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Wang J, Huang D, Ren H, Shang L. Biomimic Trained Immunity-MSCs Delivery Microcarriers for Acute Liver Failure Regeneration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200858. [PMID: 35411651 DOI: 10.1002/smll.202200858] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Mesenchymal stem cells (MSCs) have a demonstrated value for acute liver failure (ALF) regeneration, while their delivery stratagems with long-term biological functions, low immune response, and high biocompatibility are still a challenge. Here, a lipopolysaccharide (LPS)-loaded photoresponsive cryogel porous microcarrier (CPM) for MSCs delivery and colonization is presented to promote defect liver regeneration. The CPMs are fabricated with graphene oxide, poly(N-isopropylacrylamide), and gelatin methacrylate (GelMA) via droplet microfluidic technology and a gradient-cooling procedure. Benefitting from the biocompatible GelMA component and the porous microstructure of the CPMs, MSCs can be nondestructively captured and abundantly delivered. Because the LPS can be released from the CPMs under NIR irradiation, the delivered MSCs are imparted with the feature of "trained immunity." Thus, when the MSCs-laden CPMs are tailored into the liver matched patches by bioprinting and applied in ALF rats, they display superior anti-inflammatory and more significant liver regeneration properties than the untrained MSCs. These features make the CPMs an excellent MSCs delivery system for clinical applications in tissue repair.
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Affiliation(s)
- Jinglin Wang
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Hepatobiliary Institute of Nanjing University, Nanjing, 210008, China
| | - Danqing Huang
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Hepatobiliary Institute of Nanjing University, Nanjing, 210008, China
| | - Haozhen Ren
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Hepatobiliary Institute of Nanjing University, Nanjing, 210008, China
| | - Luoran Shang
- Department of Hepatobiliary Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Hepatobiliary Institute of Nanjing University, Nanjing, 210008, China
- Shanghai Xuhui Central Hospital, Zhongshan-Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigenetics, the International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
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2
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Jia W, He W, Wang G, Goldman J, Zhao F. Enhancement of Lymphangiogenesis by Human Mesenchymal Stem Cell Sheet. Adv Healthc Mater 2022; 11:e2200464. [PMID: 35678079 DOI: 10.1002/adhm.202200464] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/08/2022] [Indexed: 01/24/2023]
Abstract
Preparation of human mesenchymal stem cell (hMSC) suspension for lymphedema treatment relies on conventional enzymatic digestion methods, which severely disrupts cell-cell and cell-extracellular matrix (ECM) connections, and drastically impairs cell retention and engraftment after transplantation. The objective of the present study is to evaluate the ability of hMSC-secreted ECM to augment lymphangiogenesis by using an in vitro coculturing model of hMSC sheets with lymphatic endothelial cells (LECs) and an in vivo mouse tail lymphedema model. Results demonstrate that the hMSC-secreted ECM augments the formation of lymphatic capillary-like structure by a factor of 1.2-3.6 relative to the hMSC control group, by serving as a prolymphangiogenic growth factor reservoir and facilitating cell regenerative activities. hMSC-derived ECM enhances MMP-2 mediated matrix remodeling, increases the synthesis of collagen IV and laminin, and promotes lymphatic microvessel-like structure formation. The injection of rat MSC sheet fragments into a mouse tail lymphedema model confirms the benefits of the hMSC-derived ECM by stimulating lymphangiogenesis and wound closure.
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Affiliation(s)
- Wenkai Jia
- Department of Biomedical Engineering, Texas A&M University, 101 Bizzell St, Emerging Technologies Building, College Station, TX, 77843, USA
| | - Weilue He
- Department of Biomedical Engineering, Michigan Technological University, Minerals & Materials Building, 1400 Townsend Drive, Room 309, Houghton, MI, 44931, USA
| | - Guifang Wang
- Department of Biomedical Engineering, Michigan Technological University, Minerals & Materials Building, 1400 Townsend Drive, Room 309, Houghton, MI, 44931, USA
| | - Jeremy Goldman
- Department of Biomedical Engineering, Michigan Technological University, Minerals & Materials Building, 1400 Townsend Drive, Room 309, Houghton, MI, 44931, USA
| | - Feng Zhao
- Department of Biomedical Engineering, Texas A&M University, 101 Bizzell St, Emerging Technologies Building, College Station, TX, 77843, USA
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Amini N, Milan PB, Sarmadi VH, Derakhshanmehr B, Hivechi A, Khodaei F, Hamidi M, Ashraf S, Larijani G, Rezapour A. Microorganism-derived biological macromolecules for tissue engineering. Front Med 2022; 16:358-377. [PMID: 35687278 DOI: 10.1007/s11684-021-0903-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/23/2021] [Indexed: 11/04/2022]
Abstract
According to literature, certain microorganism productions mediate biological effects. However, their beneficial characteristics remain unclear. Nowadays, scientists concentrate on obtaining natural materials from live creatures as new sources to produce innovative smart biomaterials for increasing tissue reconstruction in tissue engineering and regenerative medicine. The present review aims to introduce microorganism-derived biological macromolecules, such as pullulan, alginate, dextran, curdlan, and hyaluronic acid, and their available sources for tissue engineering. Growing evidence indicates that these materials can be used as biological material in scaffolds to enhance regeneration in damaged tissues and contribute to cosmetic and dermatological applications. These natural-based materials are attractive in pharmaceutical, regenerative medicine, and biomedical applications. This study provides a detailed overview of natural-based biomaterials, their chemical and physical properties, and new directions for future research and therapeutic applications.
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Affiliation(s)
- Naser Amini
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1591639675, Iran.,Institutes of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Peiman Brouki Milan
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1591639675, Iran. .,Institutes of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran. .,Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran.
| | - Vahid Hosseinpour Sarmadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1591639675, Iran.,Institutes of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Bahareh Derakhshanmehr
- Institutes of Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, 1449614535, Iran
| | - Ahmad Hivechi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, 1591639675, Iran.,Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Fateme Khodaei
- Burn Research Center, Department of Plastic and Reconstructive Surgery, Iran University of Medical Sciences, Tehran, 1591639675, Iran
| | - Masoud Hamidi
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht, 4477166595, Iran
| | - Sara Ashraf
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, 1477893855, Iran
| | - Ghazaleh Larijani
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, 1477893855, Iran
| | - Alireza Rezapour
- Cellular and Molecular Research Centre, Qom University of Medical Sciences, Qom, 3715835155, Iran. .,Department of Tissue Engineering and Regenerative Medicine, School of Medicine, Qom University of Medical Sciences, Qom, 3715835155, Iran.
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Electrospun Polysaccharides for Periodontal Tissue Engineering: A Review of Recent Advances and Future Perspectives. Ann Biomed Eng 2022; 50:769-793. [DOI: 10.1007/s10439-022-02952-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 03/16/2022] [Indexed: 12/18/2022]
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Gerschenfeld G, Aid R, Simon-Yarza T, Lanouar S, Charnay P, Letourneur D, Topilko P. Tuning Physicochemical Properties of a Macroporous Polysaccharide-Based Scaffold for 3D Neuronal Culture. Int J Mol Sci 2021; 22:12726. [PMID: 34884531 PMCID: PMC8657966 DOI: 10.3390/ijms222312726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/15/2021] [Accepted: 11/23/2021] [Indexed: 11/18/2022] Open
Abstract
Central nervous system (CNS) lesions are a leading cause of death and disability worldwide. Three-dimensional neural cultures in biomaterials offer more physiologically relevant models for disease studies, toxicity screenings or in vivo transplantations. Herein, we describe the development and use of pullulan/dextran polysaccharide-based scaffolds for 3D neuronal culture. We first assessed scaffolding properties upon variation of the concentration (1%, 1.5%, 3% w/w) of the cross-linking agent, sodium trimetaphosphate (STMP). The lower STMP concentration (1%) allowed us to generate scaffolds with higher porosity (59.9 ± 4.6%), faster degradation rate (5.11 ± 0.14 mg/min) and lower elastic modulus (384 ± 26 Pa) compared with 3% STMP scaffolds (47 ± 2.1%, 1.39 ± 0.03 mg/min, 916 ± 44 Pa, respectively). Using primary cultures of embryonic neurons from PGKCre, Rosa26tdTomato embryos, we observed that in 3D culture, embryonic neurons remained in aggregates within the scaffolds and did not attach, spread or differentiate. To enhance neuronal adhesion and neurite outgrowth, we then functionalized the 1% STMP scaffolds with laminin. We found that treatment of the scaffold with a 100 μg/mL solution of laminin, combined with a subsequent freeze-drying step, created a laminin mesh network that significantly enhanced embryonic neuron adhesion, neurite outgrowth and survival. Such scaffold therefore constitutes a promising neuron-compatible and biodegradable biomaterial.
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Affiliation(s)
- Gaspard Gerschenfeld
- Ecole Normale Supérieure, PSL Research University, CNRS, Inserm, Institut de Biologie de l’Ecole Normale Supérieure (IBENS), F-75005 Paris, France; (G.G.); (P.C.)
- Collège Doctoral, Sorbonne Université, F-75005 Paris, France
| | - Rachida Aid
- INSERM U1148, LVTS, Université de Paris, X Bichat Hospital, 46 Rue H Huchard, F-75018 Paris, France; (R.A.); (T.S.-Y.); (S.L.); (D.L.)
- INSERM UMS-34, FRIM, Université de Paris, X Bichat School of Medicine, F-75018 Paris, France
| | - Teresa Simon-Yarza
- INSERM U1148, LVTS, Université de Paris, X Bichat Hospital, 46 Rue H Huchard, F-75018 Paris, France; (R.A.); (T.S.-Y.); (S.L.); (D.L.)
- INSERM U1148, LVTS, Université Sorbonne Paris Nord, 99 Av JB Clément, F-93430 Villetaneuse, France
| | - Soraya Lanouar
- INSERM U1148, LVTS, Université de Paris, X Bichat Hospital, 46 Rue H Huchard, F-75018 Paris, France; (R.A.); (T.S.-Y.); (S.L.); (D.L.)
- INSERM U1148, LVTS, Université Sorbonne Paris Nord, 99 Av JB Clément, F-93430 Villetaneuse, France
| | - Patrick Charnay
- Ecole Normale Supérieure, PSL Research University, CNRS, Inserm, Institut de Biologie de l’Ecole Normale Supérieure (IBENS), F-75005 Paris, France; (G.G.); (P.C.)
| | - Didier Letourneur
- INSERM U1148, LVTS, Université de Paris, X Bichat Hospital, 46 Rue H Huchard, F-75018 Paris, France; (R.A.); (T.S.-Y.); (S.L.); (D.L.)
- INSERM U1148, LVTS, Université Sorbonne Paris Nord, 99 Av JB Clément, F-93430 Villetaneuse, France
| | - Piotr Topilko
- Ecole Normale Supérieure, PSL Research University, CNRS, Inserm, Institut de Biologie de l’Ecole Normale Supérieure (IBENS), F-75005 Paris, France; (G.G.); (P.C.)
- Institut Mondor de Recherche Biomédicale (IMRB), Université Paris Est Créteil (UPEC), INSERM U955, F-94010 Créteil, France
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6
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Chen C, Lou Y, Li XY, Lv ZT, Zhang LQ, Mao W. Mapping current research and identifying hotspots on mesenchymal stem cells in cardiovascular disease. Stem Cell Res Ther 2020; 11:498. [PMID: 33239082 PMCID: PMC7687818 DOI: 10.1186/s13287-020-02009-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/03/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) have important research value and broad application prospects in the cardiovascular disease. This study provides information on the latest progress, evolutionary path, frontier research hotspots, and future research developmental trends in this field. METHODS A knowledge map was generated by CiteSpace and VOSviewer analysis software based on data obtained from the literature on MSCs in the cardiovascular field. RESULTS The USA and China ranked at the top in terms of the percentage of articles, accounting for 34.306% and 28.550%, respectively. The institution with the highest number of research publications in this field was the University of Miami, followed by the Chinese Academy of Medical Sciences and Harvard University. The research institution with the highest ACI value was Harvard University, followed by the Mayo Clinic and the University of Cincinnati. The top three subjects in terms of the number of published articles were cell biology, cardiovascular system cardiology, and research experimental medicine. The journal with the most publications in this field was Circulation Research, followed by Scientific Reports and Biomaterials. The direction of research on MSCs in the cardiovascular system was divided into four parts: (1) tissue engineering, scaffolds, and extracellular matrix research; (2) cell transplantation, differentiation, proliferation, and signal transduction pathway research; (3) assessment of the efficacy of stem cells from different sources and administration methods in the treatment of acute myocardial infarction, myocardial hypertrophy, and heart failure; and (4) exosomes and extracellular vesicles research. Tissue research is the hotspot and frontier in this field. CONCLUSION MSC research has presented a gradual upward trend in the cardiovascular field. Multidisciplinary intersection is a characteristic of this field. Engineering and materials disciplines are particularly valued and have received attention from researchers. The progress in multidisciplinary research will provide motivation and technical support for the development of this field.
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Affiliation(s)
- Chan Chen
- Hangzhou Xiaoshan district Hospital of TCM, Jiangnan Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, 311201, Zhejiang, China. .,Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
| | - Yang Lou
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Xin-Yi Li
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Zheng-Tian Lv
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Lu-Qiu Zhang
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Wei Mao
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China.
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7
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Chen S, Hsieh MH, Li SH, Wu J, Weisel RD, Chang Y, Sung HW, Li RK. A conductive cell-delivery construct as a bioengineered patch that can improve electrical propagation and synchronize cardiomyocyte contraction for heart repair. J Control Release 2020; 320:73-82. [DOI: 10.1016/j.jconrel.2020.01.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/08/2020] [Accepted: 01/15/2020] [Indexed: 12/27/2022]
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8
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Abstract
This chapter discusses a methodology for simultaneously imaging stem cells and endothelial cells within polysaccharide-based scaffolds for tissue engineering. These scaffolds were then implanted into nude mice. Human mesenchymal stem cells (HMSCs) were labeled with the T1-marker Gd(III)-DOTAGA-functionalized polysiloxane nanoparticles (GdNPs), whereas endothelial umbilical vein cells (HUVECs) were labeled with citrate-stabilized maghemite nanoparticles (IONPs), which predominantly shorten the T2-relaxation times of the water molecules in scaffolds and tissue. Dual cell detection was achieved by performing T1- and T2-weighted MRI in both tissue scaffolds and in vivo.
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Affiliation(s)
| | - Stefan H Bossmann
- Department of Chemistry and Johnson Cancer Center, Kansas State University, Manhattan, KS, USA
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9
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Rockel JS, Rabani R, Viswanathan S. Anti-fibrotic mechanisms of exogenously-expanded mesenchymal stromal cells for fibrotic diseases. Semin Cell Dev Biol 2019; 101:87-103. [PMID: 31757583 DOI: 10.1016/j.semcdb.2019.10.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/11/2019] [Accepted: 10/30/2019] [Indexed: 12/17/2022]
Abstract
Most chronic diseases involving inflammation have a fibrotic component that involves remodeling and excess accumulation of extracellular matrix components. Left unchecked, fibrosis leads to organ failure and death. Mesenchymal stromal cells (MSCs) are emerging as a potent cell-based therapy for a wide spectrum of fibrotic conditions due to their immunomodulatory, anti-inflammatory and anti-fibrotic properties. This review provides an overview of known mechanisms by which MSCs mediate their anti-fibrotic actions and in relation to animal models of pulmonary, liver, renal and cardiac fibrosis. Recent MSC clinical trials results in liver, lung, skin, kidney and hearts are discussed and next steps for future MSC-based therapies including pre-activated or genetically-modified cells, or extracellular vesicles are also considered.
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Affiliation(s)
- Jason S Rockel
- Arthritis Program, University Health Network, Toronto, ON, Canada; Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada.
| | - Razieh Rabani
- Arthritis Program, University Health Network, Toronto, ON, Canada; Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Sowmya Viswanathan
- Arthritis Program, University Health Network, Toronto, ON, Canada; Division of Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Canada; Division of Hematology, Department of Medicine, University of Toronto, Toronto, Canada
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Lanouar S, Aid-Launais R, Oliveira A, Bidault L, Closs B, Labour MN, Letourneur D. Effect of cross-linking on the physicochemical and in vitro properties of pullulan/dextran microbeads. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:77. [PMID: 29845352 DOI: 10.1007/s10856-018-6085-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/05/2018] [Indexed: 06/08/2023]
Abstract
Hydrogels are very promising for tissue engineering as they provide scaffolds and a suitable microenvironment to control cell behavior and tissue regeneration. We used a patented method to obtain beads of pullulan/dextran cross-linked with sodium trimetaphosphate (STMP), that were already described for in vivo bone repair. The aim of this study was to provide a comparative analysis of microbeads made of polysaccharides prepared using three different STMP feeding ratio of 1.5, 2.25 or 3 % w/w. The morphology, swelling and biodegradability of these structures were assessed. Mesenchymal stem cells were also seeded to evaluate the cell organization onto the beads. We found that the amount of phosphorus resulting from the cross-linking was proportional to the introduced STMP concentration. An increase of cross-linking decreased the in vitro enzymatic degradability, and also decreased the swelling in PBS or water. The microstructures observed by SEM and confocal microscopy indicated that homogeneous spherical microbeads were obtained, except for the lower cross-linking ratio where the shapes were altered. Beads hydrated in PBS exhibited a mean diameter ranging from 400 to 550 µm with the decrease of STMP ratio. Cells adhered to the surface of microbeads even in the absence of protein coating. Cell viability studies revealed an increase in cell numbers over two weeks for the highest cross-linked beads, whereas the two lowest STMP concentrations induced a decrease of cell viability. Overall, this study demonstrated that pullulan/dextran hydrogels can be designed as microbeads with adjustable physicochemical and biological properties to fulfill requirements for tissue engineering approaches.
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Affiliation(s)
- Soraya Lanouar
- INSERM U 1148, Laboratory of Vascular Translational Science; X. Bichat Hospital, University Paris Diderot, 46 rue H. Huchard, 75018, Paris, France
- Institut Galilée, University Paris 13, 99 av JB Clément, 93430, Villetaneuse, France
- SILAB SA, Zac de la Nau, 19240, Saint-Viance, France
| | - Rachida Aid-Launais
- INSERM U 1148, Laboratory of Vascular Translational Science; X. Bichat Hospital, University Paris Diderot, 46 rue H. Huchard, 75018, Paris, France
- Institut Galilée, University Paris 13, 99 av JB Clément, 93430, Villetaneuse, France
- FRIM, INSERM UMS 034, University Paris Diderot, X. Bichat Hospital, 75018, Paris, France
| | - Ana Oliveira
- INSERM U 1148, Laboratory of Vascular Translational Science; X. Bichat Hospital, University Paris Diderot, 46 rue H. Huchard, 75018, Paris, France
- Institut Galilée, University Paris 13, 99 av JB Clément, 93430, Villetaneuse, France
| | | | - Brigitte Closs
- SILAB SA, Zac de la Nau, 19240, Saint-Viance, France
- SILTISS SA, Zac de la Nau, 19240, Saint-Viance, France
| | - Marie-Noëlle Labour
- INSERM U 1148, Laboratory of Vascular Translational Science; X. Bichat Hospital, University Paris Diderot, 46 rue H. Huchard, 75018, Paris, France
- Institut Galilée, University Paris 13, 99 av JB Clément, 93430, Villetaneuse, France
| | - Didier Letourneur
- INSERM U 1148, Laboratory of Vascular Translational Science; X. Bichat Hospital, University Paris Diderot, 46 rue H. Huchard, 75018, Paris, France.
- Institut Galilée, University Paris 13, 99 av JB Clément, 93430, Villetaneuse, France.
- SILTISS SA, Zac de la Nau, 19240, Saint-Viance, France.
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Guerrero J, Oliveira H, Aid R, Bareille R, Siadous R, Letourneur D, Mao Y, Kohn J, Amédée J. Influence of the three‐dimensional culture of human bone marrow mesenchymal stromal cells within a macroporous polysaccharides scaffold on Pannexin 1 and Pannexin 3. J Tissue Eng Regen Med 2018; 12:e1936-e1949. [DOI: 10.1002/term.2625] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 10/30/2017] [Accepted: 11/29/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Julien Guerrero
- Inserm, U1026, Tissue BioengineeringUniversity of Bordeaux Bordeaux Cedex France
- Department of BiomedicineUniversity Hospital Basel, University of Basel Basel Switzerland
| | - Hugo Oliveira
- Inserm, U1026, Tissue BioengineeringUniversity of Bordeaux Bordeaux Cedex France
| | - Rachida Aid
- Inserm U1148, LVTS, X. Bichat HospitalUniversity Paris Diderot F‐75018 Paris, Institut Galilée, University Paris 13, 93430 Villetaneuse Paris Cedex 18; University Paris Diderot, CHUX, Bichat Paris France
| | - Reine Bareille
- Inserm, U1026, Tissue BioengineeringUniversity of Bordeaux Bordeaux Cedex France
| | - Robin Siadous
- Inserm, U1026, Tissue BioengineeringUniversity of Bordeaux Bordeaux Cedex France
| | - Didier Letourneur
- Inserm U1148, LVTS, X. Bichat HospitalUniversity Paris Diderot F‐75018 Paris, Institut Galilée, University Paris 13, 93430 Villetaneuse Paris Cedex 18; University Paris Diderot, CHUX, Bichat Paris France
| | - Yong Mao
- The New Jersey Center for Biomaterials, Department of Chemistry and Chemical BiologyRutgers The State University of New Jersey Piscataway NJ USA
| | - Joachim Kohn
- The New Jersey Center for Biomaterials, Department of Chemistry and Chemical BiologyRutgers The State University of New Jersey Piscataway NJ USA
| | - Joëlle Amédée
- Inserm, U1026, Tissue BioengineeringUniversity of Bordeaux Bordeaux Cedex France
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12
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Sondermeijer HP, Witkowski P, Seki T, van der Laarse A, Itescu S, Hardy MA. RGDfK-Peptide Modified Alginate Scaffold for Cell Transplantation and Cardiac Neovascularization. Tissue Eng Part A 2017; 24:740-751. [PMID: 28938862 DOI: 10.1089/ten.tea.2017.0221] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Cell implantation for tissue repair is a promising new therapeutic strategy. Although direct injection of cells into tissue is appealing, cell viability and retention are not very good. Cell engraftment and survival following implantation are dependent on a sufficient supply of oxygen and nutrients through functional microcirculation as well as a suitable local microenvironment for implanted cells. In this study, we describe the development of a porous, biocompatible, three-dimensional (3D) alginate scaffold covalently modified with the synthetic cyclic RGDfK (Arg-Gly-Asp-D-Phe-Lys) peptide. Cyclic RGDfK peptide is protease resistant, highly stable in aqueous solutions, and has high affinity for cellular integrins. Cyclic RGDfK-modified alginate scaffolds were generated using a novel silicone sheet sandwich technique in combination with freeze-gelation, resulting in highly porous nonimmunogenic scaffolds that promoted both human and rodent cell survival in vitro, and neoangiogenesis in vivo. Two months following implantation in abdominal rectus muscles in rats, cyclic RGDfK-modified scaffolds were fully populated by host cells, especially microvasculature without an overt immune response or fibrosis, whereas unmodified control scaffolds did not show cell ingrowth. Importantly, modified scaffolds that were seeded with human mesenchymal precursor cells and were patched to the epicardial surface of infarcted myocardium induced myocardial neoangiogenesis and significantly improved cardiac function. In summary, purified cyclic RGDfK peptide-modified 3D alginate scaffolds are biocompatible and nonimmunogenic, enhance cell viability, promote angiogenesis, and may be used as a means to deliver cells to myocardial infarct areas to improve neovascularization and cardiac function.
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Affiliation(s)
- Hugo P Sondermeijer
- 1 Department of Surgery, Columbia University Medical Center , New York, New York.,2 Department of Medicine, Columbia University Medical Center , New York, New York.,3 Department of Physiology, Maastricht University Medical Center , Maastricht, The Netherlands
| | - Piotr Witkowski
- 4 Section of Transplantation, Department of Surgery, University of Chicago , Chicago, Illinois
| | - Tetsunori Seki
- 1 Department of Surgery, Columbia University Medical Center , New York, New York.,2 Department of Medicine, Columbia University Medical Center , New York, New York
| | - Arnoud van der Laarse
- 5 Department of Cardiology and Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center , Leiden, The Netherlands
| | - Silviu Itescu
- 1 Department of Surgery, Columbia University Medical Center , New York, New York.,2 Department of Medicine, Columbia University Medical Center , New York, New York.,6 Mesoblast Limited, Melbourne, Australia
| | - Mark A Hardy
- 1 Department of Surgery, Columbia University Medical Center , New York, New York
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Suffee N, Le Visage C, Hlawaty H, Aid-Launais R, Vanneaux V, Larghero J, Haddad O, Oudar O, Charnaux N, Sutton A. Pro-angiogenic effect of RANTES-loaded polysaccharide-based microparticles for a mouse ischemia therapy. Sci Rep 2017; 7:13294. [PMID: 29038476 PMCID: PMC5643514 DOI: 10.1038/s41598-017-13444-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/09/2017] [Indexed: 12/20/2022] Open
Abstract
Peripheral arterial disease results from the chronic obstruction of arteries leading to critical hindlimb ischemia. The aim was to develop a new therapeutic strategy of revascularization by using biodegradable and biocompatible polysaccharides-based microparticles (MP) to treat the mouse hindlimb ischemia. For this purpose, we deliver the pro-angiogenic chemokine Regulated upon Activation, Normal T-cell Expressed and Secreted (RANTES)/CCL5 in the mouse ischemic hindlimb, in solution or incorporated into polysaccharide-based microparticles. We demonstrate that RANTES-loaded microparticles improve the clinical score, induce the revascularization and the muscle regeneration in injured mice limb. To decipher the mechanisms underlying RANTES effects in vivo, we demonstrate that RANTES increases the spreading, the migration of human endothelial progenitor cells (EPC) and the formation of vascular network. The main receptors of RANTES i.e. CCR5, syndecan-4 and CD44 expressed at endothelial progenitor cell surface are involved in RANTES-induced in vitro biological effects on EPC. By using two RANTES mutants, [E66A]-RANTES with impaired ability to oligomerize, and [44AANA47]-RANTES mutated in the main RANTES-glycosaminoglycan binding site, we demonstrate that both chemokine oligomerization and binding site to glycosaminoglycans are essential for RANTES-induced angiogenesis in vitro. Herein we improved the muscle regeneration and revascularization after RANTES-loaded MP local injection in mice hindlimb ischemia.
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Affiliation(s)
- N Suffee
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - C Le Visage
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
| | - H Hlawaty
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - R Aid-Launais
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - V Vanneaux
- APHP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, F-75475, Paris, France.,Inserm UMR1160 et CIC de Biothérapies, Institut Universitaire d'Hématologie, Hôpital Saint-Louis, Paris, France
| | - J Larghero
- APHP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, F-75475, Paris, France.,Inserm UMR1160 et CIC de Biothérapies, Institut Universitaire d'Hématologie, Hôpital Saint-Louis, Paris, France
| | - O Haddad
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - O Oudar
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - N Charnaux
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France.,Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, Bondy, France
| | - A Sutton
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France. .,Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, Bondy, France.
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14
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Flégeau K, Pace R, Gautier H, Rethore G, Guicheux J, Le Visage C, Weiss P. Toward the development of biomimetic injectable and macroporous biohydrogels for regenerative medicine. Adv Colloid Interface Sci 2017; 247:589-609. [PMID: 28754381 DOI: 10.1016/j.cis.2017.07.012] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 07/13/2017] [Accepted: 07/13/2017] [Indexed: 01/21/2023]
Abstract
Repairing or replacing damaged human tissues has been the ambitious goal of regenerative medicine for over 25years. One promising approach is the use of hydrated three-dimensional scaffolds, known as hydrogels, which have had good results repairing tissues in pre-clinical trials. Benefiting from breakthrough advances in the field of biology, and more particularly regarding cell/matrix interactions, these hydrogels are now designed to recapitulate some of the fundamental cues of native environments to drive the local tissue regeneration. We highlight the key parameters that are required for the development of smart and biomimetic hydrogels. We also review the wide variety of polymers, crosslinking methods, and manufacturing processes that have been developed over the years. Of particular interest is the emergence of supramolecular chemistries, allowing for the development of highly functional and reversible biohydrogels. Moreover, advances in computer assisted design and three-dimensional printing have revolutionized the production of macroporous hydrogels and allowed for more complex designs than ever before with the opportunity to develop fully reconstituted organs. Today, the field of biohydrogels for regenerative medicine is a prolific area of research with applications for most bodily tissues. On top of these applications, injectable hydrogels and macroporous hydrogels (foams) were found to be the most successful. While commonly associated with cells or biologics as drug delivery systems to increase therapeutic outcomes, they are steadily being used in the emerging fields of organs-on-chip and hydrogel-assisted cell therapy. To highlight these advances, we review some of the recent developments that have been achieved for the regeneration of tissues, focusing on the articular cartilage, bone, cardiac, and neural tissues. These biohydrogels are associated with improved cartilage and bone defects regeneration, reduced left ventricular dilation upon myocardial infarction and display promising results repairing neural lesions. Combining the benefits from each of these areas reviewed above, we envision that an injectable biohydrogel foam loaded with either stem cells or their secretome is the most promising hydrogel solution to trigger tissue regeneration. A paradigm shift is occurring where the combined efforts of fundamental and applied sciences head toward the development of hydrogels restoring tissue functions, serving as drug screening platforms or recreating complex organs.
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15
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Simon-Yarza T, Bataille I, Letourneur D. Cardiovascular Bio-Engineering: Current State of the Art. J Cardiovasc Transl Res 2017; 10:180-193. [DOI: 10.1007/s12265-017-9740-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/24/2017] [Indexed: 12/15/2022]
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16
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Frasca S, Norol F, Le Visage C, Collombet JM, Letourneur D, Holy X, Sari Ali E. Calcium-phosphate ceramics and polysaccharide-based hydrogel scaffolds combined with mesenchymal stem cell differently support bone repair in rats. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:35. [PMID: 28110459 PMCID: PMC5253158 DOI: 10.1007/s10856-016-5839-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 12/29/2016] [Indexed: 06/05/2023]
Abstract
Research in bone tissue engineering is focused on the development of alternatives to autologous bone grafts for bone reconstruction. Although multiple stem cell-based products and biomaterials are currently being investigated, comparative studies are rarely achieved to evaluate the most appropriate approach in this context. Here, we aimed to compare different clinically relevant bone tissue engineering methods and evaluated the kinetic repair and the bone healing efficiency supported by mesenchymal stem cells and two different biomaterials, a new hydrogel scaffold and a commercial hydroxyapatite/tricalcium phosphate ceramic, alone or in combination.Syngeneic mesenchymal stem cells (5 × 105) and macroporous biphasic calcium phosphate ceramic granules (Calciresorb C35®, Ceraver) or porous pullulan/dextran-based hydrogel scaffold were implanted alone or combined in a drilled-hole bone defect in rats. Using quantitative microtomography measurements and qualitative histological examinations, their osteogenic properties were evaluated 7, 30, and 90 days after implantation. Three months after surgery, only minimal repair was evidenced in control rats while newly mineralized bone was massively observed in animals treated with either hydrogels (bone volume/tissue volume = 20%) or ceramics (bone volume/tissue volume = 26%). Repair mechanism and resorption kinetics were strikingly different: rapidly-resorbed hydrogels induced a dense bone mineralization from the edges of the defect while ceramics triggered newly woven bone formation in close contact with the ceramic surface that remained unresorbed. Delivery of mesenchymal stem cells in combination with these biomaterials enhanced both bone healing (>20%) and neovascularization after 1 month, mainly in hydrogel.Osteogenic and angiogenic properties combined with rapid resorption make hydrogels a promising alternative to ceramics for bone repair by cell therapy.
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Affiliation(s)
- Sophie Frasca
- Département Soutien Médico-Chirurgical des Forces, Institut de Recherche Biomédicale des Armées (IRBA), BP 73, 91223, Brétigny-sur-Orge cedex, France.
| | - Françoise Norol
- AP-HP, Service de Biothérapie, Hôpital de la Pitié Salpêtrière, Paris, France
| | - Catherine Le Visage
- INSERM U791, Centre for Osteoarticular and Dental Tissue Engineering, Nantes, France
| | - Jean-Marc Collombet
- Département Soutien Médico-Chirurgical des Forces, Institut de Recherche Biomédicale des Armées (IRBA), BP 73, 91223, Brétigny-sur-Orge cedex, France
| | - Didier Letourneur
- INSERM U1148, LVTS, Université Paris 13, Hôpital X. Bichat, Université Paris Diderot, Paris, France
| | - Xavier Holy
- Département Soutien Médico-Chirurgical des Forces, Institut de Recherche Biomédicale des Armées (IRBA), BP 73, 91223, Brétigny-sur-Orge cedex, France
| | - Elhadi Sari Ali
- AP-HP, Département de Chirurgie Orthopédique et Traumatologie, Hôpital de la Pitié Salpêtrière, Paris, France
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17
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Letourneur D, Bordenave L. [Tissue engineering: a multidisciplinary approach]. Med Sci (Paris) 2017; 33:46-51. [PMID: 28120755 DOI: 10.1051/medsci/20173301008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The prostheses have been around for thousands of years. Initially, it was substitute materials to replace members (leg, foot, hand) or for surgery (suture). The materials used have evolved, but they had never been created for medical applications. Recently, other strategies have emerged to construct or repair tissues. They are based on the use of biological components such as proteins or cells and provide a biological dimension to the term "biomaterial" and they often involve engineering. We illustrate the tissue engineering approaches using the examples of muscle and vessel regeneration strategies in the frame of restorative medicine.
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Affiliation(s)
- Didier Letourneur
- Inserm U1148, Laboratoire de recherche vasculaire translationnelle (LVTS), Université Paris 13, Université Paris Diderot, CHU Xavier Bichat, 46, rue Henri Huchard, F-75018 Paris, France
| | - Laurence Bordenave
- Inserm, Bioingénierie tissulaire, U1026, Université Bordeaux, CHU de Bordeaux, CIC 1401, F-33000 Bordeaux, France
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18
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Karpov AA, Udalova DV, Pliss MG, Galagudza MM. Can the outcomes of mesenchymal stem cell-based therapy for myocardial infarction be improved? Providing weapons and armour to cells. Cell Prolif 2016; 50. [PMID: 27878916 DOI: 10.1111/cpr.12316] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/12/2016] [Indexed: 02/06/2023] Open
Abstract
Use of mesenchymal stem cell (MSC) transplantation after myocardial infarction (MI) has been found to have infarct-limiting effects in numerous experimental and clinical studies. However, recent meta-analyses of randomized clinical trials on MSC-based MI therapy have highlighted the need for improving its efficacy. There are two principal approaches for increasing therapeutic effect of MSCs: (i) preventing massive MSC death in ischaemic tissue and (ii) increasing production of cardioreparative growth factors and cytokines with transplanted MSCs. In this review, we aim to integrate our current understanding of genetic approaches that are used for modification of MSCs to enable their improved survival, engraftment, integration, proliferation and differentiation in the ischaemic heart. Genetic modification of MSCs resulting in increased secretion of paracrine factors has also been discussed. In addition, data on MSC preconditioning with physical, chemical and pharmacological factors prior to transplantation are summarized. MSC seeding on three-dimensional polymeric scaffolds facilitates formation of both intercellular connections and contacts between cells and the extracellular matrix, thereby enhancing cell viability and function. Use of genetic and non-genetic approaches to modify MSC function holds great promise for regenerative therapy of myocardial ischaemic injury.
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Affiliation(s)
- Andrey A Karpov
- Institute of Experimental Medicine, Federal Almazov North-West Medical Research Centre, St Petersburg, Russia.,Department of Pathophysiology, First Pavlov State Medical University of Saint Petersburg, St Petersburg, Russia
| | - Daria V Udalova
- Institute of Experimental Medicine, Federal Almazov North-West Medical Research Centre, St Petersburg, Russia
| | - Michael G Pliss
- Institute of Experimental Medicine, Federal Almazov North-West Medical Research Centre, St Petersburg, Russia
| | - Michael M Galagudza
- Institute of Experimental Medicine, Federal Almazov North-West Medical Research Centre, St Petersburg, Russia.,ITMO University, St Petersburg, Russia
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19
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Luciani N, Du V, Gazeau F, Richert A, Letourneur D, Le Visage C, Wilhelm C. Successful chondrogenesis within scaffolds, using magnetic stem cell confinement and bioreactor maturation. Acta Biomater 2016; 37:101-10. [PMID: 27063490 DOI: 10.1016/j.actbio.2016.04.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 04/05/2016] [Accepted: 04/06/2016] [Indexed: 01/24/2023]
Abstract
UNLABELLED Tissue engineering strategies, such as cellularized scaffolds approaches, have been explored for cartilage replacement. The challenge, however, remains to produce a cartilaginous tissue incorporating functional chondrocytes and being large and thick enough to be compatible with the replacement of articular defects. Here, we achieved unprecedented cartilage tissue production into a porous polysaccharide scaffold by combining of efficient magnetic condensation of mesenchymal stem cells, and dynamic maturation in a bioreactor. In optimal conditions, all the hallmarks of chondrogenesis were enhanced with a 50-fold increase in collagen II expression compared to negative control, an overexpression of aggrecan and collagen XI, and a very low expression of collagen I and RUNX2. Histological staining showed a large number of cellular aggregates, as well as an increased proteoglycan synthesis by chondrocytes. Interestingly, electron microscopy showed larger chondrocytes and a more abundant extracellular matrix. In addition, the periodicity of the neosynthesized collagen fibers matched that of collagen II. These results represent a major step forward in replacement tissue for cartilage defects. STATEMENT OF SIGNIFICANCE A combination of several innovative technologies (magnetic cell seeding, polysaccharide porous scaffolds, and dynamic maturation in bioreactor) enabled unprecedented successful chondrogenesis within scaffolds.
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Affiliation(s)
- Nathalie Luciani
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057 CNRS & University Paris Diderot, Paris F-75205 Cedex 13, France.
| | - Vicard Du
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057 CNRS & University Paris Diderot, Paris F-75205 Cedex 13, France
| | - Florence Gazeau
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057 CNRS & University Paris Diderot, Paris F-75205 Cedex 13, France
| | - Alain Richert
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057 CNRS & University Paris Diderot, Paris F-75205 Cedex 13, France
| | - Didier Letourneur
- Laboratoire de recherche vasculaire translationnelle, INSERM UMR 1148 & University Paris Diderot, Paris, France
| | | | - Claire Wilhelm
- Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057 CNRS & University Paris Diderot, Paris F-75205 Cedex 13, France
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20
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Chen F, Yu S, Liu B, Ni Y, Yu C, Su Y, Zhu X, Yu X, Zhou Y, Yan D. An Injectable Enzymatically Crosslinked Carboxymethylated Pullulan/Chondroitin Sulfate Hydrogel for Cartilage Tissue Engineering. Sci Rep 2016; 6:20014. [PMID: 26817622 PMCID: PMC4730219 DOI: 10.1038/srep20014] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 12/21/2015] [Indexed: 02/08/2023] Open
Abstract
In this study, an enzymatically cross-linked injectable and biodegradable hydrogel system comprising carboxymethyl pullulan-tyramine (CMP-TA) and chondroitin sulfate-tyramine (CS-TA) conjugates was successfully developed under physiological conditions in the presence of both horseradish peroxidase (HRP) and hydrogen peroxide (H2O2) for cartilage tissue engineering (CTTE). The HRP crosslinking method makes this injectable system feasible, minimally invasive and easily translatable for regenerative medicine applications. The physicochemical properties of the mechanically stable hydrogel system can be modulated by varying the weight ratio and concentration of polymer as well as the concentrations of crosslinking reagents. Additionally, the cellular behaviour of porcine auricular chondrocytes encapsulated into CMP-TA/CS-TA hydrogels demonstrates that the hydrogel system has a good cyto-compatibility. Specifically, compared to the CMP-TA hydrogel, these CMP-TA/CS-TA composite hydrogels have enhanced cell proliferation and increased cartilaginous ECM deposition, which significantly facilitate chondrogenesis. Furthermore, histological analysis indicates that the hydrogel system exhibits acceptable tissue compatibility by using a mouse subcutaneous implantation model. Overall, the novel injectable pullulan/chondroitin sulfate composite hydrogels presented here are expected to be useful biomaterial scaffold for regenerating cartilage tissue.
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Affiliation(s)
- Feng Chen
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Songrui Yu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Bing Liu
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, P. R. China
| | - Yunzhou Ni
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yue Su
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Xiaowei Yu
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, 600 Yishan Road, Shanghai, 200233, P. R. China
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, P. R. China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, P. R. China
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21
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Pietrzyk-Nivau A, Poirault-Chassac S, Gandrille S, Derkaoui SM, Kauskot A, Letourneur D, Le Visage C, Baruch D. Three-Dimensional Environment Sustains Hematopoietic Stem Cell Differentiation into Platelet-Producing Megakaryocytes. PLoS One 2015; 10:e0136652. [PMID: 26313154 PMCID: PMC4552162 DOI: 10.1371/journal.pone.0136652] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 08/05/2015] [Indexed: 11/18/2022] Open
Abstract
Hematopoietic stem cells (HSC) differentiate into megakaryocytes (MK), whose function is to release platelets. Attempts to improve in vitro platelet production have been hampered by the low amplification of MK. Providing HSC with an optimal three-dimensional (3D) architecture may favor MK differentiation by mimicking some crucial functions of the bone marrow structure. To this aim, porous hydrogel scaffolds were used to study MK differentiation from HSC as well as platelet production. Flow cytometry, qPCR and perfusion studies showed that 3D was suitable for longer kinetics of CD34+ cell proliferation and for delayed megakaryocytic differentiation far beyond the limited shelf-life observed in liquid culture but also increased production of functional platelets. We provide evidence that these 3D effects were related to 1) persistence of MK progenitors and precursors and 2) prolongation of expression of EKLF and c-myb transcription factors involved in early MK differentiation. In addition, presence of abundant mature MK with increased ploidy and impressive cytoskeleton elongations was in line with expression of NF-E2 transcription factor involved in late MK differentiation. Platelets produced in flow conditions were functional as shown by integrin αIIbβ3 activation following addition of exogenous agonists. This study demonstrates that spatial organization and biological cues synergize to improve MK differentiation and platelet production. Thus, 3D environment constitutes a powerful tool for unraveling the physiological mechanisms of megakaryopoiesis and thrombopoiesis in the bone marrow environment, potentially leading to an improved amplification of MK and platelet production.
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Affiliation(s)
| | | | - Sophie Gandrille
- INSERM, UMR-S 1140, University Paris Descartes, Sorbonne Paris Cité, Paris, France
- AP-HP, Georges Pompidou European Hospital, Department of Hematology, Paris, France
| | - Sidi-Mohammed Derkaoui
- INSERM, UMR-S 1148, University Paris Diderot, Paris; University Paris Nord, Villetaneuse, Sorbonne Paris Cité, France
| | - Alexandre Kauskot
- INSERM, UMR-S 1140, University Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Didier Letourneur
- INSERM, UMR-S 1148, University Paris Diderot, Paris; University Paris Nord, Villetaneuse, Sorbonne Paris Cité, France
| | - Catherine Le Visage
- INSERM, UMR-S 1148, University Paris Diderot, Paris; University Paris Nord, Villetaneuse, Sorbonne Paris Cité, France
| | - Dominique Baruch
- INSERM, UMR-S 1140, University Paris Descartes, Sorbonne Paris Cité, Paris, France
- * E-mail:
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22
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Abstract
PURPOSE OF REVIEW Outcomes of stem cell trials in patients with advanced heart failure have been divergent, which has raised some scepticism about this therapy and led to recommending slowing clinical trials until basic issues have been more thoroughly addressed. It is therefore timely and relevant to examine the current data and discuss how recent findings may change the perspectives of stem cell therapy. RECENT FINDINGS The most important recent change has been a shift in the mechanistic paradigm. Although the initial objective of stem cells was to physically replace dead cardiomyocytes and build a new electromechanically integrated myocardial tissue, it is now recognized that the unavoidable death of most of the transplanted cells makes this objective unrealistic. Indeed, the primary mechanism of action of the cells seems to be paracrine through the release of factors activating the endogenous signalling pathways, leading to cardioprotection. This hypothesis has several implications. First, it leads to focus on the efficiency of early retention, rather than on sustained survival, which, in turn, implies improving delivery approaches, largely through an increased reliance on adjunctive biomaterials; second, it may rationalize the use of allogeneic cells as long as their rejection is delayed to give them enough time for releasing the signalling biomolecules; and, finally, it raises the possibility that transplantation of cells could be replaced by the delivery of their sole secretome, possibly under the form of microvesicles. SUMMARY Put together, these approaches could streamline the translational process and enhance large-scale clinical applications.
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23
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Bellamy V, Vanneaux V, Bel A, Nemetalla H, Emmanuelle Boitard S, Farouz Y, Joanne P, Perier MC, Robidel E, Mandet C, Hagège A, Bruneval P, Larghero J, Agbulut O, Menasché P. Long-term functional benefits of human embryonic stem cell-derived cardiac progenitors embedded into a fibrin scaffold. J Heart Lung Transplant 2014; 34:1198-207. [PMID: 25534019 DOI: 10.1016/j.healun.2014.10.008] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Revised: 09/22/2014] [Accepted: 10/29/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Cardiac-committed cells and biomimetic scaffolds independently improve the therapeutic efficacy of stem cells. In this study we tested the long-term effects of their combination. METHODS Eighty immune-deficient rats underwent permanent coronary artery ligation. Five to 7 weeks later, those with an echocardiographically measured ejection fraction (EF) ≤55% were re-operated on and randomly allocated to receive a cell-free fibrin patch (n = 25), a fibrin patch loaded with 700,000 human embryonic stem cells (ESC) pre-treated to promote early cardiac differentiation (SSEA-1(+) progenitors [n = 30]), or to serve as sham-operated animals (n = 25). Left ventricular function was assessed by echocardiography at baseline and every month thereafter until 4 months. Hearts were then processed for assessment of fibrosis and angiogenesis and a 5-component heart failure score was constructed by integrating the absolute change in left ventricular end-systolic volume (LVESV) between 4 months and baseline, and the quantitative polymerase chain reaction (qPCR)-based expression of natriuretic peptides A and B, myosin heavy chain 7 and periostin. All data were recorded and analyzed in a blinded manner. RESULTS The cell-treated group consistently yielded better functional outcomes than the sham-operated group (p = 0.002 for EF; p = 0.01 for LVESV). Angiogenesis in the border zone was also significantly greater in the cell-fibrin group (p = 0.006), which yielded the lowest heart failure score (p = 0.04 vs sham). Engrafted progenitors were only detected shortly after transplantation; no grafted cells were identified after 4 months. There was no teratoma identified. CONCLUSIONS A fibrin scaffold loaded with ESC-derived cardiac progenitors resulted in sustained improvement in contractility and attenuation of remodeling without sustained donor cell engraftment. A paracrine effect, possibly on innate reparative responses, is a possible mechanism for this enduring effect.
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Affiliation(s)
- Valérie Bellamy
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France
| | - Valérie Vanneaux
- Assistance Publique-Hôpitaux de Paris, Hôpital Saint-Louis, Cell Therapy Unit and Clinical Investigation Center in Biotherapies (CBT501), INSERM UMR1160, Université Sorbonne Paris Cité, Paris, France
| | - Alain Bel
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Department of Cardiovascular Surgery, Université Sorbonne Paris Cité, Paris, France
| | - Hany Nemetalla
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Department of Cardiology, Université Sorbonne Paris Cité, Paris, France
| | - Solène Emmanuelle Boitard
- Sorbonne Universités, UPMC Univ Paris 06, IBPS, UMR CNRS 8256, Biological Adaptation and Ageing, Paris, France
| | - Yohan Farouz
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France
| | - Pierre Joanne
- Sorbonne Universités, UPMC Univ Paris 06, IBPS, UMR CNRS 8256, Biological Adaptation and Ageing, Paris, France
| | | | - Estelle Robidel
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France
| | - Chantal Mandet
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France
| | - Albert Hagège
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Department of Cardiology, Université Sorbonne Paris Cité, Paris, France
| | - Patrick Bruneval
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Department of Pathology, Université Sorbonne Paris Cité, Paris, France
| | - Jérôme Larghero
- Assistance Publique-Hôpitaux de Paris, Hôpital Saint-Louis, Cell Therapy Unit and Clinical Investigation Center in Biotherapies (CBT501), INSERM UMR1160, Université Sorbonne Paris Cité, Paris, France
| | - Onnik Agbulut
- Sorbonne Universités, UPMC Univ Paris 06, IBPS, UMR CNRS 8256, Biological Adaptation and Ageing, Paris, France
| | - Philippe Menasché
- INSERM U970, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Department of Cardiovascular Surgery, Université Sorbonne Paris Cité, Paris, France.
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Cruz ACC, Caon T, Menin Á, Granato R, Boabaid F, Simões CMO. Adipose-derived stem cells incorporated into platelet-rich plasma improved bone regeneration and maturation in vivo. Dent Traumatol 2014; 31:42-8. [PMID: 25336206 DOI: 10.1111/edt.12134] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND/AIM Some cases of tooth loss related to dental trauma require bone-grafting procedures to improve the aesthetics before prosthetic rehabilitation or to enable the installation of dental implants. Bone regeneration is often a challenge and could be largely improved by mesenchymal stem cells therapy. However, the appropriate scaffold for these cells still a problem. This study evaluated the in vivo effect of human adipose-derived stem cells incorporated into autogenous platelet-rich plasma in bone regeneration and maturation. MATERIAL AND METHODS Adipose-derived stem cells were isolated from lipoaspirate tissues and used at passage 4. Immunophenotyping and multilineage differentiation of cells were performed and mesenchymal stem cells characteristics confirmed. Bicortical bone defects (10 mm diameter) were created in the tibia of six beagle dogs to evaluate the effect of adipose-derived stem cells incorporated into platelet-rich plasma scaffolds, platelet-rich plasma alone, autogenous bone grafts, and clot. Samples were removed 6 weeks postsurgeries and analyzed by quantification of primary and secondary bone formation and granulation tissue. RESULTS Adipose-derived stem cells incorporated into platelet-rich plasma scaffolds promoted the highest bone formation (primary + secondary bone) (P < 0.001), the highest bone maturation (secondary bone) (P < 0.001), and the lowest amount of granulation tissue (P < 0.001). CONCLUSIONS Adipose-derived stem cells incorporated into platelet-rich plasma scaffolds promote more bone formation and maturation, and less granulation tissue in bone defects created in canine tibia. Therefore, platelet-rich plasma can be considered as a candidate scaffold for adipose-derived stem cells to promote bone regeneration.
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Cutiongco MFA, Tan MH, Ng MYK, Le Visage C, Yim EKF. Composite pullulan-dextran polysaccharide scaffold with interfacial polyelectrolyte complexation fibers: a platform with enhanced cell interaction and spatial distribution. Acta Biomater 2014; 10:4410-8. [PMID: 24980061 DOI: 10.1016/j.actbio.2014.06.029] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 06/12/2014] [Accepted: 06/20/2014] [Indexed: 11/28/2022]
Abstract
Hydrogels are highly preferred in soft tissue engineering because they recapitulate the hydrated extracellular matrix. Naturally derived polysaccharides, like pullulan and dextran, are attractive materials with which to form hydrophilic polymeric networks due to their non-immunogenic and non-antigenic properties. However, their inherent hydrophilicity prevents adherent cell growth. In this study, we modified pullulan-dextran scaffolds with interfacial polyelectrolyte complexation (IPC) fibers to improve their ability to support adherent cell growth. We showed that the pullulan-dextran-IPC fiber composite scaffold laden with extracellular matrix protein has improved cell adhesion and proliferation compared to the plain polysaccharide scaffold. We also demonstrated the zero-order release kinetics of the biologics bovine serum albumin and vascular endothelial growth factor (VEGF) incorporated in the composite scaffold. Lastly, we showed that the VEGF released from the composite scaffold retained its capacity to stimulate endothelial cell growth. The incorporation of IPC fibers in the pullulan-dextran hydrogel scaffold improved its functionality and biological activity, thus enhancing its potential in tissue engineering applications.
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Affiliation(s)
| | - Ming Hao Tan
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore
| | - Martin Yoke Kuang Ng
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore
| | | | - Evelyn King Fai Yim
- Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore; Mechanobiology Institute of Singapore, National University of Singapore, Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Panda NC, Zuckerman ST, Mesubi OO, Rosenbaum DS, Penn MS, Donahue JK, Alsberg E, Laurita KR. Improved conduction and increased cell retention in healed MI using mesenchymal stem cells suspended in alginate hydrogel. J Interv Card Electrophysiol 2014; 41:117-27. [PMID: 25234602 DOI: 10.1007/s10840-014-9940-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 07/22/2014] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Mesenchymal stem cells (MSCs) have been associated with reduced arrhythmias; however, the mechanism of this action is unknown. In addition, limited retention and survival of MSCs can significantly reduce efficacy. We hypothesized that MSCs can improve impulse conduction and that alginate hydrogel will enhance retention of MSCs in a model of healed myocardial infarction (MI). METHODS AND RESULTS Four weeks after temporary occlusion of the left anterior descending artery (LAD), pigs (n = 13) underwent a sternotomy to access the infarct and then were divided into two studies. In study 1, designed to investigate impulse conduction, animals were administered, by border zone injection, 9-15 million MSCs (n = 7) or phosphate-buffered saline (PBS) (control MI, n = 5). Electrogram width measured in the border zone 2 weeks after injections was significantly decreased with MSCs (-30 ± 8 ms, p < 0.008) but not in shams (4 ± 10 ms, p = NS). Optical mapping from border zone tissue demonstrated that conduction velocity was higher in regions with MSCs (0.49 ± 0.03 m/s) compared to regions without MSCs (0.39 ± 0.03 m/s, p < 0.03). In study 2, designed to investigate MSC retention, animals were administered an equal number of MSCs suspended in either alginate (2 or 1 % w/v) or PBS (n = 6/group) by border zone injection. Greater MSC retention and survival were observed with 2% alginate compared to PBS or 1% alginate. Confocal immunofluorescence demonstrated that MSCs survive and are associated with expression of connexin-43 (Cx43) for either PBS (control), 1%, or 2% alginate. CONCLUSIONS For the first time, we are able to directly associate MSCs with improved impulse conduction and increased retention and survival using an alginate scaffold in a clinically relevant model of healed MI.
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Affiliation(s)
- Nikhil C Panda
- Heart & Vascular Research Center, MetroHealth Campus of Case Western Reserve University, 2500, MetroHealth Drive, Rammelkamp, 6th floor, Cleveland, OH, 44109-1998, USA
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Management of fibrosis: the mesenchymal stromal cells breakthrough. Stem Cells Int 2014; 2014:340257. [PMID: 25132856 PMCID: PMC4123563 DOI: 10.1155/2014/340257] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 06/05/2014] [Accepted: 06/05/2014] [Indexed: 02/06/2023] Open
Abstract
Fibrosis is the endpoint of many chronic inflammatory diseases and is defined by an abnormal accumulation of extracellular matrix components. Despite its slow progression, it leads to organ malfunction. Fibrosis can affect almost any tissue. Due to its high frequency, in particular in the heart, lungs, liver, and kidneys, many studies have been conducted to find satisfactory treatments. Despite these efforts, current fibrosis management therapies either are insufficiently effective or induce severe adverse effects. In the light of these facts, innovative experimental therapies are being investigated. Among these, cell therapy is regarded as one of the best candidates. In particular, mesenchymal stromal cells (MSCs) have great potential in the treatment of inflammatory diseases. The value of their immunomodulatory effects and their ability to act on profibrotic factors such as oxidative stress, hypoxia, and the transforming growth factor-β1 pathway has already been highlighted in preclinical and clinical studies. Furthermore, their propensity to act depending on the microenvironment surrounding them enhances their curative properties. In this paper, we review a large range of studies addressing the use of MSCs in the treatment of fibrotic diseases. The results reported here suggest that MSCs have antifibrotic potential for several organs.
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Meddahi-Pellé A, Legrand A, Marcellan A, Louedec L, Letourneur D, Leibler L. Organ repair, hemostasis, and in vivo bonding of medical devices by aqueous solutions of nanoparticles. Angew Chem Int Ed Engl 2014; 53:6369-73. [PMID: 24740730 PMCID: PMC4320763 DOI: 10.1002/anie.201401043] [Citation(s) in RCA: 145] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Indexed: 01/20/2023]
Abstract
Sutures are traumatic to soft connective tissues, such as liver or lungs. Polymer tissue adhesives require complex in vivo control of polymerization or cross-linking reactions and currently suffer from being toxic, weak, or inefficient within the wet conditions of the body. Herein, we demonstrate using Stöber silica or iron oxide nanoparticles that nanobridging, that is, adhesion by aqueous nanoparticle solutions, can be used in vivo in rats to achieve rapid and strong closure and healing of deep wounds in skin and liver. Nanoparticles were also used to fix polymer membranes to tissues even in the presence of blood flow, such as occurring after liver resection, yielding permanent hemostasis within a minute. Furthermore, medical devices and tissue engineering constructs were fixed to organs such as a beating heart. The simplicity, rapidity, and robustness of nanobridging bode well for clinical applications, surgery, and regenerative medicine.
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Affiliation(s)
- Anne Meddahi-Pellé
- Inserm U1148, LVTS; UniversitéParis 7, Université Paris 13, Sorbonne Paris Cité, Hôpital Bichat, 46 rue rue H Huchard, 75018 Paris (France)
- UniversitéParis 13, Sorbonne Paris Cité, Paris (France)
| | - Aurélie Legrand
- Matière Molle et ChimieUMR 7167 CNRS - ESPCI ParisTech, ESPCI, 10, rue Vauquelin, 75005 Paris (France)
| | - Alba Marcellan
- Matière Molle et ChimieUMR 7167 CNRS - ESPCI ParisTech, ESPCI, 10, rue Vauquelin, 75005 Paris (France)
- Université Pierre et Marie Curie, Sorbonne UniversitésParis (France)
| | - Liliane Louedec
- Inserm U1148, LVTS; UniversitéParis 7, Université Paris 13, Sorbonne Paris Cité, Hôpital Bichat, 46 rue rue H Huchard, 75018 Paris (France)
| | - Didier Letourneur
- Inserm U1148, LVTS; UniversitéParis 7, Université Paris 13, Sorbonne Paris Cité, Hôpital Bichat, 46 rue rue H Huchard, 75018 Paris (France)
| | - Ludwik Leibler
- Matière Molle et ChimieUMR 7167 CNRS - ESPCI ParisTech, ESPCI, 10, rue Vauquelin, 75005 Paris (France)
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Wang Y, Peng W, Liu X, Zhu M, Sun T, Peng Q, Zeng Y, Feng B, Zhi W, Weng J, Wang J. Study of bilineage differentiation of human-bone-marrow-derived mesenchymal stem cells in oxidized sodium alginate/N-succinyl chitosan hydrogels and synergistic effects of RGD modification and low-intensity pulsed ultrasound. Acta Biomater 2014; 10:2518-28. [PMID: 24394634 DOI: 10.1016/j.actbio.2013.12.052] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 12/05/2013] [Accepted: 12/26/2013] [Indexed: 12/15/2022]
Abstract
The level of formation of new bone and vascularization in bone tissue engineering scaffold implants is considered as a critical factor for clinical application. In this study, an approach using an RGD-grafted oxidized sodium alginate/N-succinyl chitosan (RGD-OSA/NSC) hydrogel as a scaffold and low-intensity pulsed ultrasound (LIPUS) as mechanical stimulation was proposed to achieve a high level of formation of new bone and vascularization. An in vitro study of endothelial and osteogenic differentiations of human-bone-marrow-derived mesenchymal stem cells (hMSCs) was conducted to evaluate it. The results showed that RGD-OSA/NSC composite hydrogels presented good biological properties in attachment, proliferation and differentiation of cells. The MTT cell viability assay showed that the total number of cells increased more significantly in the LIPUS-stimulated groups with RGD than that in the control ones; similar results were obtained for alkaline phosphatase activity/staining and mineralized nodule formation assay of osteogenic induction and immunohistochemical test of endothelial induction. The positive synergistic effect of LIPUS and RGD on the enhancement of proliferation and differentiation of hMSCs was observed. These findings suggest that the hybrid use of RGD modification and LIPUS might provide one approach to achieve a high level of formation of new bone and vascularization in bone tissue engineering scaffold implants.
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Meddahi‐Pellé A, Legrand A, Marcellan A, Louedec L, Letourneur D, Leibler L. Organ Repair, Hemostasis, and In Vivo Bonding of Medical Devices by Aqueous Solutions of Nanoparticles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201401043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Anne Meddahi‐Pellé
- Inserm U1148, LVTS; Université Paris 7, Université Paris 13, Sorbonne Paris Cité, Hôpital Bichat, 46 rue rue H Huchard, 75018 Paris (France)
- Université Paris 13, Sorbonne Paris Cité, Paris (France)
| | - Aurélie Legrand
- Matière Molle et Chimie, UMR 7167 CNRS ‐ ESPCI ParisTech, ESPCI, 10, rue Vauquelin, 75005 Paris (France)
| | - Alba Marcellan
- Matière Molle et Chimie, UMR 7167 CNRS ‐ ESPCI ParisTech, ESPCI, 10, rue Vauquelin, 75005 Paris (France)
- Université Pierre et Marie Curie, Sorbonne Universités, Paris (France)
| | - Liliane Louedec
- Inserm U1148, LVTS; Université Paris 7, Université Paris 13, Sorbonne Paris Cité, Hôpital Bichat, 46 rue rue H Huchard, 75018 Paris (France)
| | - Didier Letourneur
- Inserm U1148, LVTS; Université Paris 7, Université Paris 13, Sorbonne Paris Cité, Hôpital Bichat, 46 rue rue H Huchard, 75018 Paris (France)
| | - Ludwik Leibler
- Matière Molle et Chimie, UMR 7167 CNRS ‐ ESPCI ParisTech, ESPCI, 10, rue Vauquelin, 75005 Paris (France)
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Bonnard T, Yang G, Petiet A, Ollivier V, Haddad O, Arnaud D, Louedec L, Bachelet-Violette L, Derkaoui SM, Letourneur D, Chauvierre C, Visage CL. Abdominal aortic aneurysms targeted by functionalized polysaccharide microparticles: a new tool for SPECT imaging. Am J Cancer Res 2014; 4:592-603. [PMID: 24723981 PMCID: PMC3982130 DOI: 10.7150/thno.7757] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 12/16/2013] [Indexed: 02/02/2023] Open
Abstract
Aneurysm diagnostic is nowadays limited by the lack of technology that enables early detection and rupture risk prediction. New non invasive tools for molecular imaging are still required. In the present study, we present an innovative SPECT diagnostic tool for abdominal aortic aneurysm (AAA) produced from injectable polysaccharide microparticles radiolabeled with technetium 99m (99mTc) and functionalized with fucoidan, a sulfated polysaccharide with the ability to target P-Selectin. P-Selectin is a cell adhesion molecule expressed on activated endothelial cells and platelets which can be found in the thrombus of aneurysms, as well as in other vascular pathologies. Microparticles with a maximum hydrodynamic diameter of 4 µm were obtained by crosslinking the polysaccharides dextran and pullulan. They were functionalized with fucoidan. In vitro interactions with human activated platelets were assessed by flow cytometry that demonstrated a specific affinity of fucoidan functionalized microparticles for P-Selectin expressed by activated platelets. For in vivo AAA imaging, microparticles were radiolabeled with 99mTc and intravenously injected into healthy and AAA rats obtained by elastase perfusion through the aorta wall. Animals were scanned by SPECT imaging. A strong contrast enhancement located in the abdominal aorta of AAA rats was obtained, while no signal was obtained in healthy rats or in AAA rats after injection of non-functionalized control microparticles. Histological studies revealed that functionalized radiolabeled polysaccharide microparticles were localized in the AAA wall, in the same location where P-Selectin was expressed. These microparticles therefore constitute a promising SPECT imaging tool for AAA and potentially for other vascular diseases characterized by P-Selectin expression. Future work will focus on validating the efficiency of the microparticles to diagnose these other pathologies and the different stages of AAA. Incorporation of a therapeutic molecule is also considered.
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Hamidi S, Letourneur D, Aid-Launais R, Di Stefano A, Vainchenker W, Norol F, Le Visage C. Fucoidan promotes early step of cardiac differentiation from human embryonic stem cells and long-term maintenance of beating areas. Tissue Eng Part A 2014; 20:1285-94. [PMID: 24354596 DOI: 10.1089/ten.tea.2013.0149] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Somatic stem cells require specific niches and three-dimensional scaffolds provide ways to mimic this microenvironment. Here, we studied a scaffold based on Fucoidan, a sulfated polysaccharide known to influence morphogen gradients during embryonic development, to support human embryonic stem cells (hESCs) differentiation toward the cardiac lineage. A macroporous (pore 200 μm) Fucoidan scaffold was selected to support hESCs attachment and proliferation. Using a protocol based on the cardiogenic morphogen bone morphogenic protein 2 (BMP2) and transforming growth factor (TGFβ) followed by tumor necrosis factor (TNFα), an effector of cardiopoietic priming, we examined the cardiac differentiation in the scaffold compared to culture dishes and embryoid bodies (EBs). At day 8, Fucoidan scaffolds supported a significantly higher expression of the 3 genes encoding for transcription factors marking the early step of embryonic cardiac differentiation NKX2.5 (p<0.05), MEF2C (p<0.01), and GATA4 (p<0.01), confirmed by flow cytometry analysis for MEF2C and NKX2.5. The ability of Fucoidan scaffolds to locally concentrate and slowly release TGFβ and TNFα was confirmed by Luminex technology. We also found that Fucoidan scaffolds supported the late stage of embryonic cardiac differentiation marked by a significantly higher atrial natriuretic factor (ANF) expression (p<0.001), although only rare beating areas were observed. We postulated that absence of mechanical stress in the soft hydrogel impaired sarcomere formation, as confirmed by molecular analysis of the cardiac muscle myosin MYH6 and immunohistological staining of sarcomeric α-actinin. Nevertheless, Fucoidan scaffolds contributed to the development of thin filaments connecting beating areas through promotion of smooth muscle cells, thus enabling maintenance of beating areas for up to 6 months. In conclusion, Fucoidan scaffolds appear as a very promising biomaterial to control cardiac differentiation from hESCs that could be further combined with mechanical stress to promote sarcomere formation at terminal stages of differentiation.
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Affiliation(s)
- Sofiane Hamidi
- 1 INSERM, UMR 1009, Institut Gustave Roussy , Villejuif, France
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Rujitanaroj PO, Aid-Launais R, Chew SY, Le Visage C. Polysaccharide electrospun fibers with sulfated poly(fucose) promote endothelial cell migration and VEGF-mediated angiogenesis. Biomater Sci 2014; 2:843-852. [DOI: 10.1039/c3bm60245a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study demonstrates the potential of fucoidan-incorporated pullulan–dextran fibers as tunable reservoirs for VEGF delivery to promote angiogenesis.
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Affiliation(s)
- Pim-On Rujitanaroj
- Nanyang Technological University
- School of Chemical & Biomedical Engineering
- Singapore 637459, Singapore
| | | | - Sing Yian Chew
- Nanyang Technological University
- School of Chemical & Biomedical Engineering
- Singapore 637459, Singapore
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Zhang Y, Liang X, Lian Q, Tse HF. Perspective and challenges of mesenchymal stem cells for cardiovascular regeneration. Expert Rev Cardiovasc Ther 2013; 11:505-17. [PMID: 23570363 DOI: 10.1586/erc.13.5] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Mesenchymal stem cells (MSCs) exhibit multipotent differentiation potential and can be derived from embryonic, neonatal and adult differentiation stage III tissue sources. While increasing preclinical studies and clinical trials have indicated that MSC-based therapy is a promising strategy for cardiovascular regeneration, there are major challenges to overcome before this stem-cell technology can be widely applied in clinical settings. In this review, the following important issues will be addressed. First, optimal sources of MSC derivation suitable for myocardial repair are not determined. Second, assessments for preclinical and clinical studies of MSCs require more scientific data analysis. Third, mechanisms of MSC-based therapy for cardiovascular regeneration have not been fully understood yet. Finally, the potential benefit-risk ratio of MSC therapy needs to be evaluated systematically. Additionally, future development of MSC therapy will be discussed.
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Affiliation(s)
- Yuelin Zhang
- Cardiology Division, Department of Medicine, University of Hong Kong, Hong Kong
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Fucoidan in a 3D scaffold interacts with vascular endothelial growth factor and promotes neovascularization in mice. Drug Deliv Transl Res 2013; 5:187-97. [DOI: 10.1007/s13346-013-0177-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Di Corato R, Gazeau F, Le Visage C, Fayol D, Levitz P, Lux F, Letourneur D, Luciani N, Tillement O, Wilhelm C. High-resolution cellular MRI: gadolinium and iron oxide nanoparticles for in-depth dual-cell imaging of engineered tissue constructs. ACS NANO 2013; 7:7500-12. [PMID: 23924160 DOI: 10.1021/nn401095p] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Recent advances in cell therapy and tissue engineering opened new windows for regenerative medicine, but still necessitate innovative noninvasive imaging technologies. We demonstrate that high-resolution magnetic resonance imaging (MRI) allows combining cellular-scale resolution with the ability to detect two cell types simultaneously at any tissue depth. Two contrast agents, based on iron oxide and gadolinium oxide rigid nanoplatforms, were used to "tattoo" endothelial cells and stem cells, respectively, with no impact on cell functions, including their capacity for differentiation. The labeled cells' contrast properties were optimized for simultaneous MRI detection: endothelial cells and stem cells seeded together in a polysaccharide-based scaffold material for tissue engineering appeared respectively in black and white and could be tracked, at the cellular level, both in vitro and in vivo. In addition, endothelial cells labeled with iron oxide nanoparticles could be remotely manipulated by applying a magnetic field, allowing the creation of vessel substitutes with in-depth detection of individual cellular components.
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Affiliation(s)
- Riccardo Di Corato
- Laboratoire Matière et Systèmes Complexes, UMR 7057, CNRS and Université Paris Diderot , France
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Guerrero J, Catros S, Derkaoui SM, Lalande C, Siadous R, Bareille R, Thébaud N, Bordenave L, Chassande O, Le Visage C, Letourneur D, Amédée J. Cell interactions between human progenitor-derived endothelial cells and human mesenchymal stem cells in a three-dimensional macroporous polysaccharide-based scaffold promote osteogenesis. Acta Biomater 2013; 9:8200-13. [PMID: 23743130 DOI: 10.1016/j.actbio.2013.05.025] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 05/03/2013] [Accepted: 05/22/2013] [Indexed: 12/12/2022]
Abstract
Several studies have reported the benefits of mesenchymal stem cells (MSCs) for bone tissue engineering. However, vascularization remains one of the main obstacles that must be overcome to reconstruct large bone defects. In vitro prevascularization of the three-dimensional (3-D) constructs using co-cultures of human progenitor-derived endothelial cells (PDECs) with human bone marrow mesenchymal stem cells (HBMSCs) appeared as a potential strategy. However, the crosstalk between the two lineages has been studied in two-dimensional (2-D), but remains unknown in 3-D. The aim of this study is to investigate the cell interactions between PDECs and HBMSCs in a porous matrix composed of polysaccharides. This biodegradable scaffold promotes cell interactions by inducing multicellular aggregates composed of HBMSCs surrounded by PDECs. Cell aggregation contributes to the formation of junctional proteins composed of Connexin43 (Cx43) and VE-cadherin, and an activation of osteoblastic differentiation of HBMSCs stimulated by the presence of PDECs. Inhibition of Cx43 by mimetic peptide 43GAP27 induced a decrease in mRNA levels of Cx43 and all the bone-specific markers. Finally, subcutaneous implantations for 3 and 8 weeks in NOG mice revealed an increase in osteoid formation with the tissue-engineered constructs seeded with HBMSCs/PDECs compared with those loaded with HBMSCs alone. Taking together, these results demonstrate that this 3-D microenvironment favored cell communication, osteogenesis and bone formation.
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Affiliation(s)
- J Guerrero
- Inserm, U1026, Tissue Bioengineering, University Bordeaux Segalen, Bordeaux Cedex 33076, France.
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Vietta GG, Andrades ME, Dall'Alba R, Schneider SIR, Frick LM, Matte U, Biolo A, Rohde LEP, Clausell N. Early use of cardiac troponin-I and echocardiography imaging for prediction of myocardial infarction size in Wistar rats. Life Sci 2013; 93:139-44. [DOI: 10.1016/j.lfs.2013.05.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 05/03/2013] [Accepted: 05/28/2013] [Indexed: 11/27/2022]
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Fisher MB, Mauck RL. Tissue engineering and regenerative medicine: recent innovations and the transition to translation. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:1-13. [PMID: 23253031 DOI: 10.1089/ten.teb.2012.0723] [Citation(s) in RCA: 149] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The field of tissue engineering and regenerative medicine (TERM) has exploded in the last decade. In this Year (or so) in Review, we highlight some of the high impact advances within the field over the past several years. Using the past as our guide and starting with an objective premise, we attempt so to identify recent "hot topics" and transformative publications within the field. Through this process, several key themes emerged: (1) tissue engineering: grafts and materials, (2) regenerative medicine: scaffolds and factors that control endogenous tissue formation, (3) clinical trials, and (4) novel cell sources: induced pluripotent stem cells. Within these focus areas, we summarize the highly impactful articles that emerged from our objective analysis and review additional recent publications to augment and expand upon these key themes. Finally, we discuss where the TERM field may be headed and how to monitor such a broad-based and ever-expanding community.
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Affiliation(s)
- Matthew B Fisher
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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Fricain JC, Schlaubitz S, Le Visage C, Arnault I, Derkaoui SM, Siadous R, Catros S, Lalande C, Bareille R, Renard M, Fabre T, Cornet S, Durand M, Léonard A, Sahraoui N, Letourneur D, Amédée J. A nano-hydroxyapatite--pullulan/dextran polysaccharide composite macroporous material for bone tissue engineering. Biomaterials 2013; 34:2947-59. [PMID: 23375393 DOI: 10.1016/j.biomaterials.2013.01.049] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 01/09/2013] [Indexed: 01/25/2023]
Abstract
Research in bone tissue engineering is focused on the development of alternatives to allogenic and autologous bone grafts that can stimulate bone healing. Here, we present scaffolds composed of the natural hydrophilic polysaccharides pullulan and dextran, supplemented or not with nanocrystalline hydroxyapatite particles (nHA). In vitro studies revealed that these matrices induced the formation of multicellular aggregates and expression of early and late bone specific markers with human bone marrow stromal cells in medium deprived of osteoinductive factors. In absence of any seeded cells, heterotopic implantation in mice and goat, revealed that only the composite macroporous scaffold (Matrix + nHA) (i) retained subcutaneously local growth factors, including Bone Morphogenetic Protein 2 (BMP2) and VEGF165, (ii) induced the deposition of a biological apatite layer, (iii) favored the formation of a dense mineralized tissue subcutaneously in mice, as well osteoid tissue after intramuscular implantation in goat. The composite scaffold was thereafter implanted in orthotopic preclinical models of critical size defects, in small and large animals, in three different bony sites, i.e. the femoral condyle of rat, a transversal mandibular defect and a tibial osteotomy in goat. The Matrix + nHA induced a highly mineralized tissue in the three models whatever the site of implantation, as well as osteoid tissue and bone tissue regeneration in direct contact to the matrix. We therefore propose this composite matrix as a material for stimulating bone cell differentiation of host mesenchymal stem cells and bone formation for orthopedic and maxillofacial surgical applications.
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Molecular fabrications of smart nanobiomaterials and applications in personalized medicine. Adv Drug Deliv Rev 2012; 64:1459-76. [PMID: 22921596 DOI: 10.1016/j.addr.2012.08.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 07/27/2012] [Accepted: 08/09/2012] [Indexed: 12/31/2022]
Abstract
Recent advances in nanotechnology adequately address many of the current challenges in biomedicine. However, to advance medicine we need personalized treatments which require the combination of nanotechnological progress with genetics, molecular biology, gene sequencing, and computational design. This paper reviews the literature of nanoscale biomaterials described to be totally biocompatible, non-toxic, non-immunogenic, and biodegradable and furthermore, have been used or have the potential to be used in personalized biomedical applications such as drug delivery, tissue regeneration, and diagnostics. The nanobiomaterial architecture is discussed as basis for fabrication of novel integrated systems involving cells, growth factors, proteins, cytokines, drug molecules, and other biomolecules with the purpose of creating a universal, all purpose nanobiomedical device for personalized therapies. Nanofabrication strategies toward the development of a platform for the implementation of nanotechnology in personalized medicine are also presented. In addition, there is a discussion on the challenges faced for designing versatile, smart nanobiomaterials and the requirements for choosing a material with tailor made specifications to address the needs of a specific patient.
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Ruvinov E, Sapir Y, Cohen S. Cardiac Tissue Engineering: Principles, Materials, and Applications. ACTA ACUST UNITED AC 2012. [DOI: 10.2200/s00437ed1v01y201207tis009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Serrao GW, Turnbull IC, Ancukiewicz D, Kim DE, Kao E, Cashman TJ, Hadri L, Hajjar RJ, Costa KD. Myocyte-depleted engineered cardiac tissues support therapeutic potential of mesenchymal stem cells. Tissue Eng Part A 2012; 18:1322-33. [PMID: 22500611 DOI: 10.1089/ten.tea.2011.0278] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The therapeutic potential of mesenchymal stem cells (MSCs) for restoring cardiac function after cardiomyocyte loss remains controversial. Engineered cardiac tissues (ECTs) offer a simplified three-dimensional in vitro model system to evaluate stem cell therapies. We hypothesized that contractile properties of dysfunctional ECTs would be enhanced by MSC treatment. ECTs were created from neonatal rat cardiomyocytes with and without bone marrow-derived adult rat MSCs in a type-I collagen and Matrigel scaffold using custom elastomer molds with integrated cantilever force sensors. Three experimental groups included the following: (1) baseline condition ECT consisting only of myocytes, (2) 50% myocyte-depleted ECT, modeling a dysfunctional state, and (3) 50% myocyte-depleted ECT plus 10% MSC, modeling dysfunctional myocardium with intervention. Developed stress (DS) and pacing threshold voltage (VT) were measured using 2-Hz field stimulation at 37°C on culture days 5, 10, 15, and 20. By day 5, DS of myocyte-depleted ECTs was significantly lower than baseline, and VT was elevated. In MSC-supplemented ECTs, DS and VT were significantly better than myocyte-depleted values, approaching baseline ECTs. Findings were similar through culture day 15, but lost significance at day 20. Trends in DS were partly explained by changes in the cell number and alignment with time. Thus, supplementing myocyte-depleted ECTs with MSCs transiently improved contractile function and compensated for a 50% loss of cardiomyocytes, mimicking recent animal studies and clinical trials and supporting the potential of MSCs for myocardial therapy.
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Affiliation(s)
- Gregory W Serrao
- Cardiovascular Cell and Tissue Engineering Laboratory, Cardiovascular Research Center, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029, USA.
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Lavergne M, Derkaoui M, Delmau C, Letourneur D, Uzan G, Le Visage C. Porous Polysaccharide-Based Scaffolds for Human Endothelial Progenitor Cells. Macromol Biosci 2012; 12:901-10. [DOI: 10.1002/mabi.201100431] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Revised: 11/25/2011] [Indexed: 02/01/2023]
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Orabi H, Lin G, Ferretti L, Lin CS, Lue TF. Scaffoldless tissue engineering of stem cell derived cavernous tissue for treatment of erectile function. J Sex Med 2012; 9:1522-34. [PMID: 22513032 DOI: 10.1111/j.1743-6109.2012.02727.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION As one-third of erectile dysfunction (ED) patients do not respond to phosphodiesterase-5 inhibitors, there is great demand for new therapeutic options. Adipose tissue-derived stem cells (ADSCs) represent an ideal source for new ED treatment. AIM To test if ADSCs can be differentiated into smooth muscle cells (SMCs) and endothelial cells (ECs), if these differentiated cells can be used to engineer cavernous tissue, and if this engineered tissue will remain for long time after implantation and integrate into corporal tissue. METHOD Rat ADSCs were isolated and differentiated into SMC and ECs. The differentiated cells were labeled with 5-ethynyl-2-deoxyuridine (EdU) and used to construct cavernous tissue. This engineered tissue was implanted in penises of normal rats. The rats were sacrificed after 1 and 2 months; penis and bone marrow were collected to assess cell survival and inclusion in the penile tissues. MAIN OUTCOME MEASURES The phenotype conversion was checked using morphology, immunocytochemistry (immunohistochemistry [IHC]), and Western blot for SMC and EC markers. The cavernous tissue formation was assessed using rat EC antibody (RECA), calponin, and collagen. The implanted cell survival and incorporation into penis were evaluated with hematoxylin and eosin, Masson's trichrome, and IHC (RECA, calponin, and EdU). RESULTS The phenotype conversion was confirmed with positive staining for SMC and EC markers and Western blot. The formed tissue exhibited architecture comparable to penile cavernous tissue with SMC and ECs and extracellular matrix formation. The implanted cells survived in significant numbers in the penis after 1 and 2 months. They showed proof of SMC and EC differentiation and incorporation into penile tissue. CONCLUSIONS The results showed the ability of ADSCs to differentiate into SMC and ECs and form cavernous tissue. The implanted tissue can survive and integrate into the penile tissues. The cavernous tissue made of ADSCs forms new technology for improvement of in vivo stem cell survival and ED treatment.
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Affiliation(s)
- Hazem Orabi
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA, USA.
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Hinkel R, Boekstegers P, Kupatt C. Adjuvant early and late cardioprotective therapy: access to the heart. Cardiovasc Res 2012; 94:226-36. [PMID: 22318936 DOI: 10.1093/cvr/cvs075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Coronary heart disease is still the leading cause of death in industrialized nations, occurring either as acute coronary occlusion and myocardial infarction or as chronic ischaemic cardiomyopathy caused by continuous obstruction of one or more coronary arteries. Even after successful reperfusion, an additional loss of otherwise vital cardiomyocytes may occur in the primary ischaemic area, called lethal reperfusion injury. In experimental settings, delivery of therapeutic agents targeting the reperfusion injury reduces the infarct size by 30%. In addition to the choice of therapeutic agent and time point, the mode of application may be crucial for the therapeutic success. Therefore, this review focuses on the current and future administration techniques for early and late post-myocardial infarction therapies.
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Affiliation(s)
- Rabea Hinkel
- Medizinische Klinik und Poliklinik I, Klinikum der LMU München, Marchioninistraße 15, Munich, Germany.
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