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https://www.readbyqxmd.com/read/29351231/molecular-network-based-identification-of-competing-endogenous-rnas-in-thyroid-carcinoma
#1
Minjia Lu, Xingyu Xu, Baohang Xi, Qi Dai, Chenli Li, Li Su, Xiaonan Zhou, Min Tang, Yuhua Yao, Jialiang Yang
RNAs may act as competing endogenous RNAs (ceRNAs), a critical mechanism in determining gene expression regulations in many cancers. However, the roles of ceRNAs in thyroid carcinoma remains elusive. In this study, we have developed a novel pipeline called Molecular Network-based Identification of ceRNA (MNIceRNA) to identify ceRNAs in thyroid carcinoma. MNIceRNA first constructs micro RNA (miRNA)-messenger RNA (mRNA)long non-coding RNA (lncRNA) networks from miRcode database and weighted correlation network analysis (WGCNA), based on which to identify key drivers of differentially expressed RNAs between normal and tumor samples...
January 19, 2018: Genes
https://www.readbyqxmd.com/read/29350756/cytocompatibility-of-biodentine-and-iroot-fs-with-human-periodontal-ligament-cells-an-in-vitro-study
#2
T Luo, J Liu, Y Sun, Y Shen, L Zou
AIM: To evaluate the cytocompatibility of Biodentine and iRoot FS with human periodontal ligament cells (hPDLCs). METHODOLOGY: hPDLCs were characterized by flow cytometry and immunocytochemical analysis. hPDLC adhesion was assessed by scanning electron microscopy at day 3; proliferation by live/dead assay at day 1, 3 and 7; and osteogenic differentiation by alkaline phosphatase (ALP) activity staining, ALP quantification analysis and qRT-PCR at day 7 and 14. Data were analysed with ANOVA and independent sample t-tests with SPSS 21...
January 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29350343/syringic-acid-a-phenolic-acid-promotes-osteoblast-differentiation-by-stimulation-of-runx2-expression-and-targeting-of-smad7-by-mir-21-in-mouse-mesenchymal-stem-cells
#3
B Arumugam, K Balagangadharan, N Selvamurugan
Syringic acid (SA), a phenolic acid, has been used in Chinese and Indian medicine for treating diabetes but its role in osteogenesis has not yet been investigated. In the present study, at the molecular and cellular levels, we evaluated the effects of SA on osteoblast differentiation. At the cellular level, there was increased alkaline phosphatase (ALP) activity and calcium deposition by SA treatment in mouse mesenchymal stem cells (mMSCs). At the molecular level, SA treatment of these cells stimulated expression of Runx2, a bone transcription factor, and of osteoblast differentiation marker genes such as ALP, type I collagen, and osteocalcin...
January 19, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29350101/biomimetic-composite-scaffold-sis-mbg-exhibits-high-osteogenic-and-angiogenic-capacity
#4
Tingfang Sun, Man Liu, Sheng Yao, Yanhui Ji, Zekang Xiong, Kai Tang, Kaifang Chen, Hu Yang, Xiao-Dong Guo
Biomaterials with excellent osteogenic and angiogenic activities are desirable to repair massive bone defects. Decellularized matrix from porcine small intestinal submucosa (SIS) has attracted particular attention for tissue regeneration because it has strong angiogenic effects and retains plentiful bioactive components. However, it has inferior osteoinductivity and osteoconductivity. In this study, we developed porous composite of SIS combined with mesoporous bioactive glass (SIS/MBG) with the goal of improving the mechanical and biological properties...
January 19, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29348870/n%C3%AE%C2%B5-carboxymethyl-lysine-promotes-calcium-deposition-in-vsmcs-via-intracellular-oxidative-stress-induced-pdk4-activation-and-alters-glucose-metabolism
#5
Wen-Qi Ma, Xi-Qiong Han, Ying Wang, Xin Wang, Yi Zhu, Nai-Feng Liu
Diabetes and vascular calcification are intrinsically linked. We previously reported that advanced glycation end products (AGEs) accelerate calcium deposition in vascular smooth muscle cells (VSMCs) via excessive oxidative stress. However, the underlying mechanism remains poorly understood. Pyruvate dehydrogenase kinase 4 (PDK4) is an important mitochondrial matrix enzyme in cellular energy metabolism. Since hyperactivation of PDK4 has been reported in calcified vessels and in patients with diabetes mellitus, inhibition of PDK4 expression may be a strategy for the prevention of diabetic vascular calcification...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29342370/fgf8-signaling-alters-the-osteogenic-cell-fate-in-the-hard-palate
#6
J Xu, Z Huang, W Wang, X Tan, H Li, Y Zhang, W Tian, T Hu, Y P Chen
Fibroblast growth factor (FGF) signaling has been implicated in the regulation of osteogenesis in both intramembranous and endochondral ossifications. In the developing palate, the anterior bony palate forms by direct differentiation of cranial neural crest (CNC)-derived mesenchymal cells, but the signals that regulate the osteogenic cell fate in the developing palate remain unclear. In the present study, we investigated the potential role of FGF signaling in osteogenic fate determination of the palatal mesenchymal cells...
January 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29339399/ovariectomy-induced-bone-loss-in-tnf%C3%AE-and-il6-knockout-mice-is-regulated-by-different-mechanisms
#7
Siyi Zhu, Hongchen He, Chengfei Gao, Guojing Luo, Ying Xie, Haiming Wang, Li Tian, Chen Xiang, Yu Xijie, Chengqi He
Female wild-type (WT), TNFα knockout (TNFα-/-) or IL6 knockout (IL6-/-) mice aged 12 weeks were sham-operated (SHAM) or subjected to OVX and euthanized after 4 weeks. Bone mass and skeletal microarchitecture were determined using micro-CT. Bone marrow stromal cells (BMSCs) from all three groups were induced to differentiate into osteoblasts or osteoclasts. Bone metabolism was assessed by histological analysis and qRT-PCR. OVX significantly increased the body weight only in WT mice and decreased the uterine weight in all three genotypes...
January 16, 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29339189/magnetic-nanoparticles-modified-porous-scaffolds-for-bone-regeneration-and-photothermal-therapy-against-tumors
#8
Jia-Wei Lu, Fan Yang, Qin-Fei Ke, Xue-Tao Xie, Ya-Ping Guo
For effectively treating tumor related-bone defects, design and fabrication of multifunctional biomaterials still remain a great challenge. Herein, we firstly fabricated magnetic SrFe12O19 nanoparticles modified-mesoporous bioglass (BG)/chitosan (CS) porous scaffold (MBCS) with excellent bone regeneration and antitumor function. The as-produced magnetic field from MBCS promoted the expression levels of osteogenic-related genes (OCN, COL1, Runx2 and ALP) and the new bone regeneration by activated BMP-2/Smad/Runx2 pathway...
January 12, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29338713/lncrna-dancr-involved-osteolysis-after-total-hip-arthroplasty-by-regulating-foxo1-expression-to-inhibit-osteoblast-differentiation
#9
Zhenyu Tang, Zongming Gong, Xiaoliang Sun
BACKGROUND: Aseptic loosening of artificial hip joint is a major complication affecting the long-term use of the artificial hip joint, and is the main cause of joint replacement failure. However, the mechanism of aseptic loosening of THR has not yet cleared. The aim of this study was to investigate the underlying mechanism of DANCR in osteoblast differentiation (OD). METHODS: We detected the expressions of DANCR and FOXO1 in clinical samples and mesenchymal stem cells (MSCs) by qRT-PCR and western blotting...
January 16, 2018: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29337188/abrogation-of-fam20c-altered-cell-behaviors-and-bmp-signaling-of-immortalized-dental-mesenchymal-cells
#10
Chao Liu, Nan Zhou, Yu Wang, Hua Zhang, Priyam Jani, Xiaofang Wang, Yongbo Lu, Nan Li, Jing Xiao, Chunlin Qin
FAM20C mutations compromise the mineralization of skeleton and tooth in both human and mouse. Putatively, the mineralization disorder is attributed to the elevated fibroblast growth factor 23 (FGF23), which reduced the serum phosphorus by suppressing the reabsorption of phosphorus in kidney. Besides the regulation on systemic phosphorus homeostasis, FAM20C was also implicated to regulate cell behaviors and gene expression through a cell-autonomous manner. To identify the primary effects of Fam20c on dental mesenchymal cells, mouse Fam20c-deficient dental mesenchymal cells were generated by removing the floxed alleles from the immortalized mouse Fam20cf/f dental mesenchymal cells with Cre-expressing lentivirus...
January 11, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29331041/effect-of-low-level-laser-therapy-on-the-healing-of-sites-grafted-with-coagulum-deproteinized-bovine-bone-and-biphasic-ceramic-made-of-hydroxyapatite-and-%C3%AE-tricalcium-phosphate-in-vivo-study-in-rats
#11
Guilherme J P L de Oliveira, Maurício A T Aroni, Marcell C Medeiros, Elcio Marcantonio, Rosemary A C Marcantonio
OBJECTIVE: The aim of this study was to evaluate the effect of low-level laser therapy (LLLT) on the healing of biomaterial graft areas (i.e., coagulum, deproteinized bovine bone, and biphasic ceramics comprising hydroxyapatite and β-tricalcium phosphate). MATERIAL AND METHODS: Ninety rats were divided into two groups according to laser irradiation use (λ 808 nm, 100 mW, φ ∼600 μm, seven sessions with 28 J of irradiation dose in total): a laser group and a control group...
January 13, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29328471/prostaglandin-e2-receptor-ep4-is-involved-in-the-cell-growth-and-invasion-of-prostate-cancer-via-the-camp%C3%A2-pka-pi3k%C3%A2-akt-signaling-pathway
#12
Song Xu, Wenquan Zhou, Jingping Ge, Zhengyu Zhang
Prostate cancer (PCa) is one of the most prevalent diagnosed malignancies globally. Previous studies have demonstrated that prostaglandin E2 (PGE2) is closely associated with the tumorigenesis and progression of PCa. However, the underlying molecular mechanisms remain unclear and require further investigation. Matrix metalloproteinases (MMPs), receptor activator of nuclear factor‑κB ligand (RANKL) and runt‑related transcription factor 2 (RUNX2), which are involved in cell growth and bone metastasis, are frequently activated or overexpressed in various types of cancer, including PCa...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29327231/loading-of-the-condylar-cartilage-can-rescue-the-effects-of-botox-on-tmj
#13
Eliane H Dutra, Mara H O'Brien, Candice Logan, Aditya Tadinada, Ravindra Nanda, Sumit Yadav
The purpose of this study is to evaluate whether the effects of botulinum neurotoxin (botox) injection into the masseter in the mandibular condylar cartilage (MCC) and subchondral bone could be rescued by compressive loading of the temporomandibular joint (TMJ). Twenty-four 6-week-old female mice (C57BL/6J) were used. Mice were divided in three groups: (1) Botox (n = 8); (2) Botox plus loading (n = 8); (3) Pure control (n = 8). Bone labels (3 and 1 day before sacrifice) and the proliferation marker EdU (2 and 1 day before sacrifice) were intraperitoneally injected into all groups of mice...
January 11, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29325895/the-vertebrate-limb-an-evolving-complex-of-self-organizing-systems
#14
REVIEW
Stuart A Newman, Tilmann Glimm, Ramray Bhat
The paired appendages (fins or limbs) of jawed vertebrates contain an endoskeleton consisting of nodules, bars and, in some groups, plates of cartilage, or bone arising from replacement of cartilaginous templates. The generation of the endoskeletal elements occurs by processes involving production and diffusion of morphogens, with, variously, positive and negative feedback circuits, adhesion, and receptor dynamics with similarities to the mechanism for chemical pattern formation proposed by Alan Turing. This review presents a unified interpretation of the evolution and functioning of these mechanisms...
January 8, 2018: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/29325369/-cd137-signaling-promotes-the-formation-of-plaque-calcification-via-inhibiting-the-fusion-of-autophagy-and-lysosomal-in-apo-e-mice
#15
X Y Li, R Chen, W Zhong, B Li, C Shao, Z Q Wang, J C Yan
Objective: To investigate whether CD137 signaling promoted the formation of atherosclerotic plaque calcification by inhibiting the fusion of autophagosome and lysosome. Methods: (1) In vivo, CD137 agonist antibody and anti-CD137 antibody were used to stimulate and inhibit the CD137 signaling, respectively. Fifteen Apo E(-/-) mice were randomly divided into three groups: control group (intraperitoneal injection of IgG2b 200 µg) , CD137 agonist group (intraperitoneal injection of CD137 agonist antibody 200 µg) , anti-CD137 group (pretreatment with 200 µg anti-CD137 antibody for 24 hours, then injection of CD137 agonist antibody) ...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29325202/interfacial-mineral-fusion-and-tubule-entanglement-as-a-means-to-harden-a-bone-augmentation-material
#16
Erik A B Hughes, Sophie C Cox, Megan E Cooke, Owen G Davies, Richard L Williams, Thomas J Hall, Liam M Grover
A new bone augmenting material is reported, which is formed from calcium-loaded hydrogel-based spheres. On immersion of these spheres in a physiological medium, they become surrounded with a sheath of precipitate, which ruptures due to a build-up in osmotic pressure. This results in the formation of mineral tubes that protrude from the sphere surface. When brought into close contact with one another, these spheres become fused through the entanglement and subsequent interstitial mineralization of the mineral tubules...
January 11, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29323151/downregulation-of-heat-shock-protein-70-impairs-osteogenic-and-chondrogenic-differentiation-in-human-mesenchymal-stem-cells
#17
Chenghai Li, Kristifor Sunderic, Steven B Nicoll, Sihong Wang
Human mesenchymal stem cells (hMSCs) show promise for bone and cartilage regeneration. Our previous studies demonstrated that hMSCs with periodic mild heating had enhanced osteogenic and chondrogenic differentiation with significantly upregulated heat shock protein 70 (HSP70). However, the role of HSP70 in adult tissue regeneration is not well studied. Here, we revealed an essential regulatory mechanism of HSP70 in osteogenesis and chondrogenesis using adult hMSCs stably transfected with specific shRNAs to knockdown HSP70...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319174/chronic-high-glucose-and-insulin-stimulate-bone-marrow-stromal-cells-adipogenic-differentiation-in-young-spontaneously-hypertensive-rats
#18
Antonio Hernandes Chaves Neto, Victor Gustavo Balera Brito, Thamine Landim de Barros, Caril Constante Ferreira do Amaral, Dóris Hissako Sumida, Sandra Helena Penha Oliveira
We evaluated whether genetic predisposition is sufficient to induce changes due to chronic high glucose (HG; 25 mmol/L) in the presence or absence of insulin (HGI; 10 µg/mL) on osteogenic differentiation and markers in bone-marrow mesenchymal stem cells (BMSCs) from young Wistar (WBMSCs) and spontaneous hypertensive rats (SBMSCs) without hypertension. HG suppressed osteogenic differentiation in both the strains, observed by mineralization inhibition and decreased levels of the osteogenic markers Runx2, osterix, osteopontin, and bone sialoprotein, compared to osteogenic medium (OM) cells...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29319166/long-non-coding-rna-tcons_00041960-enhances-osteogenesis-and-inhibits-adipogenesis-of-rat-bone-marrow-mesenchymal-stem-cell-by-targeting-mir-204-5p-and-mir-125a-3p
#19
Guowei Shang, Yadong Wang, Yan Xu, Shanfeng Zhang, Xiaoya Sun, Hongya Guan, Xuefeng Zhao, Yisheng Wang, Yuebai Li, Guoqiang Zhao
A growing number of long non-coding RNAs (lncRNAs) have been found to be involved in diverse biological processes such as cell cycle regulation, embryonic development, and cell differentiation. However, limited knowledge is available concerning the underlying mechanisms of lncRNA functions. In this study, we found down-regulation of TCONS_00041960 during adipogenic and osteogenic differentiation of glucocorticoid-treated bone marrow mesenchymal stem cells (BMSCs). Furthermore, up-regulation of TCONS_00041960 promoted expression of osteogenic genes Runx2, osterix, and osteocalcin, and anti-adipogenic gene glucocorticoid-induced leucine zipper (GILZ)...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29316874/liposomal-delivery-of-demineralised-dentine-matrix-for-dental-tissue-regeneration
#20
Genevieve Elizabeth Melling, John Colombo, Steven J Avery, Wayne Ayre, Samuel L Evans, Rachel Jane Waddington, Alastair James Sloan
Current dental restorations have short longevity, consequently there is a need for novel tissue engineering strategies that aim to regenerate the dentine-pulp complex. Dentine matrix contains a myriad of bioactive growth factors and extracellular matrix proteins associated with the recruitment, proliferation and differentiation of dental pulp progenitor cells. Here, we show that demineralised dentine matrix (DDM), from non-carious dentine, can be encapsulated into liposomes for delivery to dental tissue to promote regeneration...
January 9, 2018: Tissue Engineering. Part A
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