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https://www.readbyqxmd.com/read/27882350/plasma-vesicle-mirnas-for-therapy-response-monitoring-in-hodgkin-lymphoma-patients
#1
Monique A J van Eijndhoven, Josée M Zijlstra, Nils J Groenewegen, Esther E E Drees, Stuart van Niele, S Rubina Baglio, Danijela Koppers-Lalic, Hans van der Voorn, Sten F W M Libregts, Marca H M Wauben, Renee X de Menezes, Jan R T van Weering, Rienk Nieuwland, Lydia Visser, Anke van den Berg, Daphne de Jong, D Michiel Pegtel
BACKGROUND. Cell-free circulating nucleic acids, including 22-nt microRNAs (miRNAs), represent noninvasive biomarkers for treatment response monitoring of cancer patients. While the majority of plasma miRNA is bound to proteins, a smaller, less well-characterized pool is associated with extracellular vesicles (EVs). Here, we addressed whether EV-associated miRNAs reflect metabolic disease in classical Hodgkin lymphoma (cHL) patients. METHODS. With standardized size-exclusion chromatography (SEC), we isolated EV-associated extracellular RNA (exRNA) fractions and protein-bound miRNA from plasma of cHL patients and healthy subjects...
November 17, 2016: JCI Insight
https://www.readbyqxmd.com/read/27876571/fusobacterium-nucleatum-increases-proliferation-of-colorectal-cancer-cells-and-tumor-development-in-mice-by-activating-tlr4-signaling-to-nf%C3%AE%C2%BAb-upregulating-expression-of-microrna-21
#2
Yongzhi Yang, Wenhao Weng, Junjie Peng, Leiming Hong, Lei Yang, Yuji Toiyama, Renyuan Gao, Minfeng Liu, Mingming Yin, Cheng Pan, Hao Li, Bomin Guo, Qingchao Zhu, Qing Wei, Mary-Pat Moyer, Ping Wang, Sanjun Cai, Ajay Goel, Huanlong Qin, Yanlei Ma
BACKGROUND & AIMS: Nearly 20% of the global cancer burden can be linked to infectious agents. Fusobacterium nucleatum promotes tumor formation by epithelial cells via unclear mechanisms. We aimed to identify microRNAs (miRNAs) induced by F nucleatum and evaluate their ability to promote colorectal carcinogenesis in mice. METHODS: Colorectal cancer (CRC) cell lines were incubated with F nucleatum or control reagents and analyzed in proliferation and would healing assays...
November 19, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27793885/molecular-mechanisms-of-anti-metastatic-activity-of-curcumin
#3
REVIEW
Y I Deng, Elise Verron, Ramin Rohanizadeh
Cancer is the leading cause of death worldwide. Although cancer occurs as a localized disease, its morbidity and mortality rates remain high due to the ability of cancer cells to break-off from the primary tumor and spread to distant organs. Currently, chemotherapy is the main treatment for cancer; however, the increase in proportion of drug-resistant cancer cells and unpleasant side-effects of chemotherapy are still the major challenges in cancer therapy. Curcumin is a natural polyphenol compound and the main bioactive constituent of Indian spice turmeric, widely used in Indian and Chinese medicines...
November 2016: Anticancer Research
https://www.readbyqxmd.com/read/27685844/circulating-plasma-levels-of-microrna-21-and-microrna-221-are-potential-diagnostic-markers-for-primary-intrahepatic-cholangiocarcinoma
#4
Camilo Correa-Gallego, Danilo Maddalo, Alexandre Doussot, Nancy Kemeny, T Peter Kingham, Peter J Allen, Michael I D'Angelica, Ronald P DeMatteo, Doron Betel, David Klimstra, William R Jarnagin, Andrea Ventura
BACKGROUND: MicroRNAs (miRNAs) are potential biomarkers in various malignancies. We aim to characterize miRNA expression in intrahepatic cholangiocarcinoma (ICC) and identify circulating plasma miRNAs with potential diagnostic and prognostic utility. METHODS: Using deep-sequencing techniques, miRNA expression between tumor samples and non-neoplastic liver parenchyma were compared. Overexpressed miRNAs were measured in plasma from an independent cohort of patients with cholangiocarcinoma using RT-qPCR and compared with that healthy volunteers...
2016: PloS One
https://www.readbyqxmd.com/read/27635204/inhibition-of-microrna-21-decreases-the-invasiveness-of-fibroblast-like-synoviocytes-in-rheumatoid-arthritis-via-tgf%C3%AE-smads-signaling-pathway
#5
Gaoxin Xiong, Zhang Huang, Hua Jiang, Zhengjun Pan, Jie Xie, Shuangli Wang
OBJECTIVES: MicroRNA-21 (miR21) is aberrantly elevated in rheumatoid arthritis (RA) patients, the significance of this microRNA in RA pathogenesis and treatment, however, has not been investigated. In this study, by using RA-derived fibroblast-like synoviocyte (FLS) cells as a model, we investigated the effect and corresponding mechanism of miR21 inhibition on FLSs invasion. MATERIALS AND METHODS: miR21 expression in synovial tissue and FLSs in RA patients and non-RA controls were determined by stem-loop RT-PCR...
July 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27602766/rig-g-is-a-growth-inhibitory-factor-of-lung-cancer-cells-that-suppresses-stat3-and-nf-%C3%AE%C2%BAb
#6
Dong Li, Junjun Sun, Wenfang Liu, Xuan Wang, Robert Bals, Junlu Wu, Wenqiang Quan, Yiwen Yao, Yu Zhang, Hong Zhou, Kaiyin Wu
The expression of the retinoic acid-induced G (Rig-G) gene, an all trans retinoic acid (ATRA)-inducible gene, was observed in multiple cancer cells, including lung cancer cells. However, whether Rig-G is a tumor suppressor in lung cancer is unknown. Here, we found that ectopic expression of Rig-G can lead to a significant decrease in proliferation of lung cancer cells, resulting in an inhibition of tumor growth. Rig-G knockdown results in a modest increase in cell proliferation, as well as confers an increase in colony formation...
September 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27517690/the-effects-of-low-level-laser-irradiation-on-breast-tumor-in-mice-and-the-expression-of-let-7a-mir-155-mir-21-mir125-and-mir376b
#7
Vahid Khori, Ali Mohammad Alizadeh, Zohre Gheisary, Sadaf Farsinejad, Farrokh Najafi, Solmaz Khalighfard, Fatemeh Ghafari, Maryam Hadji, Hamid Khodayari
Low-level laser therapy (LLLT) is a form of photon therapy which can be a non-invasive therapeutic procedure in cancer therapy using low-intensity light in the range of 450-800 nm. One of the main functional features of laser therapy is the photobiostimulation effects of low-level lasers on various biological systems including altering DNA synthesis and modifying gene expression, and stopping cellular proliferation. This study investigated the effects of LLLT on mice mammary tumor and the expression of Let-7a, miR155, miR21, miR125, and miR376b in the plasma and tumor samples...
December 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27509989/roles-of-microrna21-and-microrna29a-in-regulating-cell-adhesion-related-genes-in-bone-metastasis-secondary-to-prostate-cancer
#8
Maisarah Mohamad, Norhazlina Abdul Wahab, Rosna Yunus, Nor Azian Abdul Murad, Zulkifli Md Zainuddin, Murali Sundaram, Norfilza Mohd Mokhtar
BACKGROUND: There is an increasing concern in the role of microRNA (miRNA) in the pathogenesis of bone metastasis (BM) secondary to prostate cancer (CaP). In this exploratory study, we hypothesized that the expression of vinculin (VCL) and chemokine X3C ligand 1 (CX3CL1) might be downregulated in clinical samples, most likely due to the posttranscriptional modification by microRNAs. Targeted genes would be upregulated upon transfection of the bone metastatic prostate cancer cell line, PC3, with specific microRNA inhibitors...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27509928/gastric-carcinoma-recent-trends-in-diagnostic-biomarkers-and-molecular-targeted-therapies
#9
Wafa Majeed, Asra Iftikhar, Tanweer Khaliq, Bilal Aslam, Humaira Muzaffar, Komal Atta, Aisha Mahmood, Shahid Waris
Gastric cancer is generally associated with poor survival rates and accounts for a remarkable proportion of global cancer mortality. The prevalence of gastric carcinoma varies in different regions of world and across teh various ethnic groups. On the basis of pathological assessment, gastric cancer can be categorized as intestinal and diffuse carcinomas. The etiology is diverse, including chemical carcinogen exposure, and high salt intake Helicobacter pylori also plays a vital role in the pathogenesis of certain gastric carcinomas...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27493725/essential-amino-acid-ratios-and-mtor-affect-lipogenic-gene-networks-and-mirna-expression-in-bovine-mammary-epithelial-cells
#10
Shanshan Li, Afshin Hosseini, Marina Danes, Carolina Jacometo, Jianxin Liu, Juan J Loor
BACKGROUND: The objective of this study was to study how changing the ratio of Lys to Thr, Lys to His, and Lys to Val affects the expression of lipogenic genes and microRNA (miRNA) in bovine mammary epithelial cells. RESULTS: Triplicate cultures with the respective "optimal" amino acid (AA) ratio (OPAA = Lys:Met 2.9:1; Thr:Phe 1.05:1; Lys:Thr 1.8:1; Lys:His 2.38:1; Lys:Val 1.23:1) plus rapamycin (OPAARMC; positive control), OPAA, Lys:Thr 2.1:1 (LT2.1), Lys:Thr 1...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27188433/microrna-21-promotes-cell-proliferation-migration-and-resistance-to-apoptosis-through-pten-pi3k-akt-signaling-pathway-in-esophageal-cancer
#11
Yan-Ran Wu, Hai-Jun Qi, Dan-Fang Deng, Ying-Ying Luo, Sheng-Lan Yang
Our study aimed to explore associations between microRNA-21 (miR-21) and PTEN/PI3K/AKT signaling pathway and, further, to elucidate the regulation of miR-21 on biological behaviors in human esophageal cancer cells. The expressions of miR-21, PTEN, PI3K, and AKT were detected in 89 esophageal cancer samples and 58 adjacent normal tissues respectively. The human esophageal cancer cells (TE11) were grouped as following: blank (TE11 cells without transfection), negative (TE11 cells with miR-21 negative inhibitor), and Inhibition-miR21 (TE11 cells with miR-21 inhibitor)...
May 17, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27160852/celastrol-induced-suppression-of-the-mir-21-erk-signalling-pathway-attenuates-cardiac-fibrosis-and-dysfunction
#12
Mian Cheng, Gang Wu, Yue Song, Lin Wang, Ling Tu, Lizhi Zhang, Cuntai Zhang
UNLABELLED: Backgroud: Myocardial fibrosis results in myocardial remodelling and dysfunction. Celastrol, a traditional oriental medicine, has been suggested to have cardioprotective effects. However, its underlying mechanism is unknown. This study investigated the ability of celastrol to prevent cardiac fibrosis and dysfunction and explored the underlying mechanisms. METHODS: Animal and cell models of cardiac fibrosis were used in this study. Myocardial fibrosis was induced by transverse aortic constriction (TAC) in mice...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27159391/reciprocal-interplay-between-thyroid-hormone-and-microrna-21-regulates-hedgehog-pathway-driven-skin-tumorigenesis
#13
Daniela Di Girolamo, Raffaele Ambrosio, Maria A De Stefano, Giuseppina Mancino, Tommaso Porcelli, Cristina Luongo, Emery Di Cicco, Giulia Scalia, Luigi Del Vecchio, Annamaria Colao, Andrzej A Dlugosz, Caterina Missero, Domenico Salvatore, Monica Dentice
The thyroid hormone-inactivating (TH-inactivating) enzyme type 3 iodothyronine deiodinase (D3) is an oncofetal protein that is rarely expressed in adult life but has been shown to be reactivated in the context of proliferation and neoplasms. D3 terminates TH action within the tumor microenvironment, thereby enhancing cancer cell proliferation. However, the pathological role of D3 and the contribution of TH metabolism in cancer have yet to be fully explored. Here, we describe a reciprocal regulation between TH action and the cancer-associated microRNA-21 (miR21) in basal cell carcinoma (BCC) skin tumors...
June 1, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27158780/distinct-patterns-of-somatic-genome-alterations-in-lung-adenocarcinomas-and-squamous-cell-carcinomas
#14
Joshua D Campbell, Anton Alexandrov, Jaegil Kim, Jeremiah Wala, Alice H Berger, Chandra Sekhar Pedamallu, Sachet A Shukla, Guangwu Guo, Angela N Brooks, Bradley A Murray, Marcin Imielinski, Xin Hu, Shiyun Ling, Rehan Akbani, Mara Rosenberg, Carrie Cibulskis, Aruna Ramachandran, Eric A Collisson, David J Kwiatkowski, Michael S Lawrence, John N Weinstein, Roel G W Verhaak, Catherine J Wu, Peter S Hammerman, Andrew D Cherniack, Gad Getz, Maxim N Artyomov, Robert Schreiber, Ramaswamy Govindan, Matthew Meyerson
To compare lung adenocarcinoma (ADC) and lung squamous cell carcinoma (SqCC) and to identify new drivers of lung carcinogenesis, we examined the exome sequences and copy number profiles of 660 lung ADC and 484 lung SqCC tumor-normal pairs. Recurrent alterations in lung SqCCs were more similar to those of other squamous carcinomas than to alterations in lung ADCs. New significantly mutated genes included PPP3CA, DOT1L, and FTSJD1 in lung ADC, RASA1 in lung SqCC, and KLF5, EP300, and CREBBP in both tumor types...
June 2016: Nature Genetics
https://www.readbyqxmd.com/read/27156338/impact-of-clotting-condition-on-the-measurement-of-circulating-micrornas-in-serum
#15
Kazunari Hayashi, Yoko Tabe, Takashi Miida
BACKGROUND: Circulating microRNA (miRNA) biomarkers have attracted attention as possible blood-based indicators of disease. However, pre-analytic technical issues including serum preparation remain problematic for the clinical translation of such technology. This study investigated the effect of decreased sample preparation time on miRNA measurement. METHODS: Blood samples obtained from healthy donors were drawn into blood collection tubes with or without clot activator, and sera were obtained at different preparation time points...
2016: Clinical Laboratory
https://www.readbyqxmd.com/read/27125502/specific-delivery-of-mirna-for-high-efficient-inhibition-of-prostate-cancer-by-rna-nanotechnology
#16
Daniel W Binzel, Yi Shu, Hui Li, Meiyan Sun, Qunshu Zhang, Dan Shu, Bin Guo, Peixuan Guo
Both siRNA and miRNA can serve as powerful gene-silencing reagents but their specific delivery to cancer cells in vivo without collateral damage to healthy cells remains challenging. We report here the application of RNA nanotechnology for specific and efficient delivery of anti-miRNA seed-targeting sequence to block the growth of prostate cancer in mouse models. Utilizing the thermodynamically ultra-stable three-way junction of the pRNA of phi29 DNA packaging motor, RNA nanoparticles were constructed by bottom-up self-assembly containing the anti-prostate-specific membrane antigen (PSMA) RNA aptamer as a targeting ligand and anti-miR17 or anti-miR21 as therapeutic modules...
August 2016: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/27119371/identification-of-mirnas-as-potential-biomarkers-in-cerebrospinal-fluid-from-amyotrophic-lateral-sclerosis-patients
#17
Michele Benigni, Claudia Ricci, Ashley R Jones, Fabio Giannini, Ammar Al-Chalabi, Stefania Battistini
Amyotrophic lateral sclerosis (ALS) is a progressive, fatal neurodegenerative disorder. Since no diagnostic laboratory test exists, the identification of specific biomarkers could be fundamental in clinical practice. microRNAs (miRNAs) are considered promising biomarkers for neurodegenerative diseases. The aim of the study was to identify a CSF miRNA set that could differentiate ALS from non-ALS condition. miRNA profiling in CSF from ALS patients (n = 24; eight with C9orf72 expansion) and unaffected control subjects (n = 24) by quantitative reverse transcription PCR identified fourteen deregulated miRNAs...
December 2016: Neuromolecular Medicine
https://www.readbyqxmd.com/read/27084064/microrna-21-and-pdcd4-expression-during-in-vitro-oocyte-maturation-in-pigs
#18
Elane C Wright, Benjamin J Hale, Cai-Xia Yang, Josephat G Njoka, Jason W Ross
BACKGROUND: MicroRNA (miRNA) are small non-coding RNA molecules critical for regulating cellular function, and are abundant in the maturing oocyte and developing embryo. MiRNA-21 (MIR21) has been shown to elicit posttranscriptional gene regulation in several tissues associated with rapid cell proliferation in addition to demonstrating anti-apoptotic features through interactions with PDCD4 mRNA and other targets. In many tissues, MIR21 interacts and suppresses PDCD4 due to the strong complementation between MIR21 and the PDCD4 3'UTR...
2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27021436/exosomal-transfer-of-stroma-derived-mir21-confers-paclitaxel-resistance-in-ovarian-cancer-cells-through-targeting-apaf1
#19
Chi Lam Au Yeung, Ngai-Na Co, Tetsushi Tsuruga, Tsz-Lun Yeung, Suet-Ying Kwan, Cecilia S Leung, Yong Li, Edward S Lu, Kenny Kwan, Kwong-Kwok Wong, Rosemarie Schmandt, Karen H Lu, Samuel C Mok
Advanced ovarian cancer usually spreads to the visceral adipose tissue of the omentum. However, the omental stromal cell-derived molecular determinants that modulate ovarian cancer growth have not been characterized. Here, using next-generation sequencing technology, we identify significantly higher levels of microRNA-21 (miR21) isomiRNAs in exosomes and tissue lysates isolated from cancer-associated adipocytes (CAAs) and fibroblasts (CAFs) than in those from ovarian cancer cells. Functional studies reveal that miR21 is transferred from CAAs or CAFs to the cancer cells, where it suppresses ovarian cancer apoptosis and confers chemoresistance by binding to its direct novel target, APAF1...
March 29, 2016: Nature Communications
https://www.readbyqxmd.com/read/27014996/expression-of-micrornas-mir21-mir146a-and-mir155-in-tuberous-sclerosis-complex-cortical-tubers-and-their-regulation-in-human-astrocytes-and-sega-derived-cell-cultures
#20
J van Scheppingen, A M Iyer, A S Prabowo, A Mühlebner, J J Anink, T Scholl, M Feucht, F E Jansen, W G Spliet, P Krsek, J Zamecnik, A M Buccoliero, F Giordano, L Genitori, K Kotulska, S Jozwiak, J Jaworski, E Liszewska, E A van Vliet, E Aronica
Tuberous sclerosis complex (TSC) is a genetic disease presenting with multiple neurological symptoms including epilepsy, mental retardation, and autism. Abnormal activation of various inflammatory pathways has been observed in astrocytes in brain lesions associated with TSC. Increasing evidence supports the involvement of microRNAs in the regulation of astrocyte-mediated inflammatory response. To study the role of inflammation-related microRNAs in TSC, we employed real-time PCR and in situ hybridization to characterize the expression of miR21, miR146a, and miR155 in TSC lesions (cortical tubers and subependymal giant cell astrocytomas, SEGAs)...
June 2016: Glia
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