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Dasgupta S, Gope A, Mukhopadhyay A, Kumar P, Chatterjee J, Barui A. Chitosan-collagen-fibrinogen uncrosslinked scaffolds possessing skin regeneration and vascularization potential. J Biomed Mater Res A 2023; 111:725-739. [PMID: 36573698 DOI: 10.1002/jbm.a.37488] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/15/2022] [Accepted: 12/15/2022] [Indexed: 12/28/2022]
Abstract
Clinical success of regenerative medicine for treating deep-tissue skin injuries depends on the availability of skin grafts. Though bioengineered constructs are tested clinically, lack of neovascularization provide only superficial healing. Thus constructs, which promotes wound healing and supports vascularization has gained priority in tissue engineering. In this study, chitosan-collagen-fibrinogen (CCF) scaffold was fabricated using freeze-drying method without using any chemical crosslinkers. CCF scaffolds proved cytocompatibility and faster healing in in vitro scratch assay of primary human adult dermal fibroblasts cells with progressively increasing vascular endothelial growth factor-A and reducing vascular endothelial growth factor receptor 1 expressions. Skin regeneration evaluated on in vivo full thickness wound model confirmed faster remodeling with angiogenic signatures in CCF scaffold-implanted mice. Histopathological observations corroborated with stereo-zoom and SS-optical coherence tomography images of wound sites to prove the maturation of healing-bed, after 12 days of CCF implantation. Therefore, it is concluded that CCF scaffolds are promising for skin tissue regeneration and demonstrates pro-angiogenic potential.
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Affiliation(s)
- Shalini Dasgupta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Ayan Gope
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
| | - Anurup Mukhopadhyay
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
| | - Prashant Kumar
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
| | - Jyotirmoy Chatterjee
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
| | - Ananya Barui
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
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Capuana E, Carfì Pavia F, Lombardo ME, Rigogliuso S, Ghersi G, La Carrubba V, Brucato V. Mathematical and numerical modeling of an airlift perfusion bioreactor for tissue engineering applications. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Ruoß M, Kieber V, Rebholz S, Linnemann C, Rinderknecht H, Häussling V, Häcker M, Olde Damink LHH, Ehnert S, Nussler AK. Cell-Type-Specific Quantification of a Scaffold-Based 3D Liver Co-Culture. Methods Protoc 2019; 3:E1. [PMID: 31878071 PMCID: PMC7189675 DOI: 10.3390/mps3010001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 12/25/2022] Open
Abstract
In order to increase the metabolic activity of human hepatocytes and liver cancer cell lines, many approaches have been reported in recent years. The metabolic activity could be increased mainly by cultivating the cells in 3D systems or co-cultures (with other cell lines). However, if the system becomes more complex, it gets more difficult to quantify the number of cells (e.g., on a 3D matrix). Until now, it has been impossible to quantify different cell types individually in 3D co-culture systems. Therefore, we developed a PCR-based method that allows the quantification of HepG2 cells and 3T3-J2 cells separately in a 3D scaffold culture. Moreover, our results show that this method allows better comparability between 2D and 3D cultures in comparison to the often-used approaches based on metabolic activity measurements, such as the conversion of resazurin.
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Affiliation(s)
- Marc Ruoß
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | - Vanessa Kieber
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | - Silas Rebholz
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | - Caren Linnemann
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | - Helen Rinderknecht
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | - Victor Häussling
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | - Marina Häcker
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | | | - Sabrina Ehnert
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
| | - Andreas K. Nussler
- Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076 Tübingen, Germany; (V.K.); (S.R.); (C.L.); (H.R.); (V.H.); (M.H.); (S.E.); (A.K.N.)
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Davis BN, Yen R, Prasad V, Truskey GA. Oxygen consumption in human, tissue-engineered myobundles during basal and electrical stimulation conditions. APL Bioeng 2019; 3:026103. [PMID: 31149650 DOI: 10.1063/1.5093417] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 04/30/2019] [Indexed: 02/07/2023] Open
Abstract
During three-dimensional culture of skeletal muscle in vitro, electrical stimulation provides an important cue to enhance skeletal muscle mimicry of the in vivo structure and function. However, increased respiration can cause oxygen transport limitations in these avascular three-dimensional constructs, leading to a hypoxic, necrotic core, or nonuniform cell distributions in larger constructs. To enhance oxygen transport with convection, oxygen concentrations were measured using an optical sensor at the inlet and outlet of an 80 μl fluid volume microphysiological system (MPS) flow chamber containing three-dimensional human skeletal muscle myobundles. Finite element model simulations of convection around myobundles and oxygen metabolism by the myobundles in the 80 μl MPS flow chamber agreed well with the oxygen consumption rate (OCR) at different flow rates, suggesting that under basal conditions, mass transfer limitations were negligible for flow rates above 1.5 μl s-1. To accommodate electrodes for electrical stimulation, a modified 450 μl chamber was constructed. Electrical stimulation for 30 min increased the measured rate of oxygen consumption by the myobundles to slightly over 2 times the basal OCR. Model simulations indicate that mass transfer limitations were significant during electrical stimulation and, in the absence of mass transfer limitations, electrical stimulation induced about a 20-fold increase in the maximum rate of oxygen consumption. The results indicate that simulated exercise conditions increase respiration of skeletal muscle and mass transfer limitations reduce the measured levels of oxygen uptake, which may affect previous studies that model exercise with engineered muscle.
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Affiliation(s)
- Brittany N Davis
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, USA
| | - Ringo Yen
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, USA
| | - Varun Prasad
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, USA
| | - George A Truskey
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, USA
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Salifu A, Lekakou C, Labeed F. Multilayer cellular stacks of gelatin-hydroxyapatite fiber scaffolds for bone tissue engineering. J Biomed Mater Res A 2016; 105:779-789. [DOI: 10.1002/jbm.a.35954] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 10/17/2016] [Accepted: 10/25/2016] [Indexed: 11/07/2022]
Affiliation(s)
- A.A. Salifu
- Advanced Materials Centre; University of Surrey; Guildford GU2 7XH United Kingdom
| | - C. Lekakou
- Advanced Materials Centre; University of Surrey; Guildford GU2 7XH United Kingdom
| | - F. Labeed
- Biomedical Engineering Centre; University of Surrey; Guildford GU2 7XH United Kingdom
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Pandey G, Mittapelly N, Pant A, Sharma S, Singh P, Banala VT, Trivedi R, Shukla P, Mishra P. Dual functioning microspheres embedded crosslinked gelatin cryogels for therapeutic intervention in osteomyelitis and associated bone loss. Eur J Pharm Sci 2016; 91:105-13. [DOI: 10.1016/j.ejps.2016.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/16/2016] [Accepted: 06/06/2016] [Indexed: 01/24/2023]
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Santana BP, Nedel F, Perelló Ferrúa C, Marques e Silva R, da Silva AF, Demarco FF, Lenin Villarreal Carreño N. Comparing different methods to fix and to dehydrate cells on alginate hydrogel scaffolds using scanning electron microscopy. Microsc Res Tech 2015; 78:553-61. [PMID: 25871651 DOI: 10.1002/jemt.22508] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 03/28/2015] [Indexed: 01/15/2023]
Abstract
Scanning electron microscopy (SEM) is commonly used in the analysis of scaffolds morphology, as well as cell attachment, morphology and spreading on to the scaffolds. However, so far a specific methodology to prepare the alginate hydrogel (AH) scaffolds for SEM analysis has not been evaluated. This study compared different methods to fix/dehydrate cells in AH scaffolds for SEM analysis. AH scaffolds were prepared and seeded with NIH/3T3 cell line; fixed with glutaraldehyde, osmium tetroxide, or the freeze drying method and analyzed by SEM. Results demonstrated that the freeze dried method interferes less with cell morphology and density, and preserves the scaffolds structure. The fixation with glutaraldehyde did not affect cells morphology and density; however, the scaffolds morphology was affected in some level. The fixation with osmium tetroxide interfered in the natural structure of cells and scaffold. In conclusion the freeze drying and glutaraldehyde are suitable methods for cell fixation in AH scaffold for SEM, although scaffolds structure seems to be affected by glutaraldehyde.
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Affiliation(s)
- Bianca Palma Santana
- Nucleus of Cellular and Tecidual Biology (NCTBio), Post-Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fernanda Nedel
- Nucleus of Cellular and Tecidual Biology (NCTBio), Post-Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil.,Post-Graduate Program in Health and Behavior, Catholic University of Pelotas, Pelotas, RS, Brazil
| | - Camila Perelló Ferrúa
- Nucleus of Cellular and Tecidual Biology (NCTBio), Post-Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | - Adriana Fernandes da Silva
- Nucleus of Cellular and Tecidual Biology (NCTBio), Post-Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Flávio Fernando Demarco
- Nucleus of Cellular and Tecidual Biology (NCTBio), Post-Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
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Use of flow, electrical, and mechanical stimulation to promote engineering of striated muscles. Ann Biomed Eng 2013; 42:1391-405. [PMID: 24366526 DOI: 10.1007/s10439-013-0966-4] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 12/18/2013] [Indexed: 12/12/2022]
Abstract
The field of tissue engineering involves design of high-fidelity tissue substitutes for predictive experimental assays in vitro and cell-based regenerative therapies in vivo. Design of striated muscle tissues, such as cardiac and skeletal muscle, has been particularly challenging due to a high metabolic demand and complex cellular organization and electromechanical function of the native tissues. Successful engineering of highly functional striated muscles may thus require creation of biomimetic culture conditions involving medium perfusion, electrical and mechanical stimulation. When optimized, these external cues are expected to synergistically and dynamically activate important intracellular signaling pathways leading to accelerated muscle growth and development. This review will discuss the use of different types of tissue culture bioreactors aimed at providing conditions for enhanced structural and functional maturation of engineered striated muscles.
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Cheung JW, Rose EE, Paul Santerre J. Perfused culture of gingival fibroblasts in a degradable/polar/hydrophobic/ionic polyurethane (D-PHI) scaffold leads to enhanced proliferation and metabolic activity. Acta Biomater 2013; 9:6867-75. [PMID: 23416579 DOI: 10.1016/j.actbio.2013.02.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 02/01/2013] [Accepted: 02/05/2013] [Indexed: 01/02/2023]
Abstract
Periodontal diseases cause the breakdown of the tooth-supporting gingival tissue. In treatments aimed at gingival tissue regeneration, tissue engineering is preferred over the common treatments such as scaling. Perfused (dynamic) culture has been shown to increase cell growth in tissue-engineered scaffolds. Since gingival tissues are highly vascularized, it was desired to investigate the influence of perfusion on the function of human gingival fibroblasts (HGF) when cultured in a degradable/polar/hydrophobic/ionic polyurethane scaffold during the early culture phase (4weeks) of engineering gingival tissues. It was observed that the growth of HGF was continuous over 28days in dynamic culture (3-fold increase, p<0.05), while it was reduced after 14days in static culture (i.e. no flow condition). Cell metabolic activity, as measured by a WST-1 assay, and total protein production show that HGF were in different metabolic states in the dynamic vs. static cultures. Observations from scanning electron microscopy and type I collagen (Col I) production measured by Western blotting suggest that medium perfusion significantly promoted collagen production in HGF after the first 4weeks of culture (p<0.05). The different proliferative and metabolic states for HGF in the perfused scaffolds suggest a different cell phenotype which may favour tissue regeneration.
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Magrofuoco E, Elvassore N, Doyle FJ. Theoretical analysis of insulin-dependent glucose uptake heterogeneity in 3D bioreactor cell culture. Biotechnol Prog 2012; 28:833-45. [DOI: 10.1002/btpr.1539] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Revised: 02/27/2012] [Indexed: 11/08/2022]
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Carraro A, Flaibani M, Cillo U, Michelotto L, Magrofuoco E, Buggio M, Abatangelo G, Cortivo R, Herrera MB, Tetta C, Elvassore N, Zavan B. A combining method to enhance the in vitro differentiation of hepatic precursor cells. Tissue Eng Part C Methods 2010; 16:1543-51. [PMID: 20504066 DOI: 10.1089/ten.tec.2009.0795] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The ideal bioartificial liver should be designed to reproduce as nearly as possible in vitro the habitat that hepatic cells find in vivo. In the present work, we investigated the in vitro perfusion condition with a view to improving the hepatic differentiation of pluripotent human liver stem cells (HLSCs) from adult liver. Tissue engineering strategies based on the cocultivation of HLSCs with hepatic stellate cells (ITO) and with several combinations of medium were applied to improve viability and differentiation. A mathematical model estimated the best flow rate for perfused cultures lasting up to 7 days. Morphological and functional assays were performed. Morphological analyses confirmed that a flow of perfusion medium (assured by the bioreactor system) enabled the in vitro organization of the cells into liver clusters even in the deeper levels of the sponge. Our results showed that, when cocultured with ITO using stem cell medium, HLSCs synthesized a large amount of albumin and the MTT test confirmed an improvement in cell proliferation. In conclusion, this study shows that our in vitro cell conditions promote the formation of clusters of HLSCs and enhance the functional differentiation into a mature hepatic population.
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Affiliation(s)
- Amedeo Carraro
- Hepatobiliary and Liver Transplant Unit, Department of General Surgery and Organ Transplantation, University of Padova, Padova, Italy
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