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microRNA,lung cancer

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https://www.readbyqxmd.com/read/28817811/downregulation-of-microrna-330-correlates-with-the-radiation-sensitivity-and-prognosis-of-patients-with-brain-metastasis-from-lung-cancer
#1
Li-Peng Jiang, Zhi-Tu Zhu, Yue Zhang, Chun-Yan He
BACKGROUND: The present study sought to explore the role of microRNA-330 (miR-330) in predicting the radiation response and prognosis of patients with brain metastasis (BM) from lung cancer (LC). METHODS: Patients with BM from LC were identified and classified into radiation-sensitive and radiation-resistant groups according to the overall survival rate, local and distant recurrence rate after conventional whole-brain radiation therapy. Quantitative realtime polymerase chain reaction (qRT-PCR) was used to detect miR-330 expression in serum...
August 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28809453/a-meta-analysis-micrornas-prognostic-function-in-patients-with-nonsmall-cell-lung-cancer
#2
REVIEW
Na Yu, Qingjun Zhang, Qing Liu, Jiayu Yang, Sheng Zhang
Accumulating papers have demonstrated that microRNAs play an important role in the progression of lung cancer, mainly as oncogenic and tumor suppressive. Therefore, microRNAs may influence the survival of lung cancer patients. In this meta-analysis, we evaluated the role of microRNAs in affecting the overall survival in nonsmall cell lung cancer (NSCLC) patients, which may provide valuable information for the treatment of nonsmall cell lung cancer. We used keywords to retrieve literatures from online databases PUBMED, EMBASE and Web of Science and included 12 studies into our investigation according to pre-set criteria...
August 15, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28806401/a-gdf15-3-utr-variant-rs1054564-results-in-allele-specific-translational-repression-of-gdf15-by-hsa-mir-1233-3p
#3
Ming-Sheng Teng, Lung-An Hsu, Shu-Hui Juan, Wen-Chi Lin, Ming-Cheng Lee, Cheng-Wen Su, Semon Wu, Yu-Lin Ko
Growth differentiation factor 15 (GDF15) is a strong predictor of cardiovascular events and mortality in individuals with or without cardiovascular diseases. Single nucleotide polymorphisms (SNPs) in microRNA (miRNA) target sites, also known as miRSNPs, are known to enhance or weaken miRNA-mRNA interactions and have been linked to diseases such as cardiovascular disease and cancer. In this study, we aimed to elucidate the functional significance of the miRSNP rs1054564 in regulating GDF15 levels. Two rs1054564-containing binding sites for hsa-miR-873-5p and hsa-miR-1233-3p were identified in the 3' untranslated region (UTR) of the GDF15 transcript using bioinformatics tools...
2017: PloS One
https://www.readbyqxmd.com/read/28800790/mir-641-functions-as-a-tumor-suppressor-by-targeting-mdm2-in-human-lung-cancer
#4
Qinglong Kong, Nan Shu, Jun Li, Ning Xu
Lung cancer is the leading cause of deaths due to cancer. Studies suggest important role of microRNAs (miRNAs) in a variety of cancer, including lung cancer. In the present study, we evaluated the role of miR-641 in human lung cancer A549 cells. Quantitative RT-PCR and Western blot was used to measure the mRNA and protein expression, respectively. Cell viability and cell apoptosis were respectively measured by MTT assay and flow cytometry. Besides, luciferase activity assay was used to identify the target of miR-641...
August 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28800787/mir-449a-suppresses-ldha-mediated-glycolysis-to-enhance-the-sensitivity-of-non-small-cell-lung-cancer-cells-to-ionizing-radiation
#5
Liang Li, Huijuan Liu, Lianjiang Du, Pan Xi, Qian Wang, Yanqin Li, Di Liu
MicroRNA dysregulation contributes to malignant progression, dissemination and profound treatment resistance in multiple cancers. MiR-449a is recognized as a tumor suppresser. However, roles of miR-449a in lung cancers initiation and progression are largely unrevealed. Our study aims to investigate roles and the underlying mechanism of miR-449a in modulating sensitivity to ionizing radiation (IR) in non-small cell lung cancers (NSCLC). Lung cancer cells were transfected with miR-449a mimics or negative control and exposed to IR, levels of target protein, glycolysis, cell viability, apoptosis and DNA damage were examined...
August 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28800319/mir-503-3p-induces-apoptosis-of-lung-cancer-cells-by-regulating-p21-and-cdk4-expression
#6
Yi Sun, Li Li, Shigang Xing, Yinghua Pan, Yunxiang Shi, Linghua Zhang, Qiang Shen
Studies have shown that microRNAs (miRNAs) can promote or suppress tumor growth and therefore act as targets for cancer therapy. Hsa-miR-503-5p, a mature miRNA derived from 5' ends of pre-miR-503, has been proved to regulate cell proliferation, transformation, migration and invasion. However, the biological function of miR-503-3p derived from 3' ends of pre-miR-503 has never been reported. In current study, we found that miR-503-3p inhibits lung cancer cell viability and induces cell apoptosis. To better understand the molecular mechanism underlying the miR-503-3p participating in this process, PCR array and RNA-sequencing (RNA-seq) were performed and some differential expression genes were discovered between NC and miR-503-3p treated groups...
July 28, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28799568/association-of-long-non-coding-rna-h19-and-microrna-21-expression-with-the-biological-features-and-prognosis-of-non-small-cell-lung-cancer
#7
Y Zhou, B Sheng, Q Xia, X Guan, Y Zhang
In recent years, long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) have been shown to play important roles in tumor biological function. The aim of this study was to investigate the diagnostic and prognostic value of lncRNA H19 and miR-21 expression in non-small-cell lung cancer (NSCLC). H19 and miR-21 expression was measured in tumor tissues and corresponding non-tumor lung tissues from 200 patients by quantitative reverse transcription polymerase chain reaction. Moreover, the in vitro and in vivo effects of H19 knock out in A549 cells were investigated...
August 11, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28791372/microrna-212-functions-as-a-tumor-suppressor-in-human-non-small-cell-lung-cancer-by-targeting-sox4
#8
Tingting Tang, Liting Huan, Shujuan Zhang, Hui Zhou, Lei Gu, Xiaohui Chen, Liang Zhang
Increasing evidence has revealed that aberrant expression of miRNAs contributes to non-small cell lung cancer (NSCLC) development and progression. However, the roles and mechanisms of various miRNAs in NSCLC remain to be determined. In the present study, we confirmed that reduced miR-212 expression was present in NSCLC tissues and cell lines. Our clinical analysis revealed that the reduced miR-212 expression was significantly correlated with poor prognostic features including positive lymph node metastasis and advanced tumor-node-metastasis (TNM) stage...
August 7, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28791371/comprehensive-analysis-of-aberrantly-expressed-microrna-profiles-reveals-potential-biomarkers-of-human-lung-adenocarcinoma-progression
#9
Jing Sui, Ru-Song Yang, Si-Yi Xu, Yan-Qiu Zhang, Cheng-Yun Li, Sheng Yang, Li-Hong Yin, Yue-Pu Pu, Ge-Yu Liang
Lung adenocarcinoma (LUAD) is a complex disease that poses challenges for diagnosis and treatment. The aim of the present study is to investigate LUAD-specific key microRNAs (miRNAs) from large-scale samples in The Cancer Genome Atlas (TCGA) database. We used an integrative computational method to identify LUAD-specific key miRNAs related to TNM stage and lymphatic metastasis from the TCGA database. Twenty-five LUAD-specific key miRNAs (fold change >2, p<0.05) from the TCGA database were investigated, and 15 were found to be aberrantly expressed with respect to clinical features...
August 4, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28790336/identifying-the-mirna-signature-associated-with-survival-time-in-patients-with-lung-adenocarcinoma-using-mirna-expression-profiles
#10
Srinivasulu Yerukala Sathipati, Shinn-Ying Ho
Lung adenocarcinoma is a multifactorial disease. MicroRNA (miRNA) expression profiles are extensively used for discovering potential theranostic biomarkers of lung cancer. This work proposes an optimized support vector regression (SVR) method called SVR-LUAD to simultaneously identify a set of miRNAs referred to the miRNA signature for estimating the survival time of lung adenocarcinoma patients using their miRNA expression profiles. SVR-LUAD uses an inheritable bi-objective combinatorial genetic algorithm to identify a small set of informative miRNAs cooperating with SVR by maximizing estimation accuracy...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28781815/preliminary-data-on-microrna-expression-profiles-in-a-group-of-south-african-patients-diagnosed-with-chronic-myeloid-leukaemia
#11
Andrea Prinsloo, Roger Pool, Chantal Van Niekerk
Micro-ribonucleic acids (miRNAs) are small functional non-coding RNAs that downregulate gene expression at the post-transcriptional level. Abnormal expression of specific miRNAs has been recorded in chronic lymphocytic leukaemia, other non-Hodgkin B-cell lymphomas, lung cancer and chronic myeloid leukaemia (CML). The aim of this study was to compare miRNA expression profiles among patients with newly diagnosed CML, those on established therapy with imatinib mesylate, and healthy individuals. The expression of 88 miRNAs was evaluated in a total of nine samples divided into three groups: Group 1 comprised three samples collected from newly diagnosed CML patients; group 2 consisted of three samples collected from patients on therapy; the remaining three samples were collected from healthy volunteers (control group)...
September 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28771881/microrna-219-5p-inhibits-epithelial-mesenchymal-transition-and-metastasis-of-colorectal-cancer-by-targeting-lef1
#12
Lan-Xuan Huang, Chun-Yan Hu, Li Jing, Min-Cong Wang, Meng Xu, Jing Wang, Yu Wang, Ke-Jun Nan, Shu-Hong Wang
Aberrant expression of microRNAs (miRs) has been shown to play a critical role in the pathogenesis and progression of tumors. miR-219-5p has been reported to be abnormally expressed in some types of human tumors. However, the mechanism between miR-219-5p and colorectal cancer (CRC) metastasis remains unclear. In this study, miR-219-5p was found to be downregulated in CRC tissue compared with matched normal tissue. Through luciferase reporter assay, we demonstrated lymphoid enhancer-binding factor 1 (LEF1) as a direct target of miR-219-5p...
August 3, 2017: Cancer Science
https://www.readbyqxmd.com/read/28771442/oncomir-17-5p-alarm-signal-in-cancer
#13
REVIEW
Madhusudhan Reddy Bobbili, Robert M Mader, Johannes Grillari, Hanna Dellago
Soon after microRNAs entered the stage as novel regulators of gene expression, they were found to regulate -and to be regulated by- the development, progression and aggressiveness of virtually all human types of cancer. Therefore, miRNAs in general harbor a huge potential as diagnostic and prognostic markers as well as potential therapeutic targets in cancer.The miR-17-92 cluster was found to be overexpressed in many human cancers and to promote unrestrained cell growth, and has therefore been termed onco-miR-1...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28771186/epithelial-to-mesenchymal-transition-and-micrornas-in-lung-cancer
#14
REVIEW
Antoine Legras, Nicolas Pécuchet, Sandrine Imbeaud, Karine Pallier, Audrey Didelot, Hélène Roussel, Laure Gibault, Elizabeth Fabre, Françoise Le Pimpec-Barthes, Pierre Laurent-Puig, Hélène Blons
Despite major advances, non-small cell lung cancer (NSCLC) remains the major cause of cancer-related death in developed countries. Metastasis and drug resistance are the main factors contributing to relapse and death. Epithelial-to-mesenchymal transition (EMT) is a complex molecular and cellular process involved in tissue remodelling that was extensively studied as an actor of tumour progression, metastasis and drug resistance in many cancer types and in lung cancers. Here we described with an emphasis on NSCLC how the changes in signalling pathways, transcription factors expression or microRNAs that occur in cancer promote EMT...
August 3, 2017: Cancers
https://www.readbyqxmd.com/read/28770961/the-mir-224-promotes-non-small-cell-lung-cancer-cell-proliferation-by-directly-targeting-rassf8
#15
L Wang, W Liu, Y-P Zhang, X-R Huang
OBJECTIVE: The purpose of this study was to explore the mechanism of microRNA-224 (miR-224) in NSCLC. PATIENTS AND METHODS: Quantitative RT-PCR (qRT-PCR) was used to evaluate expression levels of miR-224. The association of miR-224 with the clinicopathologic features of NSCLC was evaluated in 56 patients. The roles of miR-224 in cell proliferation were analyzed in vivo and in vitro with pre-miR-224 transfected cells. Also, the regulation of RASSF8 by miR-224 was evaluated by qRT-PCR, Western blotting and luciferase reporter assays...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28769054/an-alternative-microrna-mediated-post-transcriptional-regulation-of-gadd45a-by-p53-in-human-non-small-cell-lung-cancer-cells
#16
Jie Li, Jie Dong, Shaohua Li, Wei Xia, Xueting Su, Xingliang Qin, Ying Chen, Hongmei Ding, Hui Li, Aixue Huang, Chenjun Bai, Tongnan Hu, Chenglong Wang, Bingfeng Chu, Ningsheng Shao
GADD45A (growth arrest and DNA damage inducible alpha), a stress response gene induced by genotoxic and nongenotoxic stresses, is implicated in various key processes, including the control of cell cycle checkpoints and DNA repair. The expression of GADD45A is directly regulated by numerous transcription factors, with p53 being the most representative. Moreover, post-transcriptional regulation also plays a role in GADD45A expression. However, little is known about the regulatory effects of microRNAs (miRNAs) on GADD45A expression...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28768807/folamirs-ligand-targeted-vehicle-free-delivery-of-micrornas-for-the-treatment-of-cancer
#17
Esteban A Orellana, Srinivasarao Tenneti, Loganathan Rangasamy, L Tiffany Lyle, Philip S Low, Andrea L Kasinski
MicroRNAs are small RNAs that negatively regulate gene expression posttranscriptionally. Because changes in microRNA expression can promote or maintain disease states, microRNA-based therapeutics are being evaluated extensively. Unfortunately, the therapeutic potential of microRNA replacement is limited by deficient delivery vehicles. In this work, microRNAs are delivered in the absence of a protective vehicle. The method relies on direct attachment of microRNAs to folate (FolamiR), which mediates delivery of the conjugated microRNA into cells that overexpress the folate receptor...
August 2, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28767432/identification-of-micrornas-as-potential-biomarkers-for-lung-adenocarcinoma-using-integrating-genomics-analysis
#18
Zhuo Peng, Longfei Pan, Zequn Niu, Wei Li, Xiaoyan Dang, Lin Wan, Rui Zhang, Shuanying Yang
Lung adenocarcinoma (LUAD) is the most common histological subtype of non-small cell lung cancer, but novel biomarkers for early diagnosis are lacking. Extensive effort has been exerted to identify miRNA biomarkers in LUAD. Unfortunately, high inter-lab variability and small sample sizes have produced inconsistent conclusions in this field. To resolve the above-mentioned limitations, we performed a comprehensive analysis based on LUAD miRNome profiling studies using the robust rank aggregation (RRA) method...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28767421/periostin-promotes-epithelial-mesenchymal-transition-via-the-mapk-mir-381-axis-in-lung-cancer
#19
Wei-Wei Hu, Po-Chun Chen, Jun-Ming Chen, Yue-Ming Wu, Po-Yi Liu, Chih-Hao Lu, Yu-Feng Lin, Chih-Hsin Tang, Chia-Chia Chao
Periostin (POSTN, PN, or osteoblast-specific factor OSF-2) is a multifunctional cytokine that signals between the cell and the extracellular matrix. Periostin plays an important role in tumor development and is involved in carcinoma cell epithelial-mesenchymal transition (EMT), whereby mature epithelial cells undergo phenotypic morphological changes and become invasive, motile cells. Here, we discuss the molecular mechanisms involved in periostin-induced promotion of EMT in lung cancer cells. Online TCGA datasets demonstrate the prognostic relevance of periostin in lung cancer; a higher periostin level correlates with poor overall survival...
July 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28765960/microrna-616-promotes-the-growth-and-metastasis-of-non-small-cell-lung-cancer-by-targeting-sox7
#20
Danping Wang, Qifeng Cao, Meijun Qu, Zhaoqun Xiao, Minghui Zhang, Songbo Di
MicroRNAs (miRNAs) are a group of important regulators in human types of cancer including non-small cell lung cancer (NSCLC). miR-616 has been found to be a novel cancer-related miRNA. However, the expression and biological function of miR-616 in NSCLC have not been investigated. In this study, qRT-PCR was performed to evaluate the level of miR-616 in NSCLC tissues. MTT, BrdU and Transwell assay were used to investigate the proliferation and metastasis ability of NSCLC cells. Subcutaneous injection model and tail vein injection model were used to evaluate the effect of miR-616 on the in vivo growth and metastasis of NSCLC cells...
July 28, 2017: Oncology Reports
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