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https://www.readbyqxmd.com/read/28748780/mir-133a-3p-targets-sumo-specific-protease-1-to-inhibit-cell-proliferation-and-cell-cycle-progress-in-colorectal-cancer
#1
Guo-Qiang Zhou, Fu Han, Zhi-Liang Shi, Liang Yu, Xue-Feng Li, Cheng Yu, Cheng-Long Shen, Dai-Wei Wan, Xin-Quo Zhu, Rui Li, Song-Bing He
Dysregulation of SUMO-specific protease 1(SENP1) expression has been reported in several kinds of cancer, including human colorectal and prostate cancers, proposing SENP1 as a oncogene with a critical role in cancer progression. MiR-133a-3p has been reported as a tumor suppressor in several malignant neoplasias. However, the precise molecular mechanisms underlying its role in colorectal cancer remain largely unknown. The aim of this work is to investigate the relationship between miR-133a-3p and SENP1 in colorectal cancer cells...
July 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28745272/long-noncoding-rna-hotair-an-oncogene-in-human-cervical-cancer-interacting-with-microrna-17-5p
#2
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/28733224/celf1-preferentially-binds-to-exon-intron-boundary-and-regulates-alternative-splicing-in-hela-cells
#3
Heng Xia, Dong Chen, Qijia Wu, Gang Wu, Yanhong Zhou, Yi Zhang, Libin Zhang
The current RIP-seq approach has been developed for the identification of genome-wide interaction between RNA binding protein (RBP) and the bound RNA transcripts, but still rarely for identifying its binding sites. In this study, we performed RIP-seq experiments in HeLa cells using a monoclonal antibody against CELF1. Mapping of the RIP-seq reads showed a biased distribution at the 3'UTR and intronic regions. A total of 15,285 and 1384 CELF1-specific sense and antisense peaks were identified using the ABLIRC software tool...
July 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28717185/clinical-significance-and-effect-of-lncrna-hoxa11-as-in-nsclc-a-study-based-on-bioinformatics-in-vitro-and-in-vivo-verification
#4
Yu Zhang, Wen-Jie Chen, Ting-Qing Gan, Xiu-Ling Zhang, Zu-Cheng Xie, Zhi-Hua Ye, Yun Deng, Ze-Feng Wang, Kai-Teng Cai, Shi-Kang Li, Dian-Zhong Luo, Gang Chen
HOXA11 antisense RNA (HOXA11-AS) has been shown to be involved in tumorigenesis and development of different cancers. However, the role of HOXA11-AS in non-small cell lung cancer (NSCLC) remains unclear. In this study, we firstly explored and confirmed the expression of HOXA11-AS in NSCLC tissues and cells. Cytometry, CCK-8, cell scratch, migration, Matrigel invasion and flow cytometry assays were performed to determine the biological impact of HOXA11-AS in vitro. Furthermore, a chick embryo chorioallantoic membrane (CAM) model of NSCLC was constructed to explore the effect of HOXA11-AS on tumorigenicity and angiogenesis in vivo...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716122/systematic-evaluation-of-oligodeoxynucleotide-binding-and-hybridization-to-modified-multi-walled-carbon-nanotubes
#5
Anika Kaufmann, Silke Hampel, Christiane Rieger, David Kunhardt, Darja Schendel, Susanne Füssel, Bernd Schwenzer, Kati Erdmann
BACKGROUND: In addition to conventional chemotherapeutics, nucleic acid-based therapeutics like antisense oligodeoxynucleotides (AS-ODN) represent a novel approach for the treatment of bladder cancer (BCa). An efficient delivery of AS-ODN to the urothelium and then into cancer cells might be achieved by the local application of multi-walled carbon nanotubes (MWCNT). In the present study, pristine MWCNT and MWCNT functionalized with hydrophilic moieties were synthesized and then investigated regarding their physicochemical characteristics, dispersibility, biocompatibility, cellular uptake and mucoadhesive properties...
July 17, 2017: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/28707763/in-vivo-knockdown-of-antisense-noncoding-mitochondrial-rnas-by-a-lentiviral-encoded-shrna-inhibits-melanoma-tumor-growth-and-lung-colonization
#6
Manuel Varas-Godoy, Alvaro Lladser, Nicole Farfan, Claudio Villota, Jaime Villegas, Julio C Tapia, Luis O Burzio, Veronica A Burzio, Pablo D T Valenzuela
The family of non-coding mitochondrial RNAs (ncmtRNA) are differentially expressed according to proliferative status. Normal proliferating cells express sense (SncmtRNA) and antisense ncmtRNAs (ASncmtRNAs), whereas tumor cells express SncmtRNA and downregulate ASncmtRNAs. Knockdown of ASncmtRNAs with oligonucleotides induces apoptotic cell death of tumor cells, leaving normal cells unaffected, suggesting a potential application for developing a novel cancer therapy. In this study, we knocked down the ASncmtRNAs in melanoma cell lines with a lentiviral-encoded shRNA approach...
July 14, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28706132/identification-of-a-novel-metastasis-inducing-lncrna-which-suppresses-the-kai1-cd82-metastasis-suppressor-gene-and-is-upregulated-in-triple-negative-breast-cancer
#7
Ronni Aram, Iris Dotan, Agnes Hotz-Wagenblatt, Dan Canaani
Inactivation of tumor/metastasis suppressor genes via epigenetic silencing is a frequent event in human cancers. KAI1/CD82 is a metastasis suppressor gene whose normal protecting activity is deficient in twelve different solid malignancies. Here we have identified and characterized a primarily nuclear non-polyadenylated, antisense (as)-lncRNA, initiating upstream of the KAI1 human metastasis suppressor gene transcription start site; and elongating in the opposite direction to KAI1 mRNA. We show that the KAI1 promoter is bi-directional giving rise to KAI1 mRNA and its as-lncRNA...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28705714/aristeromycin-and-dznep-cause-growth-inhibition-of-prostate-cancer-via-induction-of-mir-26a
#8
Noriko Uchiyama, Yukiya Tanaka, Tomohiro Kawamoto
Most prostate cancers initially respond to androgen deprivation therapy, but then progress from androgen-dependent to androgen-independent prostate cancers. In the present study, a differential cytotoxicity screen of hormone-resistant prostate cancer LNCaP-hr cells and the parental LNCaP-FGC cells against normal MRC5 fibroblast cells, identified a small molecule compound, Aristeromycin (a derivative of 3-deazaneplanocin A (DZNeP)). The molecular target was shown to be S-adenosylhomocysteine hydrolase (AHCY), which catalyzes reversible hydrolysis of S-adenosylhomocysteine (SAH) to adenosine and L-homocysteine...
July 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28696185/in-vitro-evaluation-of-antisense-oligonucleotide-functionalized-core-shell-nanoparticles-loaded-with-%C3%AE-tocopherol-succinate
#9
Ebru Kilicay, Zeynep Karahaliloglu, Pınar Alpaslan, Baki Hazer, Emir Baki Denkbas
Antisense oligonucleotide (ASO)-conjugated-α-tocopherol succinate (TCS)-loaded-poly(lactic acid)-g-poly(ethylene glycol) nanoparticles (ASO-TCS-PLA-PEG NPs), with the ratio of polymer/TCS of 10:2.5, 10:5, 10:7 (w/w) were prepared for targeting cancer therapy. The amphiphilic PLA, amino terminated PEG graft copolymers were synthesized by ring opening polymerization reaction. Nanoparticles were produced by using double emulsion (w/o/w) solvent evaporation method. ASO-TCS-PLA-PEG NPs demonstrated satisfactory encapsulation and loading efficiency and size distribution...
July 11, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28679866/long-non-coding-rna-zfas1-correlates-with-clinical-progression-and-prognosis-in-cancer-patients
#10
Fangteng Liu, Hui Gao, Siyu Li, Xiaolin Ni, Zhengming Zhu
Dysregulation of long non-coding RNA zinc finger antisense 1 (ZFAS1) has been reported in many types of cancers. We performed a synthetic analysis to clarify its prognostic significance as a cancer molecular-marker. Several databases (including PubMed, Web of Science, Embase together with Wanfang and China National Knowledge Internet database) were retrieved to identify ZFAS1-related articles. A total of eight articles were included in this meta-analysis. Hazard ratios (HR) and 95% confidence intervals (CI) were applied to assess the association between ZFAS1 expression level and overall survival (OS)...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28671455/amphiphilic-sirna-conjugates-for-co-delivery-of-nucleic-acids-and-hydrophobic-drugs
#11
Soo Hyeon Lee, Jeong Yu Lee, Jee Seon Kim, Tae Gwan Park, Hyejung Mok
Combination therapy of nucleic acids and chemical drugs for cancer treatment is a promising strategy to enhance the therapeutic efficacy by simultaneously regulating multiple troublesome pathways. In this study, we report on polyethylene glycol-siRNA-polycaprolactone (PEG-siRNA-PCL) micelles that encapsulate hydrophobic drugs for efficient co-delivery of siRNA and drugs to cancer cells. Amphiphilic PEG-siRNA-PCL copolymers were synthesized by annealing antisense siRNA-PCL conjugates with sense siRNA-PEG conjugates...
July 26, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28669171/hotair-long-noncoding-rna-is-not-a-biomarker-for-acute-myeloid-leukemia-aml-in-iranian-patients
#12
Arezou Sayad, Abbas Hajifathali, Amir Ali Hamidieh, Elham Roshandel, Mohammad Taheri
Accumulating evidence indicates that lncRNAs may have potential as new biomarkers to predict prognosis of different human cancers. HOTAIR lncRNA, transcribed from the human HOX locus, has been suggested to regulate gene expression of important target genes and up-regulation has been noted in malignancies. The role of HOX transcript antisense RNA in acute myeloid leukemia (AML) was investigated in the present case control study. HOTAIR expression was evaluated in blood samples of twenty five de novo AML patients and fifty healthy controls using real-time quantitative reverse transcription-PCR (qRT-PCR)...
June 25, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28667302/e2f1-regulated-long-non-coding-rna-rad51-as1-promotes-cell-cycle-progression-inhibits-apoptosis-and-predicts-poor-prognosis-in-epithelial-ovarian-cancer
#13
Xiaodan Zhang, Guoping Liu, Junjun Qiu, Ning Zhang, Jingxin Ding, Keqin Hua
Long non-coding RNA RAD51 antisense RNA 1 (RAD51-AS1, also known as TODRA) has been shown to be down-regulated by E2F1, a key cell cycle and apoptosis regulator, in breast cancer. Little is known regarding the role of RAD51-AS1 in disease. Here, we investigate the role of RAD51-AS1 in epithelial ovarian cancer (EOC). Using luciferase reporter and chromatin immunoprecipitation experiments, we verified RAD51-AS1 as a target of E2F1 under negative regulation in EOC. We then examined RAD51-AS1 expression in EOC samples using in situ hybridization (ISH)...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28653605/knockdown-of-lncrna-hoxa11-antisense-promotes-glioma-cell-apoptosis-via-sponging-mir-140-5p
#14
Yan Cui, Lei Yi, Ming-Ming Zhang, Yu Zhou, Zhi-Gang Tan, Tao Huang, Yu-Gang Jiang
Long non-coding RNAs (lncRNAs) are proved as important regulators in many diseases, including multiple cancers. HOXA11antisense RNA (HOXA11-AS) is a novel identified lncRNA associated with cancer progression. However, the role of HOXA11-AS in glioma remains poorly understood and needs to be elucidated. The purpose of this study is to investigate the role and regulating mechanism of HOXA11-AS on gliomagenesis. Expression of HOXA11-AS was significantly up-regulated in glioma tissue and cell lines compared to the adjacent normal tissue and cells...
June 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28652266/long-non-coding-rna-jhdm1d-as1-promotes-tumor-growth-by-regulating-angiogenesis-in-response-to-nutrient-starvation
#15
Ayano Kondo, Aya Nonaka, Teppei Shimamura, Shogo Yamamoto, Tetsuo Yoshida, Tatsuhiko Kodama, Hiroyuki Aburatani, Tsuyoshi Osawa
Long non-coding RNAs play a pivotal role in tumor progression, but their role in cancer cells in the nutrient-starved tumor microenvironment remains unknown. Here, we show that a nutrient starvation-responsive long non-coding RNA, JHDM1D antisense 1 (JHDM1D-AS1), promotes tumorigenesis by regulating angiogenesis in response to nutrient starvation. Expression of JHDM1D-AS1 was increased in cancer cells. In addition, expression of JHDM1D-AS1 was increased in clinical tumor samples compared to that in normal tissue...
June 26, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28649178/hotair-a-key-regulator-in-gynecologic-cancers
#16
REVIEW
Jing Li, Jing Wang, Yan Zhong, Ruixia Guo, Danxia Chu, Haifeng Qiu, Zhongfu Yuan
Long non-coding RNAs (lncRNAs) play critical roles in the initiation and progression of human cancers. HOX transcript antisense RNA (HOTAIR) is an lncRNA localized to the mammalian HOXC gene cluster; it can interact with polycomb repressive complex 2 and the lysine-specific histone demethylase/CoREST/REST complex, and it manipulates the expression of various genes. HOTAIR promotes tumor invasion and metastasis by silencing tumor suppressors, and activating oncogenes and signaling pathways. HOTAIR is deregulated in many human cancers; despite its critical roles in health and disease, the underlying mechanisms governing HOTAIR function are unknown...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28641698/-expression-of-serum-lncrna-hotair-in-non-small-cell-lung-cancer-%C3%A2-and-its-clinical-significance
#17
Nan Tan, Lihong Li, Lu Bai, Kun Zhao
BACKGROUND: The expression of long noncoding RNA HOX antisense RNA (HOTAIR) is abnormal in a variety of tumors. The aim of this study is to explore the serum levels and clinical significance of HOTAIR in patients with non-small cell lung cancer (NSCLC). METHODS: The serum levels of HOTAIR were detected by real-time quantitative polymerase chain reaction (PCR) in 64 NSCLC patients and 64 normal controls. The relationships between the serum levels of HOTAIR and clinical pathological parameters were analyzed...
June 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28639399/tp73-as1-promotes-breast-cancer-cell-proliferation-through-mir-200a-mediated-tfam-inhibition
#18
Jia Yao, Feng Xu, Danhua Zhang, Wenjun Yi, Xianyu Chen, Gannong Chen, Enxiang Zhou
P73 antisense RNA 1T (TP73-AS1 or PDAM) is a long non-coding RNA, which can regulate apoptosis through regulation of p53 signaling-related anti-apoptotic genes. An abnormal change of TP73-AS1 expression was noticed in cancers. The effects of TP73-AS1 in breast cancer (BC) growth and the underlying mechanism remain unclear so far. In the present study, the effect of TP73-AS1 in BC cell lines and clinical tumor samples was detected so as to reveal its role and function. In the present study, TP73-AS1 was specifically upregulated in BC tissues and BC cell lines and was correlated to a poorer prognosis in patients with BC...
June 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28627628/phosphorothioate%C3%A2-modified-antisense-oligonucleotides-against-human-telomerase-reverse-transcriptase-sensitize-cancer-cells-to-radiotherapy
#19
Fei Cao, Xiaoping Ju, Di Chen, Lingong Jiang, Xiaofei Zhu, Shuiwang Qing, Fang Fang, Yuxin Shen, Zhen Jia, Huojun Zhang
Emergence of resistance, unavoidable systemic toxicity and unsatisfactory efficacy arethe main obstacles for traditional cancer therapy. Combination with phosphorothioate modified antisense oligonucleotides (PS‑ASODN) against human telomerase reverse transcriptase (hTERT) may enhance the therapeutic effect of irradiation. However, the effect of PS‑ASODN against hTERT on the anti‑tumor effects of irradiation in liver cancer remain unclear. In the current study, Walker 256 cells were transfected with hTERT PS‑ASODN...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28621612/association-of-anril-gene-polymorphisms-with-prostate-cancer-and-benign-prostatic-hyperplasia-in-an-iranian-population
#20
Mohammad Taheri, Farkhondeh Pouresmaeili, Mir Davood Omrani, Mohsen Habibi, Shaghayegh Sarrafzadeh, Rezvan Noroozi, Azadeh Rakhshan, Arezou Sayad, Soudeh Ghafouri-Fard
AIM: Prostate cancer and benign prostate hyperplasia (BPH) are heterogeneous disorders with high prevalence among men. The antisense noncoding RNA in the INK4 locus codes for a long noncoding RNA whose participation in cancer has been elucidated. METHOD: We analyzed rs1333045, rs4977574, rs1333048 and rs10757278 genotypes from this locus in 125 prostate cancer patients, 125 BPH patients as well as 220 normal age-matched subjects by means of tetra-primer amplification refractory mutation system PCR method...
May 2017: Biomarkers in Medicine
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