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Xie M, Liao M, Chen S, Zhu D, Zeng Q, Wang P, Su C, Lian R, Chen J, Zhang J. Cell spray printing combined with Lycium barbarum glycopeptide promotes repair of corneal epithelial injury. Exp Eye Res 2024; 244:109928. [PMID: 38750781 DOI: 10.1016/j.exer.2024.109928] [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: 01/02/2024] [Revised: 04/29/2024] [Accepted: 05/12/2024] [Indexed: 05/19/2024]
Abstract
The corneal epithelium, located as the outermost layer of the cornea, is inherently susceptible to injuries that may lead to corneal opacities and compromise visual acuity. Rapid restoration of corneal epithelial injury is crucial for maintaining the transparency and integrity of the cornea. Cell spray treatment emerges as an innovative and effective approach in the field of regenerative medicine. In our study, a cell spray printing platform was established, and the optimal printing parameters were determined to be a printing air pressure of 5 PSI (34.47 kPa) and a liquid flow rate of 30 ml/h. Under these conditions, the viability and phenotype of spray-printed corneal epithelial cells were preserved. Moreover, Lycium barbarum glycopeptide (LBGP), a glycoprotein purified from wolfberry, enhanced proliferation while simultaneously inhibiting apoptosis of the spray-printed corneal epithelial cells. We found that the combination of cell spray printing and LBGP facilitated the rapid construction of multilayered cell sheets on flat and curved collagen membranes in vitro. Furthermore, the combined cell spray printing and LBGP accelerated the recovery of the rat corneal epithelium in the mechanical injury model. Our findings offer a therapeutic avenue for addressing corneal epithelial injuries and regeneration.
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Affiliation(s)
- Mengyuan Xie
- Department of Optoelectronic Engineering, College of Physics and Optoelectronic Engineering, Jinan University, Guangzhou, 510632, China
| | - Meizhong Liao
- Department of Optoelectronic Engineering, College of Physics and Optoelectronic Engineering, Jinan University, Guangzhou, 510632, China
| | - Sihui Chen
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China
| | - Deliang Zhu
- Guangdong Cardiovascular Institute, Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Qiaolang Zeng
- Department of Ophthalmology, Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, 570000, China
| | - Peiyuan Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, 510623, China
| | - Caiying Su
- Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Ruiling Lian
- Aier Eye Institute, Changsha, Hunan, 410015, China
| | - Jiansu Chen
- Ophthalmology Department, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, China; Aier Eye Institute, Changsha, Hunan, 410015, China; Key Laboratory for Regenerative Medicine, Ministry of Education, Jinan University, Guangzhou, 510632, China.
| | - Jun Zhang
- Department of Optoelectronic Engineering, College of Physics and Optoelectronic Engineering, Jinan University, Guangzhou, 510632, China; Guangdong Provincial Engineering Technology Research Center on Visible Light Communication, Jinan University, Guangzhou, 510632, China.
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2
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Yan X, Wang C, Ma Y, Wang Y, Song F, Zhong J, Wu X. Development of air-assisted atomization device for the delivery of cells in viscous biological ink prepared with sodium alginate. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2023; 94:044101. [PMID: 38081259 DOI: 10.1063/5.0102035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 03/19/2023] [Indexed: 12/18/2023]
Abstract
Skin wounds, especially large-area skin trauma, would bring great pain and even fatal risk to patients. In recent years, local autologous cell transplantation has shown great potential for wound healing and re-epithelialization. However, when the cell suspension prepared with normal saline is delivered to the wound, due to its low viscosity, it is easy to form big drops in the deposition and lose them from the wound bed, resulting in cell loss and uneven coverage. Here, we developed a novel air-assisted atomization device (AAAD). Under proper atomization parameters, 1% (w/v) sodium alginate (SA) solution carrier could be sprayed uniformly. Compared with normal saline, the run-off of the SA on the surface of porcine skin was greatly reduced. In theory, the spray height of AAAD could be set to achieve the adjustment of a large spray area of 1-12 cm2. In the measurement of droplet velocity and HaCaT cell viability, the spray height of AAAD would affect the droplet settling velocity and then the cell delivery survival rate (CSR). Compared with the spray height of 50 mm, the CSR of 100 mm was significantly higher and could reach 91.09% ± 1.82% (92.82% ± 2.15% in control). For bio-ink prepared with 1% (w/v) SA, the viability remained the same during the 72-h incubation. Overall, the novel AAAD uniformly atomized bio-ink with high viscosity and maintained the viability and proliferation rate during the delivery of living cells. Therefore, AAAD has great potential in cell transplantation therapy, especially for large-area or irregular skin wounds.
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Affiliation(s)
- Xintao Yan
- Academy for Engineering and Technology, Fudan University, Shanghai 200433, China
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Ce Wang
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Yuting Ma
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Yao Wang
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Feifei Song
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Jinfeng Zhong
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Xiaodong Wu
- Academy for Engineering and Technology, Fudan University, Shanghai 200433, China
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
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3
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Chang M, Liu J, Guo B, Fang X, Wang Y, Wang S, Liu X, Reid LM, Wang Y. Auto Micro Atomization Delivery of Human Epidermal Organoids Improves Therapeutic Effects for Skin Wound Healing. Front Bioeng Biotechnol 2020; 8:110. [PMID: 32154237 PMCID: PMC7046802 DOI: 10.3389/fbioe.2020.00110] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/04/2020] [Indexed: 12/11/2022] Open
Abstract
Severe skin wounds are often associated with large areas of damaged tissue, resulting in substantial loss of fluids containing electrolytes and proteins. The net result is a vulnerability clinically to skin infections. Therapies aiming to close these large openings are effective in reducing the complications of severe skin wounds. Recently, cell transplantation therapy showed the potential for rapid re-epithelialization of severe skin wounds. Here, we show the improved effects of cell transplantation therapy using a robust protocol of efficient expansion and delivery of epidermal cells for treatment of severe skin wounds. Human skin tissues were used to generate human epidermal organoids maintained under newly established culture conditions. The human epidermal organoids showed an improved capacity of passaging for at least 10 rounds, enabling organoids to expand to cell numbers required for clinical applications. A newly designed auto micro-atomization device (AMAD) was developed for delivery of human epidermal organoids onto the sites of severe skin wounds enhancing uniform and concentrated delivery of organoids, facilitating their engraftment and differentiation for skin reconstitution. With the optimal design and using pneumatic AMAD, both survival and functions of organoids were effectively protected during the spraying process. Cells in the sprayed human epidermal organoids participated in the regeneration of the epidermis at wound sites in a mouse model and accelerated wound healing significantly. The novel AMAD and out new protocol with enhanced effects with respect to both organoid expansion and efficient transplantation will be used for clincal treatments of complex, uneven, or large-area severe skin wounds.
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Affiliation(s)
- Mingyang Chang
- Stem Cell and Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing, China.,Translational Research Center, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Juan Liu
- Translational Research Center, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Baolin Guo
- Stem Cell and Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Xin Fang
- The State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
| | - Yi Wang
- Stem Cell and Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing, China
| | - Shuyong Wang
- Stem Cell and Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing, China.,Army Tuberculosis Prevention and Control Key Laboratory, Institute of Tuberculosis Research, The 8th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaofang Liu
- Department of Obstetrics and Gynecology, Air Force Medical Center, Chinese People's Liberation Army (PLA), Beijing, China
| | - Lola M Reid
- Department of Cell Biology and Physiology and Program in Molecular Biology and Biotechnology, University of North Carolina School of Medicine, Chapel Hill, NC, United States
| | - Yunfang Wang
- Stem Cell and Tissue Engineering Lab, Institute of Health Service and Transfusion Medicine, Beijing, China.,Translational Research Center, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
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4
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Dias JR, Ribeiro N, Baptista-Silva S, Costa-Pinto AR, Alves N, Oliveira AL. In situ Enabling Approaches for Tissue Regeneration: Current Challenges and New Developments. Front Bioeng Biotechnol 2020. [PMID: 32133354 DOI: 10.3389/fbioe.2020.00085.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In situ tissue regeneration can be defined as the implantation of tissue-specific biomaterials (by itself or in combination with cells and/or biomolecules) at the tissue defect, taking advantage of the surrounding microenvironment as a natural bioreactor. Up to now, the structures used were based on particles or gels. However, with the technological progress, the materials' manipulation and processing has become possible, mimicking the damaged tissue directly at the defect site. This paper presents a comprehensive review of current and advanced in situ strategies for tissue regeneration. Recent advances to put in practice the in situ regeneration concept have been mainly focused on bioinks and bioprinting techniques rather than the combination of different technologies to make the real in situ regeneration. The limitation of conventional approaches (e.g., stem cell recruitment) and their poor ability to mimic native tissue are discussed. Moreover, the way of advanced strategies such as 3D/4D bioprinting and hybrid approaches may contribute to overcome the limitations of conventional strategies are highlighted. Finally, the future trends and main research challenges of in situ enabling approaches are discussed considering in vitro and in vivo evidence.
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Affiliation(s)
- Juliana R Dias
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Nilza Ribeiro
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
| | - Sara Baptista-Silva
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
| | - Ana Rita Costa-Pinto
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Ana L Oliveira
- CBQF - Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
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5
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Dias JR, Ribeiro N, Baptista-Silva S, Costa-Pinto AR, Alves N, Oliveira AL. In situ Enabling Approaches for Tissue Regeneration: Current Challenges and New Developments. Front Bioeng Biotechnol 2020; 8:85. [PMID: 32133354 PMCID: PMC7039825 DOI: 10.3389/fbioe.2020.00085] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/30/2020] [Indexed: 12/15/2022] Open
Abstract
In situ tissue regeneration can be defined as the implantation of tissue-specific biomaterials (by itself or in combination with cells and/or biomolecules) at the tissue defect, taking advantage of the surrounding microenvironment as a natural bioreactor. Up to now, the structures used were based on particles or gels. However, with the technological progress, the materials' manipulation and processing has become possible, mimicking the damaged tissue directly at the defect site. This paper presents a comprehensive review of current and advanced in situ strategies for tissue regeneration. Recent advances to put in practice the in situ regeneration concept have been mainly focused on bioinks and bioprinting techniques rather than the combination of different technologies to make the real in situ regeneration. The limitation of conventional approaches (e.g., stem cell recruitment) and their poor ability to mimic native tissue are discussed. Moreover, the way of advanced strategies such as 3D/4D bioprinting and hybrid approaches may contribute to overcome the limitations of conventional strategies are highlighted. Finally, the future trends and main research challenges of in situ enabling approaches are discussed considering in vitro and in vivo evidence.
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Affiliation(s)
- Juliana R. Dias
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Nilza Ribeiro
- CBQF – Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
| | - Sara Baptista-Silva
- CBQF – Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
| | - Ana Rita Costa-Pinto
- CBQF – Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Ana L. Oliveira
- CBQF – Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa1, Porto, Portugal
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6
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Hu X, Xu J, Li W, Li L, Parungao R, Wang Y, Zheng S, Nie Y, Liu T, Song K. Therapeutic "Tool" in Reconstruction and Regeneration of Tissue Engineering for Osteochondral Repair. Appl Biochem Biotechnol 2019; 191:785-809. [PMID: 31863349 DOI: 10.1007/s12010-019-03214-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 12/05/2019] [Indexed: 02/07/2023]
Abstract
Repairing osteochondral defects to restore joint function is a major challenge in regenerative medicine. However, with recent advances in tissue engineering, the development of potential treatments is promising. In recent years, in addition to single-layer scaffolds, double-layer or multilayer scaffolds have been prepared to mimic the structure of articular cartilage and subchondral bone for osteochondral repair. Although there are a range of different cells such as umbilical cord stem cells, bone marrow mesenchyml stem cell, and others that can be used, the availability, ease of preparation, and the osteogenic and chondrogenic capacity of these cells are important factors that will influence its selection for tissue engineering. Furthermore, appropriate cell proliferation and differentiation of these cells is also key for the optimal repair of osteochondral defects. The development of bioreactors has enhanced methods to stimulate the proliferation and differentiation of cells. In this review, we summarize the recent advances in tissue engineering, including the development of layered scaffolds, cells, and bioreactors that have changed the approach towards the development of novel treatments for osteochondral repair.
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Affiliation(s)
- Xueyan Hu
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Jie Xu
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Wenfang Li
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China.,Key Laboratory of Biological Medicines, Universities of Shandong Province Weifang Key Laboratory of Antibody Medicines, School of Bioscience and Technology, Weifang Medical University, Weifang, 261053, China
| | - Liying Li
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Roxanne Parungao
- Burns Research Group, ANZAC Research Institute, University of Sydney, Concord, NSW, 2139, Australia
| | - Yiwei Wang
- Burns Research Group, ANZAC Research Institute, University of Sydney, Concord, NSW, 2139, Australia
| | - Shuangshuang Zheng
- Zhengzhou Institute of Emerging Industrial Technology, Zhengzhou, 450000, China
| | - Yi Nie
- Zhengzhou Institute of Emerging Industrial Technology, Zhengzhou, 450000, China. .,Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Tianqing Liu
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China.
| | - Kedong Song
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China.
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7
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Dijkstra K, Huitsing RP, Custers RJ, Kouwenhoven JWM, Bleys RL, Vonk LA, Saris DB. Preclinical Feasibility of the Bio-Airbrush for Arthroscopic Cell-Based Cartilage Repair. Tissue Eng Part C Methods 2019; 25:379-388. [DOI: 10.1089/ten.tec.2019.0050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Koen Dijkstra
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Roeland P.J. Huitsing
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Roel J.H. Custers
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Ronald L.A.W. Bleys
- Department of Anatomy, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Lucienne A. Vonk
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Daniël B.F. Saris
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
- MIRA Institute for Biotechnology and Technical Medicine, University of Twente, Enschede, The Netherlands
- Department of Orthopedics, Mayo Clinic, Rochester, Minnesota
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8
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PVDF nanofibers obtained by solution blow spinning with use of a commercial airbrush. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1731-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Dijkstra K, Hendriks J, Karperien M, Vonk LA, Saris DB. Arthroscopic Airbrush-Assisted Cell Spraying for Cartilage Repair: Design, Development, and Characterization of Custom-Made Arthroscopic Spray Nozzles. Tissue Eng Part C Methods 2017; 23:505-515. [DOI: 10.1089/ten.tec.2017.0228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Koen Dijkstra
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jan Hendriks
- Department of Developmental BioEngineering, University of Twente, Enschede, The Netherlands
| | - Marcel Karperien
- Department of Developmental BioEngineering, University of Twente, Enschede, The Netherlands
| | - Lucienne A. Vonk
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Daniël B.F. Saris
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
- MIRA Institute for BioMedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
- Department of Orthopedics, Mayo Clinic, Rochester, Minnesota
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10
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Schwartz DM, Pehlivaner Kara MO, Goldstein AM, Ott HC, Ekenseair AK. Spray Delivery of Intestinal Organoids to Reconstitute Epithelium on Decellularized Native Extracellular Matrix. Tissue Eng Part C Methods 2017; 23:565-573. [PMID: 28756760 PMCID: PMC5592844 DOI: 10.1089/ten.tec.2017.0269] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/18/2017] [Indexed: 11/13/2022] Open
Abstract
The native extracellular matrix (ECM) serves as a unique platform for tissue engineering because it provides an organ-specific scaffold in terms of both matrix composition and tissue architecture. However, efficacious cell-seeding techniques for recellularizing the ECM constructs with appropriate cell types to restore biological function remain under development. In this study, the impact of spraying as a seeding technique for repopulation of decellularized small intestine was investigated. In a series of experiments, CaCo-2 cells were first used to investigate the effect of spray device type and pressure on cell viability and to optimize parameters for seeding intestinal epithelial cells. High cell viability and a homogeneous cell distribution were obtained when cell suspensions were sprayed through an airbrush at low pressure. Next, the effect of seeding method and spray pressure on the size and dispersal of intestinal organoids, a more complex and clinically relevant intestinal stem cell population, was evaluated. The feasibility of seeding intestinal epithelial cells onto decellularized scaffolds was next studied using sprayed CaCo-2 cells, which survived the spray-seeding process and formed a monolayer on the scaffold. Finally, airbrush seeding was used to spray intestinal organoids onto the scaffolds, with cell survival and tissue architecture evaluated after 1 week of culture. Organoids seeded through pipetting onto the decellularized scaffold survived, but demonstrated aggregation, with cells organized around multiple small lumens. In contrast, organoids airbrush spray seeded at 0.35 bar onto the decellularized scaffold not only engrafted but also demonstrated formation of an epithelial monolayer that resembled the absorptive surface found on intestinal villi. The results suggest that seeding cells through airbrush spraying holds great potential for use in tissue engineering, especially for large-scale tubular organ recellularization.
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Affiliation(s)
- Dana M Schwartz
- 1 Division of Pediatric Surgery, Department of Surgery, Massachusetts General Hospital , Boston, Massachusetts
| | | | - Allan M Goldstein
- 1 Division of Pediatric Surgery, Department of Surgery, Massachusetts General Hospital , Boston, Massachusetts
| | - Harald C Ott
- 3 Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital , Boston, Massachusetts
| | - Adam K Ekenseair
- 2 Department of Chemical Engineering, Northeastern University , Boston, Massachusetts
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11
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Pehlivaner Kara MO, Ekenseair AK. In situspray deposition of cell-loaded, thermally and chemically gelling hydrogel coatings for tissue regeneration. J Biomed Mater Res A 2016; 104:2383-93. [DOI: 10.1002/jbm.a.35774] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 04/21/2016] [Accepted: 05/04/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Meryem O. Pehlivaner Kara
- Department of Chemical Engineering; Northeastern University; 360 Huntington Avenue, 313 SN Boston Massachusetts 02115
| | - Adam K. Ekenseair
- Department of Chemical Engineering; Northeastern University; 360 Huntington Avenue, 313 SN Boston Massachusetts 02115
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12
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Hendriks J, Willem Visser C, Henke S, Leijten J, Saris DB, Sun C, Lohse D, Karperien M. Optimizing cell viability in droplet-based cell deposition. Sci Rep 2015; 5:11304. [PMID: 26065378 PMCID: PMC5387118 DOI: 10.1038/srep11304] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 04/24/2015] [Indexed: 01/21/2023] Open
Abstract
Biofabrication commonly involves the use of liquid droplets to transport cells to the printed structure. However, the viability of the cells after impact is poorly controlled and understood, hampering applications including cell spraying, inkjet bioprinting, and laser-assisted cell transfer. Here, we present an analytical model describing the cell viability after impact as a function of the cell-surrounding droplet characteristics. The model connects (1) the cell survival as a function of cell membrane elongation, (2) the membrane elongation as a function of the cell-containing droplet size and velocity, and (3) the substrate properties. The model is validated by cell viability measurements in cell spraying, which is a method for biofabrication and used for the treatment of burn wounds. The results allow for rational optimization of any droplet-based cell deposition technology, and we include practical suggestions to improve the cell viability in cell spraying.
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Affiliation(s)
- Jan Hendriks
- Department of Developmental BioEngineering, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, University of Twente, The Netherlands
| | - Claas Willem Visser
- Physics of Fluids Group, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, J. M. Burgers Centre for Fluid Dynamics, University of Twente, The Netherlands
| | - Sieger Henke
- Department of Developmental BioEngineering, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, University of Twente, The Netherlands
| | - Jeroen Leijten
- Department of Developmental BioEngineering, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, University of Twente, The Netherlands
| | - Daniël B.F. Saris
- Department of Orthopedics, UMC Utrecht, The Netherlands
- Department of Reconstructive Medicine, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, University of Twente, The Netherlands
| | - Chao Sun
- Physics of Fluids Group, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, J. M. Burgers Centre for Fluid Dynamics, University of Twente, The Netherlands
| | - Detlef Lohse
- Physics of Fluids Group, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, J. M. Burgers Centre for Fluid Dynamics, University of Twente, The Netherlands
| | - Marcel Karperien
- Department of Developmental BioEngineering, MIRA institute for Biomedical Technology & Technical Medicine, Faculty of Science and Technology, University of Twente, The Netherlands
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13
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Nebulized solvent ablation of aligned PLLA fibers for the study of neurite response to anisotropic-to-isotropic fiber/film transition (AFFT) boundaries in astrocyte-neuron co-cultures. Biomaterials 2015; 46:82-94. [PMID: 25678118 DOI: 10.1016/j.biomaterials.2014.12.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 12/01/2014] [Accepted: 12/16/2014] [Indexed: 12/18/2022]
Abstract
Developing robust in vitro models of in vivo environments has the potential to reduce costs and bring new therapies from the bench top to the clinic more efficiently. This study aimed to develop a biomaterial platform capable of modeling isotropic-to-anisotropic cellular transitions observed in vivo, specifically focusing on changes in cellular organization following spinal cord injury. In order to accomplish this goal, nebulized solvent patterning of aligned, electrospun poly-l-lactic acid (PLLA) fiber substrates was developed. This method produced a clear topographic transitional boundary between aligned PLLA fibers and an isotropic PLLA film region. Astrocytes were then seeded on these scaffolds, and a shift between oriented and non-oriented astrocytes was created at the anisotropic-to-isotropic fiber/film transition (AFFT) boundary. Orientation of chondroitin sulfate proteoglycans (CSPGs) and fibronectin produced by these astrocytes was analyzed, and it was found that astrocytes growing on the aligned fibers produced aligned arrays of CSPGs and fibronectin, while astrocytes growing on the isotropic film region produced randomly-oriented CSPG and fibronectin arrays. Neurite extension from rat dissociated dorsal root ganglia (DRG) was studied on astrocytes cultured on anisotropic, aligned fibers, isotropic films, or from fibers to films. It was found that neurite extension was oriented and longer on PLLA fibers compared to PLLA films. When dissociated DRG were cultured on the astrocytes near the AFFT boundary, neurites showed directed orientation that was lost upon growth into the isotropic film region. The AFFT boundary also restricted neurite extension, limiting the extension of neurites once they grew from the fibers and into the isotropic film region. This study reveals the importance of anisotropic-to-isotropic transitions restricting neurite outgrowth by itself. Furthermore, we present this scaffold as an alternative culture system to analyze neurite response to cellular boundaries created following spinal cord injury and suggest its usefulness to study cellular responses to any aligned-to-unorganized cellular boundaries seen in vivo.
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