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https://www.readbyqxmd.com/read/28550686/microrna-186-suppresses-cell-proliferation-and-metastasis-through-targeting-sentrin-specific-protease-1-in-renal-cell-carcinoma
#1
Dan Jiao, Man Wu, Lei Ji, Feng Liu, Yingying Liu
Recent evidence suggests that dysregulation of microRNAs are associated with the development of multiple malignancies.miR-186 has been reported as a critical cancer regulator in several types of cancers. However, its functional significance and molecular mechanism underlying renal cell carcinoma (RCC) remains unknown. In this study, our results showed that miR-186 expression was dramatically downregulated in RCC tissues and cell lines compared to that in adjacent normal tissues and cell lines. Overexpression of miR-186 significantly inhibited cell growth, colony formation, cell invasion, caused cell cycle arrest at G0/G1 phase, and induced cell apoptosis as detected by MTT, colony formation, Transwell assay, and flow cytometry assays in RCC cells...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550684/long-noncoding-rna-ccat2-knockdown-suppresses-tumorous-progression-by-sponging-mir-424-in-epithelial-ovarian-vancer
#2
Fu Hua, Chang-Hua Li, Xiao-Gang Chen, Xiao-Ping Liu
Epithelial ovarian cancer (EOC) is the one of most common gynecological malignant tumor with highest mortality, meanwhile, series of lncRNAs have been validated to play vital role in EOC tumorigenesis. Colon cancer-associated transcript 2 (CCAT2) has been verified as oncogenic lncRNA in multiple tumors, however, the role of CCAT2 in EOC genesis is still unclear. The purpose of present study is to probe the function of CCAT2 on EOC. Preliminary experiments found that CCAT2 expression was significantly up-regulated in EOC tissue and cell lines compared to noncancerous tissue and cells...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550682/long-noncoding-rna-anril-promotes-cervical-cancer-development-by-acting-as-a-sponge-of-mir-186
#3
Jun-Jun Zhang, Dan-Dan Wang, Chen-Xiang Du, Yan Wang
Cervical cancer is a common malignancy of female reproductive system. Long non-coding RNA (lncRNA) has been reported tomodulate tumor progression in multiple cancers. The lncRNA antisense non-coding RNA in the INK4 locus (ANRIL) has been testified as oncogenic molecular in series tumors, however, the function and underlying mechanism involved in cervical cancer oncogenesis is still unclear. In present study, RT-PCR showed that ANRIL expression was significantly up-regulated in cervical cancer tumors and cell lines...
May 22, 2017: Oncology Research
https://www.readbyqxmd.com/read/28546132/identification-of-direct-target-genes-of-mir-7-mir-9-mir-96-and-mir-182-in-the-human-breast-cancer-cell-lines-mcf-7-and-mda-mb-231
#4
Hamidreza Moazzeni, Ali Najafi, Marzieh Khani
Some microRNAs have carcinogenic or tumor suppressive effects in breast cancer, which is the most common cancer in women worldwide. MiR-7 and miR-9 are tumor suppressor microRNAs, which induce apoptosis and inhibit proliferation in breast cancer cells. Moreover, miR-96 and miR-182 are onco-microRNAs that increase proliferation, migration, and tumorigenesis in breast cancer cells. This study aimed to identify the direct target genes of these four microRNAs in the human breast cancer cell lines MCF-7 and MDA-MB-231...
May 22, 2017: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/28545547/clonorchis-sinensis-granulin-identification-immunolocalization-and-function-in-promoting-the-metastasis-of-cholangiocarcinoma-and-hepatocellular-carcinoma
#5
Caiqin Wang, Huali Lei, Yanli Tian, Mei Shang, Yinjuan Wu, Ye Li, Lu Zhao, Mengchen Shi, Xin Tang, Tingjin Chen, Zhiyue Lv, Yan Huang, Xiaoping Tang, Xinbing Yu, Xuerong Li
BACKGROUND: Long-term infections by Clonorchis sinensis are associated with cholangitis, cholecystitis, liver fibrosis, cirrhosis, and even liver cancer. Molecules from the worm play vital roles in disease progress. In the present study, we identified and explored molecular characterization of C. sinensis granulin (CsGRN), a growth factor-like protein from C. sinensis excretory/secretory products (CsESPs). METHODS: The encoding sequence and conserved domains of CsGRN were identified and analysed by bioinformatics tools...
May 25, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28545024/an-unusual-intragenic-promoter-of-piwil2-contributes-to-aberrant-activation-of-oncogenic-pl2l60
#6
Shan-Shan Liu, Ning Liu, Meng-Yao Liu, Lei Sun, Wu-Yan Xia, Hong-Min Lu, Yu-Jie Fu, Guo-Liang Yang, Juan-Jie Bo, Xiao-Xing Liu, Haizhong Feng, Hailong Wu, Lin-Feng Li, Jian-Xin Gao
PIWIL2-like (PL2L) protein 60 (PL2L60), a product of aberrantly activated PIWIL2 gene, is widely expressed in various types of tumors and may promote tumorigenesis. However, the mechanisms underlying the activation of expression of PL2L60 remain unknown. In this study, an intragenic promoter responsible for the activation of PL2L60 within the human PIWIL2 gene has been identified, cloned and characterized. The promoter of PL2L60 is located in the intron 10 of the host gene PIWIL2. Bioinformatic and mutagenic analysis reveals that this intragenic promoter within the sequence of 50 nucleotides contains two closely arranged cis-acting elements specific for the hepatic leukemia factor (HLF) in the positive strand and signal transducer and activator of transcription 3 (STAT3) in the negative strand...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28541743/rarevar-a-framework-for-detecting-low-frequency-single-nucleotide-variants
#7
Yangyang Hao, Xiaoling Xuei, Lang Li, Harikrishna Nakshatri, Howard J Edenberg, Yunlong Liu
Accurate identification of low-frequency somatic point mutations in tumor samples has important clinical utilities. Although high-throughput sequencing technology enables capturing such variants while sequencing primary tumor samples, our ability for accurate detection is compromised when the variant frequency is close to the sequencer error rate. Most current experimental and bioinformatic strategies target mutations with ≥5% allele frequency, which limits our ability to understand the cancer etiology and tumor evolution...
May 25, 2017: Journal of Computational Biology: a Journal of Computational Molecular Cell Biology
https://www.readbyqxmd.com/read/28540673/micrornas-long-noncoding-rnas-and-their-functions-in-human-disease
#8
Min Xue, Ying Zhuo, Bin Shan
Majority of the human genome is transcribed into RNAs with absent or limited protein-coding potential. microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) are two major families of the non-protein-coding transcripts. miRNAs and lncRNAs can regulate fundamental cellular processes via diverse mechanisms. The expression and function of miRNAs and lncRNAs are tightly regulated in development and physiological homeostasis. Dysregulation of miRNAs and lncRNAs is critical to pathogenesis of human disease. Moreover, recent evidence indicates a cross talk between miRNAs and lncRNAs...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28539817/high-level-of-plasma-egfl6-is-associated-with-clinicopathological-characteristics-in-patients-with-oral-squamous-cell-carcinoma
#9
Chun-Yi Chuang, Mu-Kuan Chen, Ming-Ju Hsieh, Chia-Ming Yeh, Chiao-Wen Lin, Wei-En Yang, Shun-Fa Yang, Ying-Erh Chou
EGF-like domain 6 (EGFL6), a member of the epidermal growth factor (EGF) repeat protein superfamily, is a secreted protein that promotes endothelial cell migration and angiogenesis. The current study investigated the association between the clinicopathological characteristics and plasma level of EGFL6 in patients with oral squamous cell carcinoma (OSCC). We measured the plasma EGFL6 levels of 392 OSCC patients by using a commercial enzyme-linked immunosorbent assay. We also analyzed EGFL6 mRNA levels of 328 OSCC patients from The Cancer Genome Atlas (TCGA) dataset...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28539408/temporal-regulation-of-epithelium-formation-mediated-by-foxa-mklp1-mgcracgap-and-par-6
#10
Stephen E Von Stetina, Jennifer Liang, Georgios Marnellos, Susan E Mango
To establish the animal body plan, embryos link the external epidermis to the internal digestive tract. In Caenorhabditis elegans, this linkage is achieved by the Arcade Cells, which form an epithelial bridge between the foregut and epidermis, but little is known about how development of these three epithelia is coordinated temporally. The Arcade Cell epithelium is generated after the epidermis and digestive tract epithelia have matured, ensuring that both organs can withstand the mechanical stress of embryo elongation; mis-timing of epithelium formation leads to defects in morphogenesis...
May 24, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28538214/profiling-and-bioinformatic-analysis-of-circular-rna-expression-regulated-by-c-myc
#11
Qiheng Gou, Ke Wu, Jian-Kang Zhou, Yuxin Xie, Lunxu Liu, Yong Peng
The c-Myc transcription factor is involved in cell proliferation, cell cycle and apoptosis by activating or repressing transcription of multiple genes. Circular RNAs (circRNAs) are widely expressed non-coding RNAs participating in the regulation of gene expression. Using a high-throughput microarray assay, we showed that Myc regulates the expression of certain circRNAs. A total of 309 up- and 252 down-regulated circRNAs were identified. Among them, randomly selected 8 circRNAs were confirmed by real-time PCR...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537914/epigenomic-study-identifies-a-novel-mesenchyme-homeobox2-gli1-transcription-axis-involved-in-cancer-drug-resistance-overall-survival-and-therapy-prognosis-in-lung-cancer-patients
#12
Leonel Armas-López, Patricia Piña-Sánchez, Oscar Arrieta, Enrique Guzman de Alba, Blanca Ortiz-Quintero, Patricio Santillán-Doherty, David C Christiani, Joaquín Zúñiga, Federico Ávila-Moreno
Several homeobox-related gene (HOX) transcription factors such as mesenchyme HOX-2 (MEOX2) have previously been associated with cancer drug resistance, malignant progression and/or clinical prognostic responses in lung cancer patients; however, the mechanisms involved in these responses have yet to be elucidated. Here, an epigenomic strategy was implemented to identify novel MEOX2 gene promoter transcription targets and propose a new molecular mechanism underlying lung cancer drug resistance and poor clinical prognosis...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537672/mir-425-5p-promotes-tumor-progression-via-modulation-of-cyld-in-gastric-cancer
#13
Y-F Yan, F-M Gong, B-S Wang, W Zheng
OBJECTIVE: MicroRNAs (miRNAs) have emerged as important gene regulators and are recognized as key players in carcinogenesis. The present study investigated the role of miR-425-5p in the development and progression of gastric cancer (GC). PATIENTS AND METHODS: The miR-425-5p level in GC tissues and cells was assayed by qRT-PCR. Then, the effects of miR-425-5p expression on the biological behavior of GC cells were investigated. Analysis of target protein expression was determined by Western blotting...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28537268/global-mapping-of-carm1-substrates-defines-enzyme-specificity-and-substrate-recognition
#14
Evgenia Shishkova, Hao Zeng, Fabao Liu, Nicholas W Kwiecien, Alexander S Hebert, Joshua J Coon, Wei Xu
Protein arginine methyltransferases (PRMTs) introduce arginine methylation, a post-translational modification with the increasingly eminent role in normal physiology and disease. PRMT4 or coactivator-associated arginine methyltransferase 1 (CARM1) is a propitious target for cancer therapy; however, few CARM1 substrates are known, and its mechanism of substrate recognition is poorly understood. Here we employed a quantitative mass spectrometry approach to globally profile CARM1 substrates in breast cancer cell lines...
May 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28536309/development-and-validation-of-an-ultra-deep-next-generation-sequencing-assay-for-testing-of-plasma-cell-free-dna-from-patients-with-advanced-cancer
#15
Filip Janku, Shile Zhang, Jill Waters, Li Liu, Helen Huang, Vivek Subbiah, David S Hong, Daniel Karp, Siqing Fu, Xuyu Cai, Nishma M Ramzanali, Kiran Madwani, Goran Cabrilo, Debra D Andrews, Yue Zhao, Milind Javle, Scott Kopetz, Rajyalakshmi Luthra, Hyunsung J Kim, Sante Gnerre, Ravi Vijaya Satya, Han-Yu Chuang, Kristina M Kruglyak, Jonathan Toung, Chen Zhao, Richard Shen, John Heymach, Funda Meric-Bernstam, Gordon B Mills, Jian-Bing Fan, Neeraj S Salathia
Purpose: Tumor-derived cell-free DNA (cfDNA) in plasma can be used for molecular testing and provide an attractive alternative to tumor tissue. Commonly used PCR-based technologies can test for limited number of alterations at the time. Therefore, novel ultrasensitive technologies capable of testing for a broad spectrum of molecular alterations are needed to further personalized cancer therapy. <p>Experimental Design: We developed a highly sensitive ultra-deep next-generation sequencing (NGS) assay using reagents from TruSeq Nano library preparation and Nextera Rapid Capture target enrichment kits to generate plasma cfDNA sequencing libraries for mutational analysis in 61 cancer-related genes using common bioinformatics tools...
May 23, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28536261/the-let-7-lin28-axis-regulates-activation-of-hepatic-stellate-cells-in-alcoholic-liver-injury
#16
Kelly McDaniel, Li Huang, Keisaku Sato, Nan Wu, Tami Annable, Tianhao Zhou, Sugeily Ramos-Lorenzo, Ying Wan, Qiaobing Huang, Heather Francis, Shannon Glaser, Hidekazu Tsukamoto, Gianfranco Alpini, Fanyin Meng
The let-7/lin28 axis is associated with the regulation of key cellular regulatory genes known as microRNAs (miRNAs) in different human disorders and cancer development. This study evaluated the role of the let-7/lin28 axis in regulating a mesenchymal phenotype of hepatic stellate cells in alcoholic liver injury. We identified that ethanol feeding significantly downregulated several members of the let-7 family in mouse liver, including let-7a and let-7b. Similarly, the treatment of human hepatic stellate cells (hHSCs) with lipopolysaccharide (LPS) and TGF-β significantly decreased the expressions of let-7a and let-7b...
May 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28535539/mir-424-promotes-non-small-cell-lung-cancer-progression-and-metastasis-through-regulating-the-tumor-suppressor-gene-tnfaip1
#17
Ming Zhang, Chang'e Gao, Yi Yang, Gaofeng Li, Jian Dong, Yiqin Ai, Qianli Ma, Wenhui Li
BACKGROUND/AIMS: This study aimed to investigate the potential roles of miR-424 expression in non-small cell lung cancer (NSCLC) metastasis and growth and its underlying mechanism. METHODS: The expression of miR-424 in two NSCLC cell lines (A549 and H1975) was altered by transfection with miR-424 mimic and inhibitor. Effects of miR-424 overexpression and suppression on cells migration, invasion and colony formation were analyzed. Target genes for miR-424 were predicted using bioinformatics method and then verified using luciferase assay...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535014/mir-455-inhibits-cell-proliferation-and-migration-via-negative-regulation-of-egfr-in-human-gastric-cancer
#18
Tao Ning, Zhijuan Peng, Shuang Li, Yanjun Qu, Haiyang Zhang, Jingjing Duan, Xinyi Wang, Haiou Yang, Rui Liu, Ting Deng, Ming Bai, Yi Wang, Yiran Si, Le Zhang, Xia Wang, Shaohua Ge, Likun Zhou, Guoguang Ying, Yi Ba
Epidermal growth factor receptor (EGFR) plays an important role in various types of cancer. However, the therapeutic agents that target EGFR have not produced favorable results in gastric cancer. miRNAs are known to regulate gene expression at the post-transcriptional level. We wondered if miRNAs could be potential therapeutic agents for the targeted therapy against EGFR. In this study, we found an increase in the copies of EGFR mRNA and the upregulated expression of the EGFR protein in gastric cancer tissues compared with normal gastric tissues...
May 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534999/mir-370-regulates-cell-proliferation-and-migration-by-targeting-egfr-in-gastric-cancer
#19
Tao Ning, Haiyang Zhang, Xinyi Wang, Shuang Li, Le Zhang, Ting Deng, Likun Zhou, Rui Liu, Xia Wang, Ming Bai, Shaohua Ge, Hongli Li, Dingzhi Huang, Guoguang Ying, Yi Ba
Epidermal growth factor receptor (EGFR) is known to be overexpressed in ~30% of gastric cancer (GC) cases, and may serve as an effective biomarker for predicting the clinical benefit of anti-EGFR therapy. However, the mechanism underlying the regulation of EGFR expression remains unknown. Evidence indicates that post-transcriptional regulation may exist in the process of EGFR expression. In the present study, we aimed to explore whether miR-370 is involved in this process, and how it impacts the biological behaviors of GC cells...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534966/microrna-92a-promotes-epithelial-mesenchymal-transition-through-activation-of-pten-pi3k-akt-signaling-pathway-in-non-small-cell-lung-cancer-metastasis
#20
Chaojing Lu, Zhengxiang Shan, Jiang Hong, Lixin Yang
MicroRNAs (miRNAs) have important roles in various cancers, including non-small cell lung cancer (NSCLC). Although several miRNAs have reported to be involved in the development of NSCLC, understanding the regulatory roles of other miRNAs in NSCLC is essential. Therefore, the aim of the current study was to explore the roles and mechanisms of screened miRNAs in NSCLC. First, the differentially expressed miRNAs that were screened based on GSE29248 microarray data retrieved from Gene Expression Omnibus (GEO)...
May 16, 2017: International Journal of Oncology
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