July 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28738804/oncogenic-long-noncoding-rna-landscape-in-breast-cancer
#18
Shouping Xu, Dejia Kong, Qianlin Chen, Yanyan Ping, Da Pang
BACKGROUND: Few long noncoding RNAs (lncRNAs) that act as oncogenic genes in breast cancer have been identified. METHODS: Oncogenic lncRNAs associated with tumourigenesis and worse survival outcomes were examined and validated in Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA), respectively. Then, the potential biological functions and expression regulation of these lncRNAs were studied via bioinformatics and genome data analysis. Moreover, progressive breast cancer subtype-specific lncRNAs were investigated via high-throughput sequencing in our cohort and TCGA validation...
July 24, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28732288/lncrna-hotair-alleviates-rheumatoid-arthritis-by-targeting-mir-138-and-inactivating-nf-%C3%AE%C2%BAb-pathway
#19
Hong-Ju Zhang, Qiao-Feng Wei, Shu-Jun Wang, Hong-Jie Zhang, Xiu-Ying Zhang, Qin Geng, Yan-Hui Cui, Xiu-Hua Wang
Rheumatoid arthritis (RA) is a chronic and autoimmune-mediated inflammatory disease. We aimed to investigate the regulation of lncRNA HOTAIR in LPS-treated chondrocytes and RA mouse. Our results showed that HOTAIR expression was significantly reduced in LPS-treated chondrocytes. The HOTAIR was then over-expressed in chondrocytes by transfecting recombinant lentivirus carrying sequences encoding HOTAIR. The LPS-induced reduction of cell proliferation rate and production of two inflammatory factors interleukin (IL)-17, IL-23 were markedly inhibited...
July 18, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28731193/promotion-of-glycolysis-by-hotair-through-glut1-upregulation-via-mtor-signaling
#20
Shibo Wei, Qing Fan, Liang Yang, Xiaodong Zhang, Yingbo Ma, Zhihong Zong, Xiangdong Hua, Dongming Su, Hongzhi Sun, Hangyu Li, Zhen Liu
The long non-coding RNA HOX transcript antisense RNA (HOTAIR) plays a key role in the progression of various carcinomas. However, whether or not HOTAIR influences glucose metabolism and the specific underlying mechanism in hepatocellular carcinoma (HCC) cells remain unclear. In the present study, we found markedly increased HOTAIR expression in 84 HCC tissues and demonstrated that HOTAIR overexpression promoted cell proliferation using Cell Counting Kit-8. The effect on glucose metabolism regulated by HOTAIR in HCC cells was determined by detecting lactate and glucose levels: HOTAIR promoted glycolysis by upregulating glucose transporter isoform 1 (GLUT1) and activating mammalian target of rapamycin (mTOR) signaling, whereas knockdown of HOTAIR suppressed this effect...
July 20, 2017: Oncology Reports
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