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https://www.readbyqxmd.com/read/29905056/-research-progress-of-porous-tantalum-in-bone-tissue-engineering
#1
REVIEW
Xiaoquan Ding, Xingwang Liu, Jun Chen, Shiyi Chen
Objective : To review the basical research progress of porous tantalum in bone tissue engineering. Methods: The related basical research in fabrication, cytobiology, and surface modification of porous tantalum was reviewed and analyzed. Results: The outstanding physiochemical properties of porous tantalum granted its excellent performance in biocompatibility and osteointegration, as well as promoting cartilage and tendon tissue restoration...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29899285/recent-approaches-to-the-manufacturing-of-biomimetic-multi-phasic-scaffolds-for-osteochondral-regeneration
#2
REVIEW
Ryan Longley, Ana Marina Ferreira, Piergiorgio Gentile
Cartilage lesions of the knee are common disorders affecting people of all ages; as the lesion progresses, it extends to the underlying subchondral bone and an osteochondral defect appears. Osteochondral (OC) tissue compromises soft cartilage over hard subchondral bone with a calcified cartilage interface between these two tissues. Osteochondral defects can be caused by numerous factors such as trauma and arthritis. Tissue engineering offers the possibility of a sustainable and effective treatment against osteochondral defects, where the damaged tissue is replaced with a long-lasting bio-manufactured replacement tissue...
June 13, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29894913/regulation-of-decellularized-tissue-remodeling-via-scaffold-mediated-lentiviral-delivery-in-anatomically-shaped-osteochondral-constructs
#3
Christopher R Rowland, Katherine A Glass, Adarsh R Ettyreddy, Catherine C Gloss, Jared R L Matthews, Nguyen P T Huynh, Farshid Guilak
Cartilage-derived matrix (CDM) has emerged as a promising scaffold material for tissue engineering of cartilage and bone due to its native chondroinductive capacity and its ability to support endochondral ossification. Because it consists of native tissue, CDM can undergo cellular remodeling, which can promote integration with host tissue and enables it to be degraded and replaced by neotissue over time. However, enzymatic degradation of decellularized tissues can occur unpredictably and may not allow sufficient time for mechanically competent tissue to form, especially in the harsh inflammatory environment of a diseased joint...
May 30, 2018: Biomaterials
https://www.readbyqxmd.com/read/29876200/a-modular-strategy-to-engineer-complex-tissues-and-organs
#4
Anna D Dikina, Daniel S Alt, Samuel Herberg, Alexandra McMillan, Hannah A Strobel, Zijie Zheng, Meng Cao, Bradley P Lai, Oju Jeon, Victoria Ivy Petsinger, Calvin U Cotton, Marsha W Rolle, Eben Alsberg
Currently, there are no synthetic or biologic materials suitable for long-term treatment of large tracheal defects. A successful tracheal replacement must (1) have radial rigidity to prevent airway collapse during respiration, (2) contain an immunoprotective respiratory epithelium, and (3) integrate with the host vasculature to support epithelium viability. Herein, biopolymer microspheres are used to deliver chondrogenic growth factors to human mesenchymal stem cells (hMSCs) seeded in a custom mold that self-assemble into cartilage rings, which can be fused into tubes...
May 2018: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29873069/live-imaging-flow-bioreactor-for-the-simulation-of-articular-cartilage-regeneration-after-treatment-with-bioactive-hydrogel
#5
Assaf Bar, Emil Ruvinov, Smadar Cohen
Osteochondral defects (OCDs) are conditions affecting both cartilage and the underlying bone. Since cartilage is not spontaneously regenerated, our group has recently developed a strategy of injecting bioactive alginate hydrogel into the defect for promoting endogenous regeneration of cartilage via presentation of affinity-bound transforming growth factor β1 (TGF-β1). As in vivo model systems often provide only limited insights regarding the mechanism behind regeneration processes, here we describe a novel flow bioreactor for the in vitro modeling of the OCD microenvironment, designed to promote cell recruitment from the simulated bone marrow compartment into the hydrogel, under physiological flow conditions...
June 5, 2018: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29870552/genetic-abrogation-of-the-fibronectin-%C3%AE-5%C3%AE-1-integrin-interaction-in-articular-cartilage-aggravates-osteoarthritis-in-mice
#6
Maylin Almonte-Becerril, Irene Gimeno-LLuch, Olga Villarroya, María Benito-Jardón, Juan Bautista Kouri, Mercedes Costell
The balance between synthesis and degradation of the cartilage extracellular matrix is severely altered in osteoarthritis, where degradation predominates. One reason for this imbalance is believed to be due to the ligation of the α5β1 integrin, the classic fibronectin (FN) receptor, with soluble FN fragments instead of insoluble FN fibrils, which induces matrix metalloproteinase (MMP) expression. Our objective was to determine whether the lack of α5β1-FN binding influences cartilage morphogenesis in vivo and whether non-ligated α5β1 protects or aggravates the course of osteoarthritis in mice...
2018: PloS One
https://www.readbyqxmd.com/read/29868965/design-and-characterization-of-fibers-and-bionanocomposites-using-the-coiled-coil-domain-of-cartilage-oligomeric-matrix-protein
#7
Priya Katyal, Jin Kim Montclare
Tremendous effort has been dedicated to the design and assembly of bioinspired protein-based architectures with potential applications in drug delivery, tissue engineering, biosensing, and bioimaging. Here, we describe our strategy to generate fibers and bionanocomposites using the coiled-coil domain of cartilage oligomeric matrix protein (COMPcc). Our construct, Q, engineered by swapping particular regions of COMPcc to optimize surface charge, self-assembles to form nanofibers. The Q protein nanofibers can efficiently bind curcumin to form robust mesofibers that can be potentially used for drug delivery and biomedical applications...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29864138/forced-differentiation-in-vitro-leads-to-stress-induced-activation-of-dna-damage-response-in-hipsc-derived-chondrocyte-like-cells
#8
Ewelina Stelcer, Katarzyna Kulcenty, Marcin Rucinski, Karol Jopek, Magdalena Richter, Tomasz Trzeciak, Wiktoria Maria Suchorska
A human induced pluripotent stem cell line (GPCCi001-A) created by our group was differentiated towards chondrocyte-like cells (ChiPS) via monolayer culturing with growth factors. ChiPS are promising because they have the potential to be used in tissue engineering to regenerate articular cartilage. However, their safety must be confirmed before they can be routinely used in regenerative medicine. Using microarray analysis, we compared the ChiPS to both GPCCi001-A cells and chondrocytes. The analysis showed that, compared to both GPCCi001-A cells and chondrocytes, the expression of genes engaged in DNA damage and in the tumor protein p53 signalling pathways was significantly higher in the ChiPS...
2018: PloS One
https://www.readbyqxmd.com/read/29857483/3d-bioprinted-artificial-trachea-with-epithelial-cells-and-chondrogenic-differentiated-bone-marrow-derived-mesenchymal-stem-cells
#9
Sang-Woo Bae, Kang-Woog Lee, Jae-Hyun Park, JunHee Lee, Cho-Rok Jung, JunJie Yu, Hwi-Yool Kim, Dae-Hyun Kim
Tracheal resection has limited applicability. Although various tracheal replacement strategies were performed using artificial prosthesis, synthetic stents and tissue transplantation, the best method in tracheal reconstruction remains to be identified. Recent advances in tissue engineering enabled 3D bioprinting using various biocompatible materials including living cells, thereby making the product clinically applicable. Moreover, clinical interest in mesenchymal stem cell has dramatically increased. Here, rabbit bone marrow-derived mesenchymal stem cells (bMSC) and rabbit respiratory epithelial cells were cultured...
May 31, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29852377/glycosylated-superparamagnetic-nanoparticle-gradients-for-osteochondral-tissue-engineering
#10
Chunching Li, James Pk Armstrong, Isaac J Pence, Worrapong Kit-Anan, Jennifer L Puetzer, Sara Correia Carreira, Axel C Moore, Molly M Stevens
In developmental biology, gradients of bioactive signals direct the formation of structural transitions in tissue that are key to physiological function. Failure to reproduce these native features in an in vitro setting can severely limit the success of bioengineered tissue constructs. In this report, we introduce a facile and rapid platform that uses magnetic field alignment of glycosylated superparamagnetic iron oxide nanoparticles, pre-loaded with growth factors, to pattern biochemical gradients into a range of biomaterial systems...
May 21, 2018: Biomaterials
https://www.readbyqxmd.com/read/29848797/novel-phase-separated-pcl-collagen-scaffolds-for-cartilage-tissue-engineering
#11
Nimrah Munir, Anthony Callanan
Osteoarthritis is the leading cause of pain and disability worldwide. Despite treatment availability, fully functional and suitable long term treatments for large cartilage defects is yet to be sought. Cartilage tissue engineering provides an alternative treatment option with the potential of cartilage regeneration. Previously, scaffolds have been enhanced through coating with collagen type I, however, equal distribution of collagen and collagen penetration throughout the scaffold have been poor. Herein, this study aims to employ thermally induced phase separation to fabricate porous hybrid polycaprolactone (PCL)/collagen type I scaffolds, with equally distributed collagen type I throughout the scaffold...
May 31, 2018: Biomedical Materials
https://www.readbyqxmd.com/read/29844536/injectable-cartilaginous-template-transformed-bmscs-into-vascularized-bone
#12
Xiaoke Feng, Zhiye Li, Jianhua Wei, Zhihong Feng, Wei Wu, Yimin Zhao
Regeneration of alveolar bone for dental implant remains a major issue, partifcularly for patients suffering from severe bone adsorption and irregular socket trauma. Recapitulating embryological development is becoming an attractive approach for engineer organ or three-dimensional tissues from stem cells. In this study, we aimed to develop an injectable "cartilaginous" graft with adequate mechanical resistance and ideal bone remodelling potential. The cartilaginous graft was composed of a particulate decellularised cartilage matrix (PDCM), chondrogenically primed bone mesenchymal stem cell (BMSC) bricks (CB), and enriched platelet-rich plasma (P) gel...
May 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29809295/chondrocyte-and-mesenchymal-stem-cell-derived-engineered-cartilage-exhibits-differential-sensitivity-to-pro-inflammatory-cytokines
#13
Bhavana Mohanraj, Alice H Huang, Meira J Yeger-McKeever, Megan J Schmidt, George R Dodge, Robert L Mauck
Tissue engineering is a promising approach for the repair of articular cartilage defects, with engineered constructs emerging that match native tissue properties. However, the inflammatory environment of the damaged joint might compromise outcomes, and this may be impacted by the choice of cell source in terms of their ability to operate anabolically in an inflamed environment. Here, we compared the response of engineered cartilage derived from native chondrocytes and mesenchymal stem cells (MSCs) to challenge by TNFα and IL-1β in order to determine if either cell type possessed an inherent advantage...
May 29, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29806418/-application-of-cell-sheet-technology-in-bone-and-cartilage-tissue-engineering
#14
Zhenya Zhi, Fei Xing, Long Chen, Lang Li, Ye Long, Zhou Xiang
Objective: To review the progress of cell sheet technology and its application in bone and cartilage engineering. Methods: The recent literature concerning the cell sheet technology used in treatment of bone and cartilage defects was extensively reviewed and summarized. Results: Cell sheet built through many different ways can protect extracellular matrix from proteolytic enzymes. As a three-dimensional structure, cell sheet can repair bone and cartilige defects via folding, wrapping scaffold, or be created by the layering of individual cell sheets...
February 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29806301/-preparation-and-in-vitro-evaluation-of-tissue-engineered-osteochondral-integration-of-multi-layered-scaffold
#15
Jianwei Li, Xueliang Zhang, Quanyi Guo, Jingchun Zhang, Yanjie Cao, Xinguo Zhang, Jianjun Huang, Qi Wang, Xiaogang Liu, Chunxiang Hao
Objective: The tissue engineered osteochondral integration of multi-layered scaffold was prepared and the related mechanical properties and biological properties were evaluated to provide a new technique and method for the repair and regeneration of osteochondral defect. Methods: According to blend of different components and proportion of acellular cartilage extracellular matrix of pig, nano-hydroxyapatite, and alginate, the osteochondral integration of multi-layered scaffold was prepared by using freeze-drying and physical and chemical cross-linking technology...
April 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29806277/-construction-of-tissue-engineered-cartilage-based-on-acellular-cartilage-extracellular-matrix-oriented-scaffold-and-chondrocytes
#16
Liang Lu, Bin Liu, Xifu Shang, Yu Zhang, Weijian Chen, Shuyun Liu, Jingxiang Huang, Aiyuan Wang, Quanyi Guo, Shibi Lu
Objective: To observe the feasibility of acellular cartilage extracellular matrix (ACECM) oriented scaffold combined with chondrocytes to construct tissue engineered cartilage. Methods: Chondrocytes from the healthy articular cartilage tissue of pig were isolated, cultured, and passaged. The 3rd passage chondrocytes were labeled by PKH26. After MTT demonstrated that PKH26 had no influence on the biological activity of chondrocytes, labeled and unlabeled chondrocytes were seeded on ACECM oriented scaffold and cultivated...
March 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29797300/biological-response-of-osteoblastic-and-chondrogenic-cells-to-graphene-containing-pcl-bioactive-glass-bilayered-scaffolds-for-osteochondral-tissue-engineering-applications
#17
Aylin M Deliormanlı, Harika Atmaca
Graphene-containing 13-93 bioactive glass and poly(ε-caprolactone)-based bilayer, electrically conductive scaffolds were prepared for osteochondral tissue repair. Biological response of osteoblastic MC3T3-E1 and chondrogenic ATDC5 cells to the composite scaffolds was assessed under mono-culture and co-culture conditions. Cytotoxicity was investigated using MTT assay, cartilage matrix production was evaluated by Alcian blue staining, and mineralization of both types of cells in the different culture systems was observed by Alizarin red S staining...
May 25, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29783732/hyaluronic-acid-influence-on-normal-and-osteoarthritic-tissue-engineered-cartilage
#18
Shabnam Hemmati-Sadeghi, Jochen Ringe, Tilo Dehne, Rainer Haag, Michael Sittinger
The aim of this study is to identify gene expression profiles associated with hyaluronic acid (HA) treatment of normal and osteoarthritis (OA)-like tissue-engineered cartilage. 3D cartilage micromasses were treated with tumour necrosis factor-α (TNF-α) (OA-inducer) and/or HA for 7 days. Viability was examined by PI/FDA staining. To document extracellular matrix (ECM) formation, glycosaminoglycans (GAG) were stained with Safranin-O and cartilage-specific type II collagen was detected immunohistochemically...
May 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29779446/repair-of-articular-osteochondral-defects-using-an-integrated-and-biomimetic-trilayered-scaffold
#19
Chenjun Zhai, Hao Fei, Junzheng Hu, Zhen Wang, Shun Xu, Qiang Zuo, Zeng Li, Zhen Wang, Wenwei Liang, Weimin Fan
Repair of articular cartilage defects using bilayered scaffolds is problematic because tissue-engineered cartilage is prone to overgrowth toward subchondral bone resulting in structural abnormalities of cartilage and subchondral bone. A "twice freeze-drying" technique was used to construct a dense isolation layer between the cartilage and subchondral bone layers in an integrated bilayered scaffold to prevent cartilage from excessive downgrowth. Briefly, beta-tricalcium phosphate was used for the subchondral bone layer of the scaffold, high-concentration chitosan/gelatin solution for the dense isolation layer, and low-concentration chitosan/gelatin solution for the cartilage layer...
May 19, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29775757/molecular-characterization-of-physis-tissue-by-rna-sequencing
#20
Christopher R Paradise, Catalina Galeano-Garces, Daniela Galeano-Garces, Amel Dudakovic, Todd A Milbrandt, Daniel B F Saris, Aaron J Krych, Marcel Karperien, Gabriel B Ferguson, Denis Evseenko, Scott M Riester, Andre J van Wijnen, A Noelle Larson
The physis is a well-established and anatomically distinct cartilaginous structure that is crucial for normal long-bone development and growth. Abnormalities in physis function are linked to growth plate disorders and other pediatric musculoskeletal diseases. Understanding the molecular pathways operative in the physis may permit development of regenerative therapies to complement surgically-based procedures that are the current standard of care for growth plate disorders. Here, we performed next generation RNA sequencing on mRNA isolated from human physis and other skeletal tissues (e...
May 15, 2018: Gene
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