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https://www.readbyqxmd.com/read/28345303/arterial-ageing-from-endothelial-dysfunction-to-vascular-calcification
#1
M Tesauro, A Mauriello, V Rovella, M Annicchiarico-Petruzzelli, C Cardillo, G Melino, N Di Daniele
Complex structural and functional changes occur in the arterial system with advancing age. The aged artery is characterized by changes in microRNA expression patterns, autophagy, smooth muscle cell migration and proliferation, and arterial calcification with progressively increased mechanical vessel rigidity and stiffness. With age the vascular smooth muscle cells modify their phenotype from contractile to 'synthetic' determining the development of intimal thickening as early as the second decade of life as an adaptive response to forces acting on the arterial wall...
March 27, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28336556/human-microrna-548p-decreases-hepatic-apolipoprotein-b-secretion-and-lipid-synthesis
#2
Liye Zhou, M Mahmood Hussain
OBJECTIVE: MicroRNAs (miRs) play important regulatory roles in lipid metabolism. Apolipoprotein B (ApoB), as the only essential scaffolding protein in the assembly of very-low-density lipoproteins, is a target to treat hyperlipidemia and atherosclerosis. We aimed to find out miRs that reduce apoB expression. APPROACH AND RESULTS: Bioinformatic analyses predicted that hsa-miR-548p can interact with apoB mRNA. MiR-548p or control miR was transfected in human and mouse liver cells to test its role in regulating apoB secretion and mRNA expression levels...
March 23, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28335259/lipid-nanovectors-to-deliver-rna-oligonucleotides-in-cancer
#3
REVIEW
Virginia Campani, Giuseppina Salzano, Sara Lusa, Giuseppe De Rosa
The growing knowledge on the mechanisms of gene silencing and gene regulation by non-coding RNAs (ncRNA), mainly small interfering RNA (siRNA) and microRNA (miRNA), is providing a significant boost to the development of new therapeutic strategies for the treatment of cancer. However, the design of RNA-based therapeutics is hampered by biopharmaceutical issues, thus requiring the use of suitable delivery strategies. In this regards, lipid nanovectors have been successfully investigated to deliver RNA in different forms of cancer...
July 9, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28333713/micrornas-and-lipid-metabolism
#4
Binod Aryal, Abhishek K Singh, Noemi Rotllan, Nathan Price, Carlos Fernández-Hernando
PURPOSE OF REVIEW: Work over the past decade has identified the important role of microRNAs (miRNAS) in regulating lipoprotein metabolism and associated disorders including metabolic syndrome, obesity, and atherosclerosis. This review summarizes the most recent findings in the field, highlighting the contribution of miRNAs in controlling LDL-cholesterol (LDL-C) and HDL-cholesterol (HDL-C) metabolism. RECENT FINDINGS: A number of miRNAs have emerged as important regulators of lipid metabolism, including miR-122 and miR-33...
March 22, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28331816/inhibition-of-fat-cell-differentiation-in-3t3-l1-pre-adipocytes-by-all-trans-retinoic-acid-integrative-analysis-of-transcriptomic-and-phenotypic-data
#5
Katharina Stoecker, Steffen Sass, Fabian J Theis, Hans Hauner, Michael W Pfaffl
The process of adipogenesis is controlled in a highly orchestrated manner, including transcriptional and post-transcriptional events. In developing 3T3-L1 pre-adipocytes, this program can be interrupted by all-trans retinoic acid (ATRA). To examine this inhibiting impact by ATRA, we generated large-scale transcriptomic data on the microRNA and mRNA level. Non-coding RNAs such as microRNAs represent a field in RNA turnover, which is very important for understanding the regulation of mRNA gene expression. High throughput mRNA and microRNA expression profiling was performed using mRNA hybridisation microarray technology and multiplexed expression assay for microRNA quantification...
March 2017: Biomolecular Detection and Quantification
https://www.readbyqxmd.com/read/28327197/lipid-raft-mediated-mir-3908-inhibition-of-migration-of-breast-cancer-cell-line-mcf-7-by-regulating-the-interactions-between-adipor1-and-flotillin-1
#6
Yuan Li, Fei Shan, Jinglong Chen
BACKGROUND: The mechanisms of lipid raft regulation by microRNAs in breast cancer are not fully understood. This work focused on the evaluation and identification of miR-3908, which may be a potential biomarker related to the migration of breast cancer cells, and elucidates lipid-raft-regulating cell migration in breast cancer. METHODS: To confirm the prediction that miR-3908 is matched with AdipoR1, we used 3'-UTR luciferase activity of AdipoR1 to assess this. Then, human breast cancer cell line MCF-7 was cultured in the absence or presence of the mimics or inhibitors of miR-3908, after which the biological functions of MCF-7 cells were analyzed...
March 21, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28321518/identification-and-characterization-of-durum-wheat-micrornas-in-leaf-and-root-tissues
#7
Veronica Fileccia, Edoardo Bertolini, Paolo Ruisi, Dario Giambalvo, Alfonso Salvatore Frenda, Gina Cannarozzi, Zerihun Tadele, Cristina Crosatti, Federico Martinelli
MicroRNAs are a class of post-transcriptional regulators of plant developmental and physiological processes and responses to environmental stresses. Here, we present the study regarding the annotation and characterization of MIR genes conducted in durum wheat. We characterized the miRNAome of leaf and root tissues at tillering stage under two environmental conditions: irrigated with 100% (control) and 55% of evapotranspiration (early water stress). In total, 90 microRNAs were identified, of which 32 were classified as putative novel and species-specific miRNAs...
March 20, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28301500/circulating-progenitor-cells-in-hypertensive-subjects-effectiveness-of-a-treatment-with-olmesartan-in-improving-cell-number-and-mir-profile-in-addition-to-expected-pharmacological-effects
#8
Giuseppe Mandraffino, Caterina Oriana Aragona, Valentina Cairo, Michele Scuruchi, Alberto Lo Gullo, Angela D'Ascola, Angela Alibrandi, Saverio Loddo, Sebastiano Quartuccio, Carmela Morace, Enricomaria Mormina, Giorgio Basile, Antonino Saitta, Egidio Imbalzano
CD34+ circulating progenitor cells (CD34+CPCs) are a population of multipotent cells which can delay the development of atherosclerosis and cardiovascular disease (CVD) in conditions of increased CV risk. MicroRNAs (miRs) 221 and 222 modulate different genes regulating angiogenesis and inflammation; moreover, miR221/22 have beenshown to participate in differentiation and proliferation of CD34+CPCs, inhibiting cell migration and homing. miR221/222 in CD34+CPCs from hypertensive subjects are also increased and associated with CD34+cell number and reactive oxygen species (ROS)...
2017: PloS One
https://www.readbyqxmd.com/read/28299324/micrornas-and-cardiovascular-disease-in-diabetes-mellitus
#9
REVIEW
Yue Ding, Xue Sun, Peng-Fei Shan
Cardiovascular disease (CVD) is the major macrovascular complication of diabetes mellitus. Recently, although CVD morbidity and mortality have decreased as a result of comprehensive control of CVD risk factors, CVD remains the leading cause of death of patients with diabetes in many countries, indicating the potential underlying pathophysiological mechanisms. MicroRNAs are a class of noncoding, single-stranded RNA molecules that are involved in β-cell function, insulin secretion, insulin resistance, skeletal muscle, and adipose tissue and which play an important role in glucose homeostasis and the pathogenesis of diabetic complications...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28294375/identification-of-the-interaction-between-bta-mir-370-and-olr1-gene-in-bovine-adipocyte
#10
H F Li, S H Wang, Y Guo, H B Zhao, X Y Li, X Wang
It has been shown that the oxidized low density lipoprotein receptor 1 (OLR1) gene plays an important role in the degradation of oxidized low density lipoprotein. Previous studies found a SNP in the 3'-untranslated region (3'-UTR) of the OLR1 gene associated with milk production traits in different dairy cattle populations and with loin eye area and marbling depth in beef cattle. MicroRNAs can regulate gene expression by binding the 3'-UTR of target genes to degrade or to repress the translation of target genes...
March 10, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28293627/integrating-mirna-and-mrna-expression-profiling-uncovers-mirnas-underlying-fat-deposition-in-sheep
#11
Guangxian Zhou, Xiaolong Wang, Chao Yuan, Danju Kang, Xiaochun Xu, Jiping Zhou, Rongqing Geng, Yuxin Yang, Zhaoxia Yang, Yulin Chen
MicroRNAs (miRNAs) are endogenous, noncoding RNAs that regulate various biological processes including adipogenesis and fat metabolism. Here, we adopted a deep sequencing approach to determine the identity and abundance of miRNAs involved in fat deposition in adipose tissues from fat-tailed (Kazakhstan sheep, KS) and thin-tailed (Tibetan sheep, TS) sheep breeds. By comparing HiSeq data of these two breeds, 539 miRNAs were shared in both breeds, whereas 179 and 97 miRNAs were uniquely expressed in KS and TS, respectively...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28293177/mscs-derived-exosomes-and-neuroinflammation-neurogenesis-and-therapy-of-traumatic-brain-injury
#12
REVIEW
Yongxiang Yang, Yuqin Ye, Xinhong Su, Jun He, Wei Bai, Xiaosheng He
Exosomes are endosomal origin membrane-enclosed small vesicles (30-100 nm) that contain various molecular constituents including proteins, lipids, mRNAs and microRNAs. Accumulating studies demonstrated that exosomes initiated and regulated neuroinflammation, modified neurogenic niches and neurogenesis, and were even of potential significance in treating some neurological diseases. These tiny extracellular vesicles (EVs) can derive from some kinds of multipotent cells such as mesenchymal stem cells (MSCs) that have been confirmed to be a potentially promising therapy for traumatic brain injury (TBI) in experimental models and in preclinical studies...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28286148/nanocarriers-for-microrna-delivery-in-cancer-medicine
#13
REVIEW
I Fernandez-Piñeiro, I Badiola, A Sanchez
The number of deaths caused by cancer is expected to increase partly due to the lack of selectivity and undesirable systemic effects of current treatments. Advances in the understanding of microRNA (miRNA) functions and the ideal properties of nanosystems have brought increasing attention to the application of nanomedicine to cancer therapy. This review covers the different miRNA therapeutic strategies and delivery challenges for its application in cancer medicine. Current trends in inorganic, polymeric and lipid nanocarrier development for miRNA replacement or inhibition are summarized...
March 8, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28284697/mir-27a-controls-triacylglycerol-synthesis-in-bovine-mammary-epithelial-cells-by-targeting-peroxisome-proliferator-activated-receptor-gamma
#14
K Q Tang, Y N Wang, L S Zan, W C Yang
Growing evidence has revealed that microRNA are central elements in milk fat synthesis in mammary epithelial cells. A negative regulator of adipocyte fat synthesis, miR-27a has been reported to be involved in the regulation of milk fat synthesis in goat mammary epithelial cells; however, the regulatory role of miR-27a in bovine milk fat synthesis remains unclear. In the present study, primary bovine mammary epithelial cells (BMEC) were harvested from mid-lactation cows and cultured in Dulbecco's modified Eagle's medium/F-12 medium with 10% fetal bovine serum, 5 μg/mL of insulin, 1 μg/mL of hydrocortisone, 2 μg/mL of prolactin, 1 μg/mL of progesterone, 100 U/mL of penicillin, and 100 μg/mL of streptomycin...
March 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28284064/aberrant-expression-of-microrna-induced-by-high-fructose-diet-implications-in-the-pathogenesis-of-hyperlipidemia-and-hepatic-insulin-resistance
#15
Neetu Sud, Hanyuan Zhang, Kaichao Pan, Xiao Cheng, Juan Cui, Qiaozhu Su
Fructose is a highly lipogenic sugar that can alter energy metabolism and trigger metabolic disorders. In the current study, microRNAs (miRNAs) altered by a high-fructose diet were comprehensively explored to elucidate their significance in the pathogenesis of chronic metabolic disorders. miRNA expression profiling using small noncoding RNA sequencing revealed that 19 miRNAs were significantly upregulated and 26 were downregulated in the livers of high-fructose-fed mice compared to chow-fed mice. Computational prediction and functional analysis identified 10 miRNAs, miR-19b-3p, miR-101a-3p, miR-30a-5p, miR-223-3p, miR-378a-3p, miR-33-5p, miR-145a-3p, miR-128-3p, miR-125b-5p and miR-582-3p, assembled as a regulatory network to potentially target key genes in lipid and lipoprotein metabolism and insulin signaling at multiple levels...
February 20, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28277007/microrna-mediated-non-viral-direct-conversion-of-embryonic-fibroblasts-to-cardiomyocytes-comparison-of-commercial-and-synthetic-non-viral-vectors
#16
Hyosuk Kim, Dongkyu Kim, Sook Hee Ku, Kwangmeyung Kim, Sun Hwa Kim, Ick Chan Kwon
Technological advances opened up new ways of directing cell fate conversion from one cell lineage to another. The direct cell conversion technique has recently attracted much attention in regenerative medicine to treat devastated organs and tissues, particularly having limited regenerative capacity such as the heart and brain. Unfortunately, its clinical application is severely limited due to a safety concern and immunogenicity of viral vectors, as human gene therapy did in the beginning stages. In this study, we examined the possibility of adopting non-viral vectors to direct cell conversion from mouse embryonic fibroblasts to induced cardiomyocytes (iCM) by transient transfection of four types of chemically synthesized micro-RNA mimics (miRNA-1, 133, 208, and 499)...
February 16, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28273212/role-of-micrornas-in-the-treatment-of-type-2-diabetes-mellitus-with-roux-en-y-gastric-bypass
#17
Z Zhu, J Yin, D C Li, Z Q Mao
The aim of this study was to investigate the effect of Roux-en-Y gastric bypass (RYGB) on the peripheral blood microRNAs (miRNAs) of patients with type 2 diabetes mellitus (T2DM). miRNAs are small 20- to 22-nucleotide (nt) noncoding RNAs. They constitute a novel class of gene regulators that negatively regulate gene expression at the post-transcriptional level. miRNAs play an important role in several biological processes. Twelve patients with T2DM who were scheduled to undergo laparoscopic RYGB surgery were separated into two groups, using a body mass index of 30 kg/m2 as a cut-off point...
March 2, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28272430/identification-and-characterization-of-differentially-expressed-mirnas-in-subcutaneous-adipose-between-wagyu-and-holstein-cattle
#18
Yuntao Guo, Xiuxiu Zhang, Wanlong Huang, Xiangyang Miao
MicroRNAs (miRNAs) are important post-transcriptional regulators involved in animal adipogenesis, however, their roles in bovine fat deposition remain poorly understood. In the present study, we conducted a comparative RNA sequencing to identify the key miRNAs involved in beef lipid accumulation by comparing the backfat small RNA samples between Wagyu (high intramuscular fat) and Holstein (moderate intramuscular fat) cattle. Fifteen miRNAs such as bta-miR-142-3p, bta-miR-379, bta-miR-196a, bta-miR-196b, bta-miR-30f and bta-miR-2887 were identified to have a higher expression level in Wagyu cattle compared with Holstein, whereas bta-miR-320a, bta-miR-874 and bta-miR-1247-3p had a lower expression level in Wagyu...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28264477/a-systematic-study-of-dysregulated-microrna-in-type-2-diabetes-mellitus
#19
Yuqing He, Yuanlin Ding, Biyu Liang, Juanjuan Lin, Taek-Kyun Kim, Haibing Yu, Hanwei Hang, Kai Wang
MicroRNAs (miRNAs) are small noncoding RNAs that modulate the cellular transcriptome at the post-transcriptional level. miRNA plays important roles in different disease manifestation, including type 2 diabetes mellitus (T2DM). Many studies have characterized the changes of miRNAs in T2DM, a complex systematic disease; however, few studies have integrated these findings and explored the functional effects of the dysregulated miRNAs identified. To investigate the involvement of miRNAs in T2DM, we obtained and analyzed all relevant studies published prior to 18 October 2016 from various literature databases...
February 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28256706/analysis-of-extracellular-vesicles-produced-in-the-biofilm-by-the-dimorphic-yeast-pichia-fermentans
#20
Federica Leone, Lorenza Bellani, Simonetta Mucciflora, Lucia Giorgetti, Paolo Bongioanni, Marcella Simili, B E Maserti, Renata Del Carratore
The yeast Pichia fermentans DISAABA 726 strain (P. fermentans) is a dimorphic yeast that under different environmental conditions may switch from a yeast-like to pseudohyphal morphology. We hypothesize that exosomes-like vesicles (EV) could mediate this rapid modification. As EV are membrane-derived vesicles carrying lipids, proteins, mRNAs and microRNAs and have been recognized as important mediators of intercellular communication. Although it has been assumed for a long time that fungi release EV, knowledge of their functions is still limited...
March 3, 2017: Journal of Cellular Physiology
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