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miRNA Lung cancer

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https://www.readbyqxmd.com/read/28521431/microrna-320a-is-downregulated-in-non-small-cell-lung-cancer-and-suppresses-tumor-cell-growth-and-invasion-by-directly-targeting-insulin-like-growth-factor-1-receptor
#1
Jianguo Wang, Chunyun Shi, Jianfei Wang, Li Cao, Li Zhong, Dongmei Wang
Accumulating evidence has demonstrated that microRNAs (miRs/miRNAs) are implicated in carcinogenesis and cancer progression, and can function as oncogenes or tumor suppressor genes in human cancer types. Previous profile studies of miRNA expression levels have revealed that miR-320a was downregulated in breast cancer, colon cancer, bladder cancer, glioblastoma and salivary adenoid cystic carcinoma. However, its expression level, potential functions and the mechanisms underlying its functions in non-small cell lung cancer (NSCLC) require further investigation...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28511796/attenuation-of-deregulated-mir-369-3p-expression-sensitizes-non-small-cell-lung-cancer-cells-to-cisplatin-via-modulation-of-the-nucleotide-sugar-transporter-slc35f5
#2
Guang-Jun Hao, Yan-Hui Ding, Hui Wen, Xiao-Feng Li, Wei Zhang, Hu-Yan Su, Dong-Mei Liu, Nian-Lin Xie
Deregulation of the microRNAs (miRNAs), a cluster of important posttranscriptional regulators, has been frequently associated with lung cancer (LCa). However, the emerging mechanism for how miRNAs is linked causally in the development of LCa chemoresistance is poorly understood. Herein, we established for the time the up-regulation of miR-369-3p in cisplatin (DDP)-resistant nonsmall cell lung cancer (NSCLC) tissues and cells. Its deregulation was found to be correlated to the magnitude of malignancy in well-characterized LCa cells...
May 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28510306/a-polymorphism-in-mir-1262-regulatory-region-confers-the-risk-of-lung-cancer-in-chinese-population
#3
Kaipeng Xie, Mengxi Chen, Meng Zhu, Cheng Wang, Na Qin, Cheng Liang, Ci Song, Juncheng Dai, Guangfu Jin, Hongbing Shen, Dongxing Lin, Hongxia Ma, Zhibin Hu
It has been proposed that the majority of disease-associated loci identified by genome-wide association studies (GWAS) are enriched in non-coding regions, such as the promoter, enhancer or non-coding RNA genes. Thus, we performed a two-stage case-control study to systematically evaluate the association of genetic variants in miRNA regulatory regions (promoter and enhancer) with lung cancer risk in 7,763 subjects (discovery stage: 2,331 cases and 3,077 controls; validation stage: 1,065 cases and 1,290 controls)...
May 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28505322/exosomes-in-toxicology-relevance-to-chemical-exposure-and-pathogenesis-of-environmentally-linked-diseases
#4
Dilshan S Harischandra, Shivani Ghaisas, Dharmin Rokad, Anumantha G Kanthasamy
Chronic exposure to environmental toxins has been known to initiate or aggravate various neurological disorders, carcinomas and other adverse health effects. Uptake by naïve cells of pathogenic factors such as danger-associated molecules, mRNAs, miRNAs or aggregated proteins leads to disruption in cellular homeostasis further resulting in inflammation and disease propagation. While early research tended to focus solely on exosomal removal of unwanted cellular contents, more recent reports indicate that these nano-vesicles play an active role in intercellular signaling...
May 15, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28503944/mir-133-involves-in-lung-adenocarcinoma-cell-metastasis-by-targeting-flot2
#5
Guangxia Wei, Yahuan Xu, Tao Peng, Jie Yan
BACKGROUND: Dysregulated microRNAs (miRNAs) reported to involve into the oncogenesis and progression in various human cancers. However, the roles and mechanism of miR-133 in lung adenocarcinoma remain largely unclear. METHODS: In this study, qPCR assay and western blot were used to detect the expression levels of miR-133, Akt and FLOT2. Luciferase reporter assay was used to identify the target role of miR-133 on FLOT2. The cell invasion and the migration capability were performed using the transwell invasion assay and wound healing assay...
May 14, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28501009/mir-205-as-a-biological-marker-in-non-small-cell-lung-cancer
#6
Baoqi Duan, Tao Guo, Haoliang Sun, Rui Cai, Qinglin Rui, Zhaoqing Xi
OBJECTION: The aim of this study is to explain the significance and mechanism of miR-205 in the diagnosis and treatment of non-small cell lung cancer. METHODS: The 70 advanced NSCLC patients, treated in our hospital, were collected from 2011.10 to 2013.9, taking the tissues from cancer and adjacent tissues to measure the miR-205 expression, evaluate the AKT gene and protein expression of cancer and adjacent normal tissues by RT-PCR and Immunohistochemistry (IHC) assays and analyzing the correlation between miR-205 and AKT...
May 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28500171/platelet-microparticles-infiltrating-solid-tumors-transfer-mirnas-that-suppress-tumor-growth
#7
James V Michael, Jeremy G T Wurtzel, Guang Fen Mao, A Koneti Rao, Mikhail A Kolpakov, Abdelkarim Sabri, Nicholas E Hoffman, Sudarsan Rajan, Dhanendra Tomar, Muniswamy Madesh, Marvin T Nieman, Johnny Yu, Leonard C Edelstein, Jesse W Rowley, Andrew S Weyrich, Lawrence E Goldfinger
Platelet-derived microparticles (PMPs) are associated with enhancement of metastasis and poor cancer outcomes. Circulating PMPs transfer platelet microRNAs (miRNAs) to vascular cells. Solid tumor vasculature is highly permeable, allowing the possibility of PMP-tumor cell interaction. Here we show that PMPs infiltrate solid tumors in humans and mice and transfer platelet-derived RNA, including miRNAs, to tumor cells in vivo and in vitro, resulting in tumor cell apoptosis. MiR-24 was a major species in this transfer...
May 12, 2017: Blood
https://www.readbyqxmd.com/read/28498428/differential-expression-profiles-of-micrornas-as-potential-biomarkers-for-the-early-diagnosis-of-lung-cancer
#8
Yanqiu Zhang, Jing Sui, Xian Shen, Chengyun Li, Wenzhuo Yao, Weiwei Hong, Hui Peng, Yuepu Pu, Lihong Yin, Geyu Liang
Lung cancer is one of the most lethal malignancies worldwide. To reduce the high morbidity and mortality of the disease, sensitive and specific biomarkers for early detection are urgently needed. Tumor-specific microRNAs (miRNAs) seem to be potential biomarkers for the early diagnosis and treatment of cancer. In this study, the microarray of miRNAs and mRNAs on the same samples was performed and the intersection taken with The Cancer Genome Atlas (TCGA) lung cancer miRNA/RNAseq dataset. Then, miRNA-mRNA regulatory network was constructed to identify miRNA candidates associated with lung cancer through integrating gene expression and miRNA-target prediction...
April 28, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28495058/mirna-profiling-of-primary-lung-and-head-and-neck-squamous-cell-carcinomas-addressing-a-diagnostic-dilemma
#9
Juan A Muñoz-Largacha, Adam C Gower, Praveen Sridhar, Anita Deshpande, Carl J O'Hara, Emiko Yamada, Tony E Godfrey, Hiran C Fernando, Virginia R Litle
OBJECTIVE: To determine whether microRNA (miRNA) profiling of primary lung and head and neck squamous cell carcinomas could be useful to identify a specific miRNA signature that can be used to further discriminate between primary lung squamous carcinomas and metastatic lesions in patients with a history of head and neck squamous cell cancer. METHODS: Specimens of resected primary head and neck and lung squamous cell carcinomas were obtained from formalin-fixed, paraffin-embedded blocks...
April 12, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28487996/mir-30a-5p-enhances-paclitaxel-sensitivity-in-non-small-cell-lung-cancer-through-targeting-bcl-2-expression
#10
Xiaojie Xu, Shuai Jin, Yongfu Ma, Zhongyi Fan, Zhifeng Yan, Wenchao Li, Qi Song, Wenye You, Zhaohui Lyu, Yeqiong Song, Pingan Shi, Ying Liu, Xiao Han, Ling Li, Ying Li, Yang Liu, Qinong Ye
Lung cancer remains the leading cause of cancer-related death worldwide. Paclitaxel, either as monotherapy or combined with other agents, is the standard treatment for advanced non-small cell lung cancer (NSCLC), the most common type of lung cancer. However, both de novo and acquired resistance against paclitaxel frequently occurs and represents a huge clinical problem. The underlying mechanisms remain poorly characterized. Here, by comparing microRNA (miRNA) expression levels using miRNA arrays, we observed differential expression of miR-30a-5p in two independent lung cancer cell pairs (paclitaxel-resistant vs paclitaxel-sensitive A549 cell lines)...
May 9, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28484014/selective-targeting-of-point-mutated-kras-through-artificial-micrornas
#11
Mario Acunzo, Giulia Romano, Giovanni Nigita, Dario Veneziano, Luigi Fattore, Alessandro Laganà, Nicola Zanesi, Paolo Fadda, Matteo Fassan, Lara Rizzotto, Raleigh Kladney, Vincenzo Coppola, Carlo M Croce
Mutated protein-coding genes drive the molecular pathogenesis of many diseases, including cancer. Specifically, mutated KRAS is a documented driver for malignant transformation, occurring early during the pathogenesis of cancers such as lung and pancreatic adenocarcinomas. Therapeutically, the indiscriminate targeting of wild-type and point-mutated transcripts represents an important limitation. Here, we leveraged on the design of miRNA-like artificial molecules (amiRNAs) to specifically target point-mutated genes, such as KRAS, without affecting their wild-type counterparts...
May 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28469790/mir-130-exerts-tumor-suppressive-function-on-the-tumorigenesis-of-human-non-small-cell-lung-cancer-by-targeting-pten
#12
Ling Ye, Yiming Wang, Lin Nie, Shen Qian, Meng Xu
MicroRNAs (miRNAs) have been involved in some human malignancies and correlated with tumor progression. The dysregulation of miR-130 is found in various cancers and correlated with tumor proliferation and apoptosis. However, its expression and function in non-small cell lung cancer (NSCLC) have not been investigated yet. In this study, we demonstrated that miR-130 is significantly down-regulated in NSCLC tissue samples and cell lines. Low miR-130 expression was closely associated with lymph node metastasis, late stages of disease progression and diminished survival in NSCLC patients...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28467770/a-prediction-model-for-distinguishing-lung-squamous-cell-carcinoma-from-adenocarcinoma
#13
Hui Li, Zhengran Jiang, Qixin Leng, Fan Bai, Juan Wang, Xiaosong Ding, Yuehong Li, Xianghong Zhang, HongBin Fang, Harris G Yfantis, Lingxiao Xing, Feng Jiang
Accurate classification of squamous cell carcinoma (SCC) from adenocarcinoma (AC) of non-small cell lung cancer (NSCLC) can lead to personalized treatments of lung cancer. We aimed to develop a miRNA-based prediction model for differentiating SCC from AC in surgical resected tissues and bronchoalveolar lavage (BAL) samples. Expression levels of seven histological subtype-associated miRNAs were determined in 128 snap-frozen surgical lung tumor specimens by using reverse transcription-polymerase chain reaction (RT-PCR) to develop an optimal panel of miRNAs for acutely distinguishing SCC from AC...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28460486/small-rna-sequencing-reveals-metastasis-related-micrornas-in-lung-adenocarcinoma
#14
Iben Daugaard, Morten T Venø, Yan Yan, Tina E Kjeldsen, Philippe Lamy, Henrik Hager, Jørgen Kjems, Lise Lotte Hansen
The majority of lung cancer deaths are caused by metastatic disease. MicroRNAs (miRNAs) are posttranscriptional regulators of gene expression and miRNA dysregulation can contribute to metastatic progression. Here, small RNA sequencing was used to profile the miRNA and piwi-interacting RNA (piRNA) transcriptomes in relation to lung cancer metastasis. RNA-seq was performed using RNA extracted from formalin-fixed paraffin embedded (FFPE) lung adenocarcinomas (LAC) and brain metastases from 8 patients, and LACs from 8 patients without detectable metastatic disease...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28460469/identification-of-microrna-885-5p-as-a-novel-regulator-of-tumor-metastasis-by-targeting-cpeb2-in-colorectal-cancer
#15
Colin Siu-Chi Lam, Lui Ng, Ariel Ka-Man Chow, Timothy Ming-Hun Wan, Simon Yau, Nathan Shiu-Man Cheng, Sunny Kit-Man Wong, Johnny Hon-Wai Man, Oswens Siu-Hung Lo, Dominic Chi-Chung Foo, Jensen Tung-Chung Poon, Roberta Wen-Chi Pang, Wai-Lun Law
Colorectal cancer is the third most common cancer in the world and liver is the most frequent site of distant metastasis with poor prognosis. The aim of this study is to investigate microRNAs leading to liver metastasis. We applied microarray analysis and quantitative PCR to identify and validate dysregulated miRNAs in liver metastases when compared to primary CRCs. Functional significance and the underlying molecular mechanism of selected miRNA was demonstrated by a series of in vitro and in vivo assays. Our microarray analysis and subsequent quantitative PCR validation revealed that miR-885-5p was strongly up-regulated in liver metastases and in CRC cell-lines derived from distant metastases...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28455989/polymorphisms-of-pri-mir-219-1-are-associated-with-the-susceptibility-and-prognosis-of-non-small-cell-lung-cancer-in-a-northeast-chinese-population
#16
Chang Zheng, Xuelian Li, Lingzi Xia, Xue Fang, Xiaowei Quan, Zhihua Yin, Yuxia Zhao, Baosen Zhou
Occurrence and development of non-small cell lung cancer (NSCLC) is a complex process affected both by gene and environment. Single nucleotide polymorphisms (SNPs) in microRNAs' (miRNAs) biogenesis influenced the expression of mature miRNAs, further had an impact on risk of NSCLC. Our study focused on the correlation between rs213210, rs421446 or rs107822 polymorphisms in pri-miR-219-1 and susceptibility or prognosis of NSCLC in Chinese. A case-control study of 405 new-diagnosis patients and 405 controls was performed...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28454411/identification-of-microrna-615-3p-as-a-novel-tumor-suppressor-in-non-small-cell-lung-cancer
#17
Heng-Ying Pu, Rui Xu, Mei-Yin Zhang, Lin-Jing Yuan, Jing-Ye Hu, Guo-Liang Huang, Hui-Yun Wang
Lung cancer is the most frequent cause of mortality in cancer patients; non-small-cell lung cancer (NSCLC) accounts for ~80% of lung cancer cases. MicroRNAs (miRNAs) have been revealed to perform an important role in cancer development and progression. Based on a custom miRNA microarray analysis of patients with NSCLC, miRNA-615-3p (miR-615-3p) downregulation was identified in NSCLC tissues compared with normal lung tissues, which suggested that miR-615-3p acted as a tumor suppressor in lung cancer. The overexpression of miR-615-3p was then validated using 40 pairs of NSCLC and adjacent normal tissue samples using a TaqMan reverse transcription-quantitative polymerase chain reaction assay...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454363/microrna-124-regulates-the-radiosensitivity-of-non-small-cell-lung-cancer-cells-by-targeting-txnrd1
#18
Chuncheng Hao, Xiangying Xu, Jia Ma, Jun Xia, Bingbing Dai, Lili Liu, Yuyan Ma
Radiation treatment remains one of the major modalities in the treatment of lung cancer. Although the majority of patients initially respond to treatment with radiation, resistance inevitably develops and leads to treatment failure. Therefore, the identification of the underlying molecular mechanisms of radiation resistance may facilitate the development of novel approaches for overcoming resistance, and enhance the efficacy of treatment with radiation in lung and other types of cancer. In the present study we established three radiation-resistant sub-cell lines derived from the radiation-sensitive lung cancer cell line HCC827...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454243/exosomal-microrna-in-plasma-as-a-non-invasive-biomarker-for-the-recurrence-of-non-small-cell-lung-cancer
#19
Hitoshi Dejima, Hisae Iinuma, Rie Kanaoka, Noriyuki Matsutani, Masafumi Kawamura
Predictive biomarkers for the recurrence of non-small cell lung cancer (NSCLC) in patients who have received curative resection are important for cancer treatment. The functional microRNAs (miRNAs/miRs) in the exosomes of plasma and serum samples are of interest as stable and non-invasive biomarkers for recurrence in cancer patients. The aim of the present study was to clarify the usefulness of plasma exosomal miRNAs as biomarkers for the prediction of recurrence in NSCLC following curative resection. First, microarray-based expression profiling of miRNAs derived from exosomes in the plasma of 6 patients was employed to identify a biomarker that distinguishes between patients with and without NSCLC recurrence...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453699/microrna-related-genetic-variants-in-iron-regulatory-genes-dietary-iron-intake-micrornas-and-lung-cancer-risk
#20
L Zhang, Y Ye, H Tu, M A Hildebrandt, L Zhao, J V Heymach, J A Roth, X Wu
Background: Genetic variations in MicroRNA (miRNA) binding sites may alter structural accessibility of miRNA binding sites to modulate risk of cancer. This large-scale integrative multistage study was aimed to evaluate the interplay of genetic variations in miRNA binding sites of iron regulatory pathway, dietary iron intake and lung cancer (LC) risk. Patients and methods: The interplay of genetic variant, dietary iron intake and LC risk was assessed in large-scale case-control study...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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