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https://www.readbyqxmd.com/read/28101191/microrna-212-suppresses-the-proliferation-and-migration-of-osteosarcoma-cells-by-targeting-forkhead-box-protein-a1
#1
Jian Liu, Bohua Chen, Bin Yue, Junde Yang
MicroRNAs (miRNAs) are a class of small non-coding RNAs that function as critical gene regulators by targeting the 3' untranslated region (UTR) of mRNA, causing translational repression or mRNA degradation. Deregulation of specific miRNAs, including miR-212, has been identified in patients with osteosarcoma. However, the underlying mechanism is yet to be fully elucidated. The present study aimed to reveal the regulatory mechanism of miR-212 in osteosarcoma cell viability and migration. Quantitative polymerase chain reaction data revealed that miR-212 was significantly downregulated in osteosarcoma tissues compared with normal bone tissues...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101188/mir-125a-3p-targetedly-regulates-git1-expression-to-inhibit-osteoblastic-proliferation-and-differentiation
#2
Xiao-Mei Tu, Yang-Lin Gu, Guo-Qin Ren
Osteoblasts are a prerequisite for osteogenesis and bone formation, and play a key role in metabolic balance, growth, development and wound repair. G protein-coupled receptor kinase interacting protein 1 (GIT1) and a series of miRNAs are known to have important effects in the growth and migration of osteoblasts, but little is known about micro RNAs (miRNAs) targeting GIT1. The present study found that miR-125a-3p has matching sites on GIT1. In the osteoblastic differentiation process of human bone marrow-derived mesenchymal stem cells (HMSCs), the expression of miR-125a-3p was suppressed compared with that in non-differentiating (HMSCs) while the expression of GIT1 showed a gradual and significant increase...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28096318/bone-marrow-mesenchymal-stem-cells-inhibit-dendritic-cells-differentiation-and-maturation-by-microrna-23b
#3
Jingguo Wu, Chengbo Ji, Qingwei Jia, Feifei Cao, Yong Li, Xishan Zhang, Lanping Wang
BACKGROUND AND AIMS: Research on regulation and its mechanism of bone marrow mesenchymal stem cells (BMSCs) on dendritic cells (DCs) which is the initiating factor in immune response has applicable clinical value. Although BMSCs have a significant regulatory effect on the maturation of DCs, its molecular mechanism is still unclear. METHODS: Isolation and culture of BMSCs and DCs, they were co-cultured in different proportions. Flow cytometry was used to detect the expression of DCs markers (CD83, CD11c)...
January 17, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28078846/mir-2861-is-involved-in-osteogenic-commitment-of-human-periodontal-ligament-stem-cells-grown-onto-3d-scaffold
#4
F Diomede, I Merciaro, S Martinotti, M F X B Cavalcanti, S Caputi, E Mazzon, O Trubiani
miR-2861 endorsing osteoblast differentiation through the overexpression of Runt-related transcription factor 2 (RUNX2) protein has been recently described. In this study we evaluated: the performance of living construct, composed by human Periodontal Ligament Stem Cells (hPDLSCs) and 3D scaffold (EXg), and the behaviour of miR-2861/RUNX2 expression pathway on the osteogenic commitment. Human PDLSCs were seeded with and without EXg scaffold and cultured under basal and osteogenic conditions. Morphological features, adhesiveness and differentiation abilities were analysed using scanning electron and confocal laser scanning microscopy...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28075448/microarray-analysis-of-circular-rna-expression-patterns-in-polarized-macrophages
#5
Yingying Zhang, Yao Zhang, Xueqin Li, Mengying Zhang, Kun Lv
Circular RNAs (circRNAs) are generated from diverse genomic locations and are a new player in the regulation of post-transcriptional gene expression. Recent studies have revealed that circRNAs play a crucial role in fine-tuning the level of microRNA (miRNA)-mediated regulation of gene expression by sequestering miRNAs. The interaction of circRNAs with disease-associated miRNAs suggests that circRNAs are important in the pathology of disease. However, the effects and roles of circRNAs in macrophage polarization have yet to be explored...
February 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28072866/the-regulatory-roles-of-microrna-in-effects-of-2-2-4-4-tetrabromodiphenyl-ether-bde47-on-the-transcriptome-of-zebrafish-larvae
#6
Jing Zhao, Ting Xu, Daqiang Yin, Bo Zhang, Jianfeng Bai
The developmental neurotoxicity caused by environmental pollutants has received great concern; however, there were still barely known about the underlying toxic mechanisms, especially the influence of varieties of regulatory factors such as microRNA (miRNA). A representative flame retardant, 2,2',4,4'-tetrabromodiphenyl ether (BDE47), was found to disrupt zebrafish development in visual perception and bone formation in previous study, thus here we investigated its effects on miRNA expression profiling of 6 days post fertilization (dpf) zebrafish larvae by deep sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/28071724/osteoclastic-mir-214-targets-traf3-to-contribute-to-osteolytic-bone-metastasis-of-breast-cancer
#7
Jin Liu, Defang Li, Lei Dang, Chao Liang, Baosheng Guo, Cheng Lu, Xiaojuan He, Hilda Y S Cheung, Bing He, Biao Liu, Fangfei Li, Jun Lu, Luyao Wang, Atik Badshah Shaikh, Feng Jiang, Changwei Lu, Songlin Peng, Zongkang Zhang, Bao-Ting Zhang, Xiaohua Pan, Lianbo Xiao, Aiping Lu, Ge Zhang
The role of osteoclastic miRNAs in regulating osteolytic bone metastasis (OBM) of breast cancer is still underexplored. Here, we examined the expression profiles of osteoclastogenic miRNAs in human bone specimens and identified that miR-214-3p was significantly upregulated in breast cancer patients with OBM. Consistently, we found increased miR-214-3p within osteoclasts, which was associated with the elevated bone resorption, during the development of OBM in human breast cancer xenografted nude mice (BCX). Furthermore, genetic ablation of osteoclastic miR-214-3p in nude mice prevent the development of OBM...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28069815/identification-and-characterization-of-mirna-differentially-expressed-in-macrophages-exposed-to-porphyromonas-gingivalis-infection
#8
Olivier Huck, Jacob Al-Hashemi, Laetitia Poidevin, Olivier Poch, Jean-Luc Davideau, Henri Tenenbaum, Salomon Amar
MicroRNAs (miRNAs) are short, non-coding RNAs involved in the regulation of several processes associated with inflammatory diseases and infection. Bacterial infection modulates miRNA expression to subvert any innate immune response. In this study, we analyzed bacterial modulation of miRNAs in bone-marrow-derived macrophages (BMMs), in which activity was induced by infection with Porphyromonas gingivalis (Pg) through a microarray analysis. Several miRNA expressions were modulated 3 hours post infection (at a MOI of 25)...
January 9, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28069547/overexpression-of-mir-92a-promotes-the-tumor-growth-of-osteosarcoma-by-suppressing-f-box-and-wd-repeat-containing-protein-7
#9
Xuesheng Jiang, Xiongfeng Li, Fengfeng Wu, Hongliang Gao, Guorong Wang, Hua Zheng, Huajun Wang, Jianyou Li, Chao Chen
MicroRNAs (miRNAs) have been reported to be critical players in osteosarcoma (OS). Among numerous cancer-related miRNAs, the expression level of miR-92a and its potential role in OS has not been investigated. Here, We showed that overexpression of miR-92a was identified in OS specimens and cells compared to normal bone tissues. The high level of miR-92a was correlated with high T classification and advanced clinical stages of OS patients. Notably, miR-92a highly expressing OS patients showed a notably reduced survival rate...
January 6, 2017: Gene
https://www.readbyqxmd.com/read/28068481/micrornas-and-periodontal-homeostasis
#10
X Luan, X Zhou, J Trombetta-eSilva, M Francis, A K Gaharwar, P Atsawasuwan, T G H Diekwisch
MicroRNAs (miRNAs) are a group of small RNAs that control gene expression in all aspects of eukaryotic life, primarily through RNA silencing mechanisms. The purpose of the present review is to introduce key miRNAs involved in periodontal homeostasis, summarize the mechanisms by which they affect downstream genes and tissues, and provide an introduction into the therapeutic potential of periodontal miRNAs. In general, miRNAs function synergistically to fine-tune the regulation of biological processes and to remove expression noise rather than by causing drastic changes in expression levels...
January 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28062497/increased-proangiogenic-activity-of-mobilized-cd34-progenitor-cells-of-patients-with-acute-st-segment-elevation-myocardial-infarction-role-of-differential-micro-rna-378-expression
#11
Christian Templin, Julia Volkmann, Maximilian Y Emmert, Pavani Mocharla, Maja Müller, Nicolle Kraenkel, Jelena R Ghadri, Martin Meyer, Beata Styp-Rekowska, Sylvie Briand, Roland Klingenberg, Milosz Jaguszewski, Christian M Matter, Valentin Djonov, Francois Mach, Stephan Windecker, Simon P Hoerstrup, Thomas Thum, Thomas F Lüscher, Ulf Landmesser
OBJECTIVE: Proangiogenic effects of mobilized bone marrow-derived stem/progenitor cells are essential for cardiac repair after myocardial infarction. Micro-RNAs (miRNA/miR) are key regulators of angiogenesis. We investigated the differential regulation of angio-miRs, that is, miRNAs regulating neovascularization, in mobilized CD34(+) progenitor cells obtained from patients with an acute ST-segment-elevation myocardial infarction (STEMI) as compared with those with stable coronary artery disease or healthy subjects...
December 29, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28061388/ancestral-benzo-a-pyrene-exposure-affects-bone-integrity-in-f3-adult-fish-oryzias-latipes
#12
Frauke Seemann, Chang-Bum Jeong, Ge Zhang, Miles Teng Wan, Baosheng Guo, Drew Ryan Peterson, Jae-Seong Lee, Doris Wai-Ting Au
Benzo[a]pyrene (BaP) at an environmentally relevant concentration (1μg/L) has previously been shown to affect bone development in a transgenerational manner in F3 medaka (Oryzias latipes) larvae (17dph). Here, we provide novel histomorphometric data demonstrating that the impaired bone formation at an early life stage is not recoverable and can result in a persistent transgenerational impairment of bone metabolism in F3 adult fish. A decrease in bone thickness and the occurrence of microcracks in ancestrally BaP-treated adult male fish (F3) were revealed by MicroCt measurement and histopathological analysis...
December 23, 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/28060730/prognostic-value-of-micrornas-in-osteosarcoma-a-meta-analysis
#13
Yun Hak Kim, Tae Sik Goh, Chi-Seung Lee, Sae Ock Oh, Jeung Il Kim, Seung Hyeon Jeung, Kyoungjune Pak
BACKGROUND: Osteosarcoma is the most common primary bone malignancy. We meta-analyzed the prognostic value of altered miRNAs in patients with osteosarcoma. METHODS: Sources from MEDLINE (from inception to August 2016) and EMBASE (from inception to August 2016) were searched. Studies of osteosarcoma with results of miRNA and studies that reported survival data were included and two authors performed the data extraction independently. Any discrepancies were resolved by a consensus...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28025541/mir-203-and-mir-320-regulate-bone-morphogenetic-protein-2-induced-osteoblast-differentiation-by-targeting-distal-less-homeobox-5-dlx5
#14
Navya Laxman, Hans Mallmin, Olle Nilsson, Andreas Kindmark
MicroRNAs (miRNAs) are a family of small, non-coding RNAs (17-24 nucleotides), which regulate gene expression either by the degradation of the target mRNAs or inhibiting the translation of genes. Recent studies have indicated that miRNA plays an important role in regulating osteoblast differentiation. In this study, we identified miR-203 and miR-320b as important miRNAs modulating osteoblast differentiation. We identified Dlx5 as potential common target by prediction algorithms and confirmed this by knock-down and over expression of the miRNAs and assessing Dlx5 at mRNA and protein levels and specificity was verified by luciferase reporter assays...
December 23, 2016: Genes
https://www.readbyqxmd.com/read/28008152/dysregulated-mir34a-diacylglycerol-kinase-%C3%AE-interaction-enhances-t-cell-activation-in-acquired-aplastic-anemia
#15
Yuan-Xin Sun, Hui Li, Qi Feng, Xin Li, Ying-Yi Yu, Li-Wei Zhou, Yan Gao, Guo-Sheng Li, Juan Ren, Chun-Hong Ma, Cheng-Jiang Gao, Jun Peng
Acquired aplastic anemia is an idiopathic paradigm of human bone marrow failure syndrome, which involves active destruction of hematopoietic stem cells and progenitors by cytotoxic T cells in the bone marrow. Aberrant expression of microRNAs in T cells has been shown to lead to development of certain autoimmune diseases. In the present study, we performed a microarray analysis of miRNA expression in bone marrow CD3+ T cells from patients with aplastic anemia and healthy controls. Overexpression of miR34a and underexpression of its target gene diacylglycerol kinase (DGK) ζ in bone marrow mononuclear cells were validated in 41 patients and associated with the severity of aplastic anemia...
December 20, 2016: Oncotarget
https://www.readbyqxmd.com/read/27999816/evidence-for-altered-canonical-wnt-signaling-in-the-trabecular-bone-of-elderly-postmenopausal-women-with-fragility-femoral-fracture
#16
Simona Bolamperti, Isabella Villa, Alice Spinello, Greta Manfredini, Emanuela Mrak, Umberto Mezzadri, Marco Ometti, Gianfranco Fraschini, Francesca Guidobono, Alessandro Rubinacci
Wnt signaling, a major regulator of bone formation and homeostasis, might be involved in the bone loss of osteoporotic patients and the consequent impaired response to fracture. Therefore we analyzed Wnt-related, osteogenic, and adipogenic genes in bone tissue of elderly postmenopausal women undergoing hip replacement for either femoral fracture or osteoarthritis. Bone specimens derived from the intertrochanteric region of the femurs of 25 women with fracture (F) and 29 with osteoarthritis without fracture (OA) were analyzed...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27990096/mir-125b-and-mir-100-are-predictive-biomarkers-of-response-to-induction-chemotherapy-in-osteosarcoma
#17
Daisuke Kubota, Nobuyoshi Kosaka, Tomohiro Fujiwara, Akihiko Yoshida, Yasuhito Arai, Zhiwei Qiao, Fumitaka Takeshita, Takahiro Ochiya, Akira Kawai, Tadashi Kondo
Osteosarcoma is the most common primary malignancy in bone. Patients who respond poorly to induction chemotherapy are at higher risk of adverse prognosis. The molecular basis for such poor prognosis remains unclear. We investigated miRNA expression in eight open biopsy samples to identify miRNAs predictive of response to induction chemotherapy and thus maybe used for risk stratification therapy. The samples were obtained from four patients with inferior necrosis (Huvos I/II) and four patients with superior necrosis (Huvos III/IV) following induction chemotherapy...
2016: Sarcoma
https://www.readbyqxmd.com/read/27981970/time-series-mirna-mrna-integrated-analysis-reveals-critical-mirnas-and-targets-in-macrophage-polarization
#18
Liangqun Lu, Sara McCurdy, Sijia Huang, Xun Zhu, Karolina Peplowska, Maarit Tiirikainen, William A Boisvert, Lana X Garmire
Polarization of macrophages is regulated through complex signaling networks. Correlating miRNA and mRNA expression over time after macrophage polarization has not yet been investigated. We used paired RNA-Seq and miRNA-Seq experiments to measure the mRNA and miRNA expression in bone marrow-derived macrophages over a time-series of 8 hours. Bioinformatics analysis identified 31 differentially expressed miRNAs between M1 and M2 polarized macrophages. The top 4 M1 miRNAs (miR-155-3p, miR-155-5p, miR-147-3p and miR-9-5p) and top 4 M2 miRNAs (miR-27a-5p, let-7c-1-3p, miR-23a-5p and miR-23b-5p) were validated by qPCR...
December 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27974246/micrornas-106b-and-222-improve-hyperglycemia-in-a-mouse-model-of-insulin-deficient-diabetes-via-pancreatic-%C3%AE-cell-proliferation
#19
Sohei Tsukita, Tetsuya Yamada, Kei Takahashi, Yuichiro Munakata, Shinichiro Hosaka, Hironobu Takahashi, Junhong Gao, Yuta Shirai, Shinjiro Kodama, Yoichiro Asai, Takashi Sugisawa, Yumiko Chiba, Keizo Kaneko, Kenji Uno, Shojiro Sawada, Junta Imai, Hideki Katagiri
Major symptoms of diabetes mellitus manifest, once pancreatic β-cell numbers have become inadequate. Although natural regeneration of β-cells after injury is very limited, bone marrow (BM) transplantation (BMT) promotes their regeneration through undetermined mechanism(s) involving inter-cellular (BM cell-to-β-cell) crosstalk. We found that two microRNAs (miRNAs) contribute to BMT-induced β-cell regeneration. Screening murine miRNAs in serum exosomes after BMT revealed 42 miRNAs to be increased. Two of these miRNAs (miR-106b-5p and miR-222-3p) were shown to be secreted by BM cells and increased in pancreatic islet cells after BMT...
February 2017: EBioMedicine
https://www.readbyqxmd.com/read/27958650/calmodulin-regulated-spectrin-associated-protein-1-mrna-is-directly-regulated-by-mir-126-in-primary-human-osteoblasts
#20
Sandra Strassburg, Nikita Nabar, Florian Lampert, Sebastian M Goerke, Dietmar Pfeifer, Günter Finkenzeller, G Björn Stark, Filip Simunovic
Vascularization is essential for bone development, fracture healing and bone tissue engineering. We have previously described that coculture of primary human osteoblasts (hOBs) and human umbilical vein endothelial cells (HUVECs) improves differentiation of both cell types. Investigating the role of microRNAs (miRNAs) in this system, we found that miR-126 is highly upregulated in hOBs following coculturing with HUVECs. In this study we performed miR-126 gain-of-function and loss-of-function experiments in hOBs followed by microarray analysis in order to identify targets of miR-126...
December 13, 2016: Journal of Cellular Biochemistry
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