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MiRNA

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https://www.readbyqxmd.com/read/29236328/mirnalet-7a-mediates-prostate-cancer-pc-3-cell-invasion-migration-by-inducing-epithelial-mesenchymal-transition-through-ccr7-mapk-pathway
#1
Tang Guanlin, Du Ruoyang, Tang Zhaobing, Kuang Youlin
Prostate cancer is one of the most common malignancies in older men. Recent evidence has demonstrated microRNA (miRNA) Let-7a expression decreased in prostate cancer, while the expression of C-C chemokine receptor type 7 (CCR7) increased. In this study, we investigated whether CCR7 overexpression was associated with a decrease in the expression of miRNA let-7a in invasion and metastasis of prostate cancer cell. Methods Synthetic let-7a mimics and let-7a inhibitors were transfected into prostate cancer PC-3 cells repectively...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236317/association-of-rno-mir-183-96-182-cluster-with-diethylnitrosamine-induced-liver-fibrosis-in-wistar-rats
#2
Rajeev Chandel, Roli Saxena, Ashim Das, Jyotdeep Kaur
Chronic liver injury due to various etiological factors including environmental carcinogens results in development of liver fibrosis. Numerous studies showed role of miRNAs in liver fibrosis. In the present study, we determined the rno-miR-183-96-182 cluster expression during hepatic fibrosis induced by diethylnitrosamine (DEN) treated Wistar rats and its association with plasma levels of circulating rno-miR-96, rno-miR-182, rno-miR-183, liver function test and lipid profile, aiming to identify their potential for histological stratification and early diagnosis of liver fibrosis...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236314/il-1%C3%AE-induced-mir-34a-up-regulation-inhibits-cyr61-to-modulate-osteoarthritis-chondrocyte-proliferation-through-adamts-4
#3
Bo Yang, Jiangdong Ni, Hui Long, Jun Huang, Cheng Yang, Xianzhe Huang
Osteoarthritis (OA) is the most prevalent degenerative joint disease with multifactorial etiology caused by risk factors. The degradation of aggrecan by upregulated ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) is the key event in the development of OA. ADAMTS-4 contributes to aggrecan degradation in human OA. Cysteine-rich angiogenic inducer 61 (Cyr61), which is associated with diseases related to chronic inflammation, is found in articular cartilage from patients with osteoarthritis and appears to suppress ADAMTS-4 activity, possibly leading to chondrocyte cloning...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236313/micrornas-and-exosomes-in-depression-potential-diagnostic-biomarkers
#4
Jahanshir Tavakolizadeh, Kambiz Roshanaei, Arash Salmaninejad, Reza Yari, Javid Sadri Nahand, Hoda Khoshdel Sarkarizi, Seyed Mojtaba Mousavi, Reza Salarinia, Majid Rahmati, Seyed Farshid Mousavi, Ryan Mokhtari, Hamed Mirzaei
Depression is known as one of important psychiatric disorders which could be associated with disability among various populations. Diagnostic and statistical manual of mental disorders, 4th edition (DSM-IV) and international statistical classification of diseases and related health problems (ICD-10) could be used as subjective diagnostic schemes for identification of mental disorders such as depression. Utilization of subjective diagnostic schemes are associated with limitations. Hence, it seems that employing of new diagnosis platforms is required...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236292/a-novel-report-of-mir-4301-induces-cell-apoptosis-by-negatively-regulating-drd2-expression-in-human-breast-cancer-cells
#5
Naghmeh Gholipour, Anna Ohradanova-Repic, Ghasem Ahangari
BACKGROUND: In several cancers, microRNA (miRNAs) play vital roles in tumour initiation, drug resistance and metastasis. The aim of this study was to examine the expression levels of miR-4301 in human breast cancer and investigate whether its potential roles involved targeting Dopamine receptor D2 (DRD2). METHODS: Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) was also used to examine the expression levels of miR-4301 in human breast cancer cell lines MDA-MB-231, MCF-7 and SKBR3...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236291/dysregulation-of-mirna-biogenesis-machinery-and-mirna-rna-ratio-in-skeletal-muscle-of-als-mice
#6
Aaron P Russell, Lobna Ghobrial, Shyuan Ngo, Justin Yerbury, Evelyn Zacharewicz, Roger Chung, Séverine Lamon
INTRODUCTION: The pathology of amyotrophic lateral sclerosis (ALS) is associated with impaired RNA processing and miRNA dysregulation. Here we investigate the regulation of the members of the miRNA biogenesis pathways and total miRNA levels at different stages of the disease. METHODS: Muscle, brain and spinal cord tissue were obtained from pre-symptomatic, symptomatic and end-stage SOD1G93A mice. miRNA and transcript levels were measured by qPCR. RESULTS: As the diseases progresses, several genes involved in miRNA biogenesis as well as the miRNA/total RNA ratio increased in the tibialis anterior muscle, but not in the soleus or in neural tissue...
December 13, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29236257/identifying-risc-components-using-ago2-immunoprecipitation-and-mass-spectrometry
#7
Tingfang Yi
Complex immunoprecipitation (Co-IP) is a powerful technique for precipitating an intact protein complex out of solution and cell lysates using an antibody that specifically binds to a particular protein in a large complex of proteins. Mass spectrometry (MS) is used to identify, sequence, and quantify proteins. RNA-induced silencing complexes (RISCs), Ago2 centered protein assemblies, are essential for miRNA mediated RNA decay and gene expression regulation; however, the complete list of RISCs is unknown. Here we describe methods used to combine IP and MS to identify new components of RISCs...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29236256/integrated-analysis-of-mirna-and-mrna-expression-profiles-to-identify-mirna-targets
#8
Zhiming Li, Chi-Meng Tzeng
miRNAs are involved in various biological processes and different diseases through interacting with their target mRNAs. Therefore, deciphering miRNA targets is important for diagnostics and therapeutics. However, it is still complex and expensive to do large scale screening for miRNA alterations and identify their downstream miRNA targets. Recently, integrating analysis of miRNA expression profiles and mRNA expression levels has been used to successfully identify the most prominent interactions. Here, we present a protocol that combines both expression data and computational prediction to refine the microarray result for identifying the miRNA targets...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29236255/identifying-mirna-targets-using-ago-ripseq
#9
Rebecca Petri, Johan Jakobsson
microRNAs (miRNA) are small, noncoding RNAs that bind to messenger RNAs (mRNAs) and regulate their activity. They are, therefore, important posttranscriptional regulators. In recent years it has become clear that miRNAs regulate large genetic networks, rather than single genes, and that one gene can be targeted by several miRNAs. To understand the role of miRNAs in cells or tissues, it is therefore important to analyze the targetome of miRNAs. Here, we present a technique called Argonaute-RNA Immunoprecipitation (AGO-RIP) which takes advantages of the fact that miRNAs and their targets are directly bound by the Argonaute protein family...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29236145/-non-coding-rna-innovative-regulators-with-therapeutic-perspective
#10
A Bührke, C Bär, T Thum
As a result of the Human Genome Project it became evident that only 1-3% of all gene transcripts encode proteins. The vast majority of gene transcripts are in fact characterized as non-coding RNAs (ncRNAs). These ncRNAs have a huge impact on diverse physiological and pathological mechanisms within an organism. In particular, microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), which are differentiated by their size and function, are involved in the regulation and development of many illnesses. In the context of heart and cardiovascular diseases numerous ncRNAs have also already been described in some detail...
December 13, 2017: Herz
https://www.readbyqxmd.com/read/29236054/genome-wide-profiling-of-small-rnas-and-degradome-revealed-conserved-regulations-of-mirnas-on-auxin-responsive-genes-during-fruit-enlargement-in-peaches
#11
Mengya Shi, Xiao Hu, Yu Wei, Xu Hou, Xue Yuan, Jun Liu, Yueping Liu
Auxin has long been known as a critical phytohormone that regulates fruit development in plants. However, due to the lack of an enlarged ovary wall in the model plants Arabidopsis and rice, the molecular regulatory mechanisms of fruit division and enlargement remain unclear. In this study, we performed small RNA sequencing and degradome sequencing analyses to systematically explore post-transcriptional regulation in the mesocarp at the hard core stage following treatment of the peach (Prunus persica L.) fruit with the synthetic auxin α-naphthylacetic acid (NAA)...
December 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29236052/micrornas-in-parkinson-s-disease-from-pathogenesis-to-novel-diagnostic-and-therapeutic-approaches
#12
REVIEW
Loredana Leggio, Silvia Vivarelli, Francesca L'Episcopo, Cataldo Tirolo, Salvo Caniglia, Nunzio Testa, Bianca Marchetti, Nunzio Iraci
Parkinson's disease (PD) is the most prevalent central nervous system (CNS) movement disorder and the second most common neurodegenerative disease overall. PD is characterized by the progressive loss of dopaminergic (DAergic) neurons in the substantia nigra pars compacta (SNpc) within the midbrain, accumulation of alpha-synuclein (α-SYN) in Lewy bodies and neurites and excessive neuroinflammation. The neurodegenerative processes typically begin decades before the appearance of clinical symptoms. Therefore, the diagnosis is achievable only when the majority of the relevant DAergic neurons have already died and for that reason available treatments are only palliative at best...
December 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29235467/in-situ-functional-dissection-of-rna-cis-regulatory-elements-by-multiplex-crispr-cas9-genome-engineering
#13
Qianxin Wu, Quentin R V Ferry, Toni A Baeumler, Yale S Michaels, Dimitrios M Vitsios, Omer Habib, Roland Arnold, Xiaowei Jiang, Stefano Maio, Bruno R Steinkraus, Marta Tapia, Paolo Piazza, Ni Xu, Georg A Holländer, Thomas A Milne, Jin-Soo Kim, Anton J Enright, Andrew R Bassett, Tudor A Fulga
RNA regulatory elements (RREs) are an important yet relatively under-explored facet of gene regulation. Deciphering the prevalence and functional impact of this post-transcriptional control layer requires technologies for disrupting RREs without perturbing cellular homeostasis. Here we describe genome-engineering based evaluation of RNA regulatory element activity (GenERA), a clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 platform for in situ high-content functional analysis of RREs...
December 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29235390/mir-122-and-other-micrornas-as-potential-circulating-biomarkers-of-drug-induced-liver-injury
#14
Lawrence S Howell, Lucy Ireland, B Kevin Park, Christopher E Goldring
Drug-induced liver injury (DILI) is a severe adverse drug reaction which is of major concern to patients, clinicians and the pharmaceutical industry. Accurate and rapid detection of DILI is important for patient stratification and treatment in the clinic and benefits pre-clinical drug design and risk assessment. MicroRNAs (miRNAs) offer a potential new and improved class of circulating biomarkers of DILI over the current gold standard biomarkers. Areas covered: This review highlights the shortcomings of the currently used panel of biomarkers and how miRNAs, primarily miR-122, show an improved level of specificity and sensitivity in the prediction of DILI...
December 13, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29235389/extracellular-genomic-biomarkers-of-osteoarthritis
#15
Emma Budd, Giovanna Nalesso, Ali Mobasheri
Introduction Osteoarthritis (OA), a chronic, debilitating and degenerative disease of the joints, is the most common form of arthritis. The seriousness of this prevalent and chronic disease is often overlooked. Disease modifying OA drug development is hindered by the lack of soluble biomarkers to detect OA early. The objective of OA biomarker research is to identify early OA prior to the appearance of radiographic signs and the development of pain. Areas covered This review has focused on extracellular genomic material that could serve as biomarkers of OA...
December 13, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/29234953/involvement-of-microrna-23b-in-tnf-%C3%AE-reduced-bmsc-osteogenic-differentiation-via-targeting-runx2
#16
Lin Deng, Guoli Hu, Lei Jin, Chenglong Wang, Hongwen Niu
Elucidation of the molecular mechanism governing bone marrow mesenchymal stem cell (BMSC) osteogenic differentiation is of great importance for improving the treatment of osteoporosis. TNF-α is a well-known inhibitory factor during osteogenic differentiation of BMSCs. In our experiment, we consistently observed that TNF-α significantly inhibited BMSC osteogenic differentiation, which was partially rescued by BAY 11-7082 (NF-κB inhibitor). In this study, we examined the potential roles of microRNAs (miRNAs) involved in TNF-α-mediated reduction of BMSC osteogenesis...
December 12, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29234933/micrornas-and-metastasis-small-rnas-play-big-roles
#17
Jongchan Kim, Fan Yao, Zhenna Xiao, Yutong Sun, Li Ma
MicroRNAs (miRNAs) are small non-coding RNAs regulating post-transcriptional gene expression. They play important roles in many biological processes under physiological or pathological conditions, including development, metabolism, tumorigenesis, metastasis, and immune response. Over the past 15 years, significant insights have been gained into the roles of miRNAs in cancer. Depending on the cancer type, miRNAs can act as oncogenes, tumor suppressors, or metastasis regulators. In this review, we focus on the role of miRNAs as components of molecular networks regulating metastasis...
December 12, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/29234674/microrna-in-glioblastoma-an-overview
#18
REVIEW
Barbara Banelli, Alessandra Forlani, Giorgio Allemanni, Anna Morabito, Maria Pia Pistillo, Massimo Romani
Glioblastoma is the most aggressive brain tumor and, even with the current multimodal therapy, is an invariably lethal cancer with a life expectancy that depends on the tumor subtype but, even in the most favorable cases, rarely exceeds 2 years. Epigenetic factors play an important role in gliomagenesis, are strong predictors of outcome, and are important determinants for the resistance to radio- and chemotherapy. The latest addition to the epigenetic machinery is the noncoding RNA (ncRNA), that is, RNA molecules that are not translated into a protein and that exert their function by base pairing with other nucleic acids in a reversible and nonmutational mode...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/29234151/srgap1-a-crucial-target-of-mir-340-and-mir-124-functions-as-a-potential-oncogene-in-gastric-tumorigenesis
#19
Tingting Huang, Yuhang Zhou, Jinglin Zhang, Chi Chun Wong, Weilin Li, Johnny S H Kwan, Rui Yang, Aden K Y Chan, Yujuan Dong, Feng Wu, Bin Zhang, Alvin H K Cheung, William K K Wu, Alfred S L Cheng, Jun Yu, Nathalie Wong, Wei Kang, Ka Fai To
Slit-Robo GTPase-activating protein 1 (SRGAP1) functions as a GAP for Rho-family GTPases and downstream of Slit-Robo signaling. We aim to investigate the biological function of SRGAP1 and reveal its regulation by deregulated microRNAs (miRNAs) in gastric cancer (GC). mRNA and protein expression of SRGAP1 were examined by quantitative reverse transcription PCR (qRT-PCR) and western blot. The biological role of SRGAP1 was demonstrated through siRNA-mediated knockdown experiments. The regulation of SRGAP1 by miR-340 and miR-124 was confirmed by western blot, dual luciferase activity assays and rescue experiments...
December 13, 2017: Oncogene
https://www.readbyqxmd.com/read/29233981/a-mir-327-fgf10-fgfr2-mediated-autocrine-signaling-mechanism-controls-white-fat-browning
#20
Carina Fischer, Takahiro Seki, Sharon Lim, Masaki Nakamura, Patrik Andersson, Yunlong Yang, Jennifer Honek, Yangang Wang, Yanyan Gao, Fang Chen, Nilesh J Samani, Jun Zhang, Masato Miyake, Seiichi Oyadomari, Akihiro Yasue, Xuri Li, Yun Zhang, Yizhi Liu, Yihai Cao
Understanding the molecular mechanisms regulating beige adipocyte formation may lead to the development of new therapies to combat obesity. Here, we report a miRNA-based autocrine regulatory pathway that controls differentiation of preadipocytes into beige adipocytes. We identify miR-327 as one of the most downregulated miRNAs targeting growth factors in the stromal-vascular fraction (SVF) under conditions that promote white adipose tissue (WAT) browning in mice. Gain- and loss-of-function experiments reveal that miR-327 targets FGF10 to prevent beige adipocyte differentiation...
December 12, 2017: Nature Communications
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