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Eun Sook Kim, Jae Yeon Choi, Su Jin Hwang, In Hwa Bae
Although radiotherapy has been successfully applied to treat many cancer types, surviving cancer cells often acquire therapeutic resistance, leading to increased risk of local recurrence and distant metastases via modification of the tumor microenvironment. Previously, we reported that high expression of Bcl-w in cancer patients is significantly correlated with poor survival as well as malignant activity. However, the relationship between ionizing radiation (IR)-induced resistance and Bcl-w expression in cancer cells is currently unclear...
December 31, 2018: Molecular Therapy. Nucleic Acids
Gökhan İçme, Ayça Yilmaz, Erdem Dinç, Ayşegül Görür, Şenay Balci Fidanci, Lülüfer Tamer
OBJECTIVES: The aim of this study was to investigate the expression levels of miR-126-3p, miR-182-5p, miR-183-5p, miR-184, miR-221-3p, and miR-205-5p in primary pterygium tissue and compare these levels with those in healthy conjunctiva tissue. METHODS: Twenty-four patients who were diagnosed with grade 3 primary pterygium and scheduled for surgery between January 2014 and January 2016 and had no systemic disease or other ocular pathology were included in the study...
January 22, 2019: Eye & Contact Lens
Paola Ulivi, Elisabetta Petracci, Giorgia Marisi, Sara Baglivo, Rita Chiari, Monia Billi, Matteo Canale, Luigi Pasini, Serena Racanicchi, Alessandro Vagheggini, Angelo Delmonte, Marita Mariotti, Vienna Ludovini, Massimiliano Bonafè, Lucio Crinò, Francesco Grignani
Non-small cell lung cancer (NSCLC) is the primary cause of cancer-related death worldwide, with a low 5-year survival rate even in fully resected early-stage disease. Novel biomarkers to identify patients at higher risk of relapse are needed. We studied the prognostic value of 84 circulating microRNAs (miRNAs) in 182 patients with resected early-stage NSCLC (99 adenocarcinoma (ADC), 83 squamous cell carcinoma (SCC)) from whom peripheral blood samples were collected pre-surgery. miRNA expression was analyzed in relation to disease-free survival (DFS) and overall survival (OS)...
January 23, 2019: Journal of Clinical Medicine
Marina Gonçalves Diniz, Josiane Alves França, Fabrício A S Vilas-Boas, Fabrício Tinôco Alvim de Souza, George Adrian Calin, Ricardo Santiago Gomez, Sílvia Ferreira de Sousa, Carolina Cavalieri Gomes
Ameloblastoma and adenomatoid odontogenic tumor (AOT) are jaw tumors derived from the teeth forming apparatus. While ameloblastoma is a destructive, debilitating lesion, with conventional surgical treatment leading to facial deformity and morbodities, AOT shows indolent clinical behavior. The underlying molecular mechanisms associated with their biological behavior are unknown. The use of high-density whole-genome microarray analysis in ameloblastomas and AOT revealed high frequency of genomic gain at 14q32...
December 26, 2018: Pathology, Research and Practice
Carolina Salazar-Ruales, Jessica-Viviana Arguello, Andrés López-Cortés, Alejandro Cabrera-Andrade, Jennyfer M García-Cárdenas, Patricia Guevara-Ramírez, Patricio Peralta, Paola E Leone, César Paz-Y-Miño
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer with the highest incidence worldwide. HNSCC is often diagnosed at advanced stages, incurring significant high mortality and morbidity. The use of saliva, as a noninvasive tool for the diagnosis of cancer, has recently increased. Salivary microRNAs (miRNAs) have emerged as a promising molecular tool for early diagnosis of HNSCC. The aim was to identify the differential expression of salivary miRNAs associated with HNSCC in the high altitude mestizo Ecuadorian population...
2018: BioMed Research International
Xiaoyan Shi, Lan Xiao, Xiaolu Mao, Jinrong He, Yu Ding, Jin Huang, Caixia Peng, Zihui Xu
Cisplatin resistance is a major cause of treatment failure in advanced ovarian cancer. The limited evidence shows the paradoxical regulation of miR-205 on chemotherapy resistance in cancer. Herein, we found that miR-205-5p was enormously increased in cisplatin-resistant C13K ovarian cancer cells compared with its cisplatin-sensitive OV2008 parental cells using miRNA microarrays, which was further verified by quantitative PCR. Furthermore, we confirmed that inhibition of miR-205-5p upregulated PTEN and subsequently attenuated its downstream target p-AKT, which inversed C13K cells from cisplatin resistance to sensitivity...
2018: Frontiers in Genetics
Mingkun Luo, Lanmei Wang, Wenbin Zhu, Jianjun Fu, Feibiao Song, Min Fang, Juanjuan Dong, Zaijie Dong
BACKGROUND: MicroRNAs (miRNAs) are endogenous, small (21-25 nucleotide), non-coding RNAs that play important roles in numerous biological processes. Koi carp exhibit diverse color patterns, making it an ideal subject for studying the genetics of pigmentation. However, the influence of miRNAs on skin color regulation and variation in Koi carp is poorly understood. RESULTS: Herein, we performed small RNA (sRNA) analysis of the three main skin colors in Koi carp by Illumina sequencing...
October 29, 2018: BMC Genomics
Nassim Ghorbanmehr, Sedigheh Gharbi, Eberhard Korsching, Mahmood Tavallaei, Behzad Einollahi, Seyed Javad Mowla
BACKGROUND: Early detection of cancers improves patients' survival and decreases the treatment cost. Unfortunately, the current methods for diagnosis of bladder and prostate cancers, two most common urothelial malignancies, suffer from a low sensitivity and specificity. MicroRNAs, as a group of endogenously produced non-coding RNAs, regulate gene expression and their expression is observed to be altered in many cancers and cancer progression phenomena. The remarkable stability of microRNAs in biofluids and their unique expression pattern in different pathological conditions make them an appealing, noninvasive diagnostic method in cancer diagnosis...
January 2019: Prostate
Fanny Langlet, Marcel Tarbier, Rebecca A Haeusler, Stefania Camastra, Eleuterio Ferrannini, Marc R Friedländer, Domenico Accili
OBJECTIVES: Hepatic insulin resistance is a hallmark of type 2 diabetes and obesity. Insulin receptor signaling through AKT and FOXO has important metabolic effects that have traditionally been ascribed to regulation of gene expression. However, whether all the metabolic effects of FOXO arise from its regulation of protein-encoding mRNAs is unknown. METHODS: To address this question, we obtained expression profiles of FOXO-regulated murine hepatic microRNAs (miRNAs) during fasting and refeeding using mice lacking Foxo1, 3a, and 4 in liver (L-Foxo1,3a, 4)...
November 2018: Molecular Metabolism
Sarunya Kitdumrongthum, Chanatip Metheetrairut, Varodom Charoensawan, Puey Ounjai, Keatdamrong Janpipatkul, Wittaya Panvongsa, Jittima Weerachayaphorn, Pawinee Piyachaturawat, Arthit Chairoungdua
AIM: Cholangiocarcinoma (CCA) is a malignant tumor of bile duct epithelial cells. The prognosis of CCA is poor due to lack of effective therapeutic targets and detection at an advanced stage. Exosomes are secreted nano-sized vesicles and contribute to the malignancy of several cancers via transferring their miRNAs between cells. Thus, exosomal miRNAs may serve as new therapeutic targets and potential biomarkers for CCA. MAIN METHODS: Exosomes were isolated from three different CCA cell lines and normal human cholangiocyte cells, followed by miRNA profiling analysis...
October 1, 2018: Life Sciences
Antonella De Cola, Alessia Lamolinara, Paola Lanuti, Cosmo Rossi, Manuela Iezzi, Marco Marchisio, Matilde Todaro, Vincenzo De Laurenzi
Mir-205 plays an important role in epithelial biogenesis and in mammary gland development but its role in cancer still remains controversial depending on the specific cellular context and target genes. We have previously reported that miR-205-5p is upregulated in breast cancer stem cells targeting ERBB pathway and leading to targeted therapy resistance. Here we show that miR-205-5p regulates tumorigenic properties of breast cancer cells, as well as epithelial to mesenchymal transition. Silencing this miRNA in breast cancer results in reduced tumor growth and metastatic spreading in mouse models...
July 26, 2018: Cell Death & Disease
Lianpeng Li, Shouqiang Li
Many studies have demonstrated that miRNAs have influence on tumorigenesis and progression of human cancers, including invasion and migration. Thus, the role of miR-205/ZEB1 axis for the migration and invasion of prostate cancer cells was explored in the present study. The miR-205-5p and zinc finger E-box binding homeobox 1 (ZEB1) mRNA expression levels were observed in prostate cancer tissues or cell lines via reverse transcription-quantitative PCR (RT-qPCR), and the protein level of ZEB1 was measured by western blotting...
August 2018: Oncology Letters
Gulisa Turashvili, Elizabeth D Lightbody, Kathrin Tyryshkin, Sandip K SenGupta, Bruce E Elliott, Yolanda Madarnas, Abdi Ghaffari, Andrew Day, Christopher J B Nicol
Triple-negative breast cancers (TNBCs) account for ∼25% of all invasive carcinomas and represent a large subset of aggressive, high-grade tumors. Despite current research focused on understanding the genetic landscape of TNBCs, reliable prognostic and predictive biomarkers remain limited. Although dysregulated microRNAs (miRNAs) have emerged as key players in many cancer types, the role of miRNAs in TNBC disease progression is unclear. We performed miRNA profiling of 51 TNBCs by next-generation sequencing to reveal differentially expressed miRNAs...
May 29, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Qixin Leng, Yue Wang, Feng Jiang
Cell-free microRNAs in plasma provide circulating biomarkers for lung cancer. Most techniques for analysis of miRNAs require a large plasma volume to purify a sufficient RNA yield followed by complicated downstream processing. Small differences in the multiple procedures often cause large analytical variations and poor diagnostic values of the plasma biomarkers. Here we investigate whether directly quantifying plasma miRNAs without RNA purification could diagnose lung cancer. FirePlex assay was directly applied to 20 μl plasma of 56 lung cancer patients and 28 cancer free controls for quantifying 11 lung tumor-associated miRNAs...
August 2018: Translational Oncology
Osamu Ishibashi, Ichiro Akagi, Yota Ogawa, Takashi Inui
The phosphatidylinositol-3-kinase (PI3K)/AKT pathway is frequently activated in various human cancers and plays essential roles in their development and progression. Accumulating evidence suggests that dysregulated expression of microRNAs (miRNAs) is closely associated with cancer progression and metastasis. Here, we focused on miRNAs that could regulate genes related to the PI3K/AKT pathway in esophageal squamous cell carcinoma (ESCC). To identify upregulated miRNAs and their possible target genes in ESCC, we performed microarray-based integrative analyses of miRNA and mRNA expression levels in three human ESCC cell lines and a normal esophageal epithelial cell line...
June 22, 2018: Biochemical and Biophysical Research Communications
Hong-Ling Jia, Xiao-Qin Zeng, Feng Huang, Ya-Meng Liu, Bi-Shuang Gong, Kai-Zhao Zhang, Jiang-Hui Zeng, Dong-Guang Guo, Zhuo-Ya Wang, Yu-Gu Li
MicroRNAs (miRNAs) play key roles in the regulation of gene expression during multiple physiological processes, including early development, differentiation, and ageing. However, their involvement in age-related thymic involution is not clear. In this study, we profiled the global transcriptome and miRNAome of thymic epithelial cells in 1- and 3-month-old male and female mice, and predicted the possible transcription factors and target genes of the four most significantly differentially expressed miRNAs (DEMs) (miR-183-5p, miR-199b-5p, miR-205-5p, and miR-200b-3p) by performing bioinformatics analyses...
July 2018: IUBMB Life
Suzhen Song, Weihua Yu, Sen Lin, Mingbao Zhang, Teng Wang, Shuang Guo, Hongbo Wang
OBJECTIVE: This study was conducted to investigate the effects of ADP dependent glucokinase antisense RNA 1 (ADPGK-AS1)/ miR-205-5p/ zinc finger E-box binding homeobox 1 (ZEB1) on PC cells. METHODS: Differentially expressed lncRNAs and miRNAs in pancreatic cancer (PC) were identified by microarray analysis. In silico ceRNA analysis was conducted to find out the interactions among lncRNAs, miRNAs and mRNAs. Quantitative real-time PCR (qRT-PCR) was utilized to examine the expression of miR-205-5p and lncRNA ADPGK-AS1 in PC and non-cancerous cells...
July 3, 2018: Cancer Biology & Therapy
Yi-Fan Tao, Jun Qiang, Jing-Wen Bao, Hong-Xia Li, Guo-Jun Yin, Pao Xu, De-Ju Chen
MicroRNAs (miRNAs) are non-coding RNAs that function as post-transcriptional gene regulators and that play vital roles controlling lipid metabolism. miR-205 is an important miRNA related to adipogenesis and lipid metabolism. However, little is known about the potential role of miR-205-5p in genetically improved farmed tilapia (GIFT, Oreochromis niloticus). In this study, we used miRanda software to search for potential miR-205-5p target genes and found a lipid-metabolism-related gene called acetyl-CoA carboxylase β (ACACβ)...
June 20, 2018: Gene
Silvia Di Agostino, Fabio Valenti, Andrea Sacconi, Giulia Fontemaggi, Matteo Pallocca, Claudio Pulito, Federica Ganci, Paola Muti, Sabrina Strano, Giovanni Blandino
Over 70% of head & neck squamous cell carcinoma (HNSCC) patients carry TP53 oncogenic mutations. Here we studied the role of specific tumor-derived mutant p53 proteins in the aberrant transcription of long non-coding (lnc) MIR205HG gene in head and neck cancer cells. Methods: To understand the role of lncMIR205HG, that we showed to be transcriptionally regulated by mutant p53 in HNSCC, we have employed siRNA and shRNA in CAL27 and FaDu HNSCC cell lines to suppress p53 gene expression in ChIP assays and RT-qPCR...
2018: Theranostics
Qin Chen, Xiaoyan Huang, Renjie Li
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), as a long chain non-coding RNA (lncRNA), has been reported to be upregulated in Parkinson's disease (PD). However, the mechanisms underlying this process remain unknown. Hence, to investigate the role of MALAT1 in PD, N-methyl-4-phenylpyridinium (MPP+ ) was used to induce PD in vitro in the MN9D dopaminergic neuronal cell line and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) was used to induce PD in vivo in C57BL/6 mice. Quantitative Real-Time PCR (qRT-PCR) and western blot assay showed that the expression levels of MALAT1 and leucine-rich repeat kinase (LRRK2) were increased, and that of miR-205-5p was decreased in the midbrains of mice in which PD was induced by MPTP...
2018: American Journal of Translational Research
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