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Barbon S, Banerjee A, Perin L, De Caro R, Parnigotto PP, Porzionato A. Editorial: Therapeutic potential of mesenchymal stem cells in organ and tissue regeneration. Front Bioeng Biotechnol 2023; 11:1333281. [PMID: 38098971 PMCID: PMC10720741 DOI: 10.3389/fbioe.2023.1333281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 11/22/2023] [Indexed: 12/17/2023] Open
Affiliation(s)
- Silvia Barbon
- Department of Neuroscience, Section of Human Anatomy, University of Padua, Padua, Italy
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling—TES Onlus, Padova, Italy
| | - Antara Banerjee
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Chennai, India
| | - Laura Perin
- GOFARR Laboratory, Children’s Hospital Los Angeles, Division of Urology, Saban Research Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Raffaele De Caro
- Department of Neuroscience, Section of Human Anatomy, University of Padua, Padua, Italy
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling—TES Onlus, Padova, Italy
| | - Pier Paolo Parnigotto
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling—TES Onlus, Padova, Italy
| | - Andrea Porzionato
- Department of Neuroscience, Section of Human Anatomy, University of Padua, Padua, Italy
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling—TES Onlus, Padova, Italy
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Camponogara F, Zanotti F, Trentini M, Tiengo E, Zanolla I, Pishavar E, Soliani E, Scatto M, Gargiulo P, Zambito Y, De Luca S, Ferroni L, Zavan B. Biomaterials for Regenerative Medicine in Italy: Brief State of the Art of the Principal Research Centers. Int J Mol Sci 2022; 23:8245. [PMID: 35897825 PMCID: PMC9368060 DOI: 10.3390/ijms23158245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/30/2022] [Accepted: 07/22/2022] [Indexed: 02/01/2023] Open
Abstract
Regenerative medicine is the branch of medicine that effectively uses stem cell therapy and tissue engineering strategies to guide the healing or replacement of damaged tissues or organs. A crucial element is undoubtedly the biomaterial that guides biological events to restore tissue continuity. The polymers, natural or synthetic, find wide application thanks to their great adaptability. In fact, they can be used as principal components, coatings or vehicles to functionalize several biomaterials. There are many leading centers for the research and development of biomaterials in Italy. The aim of this review is to provide an overview of the current state of the art on polymer research for regenerative medicine purposes. The last five years of scientific production of the main Italian research centers has been screened to analyze the current advancement in tissue engineering in order to highlight inputs for the development of novel biomaterials and strategies.
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Affiliation(s)
- Francesca Camponogara
- Translational Medicine Department, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (F.Z.); (M.T.); (E.T.); (E.P.)
| | - Federica Zanotti
- Translational Medicine Department, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (F.Z.); (M.T.); (E.T.); (E.P.)
| | - Martina Trentini
- Translational Medicine Department, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (F.Z.); (M.T.); (E.T.); (E.P.)
| | - Elena Tiengo
- Translational Medicine Department, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (F.Z.); (M.T.); (E.T.); (E.P.)
| | - Ilaria Zanolla
- Medical Sciences Department, University of Ferrara, 44121 Ferrara, Italy;
| | - Elham Pishavar
- Translational Medicine Department, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (F.Z.); (M.T.); (E.T.); (E.P.)
| | - Elisa Soliani
- Bioengineering Department, Imperial College London, London SW7 2BX, UK;
| | - Marco Scatto
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venezia, Italy;
| | - Paolo Gargiulo
- Institute for Biomedical and Neural Engineering, Reykjavík University, 101 Reykjavík, Iceland;
- Department of Science, Landspítali, 101 Reykjavík, Iceland
| | - Ylenia Zambito
- Chemical Department, University of Pisa, 56124 Pisa, Italy;
| | - Stefano De Luca
- Unit of Naples, Institute of Applied Sciences and Intelligent Systems, National Research Council, Via P. Castellino 111, 80131 Napoli, Italy;
| | - Letizia Ferroni
- Maria Cecilia Hospital, GVM Care & Research, 48033 Cotignola, Italy;
| | - Barbara Zavan
- Translational Medicine Department, University of Ferrara, 44121 Ferrara, Italy; (F.C.); (F.Z.); (M.T.); (E.T.); (E.P.)
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Franchetti G, Viel G, Fais P, Fichera G, Cecchin D, Cecchetto G, Giraudo C. Forensic applications of micro-computed tomography: a systematic review. Clin Transl Imaging 2022. [DOI: 10.1007/s40336-022-00510-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Abstract
Purpose
The aim of this systematic review was to provide a comprehensive overview of micro-CT current applications in forensic pathology, anthropology, odontology, and neonatology.
Methods
A bibliographic research on the electronic databases Pubmed and Scopus was conducted in the time frame 01/01/2001–31/12/2021 without any language restrictions and applying the following free-text search strategy: “(micro-computed tomography OR micro-CT) AND (forensic OR legal)”. The following inclusion criteria were used: (A) English language; (B) Application of micro-CT to biological and/or non-biological materials to address at least one forensic issue (e.g., age estimation, identification of post-mortem interval). The papers selected by three independent investigators have been then classified according to the investigated materials.
Results
The bibliographic search provided 651 records, duplicates excluded. After screening for title and/or abstracts, according to criteria A and B, 157 full-text papers were evaluated for eligibility. Ninety-three papers, mostly (64) published between 2017 and 2021, were included; considering that two papers investigated several materials, an overall amount of 99 classifiable items was counted when referring to the materials investigated. It emerged that bones and cartilages (54.55%), followed by teeth (13.13%), were the most frequently analyzed materials. Moreover, micro-CT allowed the collection of structural, qualitative and/or quantitative information also for soft tissues, fetuses, insects, and foreign materials.
Conclusion
Forensic applications of micro-CT progressively increased in the last 5 years with very promising results. According to this evidence, we might expect in the near future a shift of its use from research purposes to clinical forensic cases.
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Rodrigues AA, Batista NA, Malmonge SM, Casarin SA, Agnelli JAM, Santos AR, Belangero WD. Osteogenic differentiation of rat bone mesenchymal stem cells cultured on poly (hydroxybutyrate-co-hydroxyvalerate), poly (ε-caprolactone) scaffolds. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:138. [PMID: 34716801 PMCID: PMC8557177 DOI: 10.1007/s10856-021-06615-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 10/03/2021] [Indexed: 05/15/2023]
Abstract
Bioresorbable biomaterials can fill bone defects and act as temporary scaffold to recruit MSCs to stimulate their differentiation. Among the different bioresorbable polymers studied, this work focuses on poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) and poly(ε-caprolactone) (PCL). Were prepared blends of PHBV and PCL to obtain PHBV based biomaterials with good tenacity, important for bone tissue repair, associated with biocompatible properties of PCL. This study assesses the viability of Vero cells on scaffolds of PHBV, PCL, and their blends and the osteogenic differentiation of mesenchymal stem cells (MSCs). Materials were characterized in surface morphology, DSC and Impact Strength (IS). Vero cells and MSCs were assessed by MTT assay, cytochemical and SEM analysis. MSC osteogenic differentiation was evaluated through alizarin red staining and ALP activity. We found some roughness onto surface materials. DSC showed that the blends presented two distinct melting peaks, characteristic of immiscible blends. IS test confirmed that PHBV-PCL blends is an alternative for increase the tenacity of PHBV. MTT assay showed cells with high metabolic activities on extract toxicity test, but with low activity in the direct contact test. SEM analysis showed spreading cells with irregular and flattened morphology on different substrates. Cytochemical study revealed that MSCs maintained their morphology, although in smaller number for MSCs. The development of nodules of mineralized organic matrix in MSC cultures was identified by alizarin red staining and osteogenic differentiation was confirmed by the quantification of ALP activity. Thus, our scaffolds did not interfere on viability of Vero cells or the osteogenic differentiation of MSCs.
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Affiliation(s)
- Ana A Rodrigues
- Laboratório de Biomateriais em Ortopedia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Nilza A Batista
- Laboratório de Biomateriais em Ortopedia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Sônia M Malmonge
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS), Universidade Federal do ABC, São Bernardo do Campo, SP, Brazil
| | - Suzan A Casarin
- Departamento de Engenharia de Materiais, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - José Augusto M Agnelli
- Departamento de Engenharia de Materiais, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Arnaldo R Santos
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC, São Bernardo do Campo, SP, Brazil.
| | - William D Belangero
- Laboratório de Biomateriais em Ortopedia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
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Growth and Differentiation of Circulating Stem Cells After Extensive Ex Vivo Expansion. Tissue Eng Regen Med 2021; 18:411-427. [PMID: 33625723 PMCID: PMC8169750 DOI: 10.1007/s13770-021-00330-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/28/2020] [Accepted: 01/06/2021] [Indexed: 12/13/2022] Open
Abstract
Background: Stem cell therapy is gaining momentum as an effective treatment strategy for degenerative diseases. Adult stem cells isolated from various sources (i.e., cord blood, bone marrow, adipose tissue) are being considered as a realistic option due to their well-documented therapeutic potentials. Our previous studies standardized a method to isolate circulating multipotent cells (CMCs) that are able to sustain long term in vitro culture and differentiate towards mesodermal lineages. Methods: In this work, long-term cultures of CMCs were stimulated to study in vitro neuronal and myogenic differentiation. After induction, cells were analysed at different time points. Morphological studies were performed by scanning electron microscopy and specific neuronal and myogenic marker expression were evaluated using RT-PCR, flow cytometry and western blot. For myogenic plasticity study, CMCs were transplanted into in vivo model of chemically-induced muscle damage. Results: After neurogenic induction, CMCs showed characteristic dendrite-like morphology and expressed specific neuronal markers both at mRNA and protein level. The calcium flux activity of CMCs under stimulation with potassium chloride and the secretion of noradrenalin confirmed their ability to acquire a functional phenotype. In parallel, the myogenic potential of CMCs was confirmed by their ability to form syncytium-like structures in vitro and express myogenic markers both at early and late phases of differentiation. Interestingly, in a rat model of bupivacaine-induced muscle damage, CMCs integrated within the host tissue taking part in tissue repair. Conclusion: Overall, collected data demonstrated long-term cultured CMCs retain proliferative and differentiative potentials suggesting to be a good candidate for cell therapy.
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Zhu Q, Ma Z, Li H, Wang H, He Y. Enhancement of rotator cuff tendon-bone healing using combined aligned electrospun fibrous membranes and kartogenin. RSC Adv 2019; 9:15582-15592. [PMID: 35514830 PMCID: PMC9064336 DOI: 10.1039/c8ra09849b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/10/2019] [Indexed: 11/21/2022] Open
Abstract
Rotator cuff tear (RCT) is a major challenging shoulder disease because the fibrocartilage zone is hard to regenerate in the enthesis. Electrospun membranes with aligned nanofibers can guide the ordered tissue regeneration and kartogenin (KGN) is able to stimulate chondrocyte differentiation of mesenchymal stem cells. In this study, we fabricated a functional engineered scaffold for regenerating tendon-bone enthesis in RCTs by taking advantage of both the structural guiding ability of aligned nanofibers and the biology effects of KGN. Polycaprolactone (PCL) fibrous membranes with aligned nanofibers loaded with or without KGN were fabricated using electrospinning and characterized using scanning electron microscopy (SEM). The release of KGN from PCL membranes and the effects of KGN on differentiation of mesenchymal stem cells were investigated. Results indicated that 100 μM KGN-loaded PCL (KGN-PCL) membranes significantly stimulated chondrogenic and tenogenic differentiation of rat bone marrow stromal cells. In addition, after PCL and 100 μM KGN-PCL membranes were applied to an acute rat RCT model, KGN-PCL membranes promoted fibrocartilage formation and collagen organization as well as increased cross-sectional area and load failure. In conclusion, PCL electrospun fibrous membranes with aligned nanofibers and KGN could be an effective tissue engineering scaffold to enhance tendon-bone healing in RCTs.
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Affiliation(s)
- Qi Zhu
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital 600 Yishan Road Shanghai 200233 China
| | - Zhijie Ma
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University 1954 Huashan Road Shanghai 200030 China
- School of Biomedical Engineering, Shanghai Jiao Tong University 1954 Huashan Road Shanghai 200030 China
| | - Haiyan Li
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University 1954 Huashan Road Shanghai 200030 China
- School of Biomedical Engineering, Shanghai Jiao Tong University 1954 Huashan Road Shanghai 200030 China
| | - Haiming Wang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital 600 Yishan Road Shanghai 200233 China
| | - Yaohua He
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital 600 Yishan Road Shanghai 200233 China
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Eftekhari H, Jahandideh A, Asghari A, Akbarzadeh A, Hesaraki S. Histopathological Evaluation of Polycaprolactone Nanocomposite Compared with Tricalcium Phosphate in Bone Healing. J Vet Res 2018; 62:385-394. [PMID: 30584621 PMCID: PMC6295997 DOI: 10.2478/jvetres-2018-0055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 09/26/2018] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION In recent years, the use of bone scaffolds as bone tissue substitutes, especially the use of such as hydroxyapatite and tricalcium phosphate, has been very popular. Today, the use of modern engineering techniques and advances in nanotechnology have expanded the use of nanomaterials as bone scaffolds for bone tissue applications. MATERIAL AND METHODS This study was performed on 60 adult male New Zealand rabbits divided into four experimental groups: the control group without any treatment, the second group receiving hydroxyapatite, the third group treated with β-tricalcium phosphate, and the fourth group receiving nanocomposite polycaprolactone (PCL) scaffold. In a surgical procedure, a defect 6 mm in diameter was made in a hind limb femur. Four indexes were used to assess histopathology, which were union index, spongiosa index, cortex index, and bone marrow. RESULTS The results showed that nanocomposite PCL and control groups always had the respective highest and lowest values among all the groups at all time intervals. The histopathological assessment demonstrated that the quantity of newly formed lamellar bone in the nanocomposite PCL group was higher than in other groups. CONCLUSION All these data suggest that PCL had positive effects on the bone healing process, which could have great potential in tissue engineering and clinical applications.
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Affiliation(s)
| | | | - Ahmad Asghari
- Department of Clinical Science, 1477893855Tehran, Iran
| | - Abolfazl Akbarzadeh
- Universal Scientific Education and Research Network (USERN), 5165665811Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, 5165665811Tabriz, Iran
| | - Saeed Hesaraki
- Department of Pathobiology, Faculty of Specialized Veterinary Sciences, Science and Research Branch, Islamic Azad University, 1477893855Tehran, Iran
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Biomaterial Scaffolds in Regenerative Therapy of the Central Nervous System. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7848901. [PMID: 29805977 PMCID: PMC5899851 DOI: 10.1155/2018/7848901] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/18/2018] [Accepted: 02/21/2018] [Indexed: 02/08/2023]
Abstract
The central nervous system (CNS) is the most important section of the nervous system as it regulates the function of various organs. Injury to the CNS causes impairment of neurological functions in corresponding sites and further leads to long-term patient disability. CNS regeneration is difficult because of its poor response to treatment and, to date, no effective therapies have been found to rectify CNS injuries. Biomaterial scaffolds have been applied with promising results in regeneration medicine. They also show great potential in CNS regeneration for tissue repair and functional recovery. Biomaterial scaffolds are applied in CNS regeneration predominantly as hydrogels and biodegradable scaffolds. They can act as cellular supportive scaffolds to facilitate cell infiltration and proliferation. They can also be combined with cell therapy to repair CNS injury. This review discusses the categories and progression of the biomaterial scaffolds that are applied in CNS regeneration.
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Weisgerber DW, Milner DJ, Lopez-Lake H, Rubessa M, Lotti S, Polkoff K, Hortensius RA, Flanagan CL, Hollister SJ, Wheeler MB, Harley BAC. A Mineralized Collagen-Polycaprolactone Composite Promotes Healing of a Porcine Mandibular Defect. Tissue Eng Part A 2018; 24:943-954. [PMID: 29264958 DOI: 10.1089/ten.tea.2017.0293] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
A tissue engineering approach to address craniofacial defects requires a biomaterial that balances macro-scale mechanical stiffness and strength with the micron-scale features that promote cell expansion and tissue biosynthesis. Such criteria are often in opposition, leading to suboptimal mechanical competence or bioactivity. We report the use of a multiscale composite biomaterial that integrates a polycaprolactone (PCL) reinforcement structure with a mineralized collagen-glycosaminoglycan scaffold to circumvent conventional tradeoffs between mechanics and bioactivity. The composite promotes activation of the canonical bone morphogenetic protein 2 (BMP-2) pathway and subsequent mineralization of adipose-derived stem cells in the absence of supplemental BMP-2 or osteogenic media. We subsequently examined new bone infill in the acellular composite, scaffold alone, or PCL support in 10 mm dia. ramus mandibular defects in Yorkshire pigs. We report an analytical approach to quantify radial, angular, and depth bone infill from micro-computed tomography data. The collagen-PCL composite showed improved overall infill, and significantly increased radial and angular bone infill versus the PCL cage alone. Bone infill was further enhanced in the composite for defects that penetrated the medullary cavity, suggesting recruitment of marrow-derived cells. These results indicate a multiscale mineralized collagen-PCL composite offers strategic advantages for regenerative repair of craniofacial bone defects.
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Affiliation(s)
- Daniel W Weisgerber
- 1 Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Derek J Milner
- 2 Department of Animal Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois.,3 Carl R. Woese Institute of Genomic Biology, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Heather Lopez-Lake
- 2 Department of Animal Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Marcello Rubessa
- 2 Department of Animal Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois.,3 Carl R. Woese Institute of Genomic Biology, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Sammi Lotti
- 2 Department of Animal Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Kathryn Polkoff
- 2 Department of Animal Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Rebecca A Hortensius
- 4 Department of Bioengineering, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Colleen L Flanagan
- 5 Department of Biomedical Engineering, University of Michigan , Ann Arbor, Michigan
| | - Scott J Hollister
- 6 Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology , Atlanta, Georgia
| | - Matthew B Wheeler
- 2 Department of Animal Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois.,3 Carl R. Woese Institute of Genomic Biology, University of Illinois at Urbana-Champaign , Urbana, Illinois
| | - Brendan A C Harley
- 3 Carl R. Woese Institute of Genomic Biology, University of Illinois at Urbana-Champaign , Urbana, Illinois.,7 Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois
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Li Y, Zhang Z, Zhang Z. Porous Chitosan/Nano-Hydroxyapatite Composite Scaffolds Incorporating Simvastatin-Loaded PLGA Microspheres for Bone Repair. Cells Tissues Organs 2018; 205:20-31. [PMID: 29393155 DOI: 10.1159/000485502] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2017] [Indexed: 12/11/2022] Open
Abstract
The combination of bone tissue scaffolds with osteogenic induction factors is an effective strategy to facilitate bone healing processes. Here, chitosan (CS)/nano-hydroxyapatite (HA) scaffolds containing simvastatin (SIM)-loaded PLGA microspheres were fabricated by combining a freeze-drying technique with a modified water-oil-water emulsion method. The CS/HA weight ratio of 1:2 was selected by analyzing the effect of HA content on the micro-architecture, mechanical strength, and biocompatibility of the scaffold. Drug release kinetics showed that the SIM encapsulated in the scaffold was released in a sustained manner for up to 30 days. In vitro bioactivity study in rat bone marrow-derived mesenchymal stem cells showed that the SIM-loaded scaffolds had a strong ability in accelerating cell proliferation and inducing osteogenic differentiation. Moreover, an in vivo experiment using a rat calvarial defect model also documented that the SIM-loaded scaffolds had a remarkable effect on bone-promoting regeneration. The results of this study suggest that the SIM-loaded CS/HA scaffold is feasible and effective in bone repair and thus may provide a promising route for the treatment of critical-sized bone defects.
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11
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Bezerra F, Ferreira MR, Fontes GN, da Costa Fernandes CJ, Andia DC, Cruz NC, da Silva RA, Zambuzzi WF. Nano hydroxyapatite-blasted titanium surface affects pre-osteoblast morphology by modulating critical intracellular pathways. Biotechnol Bioeng 2017; 114:1888-1898. [DOI: 10.1002/bit.26310] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 03/16/2017] [Accepted: 04/03/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Fábio Bezerra
- Department of Chemistry and Biochemistry, Bioscience Institute; State University of São Paulo-UNESP; P.O. Box: 510, 18618-970, Rubião Jr, campus Botucatu, São Paulo Botucatu Brazil
| | - Marcel R. Ferreira
- Department of Chemistry and Biochemistry, Bioscience Institute; State University of São Paulo-UNESP; P.O. Box: 510, 18618-970, Rubião Jr, campus Botucatu, São Paulo Botucatu Brazil
| | - Giselle N. Fontes
- Laboratory of Microscopy Applied to Life Science-LAMAV, Directory of Metrology Applied to Life Science-Dimav; National Institute of Metrology Quality and Technology-INMETRO; Duque de Caxias Rio de Janeiro Brazil
| | - Célio Jr da Costa Fernandes
- Department of Chemistry and Biochemistry, Bioscience Institute; State University of São Paulo-UNESP; P.O. Box: 510, 18618-970, Rubião Jr, campus Botucatu, São Paulo Botucatu Brazil
| | - Denise C. Andia
- Health Science Institute, Dental Research Division, Department of Epigenetics; Paulista University - UNIP; São Paulo, SP Brazil
| | - Nilson C. Cruz
- Laboratório de Plasmas Tecnológicos; Instituto de Ciência e Tecnologia; Universidade Estadual Paulista; Sorocaba-SP Brazil
| | - Rodrigo A. da Silva
- Department of Chemistry and Biochemistry, Bioscience Institute; State University of São Paulo-UNESP; P.O. Box: 510, 18618-970, Rubião Jr, campus Botucatu, São Paulo Botucatu Brazil
| | - Willian F. Zambuzzi
- Department of Chemistry and Biochemistry, Bioscience Institute; State University of São Paulo-UNESP; P.O. Box: 510, 18618-970, Rubião Jr, campus Botucatu, São Paulo Botucatu Brazil
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Saxena V, Kim M, Keah NM, Neuwirth AL, Stoeckl BD, Bickard K, Restle DJ, Salowe R, Wang MY, Steinberg DR, Mauck RL. Anatomic Mesenchymal Stem Cell-Based Engineered Cartilage Constructs for Biologic Total Joint Replacement. Tissue Eng Part A 2016; 22:386-95. [PMID: 26871863 DOI: 10.1089/ten.tea.2015.0384] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Cartilage has a poor healing response, and few viable options exist for repair of extensive damage. Hyaluronic acid (HA) hydrogels seeded with mesenchymal stem cells (MSCs) polymerized through UV crosslinking can generate functional tissue, but this crosslinking is not compatible with indirect rapid prototyping utilizing opaque anatomic molds. Methacrylate-modified polymers can also be chemically crosslinked in a cytocompatible manner using ammonium persulfate (APS) and N,N,N',N'-tetramethylethylenediamine (TEMED). The objectives of this study were to (1) compare APS/TEMED crosslinking with UV crosslinking in terms of functional maturation of MSC-seeded HA hydrogels; (2) generate an anatomic mold of a complex joint surface through rapid prototyping; and (3) grow anatomic MSC-seeded HA hydrogel constructs using this alternative crosslinking method. Juvenile bovine MSCs were suspended in methacrylated HA (MeHA) and crosslinked either through UV polymerization or chemically with APS/TEMED to generate cylindrical constructs. Minipig porcine femoral heads were imaged using microCT, and anatomic negative molds were generated by three-dimensional printing using fused deposition modeling. Molded HA constructs were produced using the APS/TEMED method. All constructs were cultured for up to 12 weeks in a chemically defined medium supplemented with TGF-β3 and characterized by mechanical testing, biochemical assays, and histologic analysis. Both UV- and APS/TEMED-polymerized constructs showed increasing mechanical properties and robust proteoglycan and collagen deposition over time. At 12 weeks, APS/TEMED-polymerized constructs had higher equilibrium and dynamic moduli than UV-polymerized constructs, with no differences in proteoglycan or collagen content. Molded HA constructs retained their hemispherical shape in culture and demonstrated increasing mechanical properties and proteoglycan and collagen deposition, especially at the edges compared to the center of these larger constructs. Immunohistochemistry showed abundant collagen type II staining and little collagen type I staining. APS/TEMED crosslinking can be used to produce MSC-seeded HA-based neocartilage and can be used in combination with rapid prototyping techniques to generate anatomic MSC-seeded HA constructs for use in filling large and anatomically complex chondral defects or for biologic joint replacement.
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Affiliation(s)
- Vishal Saxena
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Philadelphia Veterans Affairs Medical Center , Philadelphia, Pennsylvania
| | - Minwook Kim
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Philadelphia Veterans Affairs Medical Center , Philadelphia, Pennsylvania.,3 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
| | - Niobra M Keah
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Philadelphia Veterans Affairs Medical Center , Philadelphia, Pennsylvania
| | - Alexander L Neuwirth
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Philadelphia Veterans Affairs Medical Center , Philadelphia, Pennsylvania
| | - Brendan D Stoeckl
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Philadelphia Veterans Affairs Medical Center , Philadelphia, Pennsylvania
| | - Kevin Bickard
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,3 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
| | - David J Restle
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,3 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
| | - Rebecca Salowe
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,3 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
| | - Margaret Ye Wang
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,3 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
| | - David R Steinberg
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Philadelphia Veterans Affairs Medical Center , Philadelphia, Pennsylvania
| | - Robert L Mauck
- 1 McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Philadelphia Veterans Affairs Medical Center , Philadelphia, Pennsylvania.,3 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
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Font Tellado S, Balmayor ER, Van Griensven M. Strategies to engineer tendon/ligament-to-bone interface: Biomaterials, cells and growth factors. Adv Drug Deliv Rev 2015; 94:126-40. [PMID: 25777059 DOI: 10.1016/j.addr.2015.03.004] [Citation(s) in RCA: 178] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 02/27/2015] [Accepted: 03/07/2015] [Indexed: 02/06/2023]
Abstract
Integration between tendon/ligament and bone occurs through a specialized tissue interface called enthesis. The complex and heterogeneous structure of the enthesis is essential to ensure smooth mechanical stress transfer between bone and soft tissues. Following injury, the interface is not regenerated, resulting in high rupture recurrence rates. Tissue engineering is a promising strategy for the regeneration of a functional enthesis. However, the complex structural and cellular composition of the native interface makes enthesis tissue engineering particularly challenging. Thus, it is likely that a combination of biomaterials and cells stimulated with appropriate biochemical and mechanical cues will be needed. The objective of this review is to describe the current state-of-the-art, challenges and future directions in the field of enthesis tissue engineering focusing on four key parameters: (1) scaffold and biomaterials, (2) cells, (3) growth factors and (4) mechanical stimuli.
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Affiliation(s)
- Sonia Font Tellado
- Department of Experimental Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany.
| | - Elizabeth R Balmayor
- Department of Experimental Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Martijn Van Griensven
- Department of Experimental Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Strasse 22, 81675 Munich, Germany
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