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https://www.readbyqxmd.com/read/28810613/mir-127-5p-promotes-chondrogenic-differentiation-in-rat-bone-marrow-mesenchymal-stem-cells
#1
Zhaolong Xue, Yanli Meng, Jianhua Ge
The effect and related mechanisms of miR-127-5p on the cartilage differentiation of rat bone marrow mesenchymal stem cells (BMSCs) was investigated. Rat BMSCs were generated and transfected with miR-127-5p, RT-PCR and Safranin O staining were used to detect the effect of miR-127-5p on the cartilage differentiation of rat BMSCs. Western blot analysis was used to detect the related mechanisms of miR-127-5p on the cartilage differentiation of rat BMSCs. Genes related to cartilage differentiation such as Sox9, collagen II and aggrecan were significantly increased in the group which were transfected with miR-127-5p, while collagen X, which was related to cartilage hypertrophy, was decreased in the miR-127-5p transfected group...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808676/efficacy-and-safety-of-doubly-regulated-vaccinia-virus-in-a-mouse-xenograft-model-of-multiple-myeloma
#2
Muneyoshi Futami, Kota Sato, Kanji Miyazaki, Kenshi Suzuki, Takafumi Nakamura, Arinobu Tojo
Multiple myeloma is a malignancy of plasma cells of the bone marrow. Although the prognosis is variable, no curative therapy has been defined. Vaccinia virus infects cancer cells and kills such cells in a variety of ways. These include direct infection, triggering of immunomediated cell death, and vascular collapse. The potential of the vaccinia virus as an anti-tumor therapy has attracted the attention of oncologists. Interestingly, our preliminary experiments revealed that myeloma cells were particularly susceptible to vaccinia virus...
September 15, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28800721/microrna-expression-in-bone-marrow-derived-human-multipotent-stromal-cells
#3
Ian H Bellayr, Abhinav Kumar, Raj K Puri
BACKGROUND: Multipotent stromal cells (MSCs) are being studied in the field of regenerative medicine for their multi-lineage differentiation and immunoregulatory capacity. MicroRNAs (miRNAs) are short non-coding RNAs that are responsible for regulating gene expression by targeting transcripts, which can impact MSC functions such as cellular proliferation, differentiation, migration and cell death. miRNAs are expressed in MSCs; however, the impact of miRNAs on cellular functions and donor variability is not well understood...
August 11, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28797104/increased-microrna-93-5p-inhibits-osteogenic-differentiation-by-targeting-bone-morphogenetic-protein-2
#4
Ying Zhang, Qiu-Shi Wei, Wei-Bin Ding, Lei-Lei Zhang, Hui-Chao Wang, Ying-Jie Zhu, Wei He, Yu-Na Chai, You-Wen Liu
BACKGROUND AND PURPOSE: Trauma-induced osteonecrosis of the femoral head (TIONFH) is a major complication of femoral neck fractures. Degeneration and necrosis of subchondral bone can cause collapse, which results in hip joint dysfunction in patients. The destruction of bone metabolism homeostasis is an important factor for osteonecrosis. MicroRNAs (miRNAs) have an important role in regulating osteogenic differentiation, but the mechanisms underlying abnormal bone metabolism of TIONFH are poorly understood...
2017: PloS One
https://www.readbyqxmd.com/read/28795526/coupling-factors-and-exosomal-packaging-micrornas-involved-in-the-regulation-of-bone-remodelling
#5
Sipin Zhu, Felix Yao, Heng Qiu, Ge Zhang, Huazi Xu, Jiake Xu
Bone remodelling is a continuous process by which bone resorption by osteoclasts is followed by bone formation by osteoblasts to maintain skeletal homeostasis. These two forces must be tightly coordinated not only quantitatively, but also in time and space, and its malfunction leads to diseases such as osteoporosis. Recent research focusing on the cross-talk and coupling mechanisms associated with the sequential recruitment of osteoblasts to areas where osteoclasts have removed bone matrix have identified a number of osteogenic factors produced by the osteoclasts themselves...
August 10, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28767056/mechanosensitive-mirnas-and-bone-formation
#6
REVIEW
Zhihao Chen, Yan Zhang, Chao Liang, Lei Chen, Ge Zhang, Airong Qian
Mechanical stimuli are required for the maintenance of skeletal integrity and bone mass. An increasing amount of evidence indicates that multiple regulators (e.g., hormone, cytoskeleton proteins and signaling pathways) are involved in the mechanical stimuli modulating the activities of osteogenic cells and the process of bone formation. Significantly, recent studies have showed that several microRNAs (miRNAs) were sensitive to various mechanical stimuli and played a crucial role in osteogenic differentiation and bone formation...
August 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28766139/extracellular-vesicle-mediated-bone-metabolism-in-the-bone-microenvironment
#7
REVIEW
Qi Li, Qiu-Ping Huang, Yi-Lin Wang, Qing-Sheng Huang
Extracellular vesicles (EVs) are phospholipid membrane-enclosed entities containing specific proteins, RNA, miRNA, and lncRNA. EVs are released by various cells and play a vital role in cell communication by transferring their contents from the host cells to the recipient cells. The role of EVs has been characterized in a wide range of physiological and pathophysiological processes. In this context, we highlight recent advances in our understanding of the regulatory effects of EVs, with a focus on bone metabolism and the bone microenvironment...
August 1, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28765961/upregulation-of-microrna-25-3p-inhibits-proliferation-migration-and-invasion-of-osteosarcoma-cells-in%C3%A2-vitro-by-directly-targeting-sox4
#8
Xiaolin Wu, Hongzhong Zhou, Bin Yue, Maohua Li, Fengxia Liu, Chensheng Qiu, Bohua Chen, Xuexiao Ma
Osteosarcoma (OS) is among the most common primary tumors of bone tissue, and occurs primarily in children and young adults. Despite the development of novel therapeutic approaches, the prognosis of OS remains poor. MicroRNAs (miRNAs) are involved in the development and progression of various types of human cancer and may have potential as novel therapeutic targets for cancer treatment. The present study aimed to investigate the expression and biological functions of miRNA‑25‑3p in OS, and explore the molecular mechanisms underlying its actions...
July 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28765882/microrna-300-decreases-cell-viability-inhibits-migration-and-promotes-apoptosis-of-osteosarcoma-cells-via-downregulation-of-twist1
#9
Jinpeng Jia, Pei Yin, Gang Han, Meng Xu, Wei Wang, Wenzhi Bi
Osteosarcoma (OS) is the most frequently occurring pediatric bone malignancy in the world. Numerous miRNAs have previously been demonstrated to participate in the initiation and development of OS. The present study aimed to reveal the role of microRNA‑300 (miR‑300) in OS cells and elucidate the underlying mechanism involved. The expression of miR‑300 in the MG63 human OS cell line was monitored via quantitative polymerase chain reaction (qPCR). Following transfection with miR‑300 mimic, miR‑300 inhibitor or scramble control, MG63 cell viability, migration and apoptosis were respectively measured by 3‑(4,5‑dimethyl‑2‑thiazolyl)‑2,5‑diphenyltetrazolium bromide (MTT), modified two‑chamber migration assay and flow cytometry...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28765881/identification-of-differentially-expressed-micrornas-in-knee-anterior-cruciate-ligament-tissues-surgically-removed-from-patients-with-osteoarthritis
#10
Bin Li, Lunhao Bai, Peng Shen, Yue Sun, Zhizuo Chen, Yu Wen
The degradation of cruciate ligaments is frequently observed in degenerative joint diseases, such as osteo-arthritis (OA). The present study aimed to identify the differentially expressed microRNAs (miRNAs or miRs) in knee anterior cruciate ligament (ACL) tissues derived from patients with OA and in health subjects (non-OA). By using Affymetrix miRNA 4.0 microarrays, a total of 22 miRNAs (including let-7f-5p, miR-26b-5p and miR-146a-5p) were found to be upregulated, while 17 (including miR-18a-3p, miR-138-5p and miR-485-3p) were downregulated in the osteoarthritic ACL tissues (fold change ≥2, P-value <0...
July 31, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28765042/mir-342-3p-elevates-osteogenic-differentiation-of-umbilical-cord-mesenchymal-stem-cells-via-inhibiting-sufu-in%C3%A2-vitro
#11
Mengqi Huang, Ying Qing, Qi Shi, Yingguang Cao, Ke Song
Human umbilical mesenchymal stem cells (UCMSCs) have been wildly used in tissue engineering field as a promising source because of their unlimited and noninvasive origin. To selectively induce osteogenic differentiation of UCMSCs, it's imperative to understand the regulatory molecular mechanism underlying the process of how these cells switch into osteogenic lineage path. We previously showed enhanced sonic hedgehog (Shh) signaling pathway upon osteogenic induction in mesenchymal stem cells. In this study, miRNA-seq analysis revealed substantial Shh-dependent expression of distinct miRNAs, including miR-342-3p, during ostogenesis...
July 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28755990/nf-%C3%AE%C2%BAb-mediated-mir-130a-modulation-in-lung-microvascular-cell-remodeling-implication-in-pulmonary-hypertension
#12
Li Li, Il-Kwon Kim, Valorie Chiasson, Piyali Chatterjee, Sudhiranjan Gupta
Pulmonary arterial hypertension (PAH) is a progressive pulmonary vascular disease which is associated with pulmonary arterial endothelial cells (PAEC) dysfunction and pulmonary arterial smooth muscle cells proliferation. Moreover, inflammation is contributing a critical role in EC dysfunction and remains elusive. Nuclear factor-kappa B (NF-κB) is a master transcriptional regulator in various cardiovascular pathologies; but, NF-κB's role in EC dysfunction in unknown. Our previous study using cardiac and lung specific IκBα mutant mice (3M and IKBM) showed that PAH induced right ventricular hypertrophy (RVH) was prevented in monocrotaline (MCT) treated 3M and IKBM mice, compared to the wild-type mice...
July 26, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28748390/mir-27b-3p-mir-181a-1-3p-and-mir-326-5p-are%C3%A2-involved-in-the-inhibition-of-macrophage-activation-in-chronic-liver-injury
#13
Weiyang Li, Na Chang, Lei Tian, Jingjing Yang, Xiaofang Ji, Jieshi Xie, Lin Yang, Liying Li
Macrophages are central players in inflammation, which leads to liver injury. It has been reported that continuous macrophage activation initiates this process. Our previous data show that the anti-inflammatory factor, 15-deoxy-Δ(12, 14)-prostaglandin J2 (15d-PGJ2), inhibits bone marrow (BM)-derived macrophage (BMM) migration and inflammatory cytokine production. However, the underlying mechanism of 15d-PGJ2 inhibited BMM activation is still unclear. Here, we evaluate the role of 15d-PGJ2/PPARγ axis in BMM activation...
July 26, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28741758/stem-cell-derived-exosomes-a-promising-strategy-for-fracture-healing
#14
REVIEW
Zi-Chen Hao, Jun Lu, Shan-Zheng Wang, Hao Wu, Yun-Tong Zhang, Shuo-Gui Xu
OBJECTIVES: To describe the biological characteristics of exosomes and to summarize the current status of stem cell-derived exosomes on fracture healing. Meanwhile, future challenges, limitations and perspectives are also discussed. METHODS: Search and analyze the related articles in pubmed database through the multi-combination of keywords like "stem cells","exosomes","bone regeneration" and "fracture healing". CONCLUSION: Stem cell-derived exosome therapy for fracture healing has been enjoying popularity and is drawing increasing attention...
July 25, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28739418/deficiency-of-dgcr8-increases-bone-formation-through-downregulation-of-mir-22-expression
#15
Young-Jin Choi, Sujin Jeong, Kyung-Ae Yoon, Hye-Jin Sung, Hye-Sim Cho, Dong Wook Kim, Je-Yoel Cho
MicroRNAs (miRNA) significantly contribute to bone formation by post-transcriptional regulation of gene expression. Mature miRNAs are generated following sequential cleavage by DROSHA/DGCR8 and DICER. However, recent studies have identified that some miRNAs require only one of these enzymes. Most studies seeking to clarify the role of miRNA during bone formation have been performed using DICER deletion strategies, but little is known regarding the role of DGCR8. To study the function of DGCR8 in osteogenesis, we generated mice in which Dgcr8 is conditionally deleted in osteoprogenitor cells by Col1a1-Cre...
July 21, 2017: Bone
https://www.readbyqxmd.com/read/28737222/bioinformatics-analysis-in-menopause-transition-promotes-distinct-modulation-in-calvaria-and-bone-marrow-osteoblastic-cells
#16
Chenyu Li, Yanfei Wang, Hong Luan, Hui Zhang, Yan Xu
We read with great interest the recent report by Semeghini et al., "Menopause transition promotes distinct modulation of mRNAs and miRNAs expression in calvaria and bone marrow osteoblastic cells," which appeared on 24 May 2017 in Cell Biology International. The results of the report are very helpful for us, however, from our perspective, the author's methods in bioinformatics analysis is inappropriate: Student's t-tests is an inappropriate statistical method for detecting differentially expressed mRNA or miRNA in osteoblastic cells from calvaria of ovariectomized rats compared to control or in osteoblastic cells from bone marrow of ovariectomized rats compared to control...
July 24, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28737023/monodispersed-bioactive-glass-nanoclusters-with-ultralarge-pores-and-intrinsic-exceptionally-high-mirna-loading-for-efficiently-enhancing-bone-regeneration
#17
Yumeng Xue, Yi Guo, Meng Yu, Min Wang, Peter X Ma, Bo Lei
Bioactive glass nanoparticles (BGNs) have attracted much attention in drug delivery and bone tissue regeneration, due to the advantages including biodegradation, high bone-bonding bioactivity, and facile large-scale fabrication. However, the wide biomedical applications of BGNs such as efficient gene delivery are limited due to their poor pore structure and easy aggregation. Herein, for the first time, this study reports novel monodispersed bioactive glass nanoclusters (BGNCs) with ultralarge mesopores (10-30 nm) and excellent miRNA delivery for accelerating critical-sized bone regeneration...
July 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28714003/microrna%C3%A2-130a-inhibits-growth-and-metastasis-of-osteosarcoma-cells-by-directly-targeting-zeb1
#18
Lankai Yi, Meixiu Liu, Zhiliang Tang
Osteosarcoma (OS) is the most common malignant bone tumor in children and adolescents. microRNAs (miRNAs) have previously been reported to be involved in the carcinogenesis and progression of OS, and may be useful prognostic markers or therapeutic targets for patients with OS. miRNA‑130a has been previously studied in multiple types of human cancer. However, its expression and function in OS has not been well documented. The aim of the present study was to investigate the expression, biological functions and molecular mechanisms underlying the effect of miR‑130a in OS...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713971/systematic-analysis-of-lncrnas-mirnas-and-mrnas-for-the-identification-of-biomarkers-for-osteoporosis-in-the-mandible-of-ovariectomized-mice
#19
Lingyu Hao, Jiayao Fu, Yawen Tian, Junhua Wu
Osteoporosis is a complex and multifactorial disease caused by an imbalance between bone formation and resorption. Post‑menopausal women with endogenous estrogen deficiency suffer from systemic bone loss and osteoporosis, and are at high risk of this affecting the jaw bones. MicroRNAs (miRNAs or miRs) have been implicated in the mechanisms of metabolic bone diseases and are expressed at differential levels in alveolar bone following ovariectomy. In the present study, we systematically analyzed the expression profiles of miRNAs, mRNAs and long non‑coding RNA (lncRNAs) in the mandible of ovariectomized (OVX) mice...
September 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28713950/microrna%C3%A2-302a-suppresses-cell-proliferation-migration-and-invasion-in-osteosarcoma-by-targeting-adam9
#20
Xiaoming Yang, Yan Cui, Fuqiang Yang, Chao Sun, Xuejian Gao
Osteosarcoma (OS) is the most frequent malignant primary bone tumor arising from primitive bone‑forming mesenchymal cells in children and adolescents. The dysregulation of microRNAs (miRNAs) has been reported in OS, and these aberrantly expressed miRNAs are involved in the initiation and progression of OS. The aim of the present study was to investigate the expression and functions of miRNA‑302a (miR‑302a) in OS and its underlying mechanism. It was found that the expression of miR‑302a was reduced in OS tissues and cell lines...
September 2017: Molecular Medicine Reports
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