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https://www.readbyqxmd.com/read/29679573/circrna-expression-analysis-in-lung-adenocarcinoma-comparison-of-paired-fresh-frozen-and-formalin-fixed-paraffin-embedded-specimens
#1
Fan Zhang, Xing Zhao, Hongyan Dong, Jianzhen Xu
Circular RNA (circRNAs) is a novel class of endogenous non-coding RNAs which is widely involved in carcinogenesis. Archived formalin-fixed paraffin-embedded (FFPE) specimens represent valuable resources for cancer research. Currently there is a lack of systematic analysis on the feasibility of circRNAs expression analysis using FFPE samples. Here, we reported the first comparison study of circRNA expression from paired fresh frozen and FFPE specimens of lung adenocarcinoma. circRNAs expression of paired lung adenocarcinoma and adjacent normal samples, starting from either fresh frozen or FFPE materials, were analyzed via a high-throughput circRNA microarray...
April 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29679068/profiling-of-179-mirna-expression-in-blood-plasma-of-lung-cancer-patients-and-cancer-free-individuals
#2
Ivan A Zaporozhchenko, Evgeny S Morozkin, Anastasia A Ponomaryova, Elena Y Rykova, Nadezhda V Cherdyntseva, Aleksandr A Zheravin, Oksana A Pashkovskaya, Evgeny A Pokushalov, Valentin V Vlassov, Pavel P Laktionov
Lung cancer is one of major cancers, and survival of lung cancer patients is dictated by the timely detection and diagnosis. Cell-free circulating miRNAs were proposed as candidate biomarkers for lung cancer. These RNAs are frequently deregulated in lung cancer and can persist in bodily fluids for extended periods of time, shielded from degradation by membrane vesicles and biopolymer complexes. To date, several groups reported the presence of lung tumour-specific subsets of miRNAs in blood. Here we describe the profiling of blood plasma miRNAs in lung cancer patients, healthy individuals and endobronchitis patients using miRCURY LNA miRNA qPCR Serum/Plasma Panel (Exiqon)...
April 20, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29677213/ifn-%C3%AE-and-micrornas-are-important-modulators-of-the-pulmonary-innate-immune-response-against-influenza-a-h1n2-infection-in-pigs
#3
Louise Brogaard, Lars E Larsen, Peter M H Heegaard, Christian Anthon, Jan Gorodkin, Ralf Dürrwald, Kerstin Skovgaard
The innate immune system is paramount in the response to and clearance of influenza A virus (IAV) infection in non-immune individuals. Known factors include type I and III interferons and antiviral pathogen recognition receptors, and the cascades of antiviral and pro- and anti-inflammatory gene expression they induce. MicroRNAs (miRNAs) are increasingly recognized to participate in post-transcriptional modulation of these responses, but the temporal dynamics of how these players of the antiviral innate immune response collaborate to combat infection remain poorly characterized...
2018: PloS One
https://www.readbyqxmd.com/read/29676470/role-of-mirnas-in-lung-cancer
#4
REVIEW
Arif Uddin, Supriyo Chakraborty
Lung cancer (LC) is the leading cause of cancer-related deaths all over the world, among both men and women, with an incidence of over 200,000 new cases per year coupled with a very high mortality rate. LC comprises of two major clinicopathological categories: small-cell (SCLC) and nonsmall-cell lung carcinoma (NSCLC). The microRNAs (miRNAs) are small noncoding RNAs, usually 18-25 nucleotides long, which repress protein translation through binding to complementary target mRNAs. The miRNAs regulate many biological processes including cell cycle regulation, cellular growth, proliferation, differentiation, apoptosis, metabolism, neuronal patterning, and aging...
April 20, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29673878/down-regulation-of-mir-373-increases-the-radiosensitivity-of-lung-cancer-cells-by-targeting-timp2
#5
Yinghua Guo, Yingxiao Jiang, Maozhong Sang, Chunli Xu
BACKGROUND: Radiotherapy is a widely used effective treatment for lung cancer in clinic. MicroRNAs (miRNAs) have been proved to play an important role in radiation response. This study aimed to explore the regulatory role and mechanism of miR-373 in lung cancer cell radiosensitivity. METHODS: qRT-PCR was used to analyze the expression of miR-373 in lung cancer tissues and cell lines. MiR-373 expression was overexpressed or knocked down by transfection with miR-373 mimic or inhibitor...
April 16, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29673101/identification-of-four-plasma-micrornas-as-potential-biomarkers-in-the-diagnosis-of-male-lung-squamous-cell-carcinoma-patients-in-china
#6
Xia Shan, Huo Zhang, Lan Zhang, Xin Zhou, Tongshan Wang, JinYing Zhang, Yongqian Shu, Wei Zhu, Wei Wen, Ping Liu
Dysregulated microRNAs (miRNAs) in the plasma of patients with lung squamous cell carcinoma (LSCC) might serve as biomarkers for LSCC diagnosis. The expression of miRNAs was performed using quantitative reverse transcription-polymerase chain reaction (qRT-PCR) on the basis of Exiqon panels in the initial screening phase including three male LSCC pool samples and one normal control (NC) pool sample (per 10 samples were pooled as one pool sample). After the training (32 LSCC vs. 31 NCs), the testing (55 LSCC vs...
April 19, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29669761/enhancer-remodeling-and-microrna-alterations-are-associated-with-acquired-resistance-to-alk-inhibitors
#7
Mi Ran Yun, Sun Min Lim, Seon-Kyu Kim, Hun Mi Choi, Kyoung Ho Pyo, Seong Keun Kim, Ji Min Lee, You Won Lee, Jae Woo Choi, Hye Ryun Kim, Min Hee Hong, Keeok Haam, Nanhyung Huh, Jong Hwan Kim, Yong Sung Kim, Hyo Sup Shim, Ross Andrew Soo, Jin-Yuan Shih, James Chih-Hsin Yang, Mirang Kim, Byoung Chul Cho
Anaplastic lymphoma kinase (ALK) inhibitors are highly effective in ALK fusion-positive lung cancer patients, but acquired resistance invariably emerges. Identification of secondary mutations has received considerable attention, but most cases cannot be explained by genetic causes alone, raising the possibility of epigenetic mechanisms in acquired drug resistance. Here we investigated the dynamic changes in the transcriptome and enhancer landscape during development of acquired resistance to ALK inhibitors...
April 18, 2018: Cancer Research
https://www.readbyqxmd.com/read/29666324/microrna-197-induces-epithelial-mesenchymal-transition-and-invasion-through-the-downregulation-of-hipk2-in-lung-adenocarcinoma
#8
Nan Zhang, Liang Tian, Zhigang Miao, Nan Guo
The major cause of cancer-related deaths in patients with lung adenocarcinoma (LAD) is due to distant metastasis. Many reports have indicated that miRNA plays a key role in tumour metastasis. The expression of miR-197 is correlated with LADprogression, however, the mechanism of miR-197 is still unknown in the processing of LAD. A Boyden chamber migration/invasion assay was used for the metastatic function study in vitro. Real-time PCR andWestern blot assays were employed to analyse the EMT hallmark changes in both the mRNA and protein levels...
March 2018: Journal of Genetics
https://www.readbyqxmd.com/read/29665774/prediction-of-microrna-disease-associations-based-on-distance-correlation-set
#9
Haochen Zhao, Linai Kuang, Lei Wang, Pengyao Ping, Zhanwei Xuan, Tingrui Pei, Zhelun Wu
BACKGROUND: Recently, numerous laboratory studies have indicated that many microRNAs (miRNAs) are involved in and associated with human diseases and can serve as potential biomarkers and drug targets. Therefore, developing effective computational models for the prediction of novel associations between diseases and miRNAs could be beneficial for achieving an understanding of disease mechanisms at the miRNA level and the interactions between diseases and miRNAs at the disease level. Thus far, only a few miRNA-disease association pairs are known, and models analyzing miRNA-disease associations based on lncRNA are limited...
April 17, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29665655/mir-760-enhances-trail-sensitivity-in-non-small-cell-lung-cancer-via-targeting-the-protein-foxa1
#10
Xiang Zhang, Lei Wang, Yu Liu, Weicong Huang, Dezhi Cheng
Non-small cell lung cancer (NSCLC) is one of the leading cause of death worldwide. TNF-related apoptosis-inducing ligand (TRAIL) is a promising anti-tumor agent with the ability to kill tumor cells while spare normal ones. MicroRNAs (miRNAs) are small, non-coding RNAs that play vital roles in carcinogenesis. Although miR-760 has been reported to be dysregulated in a variety of cancers, the role of miR-760 in NSCLC is not fully understood, and the relationship between miR-760 dysregulation and TRAIL sensitivity is still elusive...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29665143/identification-of-potential-tumor-educated-platelets-rna-biomarkers-in-non-small-cell-lung-cancer-by-integrated-bioinformatical-analysis
#11
Linlin Xue, Li Xie, Xingguo Song, Xianrang Song
BACKGROUND: Platelets have emerged as key players in tumorigenesis and tumor progression. Tumor-educated platelet (TEP) RNA profile has the potential to diagnose non-small-cell lung cancer (NSCLC). The objective of this study was to identify potential TEP RNA biomarkers for the diagnosis of NSCLC and to explore the mechanisms in alternations of TEP RNA profile. METHODS: The RNA-seq datasets GSE68086 and GSE89843 were downloaded from Gene Expression Omnibus DataSets (GEO DataSets)...
April 17, 2018: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29659195/mir-541-suppresses-proliferation-and-invasion-of-squamous-cell-lung-carcinoma-cell-lines-via-directly-targeting-high-mobility-group-at-hook-2
#12
Li Xu, Bin Du, Qi-Jue Lu, Xiao-Wen Fan, Ke Tang, Lie Yang, Wei-Lin Liao
An increasing number of studies have demonstrated that micro-ribonucleic acids (miRNAs) are important tumor suppressors during carcinogenesis. However, the function of miRNA-541 (miR-541) in malignancies, especially lung cancer, has not been widely reported. In this study, miR-541 expression was significantly decreased in squamous cell lung carcinoma (SCLC) cancerous tissue and SCLC cell lines. To analyze miR-541 function in SCLC, we overexpressed miR-541 in SCLC cell lines (SK-MES-1 and H226). According to the CCK8, wound scratch, and transwell invasion assay results, miR-541 overexpression significantly inhibited SCLC cell proliferation, migration, and invasion ability...
April 16, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29658571/upregulation-of-hoxa1-promotes-tumorigenesis-and-development-of-non%C3%A2-small-cell-lung-cancer-a-comprehensive-investigation-based-on-reverse-transcription-quantitative-polymerase-chain-reaction-and-bioinformatics-analysis
#13
Yu Zhang, Xiao-Jiao Li, Rong-Quan He, Xiao Wang, Tong-Tong Zhang, Yuan Qin, Rui Zhang, Yun Deng, Han-Lin Wang, Dian-Zhong Luo, Gang Chen
Homeobox A1 (HOXA1) serves an oncogenic role in multiple cancer types. However, the role of HOXA1 in non‑small cell lung cancer (NSCLC) remains unclear. In the present study, use of reverse transcription-quantitative polymerase chain reaction and the databases of The Cancer Genome Atlas (TCGA), Oncomine, Gene Expression Profiling Interactive Analysis and the Multi Experiment Matrix were combined to assess the expression of HOXA1 and its co-expressed genes in NSCLC. Bioinformatic analyses, such as Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and network and protein-protein interaction analyses, were used to investigate the underlying molecular mechanism effected by the co-expressed genes...
April 16, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29656007/mir-195-potentiates-the-efficacy-of-microtubule-targeting-agents-in-non-small-cell-lung-cancer
#14
Xiaojie Yu, Yiqiang Zhang, Xiuye Ma, Alexander Pertsemlidis
Microtubule-targeting agents (MTAs) are widely used for the treatment of non-small cell lung cancer (NSCLC). The response rate is only ∼25%, mainly attributable to drug resistance. To identify determinants of resistance in NSCLC, we performed a high-throughput screen using a library of miRNA mimics. Here we report that miR-195 synergizes with MTAs to inhibit the growth of NSCLC cells in vitro, that increased expression of miR-195 sensitizes NSCLC cells to MTAs and that repression of miR-195 confers resistance to MTAs...
April 13, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29653464/microrna-130b-targets-pten-to-induce-resistance-to-cisplatin-in-lung-cancer-cells-by-activating-wnt-%C3%AE-catenin-pathway
#15
Qiang Zhang, Bin Zhang, Leina Sun, Qingna Yan, Yu Zhang, Zhenfa Zhang, Yanjun Su, Changli Wang
More and more studies indicate the relevance of miRNAs in inducing certain drug resistance. Our study aimed to investigate whether microRNA-130b-3p (miR-130b) mediates the chemoresistance as well as proliferation of lung cancer (LC) cells. MTS assay and apoptosis analysis were conducted to determine cell proliferation and apoptosis, respectively. Binding sites were identified using a luciferase reporter system, whereas mRNA and protein expression of target genes was determined by RT-PCR and immunoblot, respectively...
April 13, 2018: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/29653269/microrna-26a-is-a-key-regulon-that-inhibits-progression-and-metastasis-of-c-myc-ezh2-double-high-advanced-hepatocellular-carcinoma
#16
Xiang Zhang, Xiao Zhang, Ting Wang, Lei Wang, Zhijun Tan, Wei Wei, Bo Yan, Jing Zhao, Kaichun Wu, Angang Yang, Rui Zhang, Lintao Jia
Overexpressed c-Myc and EZH2 usually mean high malignancy in cancers. Most of mortality from cancer is attributable to metastasis. MicroRNAs(miRNAs), like transcription factors, can regulate hundreds of genes. Here, we identify microRNA-26a (miR-26a) suppresses EZH2 and c-Myc by targeting EZH2 and CDK8 in Wnt pathway. MiR-26a is a well-known tumor-suppressive miRNA in multiple cancers, but how it is downregulated in hepatocellular carcinoma (HCC) is still unclear. Here, we disclose miR-26a is epigenetic silenced by a c-Myc-mediated PRC2-depandent way in HCC...
April 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29652844/gga-mir-451-negatively-regulates-mycoplasma-gallisepticum-hs-strain-induced-inflammatory-cytokine-production-via-targeting-ywhaz
#17
Yabo Zhao, Kang Zhang, Mengyun Zou, Yingfei Sun, Xiuli Peng
Mycoplasma gallisepticum (MG) is the most economically significant mycoplasma pathogen of poultry that causes chronic respiratory disease (CRD) in chickens. Although miRNAs have been identified as a major regulator effect on inflammatory response, it is largely unclear how they regulate MG-induced inflammation. The aim of this study was to investigate the functional roles of gga-miR-451 and identify downstream targets regulated by gga-miR-451 in MG infection of chicken. We found that the expression of gga-miR-451 was significantly up-regulated during MG infection of chicken embryo fibroblast cells (DF-1) and chicken embryonic lungs...
April 13, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29624369/ultrasensitive-and-facile-detection-of-microrna-via-a-portable-pressure-meter
#18
Lu Shi, Jing Lei, Bei Zhang, Baoxin Li, Chaoyong James Yang, Yan Jin
The upregulation of microRNA (miRNA) is highly related with some kinds of tumor, such as breast, prostate, lung, and pancreatic cancers. Therefore, for an important tumor biomarker, the point-of-care testing (POCT) of miRNA is of significant importance and is in great demand for disease diagnosis and clinical prognoses. Herein, a POCT assay for miRNA detection was developed via a portable pressure meter. Two hairpin DNA probes, H1 and H2, were ingeniously designed and functionalized with magnetic beads (MBs) and platinum nanoparticles (PtNPs), respectively, to form MBs-H1 and PtNPs-H2 complexes...
April 6, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29620190/lncrnapcat29-inhibits-pulmonary-fibrosis-via-the-tgf%C3%A2-%C3%AE-1%C3%A2-regulated-rasal1-erk1-2-signal-pathway
#19
Xiaoming Liu, Shanyu Gao, Huile Xu
Pulmonary fibrosis is a severe respiratory disease characterized by the aggregation of extracellular matrix components and inflammation‑associated injury. Studies have suggested that long non‑coding RNAs (lncRNA) may serve a role in the pathophysiological processes of pulmonary fibrosis. However, the potential molecular mechanisms involving the lncRNA, prostate cancer‑associated transcript 29 (lncRNAPCAT29) in the progression of pulmonary fibrosis are yet to be determined. In the present study, the role of lncRNAPCAT29 and the potential signaling mechanism in pulmonary fibrosis progression was investigated...
March 28, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29617683/mir-140-expression-regulates-cell-proliferation-and-targets-pd-l1-in-nsclc
#20
Wei-Bin Xie, Li-Hui Liang, Kai-Ge Wu, Le-Xing Wang, Xin He, Cheng Song, Yun-Qi Wang, Yun-Hui Li
BACKGROUND/AIMS: Programmed death ligand1(PD-L1) plays a role in the development and progression of non-small cell lung cancer (NSCLC). This study aimed to identify miRNA(s) that are responsible for regulation of expression of PD-L1 in NSCLC, and to investigate the role of PD-L1 in regulation of the cell cycle in NSCLC. METHODS: We predicted the target miRNA of PD-L1, which was miR-140, using the online tools TargetScan and miBase. In NSCLC cells obtained from clinical specimens, in addition to A549 and NCI-H1650 cell cultures, western blots were used to detect the level of expression of proteins, while real-time PCR was used to determine the level of expression of PD-L1, miR-140, cyclin E, and β-actin...
March 28, 2018: Cellular Physiology and Biochemistry
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