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Nie J, Lou S, Pollet AMAO, van Vegchel M, Bouten CVC, den Toonder JMJ. A Cell Pre-Wrapping Seeding Technique for Hydrogel-Based Tubular Organ-On-A-Chip. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400970. [PMID: 38872259 DOI: 10.1002/advs.202400970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/28/2024] [Indexed: 06/15/2024]
Abstract
Organ-on-a-chip (OOC) models based on microfluidic technology are increasingly used to obtain mechanistic insight into (patho)physiological processes in humans, and they hold great promise for application in drug development and regenerative medicine. Despite significant progress in OOC development, several limitations of conventional microfluidic devices pose challenges. First, most microfluidic systems have rectangular cross sections and flat walls, and therefore tubular/ curved structures, like blood vessels and nephrons, are not well represented. Second, polymers used as base materials for microfluidic devices are much stiffer than in vivo extracellular matrix (ECM). Finally, in current cell seeding methods, challenges exist regarding precise control over cell seeding location, unreachable spaces due to flow resistances, and restricted dimensions/geometries. To address these limitations, an alternative cell seeding technique and a corresponding workflow is introduced to create circular cross-sectioned tubular OOC models by pre-wrapping cells around sacrificial fiber templates. As a proof of concept, a perfusable renal proximal tubule-on-a-chip is demonstrated with a diameter as small as 50 µm, cellular tubular structures with branches and curvature, and a preliminary vascular-renal tubule interaction model. The cell pre-wrapping seeding technique promises to enable the construction of diverse physiological/pathological models, providing tubular OOC systems for mechanistic investigations and drug development.
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Affiliation(s)
- Jing Nie
- Microsystems Research Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Soft Tissue Engineering & Mechanobiology Research Section, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Sha Lou
- Microsystems Research Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Soft Tissue Engineering & Mechanobiology Research Section, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Andreas M A O Pollet
- Microsystems Research Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Manon van Vegchel
- Microsystems Research Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Soft Tissue Engineering & Mechanobiology Research Section, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Carlijn V C Bouten
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Soft Tissue Engineering & Mechanobiology Research Section, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
| | - Jaap M J den Toonder
- Microsystems Research Section, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5600 MB, The Netherlands
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Yang R, Xu Y, Li R, Zhang Y, Xu Y, Yang L, Cui W, Wang L. Synergistic Biofilter Tube for Promoting Scarless Tendon Regeneration. NANO LETTERS 2024; 24:7381-7388. [PMID: 38833276 PMCID: PMC11194804 DOI: 10.1021/acs.nanolett.4c01540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
Inspired by the imbalance between extrinsic and intrinsic tendon healing, this study fabricated a new biofilter scaffold with a hierarchical structure based on a melt electrowriting technique. The outer multilayered fibrous structure with connected porous characteristics provides a novel passageway for vascularization and isolates the penetration of scar fibers, which can be referred to as a biofilter process. In vitro experiments found that the porous architecture in the outer layer can effectively prevent cell infiltration, whereas the aligned fibers in the inner layer can promote cell recruitment and growth, as well as the expression of tendon-associated proteins in a simulated friction condition. It was shown in vivo that the biofilter process could promote tendon healing and reduce scar invasion. Herein, this novel strategy indicates great potential to design new biomaterials for balancing extrinsic and intrinsic healing and realizing scarless tendon healing.
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Affiliation(s)
- Renhao Yang
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Yidong Xu
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Renxuan Li
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Yin Zhang
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Yang Xu
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Liuquan Yang
- School
of Mechanical Engineering, University of
Leeds, Leeds, LS2 9JT, U.K.
| | - Wenguo Cui
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
| | - Lei Wang
- Shanghai
Key Laboratory for Prevention and Treatment of Bone and Joint Diseases,
Department of Orthopedics, Sports Medicine Center, Shanghai Institute
of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, People’s Republic of China
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Xing Y, Gu Y, Guo L, Guo J, Xu Z, Xiao Y, Fang Z, Wang C, Feng ZG, Wang Z. Gelatin coating promotes in situ endothelialization of electrospun polycaprolactone vascular grafts. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:1161-1181. [PMID: 33830866 DOI: 10.1080/09205063.2021.1909413] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Rapid endothelialization is crucial for in situ tissue engineering vascular grafts to prevent graft failure in the long-term. Gelatin is a promising nature material that can promote endothelial cells (ECs) adhesion, proliferation, and migration. In this study, the internal surface of electrospun polycaprolactone (PCL) vascular grafts was coated with gelatin. Endothelialization and vascular wall remolding were investigated by imaging and histological studies in the rat abdominal aorta replacement model. The endothelialization of heparinized gelatin-coated PCL (GP-H) vascular grafts was more rapid and complete than heparinized PCL (P-H) grafts. Intimal hyperplasia was milder in the GP-H vascular grafts than the P-H vascular grafts in the long-term. Meanwhile, smooth muscle cells (SMCs) and extracellular matrix (ECM) regeneration were better in the GP-H vascular grafts. By comparison, an aneurysm was observed in the P-H group in 6 months. Calcification was observed in both groups. All vascular grafts were patient after implantation in both groups. Our results showed that gelatin coating on the internal surface of PCL grafts is a simple and effective way to promote endothelialization. A more rapid endothelialization and complete endothelium can inhibit intimal hyperplasia in the long-term.
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Affiliation(s)
- Yuehao Xing
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yongquan Gu
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Lianrui Guo
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jianming Guo
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zeqin Xu
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yonghao Xiao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Zhiping Fang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Cong Wang
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zeng-Guo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Zhonggao Wang
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, China
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Krüger-Genge A, Hauser S, Neffe AT, Liu Y, Lendlein A, Pietzsch J, Jung F. Response of Endothelial Cells to Gelatin-Based Hydrogels. ACS Biomater Sci Eng 2021; 7:527-540. [PMID: 33496571 DOI: 10.1021/acsbiomaterials.0c01432] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The establishment of confluent endothelial cell (EC) monolayers on implanted materials has been identified as a concept to avoid thrombus formation but is a continuous challenge in cardiovascular device engineering. Here, material properties of gelatin-based hydrogels obtained by reacting gelatin with varying amounts of lysine diisocyanate ethyl ester were correlated with the functional state of hydrogel contacting venous EC (HUVEC) and HUVEC's ability to form a monolayer on these hydrogels. The density of adherent HUVEC on the softest hydrogel at 37 °C (G' = 1.02 kPa, E = 1.1 ± 0.3 kPa) was significantly lower (125 mm-1) than on the stiffer hydrogels (920 mm-1; G' = 2.515 and 5.02 kPa, E = 4.8 ± 0.8 and 10.3 ± 1.2 kPa). This was accompanied by increased matrix metalloprotease activity (9 pmol·min-2 compared to 0.6 pmol·min-2) and stress fiber formation, while cell-to-cell contacts were comparable. Likewise, release of eicosanoids (e.g., prostacyclin release of 1.7 vs 0.2 pg·mL-1·cell-1) and the pro-inflammatory cytokine MCP-1 (8 vs <1.5 pg·mL-1·cell-1) was higher on the softer than on the stiffer hydrogels. The expressions of pro-inflammatory markers COX-2, COX-1, and RAGE were slightly increased on all hydrogels on day 2 (up to 200% of the control), indicating a weak inflammation; however, the levels dropped to below the control from day 6. The study revealed that hydrogels with higher moduli approached the status of a functionally confluent HUVEC monolayer. The results indicate the promising potential especially of the discussed gelatin-based hydrogels with higher G' as biomaterials for implants foreseen for the venous system.
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Affiliation(s)
- Anne Krüger-Genge
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
| | - Sandra Hauser
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Axel T Neffe
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Kantstr. 55, 14513 Teltow, Germany
| | - Yue Liu
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany
| | - Andreas Lendlein
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Kantstr. 55, 14513 Teltow, Germany.,Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,School of Science, Faculty of Chemistry and Food Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Friedrich Jung
- Institute of Active Polymers and Berlin-Brandenburg Centre for Regenerative Therapies (BCRT), Helmholtz-Zentrum Geesthacht, Kantstr. 55, 14513 Teltow, Germany.,Helmholtz Virtual Institute - Multifunctional Biomaterials for Medicine, Kantstr. 55, 14513 Teltow, Germany
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Krüger-Genge A, Schulz C, Kratz K, Lendlein A, Jung F. Comparison of two substrate materials used as negative control in endothelialization studies: Glass versus polymeric tissue culture plate. Clin Hemorheol Microcirc 2018; 69:437-445. [PMID: 29843229 DOI: 10.3233/ch-189904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The endothelialization of synthetic surfaces applied as cardiovascular implant materials is an important issue to ensure the anti-thrombotic quality of a biomaterial. However, the rapid and constant development of a functionally-confluent endothelial cell monolayer is challenging. In order to investigate the compatibility of potential implant materials with endothelial cells several in vitro studies are performed. Here, glass and tissue culture plates (TCP) are often used as reference materials for in vitro pre-testing. However, a direct comparison of both substrates is lacking.Therefore, a comparison of study results is difficult, since results are often related to various reference materials. In this study, the endothelialization of glass and TCP was investigated in terms of adherence, morphology, integrity, viability and function using human umbilical vein endothelial cells (HUVEC).On both substrates an almost functionally confluent HUVEC monolayer was developed after nine days of cell seeding with clearly visible cell rims, decreased stress fiber formation and a pronounced marginal filament band. The viability of HUVEC was comparable for both substrates nine days after cell seeding with only a few dead cells. According to that, the cell membrane integrity as well as the metabolic activity showed no differences between TCP and glass. However, a significant difference was observed for the secretion of IL-6 and IL-8. The concentration of both cytokines, which are associated with migratory activity, was increased in the supernatant of HUVEC seeded on TCP. This result matches well with the slightly increased number of adherent HUVEC on TCP.In conclusion, these findings indicate that both reference materials are almost comparable and can be used equivalently as control materials in in vitro endothelialization studies.
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Affiliation(s)
- Anne Krüger-Genge
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Christian Schulz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Karl Kratz
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry, University of Potsdam, Potsdam, Germany
| | - Friedrich Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
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Blocki A, Löper F, Chirico N, Neffe AT, Jung F, Stamm C, Lendlein A. Engineering of cell-laden gelatin-based microgels for cell delivery and immobilization in regenerative therapies. Clin Hemorheol Microcirc 2017; 67:251-259. [DOI: 10.3233/ch-179206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Anna Blocki
- Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin and Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Farina Löper
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin and Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Nino Chirico
- Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Axel T. Neffe
- Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin and Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Friedrich Jung
- Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin and Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Christof Stamm
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin and Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Deutsches Herzzentrum Berlin (DHZB), Berlin, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin and Helmholtz-Zentrum Geesthacht, Teltow, Germany
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