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Lymphoma AND miRNA

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https://www.readbyqxmd.com/read/28181423/next-generation-sequencing-of-mirnas-in-clinical-samples-of-epstein-barr-virus-associated-b-cell-lymphomas
#1
Kouta Sakamoto, Tsuyoshi Sekizuka, Taeko Uehara, Tsunekazu Hishima, Sohtaro Mine, Hitomi Fukumoto, Yuko Sato, Hideki Hasegawa, Makoto Kuroda, Harutaka Katano
Epstein-Barr virus (EBV) encodes 49 microRNAs (miRNAs) in the BART and BHRF1 regions of its genome. Although expression profiles of EBV-encoded miRNAs have been reported for EBV-positive cell lines and nasopharyngeal carcinoma, to date there is little information about total miRNA expression, including cellular and viral miRNAs, in the primary tumors of EBV-associated B-lymphoproliferative disorders. In this study, next-generation sequencing and quantitative real-time reverse transcription-PCR were used to determine the expression profiles of miRNAs in EBV-infected cell lines and EBV-associated B-cell lymphomas, including AIDS-related diffuse large B-cell lymphoma (DLBCL), pyothorax-associated lymphoma, methotrexate-associated lymphoproliferative disorder, EBV-positive DLBCL of the elderly, and Hodgkin lymphoma...
February 9, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28177900/mcmda-matrix-completion-for-mirna-disease-association-prediction
#2
Jian-Qiang Li, Zhi-Hao Rong, Xing Chen, Gui-Ying Yan, Zhu-Hong You
Nowadays, researchers have realized that microRNAs (miRNAs) are playing a significant role in many important biological processes and they are closely connected with various complex human diseases. However, since there are too many possible miRNA-disease associations to analyze, it remains difficult to predict the potential miRNAs related to human diseases without a systematic and effective method. In this study, we developed a Matrix Completion for MiRNA-Disease Association prediction model (MCMDA) based on the known miRNA-disease associations in HMDD database...
February 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28148469/prognostic-value-of-mirna-155-expression-in-b-cell-non-hodgkin-s-lymphoma
#3
Ahmed M L Bedewy, Shereen M Elmaghraby, Ahmed A Shehata, Noha S Kandil
OBJECTIVE: miRNA-155 resides within the B-cell Integration Cluster [BIC] gene on chromosome 21. It can act either as oncogene or as tumor suppressor gene, depending on the cell background in which miRNA-155 is performing its specific target gene controlling function. Therefore, the aim of this study was to investigate miRNA-155 expression in patients with B-cell Non Hodgkin's lymphoma (NHL) and its relation to disease prognosis in diffuse large B cell lymphoma (DLBCL) patients. MATERIALS AND METHODS: RT-PCR assay was performed to evaluate the expression levels of miRNA-155 in 84 patients with newly diagnosed B-NHL and 15 normal controls...
February 1, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28132860/mantle-cell-lymphoma-with-a-novel-t-11-12-q13-p11-2-a-proposed-alternative-mechanism-of-ccnd1-upregulation
#4
Joshua R Menke, George Vasmatzis, Stephen Murphy, Lin Yang, David M Menke, Han W Tun, Rebecca L King, Stephanie A Smoley, Rhett P Ketterling, William R Sukov
Mantle cell lymphoma (MCL) is typically characterized by t(11;14) which places the IGH@ enhancer elements upstream of CCND1. This fusion results in upregulation of CCND1 and consequently its protein product cyclin D1. Recent studies have shown that in MCL, mutations or translocations occurring within the 3' untranslated region (UTR) of the CCND1 gene can result in a truncated mRNA transcript that is more stable and associated with more aggressive disease. We identified a case of MCL showing cyclin D1 overexpression by immunohistochemistry and a t(11;12)(q13;p11...
January 26, 2017: Human Pathology
https://www.readbyqxmd.com/read/28128734/microrna-profiling-in-peripheral-t-cell-lymphoma-not-otherwise-specified
#5
Yun Lin, Wei-Ming Chen, Chen Wang, Xiao-Yan Chen
BACKGROUND: Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) is an obviously heterogeneous and highly invasive malignancy without definite phenotype. MicroRNAs (miRNAs) are powerful gene regulators and have been reported as biomarkers in many malignancies. OBJECTIVE: To discover potential signaling miRNAs in PTCL-NOS distinguished from reactive lymphoid hyperplasia (RLH) and to explore the molecular characteristics based on the discovery. METHODS: We measured the expression profile of miRNAs in PTCL-NOS and RLH from our patients using a panel PCR array...
January 20, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28113043/activation-of-gga-mir-155-by-reticuloendotheliosis-virus-t-strain-and-its-contribution-to-transformation
#6
Yongxiu Yao, Deepali Vasoya, Lydia Kgosana, Lorraine Smith, Yulong Gao, Xiaomei Wang, Michael Watson, Venugopal Nair
The v-rel oncoprotein encoded by reticuloendotheliosis virus T strain (Rev-T) is a member of the rel/NF-κB family of transcription factors capable of transformation of primary chicken spleen and bone marrow cells. Rapid transformation of avian haematopoietic cells by v-rel occurs through a process of deregulation of multiple protein-encoding genes through its direct effect on their promoters. More recently, upregulation of oncogenic miR-155 and its precursor pre-miR-155 were demonstrated in Rev-T-infected chicken embryo fibroblast cultures as well as Rev-T-induced B-cell lymphomas...
January 22, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28107482/a-circulating-microrna-signature-predicts-age-based-development-of-lymphoma
#7
Afshin Beheshti, Charles Vanderburg, J Tyson McDonald, Charusheila Ramkumar, Tatenda Kadungure, Hong Zhang, Ronald B Gartenhaus, Andrew M Evens
Extensive epidemiological data have demonstrated an exponential rise in the incidence of non-Hodgkin lymphoma (NHL) that is associated with increasing age. The molecular etiology of this remains largely unknown, which impacts the effectiveness of treatment for patients. We proposed that age-dependent circulating microRNA (miRNA) signatures in the host influence diffuse large B cell lymphoma (DLBCL) development. Our objective was to examine tumor development in an age-based DLBCL system using an inventive systems biology approach...
2017: PloS One
https://www.readbyqxmd.com/read/28101165/functions-of-microrna-143-in-the-apoptosis-invasion-and-migration-of-nasopharyngeal-carcinoma
#8
Jin-Hui Chen, Rui Yang, Wei Zhang, Yong-Ping Wang
Nasopharyngeal carcinoma (NPC) is a common cancer characterized by poor prognosis in areas of Southern China where it is endemic. microRNAs (miRNAs) are a class of naturally occurring small noncoding RNAs, some of which contribute to the initiation and development of cancer. The current study was designed to examine the expression level of miR-143 in NPC tissues. The potential functional targets of miR-143 involved in tumor apoptosis, invasion and migration were also investigated. Reverse transcription-quantitative polymerase chain reaction was used to evaluate the expression levels of miR-143 in clinical NPC specimens...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28057912/mir-340-inhibits-proliferation-and-induces-apoptosis-in-gastric-cancer-cell-line-sgc-7901-possibly-via-the-akt-pathway
#9
Jinzhong Yu, Ruijie Wang, Jianshe Chen, Jinfeng Wu, Zhongqin Dang, Qinsheng Zhang, Bo Li
BACKGROUND Gastric cancer is among the most common types of cancer, with high morbidity and mortality. MicroRNAs (miRNAs) play vital roles in the tumorigenesis and biology of gastric cancer. This study aimed to reveal the role of miR-340 in gastric cancer cell proliferation and apoptosis and to elucidate the potential mechanisms. MATERIAL AND METHODS Human gastric cancer cells SGC-7901 were used in this study for cell transfection with miR-340 mimic or inhibitor. After transfection, cell viability, proliferation, and apoptosis were examined by MTT, BrdU, and flow cytometry assays, respectively...
January 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28053821/microrna-181c-exacerbates-brain-injury-in-acute-ischemic-stroke
#10
Qingfeng Ma, Haiping Zhao, Zhen Tao, Rongliang Wang, Ping Liu, Ziping Han, Shubei Ma, Yumin Luo, Jianping Jia
MicroRNA-181 (miR-181) is highly expressed in the brain, and downregulated in miRNA expression profiles of acute ischemic stroke patients. However, the roles of miR-181c in stroke are not known. The clinical relevance of miR-181c in acute stroke patients was evaluated by real-time PCR and correlation analyses. Proliferation and apoptosis of BV2 microglial cells and Neuro-2a cells cultured separately or together under oxidative stress or inflammation were assessed with the Cell Counting Kit-8 and by flow cytometry, respectively...
December 2016: Aging and Disease
https://www.readbyqxmd.com/read/28031239/micrornas-142-3p-mir-155-and-mir-203-are-deregulated-in-gastric-malt-lymphomas-compared-to-chronic-gastritis
#11
Concepción Fernández, Beatriz Bellosillo, Mariana Ferraro, Agustín Seoane, Blanca Sánchez-González, Silvia Pairet, Aina Pons, Luis Barranco, María Carmen Vela, Eva Gimeno, Lluís Colomo, Carles Besses, Alfons Navarro, Antonio Salar
BACKGROUND: Over the last years, our knowledge on pathogenesis of gastric MALT lymphoma has greatly improved, but its morphological diagnosis is still hampered by overlapping histological features with advanced chronic gastritis. MicroRNAs are deregulated in lymphomas, but their role and usefulness in gastric MALT lymphoma has not been extensively investigated. MATERIALS AND METHODS: We analyzed the expression of 384 miRNAs using TaqMan microRNA assay in a training series of 10 gastric MALT lymphomas, 3 chronic gastritis and 2 reactive lymph nodes...
2, 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28012196/microrna-184-modulates-human-central-nervous-system-lymphoma-cells-growth-and-invasion-by-targeting-iaspp
#12
Xiao-Gong Liang, Wen-Tong Meng, Lian-Jie Hu, Lin Li, Hongyun Xing, Gan Xie, An-Qiong Wang, Yong-Qian Jia
Central nervous system lymphoma (CNSL) remains a diagnostical and therapeutical challenge. MiRNAs post-transcriptionally regulate expression of targeted mRNAs through binding to their 3' UTR to inhibit their translation or promote their degradation. Oncoprotein inhibitory member of the ASPP family (iASPP), a key inhibitor of tumor suppressor p53, has been reported to play oncogenic role in cancers. Our present study was aimed to determine whether the miR-184/iASPP axis is involved in the proliferation and invasion of CNSL...
December 24, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27999330/dysregulated-microrna-expression-profiles-and-potential-cellular-circulating-and-polymorphic-biomarkers-in-non-hodgkin-lymphoma
#13
REVIEW
Gabrielle Bradshaw, Heidi G Sutherland, Larisa M Haupt, Lyn R Griffiths
A large number of studies have focused on identifying molecular biomarkers, including microRNAs (miRNAs) to aid in the diagnosis and prognosis of the most common subtypes of non-Hodgkin lymphoma (NHL), Diffuse Large B-cell Lymphoma and Follicular Lymphoma. NHL is difficult to diagnose and treat with many cases becoming resistant to chemotherapy, hence the need to identify improved biomarkers to aid in both diagnosis and treatment modalities. This review summarises more recent research on the dysregulated miRNA expression profiles found in NHL, as well as the regulatory role and biomarker potential of cellular and circulating miRNAs found in tissue and serum, respectively...
December 17, 2016: Genes
https://www.readbyqxmd.com/read/27991481/circulating-microrna-21-microrna-23a-and-microrna-125b-as-biomarkers-for-diagnosis-and-prognosis-of-burkitt-lymphoma-in-children
#14
Jun Li, Xiao-Wen Zhai, Hong-Sheng Wang, Xiao-Wen Qian, Hui Miao, Xiao-Hua Zhu
BACKGROUND The aim of this study was to investigate the diagnostic and prognostic value of microRNA (miRNA)-21, miRNA-23a, and miRNA-125b in Burkitt lymphoma (BL) in children. MATERIAL AND METHODS We recruited 41 children with BL for the case group, 56 children with lymph node inflammation for the positive control group, and 60 healthy children for the negative control group. Real-time fluorescent quantitative polymerase chain reaction (RT-qPCR) was conducted for detection of circulating miRNA-21, miRNA-23a, and miRNA-125b...
December 19, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27935859/histone-deacetylase-inhibitors-inhibit-metastasis-by-restoring-a-tumor-suppressive-microrna-150-in-advanced-cutaneous-t-cell-lymphoma
#15
Fumito Abe, Akihiro Kitadate, Sho Ikeda, Junsuke Yamashita, Hiroki Nakanishi, Naoto Takahashi, Chikara Asaka, Kazuaki Teshima, Tomomitsu Miyagaki, Makoto Sugaya, Hiroyuki Tagawa
Tumor suppressive microRNA (miR)-150 inhibits metastasis by combining with the C-C chemokine receptor 6 (CCR6) "seed sequence" mRNA of the 3'-untranslated region (3'-UTR) in advanced cutaneous T-cell lymphoma (CTCL). Because the histone deacetylase inhibitor (HDACI) vorinostat showed excellent outcomes for treating advanced CTCL, HDACIs may reduce the metastasis of CTCL by targeting miR-150 and/ or CCR6. To examine whether these candidate molecules are essential HDACI targets in advanced CTCL, we used the My-La, HH, and HUT78 CTCL cell lines for functional analysis because we previously demonstrated that their xenografts in NOD/Shi-scid IL-2γnul mice (CTCL mice) induced multiple metastases...
January 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/27907195/novel-aryl-hydrocarbon-receptor-agonist-suppresses-migration-and-invasion-of-breast-cancer-cells
#16
Hamza Hanieh, Omar Mohafez, Villianur Ibrahim Hairul-Islam, Abdullah Alzahrani, Mohammad Bani Ismail, Krishnaraj Thirugnanasambantham
BACKGROUND: Despite the remarkable progress to fight against breast cancer, metastasis remains the dominant cause of treatment failure and recurrence. Therefore, control of invasiveness potential of breast cancer cells is crucial. Accumulating evidences suggest Aryl hydrocarbon receptor (Ahr), a helix-loop-helix transcription factor, as a promising target to control migration and invasion in breast cancer cells. Thus, an Ahr-based exploration was performed to identify a new Ahr agonist with inhibitory potentials on cancer cell motility...
2016: PloS One
https://www.readbyqxmd.com/read/27882350/plasma-vesicle-mirnas-for-therapy-response-monitoring-in-hodgkin-lymphoma-patients
#17
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/27874957/restoration-of-microrna-373-suppresses-growth-of-human-t-cell-lymphoma-cells-by-repressing-ccnd1
#18
Y-Y Tian, C-M Jia, Y Li, Y Wang, L Jiang, A-C Liu
OBJECTIVE: Adult T cell lymphoma is a highly aggressive T-cell malignancy. This study was designed to explore the expression and functional significance of microRNA (miR)-373 in T cell lymphoma. PATIENTS AND METHODS: We analyzed the levels of CCND1 and miR-373 in T cell lymphoma tissue and the relationship of miR-373 levels with patients' prognosis. We then overexpressed miR-373 by miRNA mimics transfection and inhibited miR-373 by miRNA antisense transfection in T cell lymphoma cells...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27861461/microrna-455-3p-inhibits-tumor-cell-proliferation-and-induces-apoptosis-in-hct116-human-colon-cancer-cells
#19
Jiantao Zheng, Zhenlv Lin, Lin Zhang, Hui Chen
BACKGROUND MicroRNAs have been reported to play significant roles in pathogenesis of colorectal cancer (CRC). In the present study, we aimed to investigate the functional role of microRNA-455-3p (miR-455-3p) in CRC, as well as its underlying mechanisms. MATERIAL AND METHODS Human colon cancer cell line HCT116 cells were transfected with miR-455-3p mimics, inhibitors, or controls. After transfection, the effects of miR-455-3p mimics or inhibitors on cell proliferation were analyzed by 3-(4, 5-dimethyl-2- thiazolyl)-2, 5-diphenyl -2-H-tetrazolium bromide (MTT) assay and BrdU assay, and the effects of miR-455-3p mimics or inhibitors on cell apoptosis were determined...
November 18, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27835864/senescent-stromal-cell-induced-divergence-and-therapeutic-resistance-in-t-cell-acute-lymphoblastic-leukemia-lymphoma
#20
David M Habiel, Nicolas Krepostman, Michael Lilly, Karen Cavassani, Ana Lucia Coelho, Takehiko Shibata, Kojo Elenitoba-Johnson, Cory M Hogaboam
T cell Acute Lymphoblastic Leukemia/Lymphoma (T-ALL/LBL) is a precursor T cell leukemia/lymphoma that represents approximately 15% of all childhood and 25% of adult acute lymphoblastic leukemia. Although a high cure rate is observed in children, therapy resistance is often observed in adults and mechanisms leading to this resistance remain elusive. Utilizing public gene expression datasets, a fibrotic signature was detected in T-LBL but not T-ALL biopsies. Further, using a T-ALL cell line, CCRF-CEM (CEM) cells, we show that CEM cells induce pulmonary remodeling in immunocompromised mice, suggesting potential interaction between these cells and lung fibroblasts...
November 7, 2016: Oncotarget
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