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https://www.readbyqxmd.com/read/27908272/exosome-encapsulated-micrornas-as-potential-circulating-biomarkers-in-colon-cancer
#1
Mina Hosseini, Sara Khatamianfar, Seyed Mahdi Hassanian, Reza Nedaeinia, Mojtaba Shafiee, Mina Maftouh, Majid Ghayour-Mobarhan, Soudabeh Shahid Sales, Amir Avan
Exosome-encapsulated microRNAs are being suggested as a new class novel biomarker and diagnostic and predictive markers in colorectal cancer. These particles are released from many cell types into the extracellular space upon fusion of multivesicular bodies (MVB) with the plasma membrane. They contain a wide variety of information, including proteins, lipids, RNAs, non-transcribed RNAs, microRNAs, which can be circulated in various body fluids (e.g., blood, salvia, ascites, urine). Exosomes can be taken up by neighboring or distant cells and thereby modulate the functional of recipient cells and play a key role in disease progression or facilitate metastasis in cancers...
December 1, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27905947/fibroblast-growth-factor-21-potentially-inhibits-microrna-33-expression-to-affect-macrophage-actions
#2
EDITORIAL
Yuan Guo, Fei Luo, Yuhong Yi, Danyan Xu
Atherosclerosis is a chronic inflammatory disease with complex pathological processes. MicroRNA-33 (miR-33), a novel non-coding RNA that coexpresses with sterol regulatory element-binding proteins (SREBPs), affects macrophage actions to prevent atherosclerosis. Fibroblast growth factor 21 (FGF21) is an important regulator of lipid metabolism, especially for macrophage-related cholesterol export, but the mechanism is not fully studied. Interestingly, FGF21 has been evidenced to prevent atherosclerosis via inhibiting SREBP-2 expression...
December 1, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27903618/hypolipidemic-effect-of-oleanolic-acid-is-mediated-by-the-mir-98-5p-pgc-1%C3%AE-axis-in-high-fat-diet-induced-hyperlipidemic-mice
#3
Siyu Chen, Xiaoan Wen, Wenxiang Zhang, Chen Wang, Jun Liu, Chang Liu
Oleanolic acid (OA) is an active component of the traditional Chinese herb olea europaea l. and has been found to exhibit a significant lipid-lowering effect; however, its direct molecular target is still unknown, which limits its clinical application and the possible structure modification to improve its beneficial functions. In this regard, we carried out the present study to identify potential hepatic targets of OA to mediate its lipid-lowering effect. We found that both acute and chronic OA treatments reduced serum levels of triglycerides, total cholesterol, and LDL cholesterol, and decreased hepatic expression levels of peroxisome proliferator-activated receptor-γ coactivator-1β (PGC-1β), which is an important regulator in maintaining hepatic lipid homeostasis, and its downstream target genes...
November 30, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27902930/modulating-micrornas-in-cardiac-surgery-patients-novel-therapeutic-opportunities
#4
REVIEW
Giovanni Biglino, Massimo Caputo, Cha Rajakaruna, Gianni Angelini, Eva van Rooij, Costanza Emanueli
This review focuses on microRNAs (miRs) in cardiac surgery, where they are emerging as potential targets for therapeutic intervention as well as novel clinical biomarkers. Identification of the up/down-regulation of specific miRs in defined groups of cardiac surgery patients can lead to the development of novel strategies for targeted treatment in order to maximise therapeutic results and minimise acute, delayed or chronic complications. MiRs could also be involved in determining the outcome independently of complications, for example in relation to myocardial perfusion and fibrosis...
November 27, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27899485/circulating-microrna-122-is-associated-with-the-risk-of-new-onset-metabolic-syndrome-and-type-2-diabetes
#5
Peter Willeit, Philipp Skroblin, Alexander R Moschen, Xiaoke Yin, Dorothee Kaudewitz, Anna Zampetaki, Temo Barwari, Meredith Whitehead, Cristina M Ramírez, Leigh Goedeke, Noemi Rotllan, Enzo Bonora, Alun D Hughes, Peter Santer, Carlos Fernández-Hernando, Herbert Tilg, Johann Willeit, Stefan Kiechl, Manuel Mayr
MicroRNA-122 (miR-122) is abundant in the liver and involved in lipid homeostasis, but its relevance to the long-term risk of developing metabolic disorders is unknown. We therefore measured circulating miR-122 in the prospective population-based Bruneck Study (n=810; survey year: 1995). Circulating miR-122 was associated with prevalent insulin resistance, obesity, metabolic syndrome, type-2 diabetes, and an adverse lipid profile. Among 92 plasma proteins and 135 lipid subspecies quantified with mass spectrometry, it correlated inversely with zinc-alpha-2-glycoprotein and positively with afamin, complement-factor H, VLDL-associated apolipoproteins, and lipid subspecies containing monounsaturated and saturated fatty acids...
November 29, 2016: Diabetes
https://www.readbyqxmd.com/read/27897113/strong-association-of-lipid-metabolism-related-microrna-binding-sites-polymorphisms-with-the-risk-of-late-onset-alzheimer-s-disease
#6
Lin Tan, Da-Long Zhao, Fu-Rong Sun, Meng-Shan Tan, Yu Wan, Chen-Chen Tan, Wei Zhang, Dan Miao, Jin-Tai Yu, Lan Tan
Although altered lipid metabolism has been extensively implicated in the pathogenesis of late onset Alzheimer's disease (LOAD) through cell biological and epidemiological studies, genetic studies linking lipid metabolism and LOAD are still not well understood. MicroRNAs (miRNAs) exert post-transcriptional down-regulation and their target sequence on the 3' untranslated regions (3'UTR) may be altered by single nucleotide polymorphisms (SNPs). We therefore explore whether the six loci in Clusterin gene (CLU) (rs9331949), Lipoprotein lipase gene (LPL) (rs1059507, rs3200218, rs3208305, rs3735964) and Low-density lipoprotein receptor related protein 6 (LRP6) (rs2160525) could modulate LOAD risk through the alteration of miRNA binding sites...
October 27, 2016: Current Neurovascular Research
https://www.readbyqxmd.com/read/27881406/enrichment-of-selective-mirnas-in-exosomes-and-delivery-of-exosomal-mirnas-in-vitro-and-in-vivo
#7
Duo Zhang, Heedoo Lee, Ziwen Zhu, Jasleen K Minhas, Yang Jin
Exosomes are nano vesicles secreted by cells, and contain various molecules including protein, lipid and DNA/RNA. They are crucial mediators of the intercellular communication and serve as promising vehicles for drug delivery and gene therapy. Recently, accumulating evidence suggest that microRNAs (miRNAs) may serve as new and potentially powerful targets for therapeutic interventions against various human diseases. However, steadily and effectively delivering miRNA mimics or inhibitors to target cells remains a major obstacle...
November 23, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27871993/msc-exosome-as-a-cell-free-msc-therapy-for-cartilage-regeneration-implications-for-osteoarthritis-treatment
#8
REVIEW
Wei Seong Toh, Ruenn Chai Lai, James Hoi Po Hui, Sai Kiang Lim
Mesenchymal stem cell (MSC) therapies have demonstrated efficacy in cartilage repair in animal and clinical studies. The efficacy of MSC-based therapies which was previously predicated on the chondrogenic potential of MSC is increasingly attributed to the paracrine secretion, particularly exosomes. Exosomes are thought to function primarily as intercellular communication vehicles to transfer bioactive lipids, nucleic acids (mRNAs and microRNAs) and proteins between cells to elicit biological responses in recipient cells...
November 18, 2016: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/27869139/the-transcription-cofactor-crtc1-protects-from-aberrant-hepatic-lipid-accumulation
#9
Hwijin Kim
Nonalcoholic fatty liver disease (NAFLD) is a rapidly emerging global health-problem. NAFLD encompasses a range of conditions associated with hepatic steatosis, aberrant accumulation of fat in hepatocytes. Although obesity and metabolic syndrome are considered to have a strong association with NAFLD, genetic factors that predispose liver to NAFLD and molecular mechanisms by which excess hepatic lipid develops remain largely unknown. We report that the transcription cofactor CRTC1 confers broad spectrum protection against hepatic steatosis development...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27852870/biological-activities-of-extracellular-vesicles-and-their-cargos-from-bovine-and-human-milk-in-humans-and-implications-for-infants
#10
REVIEW
Janos Zempleni, Ana Aguilar-Lozano, Mahrou Sadri, Sonal Sukreet, Sonia Manca, Di Wu, Fang Zhou, Ezra Mutai
Extracellular vesicles (EVs) in milk harbor a variety of compounds, including lipids, proteins, noncoding RNAs, and mRNAs. Among the various classes of EVs, exosomes are of particular interest, because cargo sorting in exosomes is a regulated, nonrandom process and exosomes play essential roles in cell-to-cell communication. Encapsulation in exosomes confers protection against enzymatic and nonenzymatic degradation of cargos and provides a pathway for cellular uptake of cargos by endocytosis of exosomes. Compelling evidence suggests that exosomes in bovine milk are transported by intestinal cells, vascular endothelial cells, and macrophages in human and rodent cell cultures, and bovine-milk exosomes are delivered to peripheral tissues in mice...
November 16, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27834139/microrna-130a-regulation-of-desmocollin-2-in-a-novel-model-of-arrhythmogenic-cardiomyopathy
#11
Stefan R Mazurek, Tyler Calway, Cynthia Harmon, Priyanka Farrell, Gene H Kim
BACKGROUND: MicroRNAs are small noncoding RNA molecules that play a critical role in regulating physiological and disease processes. Recent studies have now recognized microRNAs as an important player in cardiac arrhythmogenesis. Molecular insight into arrhythmogenic cardiomyopathy (AC) has primarily focused on mutations in desmosome proteins. To our knowledge, models of AC due to microRNA dysregulation have not been reported. Previously, we reported on miR-130a mediated down-regulation of Connexin43...
November 9, 2016: MicroRNA
https://www.readbyqxmd.com/read/27813568/gynophore-mirna-analysis-at-different-developmental-stages-in-arachis-duranensis
#12
Y Shen, Y H Liu, X J Zhang, Q Sha, Z D Chen
Peanut is one of the most important oilseed crops in the world that provides a significant amount of lipids and protein for many people. The gynophore plays an important role in gynophore development after fertilization of the peanut ovule. MicroRNAs (miRNAs) play an important role in numerous developmental and physiological plant processes. Therefore, it is essential to analyze the miRNA sequences at different gynophore stages to explore and validate gene function. Multiple small RNAs were sequenced and collected from gynophore stages A1, A2, and A3 (5, 10, and 20 days of development, respectively) for further prediction...
October 24, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27789285/the-role-of-micrornas-in-liver-injury-at-the-crossroad-between-hepatic-cell-death-and-regeneration
#13
Volker M Lauschke, Souren Mkrtchian, Magnus Ingelman-Sundberg
The liver fulfills critical metabolic functions, such as controlling blood sugar and ammonia levels, and is of central importance for lipid metabolism and detoxification of environmental and chemical agents, including drugs. Liver injuries of different etiology can elicit a spectrum of responses. Some hepatocytes initiate molecular programs resulting in cell death, whereas others undergo cellular divisions to regenerate the damaged organ. Interestingly, recent research indicates that microRNAs serve as very rapid as well as long-term regulators in these processes...
October 24, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27777903/exosomes-as-the-source-of-biomarkers-of-metabolic-diseases
#14
Min-Jae Lee, Dong-Ho Park, Ju-Hee Kang
Exosomes are extracellular vesicles that contain molecules that regulate the metabolic functions of adjacent or remote cells. Recent in vitro, in vivo and clinical studies support the hypothesis that exosomes released from various cell types play roles in the progression of metabolic disorders including type 2 diabetes. Based on this concept and advances in other diseases, the proteins, mRNA, microRNA and lipids in exosomes isolated from biological fluids have been proposed as biomarkers in metabolic disorders...
September 2016: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/27775792/mir-143-is-involved-in-endothelial-cell-dysfunction-through-suppression-of-glycolysis-and-correlated-with-atherosclerotic-plaques-formation
#15
R-H Xu, B Liu, J-D Wu, Y-Y Yan, J-N Wang
OBJECTIVE: Atherosclerosis is recognized as a chronic inflammatory disease leading to hardening of the vessel wall and narrowing of arteries. Endothelial cells (ECs) exhibit highly active glycolysis, the dysfunction of which leads to accumulation of lipids in the arterial wall and formation of atherosclerotic plaque. MATERIALS AND METHODS: qRT-PCR was performed to compare the deregulated miR-143 between atherosclerotic plaque and normal vessel tissues. The direct target of miR-143 was verified by Western blot and luciferase assay...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27771230/sox9-facilitates-proliferation-differentiation-and-lipogenesis-in-primary-cultured-human-sebocytes
#16
Ge Shi, Ting-Ting Wang, Juan-Hua Quan, Shi-Jie Li, Man-Feng Zhang, Pei-Yu Liao, Yi-Ming Fan
BACKGROUND: The transcription factor Sox9 is pivotal in the morphogenesis of hair follicles, but its role in sebocytes is poorly understood. OBJECTIVE: We investigated the effect of Sox9 on human sebocyte proliferation, differentiation and lipogenesis. METHODS: Sox9 expression was detected by immunohistochemistry in normal skin and acne lesion. Primary cultured human sebocytes were transfected with adenovirus expressing GFP-Sox9 or Sox9 microRNA...
October 13, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/27762728/mir-138-mir-222-overexpression-characterizes-the-mirnome-of-amniotic-mesenchymal-stem-cells-in-obesity
#17
Carmela Nardelli, Ilaria Granata, Laura Iaffaldano, Valeria D'Argenio, Valentina Del Monaco, Giuseppe Maria Maruotti, Daniela Omodei, Luigi Del Vecchio, Pasquale Martinelli, Francesco Salvatore, Mario Rosario Guarracino, Lucia Sacchetti, Lucio Pastore
Clinical findings and data obtained in animal models indicate that nutrient uptake and exposure to environmental agents during pregnancy may affect fetal/newborn gestational programming, thereby resulting in obesity and/or obesity-related disorders in offspring. Human amniotic mesenchymal stem cells (hA-MSCs) differentiate into adipocytes and are thus a suitable model to investigate adipocyte functions in obesity. The aim of this study was to elucidate the miRNome of hA-MSCs and its contribution to obesity in pregnancy...
November 8, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27760548/atl-derived-exosomes-modulate-mesenchymal-stem-cells-potential-role-in-leukemia-progression
#18
Jamal El-Saghir, Farah Nassar, Nadim Tawil, Marwan El-Sabban
BACKGROUND: Exosomes are membrane nano-vesicles secreted by a multitude of cells that harbor biological constituents such as proteins, lipids, mRNA and microRNA. Exosomes can potentially transfer their cargo to other cells, implicating them in many patho-physiological processes. Mesenchymal stem cells (MSCs), residents of the bone marrow and metastatic niches, potentially interact with cancer cells and/or their derived exosomes. In this study, we investigated whether exosomes derived from adult T-cell leukemia/lymphoma (ATL) cells act as intercellular messengers delivering leukemia-related genes that modulate the properties of human MSCs in favor of leukemia...
October 19, 2016: Retrovirology
https://www.readbyqxmd.com/read/27760169/responses-of-bovine-innate-immunity-to-mycobacterium-avium-subsp-paratuberculosis-infection-revealed-by-changes-in-gene-expression-and-levels-of-microrna
#19
Michela Malvisi, Fiorentina Palazzo, Nicola Morandi, Barbara Lazzari, John L Williams, Giulio Pagnacco, Giulietta Minozzi
Paratuberculosis in cattle is a chronic granulomatous gastroenteritis caused by Mycobacterium avium subsp. paratubercolosis (MAP) which is endemic worldwide. In dairy herds, it is responsible for huge economic losses. However, current diagnostic methods do not detect subclinical infection making control of the disease difficult. The identification of MAP infected animals during the sub-clinical phase of infection would play a key role in preventing the dissemination of the pathogen and in reducing transmission...
2016: PloS One
https://www.readbyqxmd.com/read/27756894/altered-microrna-9-expression-level-is-directly-correlated-with-pathogenesis-of-nonalcoholic-fatty-liver-disease-by-targeting-onecut2-and-sirt1
#20
Ran Ao, Ying Wang, Jing Tong, Bai-Fang Wang
BACKGROUND MicroRNA-9 (miR-9) was detected in nonalcoholic fatty liver disease (NAFLD) patients to understand the role of miR-9 in NAFLD development. MATERIAL AND METHODS Between February 2014 and February 2015, 105 cases of NAFLD were recruited and confirmed by liver biopsy pathology, including patients with mild NAFLD (n=58) and moderate-severe NAFLD (n=47); nonalcoholic steatohepatitis (NASH) (n=53) and non-NASH (n=52); and 50 healthy participants were regarded as the healthy control group. MiR-9 expression was measured by qRT-PCR...
October 19, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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