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Shuoshuo Wang, Elizabeth Stoops, Unnikannan Cp, Barak Markus, Adriana Reuveny, Elly Ordan, Talila Volk
Nuclear mechanotransduction has been implicated in the control of chromatin organization; however, its impact on functional contractile myofibers is unclear. We found that deleting components of the linker of nucleoskeleton and cytoskeleton (LINC) complex in Drosophila melanogaster larval muscles abolishes the controlled and synchronized DNA endoreplication, typical of nuclei across myofibers, resulting in increased and variable DNA content in myonuclei of individual myofibers. Moreover, perturbation of LINC-independent mechanical input after knockdown of β-Integrin in larval muscles similarly led to increased DNA content in myonuclei...
April 12, 2018: Journal of Cell Biology
#2
Ying Chen, Zetian Shen, Yingru Zhi, Hao Zhou, Kai Zhang, Ting Wang, Bing Feng, Yitian Chen, Haizhu Song, Rui Wang, Xiaoyuan Chu
Radiotherapy plays a limited role in the treatment of hepatocellular carcinoma (HCC) due to the development of resistance. Therefore, further investigation of underlying mechanisms involved in HCC radioresistance is warranted. Increasing evidence shows that long non-coding RNAs (linc-RNAs) are involved in the pathology of various tumors, including HCC. Previously, we have shown that long noncoding RNA regulator of reprogramming (linc-ROR) promotes HCC metastasis via induction of epithelial-mesenchymal transition (EMT)...
March 17, 2018: Archives of Biochemistry and Biophysics
#3
Guangcai Niu, Huijie Zhuang, Bingqiang Li, Gang Cao
PURPOSE: Recent reports have shown that long noncoding (lnc) RNAs are critical during tumorigenesis. This study focused on the influence of linc-UBC1 on the metastasis of esophageal squamous cell carcinoma (ESCC) and the underlying mechanism. METHODS: In 50 ESCC tissues and 5 ESCC cell lines, linc- UBC1 expression was detected by RT-qPCR. Moreover, correlation analysis was conducted between linc-UBC1 expression level and clinicopathological features. Overall survival of these ESCC patients was analyzed by Kaplan-Meier method...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
#4
Anssi Lipponen, Assam El-Osta, Antony Kaspi, Mark Ziemann, Ishant Khurana, Harikrishnan Kn, Vicente Navarro-Ferrandis, Noora Puhakka, Jussi Paananen, Asla Pitkänen
Traumatic brain injury (TBI) induces a wide variety of cellular and molecular changes that can continue for days to weeks to months, leading to functional impairments. Currently, there are no pharmacotherapies in clinical use that favorably modify the post-TBI outcome, due in part to limited understanding of the mechanisms of TBI-induced pathologies. Our system biology analysis tested the hypothesis that chronic transcriptomics changes induced by TBI are controlled by altered DNA-methylation in gene promoter areas or by transcription factors...
February 27, 2018: Acta Neuropathologica Communications
#5
Sylvain Fauquenoy, Valerie Migeot, Olivier Finet, Carlo Yague-Sanz, Olga Khorosjutina, Karl Ekwall, Damien Hermand
The cell fate decision leading to gametogenesis requires the convergence of multiple signals on the promoter of a master regulator. In fission yeast, starvation-induced signaling leads to the transcriptional induction of the ste11 gene, which encodes the central inducer of mating and gametogenesis, known as sporulation. We find that the long intergenic non-coding (linc) RNA rse1 is transcribed divergently upstream of the ste11 gene. During vegetative growth, rse1 directly recruits a Mug187-Lid2-Set1 complex that mediates cis repression at the ste11 promoter through SET3C-dependent histone deacetylation...
January 18, 2018: Current Biology: CB
#6
Yixia Zhao, Fengqi Cao, Xiaohua Yu, Chuyan Chen, Jiao Meng, Ran Zhong, Yong Zhang, Dahai Zhu
Myogenic differentiation of skeletal muscle stem cells, also known satellite cells, is tightly orchestrated by extrinsic and intrinsic regulators. Basic fibroblast growth factor (FGF2) is well documented to be implicated in satellite cell self-renewal and differentiation by repressing MyoD. We recently identified a MyoD-regulated and skeletal muscle-specifically expressed long non-coding RNA Linc-RAM which enhances myogenic differentiation by facilitating MyoD/Baf60c/Brg1 complex assembly. Herein, we investigated the transcriptional regulation and intracellular signaling pathway in mediating Linc-RAM gene expression during muscle cell differentiation...
January 24, 2018: RNA Biology
#7
Yansen Li, Zhanlong Shen, Bo Wang, Chunxiang Ye, Zhiyong Lai, Hongpeng Jiang, Zhu Wang, Kewei Jiang, Yingjiang Ye, Shan Wang
Increasing evidence has shown that abnormal expression of lncRNAs is involved in various biological behaviors and major cellular pathways of human cancers. However, the role of lncRNAs in the progression of gastric cancer has not been adequately investigated. Therefore, in this study, we investigated the expression levels of linc-GPR65-1 using Quantitative real-time PCR (qRT-PCR) and found that linc-GPR65-1 was significantly up-regulated in 50 gastric cancer tissues compared to the corresponding normal tissues...
April 2, 2018: Cell Cycle
#8
Natalie Filippov-Levy, Hallel Cohen-Schussheim, Claes G Tropé, Thea E Hetland Falkenthal, Yoav Smith, Ben Davidson, Reuven Reich
OBJECTIVE: To profile long non-coding RNA (lncRNA) expression at the various anatomic sites of high-grades serous carcinoma (HGSC) and in effusion-derived exosomes. METHODS: LncRNA profiling was performed on 60 HGSC specimens, including 10 ovarian tumors, 10 solid metastases and 10 malignant effusions, as well as exosomes from 30 effusion supernatants. Anatomic site-related expression of ESRG, Link-A, GAS5, MEG3, GATS, PVT1 H19, Linc-RoR, HOTAIR and MALAT1 was validated by quantitative PCR and assessed for clinical relevance in a series of 77 HGSC effusions, 40 ovarian carcinomas, 21 solid metastases and 42 supernatant exosomes...
March 2018: Gynecologic Oncology
#9
Samarjit Jana, Jagannath Jana, Kartick Patra, Soma Mondal, Jyotsna Bhat, Arnab Sarkar, Pallabi Sengupta, Anindya Biswas, Meghomukta Mukherjee, Satya Prakash Tripathi, Rahul Gangwal, Joyita Hazra, Abhay T Sangamwar, Gopeswar Mukherjee, Shamee Bhattacharjee, Deba Prasad Mandal, Subhrangsu Chatterjee
Discovery of anti-metastatic drugs is of immense clinical significance as metastasis is responsible for 90% of all cancer deaths. Here we report the inhibitory effect of a bis schiff base (M2) on cancer cell migration and invasion in vitro and in vivo . M2 has shown good solubility and permeability across the intestinal cell wall and hence can be classified as BCS (Biopharmaceutical classification system) class I. Microarray studies identified a long non coding intergenic RNA, LINC00273 as a novel molecular target of M2...
December 15, 2017: Oncotarget
#10
Ranran Zhang, Heather Hardin, Wei Huang, Darya Buehler, Ricardo V Lloyd
Long non-coding RNAs (lncRNAs) may contribute to carcinogenesis and tumor progression by regulating transcription and gene expression. The role of lncRNAs in the regulation of thyroid cancer progression is being extensively examined. Here, we analyzed three lncRNAs that were overexpressed in papillary thyroid carcinomas, long intergenic non-protein coding RNA, regulator of reprogramming (Linc-ROR, ROR) PVT1 oncogene (PVT1), and HOX transcript antisense intergenic RNA (HOTAIR) to determine their roles in thyroid tumor development and progression...
March 2018: Endocrine Pathology
#11
Lianghai Wang, Xiaodan Yu, Zhiyu Zhang, Lijuan Pang, Jiang Xu, Jinfang Jiang, Weihua Liang, Yuhang Chai, Jun Hou, Feng Li
BACKGROUND: Novel therapies tailored to the molecular composition of esophageal squamous cell carcinoma (ESCC) are needed to improve patient survival. We investigated the regulatory network of long intergenic non-protein coding RNA, regulator of reprogramming (linc-ROR) and sex-determining region Y-box 9 (SOX9), and their therapeutic relevance in ESCC. METHODS: Linc-ROR and SOX9 expression were examined in ESCC specimens, cell lines, and cultured tumorspheres. We investigated the effects of linc-ROR on SOX9 expression and malignant phenotypes by CCK8, colony formation, Transwell, and sphere-forming assay...
December 13, 2017: Journal of Experimental & Clinical Cancer Research: CR
#12
W-W Yu, K Wang, G-J Liao
OBJECTIVE: This research focuses on the influence of linc-ITGB1 on the metastasis of hepatocellular carcinoma and further explores its underlying mechanism. PATIENTS AND METHODS: A total of 70 hepatocellular carcinoma patients were chosen for our study. RT-qPCR was used for detecting the expression level of linc-ITGB1 in their cancer tissues. Moreover, the expression level of linc-ITGB1 was also detected in hepatocellular carcinoma cell lines. Furthermore, whether linc-ITGB1 could affect the migrated and invaded ability of hepatocellular carcinoma cells was determined by wound healing assay and transwell assay...
November 2017: European Review for Medical and Pharmacological Sciences
#13
Zhongdong Xie, Wenzheng Xia, Meng Hou
Doxorubicin (Dox)-induced cardiotoxicity has been a well‑known phenomenon to clinicians and scientists for decades. It has been confirmed that Dox‑dependent cardiotoxicity is accompanied by cardiac cellular senescence. However, the molecular mechanisms underlying Dox cardiotoxicity remains to be fully elucidated. Long non‑coding (lnc) RNAs regulate gene transcription and the fate of post‑transcriptional mRNA, which affects a broad range of age‑associated physiological and pathological conditions, including cardiovascular disease and cellular senescence...
February 2018: Molecular Medicine Reports
#14
Meiling Shang, Xinhua Xu, Min Zhang, Hongyuan Yang
Hepatocellular carcinoma (HCC) represents a major endpoint of chronic liver diseases and is the third leading cause of cancer-related mortality. Long intergenic non-coding RNA-integrin subunit β1 ITGB1 (linc-ITGB1) is a novel long non-coding RNA, which is implicated in the development and progression of human tumors. However, its involvement in hepatocarcinogenesis remains to be elucidated. In the present study, the specific roles of linc-ITGB1 on cell proliferation and metastasis in HCC were investigated...
November 2017: Experimental and Therapeutic Medicine
#15
Aravind Subramanian, Rajiv Narayan, Steven M Corsello, David D Peck, Ted E Natoli, Xiaodong Lu, Joshua Gould, John F Davis, Andrew A Tubelli, Jacob K Asiedu, David L Lahr, Jodi E Hirschman, Zihan Liu, Melanie Donahue, Bina Julian, Mariya Khan, David Wadden, Ian C Smith, Daniel Lam, Arthur Liberzon, Courtney Toder, Mukta Bagul, Marek Orzechowski, Oana M Enache, Federica Piccioni, Sarah A Johnson, Nicholas J Lyons, Alice H Berger, Alykhan F Shamji, Angela N Brooks, Anita Vrcic, Corey Flynn, Jacqueline Rosains, David Y Takeda, Roger Hu, Desiree Davison, Justin Lamb, Kristin Ardlie, Larson Hogstrom, Peyton Greenside, Nathanael S Gray, Paul A Clemons, Serena Silver, Xiaoyun Wu, Wen-Ning Zhao, Willis Read-Button, Xiaohua Wu, Stephen J Haggarty, Lucienne V Ronco, Jesse S Boehm, Stuart L Schreiber, John G Doench, Joshua A Bittker, David E Root, Bang Wong, Todd R Golub
We previously piloted the concept of a Connectivity Map (CMap), whereby genes, drugs, and disease states are connected by virtue of common gene-expression signatures. Here, we report more than a 1,000-fold scale-up of the CMap as part of the NIH LINCS Consortium, made possible by a new, low-cost, high-throughput reduced representation expression profiling method that we term L1000. We show that L1000 is highly reproducible, comparable to RNA sequencing, and suitable for computational inference of the expression levels of 81% of non-measured transcripts...
November 30, 2017: Cell
#16
Jidong Sui, Xuejun Yang, Wenjing Qi, Kun Guo, Zhenming Gao, Liming Wang, Deguang Sun
BACKGROUND/AIMS: Recent evidence has indicated the crucial regulatory roles of long non-coding RNAs (lncRNAs) in tumour biology. In hepatocellular carcinoma (HCC), aberrant expression of lncRNAs plays an essential role in HCC tumourigenesis. However, the potential roles and regulatory mechanisms of the novel human lncRNA, Linc-USP16, in HCC are unclear. METHODS: To investigate the function of Linc-USP16 in HCC, we first analysed the expression levels of Linc-USP16 in HCC patient tissues and cell lines via q-RT-PCR and established overexpressed or knockdown HCC cell lines...
2017: Cellular Physiology and Biochemistry
#17
Yanhui Lou, Huanhuan Jiang, Zhumei Cui, Lingzhi Wang, Xiangyu Wang, Tian Tian
Long intergenic non-protein coding RNA, regulator of reprogramming (linc-ROR) is an intergenic long non-coding RNA (lncRNA) previously shown to contribute to tumorigenesis in several malignancies. However, little is known about whether linc-ROR has a role in ovarian cancer progression. In this study, we found that linc-ROR expression was increased in high-grade ovarian serous cancer tissues compared with normal ovarian tissues or normal fallopian tube tissues. Furthermore, the level of linc-ROR expression was associated with ovarian cancer International Federation of Gynecology and Obstetrics stage and lymph node metastasis...
September 19, 2017: Oncotarget
#18
C-H Qu, Q-Y Sun, F-M Zhang, Y-M Jia
OBJECTIVE: The aim of the present study was to determine the expression levels of long intergenic non-protein coding RNA, regulator of reprogramming (linc-ROR) in non-small-cell lung cancer (NSCLC) patients and to further explore the prognostic value of this lncRNA. PATIENTS AND METHODS: In our investigation, we determined the expression of linc-ROR in human NSCLC tissues and matched normal lung tissues by quantitative Real-time-PCR analysis. Also, correlations between linc-ROR expression and the clinicopathological features were evaluated...
September 2017: European Review for Medical and Pharmacological Sciences
#19
Ji-Ru Ye, Liang Liu, Feng Zheng
Nonsmall cell lung cancer (NSCLC) is a type of malignant tumor, accounting for 80% of all lung cancer morbidity. Long noncoding RNA (lncRNA) BLACAT1 (bladder cancer associated transcript 1), also known as linc-UBC1, has been tested to be an oncogenic lncRNA in other cancers. However, the role of BLACAT1 in NSCLC is still unknown. In clinical study, BLACAT1 expression was significantly upregulated in 48 cases of NSCLC tissues compared with adjacent normal tissues, especially in pathological TNM III samples. In NSCLC cells, BLACAT1 expression was also upregulated...
October 2017: DNA and Cell Biology
#20
Tianhe Zhao, Lichun Wu, Xinyang Li, Huangmei Dai, Zunzhen Zhang
BACKGROUND: Recent study has revealed that large intergenic non-coding RNA-ROR (linc-ROR) is aberrantly expressed in a number of cancers including breast cancer. However, whether circulating linc-ROR in plasma could be used for breast cancer diagnosis and dynamic monitoring is not clear. OBJECTIVE: The objective of this study is to determine if plasma linc-ROR could be applied as a biomarker for the diagnosis and dynamic monitoring of breast cancer. METHODS: We tested the expression levels of linc-ROR in 24 pairs of tissue samples and 96 plasma samples from breast cancer patients by quantitative real time-polymerase chain reaction (qRT-PCR), and analyzed the correlation between plasma linc-ROR levels and clinico-pathological characteristics...
August 23, 2017: Cancer Biomarkers: Section A of Disease Markers
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