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https://www.readbyqxmd.com/read/28919746/in-vitro-and-in-vivo-studies-of-a-novel-bacterial-cellulose-based-acellular-bilayer-nanocomposite-scaffold-for-the-repair-of-osteochondral-defects
#1
Jyoti V Kumbhar, Sachin H Jadhav, Dhananjay S Bodas, Amruta Barhanpurkar-Naik, Mohan R Wani, Kishore M Paknikar, Jyutika M Rajwade
Bacterial cellulose (BC) is a naturally occurring nanofibrous biomaterial which exhibits unique physical properties and is amenable to chemical modifications. To explore whether this versatile material can be used in the treatment of osteochondral defects (OCD), we developed and characterized novel BC-based nanocomposite scaffolds, for example, BC-hydroxyapatite (BC-HA) and BC-glycosaminoglycans (BC-GAG) that mimic bone and cartilage, respectively. In vitro biocompatibility of BC-HA and BC-GAG scaffolds was established using osteosarcoma cells, human articular chondrocytes, and human adipose-derived mesenchymal stem cells...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28914209/knee-ligament-injury-and-the-clinical-application-of-tissue-engineering-techniques-a-systematic-review
#2
Thomas Riley, Reza Mafi, Pouya Mafi, Wasim Khan
Background The incidence of knee ligament injury is increasing and represents a significant cost to healthcare providers. Current interventions include tissue grafts, suture repair and non-surgical management. These techniques have demonstrated good patient outcomes but have been associated graft rejection, infection, long term immobilization and reduced joint function. The limitations of traditional management strategies have prompted research into tissue engineering of knee ligaments. Objective This paper aims to evaluate whether tissue engineering of knee ligaments offers a viable alternative in the clinical management of knee ligament injuries...
September 15, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28894878/erratum-to-one-step-surgery-with-multipotent-stem-cells-and-hyaluronan-based-scaffold-for-the-treatment-of-full-thickness-chondral-defects-of-the-knee-in-patients-older-than-45%C3%A2-years
#3
Alberto Gobbi, Celeste Scotti, Georgios Karnatzikos, Abhishek Mudhigere, Marc Castro, Giuseppe M Peretti
No abstract text is available yet for this article.
September 11, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28892260/synthetic-poly-vinylalcohol-based-membranes-for-cartilage-surgery-and-repair
#4
Benjamin C U Tai, Chan Du, Shujun Gao, Andrew C A Wan
Cell-based therapies for cartilage repair are continually being developed to treat osteoarthritis. The cells are either introduced directly by intra-articular injection or via a cell-seeded matrix scaffold. Here, we developed poly(vinylalcohol)-based membranes to be used for mesenchymal stem cell implantation in cartilage repair procedures, having controllable physicochemical properties such as porosity, mechanical strength and permeability, and a unique self-sealing property. The membranes possess a bilayer structure with a less porous layer providing mechanical strength and selective permeability, exhibit an elastic modulus of between 0...
September 11, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28888902/a-small-molecule-inhibitor-of-the-wnt-pathway-sm04690-as-a-potential-disease-modifying-agent-for-the-treatment-of-osteoarthritis-of-the-knee
#5
Vishal Deshmukh, Haide Hu, Charlene Barroga, Carine Bossard, Sunil Kc, Luis Dellamary, Joshua Stewart, Kevin Chiu, Maureen Ibanez, Melinda Pedraza, Tim Seo, Long Do, Shawn Cho, Joseph Cahiwat, Betty Tam, Jeyanesh R S Tambiah, John Hood, Nancy E Lane, Yusuf Yazici
OBJECTIVES: Osteoarthritis (OA) is a degenerative disease characterized by loss of cartilage and increased subchondral bone within synovial joints. Wnt signaling affects the pathogenesis of OA as this pathway modulates both the differentiation of osteoblasts and chondrocytes, and production of catabolic proteases. A novel small molecule Wnt pathway inhibitor, SM04690, was evaluated in a series of in vitro and in vivo animal studies to determine its effects on chondrogenesis, cartilage protection and synovial-lined joint pathology...
September 6, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28884332/subchondral-mesenchymal-stem-cells-from-osteoarthritic-knees-display-high-osteogenic-differentiation-capacity-through-microrna-29a-regulation-of-hdac4
#6
Wei-Shiung Lian, Ren-Wen Wu, Mel S Lee, Yu-Shan Chen, Yi-Chih Sun, Shing-Long Wu, Huei-Jing Ke, Jih-Yang Ko, Feng-Sheng Wang
Subchondral bone deterioration and osteophyte formation attributable to excessive mineralization are prominent features of end-stage knee osteoarthritis (OA). The cellular events underlying subchondral integrity diminishment remained elusive. This study was undertaken to characterize subchondral mesenchymal stem cells (SMSCs) isolated from patients with end-stage knee OA who required total knee arthroplasty. The SMSCs expressed surface antigens CD29, CD44, CD73, CD90, CD105, and CD166 and lacked CD31, CD45, and MHCII expression...
September 7, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28872083/-repair-of-articular-cartilage-defects-by-autologous-bone-mesenchymal-stem-cells-and-allogeneic-costal-chondrocytes-in-the-knee-of-wuzhishan-miniature-pigs
#7
Cheng Yang, Jiangdong Ni, Shou Zhang, Zhongcheng Fan
To investigate the feasibility of construction of tissue engineered cartilage by co-culture of bone marrow mesenchymal stem cells (BMSCs) and costal chondrocytes (CCs), and to provide theoretical basis and experimental basis for clinical repair of articular cartilage defects by Wuzhishan miniature pig knee cartilage defects with co-cultured cells.
 Methods: Density gradient centrifugation method was used to isolate BMSCs from Wuzhishan miniature pig. The double enzyme digestion method was used to isolate CCs...
August 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28859517/a-novel-approach-for-meniscal-regeneration-using-kartogenin-treated-autologous-tendon-graft
#8
He Huang, Hongyao Xu, Jianning Zhao
BACKGROUND: The meniscus is one of the most commonly injured parts of the body, and meniscal healing is difficult. HYPOTHESIS: Kartogenin (KGN) induces tendon stem cells (TSCs) to differentiate into cartilage cells in vitro and form meniscus-like tissue in vivo. A damaged meniscus can be replaced with a KGN-treated autologous tendon graft. STUDY DESIGN: Controlled laboratory study. METHODS: In the in vitro experiments, TSCs were isolated from rabbit patellar tendons and cultured with various concentrations of KGN, from 0 to 1000 µM...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28822634/development-and-efficacy-testing-of-a-hollow-awl-that-leads-to-patent-bone-marrow-channels-and-greater-mesenchymal-stem-cell-mobilization-during-bone-marrow-stimulation-cartilage-repair-surgery
#9
Byoung-Hyun Min, Minh-Dung Truong, Hyung Keun Song, Jae Ho Cho, Do Young Park, Heon Ju Kweon, Jun Young Chung
PURPOSE: To investigate whether microfracture with a cannulated hollow awl can yield more patent marrow channels and allow greater mobilization of the reparable cells to the defect compared to the conventional awl with blunt end in human knee joints. METHODS: Patients who were planned for 1-stage bilateral total knee arthroplasty due to degenerative osteoarthritis with well-preserved lateral femoral condylar cartilage were retrospectively included. A 10-mm × 20-mm, rectangular, full-thickness chondral defect was made on the lateral femoral condyle on each knee joint...
August 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28807034/exosomes-from-embryonic-mesenchymal-stem-cells-alleviate-osteoarthritis-through-balancing-synthesis-and-degradation-of-cartilage-extracellular-matrix
#10
Yafei Wang, Dongsheng Yu, Zhiming Liu, Fang Zhou, Jun Dai, Bingbing Wu, Jing Zhou, Boon Chin Heng, Xiao Hui Zou, Hongwei Ouyang, Hua Liu
BACKGROUND: Mesenchymal stem cell therapy for osteoarthritis (OA) has been widely investigated, but the mechanisms are still unclear. Exosomes that serve as carriers of genetic information have been implicated in many diseases and are known to participate in many physiological processes. Here, we investigate the therapeutic potential of exosomes from human embryonic stem cell-induced mesenchymal stem cells (ESC-MSCs) in alleviating osteoarthritis (OA). METHODS: Exosomes were harvested from conditioned culture media of ESC-MSCs by a sequential centrifugation process...
August 14, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28805694/progenitor-cells-from-cartilage-grade-specific-differences-in-stem-cell-marker-expression
#11
Marija Mazor, Annabelle Cesaro, Mazen Ali, Thomas M Best, Eric Lespessaille, Hechmi Toumi
Recent research has confirmed the presence of Mesenchymal stem cell (MSC)-like progenitors (MPC) in both normal and osteoarthritic cartilage. However, there is only limited information concerning how MPC markers are expressed with osteoarthritis (OA) progression. The purpose of this study was to compare the prevalence of various MPC markers in different OA grades. Human osteoarthritic tibial plateaus were obtained from ten patients undergoing total knee replacement. Each sample had been classified into a mild or severe group according to OARSI scoring...
August 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28769981/human-suprapatellar-fat-pad-derived-mesenchymal-stem-cells-induce-chondrogenesis-and-cartilage-repair-in-a-model-of-severe-osteoarthritis
#12
Ignacio Muñoz-Criado, Jose Meseguer-Ripolles, Maravillas Mellado-López, Ana Alastrue-Agudo, Richard J Griffeth, Jerónimo Forteza-Vila, Ramón Cugat, Montserrat García, Victoria Moreno-Manzano
Cartilage degeneration is associated with degenerative bone and joint processes in severe osteoarthritis (OA). Spontaneous cartilage regeneration is extremely limited. Often the treatment consists of a partial or complete joint implant. Adipose-derived stem cell (ASC) transplantation has been shown to restore degenerated cartilage; however, regenerative differences of ASC would depend on the source of adipose tissue. The infra- and suprapatellar fat pads surrounding the knee offer a potential autologous source of ASC for patients after complete joint substitution...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28768528/safety-tolerability-clinical-and-joint-structural-outcomes-of-a-single-intra-articular-injection-of-allogeneic-mesenchymal-precursor-cells-in-patients-following-anterior-cruciate-ligament-reconstruction-a-controlled-double-blind-randomised-trial
#13
Yuanyuan Wang, Andrew Shimmin, Peter Ghosh, Paul Marks, James Linklater, David Connell, Stephen Hall, Donna Skerrett, Silviu Itescu, Flavia M Cicuttini
BACKGROUND: Few clinical trials have investigated the safety and efficacy of mesenchymal stem cells for the management of post-traumatic osteoarthritis. The objectives of this pilot study were to determine the safety and tolerability and to explore the efficacy of a single intra-articular injection of allogeneic human mesenchymal precursor cells (MPCs) to improve clinical symptoms and retard joint structural deterioration over 24 months in patients following anterior cruciate ligament (ACL) reconstruction...
August 2, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28752679/the-effect-of-intra-articular-injection-of-autologous-bone-marrow-stem-cells-on-pain-and-knee-function-in-patients-with-osteoarthritis
#14
Domingo Garay-Mendoza, Laura Villarreal-Martínez, Alejandra Garza-Bedolla, Daniela M Pérez-Garza, Carlos Acosta-Olivo, Felix Vilchez-Cavazos, Cesar Diaz-Hutchinson, David Gómez-Almaguer, José C Jaime-Pérez, Consuelo Mancías-Guerra
AIM: Management of osteoarthritis (OA) is basically symptomatic. Recently, stem cells (SC) have been used in the search for an optimum treatment. We decided to conduct a controlled clinical trial to determine if a single intra-articular injection of in vivo stimulated bone marrow SC could lead to an improvement in pain management and quality of life in patients with knee OA. METHOD: This was a prospective, open-label, phase I/II clinical trial to assess the safety and efficacy of a single intra-articular injection of autologous stimulated bone marrow stem cells (BM-SC) in patients with knee OA...
July 27, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28746812/intra-articular-injection-of-mesenchymal-stem-cells-for-the-treatment-of-osteoarthritis-of-the-knee-a-2-year-follow-up-study
#15
Chris Hyunchul Jo, Jee Won Chai, Eui Cheol Jeong, Sohee Oh, Ji Sun Shin, Hackjoon Shim, Kang Sup Yoon
BACKGROUND: The intra-articular injection of mesenchymal stem cells (MSCs) into the knee has shown a potential for the treatment of generalized cartilage loss in osteoarthritis (OA). However, there have been few midterm reports with clinical and structural outcomes. PURPOSE: To assess the midterm safety and efficacy of an intra-articular injection of autologous adipose tissue-derived (AD) MSCs for knee OA at 2-year follow-up. STUDY DESIGN: Cohort study; Level of evidence, 3...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28738525/mesenchymal-stem-cells-with-igf-1-and-tgf-%C3%AE-1-in-laminin-gel-for-osteochondral-defects-in-rabbits
#16
Mudasir Bashir Gugjoo, Amarpal, Ahmed Abdelbaset-Ismail, Hari Prasad Aithal, Prakash Kinjavdekar, Abhijit Motiram Pawde, Gutulla Sai Kumar, Gutulla Taru Sharma
OBJECTIVE: Healing of articular cartilage is still a challenge due to its limited potential to regenerate. In the present study, we evaluated allogenic bone marrow mesenchymal stem cells (BM-MSCs) alone or in combination with growth factors, insulin-like growth factor-1 (IGF-1) and transforming growth factor-β1 (TGF-β1) in laminin scaffolds for healing of osteochondral defects. DESIGN: Osteochondral defects of 4mm (diameter) x 5mm (depth) were induced in the rabbit knee joints and treated with phosphate-buffered saline (PBS; control), BM-MSCs, BM-MSCs in laminin, BM-MSCs in laminin with IGF-1, or BM-MSCs in laminin with IGF-1 and TGF-β1 in 10 animals each...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738432/the-stem-cell-market-for-the-treatment-of-knee-osteoarthritis-a-patient-perspective
#17
Nicolas S Piuzzi, Mitchell Ng, Morad Chughtai, Anton Khlopas, Kenneth Ng, Michael A Mont, George F Muschler
No abstract text is available yet for this article.
July 24, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28729762/combination-of-bone-marrow-mesenchymal-stem-cells-and-cartilage-fragments-contribute-to-enhanced-repair-of-osteochondral-defects
#18
Mohammed Abbas
Cartilage tissue engineering using stem cells and biomaterials is considered a promising approach despite poor outcomes. We hypothesise that articular cartilage fragments provides native environmental cues to enhance stem cell differentiation. As such we evaluated the chondrogenic differentiation and repair of critical size defect in a human explant osteochondral model (OD) using bone marrow derived mesenchymal stem cells (BM-MSCs) and homogenised cartilage. BM-MSCs were established from the bone-marrow plugs of patients undergoing total knee arthroplasty and characterized...
2017: Bioinformation
https://www.readbyqxmd.com/read/28723877/human-spinal-bone-dust-as-a-potential-local-autograft-in-vitro-potent-anabolic-effect-on-human-osteoblasts
#19
Ryan Gao, Matthew Street, Mei Lin Tay, Karen E Callon, Dorit Naot, Alistair Lock, Jacob T Munro, Jillian Cornish, John Ferguson, David Musson
STUDY DESIGN: In Vitro Study. OBJECTIVE: To evaluate the effect that factors released from human posterior spinal bone dust have on primary human osteoblast growth and maturation. SUMMARY OF BACKGROUND DATA: Bone dust, created during spinal fusion surgeries has the potential to be used as an autologous bone graft by providing a source of viable autologous osteoblasts and mesenchymal stem cells with osteogenic potential. To date, no information is available on whether bone dust also provides a source of anabolic factors with the potential to enhance osteoblast proliferation and maturation, which would enhance its therapeutic potential...
July 18, 2017: Spine
https://www.readbyqxmd.com/read/28719231/biologic-injections-for-osteoarthritis-and-articular-cartilage-damage-can-we-modify-disease
#20
Weilong J Shi, Fotios P Tjoumakaris, Mayan Lendner, Kevin B Freedman
OBJECTIVE: The purpose of the present investigation is to conduct a systematic review of the literature to review the clinical results of platelet rich plasma (PRP) and mesenchymal stem cell treatments (MSC) (biologics) for articular cartilage lesions and osteoarthritis of the knee. METHODS: A search of the PubMed, EMBASE, and Cochrane databases was performed to identify studies involving biologic therapy for osteoarthritis or osteochondral defects. Only Level I-III clinical trials with at least 3-month follow-up were included...
September 2017: Physician and Sportsmedicine
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