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Yuan B, Zhang Y, Zhao R, Lin H, Yang X, Zhu X, Zhang K, Mikos AG, Zhang X. A unique biomimetic modification endows polyetherketoneketone scaffold with osteoinductivity by activating cAMP/PKA signaling pathway. SCIENCE ADVANCES 2022; 8:eabq7116. [PMID: 36197987 PMCID: PMC9534509 DOI: 10.1126/sciadv.abq7116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 08/17/2022] [Indexed: 06/16/2023]
Abstract
Osteoinductivity of a biomaterial scaffold can notably enhance the bone healing performance. In this study, we developed a biomimetic and hierarchically porous polyetherketoneketone (PEKK) scaffold with unique osteoinductivity using a combined surface treatment strategy of a sulfonated process and a nano bone-like apatite deposition. In a beagle intramuscular model, the scaffold induced bone formation ectopically after 12-week implantation. The better bone healing ability of the scaffold than the original PEKK was also confirmed in orthotopic sites. After culturing with bone marrow-derived mesenchymal stem cells (BMSCs), the scaffold induced osteogenic differentiation of BMSCs, and the new bone formation could be mainly depending on cell signaling through adenylate cyclase 9, which activates the cyclic adenosine monophosphate/protein kinase A signaling cascade pathways. The current work reports a new osteoinductive synthetic polymeric scaffold with its detailed molecular mechanism of action for bone repair and regeneration.
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Affiliation(s)
- Bo Yuan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Yuxiang Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Rui Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Hai Lin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
| | - Kai Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
- Institute of Regulatory Science for Medical Device, Sichuan University, Chengdu 610064, P. R. China
| | - Antonios G. Mikos
- Departments of Bioengineering and Chemical and Biomolecular Engineering, Rice University, Houston, TX 77251, USA
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
- School of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
- Institute of Regulatory Science for Medical Device, Sichuan University, Chengdu 610064, P. R. China
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Gashti MP, Stir M, Burgener M, Hulliger J, Choobar BG, Nooralian Z, Moghaddam MR. Hydroxypropyl methylcellulose-controlled in vitro calcium phosphate biomineralization. NEW J CHEM 2022. [DOI: 10.1039/d2nj02365b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Scanning pyroelectric microscopy of DCPD single crystals.
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Affiliation(s)
- Mazeyar Parvinzadeh Gashti
- GTI Chemical Solutions, Inc., 29385, Wellford, South Carolina, USA
- InsectaPel, LLC, 29385, Wellford, South Carolina, USA
| | - Manuela Stir
- Department of Chemistry & Biochemistry, University of Berne, Freiestrasse 3 CH-3012, Berne, Switzerland
| | - Matthias Burgener
- Department of Chemistry & Biochemistry, University of Berne, Freiestrasse 3 CH-3012, Berne, Switzerland
| | - Jürg Hulliger
- Department of Chemistry & Biochemistry, University of Berne, Freiestrasse 3 CH-3012, Berne, Switzerland
| | - Behnam Ghalami Choobar
- Department of chemical engineering, Amirkabir University of technology (Tehran Polytechnic), Tehran, Iran
| | - Zoha Nooralian
- Young Researchers and Elites Club, Yadegar-e-Imam Khomeini (RAH) Branch, Islamic Azad University, Tehran, Iran
| | - Milad Rahimi Moghaddam
- Faculty of Industrial Engineering, Khajeh Nasir Toosi University of Technology, Tehran, Iran
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Nallusamy J, Das RK. Hydrogels and Their Role in Bone Tissue Engineering: An Overview. J Pharm Bioallied Sci 2021; 13:S908-S912. [PMID: 35017896 PMCID: PMC8686869 DOI: 10.4103/jpbs.jpbs_237_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 09/23/2021] [Accepted: 04/19/2021] [Indexed: 12/24/2022] Open
Abstract
An increasing incidence of the bone damage either due to trauma or a wide range of diseases related to bone necessitates the advent of new technologies or modification of the existing pattern of treatment to deliver utmost care to an individual thereby helping them to lead a normal and healthy life. Revolutionary changes in the field of tissue engineering (TE) pave a way from repair to regeneration of human tissues and restoring the health of an individual. Among the numerous biomaterials available, hydrogel emerges as a promising source of scaffold material in the field of bone TE (BTE). This article presents an overview on hydrogels and their role in BTE.
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Affiliation(s)
- Jaisanghar Nallusamy
- Centre for Stem Cell and Regenerative Medicine, Sree Anjaneya Institute of Dental Sciences, Modakkallur, Kozhikode, Kerala, India
| | - Raunak Kumar Das
- Center for Biomaterials Cellular and Molecular Theranostics, VIT University, Vellore, Tamil Nadu, India
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Flegeau K, Gauthier O, Rethore G, Autrusseau F, Schaefer A, Lesoeur J, Veziers J, Brésin A, Gautier H, Weiss P. Injectable silanized hyaluronic acid hydrogel/biphasic calcium phosphate granule composites with improved handling and biodegradability promote bone regeneration in rabbits. Biomater Sci 2021; 9:5640-5651. [PMID: 34254604 DOI: 10.1039/d1bm00403d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Biphasic calcium phosphate (BCP) granules are osteoconductive biomaterials used in clinics to favor bone reconstruction. Yet, poor cohesivity, injectability and mechanical properties restrain their use as bone fillers. In this study, we incorporated BCP granules into in situ forming silanized hyaluronic acid (Si-HA) and hydroxypropylmethylcellulose (Si-HPMC) hydrogels. Hydrogel composites were shown to be easily injectable (F < 30 N), with fast hardening properties (<5 min), and similar mechanical properties (E∼ 60 kPa). In vivo, both hydrogels were well tolerated by the host, but showed different biodegradability with Si-HA gels being partially degraded after 21d, while Si-HPMC gels remained stable. Both composites were easily injected into critical size rabbit defects and remained cohesive. After 4 weeks, Si-HPMC/BCP led to poor bone healing due to a lack of degradation. Conversely, Si-HA/BCP composites were fully degraded and beneficially influenced bone regeneration by increasing the space available for bone ingrowth, and by accelerating BCP granules turnover. Our study demonstrates that the degradation rate is key to control bone regeneration and that Si-HA/BCP composites are promising biomaterials to regenerate bone defects.
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Affiliation(s)
- Killian Flegeau
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and HTL S.A.S, Javené, France
| | - Olivier Gauthier
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Department of Experimental Surgery, CRIP, Oniris, Nantes, F-44300, France
| | - Gildas Rethore
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and CHU Nantes, PHU4 OTONN, Nantes F-44093, France
| | - Florent Autrusseau
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Ecole Polytechnique de l'Université de Nantes, rue Ch. Pauc, Nantes, F-44300, France
| | - Aurélie Schaefer
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | - Julie Lesoeur
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | - Joëlle Veziers
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and CHU Nantes, PHU4 OTONN, Nantes F-44093, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | | | - Hélène Gautier
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Université de Nantes, Faculté de Pharmacie, Laboratoire de Pharmacie Galénique, Nantes F-44042, France
| | - Pierre Weiss
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and CHU Nantes, PHU4 OTONN, Nantes F-44093, France
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Girard N, Cauvin ERJ, Gauthier O, Gatel L. The Use of Biphasic Calcium Phosphate Substitute (BCP) in Mandibular Defects in Dogs: Use of CBCT to Evaluate Bone Healing. J Vet Dent 2021; 37:210-219. [PMID: 33550889 DOI: 10.1177/0898756421989120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study aimed to assess the use of cone beam computed tomography (CBCT) to follow-up bone healing of mandibular bone defects in dogs, filled with a combination of autologous blood and millimetric BCP granules. CBCT was performed ≥4 weeks postoperatively. CBCT gray-scale values were measured from multiplanar reconstructions of the defects and compared to that of normal contralateral mandibular bone and to pure BCP/blood composite time 0 (T0) value. Other parameters, determined by affecting grades according to specific criteria included: bone ridge margin restoration; biomaterial homogeneity; bone-biomaterial interface. Results: 8 dogs with 14 defects were included. Median age was 7.2 years (1-15 years). Follow-up CBCT was performed 1 to 7.5 months postoperatively (mean 3.3 months). Defect CBCT gray-scale values at follow-up were significantly greater than T0 (p < 0.05). Ratios of maximum and minimum densities of the defects to contralateral mandibular bone followed a linear correlation with time (p < 0.05). The bone ridge margin was adequately restored in all the defects and significantly correlated with time (p = 0.03). Biomaterial homogeneity was fair to good in 11 defects and significantly correlated with the bone ridge margin parameter (p = 0.05) and time (p = 0.006). There was no significant correlation with the bone-material interface. The latter was satisfactory in 12 defects and significantly correlated with time (p = 0.01) but not with the other parameters. The biomaterial was more homogeneous in smaller defects and with increasing time. CBCT allowed effective assessment of bone healing via the measurement of CBCT gray-scale values and assessment of multiple radiological variables.
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Affiliation(s)
- Nicolas Girard
- Azurvet Veterinary Referal Center, Saint Laurent du Var, France
| | | | - Olivier Gauthier
- Department of Small Animal Surgery and Dentistry, 173572Oniris College of Veterinary Medicine, Nantes, France
| | - Laure Gatel
- Azurvet Veterinary Referal Center, Saint Laurent du Var, France
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Réthoré G, Boyer C, Kouadio K, Toure A, Lesoeur J, Halgand B, Jordana F, Guicheux J, Weiss P. Silanization of Chitosan and Hydrogel Preparation for Skeletal Tissue Engineering. Polymers (Basel) 2020; 12:polym12122823. [PMID: 33261192 PMCID: PMC7761294 DOI: 10.3390/polym12122823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022] Open
Abstract
Tissue engineering is a multidisciplinary field that relies on the development of customized biomaterial to support cell growth, differentiation and matrix production. Toward that goal, we designed the grafting of silane groups onto the chitosan backbone (Si-chito) for the preparation of in situ setting hydrogels in association with silanized hydroxypropyl methylcellulose (Si-HPMC). Once functionalized, the chitosan was characterized, and the presence of silane groups and its ability to gel were demonstrated by rheology that strongly suggests the presence of silane groups. Throughout physicochemical investigations, the Si-HPMC hydrogels containing Si-chito were found to be stiffer with an injection force unmodified. The presence of chitosan within the hydrogel has demonstrated a higher adhesion of the hydrogel onto the surface of tissues. The results of cell viability assays indicated that there was no cytotoxicity of Si-chito hydrogels in 2D and 3D culture of human SW1353 cells and human adipose stromal cells, respectively. Moreover, Si-chito allows the transplantation of human nasal chondrocytes in the subcutis of nude mice while maintaining their viability and extracellular matrix secretory activity. To conclude, Si-chito mixed with Si-HPMC is an injectable, self-setting and cytocompatible hydrogel able to support the in vitro and in vivo viability and activity of hASC.
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Affiliation(s)
- Gildas Réthoré
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Cécile Boyer
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
| | - Kouakou Kouadio
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
| | - Amadou Toure
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- Department of Odontology, Faculty of Medicine, Pharmacy and Odontology, University Cheikh Anta DIOP, 12500 Dakar, Senegal
| | - Julie Lesoeur
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
| | - Boris Halgand
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Fabienne Jordana
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Jérôme Guicheux
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Pierre Weiss
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
- Correspondence:
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Flegeau K, Toquet C, Rethore G, d'Arros C, Messager L, Halgand B, Dupont D, Autrusseau F, Lesoeur J, Veziers J, Bordat P, Bresin A, Guicheux J, Delplace V, Gautier H, Weiss P. In Situ Forming, Silanized Hyaluronic Acid Hydrogels with Fine Control Over Mechanical Properties and In Vivo Degradation for Tissue Engineering Applications. Adv Healthc Mater 2020; 9:e2000981. [PMID: 32864869 DOI: 10.1002/adhm.202000981] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/09/2020] [Indexed: 12/19/2022]
Abstract
In situ forming hydrogels that can be injected into tissues in a minimally-invasive fashion are appealing as delivery vehicles for tissue engineering applications. Ideally, these hydrogels should have mechanical properties matching those of the host tissue, and a rate of degradation adapted for neo-tissue formation. Here, the development of in situ forming hyaluronic acid hydrogels based on the pH-triggered condensation of silicon alkoxide precursors into siloxanes is reported. Upon solubilization and pH adjustment, the low-viscosity precursor solutions are easily injectable through fine-gauge needles prior to in situ gelation. Tunable mechanical properties (stiffness from 1 to 40 kPa) and associated tunable degradability (from 4 days to more than 3 weeks in vivo) are obtained by varying the degree of silanization (from 4.3% to 57.7%) and molecular weight (120 and 267 kDa) of the hyaluronic acid component. Following cell encapsulation, high cell viability (> 80%) is obtained for at least 7 days. Finally, the in vivo biocompatibility of silanized hyaluronic acid gels is verified in a subcutaneous mouse model and a relationship between the inflammatory response and the crosslink density is observed. Silanized hyaluronic acid hydrogels constitute a tunable hydrogel platform for material-assisted cell therapies and tissue engineering applications.
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Affiliation(s)
- Killian Flegeau
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Claire Toquet
- Department of Pathology University Hospital of Nantes Nantes F‐44042 France
| | - Gildas Rethore
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Cyril d'Arros
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Léa Messager
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Boris Halgand
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Davy Dupont
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Florent Autrusseau
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Julie Lesoeur
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- SC3M SFR Santé F. Bonamy FED 4203 UMS Inserm 016 CNRS 3556 Nantes F‐44042 France
| | - Joëlle Veziers
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
- SC3M SFR Santé F. Bonamy FED 4203 UMS Inserm 016 CNRS 3556 Nantes F‐44042 France
| | | | | | - Jérôme Guicheux
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Vianney Delplace
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Hélène Gautier
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- Université de Nantes Faculté de Pharmacie Laboratoire de Pharmacie Galénique Nantes F‐44042 France
| | - Pierre Weiss
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
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Schaschkow A, Sigrist S, Mura C, Barthes J, Vrana NE, Czuba E, Lemaire F, Neidl R, Dissaux C, Lejay A, Lavalle P, Bruant-Rodier C, Bouzakri K, Pinget M, Maillard E. Glycaemic control in diabetic rats treated with islet transplantation using plasma combined with hydroxypropylmethyl cellulose hydrogel. Acta Biomater 2020; 102:259-272. [PMID: 31811957 DOI: 10.1016/j.actbio.2019.11.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 11/15/2019] [Accepted: 11/22/2019] [Indexed: 12/18/2022]
Abstract
Islet transplantation is one of the most efficient cell therapies used in clinics and could treat a large proportion of patients with diabetes. However, it is limited by the high requirement of pancreas necessary to provide the sufficient surviving islet mass in the hepatic tissue and restore normoglycaemia. Reduction in organ procurement requirements could be achieved by extrahepatic transplantation using a biomaterial that enhances islet survival and function. We report a plasma-supplemented hydroxypropyl methylcellulose (HPMC) hydrogel, engineered specifically using a newly developed technique for intra-omental islet infusion, known as hOMING (h-Omental Matrix Islet filliNG). The HPMC hydrogel delivered islets with better performance than that of the classical intrahepatic infusion. After the validation of the HPMC suitability for islets in vivo and in vitro, plasma supplementation modified the rheological properties of HPMC without affecting its applicability with hOMING. The biomaterial association was proven to be more efficient both in vitro and in vivo, with better islet viability and function than that of the current clinical intrahepatic delivery technique. Indeed, when the islet mass was decreased by 25% or 35%, glycaemia control was observed in the group of plasma-supplemented hydrogels, whereas no regulation was observed in the hepatic group. Plasma gelation, observed immediately post infusion, decreased anoïkis and promoted vascularisation. To conclude, the threshold mass for islet transplantation could be decreased using HPMC-Plasma combined with the hOMING technique. The simplicity of the hOMING technique and the already validated use of its components could facilitate its transfer to clinics. STATEMENT OF SIGNIFICANCE: One of the major limitations for the broad deployment of current cell therapy for brittle type 1 diabetes is the islets' destruction during the transplantation process. Retrieved from their natural environment, the islets are grafted into a foreign tissue, which triggers massive cell loss. It is mandatory to provide the islets with an 3D environment specifically designed for promoting isletimplantation to improve cell therapy outcomes. For this aim, we combined HPMC and plasma. HPMC provides suitable rheological properties to the plasma to be injectable and be maintained in the omentum. Afterwards, the plasma polymerises around the graft in vivo, thereby allowing their optimal integration into their transplantation site. As a result, the islet mass required to obtain glycaemic control was reduced by 35%.
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9
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Pereira I, Fraga S, Maltez L, Requicha J, Guardão L, Oliveira J, Prada J, Alves H, Santos JD, Teixeira JP, Pereira JE, Soares R, Gama FM. In vivo systemic toxicity assessment of an oxidized dextrin-based hydrogel and its effectiveness as a carrier and stabilizer of granular synthetic bone substitutes. J Biomed Mater Res A 2019; 107:1678-1689. [PMID: 30920095 DOI: 10.1002/jbm.a.36683] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 02/25/2019] [Accepted: 03/22/2019] [Indexed: 11/11/2022]
Abstract
The worldwide incidence of bone disorders is raising, mainly due to aging population. The lack of effective treatments is pushing the development of synthetic bone substitutes (SBSs). Most ceramic-based SBSs commercially available display limited handling properties. Attempting to solve these issues and achieve wider acceptance by the clinicians, granular ceramics have been associated with hydrogels (HGs) to produce injectable/moldable SBSs. Dextrin, a low-molecular-weight carbohydrate, was used to develop a fully resorbable and injectable HG. It was first oxidized with sodium periodate and then cross-linked with adipic acid dihydrazide. The in vivo biocompatibility and safety of the dextrin-based HG was assessed by subacute systemic toxicity and skin sensitization tests, using rodent models. The results showed that the HG did not induce any systemic toxic effect, skin reaction, or genotoxicity, neither impaired the bone repair/regeneration process. Then, the HG was successfully combined with granular bone substitute, registered as Bonelike (250-500 μm) to obtain a moldable/injectable SBS, which was implanted in tibial fractures in goats for 3 and 6 weeks. The obtained results showed that HG allowed the stabilization of the granules into the defect, ensuring effective handling, and molding properties of the formulation, as well as an efficient cohesion of the granules. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1678-1689, 2019.
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Affiliation(s)
- Isabel Pereira
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Sónia Fraga
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Dr. Ricardo Jorge, 4000-053, Porto, Portugal.,EPIUnit - Instituto de Saúde Pública, Universidade do Porto, 4050-600, Porto, Portugal
| | - Luís Maltez
- CECAV - Animal and Veterinary Research Centre, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal
| | - João Requicha
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal
| | - Luísa Guardão
- Animal House Unit, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - Joana Oliveira
- Animal House Unit, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - Justina Prada
- CECAV - Animal and Veterinary Research Centre, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal
| | - Helena Alves
- Departamento de Promoção da Saúde e Prevenção de Doenças Não Transmissíveis, Instituto Nacional de Saúde Dr. Ricardo Jorge, 4000-053, Porto, Portugal
| | - José Domingos Santos
- REQUIMTE-LAQV, Departamento de Engenharia Metalúrgica e Materiais, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, Porto, 4200-465, Portugal
| | - João Paulo Teixeira
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Dr. Ricardo Jorge, 4000-053, Porto, Portugal.,EPIUnit - Instituto de Saúde Pública, Universidade do Porto, 4050-600, Porto, Portugal
| | - José Eduardo Pereira
- CECAV - Animal and Veterinary Research Centre, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5001-801, Vila Real, Portugal
| | - Raquel Soares
- Department of Biomedicine, Unit of Biochemistry, Faculty of Medicine, i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, 4200-319, Portugal
| | - Francisco Miguel Gama
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
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10
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Tourné-Péteilh C, Robin B, Lions M, Martinez J, Mehdi A, Subra G, Devoisselle JM. Combining sol–gel and microfluidics processes for the synthesis of protein-containing hybrid microgels. Chem Commun (Camb) 2019; 55:13112-13115. [DOI: 10.1039/c9cc04963k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biocompatible encapsulation of proteins in hybrid microgels of a silylated hydrogel, focused on soft procedures and cross-linking conditions.
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Affiliation(s)
| | | | | | | | - Ahmad Mehdi
- ICGM
- University of Montpellier
- CNRS
- ENSCM
- Montpellier
| | - Gilles Subra
- IBMM
- University of Montpellier
- CNRS
- ENSCM
- Montpellier
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11
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Xie F, Boyer C, Gaborit V, Rouillon T, Guicheux J, Tassin JF, Geoffroy V, Réthoré G, Weiss P. A Cellulose/Laponite Interpenetrated Polymer Network (IPN) Hydrogel: Controllable Double-Network Structure with High Modulus. Polymers (Basel) 2018; 10:polym10060634. [PMID: 30966668 PMCID: PMC6403786 DOI: 10.3390/polym10060634] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/29/2018] [Accepted: 06/05/2018] [Indexed: 12/19/2022] Open
Abstract
Laponite XLS™, which is a synthetic clay of nanometric dimensions containing a peptizing agent, has been associated with silanized hydroxypropylmethylcellulose (Si-HPMC) to form, after crosslinking, a novel composite hydrogel. Different protocols of sample preparation were used, leading to different morphologies. A key result was that the storage modulus of Si-HPMC/XLS composite hydrogel could be increased ten times when compared to that of pure Si-HPMC hydrogel using 2 wt % of Laponite. The viscoelastic properties of the composite formulations indicated that chemical and physical network structures co-existed in the Si-HPMC/XLS composite hydrogel. Images that were obtained from confocal laser scanning microscopy using labelled Laponite XLS in the composite hydrogels show two co-continuous areas: red light area and dark area. The tracking of fluorescent microspheres motions in the composite formulations revealed that the red-light area was a dense structure, whereas the dark area was rather loose without aggregated Laponite. This novel special double-network structure facilitates the composite hydrogel to be an adapted biomaterial for specific tissue engineering. Unfortunately, cytotoxicity’s assays suggested that XLS Laponites are cytotoxic at low concentration. This study validates that the hybrid interpenetrated network IPN hydrogel has a high modulus that has adapted for tissue engineering, but the cell’s internalization of Laponites has to be controlled.
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Affiliation(s)
- Fan Xie
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
- CNRS UMR6283, Institut des Molécules et Matériaux du Mans (IMMM), Le Mans Université, F-72000 Le Mans, France.
| | - Cécile Boyer
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
- School of Dentistry, Université de Nantes, F-44042 Nantes, France.
- Nantes University Hospital, CHU Nantes, PHU4 OTONN, F-44042 Nantes, France.
| | - Victor Gaborit
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
| | - Thierry Rouillon
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
- School of Dentistry, Université de Nantes, F-44042 Nantes, France.
| | - Jérôme Guicheux
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
- School of Dentistry, Université de Nantes, F-44042 Nantes, France.
- Nantes University Hospital, CHU Nantes, PHU4 OTONN, F-44042 Nantes, France.
| | - Jean-François Tassin
- CNRS UMR6283, Institut des Molécules et Matériaux du Mans (IMMM), Le Mans Université, F-72000 Le Mans, France.
| | - Valérie Geoffroy
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
- School of Dentistry, Université de Nantes, F-44042 Nantes, France.
| | - Gildas Réthoré
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
- School of Dentistry, Université de Nantes, F-44042 Nantes, France.
- Nantes University Hospital, CHU Nantes, PHU4 OTONN, F-44042 Nantes, France.
| | - Pierre Weiss
- Regenerative Medicine and Skeleton (RMeS), INSERM UMR_S1229, Université de Nantes, Centre Hospitalier Universitaire de Nantes, ONIRIS, F-44042 Nantes, France.
- School of Dentistry, Université de Nantes, F-44042 Nantes, France.
- Nantes University Hospital, CHU Nantes, PHU4 OTONN, F-44042 Nantes, France.
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12
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Figueiredo L, Pace R, D'Arros C, Réthoré G, Guicheux J, Le Visage C, Weiss P. Assessing glucose and oxygen diffusion in hydrogels for the rational design of 3D stem cell scaffolds in regenerative medicine. J Tissue Eng Regen Med 2018; 12:1238-1246. [DOI: 10.1002/term.2656] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 01/17/2018] [Accepted: 02/17/2018] [Indexed: 12/14/2022]
Affiliation(s)
- L. Figueiredo
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton; Université de Nantes, ONIRIS; Nantes France
- UFR Odontologie; Université de Nantes; Nantes France
| | - R. Pace
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton; Université de Nantes, ONIRIS; Nantes France
- UFR Odontologie; Université de Nantes; Nantes France
| | - C. D'Arros
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton; Université de Nantes, ONIRIS; Nantes France
- UFR Odontologie; Université de Nantes; Nantes France
| | - G. Réthoré
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton; Université de Nantes, ONIRIS; Nantes France
- UFR Odontologie; Université de Nantes; Nantes France
| | - J. Guicheux
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton; Université de Nantes, ONIRIS; Nantes France
- UFR Odontologie; Université de Nantes; Nantes France
- CHU Nantes, PHU 4 OTONN; Nantes France
| | - C. Le Visage
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton; Université de Nantes, ONIRIS; Nantes France
- UFR Odontologie; Université de Nantes; Nantes France
| | - P. Weiss
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton; Université de Nantes, ONIRIS; Nantes France
- UFR Odontologie; Université de Nantes; Nantes France
- CHU Nantes, PHU 4 OTONN; Nantes France
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13
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Safwat E, Hassan ML, Saniour S, Zaki DY, Eldeftar M, Saba D, Zazou M. Injectable TEMPO-oxidized nanofibrillated cellulose/biphasic calcium phosphate hydrogel for bone regeneration. J Biomater Appl 2018; 32:1371-1381. [PMID: 29554839 DOI: 10.1177/0885328218763866] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Nanofibrillated cellulose, obtained from rice straw agricultural wastes was used as a substrate for the preparation of a new injectable and mineralized hydrogel for bone regeneration. Tetramethyl pyridine oxyl (TEMPO) oxidized nanofibrillated cellulose, was mineralized through the incorporation of a prepared and characterized biphasic calcium phosphate at a fixed ratio of 50 wt%. The TEMPO-oxidized rice straw nanofibrillated cellulose was characterized using transmission electron microscopy, Fourier transform infrared, and carboxylic content determination. The injectability and viscosity of the prepared hydrogel were evaluated using universal testing machine and rheometer testing, respectively. Cytotoxicity and alkaline phosphatase level tests on osteoblast like-cells for in vitro assessment of the biocompatibility were investigated. Results revealed that the isolated rice straw nanofibrillated cellulose is a nanocomposite of the cellulose nanofibers and silica nanoparticles. Rheological properties of the tested materials are suitable for use as injectable material and of nontoxic effect on osteoblast-like cells, as revealed by the positive alkaline phosphate assay. However, nanofibrillated cellulose/ biphasic calcium phosphate hydrogel showed higher cytotoxicity and lower bioactivity test results when compared to that of nanofibrillated cellulose.
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Affiliation(s)
- Engie Safwat
- 1 Restorative and Dental Materials Department, National Research Centre, Dokki, Giza, Egypt
| | - Mohammad L Hassan
- 2 Cellulose and Paper Department & Centre of Excellence for Advanced Sciences, Dokki, Giza, Egypt.,3 Egypt Nanotechnology Centre, Cairo University, El-Sheikh Zayed Campus, Egypt
| | - Sayed Saniour
- 4 Biomaterials Department, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
| | - Dalia Yehia Zaki
- 1 Restorative and Dental Materials Department, National Research Centre, Dokki, Giza, Egypt
| | | | - Dalia Saba
- 4 Biomaterials Department, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Zazou
- 1 Restorative and Dental Materials Department, National Research Centre, Dokki, Giza, Egypt
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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: 64] [Impact Index Per Article: 9.1] [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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Laurent R, Nallet A, de Billy B, Obert L, Nicod L, Meyer C, Layrolle P, Zwetyenga N, Gindraux F. Fresh and in vitro osteodifferentiated human amniotic membrane, alone or associated with an additional scaffold, does not induce ectopic bone formation in Balb/c mice. Cell Tissue Bank 2016; 18:17-25. [PMID: 27999996 DOI: 10.1007/s10561-016-9605-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 12/08/2016] [Indexed: 01/08/2023]
Abstract
The human amniotic membrane (hAM) has been successfully used as a natural carrier containing amniotic mesenchymal stromal cells, epithelial cells and growth factors. It has a little or no immunogenicity, and possesses useful anti-microbial, anti-inflammatory, anti-fibrotic and analgesic properties. It has been used for many years in several indications for soft tissue repair. We previously reported that hAM represents a natural and preformed sheet containing highly potent stem cells, and could thus be used for bone repair. Indeed, native hAM possesses pre-osteoblastic potential that can easily be stimulated, even as far as mineralization, by means of in vitro osteogenic culture. However, cell culture induces damage to the tissue, as well as to cell phenotype and function. The aim of this study was to evaluate new bone formation by fresh and in vitro osteodifferentiated hAM, alone or associated with an additional scaffold presenting osteoinductive properties. Moreover, we also aimed to determine the effect of in vitro hAM pre-osteodifferentiation on its in vivo biocompatibility/tissue degradation. Results showed that neither fresh nor osteodifferentiated hAM induced ectopic bone formation, whether or not it was associated with the osteoinductive scaffold. Secondly, fresh and osteodifferentiated hAM presented similar in vivo tissue degradation, suggesting that in vitro hAM pre-osteodifferentiation did not influence its in vivo biocompatibility.
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Affiliation(s)
- Romain Laurent
- Paediatric Surgery Service, University Hospital of Besancon, Besançon, France
| | | | - Benoit de Billy
- Paediatric Surgery Service, University Hospital of Besancon, Besançon, France.,Nanomedicine Lab, Imagery and Therapeutics (EA 4662), SFR FED 4234, University of Franche-Comté, Besançon, France
| | - Laurent Obert
- Nanomedicine Lab, Imagery and Therapeutics (EA 4662), SFR FED 4234, University of Franche-Comté, Besançon, France.,Orthopaedic, Traumatology and Plastic Surgery Service, University Hospital of Besancon, Besançon, France
| | - Laurence Nicod
- Nanomedicine Lab, Imagery and Therapeutics (EA 4662), SFR FED 4234, University of Franche-Comté, Besançon, France
| | - Christophe Meyer
- Nanomedicine Lab, Imagery and Therapeutics (EA 4662), SFR FED 4234, University of Franche-Comté, Besançon, France.,Maxillofacial Surgery Service, University Hospital of Besancon, Besançon, France
| | - Pierre Layrolle
- Inserm U957, Laboratory for Pathophysiology of Bone Resorption, Faculty of Medicine, University of Nantes, Nantes, France
| | - Narcisse Zwetyenga
- Department of Maxillofacial Surgery, Plastic - Reconstructive and Aesthetic Surgery, Hand Surgery, University Hospital of Dijon, Dijon, France
| | - Florelle Gindraux
- Nanomedicine Lab, Imagery and Therapeutics (EA 4662), SFR FED 4234, University of Franche-Comté, Besançon, France. .,Orthopaedic, Traumatology and Plastic Surgery Service, University Hospital of Besancon, Besançon, France.
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16
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Wise JK, Alford AI, Goldstein SA, Stegemann JP. Synergistic enhancement of ectopic bone formation by supplementation of freshly isolated marrow cells with purified MSC in collagen-chitosan hydrogel microbeads. Connect Tissue Res 2016; 57:516-525. [PMID: 26337827 PMCID: PMC4864208 DOI: 10.3109/03008207.2015.1072519] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE Bone marrow-derived mesenchymal stem cells (MSC) can differentiate osteogenic lineages, but their tissue regeneration ability is inconsistent. The bone marrow mononuclear cell (BMMC) fraction of adult bone marrow contains a variety of progenitor cells that may potentiate tissue regeneration. This study examined the utility of BMMC, both alone and in combination with purified MSC, as a cell source for bone regeneration. METHODS Fresh BMMC, culture-expanded MSC, and a combination of BMMC and MSC were encapsulated in collagen-chitosan hydrogel microbeads for pre-culture and minimally invasive delivery. Microbeads were cultured in growth medium for 3 days, and then in either growth or osteogenic medium for 17 days prior to subcutaneous injection in the rat dorsum. RESULTS MSC remained viable in microbeads over 17 days in pre-culture, while some of the BMMC fraction were nonviable. After 5 weeks of implantation, microCT and histology showed that supplementation of BMMC with MSC produced a strong synergistic effect on the volume of ectopic bone formation, compared to either cell source alone. Microbeads containing only fresh BMMC or only cultured MSC maintained in osteogenic medium resulted in more bone formation than their counterparts cultured in growth medium. Histological staining showed evidence of residual microbead matrix in undifferentiated samples and indications of more advanced tissue remodeling in differentiated samples. CONCLUSIONS These data suggest that components of the BMMC fraction can act synergistically with predifferentiated MSC to potentiate ectopic bone formation. The microbead system may have utility in delivering desired cell populations in bone regeneration applications.
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Affiliation(s)
- Joel K. Wise
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Andrea I. Alford
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Steven A. Goldstein
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA,Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Jan P. Stegemann
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
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17
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Zhang J, Liu W, Gauthier O, Sourice S, Pilet P, Rethore G, Khairoun K, Bouler JM, Tancret F, Weiss P. A simple and effective approach to prepare injectable macroporous calcium phosphate cement for bone repair: Syringe-foaming using a viscous hydrophilic polymeric solution. Acta Biomater 2016; 31:326-338. [PMID: 26631875 DOI: 10.1016/j.actbio.2015.11.055] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/28/2015] [Accepted: 11/25/2015] [Indexed: 11/18/2022]
Abstract
In this study, we propose a simple and effective strategy to prepare injectable macroporous calcium phosphate cements (CPCs) by syringe-foaming via hydrophilic viscous polymeric solution, such as using silanized-hydroxypropyl methylcellulose (Si-HPMC) as a foaming agent. The Si-HPMC foamed CPCs demonstrate excellent handling properties such as injectability and cohesion. After hardening the foamed CPCs possess hierarchical macropores and their mechanical properties (Young's modulus and compressive strength) are comparable to those of cancellous bone. Moreover, a preliminary in vivo study in the distal femoral sites of rabbits was conducted to evaluate the biofunctionality of this injectable macroporous CPC. The evidence of newly formed bone in the central zone of implantation site indicates the feasibility and effectiveness of this foaming strategy that will have to be optimized by further extensive animal experiments. STATEMENT OF SIGNIFICANCE A major challenge in the design of biomaterial-based injectable bone substitutes is the development of cohesive, macroporous and self-setting calcium phosphate cement (CPC) that enables rapid cell invasion with adequate initial mechanical properties without the use of complex processing and additives. Thus, we propose a simple and effective strategy to prepare injectable macroporous CPCs through syringe-foaming using a hydrophilic viscous polymeric solution (silanized-hydroxypropyl methylcellulose, Si-HPMC) as a foaming agent, that simultaneously meets all the aforementioned aims. Evidence from our in vivo studies shows the existence of newly formed bone within the implantation site, indicating the feasibility and effectiveness of this foaming strategy, which could be used in various CPC systems using other hydrophilic viscous polymeric solutions.
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Affiliation(s)
- Jingtao Zhang
- Université de Nantes, INSERM UMRS 791, Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire, 1 place Alexis Ricordeau, BP 84215, 44042 Nantes Cedex 1, France; Université de Nantes, Polytech Nantes, Institut des Matériaux Jean Rouxel, CNRS UMR 6502, Rue Christian Pauc, BP 50609, 44306 Nantes Cedex 3, France
| | - Weizhen Liu
- Université de Nantes, INSERM UMRS 791, Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire, 1 place Alexis Ricordeau, BP 84215, 44042 Nantes Cedex 1, France; Université de Nantes, Polytech Nantes, Institut des Matériaux Jean Rouxel, CNRS UMR 6502, Rue Christian Pauc, BP 50609, 44306 Nantes Cedex 3, France
| | - Olivier Gauthier
- ONIRIS - Ecole Nationale Veterinaire de Nantes, Atlanpole-La Chantrerie, BP 40706, 44307 Nantes cedex 3, France
| | - Sophie Sourice
- Université de Nantes, INSERM UMRS 791, Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire, 1 place Alexis Ricordeau, BP 84215, 44042 Nantes Cedex 1, France
| | - Paul Pilet
- Université de Nantes, INSERM UMRS 791, Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire, 1 place Alexis Ricordeau, BP 84215, 44042 Nantes Cedex 1, France; CHU de Nantes, Nantes University Hospital, PHU 4 OTONN, 1 Pl A. Ricordeau Nantes, France
| | - Gildas Rethore
- Université de Nantes, INSERM UMRS 791, Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire, 1 place Alexis Ricordeau, BP 84215, 44042 Nantes Cedex 1, France; CHU de Nantes, Nantes University Hospital, PHU 4 OTONN, 1 Pl A. Ricordeau Nantes, France
| | - Khalid Khairoun
- Université de Nantes, INSERM UMRS 791, Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire, 1 place Alexis Ricordeau, BP 84215, 44042 Nantes Cedex 1, France
| | - Jean-Michel Bouler
- Université de Nantes, CEISAM, CNRS UMR 6230, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Franck Tancret
- Université de Nantes, Polytech Nantes, Institut des Matériaux Jean Rouxel, CNRS UMR 6502, Rue Christian Pauc, BP 50609, 44306 Nantes Cedex 3, France
| | - Pierre Weiss
- Université de Nantes, INSERM UMRS 791, Laboratoire d'Ingénierie Ostéo-Articulaire et Dentaire, 1 place Alexis Ricordeau, BP 84215, 44042 Nantes Cedex 1, France; CHU de Nantes, Nantes University Hospital, PHU 4 OTONN, 1 Pl A. Ricordeau Nantes, France.
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18
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Hassan MN, Mahmoud MM, El-Fattah AA, Kandil S. Microwave-assisted preparation of Nano-hydroxyapatite for bone substitutes. CERAMICS INTERNATIONAL 2016; 42:3725-3744. [DOI: 10.1016/j.ceramint.2015.11.044] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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19
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Guillory X, Tessier A, Gratien GO, Weiss P, Colliec-Jouault S, Dubreuil D, Lebreton J, Le Bideau J. Glycidyl alkoxysilane reactivities towards simple nucleophiles in organic media for improved molecular structure definition in hybrid materials. RSC Adv 2016. [DOI: 10.1039/c6ra01658h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
We report the first comprehensive study of the reactivity in organic media of (3-glycidyloxypropyl)trialkoxysilanes towards common nucleophiles. Their reactivity have to be emphasized in order to design and to improve new sol–gel hybrid synthesis.
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Affiliation(s)
- X. Guillory
- Institut des Matériaux Jean Rouxel (IMN)
- UMR 6502
- 44322 Nantes
- France
- IFREMER
| | - A. Tessier
- CEISAM
- UMR 6230, équipe Symbiose
- 44322 Nantes
- France
| | - G.-O. Gratien
- Institut des Matériaux Jean Rouxel (IMN)
- UMR 6502
- 44322 Nantes
- France
- CEISAM
| | - P. Weiss
- LIOAD
- INSERM U791
- 44042 Nantes
- France
| | | | - D. Dubreuil
- CEISAM
- UMR 6230, équipe Symbiose
- 44322 Nantes
- France
| | - J. Lebreton
- CEISAM
- UMR 6230, équipe Symbiose
- 44322 Nantes
- France
| | - J. Le Bideau
- Institut des Matériaux Jean Rouxel (IMN)
- UMR 6502
- 44322 Nantes
- France
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Dorozhkin SV. Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications. J Funct Biomater 2015; 6:708-832. [PMID: 26262645 PMCID: PMC4598679 DOI: 10.3390/jfb6030708] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 12/30/2022] Open
Abstract
The state-of-the-art on calcium orthophosphate (CaPO4)-containing biocomposites and hybrid biomaterials suitable for biomedical applications is presented. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through the successful combinations of the desired properties of matrix materials with those of fillers (in such systems, CaPO4 might play either role), innovative bone graft biomaterials can be designed. Various types of CaPO4-based biocomposites and hybrid biomaterials those are either already in use or being investigated for biomedical applications are extensively discussed. Many different formulations in terms of the material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics have been already proposed. Among the others, the nano-structurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin, as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using CaPO4-based biocomposites and hybrid biomaterials in the selected applications are highlighted. As the way from a laboratory to a hospital is a long one and the prospective biomedical candidates have to meet many different necessities, the critical issues and scientific challenges that require further research and development are also examined.
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21
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Al Kayal T, Panetta D, Canciani B, Losi P, Tripodi M, Burchielli S, Ottoni P, Salvadori PA, Soldani G. Evaluation of the effect of a gamma irradiated DBM-pluronic F127 composite on bone regeneration in Wistar rat. PLoS One 2015; 10:e0125110. [PMID: 25897753 PMCID: PMC4405568 DOI: 10.1371/journal.pone.0125110] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 03/20/2015] [Indexed: 11/25/2022] Open
Abstract
Demineralized bone matrix (DBM) is widely used for bone regeneration. Since DBM is prepared in powder form its handling properties are not optimal and limit the clinical use of this material. Various synthetic and biological carriers have been used to enhance the DBM handling. In this study we evaluated the effect of gamma irradiation on the physical-chemical properties of Pluronic and on bone morphogenetic proteins (BMPs) amount in DBM samples. In vivo studies were carried out to investigate the effect on bone regeneration of a gamma irradiated DBM-Pluronic F127 (DBM-PF127) composite implanted in the femur of rats. Gamma irradiation effects (25 kGy) on physical-chemical properties of Pluronic F127 were investigated by rheological and infrared analysis. The BMP-2/BMP-7 amount after DBM irradiation was evaluated by ELISA. Bone regeneration capacity of DBM-PF127 containing 40% (w/w) of DBM was investigated in transcortical holes created in the femoral diaphysis of Wistar rat. Bone porosity, repaired bone volume and tissue organization were evaluated at 15, 30 and 90 days by Micro-CT and histological analysis. The results showed that gamma irradiation did not induce significant modification on physical-chemical properties of Pluronic, while a decrease in BMP-2/BMP-7 amount was evidenced in sterilized DBM. Micro-CT and histological evaluation at day 15 post-implantation revealed an interconnected trabeculae network in medullar cavity and cellular infiltration and vascularization of DBM-PF127 residue. In contrast a large rate of not connected trabeculae was observed in Pluronic filled and unfilled defects. At 30 and 90 days the DBM-PF127 samples shown comparable results in term of density and thickness of the new formed tissue respect to unfilled defect. In conclusion a gamma irradiated DBM-PF127 composite, although it may have undergone a significant decrease in the concentration of BMPs, was able to maintains bone regeneration capability.
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Affiliation(s)
- Tamer Al Kayal
- Institute of Clinical Physiology- CNR, Pisa, Italy
- * E-mail:
| | | | - Barbara Canciani
- University & IRCCS AOU San Martino—IST, National Institute for Cancer Research, DIMES, Genova, Italy
| | - Paola Losi
- Institute of Clinical Physiology- CNR, Pisa, Italy
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22
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3D Printing and Biofabrication for Load Bearing Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 881:3-14. [DOI: 10.1007/978-3-319-22345-2_1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Liu W, Zhang J, Rethore G, Khairoun K, Pilet P, Tancret F, Bouler JM, Weiss P. A novel injectable, cohesive and toughened Si-HPMC (silanized-hydroxypropyl methylcellulose) composite calcium phosphate cement for bone substitution. Acta Biomater 2014; 10:3335-45. [PMID: 24657196 DOI: 10.1016/j.actbio.2014.03.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/11/2014] [Accepted: 03/11/2014] [Indexed: 10/25/2022]
Abstract
This study reports on the incorporation of the self-setting polysaccharide derivative hydrogel (silanized-hydroxypropyl methylcellulose, Si-HPMC) into the formulation of calcium phosphate cements (CPCs) to develop a novel injectable material for bone substitution. The effects of Si-HPMC on the handling properties (injectability, cohesion and setting time) and mechanical properties (Young's modulus, fracture toughness, flexural and compressive strength) of CPCs were systematically studied. It was found that Si-HPMC could endow composite CPC pastes with an appealing rheological behavior at the early stage of setting, promoting its application in open bone cavities. Moreover, Si-HPMC gave the composite CPC good injectability and cohesion, and reduced the setting time. Si-HPMC increased the porosity of CPCs after hardening, especially the macroporosity as a result of entrapped air bubbles; however, it improved, rather than compromised, the mechanical properties of composite CPCs, which demonstrates a strong toughening and strengthening effect. In view of the above, the Si-HPMC composite CPC may be particularly promising as bone substitute material for clinic application.
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24
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Liao S, Nguyen LTH, Ngiam M, Wang C, Cheng Z, Chan CK, Ramakrishna S. Biomimetic nanocomposites to control osteogenic differentiation of human mesenchymal stem cells. Adv Healthc Mater 2014; 3:737-51. [PMID: 24574245 DOI: 10.1002/adhm.201300207] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 08/05/2013] [Indexed: 12/31/2022]
Abstract
The design of biomimetic nanomaterials that can directly influence the behavior of cells and facilitate the regeneration of tissues and organs has become an active area of research. Here, the production of materials based on nano-hydroxyapatite composites in scaffolds with nanofibrous and nanoporous topographies, designed to mimic the native bone matrix for applications in bone tissue engineering, is reported. Human mesenchymal stem cells grown on these nanocomposites are stimulated to rapidly produce bone minerals in situ, even in the absence of osteogenic supplements in the cell-culture medium. Nanocomposites comprising type I collagen and nano-hydroxyapatite are found to be especially efficient at inducing mineralization. When subcutaneously implanted into nude mice, this biomimetic nanocomposite is able to form a new bone matrix within only two weeks. Furthermore, when the nanocomposite is enriched with human mesenchymal stem cells before implantation, development of the bone matrix is accelerated to within one week. To the best of the authors' knowledge, this study provides the first clear in vitro and in vivo demonstration of osteoinduction controlled by the material characteristics of a biomimetic nanocomposite. This approach can potentially facilitate the translation of de novo bone-formation technologies to the clinic.
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Affiliation(s)
- Susan Liao
- School of Materials Science and Engineering Nanyang Technological University Singapore 639798
| | - Luong T. H. Nguyen
- Department of Mechanical Engineering National University of Singapore Singapore 117575
| | - Michelle Ngiam
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore Singapore 117456
| | - Charlene Wang
- Nanoscience and Nanotechnology Institute National University of Singapore Singapore 117581
| | - Ziyuan Cheng
- Department of Biomedical Engineering National University of Singapore Singapore 117576
| | - Casey K. Chan
- Department of Orthopaedic Surgery National University Healthcare System Singapore 119288
| | - Seeram Ramakrishna
- Department of Mechanical Engineering National University of Singapore Singapore 117575
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25
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Ma J, Yang F, Both SK, Prins HJ, Helder MN, Pan J, Cui FZ, Jansen JA, van den Beucken JJ. Bone forming capacity of cell- and growth factor-based constructs at different ectopic implantation sites. J Biomed Mater Res A 2014; 103:439-50. [DOI: 10.1002/jbm.a.35192] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 03/14/2014] [Accepted: 04/04/2014] [Indexed: 12/29/2022]
Affiliation(s)
- Jinling Ma
- Department of Biomaterials; Radboud University Medical Centre; Nijmegen the Netherlands
- Department of VIP service; Beijing Stomatological Hospital, Capital Medical University; Beijing 100050 China
| | - Fang Yang
- Department of Biomaterials; Radboud University Medical Centre; Nijmegen the Netherlands
| | - Sanne K. Both
- Department of Biomaterials; Radboud University Medical Centre; Nijmegen the Netherlands
| | - Henk-Jan Prins
- Department of Oral Cell Biology; Academic Centre for Dentistry Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam the Netherlands
- Department of Oral and Maxillofacial Surgery; VU University Medical Centre/ACTA; Amsterdam the Netherlands
| | - Marco N. Helder
- Department of Orthopedic Surgery; VU University Medical Centre; Amsterdam the Netherlands
| | - Juli Pan
- Department of VIP service; Beijing Stomatological Hospital, Capital Medical University; Beijing 100050 China
- Department of Oral and Maxillofacial Surgery; Beijing Stomatological Hospital, Capital Medical University; Beijing 100050 China
| | - Fu-Zhai Cui
- Department of Materials Science and Engineering; State Key Laboratory of New Ceramics and Fine Processing; Tsinghua University; Beijing 100084 China
| | - John A. Jansen
- Department of Biomaterials; Radboud University Medical Centre; Nijmegen the Netherlands
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Prieto EM, Page JM, Harmata AJ, Guelcher SA. Injectable foams for regenerative medicine. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 6:136-54. [PMID: 24127230 PMCID: PMC3945605 DOI: 10.1002/wnan.1248] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 08/13/2013] [Accepted: 09/17/2013] [Indexed: 12/21/2022]
Abstract
The design of injectable biomaterials has attracted considerable attention in recent years. Many injectable biomaterials, such as hydrogels and calcium phosphate cements (CPCs), have nanoscale pores that limit the rate of cellular migration and proliferation. While introduction of macroporosity has been suggested to increase cellular infiltration and tissue healing, many conventional methods for generating macropores often require harsh processing conditions that preclude their use in injectable foams. In recent years, processes such as porogen leaching, gas foaming, and emulsion-templating have been adapted to generate macroporosity in injectable CPCs, hydrogels, and hydrophobic polymers. While some of the more mature injectable foam technologies have been evaluated in clinical trials, there are challenges remaining to be addressed, such as the biocompatibility and ultimate fate of the sacrificial phase used to generate pores within the foam after it sets in situ. Furthermore, while implantable scaffolds can be washed extensively to remove undesirable impurities, all of the components required to synthesize injectable foams must be injected into the defect. Thus, every compound in the foam must be biocompatible and noncytotoxic at the concentrations utilized. As future research addresses these critical challenges, injectable macroporous foams are anticipated to have an increasingly significant impact on improving patient outcomes for a number of clinical procedures.
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Affiliation(s)
- Edna M Prieto
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, USA
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27
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Pereira J, Portron S, Dizier B, Vinatier C, Masson M, Sourice S, Galy-Fauroux I, Corre P, Weiss P, Fischer AM, Guicheux J, Helley D. The in vitro and in vivo effects of a low-molecular-weight fucoidan on the osteogenic capacity of human adipose-derived stromal cells. Tissue Eng Part A 2013; 20:275-84. [PMID: 24059447 DOI: 10.1089/ten.tea.2013.0028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Human adipose-derived stromal cells (hASCs) may hold potential for bone tissue engineering. Osteogenic differentiation of these cells is crucial to bone formation. Low-molecular-weight fucoidan (LMWF) is a sulfated polysaccharide that potentiates several growth factors, including pro-angiogenic growth factors. To investigate whether hASC preconditioning with LMWF promoted bone repair, we compared the effects of LMWF and low-molecular-weight heparin on hASC phenotype and osteogenic differentiation. LMWF did not modify the stem-cell phenotype of hASCs but enhanced their osteogenic differentiation (formation of calcium deposits, increased activity and expression of alkaline phosphatase, and increased expression of osteopontin and runt-related transcription factor 2). However, when hASCs were exposed to LMWF before their adhesion to biphasic calcium phosphate particles and implantation in a bone-growth mouse model, no bone formation was apparent after 5 or 8 weeks, probably due to cell death. In conclusion, LMWF may hold promise for enhancing the osteogenic differentiation of hASCs before their implantation. However, concomitant vascularization would be required to enhance bone formation.
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Affiliation(s)
- Jessica Pereira
- 1 Université Paris Descartes , Sorbonne Paris Cité, Paris, France
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28
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Incorporation of biphasic calcium phosphate microparticles in injectable thermoresponsive hydrogel modulates bone cell proliferation and differentiation. Colloids Surf B Biointerfaces 2013; 110:120-9. [DOI: 10.1016/j.colsurfb.2013.04.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 04/04/2013] [Accepted: 04/23/2013] [Indexed: 11/20/2022]
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29
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Kampmann A, Lindhorst D, Schumann P, Zimmerer R, Kokemüller H, Rücker M, Gellrich NC, Tavassol F. Additive effect of mesenchymal stem cells and VEGF to vascularization of PLGA scaffolds. Microvasc Res 2013; 90:71-9. [PMID: 23899416 DOI: 10.1016/j.mvr.2013.07.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 07/05/2013] [Accepted: 07/17/2013] [Indexed: 11/20/2022]
Abstract
Bone marrow derived mesenchymal stem cells (bmMSCs) are widely used for the generation of tissue engineering constructs, since they can differentiate into different cell types occurring in bone tissues. Until now their use for the generation of tissue engineering constructs is limited. All cells inside a tissue engineering construct die within a short period of time after implantation of the construct because vascularization and establishment of connections to the recipient circulatory system is a time consuming process. We therefore compared the influences of bmMSC, VEGF and a combination of both on the early processes of vascularization, utilizing the mice skinfold chamber model and intravital fluorescence microscopy. Tissue engineering constructs based on collagen coated Poly d,l-lactide-co-glycolide (PLGA) scaffolds, were either functionalized by coating with vascular endothelial growth factor (VEGF) or vitalized with bmMSC. PLGA without cells and growth factor was used as the control group. Functionalized and vitalized tissue engineering constructs showed an accelerated growth of microvessels compared to controls. Only marginal differences in vascular growth were detected between VEGF containing and bmMSC containing constructs. Constructs containing VEGF and bmMSC showed a further enhanced microvascular growth at day 14. We conclude that bmMSCs are well suited for bone tissue engineering applications, since they are a valuable source of angiogenic growth factors and are able to differentiate into the tissue specific cell types of interest. The dynamic process of vascularization triggered by growth factor producing cells can be amplified and stabilized with the addition of accessory growth factors, leading to a persisting angiogenesis, but strategies are needed that enhance the resistance of bmMSC to hypoxia and increase survival of these cells until the tissue engineering construct has build up a functional vascular system.
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Affiliation(s)
- Andreas Kampmann
- Department of Oral and Maxillofacial Surgery, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany.
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30
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Pedersen TO, Blois AL, Xing Z, Xue Y, Sun Y, Finne-Wistrand A, Akslen LA, Lorens JB, Leknes KN, Fristad I, Mustafa K. Endothelial microvascular networks affect gene-expression profiles and osteogenic potential of tissue-engineered constructs. Stem Cell Res Ther 2013; 4:52. [PMID: 23683577 PMCID: PMC3706836 DOI: 10.1186/scrt202] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 05/14/2013] [Indexed: 01/07/2023] Open
Abstract
Introduction A major determinant of the potential size of cell/scaffold constructs in tissue engineering is vascularization. The aims of this study were twofold: first to determine the in vitro angiogenic and osteogenic gene-expression profiles of endothelial cells (ECs) and mesenchymal stem cells (MSCs) cocultured in a dynamic 3D environment; and second, to assess differentiation and the potential for osteogenesis after in vivo implantation. Methods MSCs and ECs were grown in dynamic culture in poly(L-lactide-co-1,5-dioxepan-2-one) (poly(LLA-co-DXO)) copolymer scaffolds for 1 week, to generate three-dimensional endothelial microvascular networks. The constructs were then implanted in vivo, in a murine model for ectopic bone formation. Expression of selected genes for angiogenesis and osteogenesis was studied after a 1-week culture in vitro. Human cell proliferation was assessed as expression of ki67, whereas α-smooth muscle actin was used to determine the perivascular differentiation of MSCs. Osteogenesis was evaluated in vivo through detection of selected markers, by using real-time RT-PCR, alkaline phosphatase (ALP), Alizarin Red, hematoxylin/eosin (HE), and Masson trichrome staining. Results The results show that endothelial microvascular networks could be generated in a poly(LLA-co-DXO) scaffold in vitro and sustained after in vivo implantation. The addition of ECs to MSCs influenced both angiogenic and osteogenic gene-expression profiles. Furthermore, human ki67 was upregulated before and after implantation. MSCs could support functional blood vessels as perivascular cells independent of implanted ECs. In addition, the expression of ALP was upregulated in the presence of endothelial microvascular networks. Conclusions This study demonstrates that copolymer poly(LLA-co-DXO) scaffolds can be prevascularized with ECs and MSCs. Although a local osteoinductive environment is required to achieve ectopic bone formation, seeding of MSCs with or without ECs increases the osteogenic potential of tissue-engineered constructs.
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31
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D'Este M, Eglin D. Hydrogels in calcium phosphate moldable and injectable bone substitutes: Sticky excipients or advanced 3-D carriers? Acta Biomater 2013. [PMID: 23201020 DOI: 10.1016/j.actbio.2012.11.022] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The combination of hydrogels and calcium phosphate particles is emerging as a well-established trend for bone substitutes. Besides acting as binders for the inorganic phase, hydrogels within these hybrid materials can modulate cell colonization physically and biologically. The influence of hydrogels on the healing process can also be exploited through their capability to deliver drugs and cells for tissue engineering approaches. The aim of this review is to collect some recent progress in this field, with an emphasis on design aspects and possible future directions.
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Affiliation(s)
- M D'Este
- AO Research Institute Davos, Clavadelerstrasse 8, Davos, Switzerland.
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32
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Song G, Habibovic P, Bao C, Hu J, van Blitterswijk CA, Yuan H, Chen W, Xu HHK. The homing of bone marrow MSCs to non-osseous sites for ectopic bone formation induced by osteoinductive calcium phosphate. Biomaterials 2013; 34:2167-76. [PMID: 23298780 DOI: 10.1016/j.biomaterials.2012.12.010] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 12/14/2012] [Indexed: 11/18/2022]
Abstract
Osteoinductive biomaterials are promising for bone repair. There is no direct proof that bone marrow mesenchymal stem cells (BMSCs) home to non-osseous sites and participate in ectopic bone formation induced by osteoinductive bioceramics. The objective of this study was to use a sex-mismatched beagle dog model to investigate BMSC homing via blood circulation to participate in ectopic bone formation via osteoinductive biomaterial. BMSCs of male dogs were injected into female femoral marrow cavity. The survival and stable chimerism of donor BMSCs in recipients were confirmed with polymerase chain reaction (PCR) and fluorescence in situ hybridization (FISH). Biphasic calcium phosphate (BCP) granules were implanted in dorsal muscles of female dogs. Y chromosomes were detected in samples harvested from female dogs which had received male BMSCs. At 4 weeks, cells with Y-chromosomes were distributed in the new bone matrix throughout the BCP granule implant. At 6 weeks, cells with Y chromosomes were present in newly mineralized woven bone. TRAP positive osteoclast-like cells were observed in 4-week implants, and the number of such cells decreased from 4 to 6 weeks. These results show that osteoprogenitors were recruited from bone marrow and homed to ectopic site to serve as a cell source for calcium phosphate-induced bone formation. In conclusion, BMSCs were demonstrated to migrate from bone marrow through blood circulation to non-osseous bioceramic implant site to contribute to ectopic bone formation in a canine model. BCP induced new bone in muscles without growth factor delivery, showing excellent osteoinductivity that could be useful for bone tissue engineering.
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Affiliation(s)
- Guodong Song
- State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China
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33
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Krauss Juillerat F, Borcard F, Staedler D, Scaletta C, Applegate LA, Comas H, Gauckler LJ, Gerber-Lemaire S, Juillerat-Jeanneret L, Gonzenbach UT. Functionalization of microstructured open-porous bioceramic scaffolds with human fetal bone cells. Bioconjug Chem 2012; 23:2278-90. [PMID: 23116053 DOI: 10.1021/bc300407x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bone substitute materials allowing trans-scaffold migration and in-scaffold survival of human bone-derived cells are mandatory for development of cell-engineered permanent implants to repair bone defects. In this study, we evaluated the influence on human bone-derived cells of the material composition and microstructure of foam scaffolds of calcium aluminate. The scaffolds were prepared using a direct foaming method allowing wide-range tailoring of the microstructure for pore size and pore openings. Human fetal osteoblasts (osteo-progenitors) attached to the scaffolds, migrated across the entire bioceramic depending on the scaffold pore size, colonized, and survived in the porous material for at least 6 weeks. The long-term biocompatibility of the scaffold material for human bone-derived cells was evidenced by in-scaffold determination of cell metabolic activity using a modified MTT assay, a repeated WST-1 assay, and scanning electron microscopy. Finally, we demonstrated that the osteo-progenitors can be covalently bound to the scaffolds using biocompatible click chemistry, thus enhancing the rapid adhesion of the cells to the scaffolds. Therefore, the different microstructures of the foams influenced the migratory potential of the cells, but not cell viability. Scaffolds allow covalent biocompatible chemical binding of the cells to the materials, either localized or widespread integration of the scaffolds for cell-engineered implants.
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34
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Maté‐Sánchez de Val JE, Calvo‐Guirado JL, Delgado‐Ruiz RA, Ramírez‐Fernández MP, Negri B, Abboud M, Martínez IM, de Aza PN. Retracted
: Physical properties, mechanical behavior, and electron microscopy study of a new α‐TCP block graft with silicon in an animal model. J Biomed Mater Res A 2012; 100:3446-54. [DOI: 10.1002/jbm.a.34259] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2012] [Revised: 05/07/2012] [Accepted: 05/09/2012] [Indexed: 11/08/2022]
Affiliation(s)
| | - Jose L. Calvo‐Guirado
- Department of Implant Dentistry, Faculty of Medicine and Dentistry, University of Murcia, Spain
| | - Rafael A. Delgado‐Ruiz
- Department of Restorative Dentistry, Faculty of Medicine and Dentistry, University of Murcia, Spain
| | - Mª P. Ramírez‐Fernández
- Department of Implant Dentistry, Faculty of Medicine and Dentistry, University of Murcia, Spain
| | - Bruno Negri
- Department of Implant Dentistry, Faculty of Medicine and Dentistry, University of Murcia, Spain
| | - Marcus Abboud
- Department of Prosthodontics and Digital Technologies, Stony Brook University, New York
| | | | - Piedad N. de Aza
- Bioengineering Institute, Miguel Hernández University, Elche, Spain
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35
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Fedorovich NE, Leeuwenburgh SC, van der Helm YJM, Alblas J, Dhert WJA. The osteoinductive potential of printable, cell-laden hydrogel-ceramic composites. J Biomed Mater Res A 2012; 100:2412-20. [PMID: 22539500 DOI: 10.1002/jbm.a.34171] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 01/22/2012] [Accepted: 02/29/2012] [Indexed: 11/05/2022]
Abstract
Hydrogels used as injectables or in organ printing often lack the appropriate stimuli to direct osteogenic differentiation of embedded multipotent stromal cells (MSCs), resulting in limited bone formation in these matrices. Addition of calcium phosphate (CaP) particles to the printing mixture is hypothesized to overcome this drawback. In this study we have investigated the effect of CaP particles on the osteoinductive potential of cell-laden hydrogel-CaP composite matrices. To this end, apatitic nanoparticles have been included in Matrigel constructs where after the viability of embedded progenitor cells was assessed in vitro. In addition, the osteoinductive potential of cell-laden Matrigel containing apatitic nanoparticles was investigated in vivo and compared with composites containing osteoinductive biphasic calcium phosphate (BCP) microparticles after subcutaneous implantation in immunodeficient mice. Histological and immunohistochemical analysis of the tissue response as well as in vivo bone formation revealed that apatitic nanoparticles were osteoinductive and induced osteoclast activation, but without bone formation. The BCP particles were more effective in inducing elaborate bone formation at the ectopic location.
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Affiliation(s)
- Natalja E Fedorovich
- Department of Orthopaedics, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands
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Qi Y, Wang Y, Yan W, Li H, Shi Z, Pan Z. Combined Mesenchymal Stem Cell Sheets and rhBMP-2-Releasing Calcium Sulfate–rhBMP-2 Scaffolds for Segmental Bone Tissue Engineering. Cell Transplant 2012; 21:693-705. [PMID: 22236577 DOI: 10.3727/096368911x623844] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Repair of segmental bone defects remains a major challenge for orthopedic surgeons. This study aimed to investigate whether recombinant human bone morphogenetic protein-2 (rhBMP-2)-loaded calcium sulfate (CS) combined with mesenchymal stem cell (MSC) sheets could accelerate bone regeneration in ulnar segmental defects of rabbits. In vitro, the osteogenic differentiation of MSCs cultured on rhBMP-2-loaded CS was investigated. Forty complete 1.2-cm bone defects were treated with CS (group A), rhBMP-2-loaded CS (group B), MSC sheet-wrapped CS (group C), and MSC sheet-wrapped rhBMP-2-loaded CS (group D). At 4 and 8 weeks after implantation, the samples were treated by X-ray, microcomputed tomography, and histological observation. The rhBMP-2 could be released from the rhBMP-2-loaded CS scaffolds and maintain its bioactivity. The alkaline phosphatase (ALP) of MSCs cultured on rhBMP-2-loaded CS was significantly higher than that of CS at both 7 and 14 days ( p < 0.05). The defects treated with MSC sheet-wrapped rhBMP-2-loaded CS showed significantly higher scores by X-ray analysis and more bone formation determined by both histology and microcomputed tomography than the other three groups at both 4 and 8 weeks after implantation ( p < 0.05). No significant difference in X-ray score and bone formation was found between groups B and C, both significantly higher than group A ( p < 0.05). The results suggested that MSC sheet-wrapped rhBMP-2-loaded CS may be an effective approach to promote the repair of segmental bone defects and has great potential for repairing large segmental bone defects in clinic.
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Affiliation(s)
- Yiying Qi
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yulu Wang
- Department of Orthopedic Surgery, the First Affiliated Hospital, Baotou Medical School, Baotou, China
| | - Weiqi Yan
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Hang Li
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhongli Shi
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhijun Pan
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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37
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Dorozhkin SV. Biphasic, triphasic and multiphasic calcium orthophosphates. Acta Biomater 2012; 8:963-77. [PMID: 21945826 DOI: 10.1016/j.actbio.2011.09.003] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2011] [Revised: 08/26/2011] [Accepted: 09/01/2011] [Indexed: 01/01/2023]
Abstract
Biphasic, triphasic and multiphasic (polyphasic) calcium orthophosphates have been sought as biomaterials for reconstruction of bone defects in maxillofacial, dental and orthopedic applications. In general, this concept is determined by advantageous balances of more stable (frequently hydroxyapatite) and more resorbable (typically tricalcium orthophosphates) phases of calcium orthophosphates, while the optimum ratios depend on the particular applications. Therefore, all currently known biphasic, triphasic and multiphasic formulations of calcium orthophosphate bioceramics are sparingly soluble in water and, thus, after being implanted they are gradually resorbed inside the body, releasing calcium and orthophosphate ions into the biological medium and, hence, seeding new bone formation. The available formulations have already demonstrated proven biocompatibility, osteoconductivity, safety and predictability in vitro, in vivo, as well as in clinical models. More recently, in vitro and in vivo studies have shown that some of them might possess osteoinductive properties. Hence, in the field of tissue engineering biphasic, triphasic and multiphasic calcium orthophosphates represent promising biomaterials to construct various scaffolds capable of carrying and/or modulating the behavior of cells. Furthermore, such scaffolds are also suitable for drug delivery applications. This review summarizes the available information on biphasic, triphasic and multiphasic calcium orthophosphates, including their biomedical applications. New formulations are also proposed.
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Ambrosch K, Manhardt M, Loth T, Bernhardt R, Schulz-Siegmund M, Hacker MC. Open porous microscaffolds for cellular and tissue engineering by lipid templating. Acta Biomater 2012; 8:1303-15. [PMID: 22155065 DOI: 10.1016/j.actbio.2011.11.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 10/03/2011] [Accepted: 11/14/2011] [Indexed: 10/15/2022]
Abstract
Porous microspheres fabricated from biodegradable polymers have great potential as microscaffolds in tissue engineering applications, especially for novel strategies such as microtissue fabrication in vitro and microtissue assembly in vivo. Fabrication techniques for microparticulate scaffolds with surface and bulk pore sizes relevant for effective cell intrusion, however, are scarce. This study presents two techniques for the fabrication of open porous microscaffolds from poly(lactide-co-glycolide) in which lipid templating is used for pore formation and combined with either dispersion spraying or a double emulsion technique to determine the size and shape of the particulate structures generated. Both techniques yield microscaffolds with an average size of between 500 and 800 μm, high bulk porosities and open surface pores larger than 50 μm in diameter. Microscaffold morphology was investigated microscopically, particle size distribution was determined and porosity was quantified by intrusion measurements. Particle size and morphology was controlled by the processing parameters and the content and type of lipid porogen. Efficient extraction of the lipid template was shown by thermal analysis. Microscaffold cytocompatibility and in vitro cell culture performance was evaluated with L929 fibroblasts and rat adipose-derived stromal cells (ADSC), respectively. Extracts of different formulations were cytocompatible. Rat ADSC proliferated on the microscaffolds and were differentiated along the adipogenic lineage.
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Scott MA, Levi B, Askarinam A, Nguyen A, Rackohn T, Ting K, Soo C, James AW. Brief review of models of ectopic bone formation. Stem Cells Dev 2012; 21:655-67. [PMID: 22085228 DOI: 10.1089/scd.2011.0517] [Citation(s) in RCA: 135] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Ectopic bone formation is a unique biologic entity--distinct from other areas of skeletal biology. Animal research models of ectopic bone formation most often employ rodent models and have unique advantages over orthotopic (bone) environments, including a relative lack of bone cytokine stimulation and cell-to-cell interaction with endogenous (host) bone-forming cells. This allows for relatively controlled in vivo experimental bone formation. A wide variety of ectopic locations have been used for experimentation, including subcutaneous, intramuscular, and kidney capsule transplantation. The method, benefits and detractions of each method are summarized in the following review. Briefly, subcutaneous implantation is the simplest method. However, the most pertinent concern is the relative paucity of bone formation in comparison to other models. Intramuscular implantation is also widely used and relatively simple, however intramuscular implants are exposed to skeletal muscle satellite progenitor cells. Thus, distinguishing host from donor osteogenesis becomes challenging without cell-tracking studies. The kidney capsule (perirenal or renal capsule) method is less widely used and more technically challenging. It allows for supraphysiologic blood and nutrient resource, promoting robust bone growth. In summary, ectopic bone models are extremely useful in the evaluation of bone-forming stem cells, new osteoinductive biomaterials, and growth factors; an appropriate choice of model, however, will greatly increase experimental success.
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Affiliation(s)
- Michelle A Scott
- Orthodontics and Dentofacial Orthopedics, Roseman University of Health Sciences, Henderson, Nevada, USA
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Das A, Botchwey E. Evaluation of angiogenesis and osteogenesis. TISSUE ENGINEERING PART B-REVIEWS 2011; 17:403-14. [PMID: 21902609 DOI: 10.1089/ten.teb.2011.0190] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bone regeneration has long been a major focus for tissue engineers and the importance of vascularization to the bone regeneration process has been well documented. Over the past decade, technological advances in the areas of stem cell biology, scaffold fabrication, and protein engineering have significantly enhanced our understanding of the interplay between vascularization and bone growth. This review, therefore, describes the commonly used models for investigating the complex interactions between osteoblastic cells and endothelial cells, evaluates the different tools utilized to investigate the relationship between vascularization and bone growth in vivo, and finally, summarizes possible areas of research related to therapeutic development.
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Affiliation(s)
- Anusuya Das
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22908, USA
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Zhao Z, Hao C, Zhao H, Liu J, Shao L. Injectable allogeneic bone mesenchymal stem cells: a potential minimally invasive therapy for atrophic nonunion. Med Hypotheses 2011; 77:912-3. [PMID: 21885204 DOI: 10.1016/j.mehy.2011.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 06/04/2011] [Accepted: 08/07/2011] [Indexed: 10/17/2022]
Abstract
How to enhance atrophic nonunion repairing is a common challenge encountered in orthopaedic surgeons. With the increasing popularity of minimally invasive techniques, one of the major thrusts in treatment approaches for atrophic nonunions is to develop injectable systems that can shorten the surgical operation time, reduce the morbidity and costs for patients. Bone mesenchymal stem cells (BMSCs) may provide new strategies to treat atrophic nonunion because of their prolonged self-renewal capacity and ability to differentiate into osteogenic lineage under the proper conditions. However, providing an autologous BMSCs in the clinical setting is often limited, because the patient's marrow is damaged or the cell yield from healthy marrow is reduced. Due to the limitation of autologous BMSCs in clinical application, we turn to consider allogeneic BMSCs as seeding cells in atrophic nonunion repair. Allogeneic BMSCs could are isolated from one or more donors would have the potential to be expanded and cryopreserved for future use. Previous studies have indicated that BMSCs possess immune-privileged properties, which avoid or actively suppress the immunological responses. Here we propose the hypothesis that the application of osteo-induced allogeneic BMSCs in fibrin gels for delivery of the cells by means of an injectable device would enhance repair of atrophic nonunion without the use of immunosuppressive therapy. Furthermore, fibrin gel could be useful as BMSCs carrier to deliver cells in vivo, there is no immunogenicity to be expected and BMSCs were able to spread and proliferate into the fibrin. Therefore, if the hypothesis is proved to be practical, it might represent a novel minimally invasive therapeutic approach and enhance atrophic nonunion repairing.
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Affiliation(s)
- Zhenyu Zhao
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, HLJ 150086, China
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Organ printing: the future of bone regeneration? Trends Biotechnol 2011; 29:601-6. [PMID: 21831463 DOI: 10.1016/j.tibtech.2011.07.001] [Citation(s) in RCA: 166] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 06/01/2011] [Accepted: 07/05/2011] [Indexed: 12/18/2022]
Abstract
In engineered bone grafts, the combined actions of bone-forming cells, matrix and bioactive stimuli determine the eventual performance of the implant. The current notion is that well-built 3D constructs include the biological elements that recapitulate native bone tissue structure to achieve bone formation once implanted. The relatively new technology of organ/tissue printing now enables the accurate 3D organization of the components that are important for bone formation and also addresses issues, such as graft porosity and vascularization. Bone printing is seen as a great promise, because it combines rapid prototyping technology to produce a scaffold of the desired shape and internal structure with incorporation of multiple living cell types that can form the bone tissue once implanted.
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Costa-Pinto AR, Reis RL, Neves NM. Scaffolds based bone tissue engineering: the role of chitosan. TISSUE ENGINEERING PART B-REVIEWS 2011; 17:331-47. [PMID: 21810029 DOI: 10.1089/ten.teb.2010.0704] [Citation(s) in RCA: 250] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
As life expectancy increases, malfunction or loss of tissue caused by injury or disease leads to reduced quality of life in many patients at significant socioeconomic cost. Even though major progress has been made in the field of bone tissue engineering, present therapies, such as bone grafts, still have limitations. Current research on biodegradable polymers is emerging, combining these structures with osteogenic cells, as an alternative to autologous bone grafts. Different types of biodegradable materials have been proposed for the preparation of three-dimensional porous scaffolds for bone tissue engineering. Among them, natural polymers are one of the most attractive options, mainly due to their similarities with extracellular matrix, chemical versatility, good biological performance, and inherent cellular interactions. In this review, special attention is given to chitosan as a biomaterial for bone tissue engineering applications. An extensive literature survey was performed on the preparation of chitosan scaffolds and their in vitro biological performance as well as their potential to facilitate in vivo bone regeneration. The present review also aims to offer the reader a general overview of all components needed to engineer new bone tissue. It gives a brief background on bone biology, followed by an explanation of all components in bone tissue engineering, as well as describing different tissue engineering strategies. Moreover, also discussed are the typical models used to evaluate in vitro functionality of a tissue-engineered construct and in vivo models to assess the potential to regenerate bone tissue are discussed.
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Affiliation(s)
- Ana Rita Costa-Pinto
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Guimarães, Portugal
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Fedorovich NE, Wijnberg HM, Dhert WJ, Alblas J. Distinct Tissue Formation by Heterogeneous Printing of Osteo- and Endothelial Progenitor Cells. Tissue Eng Part A 2011; 17:2113-21. [DOI: 10.1089/ten.tea.2011.0019] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Natalja E. Fedorovich
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Hans M. Wijnberg
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wouter J.A. Dhert
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
- Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Jacqueline Alblas
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
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Abstract
The state-of-the-art of biocomposites and hybrid biomaterials based on calcium orthophosphates that are suitable for biomedical applications is presented in this review. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through successful combinations of the desired properties of matrix materials with those of fillers (in such systems, calcium orthophosphates might play either role), innovative bone graft biomaterials can be designed. Various types of biocomposites and hybrid biomaterials based on calcium orthophosphates, either those already in use or being investigated for biomedical applications, are extensively discussed. Many different formulations, in terms of the material constituents, fabrication technologies, structural and bioactive properties as well as both in vitro and in vivo characteristics, have already been proposed. Among the others, the nanostructurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using biocomposites and hybrid biomaterials based on calcium orthophosphates in the selected applications are highlighted. As the way from the laboratory to the hospital is a long one, and the prospective biomedical candidates have to meet many different necessities, this review also examines the critical issues and scientific challenges that require further research and development.
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Boukhechba F, Balaguer T, Bouvet-Gerbettaz S, Michiels JF, Bouler JM, Carle GF, Scimeca JC, Rochet N. Fate of bone marrow stromal cells in a syngenic model of bone formation. Tissue Eng Part A 2011; 17:2267-78. [PMID: 21539494 DOI: 10.1089/ten.tea.2010.0461] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Bone marrow stromal cells (BMSCs) have been demonstrated to induce bone formation when associated to osteoconductive biomaterials and implanted in vivo. Nevertheless, their role in bone reconstruction is not fully understood and rare studies have been conducted to follow their destiny after implantation in syngenic models. The aim of the present work was to use sensitive and quantitative methods to track donor and recipient cells after implantation of BMSCs in a syngenic model of ectopic bone formation. Using polymerase chain reaction (PCR) amplification of the Sex determining Region Y (Sry) gene and in situ hybridization of the Y chromosome in parallel to histological analysis, we have quantified within the implants the survival of the donor cells and the colonization by the recipient cells. The putative migration of the BMSCs in peripheral organs was also analyzed. We show here that grafted cells do not survive more than 3 weeks after implantation and might migrate in peripheral lymphoid organs. These cells are responsible for the attraction of host cells within the implants, leading to the centripetal colonization of the biomaterial by new bone.
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Affiliation(s)
- Florian Boukhechba
- GEPITOS, Université Nice Sophia-Antipolis, CNRS, UFR de Médecine, Nice, France
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Pneumaticos SG, Triantafyllopoulos GK, Basdra EK, Papavassiliou AG. Segmental bone defects: from cellular and molecular pathways to the development of novel biological treatments. J Cell Mol Med 2011; 14:2561-9. [PMID: 20345845 PMCID: PMC4373476 DOI: 10.1111/j.1582-4934.2010.01062.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Several conditions in clinical orthopaedic practice can lead to the development of a diaphyseal segmental bone defect, which cannot heal without intervention. Segmental bone defects have been traditionally treated with bone grafting and/or distraction osteogenesis, methods that have many advantages, but also major drawbacks, such as limited availability, risk of disease transmission and prolonged treatment. In order to overcome such limitations, biological treatments have been developed based on specific pathways of bone physiology and healing. Bone tissue engineering is a dynamic field of research, combining osteogenic cells, osteoinductive factors, such as bone morphogenetic proteins, and scaffolds with osteoconductive and osteoinductive attributes, to produce constructs that could be used as bone graft substitutes for the treatment of segmental bone defects. Scaffolds are usually made of ceramic or polymeric biomaterials, or combinations of both in composite materials. The purpose of the present review is to discuss in detail the molecular and cellular basis for the development of bone tissue engineering constructs.
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Affiliation(s)
- Spyros G Pneumaticos
- Third Department of Orthopaedic Surgery, Medical School, University of Athens, 'KAT' Accident's Hospital, Athens, Greece
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Rederstorff E, Weiss P, Sourice S, Pilet P, Xie F, Sinquin C, Colliec-Jouault S, Guicheux J, Laïb S. An in vitro study of two GAG-like marine polysaccharides incorporated into injectable hydrogels for bone and cartilage tissue engineering. Acta Biomater 2011; 7:2119-30. [PMID: 21256989 DOI: 10.1016/j.actbio.2011.01.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 01/16/2011] [Accepted: 01/18/2011] [Indexed: 11/25/2022]
Abstract
Natural polysaccharides are attractive compounds with which to build scaffolds for bone and cartilage tissue engineering. Here we tested two non-standard ones, HE800 and GY785, for the two-dimensional (2-D) and three-dimensional (3-D) culture of osteoblasts (MC3T3-E1) and chondrocytes (C28/I2). These two glycosaminoglycan-like marine exopolysaccharides were incorporated into an injectable silylated hydroxypropylmethylcellulose-based hydrogel (Si-HPMC) that has already shown its suitability for bone and cartilage tissue engineering. Results showed that, similarly to hyaluronic acid (HA) (the control), HE800 and GY785 significantly improved the mechanical properties of the Si-HPMC hydrogel and induced the attachment of MC3T3-E1 and C28/I2 cells when these were cultured on top of the scaffolds. Si-HPMC hydrogel containing 0.67% HE800 exhibited the highest compressive modulus (11kPa) and allowed the best cell dispersion, especially of MC3T3-E1 cells. However, these cells did not survive when cultured in 3-D within hydrogels containing HE800, in contrast to C28/I2 cells. The latter proliferated in the microenvironment or concentrically depending on the nature of the hydrogel. Among all the constructs tested the Si-HPMC hydrogels containing 0.34% HE800 or 0.67% GY785 or 0.67% HA presented the most interesting features for cartilage tissue engineering applications, since they offered the highest compressive modulus (9.5-11kPa) while supporting the proliferation of chondrocytes.
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Barbieri D, Yuan H, de Groot F, Walsh WR, de Bruijn JD. Influence of different polymeric gels on the ectopic bone forming ability of an osteoinductive biphasic calcium phosphate ceramic. Acta Biomater 2011; 7:2007-14. [PMID: 21241835 DOI: 10.1016/j.actbio.2011.01.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Revised: 01/07/2011] [Accepted: 01/12/2011] [Indexed: 02/06/2023]
Abstract
To evaluate moldable osteoinductive putties for bone repair we combined microstructured biphasic calcium phosphate (BCP) particles with five different polymeric gels, carboxymethyl cellulose (CMC), Pluronic(®) F-127 (PLU), polyvinyl alcohol (PVA), chitosan (CHI) and alginate (ALG). In vitro gel dissolution showed that CMC, PLU and ALG gels dissolved rapidly (within hours), while the CHI gel took several days and the PVA gel did not dissolve within 2 weeks. Implanting the putty formulations into sheep muscle for 12 weeks demonstrated ectopic bone formation in the control BCP group as well as the putties prepared with dissolving gels (CMC, PLU, ALG and CHI). Bone was not seen in the putty comprising PVA. Quantitative data showed that the CMC and PLU gels did not significantly affect the osteoinductivity of BCP granules, while the ALG and CHI gels showed a significant decrease in bone formation. These results suggest that the dissolvability and chemistry of the gels may be factors affecting the osteoinduction of the putties.
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50
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Mazzoleni G, Boukhechba F, Steimberg N, Boniotti J, Bouler JM, Rochet N. Impact of Dynamic Culture in the RCCS! Bioreactor on a Three-Dimensional Model of Bone Matrix Formation. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proeng.2011.04.603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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