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Micro-rna

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https://www.readbyqxmd.com/read/28812922/a-circulating-micro-rna-signature-serves-as-a-diagnostic-and-prognostic-indicator-in-sarcoidosis
#1
Christian Ascoli, Yue Huang, Cody Schott, Benjamin A Turturice, Ahmed Metwally, David L Perkins, Patricia W Finn
Micro-RNAs (miRNAs) act as post-transcriptional regulators of gene expression. In sarcoidosis, aberrant miRNA expression may enhance immune responses mounted against an unknown antigenic agent. We tested whether a distinct miRNA signature functions as a diagnostic biomarker and explored its role as an immune modulator in sarcoidosis. Expression of miRNAs from peripheral blood mononuclear cells from subjects that met clinical and histopathologic criteria for sarcoidosis were compared to those from matched controls in the ACCESS study...
August 16, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28811507/global-mapping-of-mirna-target-interactions-in-cattle-bos-taurus
#2
Troels K H Scheel, Michael J Moore, Joseph M Luna, Eiko Nishiuchi, John Fak, Robert B Darnell, Charles M Rice
With roles in development, cell proliferation and disease, micro-RNA (miRNA) biology is of great importance and a potential therapeutic target. Here we used cross-linking immunoprecipitation (CLIP) and ligation of miRNA-target chimeras on the Argonaute (AGO) protein to globally map miRNA interactions in the cow. The interactome is the deepest reported to date. miRNA targeting principles are consistent with observations in other species, but with expanded pairing rules. Experimental mapping robustly predicted functional miR-17 regulatory sites...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807541/urinary-rna-based-biomarkers-for-prostate-cancer-detection
#3
REVIEW
Filippo Martignano, Lorena Rossi, Antonio Maugeri, Valentina Gallà, Vincenza Conteduca, Ugo De Giorgi, Valentina Casadio, Giuseppe Schepisi
Prostate cancer (PCa) is the commonest malignancy in the male population worldwide. Serum prostate specific antigen (PSA) test is the most important biomarker for the detection, follow-up and therapeutic monitoring of PCa. Defects in PSA specificity have elicited research for new biomarkers to improve early diagnosis and avoid false-positive results. This review evaluates urinary RNA-based biomarkers. Urine is a versatile body fluid for non-invasive biomarker detection in case of urological malignancies. The importance of RNA-based biomarkers has been demonstrated by the current use of PCA3, a long non coding RNA biomarker already approved by the Food and Drugs Administration...
August 11, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28803886/a-method-for-extracting-and-characterizing-rna-from-urine-for-downstream-pcr-and-rnaseq-analysis
#4
Kun Zhou, Monique A Spillman, Kian Behbakht, Julia M Komatsu, Juan E Abrahante, Douglas Hicks, Brent Schotl, Evan Odean, Kenneth L Jones, Michael W Graner, Lynne T Bemis
Readily accessible samples such as urine or blood are seemingly ideal for differentiating and stratifying patients; however, it has proven a daunting task to identify reliable biomarkers in such samples. Noncoding RNA holds great promise as a source of biomarkers distinguishing physiologic wellbeing or illness. Current methods to isolate and characterize RNA molecules in urine are limited. In this proof of concept study, we present a method to extract and identify small noncoding RNAs in urine. Initially, quantitative reverse transcription PCR was applied to confirm the presence of microRNAs in total RNA extracted from urine...
August 10, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28789862/genome-wide-identification-and-characterization-of-putative-lncrnas-in-the-diamondback-moth-plutella-xylostella-l
#5
Yue Wang, Tingting Xu, Weiyi He, Xiujing Shen, Qian Zhao, Jianlin Bai, Minsheng You
Long non-coding RNAs (lncRNAs) are of particular interest because of their contributions to many biological processes. Here, we present the genome-wide identification and characterization of putative lncRNAs in a global insect pest, Plutella xylostella. A total of 8096 lncRNAs were identified and classified into three groups. The average length of exons in lncRNAs was longer than that in coding genes and the GC content was lower than that in mRNAs. Most lncRNAs were flanked by canonical splice sites, similar to mRNAs...
August 5, 2017: Genomics
https://www.readbyqxmd.com/read/28760845/micro-rna-98-interferes-with-thrombospondin-1-expression-in-peripheral-b-cells-of-patients-with-asthma
#6
Liming Chen, Jianfeng Xu, Xiaoxia Chu, Chenghua Ju
Thrombospondin 1 (TSP1)-producing B cells are an important immune regulatory cell fraction in the body, which are compromised in a number of immune diseases. Micro RNAs (miR) are involved in the immune regulation. This study aims to elucidate the mechanism by which miR-98 interferes with the expression of TSP1 in B cells of the peripheral blood system. In this study, peripheral blood samples were collected from patients with allergic asthma. The B cells were isolated from the blood samples to be analyzed for the expression of miR-98 and TSP1...
July 31, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28709971/epigenetic-mechanisms-underlying-the-toxic-effects-associated-with-arsenic-exposure-and-the-development-of-diabetes
#7
REVIEW
Fazlullah Khan, Saeideh Momtaz, Kamal Niaz, Fatima Ismail Hassan, Mohammad Abdollahi
BACKGROUND: Exposure to inorganic arsenic (iAs) is a major threat to the human health worldwide. The consumption of arsenic in drinking water and other food products is associated with the risk of development of type-2 diabetes mellitus (T2DM). The available experimental evidence indicates that epigenetic alterations may play an important role in the development of diseases that are linked with exposure to environmental toxicants. iAs seems to be associated with the epigenetic modifications such as alterations in DNA methylation, histone modifications, and micro RNA (miRNA) abundance...
September 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28706912/diagnosis-and-prognosis-review-of-biomarkers-for-mesothelioma
#8
REVIEW
Huan H Sun, Allen Vaynblat, Harvey I Pass
Malignant pleural mesothelioma (MPM) is an aggressive disease arising in pleural cell lining and is associated with asbestos exposure. Today, there is a rising incidence of MPM reaching 3,000 annual cases nationally, primarily from the large population occupationally exposed to asbestos between 1940 and 1980. With a prolonged latency period, presenting clinically 10 to 40 years after exposure, MPM is often diagnosed in late stages and presents median survival time of less than 12 months. There is a serious need for improvement in prognostic and diagnostic tools for MPM...
June 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28699365/activating-the-chromatin-by-noncoding-rnas
#9
Nihay Laham-Karam, Pia Laitinen, Tiia A Turunen, Seppo Ylä-Herttuala
SIGNIFICANCE: The extent and breadth of transcription have recently been uncovered and this has revealed an extensive array of noncoding RNAs (ncRNAs). The biological role and significance of these ncRNAs have been realized and to date it appears that ncRNAs may have many important regulatory functions. ncRNAs are multifaceted and they induce a complexity of different types of transcriptional and posttranscriptional regulation, including gene activation. Recent Advances: Association of ncRNAs with gene activation is an important finding...
August 10, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28687015/micro-rna-155-plays-a-critical-role-in-the-initiation-of-food-allergen-related-inflammation-in-the-intestine
#10
Ri-Tian Lin, Jiang-Qi Liu, Hui-Ying Lu, Ya-Mei Chen, Li Guan, Zhi-Gang Liu, Zhan-Ju Liu, Ping-Chang Yang
The pathogenesis of food allergy (FA) is to be further investigated. Regulatory B cells (B10 cell) play a critical in the maintenance of the homeostasis in the intestine. Deregulation of B10 cell is associated with immune inflammation. Micro RNA (miR) 155 is involved in affecting immune cell function. This study tests a hypothesis that miR-155 affects the B10 cell function to facilitate the initiation of FA. In this study, BALB/c mice were sensitized to ovalbumin (OVA) to induce FA-like inflammation in the intestine...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28685590/a-key-role-of-microrna-26a-in-the-scar-formation-after-glaucoma-filtration-surgery
#11
Wei-Hong Wang, Ai-Jun Deng, Sheng-Guang He
Glaucoma is one of the leading causes of blind worldwide. Post-operative scar formation of filtering tract was one of the main reasons for failure of glaucoma filtration surgery. In this study, we conducted several experiments to detect the expression of miR-26a in the scar tissue in filtering tract and then detect its potential biological effects as well as its target gene. In our present study, it was found that miR-26a was significantly down-regulated in filtering tract scar. Advanced study on the association between the miR-26a and connective tissue growth factor (CTGF) micro RNA (mRNA) showed that miR-26a was inversely correlated with CTGF mRNA level...
July 7, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28679133/characterization-of-micro-rna-profile-in-the-blood-of-patients-with-marfan-s-syndrome
#12
Masood Abu-Halima, Nicole Ludwig, Tanja Rädle-Hurst, Andreas Keller, Lars Motsch, Ina Marsollek, Mohammed Abd El Rahman, Hashim Abdul-Khaliq, Eckart Meese
No abstract text is available yet for this article.
July 5, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28674337/methods-for-evaluating-the-stimuli-responsive-delivery-of-nucleic-acid-and-gene-medicines
#13
REVIEW
Shintaro Fumoto, Koyo Nishida
In this review, we have summarized evaluation methods for the analysis of external stimuli-mediated nucleic acid and gene delivery. Prior to reviewing these evaluation methods, we describe various delivery processes of nucleic acid and gene medicines (small interfering RNA (siRNA), micro RNA, mRNA, plasmid DNA, etc.), which include interaction with blood components, bio-distribution, disposition in the target tissue, cell entry, intracellular trafficking, nuclear localization, and dissociation from the carriers...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28671103/effects-of-codonopsis-pilosula-water-extract-on-microrna-expression-profile-in-d-galactose-induced-senile-mice
#14
Jianguang Cai, Muhammad Aqeel Ashraf, Limei Luo, Hui Tang
This paper aims to observe and analyze effects of Codonopsis pilosula water extract on micro RNA (miRNA) expression profile in liver tissue of senile mice. The 110 Konminmice were randomly divided into five groups, including D-galactose-induced senile model group, normal control group, and low, middle and high dose intervention groups. Continuous modeling lasted 40 days. General symptoms and changes of body mass of the model mice were monitored and observed. The levels of serum glutamic pyruvic transaminase (ALT) and alkaline phosphatase (ALP) of mice were compared, and miRNA of differential expression during aging of D-galactose-induction and high-dose Codonopsis pilosula intervention was analyzed...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28650446/exosomes-from-plasmodium-infected-hosts-inhibit-tumor-angiogenesis-in-a-murine-lewis-lung-cancer-model
#15
Y Yang, Q Liu, J Lu, D Adah, S Yu, S Zhao, Y Yao, L Qin, L Qin, X Chen
Previous research to investigate the interaction between malaria infection and tumor progression has revealed that malaria infection can potentiate host immune response against tumor in tumor-bearing mice. Exosomes may play key roles in disseminating pathogenic host-derived molecules during infection because several studies have shown the involvement and roles of extracellular vesicles in cell-cell communication. However, the role of exosomes generated during Plasmodium infection in tumor growth, progression and angiogenesis has not been studied either in animals or in the clinics...
June 26, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28642484/mir-100-5p-inhibition-induces-apoptosis-in-dormant-prostate-cancer-cells-and-prevents-the-emergence-of-castration-resistant-prostate-cancer
#16
Noushin Nabavi, Nur Ridzwan Nur Saidy, Erik Venalainen, Anne Haegert, Abhijit Parolia, Hui Xue, Yuwei Wang, Rebecca Wu, Xin Dong, Colin Collins, Francesco Crea, Yuzhuo Wang
Carcinoma of the prostate is the most common cancer in men. Treatment of aggressive prostate cancer involves a regiment of radical prostectomy, radiation therapy, chemotherapy and hormonal therapy. Despite significant improvements in the last decade, the treatment of prostate cancer remains unsatisfactory, because a significant fraction of prostate cancers develop resistance to multiple treatments and become incurable. This prompts an urgent need to investigate the molecular mechanisms underlying the evolution of therapy-induced resistance of prostate cancer either in the form of castration-resistant prostate cancer (CRPC) or transdifferentiated neuroendocrine prostate cancer (NEPC)...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28628915/mir-495-promotes-senescence-of-mesenchymal-stem-cells-by-targeting-bmi-1
#17
Xiujun Li, Yuxian Song, Dan Liu, Jiaojiao Zhao, Jingjing Xu, Jing Ren, Yali Hu, Zhiqun Wang, Yayi Hou, Guangfeng Zhao
BACKGROUND/AIMS: Mesenchymal stem cells (MSCs) play an important role in regulating angiogenesis and immune balance. Abnormal proliferation and function of MSCs were reported at maternal fetal interface in patients with pre-eclampsia (PE). Micro-RNA-495 was known to be upregulated in the MSCs derived from patients with PE. However, it is not clear whether the up-regulated miR-495 is related to the pathogenesis of PE. METHODS: We analyzed the expression of miR-495 in MSCs and umbilical cords derived from healthy pregnancies (NC) and PE, then we upregulated or downregulated the expression of miR-495 in MSCs derived from NC and tested the proliferation, apoptosis, migration, invasion, tube formation and senescence...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28623160/basic-concepts-in-molecular-biology-related-to-genetics-and-epigenetics
#18
Dolores Corella, Jose M Ordovas
The observation that "one size does not fit all" for the prevention and treatment of cardiovascular disease, among other diseases, has driven the concept of precision medicine. The goal of precision medicine is to provide the best-targeted interventions tailored to an individual's genome. The human genome is composed of billions of sequence arrangements containing a code that controls how genes are expressed. This code depends on other nonstatic regulators that surround the DNA and constitute the epigenome...
June 13, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28620300/novel-anti-fibrotic-therapies
#19
REVIEW
Benita L McVicker, Robert G Bennett
Fibrosis is a major player in cardiovascular disease, both as a contributor to the development of disease, as well as a post-injury response that drives progression. Despite the identification of many mechanisms responsible for cardiovascular fibrosis, to date no treatments have emerged that have effectively reduced the excess deposition of extracellular matrix associated with fibrotic conditions. Novel treatments have recently been identified that hold promise as potential therapeutic agents for cardiovascular diseases associated with fibrosis, as well as other fibrotic conditions...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28617420/mirna-mediated-post-transcriptional-silencing-of-transgenes-leads-to-increased-adeno-associated-viral-vector-yield-and-targeting-specificity
#20
C A Reid, S L Boye, W W Hauswirth, D M Lipinski
The production of high-titer recombinant adeno-associated virus (rAAV) vector is essential for treatment of genetic diseases affecting the retina and choroid, where anatomical constraints may limit injectable volumes. Problematically, cytotoxicity arising from overexpression of the transgene during vector production frequently leads to a reduction in vector yield. Herein, we evaluate the use of microRNA (miRNA)-mediated silencing to limit overexpression of cytotoxic transgenes during packaging as a method of increasing vector yield...
August 2017: Gene Therapy
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