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Atsushi Kiba, Kouji Banno, Megumi Yanokura, Mari Asada, Yusuke Nakayama, Daisuke Aoki, Tatsuya Watanabe
AIM: Micro ribonucleic acids (miRNAs) play an important pathological role in endometriosis. Leuprolide acetate, an analog of gonadotropin-releasing hormone, is widely used to treat endometriosis; however, the molecular mechanisms involved in endometriotic tissue regression remain unclear. We performed miRNA expression profiling of clinical ovarian endometrioma to obtain insight into the effects of leuprolide acetate treatment. METHODS: We obtained clinical samples from nine normal eutopic endometrium, eight ovarian endometriotic, and 12 leuprolide acetate-treated endometriotic tissues...
October 6, 2016: Journal of Obstetrics and Gynaecology Research
Joanna Trelinska, Wojciech Fendler, Iwona Dachowska, Katarzyna Kotulska, Sergiusz Jozwiak, Karolina Antosik, Piotr Gnys, Maciej Borowiec, Wojciech Mlynarski
BACKGROUND: Tuberous sclerosis (TSC) is a monogenic disease resulting from defects of the TSC1 or TSC2 genes, which encode the proteins forming hamartin-tuberin tumor suppressor complex, the mammalian target of rapamycin complex (mTOR). The mTOR pathway is constitutively activated in response to tuberin or hamartin defects. The mTOR pathway is also regulated by a multitude of epigenetic mechanisms, one of which is regulation by microRNA (miRNA) inhibition. This leads us to hypothesize that organ-level abnormalities of miRNA expression patterns are widespread in TSC...
September 29, 2016: Orphanet Journal of Rare Diseases
Marta Cosín-Tomás, Anna Antonell, Albert Lladó, Daniel Alcolea, Juan Fortea, Mario Ezquerra, Albert Lleó, Maria José Martí, Mercè Pallàs, Raquel Sanchez-Valle, José Luís Molinuevo, Coral Sanfeliu, Perla Kaliman
Plasma microRNAs (miRNAs) have been proposed as potential biomarkers in Alzheimer's disease (AD). Here, we explored their use as early sensors of the preclinical phase of the disease, when brain pathology is being developed and no cognitive loss is detected. For this purpose, we analyzed a set of ten mature plasma miRNAs in symptomatic patients with AD from a cohort that also included healthy controls (HC) and patients with preclinical Alzheimer's disease (PAD) (cohort 1). Plasmas from subjects with Parkinson's disease (PD) were used to control for disease specificity...
September 8, 2016: Molecular Neurobiology
Afsar Raza Naqvi, Jezrom B Fordham, Balaji Ganesh, Salvador Nares
Antigen uptake, processing and presentation by antigen presenting cells (APCs) are tightly coupled processes which consequently lead to the activation of innate and adaptive immune responses. However, the regulatory role of microRNA (miRNAs) in these critical pathways is poorly understood. In this study, we show that overexpression of miR-24, miR-30b and miR-142-3p attenuates uptake and processing of soluble antigen ovalbumin (Ova) in primary human macrophages and dendritic cells. MiRNA mimic transfected APCs exhibit defects in antigen presentation (Ova and CMV antigen) to CD4+ T-cells leading to reduced cell proliferation...
2016: Scientific Reports
Katherine A Sanders, Miles C Benton, Rod A Lea, Vicki E Maltby, Susan Agland, Nathan Griffin, Rodney J Scott, Lotti Tajouri, Jeannette Lechner-Scott
BACKGROUND: Immunoactivation is less evident in secondary progressive MS (SPMS) compared to relapsing-remitting disease. MicroRNA (miRNA) expression is integral to the regulation of gene expression; determining their impact on immune-related cell functions, especially CD4+ T cells, during disease progression will advance our understanding of MS pathophysiology. This study aimed to compare miRNA profiles of CD4+ T cells from SPMS patients to healthy controls (HC) using whole miRNA transcriptome next-generation sequencing (NGS)...
2016: Clinical Epigenetics
Xiaonan Qiu, Haixia Zhu, Sang Liu, Guoquan Tao, Jing Jin, Haiyan Chu, Meilin Wang, Na Tong, Weida Gong, Qinghong Zhao, Fulin Qiang, Zhengdong Zhang
BACKGROUND: In our previous study, we demonstrated that four microRNAs (miRNAs) (miR-26a, miR-142-3p, miR-148a, and miR-195) which were down-regulated in both plasma and tumor tissues were confirmed to be promising non-invasive diagnostic biomarkers for gastric cancer (GC). METHODS: We used the quantitative reverse transcription polymerase chain reaction (qRT-PCR) to assess the expression levels of the four miRNAs from paraffin-embedded surgical specimens of GC patients...
August 16, 2016: Journal of Gastroenterology and Hepatology
Dong Pan, Yarong Du, Zhenxin Ren, Yaxiong Chen, Xiaoman Li, Jufang Wang, Burong Hu
Radiation-induced genomic instability plays a vital role in carcinogenesis. Bod1 is required for proper chromosome biorientation, and Bod1 depletion increases premature chromatid separation. MiR-142-3p influences cell cycle progression and inhibits proliferation and invasion in cervical carcinoma cells. We found that radiation induced premature chromatid separation and altered miR-142-3p and Bod1 expression in 786-O and A549 cells. Overexpression of miR-142-3p increased premature chromatid separation and G2/M cell cycle arrest in 786-O cells by suppressing Bod1 expression...
August 5, 2016: Oncotarget
Sepideh Zununi Vahed, Yadollah Omidi, Mohammadreza Ardalan, Nasser Samadi
OBJECTIVE: microRNAs (miRNAs) are endogenous gene expression regulators that are involved in renal function and physiopathology, making them potential biomarkers in the realm of transplantation. Here, we aimed to evaluate urinary miRNA expression levels and assess their possible values in the prospective evaluation of renal allograft function. DESIGN AND METHODS: The expression levels of four miRNAs involved in renal fibrosis were quantified in urine cell pellets of 47 kidney recipients (with stable allograft function (SGF) and biopsy proven interstitial fibrosis and tubular atrophy; IFTA) and 15 healthy controls by real-time quantitative-PCR (RT-qPCR)...
August 10, 2016: Clinical Biochemistry
Afsar Raza Naqvi, Jezrom B Fordham, Salvador Nares
Phagocytosis commences with particle internalization and culminates with the activation of innate and adaptive immune responses. However, the role of miRNAs in phagocytosis remains largely unknown. In this study, we examined the role of miR-24, miR-30b and miR-142-3p in Ab Fc receptor (FcR)-mediated phagocytosis by macrophages (MΦ) and dendritic cells (DC). The expression of these miRNAs was reduced following phagocytosis of both IgG-opsonized beads and Escherichia coli, indicating their regulatory role in the process...
October 2016: Innate Immunity
Xiuqin Wang, Yanqing Guo, Chunyan Wang, Hong Yu, Xiuxiang Yu, Hongbo Yu
Osteoarthritis (OA) is a degenerative joint disease characterized by articular cartilage degradation and joint inflammation in which microRNAs are significantly involved. Previous studies have reported that miR-142-3p is a novel mediator of inflammatory signaling pathways, but whether miR-142-3p regulates OA remains unknown. In this study, we aimed to investigate the potential role of miR-142-3p in OA and the underlying molecular mechanism. We showed that miR-142-3p was significantly reduced in the articular cartilage tissues from experimental OA mice...
October 2016: Inflammation
Gerhard Schmalz, Simin Li, Ralph Burkhardt, Sven Rinke, Felix Krause, Rainer Haak, Dirk Ziebolz
The aim of this review is to discuss current findings regarding the roles of miRNAs in periodontal diseases and the potential use of saliva as a diagnostic medium for corresponding miRNA investigations. For periodontal disease, investigations have been restricted to tissue samples and five miRNAs, that is, miR-142-3p, miR-146a, miR-155, miR-203, and miR-223, were repeatedly validated in vivo and in vitro by different validation methods. Particularly noticeable are the small sample sizes, different internal controls, and different case definitions of periodontitis in in vivo studies...
2016: BioMed Research International
Sandra Mara Burin, Maria Gabriela Berzoti-Coelho, Juçara Gastaldi Cominal, Luciana Ambrosio, Maria Regina Torqueti, Suely Vilela Sampaio, Fabíola Attié de Castro
Anti-apoptotic genes and apoptomiRs deregulated expression contribute to apoptosis resistance in chronic myeloid leukemia (CML) Bcr-Abl(+) cells. Here, the L-amino acid oxidase from Calloselasma rhodostoma (CR-LAAO) venom altered the apoptotic machinery regulation by modulating the expression of the miR-145, miR-26a, miR-142-3p, miR-21, miR-130a, and miR-146a, and of the apoptosis-related proteins Bid, Bim, Bcl-2, Ciap-2, c-Flip, and Mcl-1 in Bcr-Abl(+) cells. CR-LAAO is a potential tool to instigate apoptomiRs regulation that contributes to drive CML therapy...
September 15, 2016: Toxicon: Official Journal of the International Society on Toxinology
Ming Zhang, Dequan Liu, Wenhui Li, Xiaoli Wu, Chang'e Gao, Xiangnan Li
PURPOSE: We aimed to screen possible biomarkers associated with the molecular mechanism of breast cancer using microRNA (miRNA) microarray. METHODS: The miRNAs expression profile GSE45666 was downloaded from Gene Expression Omnibus database, which included 101 genechips from breast tumor samples and 15 from adjacent breast normal tissue samples. Limma package in R language was used to screen and identify differentially expressed miRNAs (DE-miRNAs) which were classified as up-regulated and down-regulated groups...
June 30, 2016: Archives of Gynecology and Obstetrics
Tanyu Hu, Krung Phiwpan, Jitao Guo, Wei Zhang, Jie Guo, Zhongmei Zhang, Mangge Zou, Xuejie Zhang, Jianhua Zhang, Xuyu Zhou
Wnt/β-catenin signaling pathway plays essential roles in mammalian development and tissue homeostasis. MicroRNAs (miRNAs) are a class of regulators involved in modulating this pathway. In this study, we screened miRNAs regulating Wnt/β-catenin signaling by using a TopFlash based luciferase reporter. Surprisingly, we found that miR-142 inhibited Wnt/β-catenin signaling, which was inconsistent with a recent study showing that miR-142-3p targeted Adenomatous Polyposis Coli (APC) to upregulate Wnt/β-catenin signaling...
2016: PloS One
Audrey Villard, Lucien Marchand, Charles Thivolet, Sophie Rome
Type 2 diabetes mellitus (T2DM) is the most common metabolic disorder worldwide. Because of population aging and increasing trends toward obesity and sedentary lifestyles, the number of affected individuals is increasing at worrisome rates. While both environmental and genetic factors are known to contribute to the development of T2DM, continuous research is needed to identify specific biomarkers that could aid both in prevention of the disease and development of newer therapeutic options. Circulating miRNAs are considered as potential biomarkers because they are stable and resistant to degradation by blood RNAses and are modified under different pathophysiological conditions...
November 2015: Journal of Molecular Biomarkers & Diagnosis
Jin Zhu, Yuehua Zhang, Weichen Zhang, Wei Zhang, Linni Fan, Lu Wang, Yixiong Liu, Shasha Liu, Ying Guo, Yingmei Wang, Jun Yi, Qingguo Yan, Zhe Wang, Gaosheng Huang
BACKGROUND: MicroRNAs have the potential as diagnostic biomarkers and therapeutic targets in autoimmune diseases. However, very limited studies have evaluated the expression of microRNA profile in thyroid gland related to Hashimoto's thyroiditis (HT). METHODS: MicroRNA microarray expression profiling was performed and validated by quantitative RT-PCR. The expression pattern of miR-142-5p was detected using locked nucleic acid-in situ hybridization. The target gene was predicted and validated using miRNA targets prediction database, gene expression analysis, quantitative RT-PCR, western blot, and luciferase assay...
2016: Journal of Translational Medicine
Julia Alles, Jennifer Menegatti, Natalie Motsch, Martin Hart, Norbert Eichner, Richard Reinhardt, Gunter Meister, Friedrich A Grässer
The aim of this work was to establish the microRNA profile of SNK6 and SNT16, two Epstein-Barr virus (EBV)-infected cell lines derived from nasal NK/T-cell lymphoma (NKTL). The oncogenic EBV is strongly associated with the pathogenesis of nasal and extranodal NK/T-cell lymphoma and expresses 44 mature microRNAs and two noncoding EBV-encoded RNAs (EBERs). miRNAs are 19-25nt noncoding RNAs that affect host and viral gene expression post-transcriptionally. Deregulated miRNA patterns are frequently linked to a variety of human cancers including lymphomas...
April 2016: FEBS Open Bio
Tania Maes, Francisco Avila Cobos, Florence Schleich, Valentina Sorbello, Monique Henket, Katleen De Preter, Ken R Bracke, Griet Conickx, Claire Mesnil, Jo Vandesompele, Lies Lahousse, Fabrice Bureau, Pieter Mestdagh, Guy F Joos, Fabio L M Ricciardolo, Guy G Brusselle, Renaud Louis
BACKGROUND: Asthma is classified according to severity and inflammatory phenotype and is likely to be distinguished by specific microRNA (miRNA) expression profiles. OBJECTIVE: We sought to associate miRNA expression in sputum supernatants with the inflammatory cell profile and disease severity in asthmatic patients. METHODS: We investigated miRNA expression in sputum supernatants of 10 healthy subjects, 17 patients with mild-to-moderate asthma, and 9 patients with severe asthma using high-throughput, stem-loop, reverse transcriptase quantitative real-time PCR miRNA expression profiling (screening cohort, n = 36)...
May 2016: Journal of Allergy and Clinical Immunology
Hanna L Sladitschek, Pierre A Neveu
MicroRNAs have emerged as important markers and regulators of cell identity. Precise measurements of cellular miRNA levels rely traditionally on RNA extraction and thus do not allow to follow miRNA expression dynamics at the level of single cells. Non-invasive miRNA sensors present an ideal solution but they critically depend on the performance of suitable ubiquitous promoters that reliably drive expression both in pluripotent and differentiated cell types. Here we describe the engineering of bidirectional promoters that drive the expression of precise ratiometric fluorescent miRNA sensors in single mouse embryonic stem cells (mESCs) and their differentiated derivatives...
2016: PloS One
Jezrom B Fordham, Katherine Guilfoyle, Afsar Raza Naqvi, Salvador Nares
MicroRNA are small, non-coding, single-stranded RNAs that are estimated to regulate ~60% of the human genome. MiRNA profiling of monocyte-to-osteoclast differentiation identified miR-142-3p as a miRNA that is significantly, differentially expressed throughout osteoclastogenesis. Enforced expression of miR-142-3p via transient transfection with miR-142-3p mimic inhibited cell-to-cell contact and fusion, decreased protein kinase C alpha expression, and ultimately reduced cell viability. miR-142-3p was also identified as significantly differentially expressed during monocyte-to-macrophage differentiation and overexpression of miR-142-3p prevented their conversion to osteoclasts...
2016: Scientific Reports
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