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Aguilera-Cobos L, Rosario-Lozano MP, Ponce-Polo A, Blasco-Amaro JA, Epstein D. Barriers for the evaluation of advanced therapy medicines and their translation to clinical practice: Umbrella review. Health Policy 2022; 126:1248-1255. [DOI: 10.1016/j.healthpol.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 10/03/2022] [Accepted: 10/11/2022] [Indexed: 11/04/2022]
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2
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Han Q, Zheng T, Zhang L, Wu N, Liang J, Wu H, Li G. Metformin loaded injectable silk fibroin microsphere for the treatment of spinal cord injury. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:747-768. [PMID: 34865608 DOI: 10.1080/09205063.2021.2014113] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The repair of spinal cord injury is a great challenge in clinical. Improving the microenvironment of the injured site is the key strategy for accelerating axon regeneration and synaptic formation. Herein, a kind of silk fibroin microspheres functionalized by metformin through dopamine was developed using water-in-oil emulsification-diffusion method and surface modification technique, and the effect on cortical neuron was evaluated. The results showed that the microspheres showed a uniform size distribution with the diameter of around 60 μm and a concave structure. Moreover, the microspheres possessed good injectability and stability. In addition, the metformin could be successfully immobilized in the silk fibroin microspheres. The cell culture results displayed that the growth and morphology of cortical neurons on the microspheres with metformin concentration of 5 mg/mL and 10 mg/mL were obviously better than that on other samples. Notably, the spread area of single cortical cell on silk fibroin microspheres was increased with the ascending metformin concentration. Therefore, the results indicated that the metformin loaded silk fibroin microsphere could obviously improve the growth and spreading behavior of cortical neuron. The study may provide an important experimental basis for the development of drug loaded injectable biomaterials scaffolds for the treatment of spinal cord injury and have great potential for spinal cord regeneration.
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Affiliation(s)
- Qi Han
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
| | - Tiantian Zheng
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
| | - Linhui Zhang
- School of Medical, Nantong University, Nantong, P.R. China
| | - Ningling Wu
- School of Medical, Nantong University, Nantong, P.R. China
| | - Jiaqi Liang
- School of Medical, Nantong University, Nantong, P.R. China
| | - Hong Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
| | - Guicai Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, Nantong, P.R. China.,Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, P.R. China.,NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, P.R. China
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Unconventional Tissue Engineering Materials in Disguise. Trends Biotechnol 2020; 38:178-190. [DOI: 10.1016/j.tibtech.2019.07.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 01/07/2023]
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Mobini S, Song YH, McCrary MW, Schmidt CE. Advances in ex vivo models and lab-on-a-chip devices for neural tissue engineering. Biomaterials 2019; 198:146-166. [PMID: 29880219 PMCID: PMC6957334 DOI: 10.1016/j.biomaterials.2018.05.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/25/2018] [Accepted: 05/07/2018] [Indexed: 02/08/2023]
Abstract
The technologies related to ex vivo models and lab-on-a-chip devices for studying the regeneration of brain, spinal cord, and peripheral nerve tissues are essential tools for neural tissue engineering and regenerative medicine research. The need for ex vivo systems, lab-on-a-chip technologies and disease models for neural tissue engineering applications are emerging to overcome the shortages and drawbacks of traditional in vitro systems and animal models. Ex vivo models have evolved from traditional 2D cell culture models to 3D tissue-engineered scaffold systems, bioreactors, and recently organoid test beds. In addition to ex vivo model systems, we discuss lab-on-a-chip devices and technologies specifically for neural tissue engineering applications. Finally, we review current commercial products that mimic diseased and normal neural tissues, and discuss the future directions in this field.
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Affiliation(s)
- Sahba Mobini
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Young Hye Song
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Michaela W McCrary
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Christine E Schmidt
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA.
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Greenberg-Worisek AJ, Runge BK, Solyntjes SA, St Helene-Kraft J, Glass SL, Waletzki BE, Herrick JL, Miller AL, Yaszemski MJ, Windebank AJ, Wang H. Establishing a Current Good Manufacturing Practice Facility for Biomaterials and Biomolecules in an Academic Medical Center. TISSUE ENGINEERING PART B-REVIEWS 2018; 24:493-498. [PMID: 30084747 DOI: 10.1089/ten.teb.2018.0114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
IMPACT STATEMENT This article describes the feasibility and path to establishing a current good manufacturing practice biomaterial facility in an academic medical center. It presents a solution to overcome the "Valley of Death" in bench to bedside translation of biomaterials-based medical devices. It sets a good and feasible example to those who are interested in joining the path toward clinical practice/commercialization, and helps to spur other institutions and investigators to think about how they could incorporate in-house processes and facilities to help speed up the translation of their work into first-in-human trials.
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Affiliation(s)
- Alexandra J Greenberg-Worisek
- 1 Center for Regenerative Medicine, Mayo Clinic , Rochester, Minnesota.,2 Department of Neurology, Mayo Clinic , Rochester, Minnesota
| | | | - Sarah A Solyntjes
- 3 Manufacturing Compliance Office, Mayo Clinic , Rochester, Minnesota
| | | | - Suzanne L Glass
- 4 Department of Orthopedic Surgery and Mayo Clinic , Rochester, Minnesota
| | - Brian E Waletzki
- 4 Department of Orthopedic Surgery and Mayo Clinic , Rochester, Minnesota
| | - James L Herrick
- 4 Department of Orthopedic Surgery and Mayo Clinic , Rochester, Minnesota
| | - Alan Lee Miller
- 4 Department of Orthopedic Surgery and Mayo Clinic , Rochester, Minnesota
| | - Michael J Yaszemski
- 1 Center for Regenerative Medicine, Mayo Clinic , Rochester, Minnesota.,4 Department of Orthopedic Surgery and Mayo Clinic , Rochester, Minnesota
| | - Anthony J Windebank
- 1 Center for Regenerative Medicine, Mayo Clinic , Rochester, Minnesota.,2 Department of Neurology, Mayo Clinic , Rochester, Minnesota
| | - Huan Wang
- 1 Center for Regenerative Medicine, Mayo Clinic , Rochester, Minnesota.,5 Department of Neurologic Surgery, Mayo Clinic , Rochester, Minnesota
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Pot MW, van Kuppevelt TH, Gonzales VK, Buma P, IntHout J, de Vries RBM, Daamen WF. Augmented cartilage regeneration by implantation of cellular versus acellular implants after bone marrow stimulation: a systematic review and meta-analysis of animal studies. PeerJ 2017; 5:e3927. [PMID: 29093996 PMCID: PMC5661456 DOI: 10.7717/peerj.3927] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/25/2017] [Indexed: 12/12/2022] Open
Abstract
Bone marrow stimulation may be applied to regenerate focal cartilage defects, but generally results in transient clinical improvement and formation of fibrocartilage rather than hyaline cartilage. Tissue engineering and regenerative medicine strive to develop new solutions to regenerate hyaline cartilage tissue. This systematic review and meta-analysis provides a comprehensive overview of current literature and assesses the efficacy of articular cartilage regeneration by implantation of cell-laden versus cell-free biomaterials in the knee and ankle joint in animals after bone marrow stimulation. PubMed and EMBASE (via OvidSP) were systematically searched using tissue engineering, cartilage and animals search strategies. Included were primary studies in which cellular and acellular biomaterials were implanted after applying bone marrow stimulation in the knee or ankle joint in healthy animals. Study characteristics were tabulated and outcome data were collected for meta-analysis for studies applying semi-quantitative histology as outcome measure (117 studies). Cartilage regeneration was expressed on an absolute 0–100% scale and random effects meta-analyses were performed. Implantation of cellular biomaterials significantly improved cartilage regeneration by 18.6% compared to acellular biomaterials. No significant differences were found between biomaterials loaded with stem cells and those loaded with somatic cells. Culture conditions of cells did not affect cartilage regeneration. Cartilage formation was reduced with adipose-derived stem cells compared to other cell types, but still improved compared to acellular scaffolds. Assessment of the risk of bias was impaired due to incomplete reporting for most studies. Implantation of cellular biomaterials improves cartilage regeneration compared to acellular biomaterials.
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Affiliation(s)
- Michiel W Pot
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Toin H van Kuppevelt
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Veronica K Gonzales
- Department of Orthopedics, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Pieter Buma
- Department of Orthopedics, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Joanna IntHout
- Department for Health Evidence, Radboud Institute for Health Sciences, Radboud university medical center, Nijmegen, The Netherlands
| | - Rob B M de Vries
- SYRCLE (SYstematic Review Centre for Laboratory animal Experimentation), Central Animal Laboratory, Radboud university medical center, Nijmegen, The Netherlands
| | - Willeke F Daamen
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud university medical center, Nijmegen, The Netherlands
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Shanbhag S, Stavropoulos A, Suliman S, Hervig T, Mustafa K. Efficacy of Humanized Mesenchymal Stem Cell Cultures for Bone Tissue Engineering: A Systematic Review with a Focus on Platelet Derivatives. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:552-569. [PMID: 28610481 DOI: 10.1089/ten.teb.2017.0093] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Fetal bovine serum (FBS) is the most commonly used supplement for ex vivo expansion of human mesenchymal stem cells (hMSCs) for bone tissue engineering applications. However, from a clinical standpoint, it is important to substitute animal-derived products according to current good manufacturing practice (cGMP) guidelines. Humanized alternatives to FBS include three categories of products: human serum (HS), human platelet derivatives (HPDs)-including platelet lysate (PL) or platelet releasate (PR), produced by freeze/thawing or chemical activation of platelet concentrates, respectively, and chemically defined media (serum-free) (CDM). In this systematic literature review, the in vitro and in vivo osteogenic potential of hMSCs expanded in humanized (HS-, HPD-, or CDM-supplemented) media versus hMSCs expanded in FBS-supplemented media, was compared. In addition, PL and PR were compared in terms of their growth factor (GF)/cytokine-content and cell-culture efficacy. When using either 10-20% autologous or pooled HS, 3-10% pooled HPDs or CDM supplemented with GFs, in comparison with 10-20% FBS, a majority of studies reported similar or superior in vitro proliferation and osteogenic differentiation, and in vivo bone formation in ectopic or orthotopic rodent models. Moreover, a trend for higher GF content was observed in PL versus PR, although evidence for cell culture efficacy is limited. In summary, humanized supplements seem at least equally effective as FBS for hMSC expansion and osteogenic differentiation. Although pooled HPDs appear to be the most favorable supplement for large-scale hMSC expansion, further efforts are needed to standardize the preparation and composition of these products in compliance with cGMP standards.
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Affiliation(s)
- Siddharth Shanbhag
- 1 Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen , Bergen, Norway
| | - Andreas Stavropoulos
- 2 Department of Periodontology, Faculty of Odontology, Malmö University , Malmö, Sweden
| | - Salwa Suliman
- 1 Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen , Bergen, Norway
| | - Tor Hervig
- 3 Department of Immunology and Transfusion Medicine, Haukeland University Hospital , Bergen, Norway
| | - Kamal Mustafa
- 1 Department of Clinical Dentistry, Centre for Clinical Dental Research, University of Bergen , Bergen, Norway
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