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https://www.readbyqxmd.com/read/27911265/mirna-543-promotes-osteosarcoma-cell-proliferation-and-glycolysis-by-partially-suppressing-prmt9-and-stabilizing-hif-1%C3%AE-protein
#1
Heng Zhang, Xiaofeng Guo, Xing Feng, Tingting Wang, Zhaohua Hu, Xiangyong Que, Qingsong Tian, Tianbo Zhu, Guixian Guo, Wei Huang, Xinzhi Li
Osteosarcoma (OS) is the most common primary bone tumor, occurring frequently in adolescents and possessing a high malignant severity. MicroRNAs play critical roles during OS development. Thus, elucidation of the involvement of specific microRNAs in the development of OS may provide novel therapeutic targets for OS treatment. Here, we showed that in the OS specimens from patients, the levels of miR-543 were significantly increased whereas the levels of PRMT9 were significantly decreased, compared to the paired normal bone tissue...
November 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/27910957/mir-27a-attenuates-adipogenesis-and-promotes-osteogenesis-in-steroid-induced-rat-bmscs-by-targeting-ppar%C3%AE-and-grem1
#2
Chenxi Gu, Yan Xu, Shanfeng Zhang, Hongya Guan, Shi Song, Xiuli Wang, Yisheng Wang, Yuebai Li, Guoqiang Zhao
The imbalance between adipogenic and osteogenic differentiation in bone marrow mesenchymal stem cells (BMSCs) plays a significant role in the pathogenesis of steroid-induced osteonecrosis of the femoral head (ONFH). Several microRNAs (miRNAs) are involved in regulating adipogenesis and osteogenesis. In this study, we established a steroid-induced ONFH rat model to identify the potential relevant miRNAs. We identified 9 up-regulated and 28 down-regulated miRNAs in the ONFH rat model. Of these, miR-27a was down-regulated and negatively correlated with peroxisome proliferator-activated receptor gamma (PPARγ) and gremlin 1 (GREM1) expression...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27908889/microrna-146a-induces-lineage-negative-bone-marrow-cell-apoptosis-and-senescence-by-targeting-polo-like-kinase-2-expression
#3
Shanming Deng, Huilan Wang, Chunling Jia, Shoukang Zhu, Xianming Chu, Qi Ma, Jianqin Wei, Emily Chen, Wei Zhu, Conrad J Macon, Dushyantha T Jayaweera, Derek M Dykxhoorn, Chunming Dong
OBJECTIVE: Lineage-negative bone marrow cells (lin- BMCs) are enriched in endothelial progenitor cells and mediate vascular repair. Aging-associated senescence and apoptosis result in reduced number and functionality of lin- BMCs, impairing their prorepair capacity. The molecular mechanisms underlying lin- BMC senescence and apoptosis are poorly understood. MicroRNAs (miRNAs) regulate many important biological processes. The identification of miRNA-mRNA networks that modulate the health and functionality of lin- BMCs is a critical step in understanding the process of vascular repair...
December 1, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27905554/increased-plasma-vegf-levels-following-ischemic-preconditioning-are-associated-with-downregulation-of-mirna-762-and-mir-3072-5p
#4
Koji Ueno, Makoto Samura, Tamami Nakamura, Yuya Tanaka, Yuriko Takeuchi, Daichi Kawamura, Masaya Takahashi, Tohru Hosoyama, Noriyasu Morikage, Kimikazu Hamano
Ischemic preconditioning (IPC) has protective effects against ischemia-perfusion injury of organs. In the present study, we investigated the associated mechanisms after performing remote IPC (rIPC) of lower limbs by clamping abdominal aorta in mice. Subsequent experiments showed decreased damage and paralysis of lower limbs following spinal cord injury (SCI). Concomitantly, plasma vascular endothelial growth factor (VEGF) levels were increased 24 h after rIPC compared with those in sham-operated animals. In subsequent microRNA analyses, thirteen microRNAs were downregulated in exosomes 24 h after rIPC...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27904930/micrornas-in-bone-diseases
#5
REVIEW
L Gennari, S Bianciardi, D Merlotti
MicroRNAs are small, noncoding single-stranded RNAs that have emerged as important posttranscriptional regulators of gene expression, with an essential role in vertebrate development and different biological processes. This review highlights the recent advances in the function of miRNAs and their roles in bone remodeling and bone diseases. MicroRNAs (miRNAs) are a class of small (∼22 nt), noncoding single-stranded RNAs that have emerged as important posttranscriptional regulators of gene expression. They are essential for vertebrate development and play critical roles in different biological processes related to cell differentiation, activity, metabolism, and apoptosis...
November 30, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27899984/increased-expression-of-microrna-148a-in-osteosarcoma-promotes-cancer-cell-growth-by-targeting-pten
#6
Hao Zhang, Yang Wang, Tianming Xu, Chen Li, Jiang Wu, Qianyun He, Guangchao Wang, Chen Ding, Kang Liu, Hao Tang, Fang Ji
Osteosarcoma is the most common type of primary malignant bone tumor, and deregulated microRNAs (miRNAs or miRs) in osteosarcoma have attracted great attention. In the present study, through miRNA microarray analysis, it was identified that miR-148a expression was significantly increased in osteosarcoma tissues. Increased miR-148a expression was significantly correlated with tumor progression and prognosis. Furthermore, increased miR-148a expression could promote osteosarcoma growth in vitro and in vivo, and the tumor-promoting effect was due to enhanced activation of the phosphoinositide 3-kinase signaling pathway caused by miR-148a-mediated inhibition of phosphatase and tensin homolog expression...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893432/microrna-34a-expression-levels-in-serum-and-intratumoral-tissue-can-predict-bone-metastasis-in-patients-with-hepatocellular-carcinoma
#7
Zuo-Lin Xiang, Xiao-Mei Zhao, Li Zhang, Ping Yang, Jia Fan, Zhao-You Tang, Zhao-Chong Zeng
Hepatocellular carcinoma (HCC) patients with bone metastasis (BM) suffer from pain and other symptoms that significantly reduce their quality of life. We screened a microRNA (miRNA) microarray to identify potential serum biomarkers for BM in HCC patients. A miRNA microarray was used to screen for BM-related miRNAs in paired serum samples from HCC patients with BM and from HCC patients without BM. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to quantify candidate miRNAs in serum samples from 106 independent HCC patients...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27888003/small-non-coding-rnas-based-bone-regulation-and-targeting-therapeutic-strategies
#8
Ying Yang, Sijie Fang
Small non-coding RNAs, which are 20-25 nucleotide ribonucleic acids, have emerged as an important transformation in the biological evolution over almost three decades. microRNAs (miRNAs) and short interfering RNAs (siRNAs) are two significant categories of the small RNAs that exert important effects on bone endocrinology and skeletology. Therefore, clarifying the expression and function of these important molecules in bone endocrine physiology and pathology is of great significance for improving their potential therapeutic value for metabolism-associated bone diseases...
November 22, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27881579/a-mirnas-dnmt1-axis-is-involved-in-azacitidine-resistance-and-predicts-survival-in-higher-risk-myelodysplastic-syndrome-and-low-blast-count-acute-myeloid-leukemia
#9
Françoise Solly, Catherine Koering, Aminetou Mint-Mohamed, Delphinne Maucort-Boulch, Guillaume Robert, Patrick Auberger, Pascale Flandrin-Gresta, Lionel Ades, Pierre Fenaux, Olivier Kosmider, Emmanuelle Tavernier-Tardy, Jerome Cornillon, Denis Guyotat, Lydia Lydia Campos, Franck Mortreux, Eric Wattel
PURPOSE: Azacitidine (AZA) inhibits DNA methyltransferases, including DNMT1, and is currently the standard of care for patients with higher risk myelodysplastic syndrome (HRMDS) or low blast count AML (AML). EXPERIMENTAL DESIGN: The expression of 754 microRNAs (miRNAs) was compared in AZA-resistant and AZA-sensitive MDS cells. We investigated the role of differentially expressed miRNAs on DNMT1 expression and AZA-resistance in vitro. We next evaluated anti-DNMT1 miRNAs expression in pretreatment bone marrow samples deriving from 75 patients treated with AZA for HRMDS or AML...
November 23, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27871116/glucocorticoid-signaling-and-bone-biology
#10
T Komori
Since glucocorticoids remain an effective therapeutic option for the treatment of many inflammatory and autoimmune diseases, glucocorticoid-induced osteoporosis is the most common form of secondary osteoporosis. Fractures may occur in as many as 30-50% of patients receiving chronic glucocorticoid therapy. Under physiological conditions, glucocorticoids are required for normal bone development due to their regulation of osteoblast differentiation, possibly via the Wnt/β-catenin pathway and TSC22D3. However, serum levels of endogenous corticosterone are elevated in aged mice and glucocorticoids exert negative effects on the survival of osteoblasts and osteocytes as well as angiogenesis...
November 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27866993/micrornas-223-3p-and-93-5p-in-patients-with-chronic-kidney-disease-before-and-after-renal-transplantation
#11
M Ulbing, A H Kirsch, B Leber, S Lemesch, J Münzker, N Schweighofer, D Hofer, O Trummer, A R Rosenkranz, H Müller, K Eller, V Stadlbauer, B Obermayer-Pietsch
Chronic kidney disease (CKD) is associated with a multifactorial dysregulation of bone and vascular calcification and closely linked to increased cardiovascular mortality and concomitant bone disease. We aimed to investigate specific microRNA (miRNA) signatures in CKD patients to find indicators for vascular calcification and/or bone mineralization changes during CKD and after kidney transplantation (KT). A miRNA array was used to investigate serum miRNA profiles in CKD patients, then selected miRNAs were quantified in a validation cohort comprising 73 patients in CKD stages 3 to 5, 67 CKD patients after KT, and 36 healthy controls...
November 17, 2016: Bone
https://www.readbyqxmd.com/read/27862699/microrna-503-5p-inhibits-stretch-induced-osteogenic-differentiation-and-bone-formation
#12
Lu Liu, Mengjun Liu, Rongrong Li, Hong Liu, Liling Du, Hong Chen, Yan Zhang, Shijie Zhang, Dongxu Liu
Cyclical stretch-induced bone formation during orthodontic treatment is a complex biological process modulated by various factors including miRNAs and their targeted-gene network. However, the miRNA expression profile and their roles in osteogenic differentiation of bone mesenchymal stem cells (BMSCs) exposed to mechanical stretch remains unclear. Here, we use the miRNA microarray assay to screen for mechano-sensitive miRNAs during stretch-induced osteogenic differentiation of BMSCs and identified that nine miRNAs were differentially expressed between stretched and control BMSCs...
November 11, 2016: Cell Biology International
https://www.readbyqxmd.com/read/27852979/expansion-induced-microrna-changes-in-bone-marrow-mesenchymal-stromal-cells-reveals-interplay-between-immune-regulation-and-cell-cycle
#13
Lotta Kilpinen, Amarjit Parmar, Dario Greco, Matti Korhonen, Petri Lehenkari, Päivi Saavalainen, Saara Laitinen
Mesenchymal stromal cells (MSC) are currently used in many cell based therapies. Prior to use in therapy, extensive expansion is required. We used microarray profiling to investigate expansion induced miRNA and mRNA expression changes of bone marrow MSCs (BM-MSCs) derived from old and young donors. The expression levels of 36 miRNAs were altered in cells derived from the old and respectively 39 miRNAs were altered in cells derived from young donors. Of these, only 12 were differentially expressed in both young and old donor BM-MSCs, and their predicted target mRNAs, were mainly linked to cell proliferation and senescence...
November 9, 2016: Aging
https://www.readbyqxmd.com/read/27852052/micrornas-for-osteosarcoma-in-the-mouse-a-meta-analysis
#14
REVIEW
Junli Chang, Min Yao, Yimian Li, Dongfeng Zhao, Shaopu Hu, Xuejun Cui, Gang Liu, Qi Shi, Yongjun Wang, Yanping Yang
Osteosarcoma (OS) is the most common primary malignant bone carcinoma with high morbidity that happens mainly in children and young adults. As the key components of gene-regulatory networks, microRNAs (miRNAs) control many critical pathophysiological processes, including initiation and progression of cancers. The objective of this study is to summarize and evaluate the potential of miRNAs as targets for prevention and treatment of OS in mouse models, and to explore the methodological quality of current studies...
November 12, 2016: Oncotarget
https://www.readbyqxmd.com/read/27848246/mir-2861-is-involved-in-osteogenic-commitment-of-human-periodontal-ligament-stem-cells-grown-onto-3d-scaffold
#15
F Diomede, I Merciaro, S Martinotti, M 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...
November 16, 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/27845386/mir-101-targets-the-ezh2-wnt-%C3%AE-catenin-the-pathway-to-promote-the-osteogenic-differentiation-of-human-bone-marrow-derived-mesenchymal-stem-cells
#16
Hongrui Wang, Yake Meng, Quanjun Cui, Fujun Qin, Haisong Yang, Yu Chen, Yajun Cheng, Jiangang Shi, Yongfei Guo
Mounting evidence indicates that microRNAs (miRNAs) are involved in multiple processes of osteogenic differentiation. MicroRNA-101 (miR-101), identified as a tumor suppressor, has been implicated in the pathogenesis of several types of cancer. However, the expression of miR-101 and its roles in the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMSCs) remain unclear. We found that the miR-101 expression level was significantly increased during the osteogenic differentiation of hBMSCs...
November 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27812189/mesenchymal-stem-stromal-cells-under-stress-increase-osteosarcoma-migration-and-apoptosis-resistance-via-extracellular-vesicle-mediated-communication
#17
Krishna C Vallabhaneni, Meeves-Yoni Hassler, Anu Abraham, Jason Whitt, Yin-Yuan Mo, Azeddine Atfi, Radhika Pochampally
Studies have shown that mesenchymal stem/stromal cells (MSCs) from bone marrow are involved in the growth and metastasis of solid tumors but the mechanism remains unclear in osteosarcoma (OS). Previous studies have raised the possibility that OS cells may receive support from associated MSCs in the nutrient deprived core of the tumors through the release of supportive macromolecules and growth factors either in vesicular or non-vesicular forms. In the present study, we used stressed mesenchymal stem cells (SD-MSCs), control MSCs and OS cells to examine the hypothesis that tumor-associated MSCs in nutrient deprived core provide pro-proliferative, anti-apoptotic, and metastatic support to nearby tumor cells...
2016: PloS One
https://www.readbyqxmd.com/read/27801668/upregulation-of-mir-99a-is-associated-with-poor-prognosis-of-acute-myeloid-leukemia-and-promotes-myeloid-leukemia-cell-expansion
#18
Xiaohui Si, Xiaoyun Zhang, Xing Hao, Yunan Li, Zizhen Chen, Yahui Ding, Hui Shi, Jie Bai, Yingdai Gao, Tao Cheng, Feng-Chun Yang, Yuan Zhou
Leukemia stem cells (LSCs) can resist available treatments that results in disease progression and/or relapse. To dissect the microRNA (miRNA) expression signature of relapse in acute myeloid leukemia (AML), miRNA array analysis was performed using enriched LSCs from paired bone marrow samples of an AML patient at different disease stages. We identified that miR-99a was significantly upregulated in the LSCs obtained at relapse compared to the LSCs collected at the time of initial diagnosis. We also found that miR-99a was upregulated in LSCs compared to non-LSCs in a larger cohort of AML patients, and higher expression levels of miR-99a were significantly correlated with worse overall survival and event-free survival in these AML patients...
October 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27799147/silencing-of-microrna-138-5p-promotes-il-1%C3%AE-induced-cartilage-degradation-in-human-chondrocytes-by-targeting-foxc1-mir-138-promotes-cartilage-degradation
#19
Y Yuan, G Q Zhang, W Chai, M Ni, C Xu, J Y Chen
OBJECTIVES: Osteoarthritis (OA) is characterised by articular cartilage degradation. MicroRNAs (miRNAs) have been identified in the development of OA. The purpose of our study was to explore the functional role and underlying mechanism of miR-138-5p in interleukin-1 beta (IL-1β)-induced extracellular matrix (ECM) degradation of OA cartilage. MATERIALS AND METHODS: Human articular cartilage was obtained from patients with and without OA, and chondrocytes were isolated and stimulated by IL-1β...
October 2016: Bone & Joint Research
https://www.readbyqxmd.com/read/27787524/mir-203-inhibits-the-traumatic-heterotopic-ossification-by-targeting-runx2
#20
Bing Tu, Shen Liu, Bo Yu, Jing Zhu, Hongjiang Ruan, Tingting Tang, Cunyi Fan
Emerging evidence has indicated that dysregulated microRNAs (miRNAs) have an important role in bone formation. However, the pathophysiological role of miRNAs in traumatic heterotopic ossification (HO) remains to be elucidated. Using gene expression profile analyses and subsequent confirmation with real-time PCR assays, we identified the decreased expression of miRNA-203 (miR-203) and increased expression of Runx2 as responses to the development of traumatic HO. We found that miR-203 expression was markedly higher in primary and recurrent HO tissues than in normal bones...
October 27, 2016: Cell Death & Disease
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