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https://www.readbyqxmd.com/read/29792508/effects-of-tgf-%C3%AE-overexpression-via-raav-gene-transfer-on-the-early-repair-processes-in-an-osteochondral-defect-model-in-minipigs
#1
Magali Cucchiarini, Ann-Kathrin Asen, Lars Goebel, Jagadeesh K Venkatesan, Gertrud Schmitt, David Zurakowski, Michael D Menger, Matthias W Laschke, Henning Madry
BACKGROUND: Application of the chondrogenic transforming growth factor beta (TGF-β) is an attractive approach to enhance the intrinsic biological activities in damaged articular cartilage, especially when using direct gene transfer strategies based on the clinically relevant recombinant adeno-associated viral (rAAV) vectors. PURPOSE: To evaluate the ability of an rAAV-TGF-β construct to modulate the early repair processes in sites of focal cartilage injury in minipigs in vivo relative to control (reporter lacZ gene) vector treatment...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29787348/characteristics-of-nasal-septal-cartilage-derived-progenitor-cells-during-prolonged-cultivation
#2
Do Hyun Kim, Jung Yeon Lim, Sung Won Kim, WeonSun Lee, Sang Hi Park, Mi Yeon Kwon, Sun Hwa Park, Mi Hyun Lim, Sang A Back, Byeong Gon Yun, Jung Ho Jeun, Se Hwan Hwang
Objective To produce alternate cell sources for tissue regeneration, human nasal septal cartilage-derived progenitor cells (NSPs) were tested to identify whether these cells meet the criteria of cartilage progenitor cells. We also evaluated the effects of prolonged cultivation on the characteristics of NSPs. Study Design In vitro study. Setting Academic research laboratory. Methods NSPs were isolated from discarded human nasal septal cartilage. NSPs were cultured for 10 passages. The expression of septal progenitor cell surface markers was assessed by fluorescence-activated cell sorting...
May 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29783101/chondrogenic-differentiation-in-vitro-of-hipscs-activates-pathways-engaged-in-limb-development
#3
Ewelina Stelcer, Katarzyna Kulcenty, Marcin Rucinski, Karol Jopek, Magdalena Richter, Tomasz Trzeciak, Wiktoria Maria Suchorska
No abstract text is available yet for this article.
May 18, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29782940/defining-osteoblast-and-adipocyte-lineages-in-the-bone-marrow
#4
J L Pierce, D L Begun, J J Westendorf, M E McGee-Lawrence
Bone is a complex endocrine organ that facilitates structural support, protection to vital organs, sites for hematopoiesis, and calcium homeostasis. The bone marrow microenvironment is a heterogeneous niche consisting of multipotent musculoskeletal and hematopoietic progenitors and their derivative terminal cell types. Amongst these progenitors, bone marrow mesenchymal stem/stromal cells (BMSCs) may differentiate into osteogenic, adipogenic, myogenic, and chondrogenic lineages to support musculoskeletal development as well as tissue homeostasis, regeneration and repair during adulthood...
May 18, 2018: Bone
https://www.readbyqxmd.com/read/29782701/tgf-%C3%AE-1-modified-hyaluronic-acid-poly-glycidol-hydrogels-for-chondrogenic-differentiation-of-human-mesenchymal-stromal-cells
#5
Thomas Böck, Verena Schill, Martin Krähnke, Andre F Steinert, Jörg Tessmar, Torsten Blunk, Jürgen Groll
In cartilage regeneration, the biomimetic functionalization of hydrogels with growth factors is a promising approach to improve the in vivo performance and furthermore the clinical potential of these materials. In order to achieve this without compromising network properties, multifunctional linear poly(glycidol) acrylate (PG-Acr) is synthesized and utilized as crosslinker for hydrogel formation with thiol-functionalized hyaluronic acid via Michael-type addition. As proof-of-principle for a bioactivation, transforming growth factor-beta 1 (TGF-β1) is covalently bound to PG-Acr via Traut's reagent which does not compromise the hydrogel gelation and swelling behavior...
May 21, 2018: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29780355/therapeutic-interference-with-vascular-calcification-lessons-from-klotho-hypomorphic-mice-and-beyond
#6
REVIEW
Florian Lang, Christina Leibrock, Lisann Pelzl, Meinrad Gawaz, Burkert Pieske, Ioana Alesutan, Jakob Voelkl
Medial vascular calcification, a major pathophysiological process associated with cardiovascular disease and mortality, involves osteo-/chondrogenic transdifferentiation of vascular smooth muscle cells (VSMCs). In chronic kidney disease (CKD), osteo-/chondrogenic transdifferentiation of VSMCs and, thus, vascular calcification is mainly driven by hyperphosphatemia, resulting from impaired elimination of phosphate by the diseased kidneys. Hyperphosphatemia with subsequent vascular calcification is a hallmark of klotho-hypomorphic mice, which are characterized by rapid development of multiple age-related disorders and early death...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29777011/fox-proteins-are-modular-competency-factors-for-facial-cartilage-and-tooth-specification
#7
Pengfei Xu, Bartosz Balczerski, Amanda Ciozda, Kristin Louie, Veronika Oralova, Ann Huysseune, J Gage Crump
Facial form depends on the precise positioning of cartilage, bone, and tooth fields in the embryonic pharyngeal arches. How complex signaling information is integrated to specify these cell types remains a mystery. We find that modular expression of Forkhead-domain transcription factors (Fox) in the zebrafish face arises through integration of Hh, Fgf, Bmp, Edn1, and Jagged-Notch pathways. Whereas loss of C-class Fox proteins results in reduced upper facial cartilages, loss of F-class Fox proteins results in distal jaw truncations and absent midline cartilages and teeth...
May 18, 2018: Development
https://www.readbyqxmd.com/read/29774080/microrna-193b-3p-regulates-chondrogenesis-and-chondrocyte-metabolism-by-targeting-hdac3
#8
Fangang Meng, Zhiwen Li, Zhiqi Zhang, Zibo Yang, Yan Kang, Xiaoyi Zhao, Dianbo Long, Shu Hu, Minghui Gu, Suiwen He, Peihui Wu, Zongkun Chang, Aishan He, Weiming Liao
Histone deacetylase 3 (HDAC3) plays a pivotal role in the repression of cartilage-specific gene expression in human chondrocytes. The aim of this study was to determine whether microRNA-193b-3p (miR-193b-3p) regulates the expression of HDAC3 during chondrogenesis and chondrocyte metabolism. Methods: miR-193b-3p expression was assessed in a human mesenchymal stem cell (hMSC) model of chondrogenesis, in interleukin-1β (IL-1β)-treated primary human chondrocytes (PHCs), and in non-degraded and degraded cartilage...
2018: Theranostics
https://www.readbyqxmd.com/read/29772932/recent-advances-in-kartogenin-for-cartilage-regeneration
#9
Gaorui Cai, Wei Liu, Yong He, Jianghong Huang, Li Duan, Jianyi Xiong, Lijun Liu, Daping Wang
Either osteoarthritisor sports-related injuries can lead to cartilage defects,whereas both chondrocyte self-renewal and conventional treatments face limitations. In cartilage regenerative medicine, growth factors are commonly used to induce chondrogenic differentiation of stem cells. However, application of growth factors is confined by some drawbacks. Emerging small molecules are regarded as an alternative for cartilage regeneration. A recently discovered small-molecule compound, kartogenin (KGN), has been proven to be a chondrogenic and chondroprotective agent and is more effective in inducing cartilage regeneration when compared with growth factors...
May 18, 2018: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29770705/gingival-mesenchymal-stem-cells-outperform-haploidentical-dental-pulp-derived-mesenchymal-stem-cells-in-proliferation-rate-migration-ability-and-angiogenic-potential
#10
Ioannis Angelopoulos, Claudia Brizuela, Maroun Khoury
High donor variation makes comparison studies between different dental sources dubious. Dental tissues offer a rare opportunity for comparing the biological characteristics of haploidentical mesenchymal stem cells (MSCs) isolated from the same donor. The objective was to identify the optimal dental source of MSCs through a biological and functional comparison of haploidentical MSCs from gingival (GMSCs) and dental pulp stem cells (DPSCs) focusing mainly on their angiogenic potential. The comparison study included (1) surface markers expression, (2) mesodermal differentiation capacity (chondrogenic, adipogenic, and osteogenic), (3) proliferation, (4) migration potential, (5) ability to form colony units, and (6) angiogenic potential in vitro and in vivo...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29770595/repair-potential-of-non-surgically-delivered-induced-pluripotent-stem-cell-derived-chondrocytes-in-a-rat-osteochondral-defect-model
#11
Yeri Alice Rim, Yoojun Nam, Narae Park, Jennifer Lee, Sung-Hwan Park, Ji Hyeon Ju
Human induced pluripotent stem cells (hiPSCs) are thought to be an alternative cell source for future regenerative medicine. hiPSCs may allow unlimited production of cell types that have low turnover rates and are difficult to obtain such as autologous chondrocytes. In this study, we generated hiPSC-derived chondrogenic pellets and chondrocytes were isolated. To confirm the curative effects, chondrogenic pellets and isolated chondrocytes were transplanted into rat joints with osteochondral defects. Isolated hiPSC-derived chondrocytes were delivered in the defect by a single intra-articular injection...
May 16, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29768259/precise-intradermal-injection-of-nanofat-derived-stromal-cells-combined-with-platelet-rich-fibrin-improves-the-efficacy-of-facial-skin-rejuvenation
#12
Zhi-Jie Liang, Xiang Lu, De-Quan Li, Yi-Dan Liang, Dan-Dan Zhu, Fang-Xiao Wu, Xiao-Lin Yi, Ning He, Yan-Qing Huang, Chao Tang, Hong-Mian Li
BACKGROUND/AIMS: The rejuvenation properties of nanofat grafting have been described in recent years. However, it is not clear whether the clinical efficacy of the procedure is attributable to stem cells or linked to other components of adipose tissue. In this study we isolated nanofat-derived stem cells (NFSCs) to observe their biological characteristics and evaluate the efficacy of precise intradermal injection of nanofat combined with platelet-rich fibrin (PRF) in patients undergoing facial rejuvenation treatment...
May 11, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29766671/point-of-care-treatment-of-focal-cartilage-defects-with-selected-chondrogenic-mesenchymal-stromal-cells-an-in-vitro-proof-of-concept-study
#13
Oliver Petters, Christian Schmidt, Christian Thuemmler, Frank Peinemann, Matthias Zscharnack, Jeremy S Somerson, Ronny M Schulz
Due to the poor self-healing capacities of cartilage, innovative approaches are a major clinical need. The use of in vitro expanded MSCs in a two-stage approach is accompanied by cost, time and personnel-intensive GMP production. A one-stage intra-operative procedure could overcome these drawbacks. The aim was to prove the feasibility of a point-of-care concept for the treatment of cartilage lesions using defined MSC subpopulations in a collagen hydrogel without prior MSC monolayer expansion. We tested four single marker candidates (MSCA-1, W4A5, CD146, CD271) for their effectiveness of separating colony-forming units of ovine MSCs via magnetic cell separation...
May 15, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29766656/microencapsulated-rabbit-adipose-stem-cells-initiate-tissue-regeneration-in-a-rabbit-ear-defect-model
#14
Shirae K Leslie, David J Cohen, Sharon L Hyzy, Christopher R Dosier, Anthony Nicolini, Janina Sedlaczek, Zvi Schwartz, Barbara D Boyan
Cell-based tissue engineering can promote cartilage tissue regeneration, but cell retention in the implant site post-delivery is problematic. Alginate microbeads containing adipose stem cells (ASCs) pretreated with chondrogenic media (CM) have been used successfully to regenerate hyaline cartilage in critical size defects in rat xiphoid suggesting that they may be used to treat defects in elastic cartilages like the ear. To test this, we used microbeads made with low viscosity, high mannuronate medical grade alginate using a high electrostatic potential and a calcium cross linking solution containing glucose...
May 15, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29765449/effects-of-single-and-combined-low-frequency-electromagnetic-fields-and-simulated-microgravity-on-gene-expression-of-human-mesenchymal-stem-cells-during-chondrogenesis
#15
Susanne Mayer-Wagner, Florian Hammerschmid, Helmut Blum, Stefan Krebs, Julia I Redeker, Boris M Holzapfel, Volkmar Jansson, Peter E Müller
Introduction: Low frequency electromagnetic fields (LF-EMF) and simulated microgravity (SMG) have been observed to affect chondrogenesis. A controlled bioreactor system was developed to apply LF-EMF and SMG singly or combined during chondrogenic differentiation of human mesenchymal stem cells (hMSCs) in 3D culture. Material and methods: An external motor gear SMG bioreactor was combined with magnetic Helmholtz coils for EMF (5 mT; 15 Hz). Pellets of hMSCs (±TGF-β3) were cultured (P5) under SMG, LF-EMF, LF-EMF/SMG and control (1 g) conditions for 3 weeks...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29765426/current-therapeutic-strategies-for-stem-cell-based-cartilage-regeneration
#16
REVIEW
Yoojun Nam, Yeri Alice Rim, Jennifer Lee, Ji Hyeon Ju
The process of cartilage destruction in the diarthrodial joint is progressive and irreversible. This destruction is extremely difficult to manage and frustrates researchers, clinicians, and patients. Patients often take medication to control their pain. Surgery is usually performed when pain becomes uncontrollable or joint function completely fails. There is an unmet clinical need for a regenerative strategy to treat cartilage defect without surgery due to the lack of a suitable regenerative strategy. Clinicians and scientists have tried to address this using stem cells, which have a regenerative potential in various tissues...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765425/production-of-adult-human-synovial-fluid-derived-mesenchymal-stem-cells-in-stirred-suspension-culture
#17
Kristen D Jorgenson, David A Hart, Roman Krawetz, Arindom Sen
The chondrogenic potential of synovial fluid-derived mesenchymal stem cells (SF-MSCs) supports their use in cartilage regeneration strategies. However, their paucity in synovial fluid necessitates their proliferation in culture to generate clinically relevant quantities. Here it was determined that 125 mL stirred suspension bioreactors utilizing Cytodex-3 microcarrier beads represent a viable platform for the proliferation of these cells. During the inoculation phase, a bead loading of 2 g/L, an inoculation ratio of 4...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765416/combating-osteoarthritis-through-stem-cell-therapies-by-rejuvenating-cartilage-a-review
#18
REVIEW
Navneet Kumar Dubey, Viraj Krishna Mishra, Rajni Dubey, Shabbir Syed-Abdul, Joseph R Wang, Peter D Wang, Win-Ping Deng
Knee osteoarthritis (OA) is a chronic degenerative disorder which could be distinguished by erosion of articular cartilage, pain, stiffness, and crepitus. Not only aging-associated alterations but also the metabolic factors such as hyperglycemia, dyslipidemia, and obesity affect articular tissues and may initiate or exacerbate the OA. The poor self-healing ability of articular cartilage due to limited regeneration in chondrocytes further adversely affects the osteoarthritic microenvironment. Traditional and current surgical treatment procedures for OA are limited and incapable to reverse the damage of articular cartilage...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765413/human-urine-derived-stem-cells-potential-for-cell-based-therapy-of-cartilage-defects
#19
Long Chen, Lang Li, Fei Xing, Jing Peng, Kun Peng, Yuanzheng Wang, Zhou Xiang
Stem cell therapy is considered an optimistic approach to replace current treatments for cartilage defects. Recently, human urine-derived stem cells (hUSCs), which are isolated from the urine, are studied as a promising candidate for many tissue engineering therapies due to their multipotency and sufficient proliferation activities. However, it has not yet been reported whether hUSCs can be employed in cartilage defects. In this study, we revealed that induced hUSCs expressed chondrogenic-related proteins, including aggrecan and collagen II, and their gene expression levels were upregulated in vitro ...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765410/comparison-of-regenerative-tissue-quality-following-matrix-associated-cell-implantation-using-amplified-chondrocytes-compared-to-synovium-derived-stem-cells-in-a-rabbit-model-for-cartilage-lesions
#20
Hagen Schmal, Justyna M Kowal, Moustapha Kassem, Michael Seidenstuecker, Anke Bernstein, Katharina Böttiger, Tanshiyue Xiong, Norbert P Südkamp, Eva J Kubosch
Known problems of the autologous chondrocyte implantation motivate the search for cellular alternatives. The aim of the study was to test the potential of synovium-derived stem cells (SMSC) to regenerate cartilage using a matrix-associated implantation. In an osteochondral defect model of the medial femoral condyle in a rabbit, a collagen membrane was seeded with either culture-expanded allogenic chondrocytes or SMSC and then transplanted into the lesion. A tailored piece synovium served as a control. Rabbit SMSC formed typical cartilage in vitro...
2018: Stem Cells International
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