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Full-Text Articles in Medicine and Health Sciences
Nanospiderwebs: Artificial 3d Extracellular Matrix From Nanofibers By Novel Clinical Grade Electrospinning For Stem Cell Delivery, Mohammad Alamein, Qin Liu, Sebastien Stephens, Stuart Skabo, Frauke Warnke, Robert Bourke, Peter Heiner, Patrick Warnke
Nanospiderwebs: Artificial 3d Extracellular Matrix From Nanofibers By Novel Clinical Grade Electrospinning For Stem Cell Delivery, Mohammad Alamein, Qin Liu, Sebastien Stephens, Stuart Skabo, Frauke Warnke, Robert Bourke, Peter Heiner, Patrick Warnke
Qin Liu
Novel clinical grade electrospinning methods could provide three-dimensional (3D) nanostructured biomaterials comprising of synthetic or natural biopolymer nanofibers. Such advanced materials could potentially mimic the natural extracellular matrix (ECM) accurately and may provide superior niche-like spaces on the subcellular scale for optimal stem-cell attachment and individual cell homing in regenerative therapies. The goal of this study was to design several novel “nanofibrous extracellular matrices” (NF-ECMs) with a natural mesh-like 3D architecture through a unique needle-free multi-jet electrospinning method in highly controlled manner to comply with good manufacturing practices (GMP) for the production of advanced healthcare materials for regenerative medicine, and …
A Clinically-Feasible Protocol For Using Human Platelet Lysate And Mesenchymal Stem Cells In Regenerative Therapies, Patrick Warnke, Andreas Humpe, Dirk Strunk, Sebastien Stephens, Frauke Warnke, Jorge Wiltfang, Katharina Schallmoser, Mohammad Alamein, Robert Bourke, Peter Heiner, Qin Liu
A Clinically-Feasible Protocol For Using Human Platelet Lysate And Mesenchymal Stem Cells In Regenerative Therapies, Patrick Warnke, Andreas Humpe, Dirk Strunk, Sebastien Stephens, Frauke Warnke, Jorge Wiltfang, Katharina Schallmoser, Mohammad Alamein, Robert Bourke, Peter Heiner, Qin Liu
Qin Liu
The transplantation of human stem cells seeded on biomaterials holds promise for many clinical applications in cranio-maxillo-facial tissue engineering and regenerative medicine. However, stem cell propagation necessary to produce sufficient cell numbers currently utilizes fetal calf serum (FCS) as a growth supplement which may subsequently transmit animal pathogens. Human platelet lysate (HPL) could potentially be utilized to produce clinical-grade stem cell-loaded biomaterials as an appropriate FCS substitute that is in line with clinically-applicable practice. The goal of this study was to investigate whether HPL can be successfully used to propagate human mesenchymal stem cells (HMSCs) seeded on clinically-approved collagen materials …
Mass Production Of Nanofibrous Extracellular Matrix With Controlled 3d Morphology For Large-Scale Soft-Tissue Regeneration, Mohammad Alamein, Sebastien Stephens, Qin Liu, Stuart Skabo, Patrick Warnke
Mass Production Of Nanofibrous Extracellular Matrix With Controlled 3d Morphology For Large-Scale Soft-Tissue Regeneration, Mohammad Alamein, Sebastien Stephens, Qin Liu, Stuart Skabo, Patrick Warnke
Qin Liu
Aim: Biomaterials that mimic the nanofibrous architecture of the natural extracellular matrix (ECM) are in the focus for stem cell hosting or delivery in tissue engineering of multilayered soft tissues such as skin, mucosa, or retina. Synthetic nanofibers for such ECM are usually produced by single-syringe electrospinning with only one needle-jet at very low production rates of 0.005–0.008 g·min−1. The aim of this study was to utilize a novel industrial needle-free multijet electrospinning device with the potential for mass production of nanofibrous ECM (NF-ECM) exhibiting a controlled three-dimensional (3D) morphology for large-scale applications such as large area skin regeneration in …
Novel Ceramic Bone Replacement Material Ceraball® Seeded With Human Mesenchymal Stem Cells, Timothy Douglas, Qin Liu, Andreas Humpe, Jörg Wiltfang, Sureshan Sivananthan, Patrick Warnke
Novel Ceramic Bone Replacement Material Ceraball® Seeded With Human Mesenchymal Stem Cells, Timothy Douglas, Qin Liu, Andreas Humpe, Jörg Wiltfang, Sureshan Sivananthan, Patrick Warnke
Qin Liu
Objectives: Hydroxyapatite (HA) and tricalcium phosphate (TCP) are two very common ceramic materials for bone replacement. A recently developed material for bone replacement is CeraBall®, which is a mixed HA-TCP scaffold available as porous spherical scaffolds of diameter 4 and 6 mm. Before their use as bone replacement materials in vivo, in vitro testing of these scaffolds is necessary. The goal of this study was to characterise 4 and 6 mm CeraBall® scaffolds in vitro with a view to their future use as bone replacement materials. Materials and methods: The proliferation of human mesenchymal stromal cells (hMSCs) seeded on CeraBall® …