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Salehi Abar E, Vandghanooni S, Torab A, Jaymand M, Eskandani M. A comprehensive review on nanocomposite biomaterials based on gelatin for bone tissue engineering. Int J Biol Macromol 2024; 254:127556. [PMID: 37884249 DOI: 10.1016/j.ijbiomac.2023.127556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/09/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023]
Abstract
The creation of a suitable scaffold is a crucial step in the process of bone tissue engineering (BTE). The scaffold, acting as an artificial extracellular matrix, plays a significant role in determining the fate of cells by affecting their proliferation and differentiation in BTE. Therefore, careful consideration should be given to the fabrication approach and materials used for scaffold preparation. Natural polypeptides such as gelatin and collagen have been widely used for this purpose. The unique properties of nanoparticles, which vary depending on their size, charge, and physicochemical properties, have demonstrated potential in solving various challenges encountered in BTE. Therefore, nanocomposite biomaterials consisting of polymers and nanoparticles have been extensively used for BTE. Gelatin has also been utilized in combination with other nanomaterials to apply for this purpose. Composites of gelatin with various types of nanoparticles are particularly promising for creating scaffolds with superior biological and physicochemical properties. This review explores the use of nanocomposite biomaterials based on gelatin and various types of nanoparticles together for applications in bone tissue engineering.
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Affiliation(s)
- Elaheh Salehi Abar
- Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran; Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Somayeh Vandghanooni
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Torab
- Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Morteza Eskandani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
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Buss LF, de Martin GS, Martinez EF, Filgueiras IADAAP, Magnabosco JL, Alves BF, de Macedo Almeida B, Kotaka T, Teixeira ML, Ferreira JRM, da Rocha DN, Canal R, Aloise AC, Holliday LS, Pelegrine AA. Conditioned Media from Human Pulp Stem Cell Cultures Improve Bone Regeneration in Rat Calvarial Critical-Size Defects. J Funct Biomater 2023; 14:396. [PMID: 37623641 PMCID: PMC10455841 DOI: 10.3390/jfb14080396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023] Open
Abstract
The aim of this study was to test whether lyophilized conditioned media from human dental pulp mesenchymal stem cell cultures promote the healing of critical-size defects created in the calvaria of rats. Prior to the surgical procedure, the medium in which dental pulp stem cells were cultured was frozen and lyophilized. After general anesthesia, an 8 mm diameter bone defect was created in the calvaria of twenty-four rats. The defects were filled with the following materials: xenograft alone (G1) or xenograft associated with lyophilized conditioned medium (G2). After 14 or 42 days, the animals were euthanized, and the specimens processed for histologic and immunohistochemical analysis. Bone formation at the center of the defect was observed only in the G2 at 42 days. At both timepoints, increased staining for VEGF, a marker for angiogenesis, was observed in G2. Consistent with this, at 14 days, G2 also had a higher number of blood vessels detected by immunostaining with an anti-CD34 antibody. In conclusion, conditioned media from human dental pulp mesenchymal stem cell cultures had a positive effect on the regenerative process in rat critical-size bone defects. Both the formation of bone and enhancement of vascularization were stimulated by the conditioned media.
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Affiliation(s)
- Leonardo Fernandes Buss
- Faculdade de Odontologia São Leopoldo Mandic, Campinas 13045-755, SP, Brazil; (L.F.B.); (G.S.d.M.); (I.A.d.A.A.P.F.); (J.L.M.); (B.F.A.); (B.d.M.A.); (T.K.)
| | - Gustavo Sigrist de Martin
- Faculdade de Odontologia São Leopoldo Mandic, Campinas 13045-755, SP, Brazil; (L.F.B.); (G.S.d.M.); (I.A.d.A.A.P.F.); (J.L.M.); (B.F.A.); (B.d.M.A.); (T.K.)
| | | | | | - José Luiz Magnabosco
- Faculdade de Odontologia São Leopoldo Mandic, Campinas 13045-755, SP, Brazil; (L.F.B.); (G.S.d.M.); (I.A.d.A.A.P.F.); (J.L.M.); (B.F.A.); (B.d.M.A.); (T.K.)
| | - Bruno Frenhan Alves
- Faculdade de Odontologia São Leopoldo Mandic, Campinas 13045-755, SP, Brazil; (L.F.B.); (G.S.d.M.); (I.A.d.A.A.P.F.); (J.L.M.); (B.F.A.); (B.d.M.A.); (T.K.)
| | - Bruno de Macedo Almeida
- Faculdade de Odontologia São Leopoldo Mandic, Campinas 13045-755, SP, Brazil; (L.F.B.); (G.S.d.M.); (I.A.d.A.A.P.F.); (J.L.M.); (B.F.A.); (B.d.M.A.); (T.K.)
| | - Tatiana Kotaka
- Faculdade de Odontologia São Leopoldo Mandic, Campinas 13045-755, SP, Brazil; (L.F.B.); (G.S.d.M.); (I.A.d.A.A.P.F.); (J.L.M.); (B.F.A.); (B.d.M.A.); (T.K.)
| | | | | | | | | | - Antonio Carlos Aloise
- Division of Oral Implantology, Faculdade São Leopoldo Mandic, Campinas 13045-755, SP, Brazil;
| | | | - André Antonio Pelegrine
- Division of Oral Implantology, Faculdade São Leopoldo Mandic, Campinas 13045-755, SP, Brazil;
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Huang K, Yang MS, Tang YJ, Ling SY, Pan F, Liu XD, Chen J. Porous shape memory scaffold of dextran and hydroxyapatite for minimum invasive implantation for bone tissue engineering applications. J Biomater Appl 2020; 35:823-837. [PMID: 32842853 DOI: 10.1177/0885328220950062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Minimally invasive implantation of a porous scaffold of large volume into bone defect site remains a challenge. Scaffolds based on shape memory polymer (SMP) show potential to be delivered in the compact form via minimally invasive surgery. The present study chooses poly (ε-caprolactone)-diols (PCL-diols) as the SMP to cross-link carboxyl dextran via ester bonds together with particle leaching method to yield a porous SMP scaffold. The inner surfaces of porous SMP scaffold are then mineralized via in situ precipitation to yield mineralized porous SMP-hydroxyapatite (SMP-HA) scaffold. The porous SMP-HA scaffold possesses pore size of 400-500 μm, with HA particles uniformly distributed and orientationally aligned on the inner surfaces of scaffold. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) are carried out to identify the HA deposition. The phase transition temperature of the scaffold is adjusted to 38°C via changing the dosage of PCL (molecule weight: 2800) to endow the scaffold with shape deformation and fixed properties, as well as well-performed shape recovery property under body temperature. Bone marrow mesenchymal stem cells (BMSCs) adhere on the inner surfaces of SMP-HA scaffold, exhibiting larger spreading area when compared to cells adhered on SMP scaffold without HA, promoting its osteogenesis. In vivo degradation showed that the scaffold degrades completely after 6 months post-implantation. At the same time, significant tissue and capillary invasion indicated that the present porous SMP-HA scaffold hold great promise towards bone tissue engineering applications.
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Affiliation(s)
- Kai Huang
- Shanghai Zhabei District Library, Shanghai, China
| | - Mo-Song Yang
- Shanghai Zhabei District Library, Shanghai, China
| | - Yu-Jun Tang
- Shanghai Zhabei District Library, Shanghai, China
| | | | - Feng Pan
- Shanghai Zhabei District Library, Shanghai, China
| | | | - Jun Chen
- Department of Orthopedic, Zhabei Central Hospital of Jin'an District, Shanghai, China
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Mosquera-Perez R, Fernández-Olavarria A, Diaz-Sanchez RM, Gutierrez-Perez JL, Serrera-Figallo MÁ, Torres-Lagares D. Stem cells and oral surgery: A systematic review. J Clin Exp Dent 2019; 11:e1181-e1189. [PMID: 31824601 PMCID: PMC6894914 DOI: 10.4317/jced.56571] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 11/21/2019] [Indexed: 12/26/2022] Open
Abstract
Background Considering the structural loss that occurs after surgical procedures for cystic and tumoral pathology, in periodontitis, as well as the maxillary atrophy that determines the rehabilitation with dental implants, it is imperative to find satisfactory solutions. The opportunity provided by the findings in stem cells is a recent introduction in the field of oral surgery, based on the regenerative potential that these cells possess in order to restore defects at different levels of the oral cavity. The aim of this systematic review is to discover the real applications that stem cells may have in our treatments in the near future. Material and Methods We made a systematic review of the literature on the subject of stem cells to know the publications relating to them in the field of oral surgery since 2000. PRISMA statement was accomplished, as its official flow chart is used. Results This article draws clinical conclusions from basic research and those conducted in the first clinical cases to apply them in a short period of time to our patients in order to achieve excellence in regenerative therapies. Conclusions To summarize, stem cells may be a turning point in tissue regeneration, though the major challenge is to overcome the remaining obstacles before they become a realistic therapeutic alternative. Key words:Stem cells, oral surgery, cell therapy, regeneration.
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Affiliation(s)
- Regina Mosquera-Perez
- DDS. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | - Ana Fernández-Olavarria
- DDS. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | - Rosa-Maria Diaz-Sanchez
- DDS. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | - José-Luis Gutierrez-Perez
- MD, PhD. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
| | | | - Daniel Torres-Lagares
- DDS, PhD. Department of Stomatology, Faculty of Dentistry, University of Seville (US), Seville, Spain
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Adipogenic Mesenchymal Stem Cells and Hyaluronic Acid as a Cellular Compound for Bone Tissue Engineering. J Craniofac Surg 2019; 30:777-783. [DOI: 10.1097/scs.0000000000005392] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Thioredoxin-1 Protects Bone Marrow-Derived Mesenchymal Stromal Cells from Hyperoxia-Induced Injury In Vitro. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1023025. [PMID: 29599892 PMCID: PMC5828533 DOI: 10.1155/2018/1023025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 10/18/2017] [Accepted: 11/12/2017] [Indexed: 12/12/2022]
Abstract
Background The poor survival rate of mesenchymal stromal cells (MSC) transplanted into recipient lungs greatly limits their therapeutic efficacy for diseases like bronchopulmonary dysplasia (BPD). The aim of this study is to evaluate the effect of thioredoxin-1 (Trx-1) overexpression on improving the potential for bone marrow-derived mesenchymal stromal cells (BMSCs) to confer resistance against hyperoxia-induced cell injury. Methods 80% O2 was used to imitate the microenvironment surrounding-transplanted cells in the hyperoxia-induced lung injury in vitro. BMSC proliferation and apoptotic rates and the levels of reactive oxygen species (ROS) were measured. The effects of Trx-1 overexpression on the level of antioxidants and growth factors were investigated. We also investigated the activation of apoptosis-regulating kinase-1 (ASK1) and p38 mitogen-activated protein kinases (MAPK). Result Trx-1 overexpression significantly reduced hyperoxia-induced BMSC apoptosis and increased cell proliferation. We demonstrated that Trx-1 overexpression upregulated the levels of superoxide dismutase and glutathione peroxidase as well as downregulated the production of ROS. Furthermore, we illustrated that Trx-1 protected BMSCs against hyperoxic injury via decreasing the ASK1/P38 MAPK activation rate. Conclusion These results demonstrate that Trx-1 overexpression improved the ability of BMSCs to counteract hyperoxia-induced injury, thus increasing their potential to treat hyperoxia-induced lung diseases such as BPD.
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Filipowska J, Cholewa-Kowalska K, Wieczorek J, Semik D, Dąbrowski Z, Łączka M, Osyczka AM. Ectopic bone formation by gel-derived bioactive glass-poly-L-lactide-co-glycolide composites in a rabbit muscle model. Biomed Mater 2017; 12:015015. [DOI: 10.1088/1748-605x/aa4eb7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Fernandes G, Yang S. Application of platelet-rich plasma with stem cells in bone and periodontal tissue engineering. Bone Res 2016; 4:16036. [PMID: 28018706 PMCID: PMC5153571 DOI: 10.1038/boneres.2016.36] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 08/19/2016] [Accepted: 08/23/2016] [Indexed: 12/17/2022] Open
Abstract
Presently, there is a high paucity of bone grafts in the United States and worldwide. Regenerating bone is of prime concern due to the current demand of bone grafts and the increasing number of diseases causing bone loss. Autogenous bone is the present gold standard of bone regeneration. However, disadvantages like donor site morbidity and its decreased availability limit its use. Even allografts and synthetic grafting materials have their own limitations. As certain specific stem cells can be directed to differentiate into an osteoblastic lineage in the presence of growth factors (GFs), it makes stem cells the ideal agents for bone regeneration. Furthermore, platelet-rich plasma (PRP), which can be easily isolated from whole blood, is often used for bone regeneration, wound healing and bone defect repair. When stem cells are combined with PRP in the presence of GFs, they are able to promote osteogenesis. This review provides in-depth knowledge regarding the use of stem cells and PRP in vitro, in vivo and their application in clinical studies in the future.
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Affiliation(s)
- Gabriela Fernandes
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Shuying Yang
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, Buffalo, NY, USA
- Developmental Genomics Group, New York State Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
- Department of Anatomy & Cell Biology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
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A Long-Acting BMP-2 Release System Based on Poly(3-hydroxybutyrate) Nanoparticles Modified by Amphiphilic Phospholipid for Osteogenic Differentiation. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5878645. [PMID: 27379249 PMCID: PMC4917749 DOI: 10.1155/2016/5878645] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/17/2016] [Indexed: 12/31/2022]
Abstract
We explored a novel poly(3-hydroxybutyrate) (PHB) nanoparticle loaded with hydrophilic recombinant human BMP-2 with amphiphilic phospholipid (BPC-PHB NP) for a rapid-acting and long-acting delivery system of BMP-2 for osteogenic differentiation. The BPC-PHB NPs were prepared by a solvent evaporation method and showed a spherical particle with a mean particle size of 253.4 nm, mean zeta potential of −22.42 mV, and high entrapment efficiency of 77.18%, respectively. For BPC-PHB NPs, a short initial burst release of BMP-2 from NPs in 24 h was found and it has steadily risen to reach about 80% in 20 days for in vitro test. BPC-PHB NPs significantly reduced the burst release of BMP-2, as compared to that of PHB NPs loading BMP-2 without PL (B-PHB NPs). BPC-PHB NPs maintained the content of BMP-2 for a long-term osteogenic differentiation. The OCT-1 cells with BPC-PHB NPs have high ALP activity in comparison with others. The gene markers for osteogenic differentiation were significantly upregulated for sample with BPC-PHB NPs, implying that BPC-PHB NPs can be used as a rapid-acting and long-acting BMP-2 delivery system for osteogenic differentiation.
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Qu X, Cao Y, Chen C, Die X, Kang Q. A poly(lactide-co-glycolide) film loaded with abundant bone morphogenetic protein-2: A substrate-promoting osteoblast attachment, proliferation, and differentiation in bone tissue engineering. J Biomed Mater Res A 2015; 103:2786-96. [PMID: 25847124 DOI: 10.1002/jbm.a.35379] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 11/11/2014] [Accepted: 12/01/2014] [Indexed: 12/25/2022]
Affiliation(s)
- Xiangyang Qu
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
| | - Yujiang Cao
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
| | - Cong Chen
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
- Chongqing Stem Cell Therapy Engineering Technical Center; Chongqing 400014 China
| | - Xiaohong Die
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
- Chongqing Stem Cell Therapy Engineering Technical Center; Chongqing 400014 China
| | - Quan Kang
- Ministry of Education Key Laboratory of Child Development and Disorders; The Children's Hospital of Chongqing Medical University; Chongqing 400014 China
- Key Laboratory of Pediatrics in Chongqing; Chongqing 400014 China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Chongqing 400014 China
- Chongqing Stem Cell Therapy Engineering Technical Center; Chongqing 400014 China
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Paiva KBS, Granjeiro JM. Bone tissue remodeling and development: Focus on matrix metalloproteinase functions. Arch Biochem Biophys 2014; 561:74-87. [PMID: 25157440 DOI: 10.1016/j.abb.2014.07.034] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/17/2014] [Accepted: 07/21/2014] [Indexed: 12/25/2022]
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Guha Thakurta S, Kraft M, Viljoen HJ, Subramanian A. Enhanced depth-independent chondrocyte proliferation and phenotype maintenance in an ultrasound bioreactor and an assessment of ultrasound dampening in the scaffold. Acta Biomater 2014; 10:4798-4810. [PMID: 25065549 DOI: 10.1016/j.actbio.2014.07.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 07/11/2014] [Accepted: 07/14/2014] [Indexed: 01/20/2023]
Abstract
Chondrocyte-seeded scaffolds were cultured in an ultrasound (US)-assisted bioreactor, which supplied the cells with acoustic energy around resonance frequencies (~5.0 MHz). Polyurethane-polycarbonate (BM), chitosan (CS) and chitosan-n-butanol (CSB) based scaffolds with varying porosities were chosen and the following US regimen was employed: 15 kPa and 60 kPa, 5 min per application and 6 applications per day for 21 days. Non-stimulated scaffolds served as control. For BM scaffolds, US stimulation significantly impacted cell proliferation and depth-independent cell population density compared to controls. The highest COL2A1/COL1A1 ratios and ACAN mRNA were noted on US-treated BM scaffolds compared to controls. A similar trend was noted on US-treated cell-seeded CS and CSB scaffolds, though COL2A1/COL1A1 ratios were significantly lower compared to BM scaffolds. Expression of Sox-9 was also elevated under US and paralleled the COL2A1/COL1A1 ratio. As an original contribution, a simplified mathematical model based on Biot theory was developed to understand the propagation of the incident US wave through the scaffolds and the model analysis was connected to cellular responses. Scaffold architecture influenced the distribution of US field, with the US field being the least attenuated in BM scaffolds, thus coupling more mechanical energy into cells, and leading to increased cellular activity.
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Affiliation(s)
- Sanjukta Guha Thakurta
- Department of Chemical Engineering, 207L Othmer Hall, University of Nebraska-Lincoln, Lincoln, NE 68588-0643, USA
| | - Mikail Kraft
- Department of Chemical Engineering, 207L Othmer Hall, University of Nebraska-Lincoln, Lincoln, NE 68588-0643, USA
| | - Hendrik J Viljoen
- Department of Chemical Engineering, 207L Othmer Hall, University of Nebraska-Lincoln, Lincoln, NE 68588-0643, USA
| | - Anuradha Subramanian
- Department of Chemical Engineering, 207L Othmer Hall, University of Nebraska-Lincoln, Lincoln, NE 68588-0643, USA.
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El-Sayed FG, Camden JM, Woods LT, Khalafalla MG, Petris MJ, Erb L, Weisman GA. P2Y2 nucleotide receptor activation enhances the aggregation and self-organization of dispersed salivary epithelial cells. Am J Physiol Cell Physiol 2014; 307:C83-96. [PMID: 24760984 DOI: 10.1152/ajpcell.00380.2013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Hyposalivation resulting from salivary gland dysfunction leads to poor oral health and greatly reduces the quality of life of patients. Current treatments for hyposalivation are limited. However, regenerative medicine to replace dysfunctional salivary glands represents a revolutionary approach. The ability of dispersed salivary epithelial cells or salivary gland-derived progenitor cells to self-organize into acinar-like spheres or branching structures that mimic the native tissue holds promise for cell-based reconstitution of a functional salivary gland. However, the mechanisms involved in salivary epithelial cell aggregation and tissue reconstitution are not fully understood. This study investigated the role of the P2Y2 nucleotide receptor (P2Y2R), a G protein-coupled receptor that is upregulated following salivary gland damage and disease, in salivary gland reconstitution. In vitro results with the rat parotid acinar Par-C10 cell line indicate that P2Y2R activation with the selective agonist UTP enhances the self-organization of dispersed salivary epithelial cells into acinar-like spheres. Other results indicate that the P2Y2R-mediated response is dependent on epidermal growth factor receptor activation via the metalloproteases ADAM10/ADAM17 or the α5β1 integrin/Cdc42 signaling pathway, which leads to activation of the MAPKs JNK and ERK1/2. Ex vivo data using primary submandibular gland cells from wild-type and P2Y2R(-/-) mice confirmed that UTP-induced migratory responses required for acinar cell self-organization are mediated by the P2Y2R. Overall, this study suggests that the P2Y2R is a promising target for salivary gland reconstitution and identifies the involvement of two novel components of the P2Y2R signaling cascade in salivary epithelial cells, the α5β1 integrin and the Rho GTPase Cdc42.
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Affiliation(s)
- Farid G El-Sayed
- Department of Biochemistry, University of Missouri, Columbia, Missouri; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri
| | - Jean M Camden
- Department of Biochemistry, University of Missouri, Columbia, Missouri; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri
| | - Lucas T Woods
- Department of Biochemistry, University of Missouri, Columbia, Missouri; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri
| | - Mahmoud G Khalafalla
- Department of Biochemistry, University of Missouri, Columbia, Missouri; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri
| | - Michael J Petris
- Department of Biochemistry, University of Missouri, Columbia, Missouri; Department of Nutritional Sciences and Exercise Physiology, University of Missouri, Columbia, Missouri; and Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri
| | - Laurie Erb
- Department of Biochemistry, University of Missouri, Columbia, Missouri; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri
| | - Gary A Weisman
- Department of Biochemistry, University of Missouri, Columbia, Missouri; Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, Missouri
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Wang L, Wang H, Xu X, Wang D, Liu H. Insulin facilitates osteoblast differentiation. Cell Biol Int 2013; 37:1157-61. [PMID: 23788290 DOI: 10.1002/cbin.10147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 05/27/2013] [Indexed: 12/27/2022]
Abstract
Tissue engineering of bone has been increasingly used in the bone defect repair. To generate osteoblasts is a major approach, and here we have examined ways of improving the efficiency of producing osteoblasts. Adipose stem cells (ADSC) were prepared from rat mesentery tissue, and transfected with Cbfa1 gene vector or/and IGF-1R gene vector. The cells were stimulated with insulin. Osteocalcin expression by the ADSCs was assessed by quantitative RT-PCR (qRT-PCR), Western blotting and enzyme-linked immunobosorbent assay. Both genes Cbfa1 and IGF-1R were transfected in ADSCs, as shown by qRT-PCR and Western blotting. Stimulation by insulin in the culture increased osteocalcin expression in ADSCs transfected by both Cbfa1 and IGF-1R, but not in those transfected with only one of these two genes. Osteocalcin in the culture supernatant was also increased by stimulation with insulin. Thus IGF-1R gene transfer together with insulin stimulation can markedly increase the efficiency of generation of osteoblasts.
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Affiliation(s)
- Lin Wang
- Department of Stomatology, General Hospital of PLA, Beijing, 100853, China
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