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https://www.readbyqxmd.com/read/28087486/enhanced-articular-cartilage-by-human-mesenchymal-stem-cells-in-enzymatically-mediated-transiently-rgds-functionalized-collagen-mimetic-hydrogels
#1
Paresh A Parmar, Jean-Philippe St-Pierre, Lesley W Chow, Christopher D Spicer, Violet Stoichevska, Yong Y Peng, Jerome A Werkmeister, John A M Ramshaw, Molly M Stevens
: Recapitulation of the articular cartilage microenvironment for regenerative medicine applications faces significant challenges due to the complex and dynamic biochemical and biomechanical nature of native tissue. Towards the goal of biomaterial designs that enable the temporal presentation of bioactive sequences, recombinant bacterial collagens such as Streptococcal collagen-like 2 (Scl2) proteins can be employed to incorporate multiple specific bioactive and biodegradable peptide motifs into a single construct...
January 10, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28087378/new-scaffolds-encapsulating-tgf-%C3%AE-3-bmp-7-combinations-driving-strong-chondrogenic-differentiation
#2
Jose Crecente-Campo, Erea Borrajo, Anxo Vidal, Marcos Garcia-Fuentes
The regeneration of articular cartilage remains an unresolved question despite the current access to a variety of tissue scaffolds activated with growth factors relevant to this application. Further advances might result from combining more than one of these factors; here, we propose a scaffold composition optimized for the dual delivery of BMP-7 and TGF-β3, two proteins with described chondrogenic activity. First, we tested in a mesenchymal stem cell micromass culture with TGF-β3 whether the exposure to microspheres loaded with BMP-7 would improve cartilage formation...
January 10, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28076994/adapted-dexamethasone-delivery-polyethylene-oxide-and-poly-%C3%A9-caprolactone-construct-promote-mesenchymal-stem-cells-chondrogenesis
#3
Armaghan Ghiaee, Faeze Pournaqi, Saeid Vakilian, Abdolah Mohammadi-Sangcheshmeh, Abdolreza Ardeshirylajimi
Issues associated with tissue transplantation and shortage of donors has always been a concern, whereas tissue engineering has provided the hopeful opportunities. The aim of this study was to investigate the chondrogenic differentiation potential of mesenchymal stem cells (MSCs) in the presence of embedded Dexamethasone into electrospun Poly(ethyleneoxide) nanofibers composited with Poly(ɛ-caprolactone) nanofibers. Electrospun-fabricated scaffolds were characterized by SEM, tensile, contact angle, release profile, MTT assay, and chonderogenic differentiation of stem cells...
January 12, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28074389/cochlear-epithelial-of-dog-fetuses-a-new-source-of-multipotent-stem-cells
#4
Ana Carolina M Santos, Jéssica Borghesi, Lara Carolina Mario, Adriana Raquel A Anunciação, Andrea Maria Mess, Ana Claudia O Carreira, Phelipe O Favaron, Maria Angélica Miglino
Hearing loss caused by the damage of cochlea sensory cells or neurons is a common human disease, but also affects dogs and other animals. To test their progenitor nature as potential value for future therapies, we characterized cells derived from the cochlear epithelium in dog fetuses. In total, 8 fetuses of 35-40 days of gestation, derived from castration campaigns, were investigated. Cells were analysed by the MTT colorimetric assay and in regard to cell cycle, differentiation capacities, immunophenotypes and qPCR analysis...
January 10, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28073305/human-amniotic-mesenchymal-stromal-cells-as-favourable-source-for-cartilage-repair
#5
Emma Muinos-López, Tamara Hermida-Gómez, Isaac Fuentes-Boquete, Francisco Javier de Toro-Santos, Francisco J Blanco, Silvia María Díaz-Prado
INTRODUCTION: Localized trauma-derived breakdown of the hyaline articular cartilage may progress towards osteoarthritis, a degenerative condition characterized by total loss of articular cartilage and joint function. Tissue engineering technologies encompass several promising approaches with high therapeutic potential for the treatment of these focal defects. However, most of the research in tissue engineering is focused on potential materials and structural cues, while little attention is directed to the most appropriate source of cells endowing these materials...
January 10, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28071602/microgrooved-topographical-surface-directs-tenogenic-lineage-specific-differentiation-of-mouse-tendon-derived-stem-cells
#6
Yuan Shi, Kaili Zhou, Wenjie Zhang, Zhiyong Zhang, Guangdong Zhou, Yilin Cao, Wei Liu
Tendon derived stem cells (TDSCs) are the endogenous cell source for tenocyte turnover and tendon functional maintenance. They are also the important cell source for tendon engineering and regeneration. In addition, TDSCs also play an important role in tendinopathy via their non-tenogenic lineage differentiation. It has been well demonstrated that cell shape could determine mesenchymal stem cell (MSC) lineage differentiation. In this study, a parallel microgrooved polydimethylsiloxane (PDMS) membrane (10 µm groove width and 3 µm depth) was employed to investigate the role of cell elongation via this particular topographic surface in directing murine TDSC (mTDSC) lineage differentiation...
January 10, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28070037/-bm-mscs-from-wuzhishan-mini-pigs-delay-the-progress-of-renal-fibrosis-induced-by-chronic-kidney-disease-through-%C3%A2-autocrine-hepatocyte-growth-factor-in-vitro
#7
Yang Xiang, Jiale Long, Jiansheng Xing, Yuanhui Gao, Qing Cheng, Yong Cai, Zhenxiang Liu, Shufang Zhang, Lie Chen, Chao Yang, Zhiming Bai
To isolate bone marrow mesenchymal stem cells (BM-MSCs) and establish the model of chronic kidney disease (CKD) of Wuzhishan (WZS) mini-pig, and to study the repairment effect of BM-MSCs on CKD-induced renal fibrosis in vitro.
 Methods: Density gradient method was used to isolate and culture BM-MSCs. The cells were verified by morphology, phenotype, differentiation and so on. The left partial ureteral obstruction (LPUUO) was used to establish the CKD model, which was evaluated by B-ultrasound, single-photon emission computed tomography (SPECT), HE and Masson staining...
December 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28069589/analysis-of-the-fgfr2c342y-mouse-model-shows-condensation-defects-due-to-misregulation-of-sox9-expression-in-prechondrocytic-mesenchyme
#8
Emma Peskett, Samin Kumar, William Baird, Janhvi Jaiswal, Ming Li, Priyanca Patel, Jonathan A Britto, Erwin Pauws
Syndromic craniosynostosis caused by mutations in FGFR2 is characterised by developmental pathology in both endochondral and membranous skeletogenesis. Detailed phenotypic characterisation of features in the membranous calvarium, the endochondral cranial base and other structures in the axial and appendicular skeleton has not been performed at embryonic stages. We investigated bone development in the Crouzon mouse model (Fgfr2(C342Y)) at pre- and post-ossification stages to improve understanding of the underlying pathogenesis...
January 9, 2017: Biology Open
https://www.readbyqxmd.com/read/28060847/enhanced-chondrogenic-differentiation-of-human-umbilical-cord-wharton-s-jelly-derived-mesenchymal-stem-cells-by-gsk-3-inhibitors
#9
Prapot Tanthaisong, Sumeth Imsoonthornruksa, Apichart Ngernsoungnern, Piyada Ngernsoungnern, Mariena Ketudat-Cairns, Rangsun Parnpai
Articular cartilage is an avascular, alymphatic, and aneural system with very low regeneration potential because of its limited capacity for self-repair. Mesenchymal stem cells (MSCs) are the preferred choice for cell-based therapies. Glycogen synthase kinase 3 (GSK-3) inhibitors are compounds that can induce the Wnt signaling pathway, which is involved in chondrogenesis and cartilage development. Here, we investigated the influence of lithium chloride (LiCl) and SB216763 synergistically with TGF-β3 on chondrogenic differentiation in human mesenchymal stem cells derived from Wharton's jelly tissue (hWJ-MSCs)...
2017: PloS One
https://www.readbyqxmd.com/read/28059449/irx3-and-bmp2-regulate-mouse-mesenchymal-cell-chondrogenic-differentiation-in-both-a-sox9-dependent-and-independent-manner
#10
Yoshihiro Tamamura, Kenichi Katsube, Hisashi Mera, Maki Itokazu, Shigeyuki Wakitani
Sox9, a master regulator of cartilage development, controls the cell fate decision to differentiate from mesenchymal to chondrogenic cells. In addition, Sox9 regulates the proliferation and differentiation of chondrocytes, as well as the production of cartilage-specific proteoglycans. The existence of Sox9-independent mechanisms in cartilage development remains to be determined. Here, we attempted to identify genes involved in such putative mechanisms via microarray analysis using a mouse chondrogenic cell line, N1511...
January 6, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28043032/kaempferol-slows-intervertebral-disc-degeneration-by-modifying-lps-induced-osteogenesis-adipogenesis-imbalance-and-inflammation-response-in-bmscs
#11
Jun Zhu, Haoyu Tang, Zhenhua Zhang, Yong Zhang, Chengfeng Qiu, Ling Zhang, Pinge Huang, Feng Li
Intervertebral disc (IVD) degeneration is a common disease that represents a significant cause of socio-economic problems. Bone marrow-derived mesenchymal stem cells (BMSCs) are a potential autologous stem cell source for the nucleus pulposus regeneration. Kaempferol has been reported to exert protective effects against both osteoporosis and obesity. This study explored the effect of kaempferol on BMSCs differentiation and inflammation. The results demonstrated that kaempferol did not show any cytotoxicity at concentrations of 20, 60 and 100μM...
February 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28039148/gpx1-knockdown-suppresses-chondrogenic-differentiation-of-atdc5-cells-through-induction-of-reductive-stress
#12
Jidong Yan, Yuanxu Guo, Yao Fei, Rui Zhang, Yan Han, Shemin Lu
Glutathione peroxidase 1 (GPx1) is a selenium (Se)-containing protein and is induced in cartilage formation. GPx1 eliminates reactive oxygen species (ROS), which are required for chondrogenic induction. The physiological properties of GPx1 in cartilage and the redox mechanisms involved are not known. The effects of GPx1 on chondrogenic differentiation of ATDC5 cells were examined through short hairpin RNA-mediated gene silencing. The results demonstrated that GPx1 knockdown impaired gene expression of sex determining region Y-box 9, collagen II (Col II), and aggrecan...
December 29, 2016: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28038353/decellularized-adipose-tissue-microcarriers-as-a-dynamic-culture-platform-for-human-adipose-derived-stem-stromal-cell-expansion
#13
Claire Yu, Anna Kornmuller, Cody Brown, Todd Hoare, Lauren E Flynn
With the goal of designing a clinically-relevant expansion strategy for human adipose-derived stem/stromal cells (ASCs), methods were developed to synthesize porous microcarriers derived purely from human decellularized adipose tissue (DAT). An electrospraying approach was applied to generate spherical DAT microcarriers with an average diameter of 428 ± 41 μm, which were soft, compliant, and stable in long-term culture without chemical crosslinking. Human ASCs demonstrated enhanced proliferation on the DAT microcarriers relative to commercially-sourced Cultispher-S microcarriers within a spinner culture system over 1 month...
December 23, 2016: Biomaterials
https://www.readbyqxmd.com/read/28025887/influence-of-crosslinkers-on-the-in-vitro-chondrogenesis-of-mesenchymal-stem-cells-in-hyaluronic-acid-hydrogels
#14
Panita Maturavongsadit, Xiangdong Bi, Kamolrat Metavarayuth, Jittima Amie Luckanagul, Qian Wang
This study aims to investigate the effect of the structures of crosslinkers on the in vitro chondrogenic differentiation of bone mesenchymal stem cells (BMSCs) in hyaluronic acid (HA)-based hydrogels. The hydrogels were prepared by the covalent crosslinking of methacrylated HA with different types of thiol-tailored molecules, including dithiothreitol (DTT), 4-arm polyethylene glycol (PEG), and multi-arm polyamidoamine (PAMAM) dendrimer using thiol-ene "click" chemistry. The microstructure, mechanical properties, diffusivity and degradation rates of the resultant hydrogels were controlled by the structural feature of different crosslinkers...
December 27, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28025555/synthesis-biological-evaluation-and-docking-studies-of-a-novel-sulfonamido-based-gallate-as-pro-chondrogenic-agent-for-the-treatment-of-cartilage
#15
Xiao Lin, Ling Chai, Buming Liu, Hailan Chen, Li Zheng, Qin Liu, Cuiwu Lin
Gallic acid (GA) and its derivatives are anti-inflammatory agents and are reported to have potent effects on Osteoarthritis (OA) treatment. Nonetheless, it is generally accepted that the therapeutic effect and biocompatibility of GA is much weaker than its esters due to the high hydrophilicity. The therapeutic effect of GA on OA could be improved if certain structural modifications were made to increase its hydrophobicity. In this study, a novel sulfonamido-based gallate was synthesized by bonding sulfonamide with GA, and its biological evaluations on OA were investigated...
December 23, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28024600/chondrogenic-differentiation-of-atdc5-cells-under-the-influence-of-mg-and-mg-alloy-degradation
#16
Adela H Martinez Sanchez, Frank Feyerabend, Daniel Laipple, Regine Willumeit-Römer, Annelie Weinberg, Bérengère J C Luthringer
Biodegradable magnesium (Mg)-based materials are a potential alternative to permanent implants for application in children. Nevertheless effects of those materials on growth plate cartilage and chondrogenesis have not been previously evaluated. In vitro differentiation of ATDC5 cells was evaluated under the influence of pure Mg (PMg), Mg with 10wt% of gadolinium (Mg-10Gd) and Mg with 2wt% of silver (Mg-2Ag) degradation products (extracts) and direct cell culture on the materials. Gene expression showed an inhibitory effect on ATDC5 mineralization with the three extracts and a chondrogenic potential of Mg-10Gd...
March 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28018432/adipose-derived-mesenchymal-stem-cells-viability-and-differentiating-features-for-orthopaedic-reparative-applications-banking-of-adipose-tissue
#17
Ilaria Roato, Daniela Alotto, Dimas Carolina Belisario, Stefania Casarin, Mara Fumagalli, Irene Cambieri, Raimondo Piana, Maurizio Stella, Riccardo Ferracini, Carlotta Castagnoli
Osteoarthritis is characterized by loss of articular cartilage also due to reduced chondrogenic activity of mesenchymal stem cells (MSCs) from patients. Adipose tissue is an attractive source of MSCs (ATD-MSCs), representing an effective tool for reparative medicine, particularly for treatment of osteoarthritis, due to their chondrogenic and osteogenic differentiation capability. The treatment of symptomatic knee arthritis with ATD-MSCs proved effective with a single infusion, but multiple infusions could be also more efficacious...
2016: Stem Cells International
https://www.readbyqxmd.com/read/28012106/osteogenic-potential-of-the-transcription-factor-c-myb
#18
V Oralova, E Matalova, M Killinger, L Knopfova, J Smarda, M Buchtova
The transcription factor c-MYB is a well-known marker of undifferentiated cells such as haematopoietic cell precursors, but recently it has also been observed in differentiated cells that produce hard tissues. Our previous findings showed the presence of c-MYB in intramembranous bones and its involvement in the chondrogenic steps of endochondral ossification, where the up-regulation of early chondrogenic markers after c-myb overexpression was observed. Since we previously detected c-MYB in osteoblasts, we aimed to analyse the localisation of c-MYB during later stages of endochondral bone formation and address its function during bone matrix production...
December 24, 2016: Calcified Tissue International
https://www.readbyqxmd.com/read/28011632/a-developmental-transcriptomic-analysis-of-pax1-and-pax9-in-embryonic-intervertebral-disc-development
#19
V Sivakamasundari, Petra Kraus, Wenjie Sun, Xiaoming Hu, Siew Lan Lim, Shyam Prabhakar, Thomas Lufkin
Pax1 and Pax9 play redundant, synergistic functions in the patterning and differentiation of the sclerotomal cells that give rise to the vertebral bodies and intervertebral discs (IVD) of the axial skeleton. They are conserved in mice and humans, whereby mutations/deficiency of human PAX1/PAX9 have been associated with kyphoscoliosis. By combining cell-type specific transcriptome and ChIP-sequencing data, we identified the roles of Pax1/Pax9 in cell proliferation, cartilage development and collagen fibrillogenesis, which are vital in early IVD morphogenesis...
December 23, 2016: Biology Open
https://www.readbyqxmd.com/read/28011039/the-direction-of-human-mesenchymal-stem-cells-into-the-chondrogenic-lineage-is-influenced-by-the-features-of-hydrogel-carriers
#20
A Hansson, A Wenger, H Barreto Henriksson, S Li, B R Johansson, H Brisby
Low back pain is a major public health issue in the Western world, one main cause is believed to be intervertebral disc (IVD) degeneration. To halt/diminish IVD degeneration, cell therapy using different biomaterials e.g. hydrogels as cell carriers has been suggested. In this study, two different hydrogels were examined (in vitro) as potential cell carriers for human mesenchymal stem cells (hMSCs) intended for IVD transplantation. The aim was to investigate cell-survival and chondrogenic differentiation of hMSCs when cultured in hydrogels Puramatrix(®) or Hydromatrix(®) and potential effects of stimulation with growth hormone (GH)...
December 13, 2016: Tissue & Cell
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