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microRNA,lung cancer

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
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
Qiang Zhen, Li-Na Gao, Ren-Feng Wang, Wei-Wei Chu, Ya-Xiao Zhang, Xiao-Jian Zhao, Bao-Lei Lv, Jia-Bao Liu
BACKGROUND: Long noncoding RNAs (lncRNAs) are a new class of cancer regulators. Here, we aimed to investigate the diagnostic and therapeutic values of an lncRNA, differentiation antagonizing noncoding RNA (DANCR), in lung cancer. METHODS: Real-time polymerase chain reaction was used to compare DANCR levels in normal and cancerous lung tissues as well as lung cancer cells. Lentiviral transduction was used to induce DANCR overexpression or silencing in vitro, followed by monitoring cell proliferation, colony formation, and changes in microRNA-216a (miR-216a) expression...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
Bingye Xue, Qing-Yi Lu, Larry Massie, Clifford Qualls, Jenny T Mao
MiR-106b is an oncomir and a potential target for anti-cancer therapy. We hypothesize that grape seed procyanidin extract (GSE) exerts antineoplastic effects on lung cancer through modulations of miR-106b and its downstream target. We found that GSE significantly down-regulated miR-106b in a variety of lung neoplastic cells and increased cyclin-dependent kinase inhibitor 1A ( CDKN1A ) mRNA and protein (p21) levels. Transfection of miR-106b mimics reversed the up-regulations of CDKN1A mRNA and p21, abrogated the GSE induced anti-proliferative and anti-invasive properties in lung cancer cells...
March 20, 2018: Oncotarget
L Kang, Y Huo, R F Wang, C L Zhang, P Yan, X J Xu
OBJECTIVE: MicroRNA-155 (miR-155) is significantly highly expressed in breast cancer, lung cancer, liver cancer and other malignant tumors. This study was to design and construct a radiolabeled probe targeting miR-155 for in vivo imaging in breast cancer. METHODS: Anti-miR-155 oligonucleotide (AMO-155) was chemically synthesized with 2' OMe modification. Its 5' end was linked with acetyl amine group. After chelated with a bifunctional chelator NHS-MAG3, AMO-155 was radiolabeled with 99m Tc using stannous chloride...
April 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Y-Z Dong, T Hu
OBJECTIVE: The functions of microRNAs in the regulation of apoptosis in non-small cell lung cancer (NSCLC) and the application in the therapeutical treatments were intensively studied. However, whether overexpression of miR-143 in lung cancer cells will affect the cell behaviors, such as proliferation or some underlying pathway, is largely unknown. This study aimed to examine the effect of miR-143 in PC9/GR cell line on the proliferation, apoptosis, EGFR and downstream signal pathways...
March 2018: European Review for Medical and Pharmacological Sciences
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
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
Xiao-Ning Gan, Ting-Qing Gan, Rong-Quan He, Jie Luo, Rui-Xue Tang, Han-Lin Wang, Hong Zhou, Hui Qing, Jie Ma, Xiao-Hua Hu, Gang Chen
The role of microRNA (miRNA)-452-5p in lung squamous cell carcinoma (LUSC) remains unclear. Therefore, the present systematic study was performed to investigate the clinical significance and the rudimentary mechanism of the function of miR-452-5p in LUSC. The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases were utilized to confirm the expression level and clinical value of miR-452-5p in LUSC. Using online databases and bioinformatic software, gene ontology (GO), pathway and protein-protein interaction (PPI) analyses of miR-452-5p target genes were performed to examine the molecular mechanism of miR-452-5p...
May 2018: Oncology Letters
Wenyan Zhu, Yongchi Ma, Xuqin Zhuang, Xin Jin
Nasopharyngeal carcinoma (NPC), which arises from the nasopharynx epithelium, is most common in Southeast Asia, particularly in Southern China. To date, a variety of microRNAs have been demonstrated to serve key functions in the progression and development of NPC. microRNA-425 (miR-425) has previously been reported to be frequently abnormally expressed in a number of different types of human cancer, including lung, gastric, cervical, breast and prostate cancer. However, to the best of our knowledge, the expression patterns, functions and underlying mechanisms of miR-425 in NPC remain largely unexplored...
May 2018: Oncology Letters
Yu Zhang, Jie Luo, Xiao Wang, Han-Lin Wang, Xiu-Ling Zhang, Ting-Qing Gan, Gang Chen, Dian-Zhong Luo
Long non-coding RNA HOXA11 antisense RNA (HOXA11-AS) has been previously reported to be involved in the tumorigenesis and progression of ovarian cancer and glioma. However, the function of HOXA11-AS in lung cancer remains unclear. Following the knockdown of HOXA11-AS in A549 cells, a microarray analysis was performed in order to detect the differences in microRNA (miRNA/miR) profiles. Subsequently, miR-642b-3p was selected for further analysis. Four miRNA target prediction algorithms were used to identify potential target genes of miR-642b-3p...
May 2018: Oncology Letters
Wei-Hsiang Kung, Chi-Lung Lee, Chi-Dung Yang, Ching-Fang Yu, Men-Yee Chiew, Fang-Hsin Chen, Hsien-Da Huang
BACKGROUND: Radiotherapy (RT) is a common approach that accounts for nearly 50% of cancer patient treatment and has the potential for long-term tumor control. Recently, we published a research article on gene expression profiling of tumor-associated macrophages (TAM) that were exposed to ionizing radiation (IR). Single-dose irradiation of tumors could initiate differentially expressed genes in TAM as a time series from irradiated tumors that are associated with the immune response. It is also well known that human cancers are associated with microRNA (miRNA) alterations that are involved in cancer progression...
March 13, 2018: Computational Biology and Chemistry
Hang Yin, Jianqun Ma, Lin Chen, Shiqi Piao, Yu Zhang, Siliang Zhang, Hongyu Ma, Yang Li, Yuanyuan Qu, Xiaoyuan Wang, Qingyong Xu
BACKGROUND/AIMS: Radiation therapy is an important and effective modality for the treatment of non-small cell lung cancer (NSCLC). MicroRNAs (miRNAs) are crucial post-transcriptional regulators that are involved in numerous important biologic processes. However, their potential involvement in radiation sensitivity remains unknown. MATERIALS: We performed integrated analysis of miRNA expression in NSCLC using The Cancer Genome Atlas datasets. miR-99a was found to be significantly upregulated in cancer tissue and regulated cell survival...
March 26, 2018: Cellular Physiology and Biochemistry
R Kian, S Moradi, S Ghorbian
MicroRNAs (miRNAs) are a broad class of non-coding RNAs nearly 21 nucleotides length, which play crucial functions in post-transcriptional gene regulation. These molecules are associated with many developmental and cellular processes in eukaryotic organisms. Current investigation has reported major factors contributing to miRNA biogenesis and has constituted basic principles of miRNA function. More recently, it was confirmed that various miRNAs are clearly implicated in human malignancies, such as lung, breast, ovarian, bladder, colon cancer and other kinds of carcinoma...
March 2018: Experimental Oncology
Juliana Guarize, Fabrizio Bianchi, Elena Marino, Elena Belloni, Manuela Vecchi, Stefano Donghi, Giorgio Lo Iacono, Chiara Casadio, Roberto Cuttano, Massimo Barberis, Pier Paolo Di Fiore, Francesco Petrella, Lorenzo Spaggiari
Background: Novel cancer biomarkers like microRNA (miRNA) are promising tools to gain a better understanding of lung cancer pathology and yield important information to guide therapy. In recent years, new less invasive methods for the diagnosis and staging of NSCLC have become key tools in thoracic oncology and the worldwide spread of endobronchial ultrasound transbronchial needle aspiration (EBUS-TBNA). However, appropriate specimen handling is mandatory to achieve adequate results and reproducibility...
January 2018: Journal of Thoracic Disease
Yasuhito Iseki, Masatsune Shibutani, Kiyoshi Maeda, Hisashi Nagahara, Tatsunari Fukuoka, Shinji Matsutani, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: miR-96 is reported to inhibit reversion cysteine-rich Kazal motif (RECK), which is associated with tumor invasion, in solid cancer types (e.g. breast cancer, non-small cell lung cancer, esophageal cancer). The purpose of this study is to clarify whether miR-96 is similarly associated with tumor invasion in colorectal cancer. MATERIALS AND METHODS: We performed western blotting to investigate the expression of RECK when miR-96 mimics or inhibitors were transferred into HCT-116 colorectal cancer cells...
April 2018: Anticancer Research
Jared B Cooper, Jennifer S Ronecker, Michael E Tobias, Avinash L Mohan, Virany Hillard, Raj Murali, Chirag D Gandhi, Meic H Schmidt, Meena Jhanwar-Uniyal
Brain metastases are the leading cause of morbidity and mortality among cancer patients, and are reported to occur in about 40% of cancer patients with metastatic disease in the United States of America. Primary tumor cells appear to detach from the parent tumor site, migrate, survive and pass through the blood brain barrier in order to establish cerebral metastases. This complex process involves distinct molecular and genetic mechanisms that mediate metastasis from these primary organs to the brain. Furthermore, an interaction between the invading cells and cerebral milieu is shown to promote this process as well...
April 2018: Anticancer Research
Cheng-Liang Yang, Xiao-Li Zheng, Ke Ye, Hong Ge, Ya-Nan Sun, Yu-Fei Lu, Qing-Xia Fan
BACKGROUNDS/AIMS: MicroRNAs (miRs) often contribute to the progression of non-small cell lung cancer (NSCLC) via regulation of mRNAs that are involved in lung homeostasis. We conducted a study aimed at exploring the roles of miR-183 in the proliferation, epithelial-mesenchymal transition (EMT), invasion and migration of human NSCLC cells via targeting MTA1. METHODS: NSCLC and adjacent normal tissues were collected from 194 patients with NSCLC. Positive expression of MTA1 protein was detected by immunohistochemistry...
March 20, 2018: Cellular Physiology and Biochemistry
Zhi Hao Kwok, Veronique Roche, Xiao Hong Chew, Anastasiia Fadieieva, Yvonne Tay
Long noncoding RNAs (lncRNAs) constitute one of the largest classes of transcripts and have been widely implicated in various diseases such as cancer. Increasing evidence suggests that several lncRNAs are dysregulated and play critical roles in tumorigenesis. LncRNAs can be regulated by key oncogenes and tumor suppressors, adding complexity to the intricate crosstalk between protein coding genes and the non-coding transcriptome. In this study, we investigated the effect that dysregulation of the key tumor suppressor PTEN has on the non-coding transcriptome...
March 25, 2018: International Journal of Cancer. Journal International du Cancer
Hedyieh Karbasforooshan, Ali Roohbakhsh, Gholamreza Karimi
Breast cancer and prostate cancer are the most common malignant tumors in female and men, respectively. Furthermore, lung cancer is the leading cause of cancer deaths worldwide. It is an emergency to develop a powerful strategy to treat these threatening cancers more effectively, because of low efficacy and high rates of chemotherapy effects. MicroRNAs (miRNAs), a class of small non-coding RNAs, are key regulators of gene expression via induction of translational repression or mRNA degradation. MiRNA deregulation has been linked to cancer initiation and progression...
March 21, 2018: Experimental Cell Research
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