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Lymphoma AND miRNA

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https://www.readbyqxmd.com/read/29158064/mirna-223-functions-as-both-prognostic-biomarker-and-tumor-suppressor-in-mantle-cell-lymphoma-through-targeting-sox11
#1
REVIEW
Keshu Zhou, Xiaoyan Feng, Yanying Wang, Yanyan Liu, Long Tian, Wenli Zuo, Shuhua Yi, Xudong Wei, Yongping Song, Lugui Qiu
Mantle cell lymphoma (MCL) is an aggressive lymphoid malignance characterized by cytogenetic aberration of t(11;14), although it is not the prerequisite. Until now, the pathogenesis of MCL remains not fully interpreted. Our current study showed that miR-223 was down-regulated in purified CD19+ lymphocytes from MCL patients (n=21) compared with that of normal donors (n=20). In addition, patients with high-risk mantle international prognostic index, elevated LDH, performance status>2 were more likely to have much lower miR-223 expression...
November 17, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/29156774/micrornas-as-predictors-for-cns-relapse-of-systemic-diffuse-large-b-cell-lymphoma
#2
Nir Pillar, Osnat Bairey, Neta Goldschmidt, Yakov Fellig, Yevgenia Rosenblat, Itchak Shehtman, Danielle Haguel, Pia Raanani, Noam Shomron, Tali Siegal
Systemic diffuse large B-cell lymphoma (DLBCL) is a potentially curable disease using current regimen of immunochemotherapy. Central nervous system (CNS) relapse is a complication that occurs in approximately 5% of DLBCL patients and is associated with a high fatality rate. Early identification of molecular markers for CNS involvement may serve for the highly needed accurate stratification of patients into risk groups regarding CNS relapse. MicroRNAs (miRNAs) are small non-coding RNA molecules that regulate gene expression at the post-transcriptional level and are known to be involved in DLBCL pathophysiology...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156742/prmda-personalized-recommendation-based-mirna-disease-association-prediction
#3
Zhu-Hong You, Luo-Pin Wang, Xing Chen, Shanwen Zhang, Xiao-Fang Li, Gui-Ying Yan, Zheng-Wei Li
Recently, researchers have been increasingly focusing on microRNAs (miRNAs) with accumulating evidence indicating that miRNAs serve as a vital role in various biological processes and dysfunctions of miRNAs are closely related with human complex diseases. Predicting potential associations between miRNAs and diseases is attached considerable significance in the domains of biology, medicine, and bioinformatics. In this study, we developed a computational model of Personalized Recommendation-based MiRNA-Disease Association prediction (PRMDA) to predict potential related miRNA for all diseases by implementing personalized recommendation-based algorithm based on integrated similarity for diseases and miRNAs...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29135973/hdac6-regulates-microrna-27b-that-suppresses-proliferation-promotes-apoptosis-and-target-met-in-diffuse-large-b-cell-lymphoma
#4
Y J Jia, Z B Liu, W G Wang, C B Sun, P Wei, Y L Yang, M J You, B H Yu, X Q Li, X Y Zhou
Diffuse large B-cell lymphoma (DLBCL) is the most common type of non-Hodgkin lymphoma. Histone deacetylase 6 (HDAC6) is frequently altered in DLBCL and inhibition of HDAC6 has potent anti-tumor effects in vitro and in vivo. We profiled miRNAs that altered in the HDAC6 knockdown DLBCL cells with NanoString nCounter assay and identified microRNA-27b (miR-27b) as the most significantly increased miRNA. We validated decreased expression of miR-27b in DLBCL tissues, and we found that low expression of miR-27b was associated with poor overall survival of patients with DLBCL...
September 28, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29132323/integrative-microrna-and-mrna-deep-sequencing-expression-profiling-in-endemic-burkitt-lymphoma
#5
Cliff I Oduor, Yasin Kaymaz, Kiprotich Chelimo, Juliana A Otieno, John Michael Ong'echa, Ann M Moormann, Jeffrey A Bailey
BACKGROUND: Burkitt lymphoma (BL) is characterized by overexpression of the c-myc oncogene, which in the vast majority of cases is a consequence of an IGH/MYC translocation. While myc is the seminal event, BL is a complex amalgam of genetic and epigenetic changes causing dysregulation of both coding and non-coding transcripts. Emerging evidence suggest that abnormal modulation of mRNA transcription via miRNAs might be a significant factor in lymphomagenesis. However, the alterations in these miRNAs and their correlations to their putative mRNA targets have not been extensively studied relative to normal germinal center (GC) B cells...
November 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29131834/plasma-microrna-profiling-exploring-better-biomarkers-for-lymphoma-surveillance
#6
Drirh Khare, Neta Goldschmidt, Aya Bardugo, Devorah Gur-Wahnon, Iddo Z Ben-Dov, Batia Avni
Early detection of relapsed lymphoma improves response and survival. Current tools lack power for detection of early relapse, while being cumbersome and expensive. We searched for sensitive biomarkers that precede clinical relapse, and serve for further studies on therapy response and relapse. We recruited 20 healthy adults, 14 diffuse large B-cell lymphoma (DLBCL) patients and 11 Hodgkin lymphoma (HL) patients at diagnosis. Using small-RNA sequencing we identified in DLBCL patients increased plasma levels of miR-124 and miR-532-5p, and decreased levels of miR-425, miR-141, miR-145, miR-197, miR-345, miR-424, miR-128 and miR-122...
2017: PloS One
https://www.readbyqxmd.com/read/29128636/identification-of-key-micrornas-associated-with-diffuse-large-b-cell-lymphoma-by-analyzing-serum-microrna-expressions
#7
Yuanyuan Meng, Lina Quan, Aichun Liu
PURPOSE: This study aimed to investigate the molecular mechanism underlying diffuse large B-cell lymphoma (DLBCL). METHODS: Serum miRNA expression analysis for the serum samples of patients with DLBCL and those of controls was performed using the Illumina sequencing technology. Differentially expressed miRNAs (DEMs) were identified on the basis of the sequencing data. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses and protein-protein interaction (PPI) network construction for the target genes of DEMs were also conducted...
November 8, 2017: Gene
https://www.readbyqxmd.com/read/29115608/microrna%C3%A2-27a-promotes-tumorigenesis-via-targeting-akt-in-triple-negative-breast-cancer
#8
Jing Wu, Zhihui Sun, Huijie Sun, Yanhua Li
Altered microRNA (miRNA/miR) expression regulates tumor development and progression in triple‑negative breast cancer (TNBC). The present study examined the effect of miR‑27a on proliferation, migration and invasion of TNBC cells in vitro and in vivo. An MTT assay was performed to examine the proliferation of MDA‑MB‑231 and MDA‑MB‑468 breast cancer cells with either overexpression of miR‑27a or downregulation of miR‑27a, in the presence or absence of radiation. The migratory and invasive abilities of MDA‑MB‑231 and MDA‑MB‑468 breast cancer cells were assessed by Transwell migration and Matrigel invasion assays...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29100606/bh3-only-protein-bim-an-emerging-target-in-chemotherapy
#9
REVIEW
Shatrunajay Shukla, Sugandh Saxena, Brijesh Kumar Singh, Poonam Kakkar
BH3-only proteins constitute major proportion of pro-apoptotic members of B-cell lymphoma 2 (Bcl-2) family of apoptotic regulatory proteins and participate in embryonic development, tissue homeostasis and immunity. Absence of BH3-only proteins contributes to autoimmune disorders and tumorigenesis. Bim (Bcl-2 Interacting Mediator of cell death), most important member of BH3-only proteins, shares a BH3-only domain (9-16 aa) among 4 domains (BH1-BH4) of Bcl-2 family proteins and highly pro-apoptotic in nature...
December 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/29097278/hamda-hybrid-approach-for-mirna-disease-association-prediction
#10
Xing Chen, Ya-Wei Niu, Guang-Hui Wang, Gui-Ying Yan
For decades, enormous experimental researches have collectively indicated that microRNA (miRNA) could play indispensable roles in many critical biological processes and thus also the pathogenesis of human complex diseases. Whereas the resource and time cost required in traditional biology experiments are expensive, more and more attentions have been paid to the development of effective and feasible computational methods for predicting potential associations between disease and miRNA. In this study, we developed a computational model of Hybrid Approach for MiRNA-Disease Association prediction (HAMDA), which involved the hybrid graph-based recommendation algorithm, to reveal novel miRNA-disease associations by integrating experimentally verified miRNA-disease associations, disease semantic similarity, miRNA functional similarity, and Gaussian interaction profile kernel similarity into a recommendation algorithm...
October 30, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/29053164/narrmda-negative-aware-and-rating-based-recommendation-algorithm-for-mirna-disease-association-prediction
#11
Lihong Peng, Yeqing Chen, Ning Ma, Xing Chen
An increasing amount of evidence indicates that microRNAs (miRNAs) are closely related to many important biological processes and play a significant role in various human diseases. More and more researchers have begun to seek effective methods to predict potential miRNA-disease associations. However, reliable computational methods to predict potential disease-related miRNAs are lacking. In this study, we developed a new miRNA-disease association prediction model called Negative-Aware and rating-based Recommendation algorithm for miRNA-Disease Association prediction (NARRMDA) based on the known miRNA-disease associations in the HMDD database, miRNA functional similarity, disease semantic similarity and Gaussian interaction profile kernel similarity...
November 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/29043207/mantle-cell-lymphoma-involvement-of-nodal-and-extranodal-sites-in-the-head-and-neck-with-multifocal-oral-lesions
#12
Marcelo Marcucci, Gilberto Marcucci, Mirna Scalon Cordeiro, Jorge Esquiche León, Juliane Piragine Araujo, Jefferson Xavier de Oliveira, Karina Cecília Panelli Santos
Mantle cell lymphoma (MCL) is a malignant B-cell neoplasm, which comprises monomorphic and small- to medium-sized mantle zone-derived lymphoid cells. It is characterized by chromosomal translocation t(11;14)(q13;q32) and CCND1 truncation, resulting in cell cycle deregulation. It is an aggressive type of non-Hodgkin lymphoma with a propensity to present with extranodal involvement. This study shows the case of an 80-year-old Caucasian male who complained of a 2-month progressive swelling on the right side of his face...
July 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28973148/a-constitutive-bcl2-down-regulation-aggravates-the-phenotype-of-pkd1-mutant-induced-polycystic-kidney-disease
#13
Laurence Duplomb, Nathalie Droin, Olivier Bouchot, Christel Robinet Thauvin, Ange-Line Bruel, Julien Thevenon, Patrick Callier, Guillaume Meurice, Noémie Pata-Merci, Romaric Loffroy, David Vandroux, Romain Da Costa, Virginie Carmignac, Eric Solary, Laurence Faivre
The main identified function of BCL2 protein is to prevent cell death by apoptosis. Mice knock-out for Bcl2 demonstrate growth retardation, severe polycystic kidney disease (PKD), gray hair and lymphopenia, and die prematurely after birth. Here, we report a 40-year-old male referred to for abdominal and thoracic aortic dissection with associated aortic root aneurysm, PKD, lymphocytopenia with a history of T cell lymphoblastic lymphoma, white hair since the age of 20, and learning difficulties. PKD, which was also detected in the father and sister, was related to an inherited PKD1 mutation...
September 11, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28953617/effects-of-microrna-21-on-apoptosis-by-regulating-the-expression-of-pten-in-diffuse-large-b-cell-lymphoma
#14
Jia Song, Qing Shao, Chunhong Li, Hui Liu, Jing Li, Yihao Wang, Wenjing Song, Lijuan Li, Guojin Wang, Zonghong Shao, Rong Fu
Diffuse large B-cell lymphoma (DLBCL) is an aggressive malignancy and the most common subtype of non-Hodgkin lymphoma in China. However, many cases still remain biologically and clinically heterogeneous, indicating that the DLBCL mechanism remains unclear. MicroRNAs (miRNAs) are critically responsible for lymphomagenesis. We found that plasma miR-21 level was significantly higher in B-cell lymphoma. However, the exact contribution of miR-21 in DLBCL remains unknown.To determine the function and mechanism of miR-21 in DLBCL, miR-21 and phosphatase and tensin homolog (PTEN) expressions were examined through real-time PCR and immunohistochemical methods...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28944882/evaluation-of-apoptosis-induced-by-exposure-to-antineoplastic-drugs-in-peripheral-blood-lymphocytes-of-nurses
#15
Heng Liao, Lijie Bi, Jun Wei, Xin Song
Cytostatic antineoplastic drugs are considered carcinogenic and mutagenic risk factors for health workers who are occupationally exposed to them; however, the molecular mechanisms underlying these effects remain to be elucidated. Therefore, the present study aimed to investigate the underlying mechanisms of antineoplastic drugs‑induced apoptosis of peripheral blood lymphocytes (PBLs) obtained from oncology nurses handling antineoplastic drugs. A microRNA (miRNA/miR) polymerase chain reaction (PCR) array was performed to analyze the expression levels of miRNAs in the PBLs from 3 trained nurses occupationally exposed to antineoplastic drugs...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28928469/activation-of-mir-34a-5p-sirt1-p66shc-pathway-contributes-to-doxorubicin-induced-cardiotoxicity
#16
Jie-Ning Zhu, Yong-Heng Fu, Zhi-Qin Hu, Wen-Yu Li, Chun-Mei Tang, Hong-Wen Fei, Hui Yang, Qiu-Xiong Lin, De-Ming Gou, Shu-Lin Wu, Zhi-Xin Shan
The molecular mechanisms underlying anthracyclines-induced cardiotoxicity have not been well elucidated. MiRNAs were revealed dysregulated in the myocardium and plasma of rats received Dox treatment. MicroRNA-34a-5p (miR-34a-5p) was verified increased in the myocardium and plasma of Dox-treated rats, but was reversed in rats received Dox plus DEX treatments. Human miR-34a-5p was also observed increased in the plasma of patients with diffuse large B-cell lymphoma after 9- and 16-week epirubicin therapy. Up-regulation of miR-34a-5p was observed in Dox-induced rat cardiomyocyte H9c2 cells...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28922425/hypoxia-inducible-factor-1-alpha-as-a-therapeutic-target-for-primary-effusion-lymphoma
#17
Prabha Shrestha, David A Davis, Ravindra P Veeranna, Robert F Carey, Coralie Viollet, Robert Yarchoan
Primary effusion lymphoma (PEL) is an aggressive B-cell lymphoma with poor prognosis caused by Kaposi's sarcoma-associated herpesvirus (KSHV). Previous studies have revealed that HIF-1α, which mediates much of the cellular response to hypoxia, plays an important role in life cycle of KSHV. KSHV infection promotes HIF-1α activity, and several KSHV genes are in turn activated by HIF-1α. In this study, we investigated the effects of knocking down HIF-1α in PELs. We observed that HIF-1α knockdown in each of two PEL lines leads to a reduction in both aerobic and anaerobic glycolysis as well as lipid biogenesis, indicating that HIF-1α is necessary for maintaining a metabolic state optimal for growth of PEL...
September 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28918474/induction-of-immunogenic-cell-death-in-lymphoma-cells-by-wharton-s-jelly-mesenchymal-stem-cell-conditioned-medium
#18
Daniel Hao Lin, Arijit Biswas, Mahesh Choolani, Chui-Yee Fong, Ariff Bongso
Strategies that induce immunogenic cell death (ICD) or downregulate CD47 or PD-L1 expression have resulted in successful therapeutic options for tumor eradication. Several groups have reported the tumoricidal effects of human umbilical cord Wharton's jelly stem cells (hWJSCs) or its conditioned medium (hWJSC-CM) on certain cancers but the mechanisms have not been elucidated. Since hWJSCs possess immunomodulatory properties, we investigated whether one of the tumoricidal mechanisms was via ICD. We first concentrated hWJSC-CM into a 3 kDa concentrate and then exposed various concentrations of this concentrate to human lymphoma cells to find out which concentration had the greatest tumoricidal effect...
September 16, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28895406/identification-of-potential-key-genes-associated-with-diffuse-large-b-cell-lymphoma-based-on-microarray-gene-expression-profiling
#19
X Luo, F Shi, H Qiu, Y Tong, X Gao
The study aimed to screen potential key genes, and their targeted miRNAs and transcription factors (TFs) that were related to diffuse large B-cell lymphoma (DLBCL), and explore potential therapeutic targets for the progression of DLBCL. Dataset GSE56315 extracted from human tonsils was downloaded from Gene Expression Omnibus. Limma package was used to identify differential expression genes (DEG) between DLBCL and normal human tonsils samples, and the function and pathway enrichment analyses were performed. Then, functional interaction (FI) networks analyses of DEGs were implemented, and modules were extracted...
September 12, 2017: Neoplasma
https://www.readbyqxmd.com/read/28881594/the-mir-106a-363-xpcl1-mirna-cluster-induces-murine-t-cell-lymphoma-despite-transcriptional-activation-of-the-p27-kip1-cell-cycle-inhibitor
#20
Daniel A Kuppers, Thomas M Schmitt, Harry C Hwang, Lavanya Samraj, Bruce E Clurman, Matthew L Fero
The miR-106a~363 cluster encodes 6 miRNAs on the X-chromosome which are abundant in blood cells and overexpressed in a variety of malignancies. The constituent miRNA of miR-106a~363 have functional activities in vitro that are predicted to be both oncogenic and tumor suppressive, yet little is known about their physiological functions in vivo. Mature miR-106a~363 (Mirc2) miRNAs are processed from an intragenic, non-protein encoding gene referred to as Xpcl1 (or Kis2), situated at an X-chromosomal locus frequently targeted by retroviruses in murine lymphomas...
August 1, 2017: Oncotarget
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