1
|
Yoon S, Fuwad A, Jeong S, Cho H, Jeon TJ, Kim SM. Surface Deformation of Biocompatible Materials: Recent Advances in Biological Applications. Biomimetics (Basel) 2024; 9:395. [PMID: 39056836 PMCID: PMC11274418 DOI: 10.3390/biomimetics9070395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/28/2024] Open
Abstract
The surface topography of substrates is a crucial factor that determines the interaction with biological materials in bioengineering research. Therefore, it is important to appropriately modify the surface topography according to the research purpose. Surface topography can be fabricated in various forms, such as wrinkles, creases, and ridges using surface deformation techniques, which can contribute to the performance enhancement of cell chips, organ chips, and biosensors. This review provides a comprehensive overview of the characteristics of soft, hard, and hybrid substrates used in the bioengineering field and the surface deformation techniques applied to the substrates. Furthermore, this review summarizes the cases of cell-based research and other applications, such as biosensor research, that utilize surface deformation techniques. In cell-based research, various studies have reported optimized cell behavior and differentiation through surface deformation, while, in the biosensor and biofilm fields, performance improvement cases due to surface deformation have been reported. Through these studies, we confirm the contribution of surface deformation techniques to the advancement of the bioengineering field. In the future, it is expected that the application of surface deformation techniques to the real-time interaction analysis between biological materials and dynamically deformable substrates will increase the utilization and importance of these techniques in various fields, including cell research and biosensors.
Collapse
Affiliation(s)
- Sunhee Yoon
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
- Industry-Academia Interactive R&E Center for Bioprocess Innovation (BK21), Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Ahmed Fuwad
- Department of Mechanical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (A.F.); (S.J.)
| | - Seorin Jeong
- Department of Mechanical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (A.F.); (S.J.)
| | - Hyeran Cho
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
| | - Tae-Joon Jeon
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
- Industry-Academia Interactive R&E Center for Bioprocess Innovation (BK21), Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
- Biohybrid Systems Research Center, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Sun Min Kim
- Department of Biological Sciences and Bioengineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (S.Y.); (H.C.)
- Department of Mechanical Engineering, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea; (A.F.); (S.J.)
- Biohybrid Systems Research Center, Inha University, 100, Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| |
Collapse
|
2
|
Marcolino LMC, Ambrosio JA, Pinto JG, Ferreira I, Simioni AR, Ferreira-Strixino J. Photodynamic therapy of cationic and anionic BSA-curcumin nanoparticles on amastigotes of Leishmania braziliensis and Leishmania major and Leishmania amazonensis. Photodiagnosis Photodyn Ther 2024; 46:104001. [PMID: 38342387 DOI: 10.1016/j.pdpdt.2024.104001] [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: 10/31/2023] [Revised: 01/18/2024] [Accepted: 02/02/2024] [Indexed: 02/13/2024]
Abstract
Cutaneous leishmaniasis is a neglected disease prevalent in tropical countries, and conventional treatment can cause several serious side effects. Photodynamic therapy (PDT) can be considered a promising treatment alternative, as it is non-invasive therapy that has no side effects and uses accessible and low-cost substances, such as curcumin. This study evaluated the PDT response with cationic and anionic BSA nanoparticles encapsulated with curcumin in macrophages infected with L. braziliensis, L. major, and L. amazonensis. The nanoparticle system was characterized using a steady-state technique, scanning electron microscopy (SEM) study, and its biological activity was evaluated using macrophage cell lines infected with different Leishmania species. All spectroscopy measurements demonstrated that BSA curcumin (BSACur) has good photophysical properties, and confocal microscopy shows that macrophages and protozoa internalized the nanoparticles. The viability test demonstrated that at low concentrations, such as 0.1, 0.7, and 1.0 µmol. L-1, there was a decrease in cell viability after PDT application. Furthermore, a decrease in the number of parasites recovered was observed in the PDT groups. The results allowed us to conclude that curcumin loaded into BSA nanoparticles may have potential application in drug delivery systems for PDT protocols, demonstrating reduced cell viability at lower concentrations than free curcumin.
Collapse
Affiliation(s)
- Luciana Maria Cortez Marcolino
- Photobiology Applied to Health (PhotoBioS Lab) - Research and Development Institute - IPD - Universidade do Vale do Paraíba. Av. Shishima Hifumi, 2911, Urbanova, São José dos Campos, S.P, Brazil
| | - Jessica Ar Ambrosio
- Micro and Nanoparticle Systems Laboratory - Research and Development Institute - IPD - Universidade do Vale do Paraíba. Av. Shishima Hifumi, 2911, Urbanova, São José dos Campos, S.P, Brazil
| | - Juliana Guerra Pinto
- Photobiology Applied to Health (PhotoBioS Lab) - Research and Development Institute - IPD - Universidade do Vale do Paraíba. Av. Shishima Hifumi, 2911, Urbanova, São José dos Campos, S.P, Brazil
| | - Isabelle Ferreira
- Photobiology Applied to Health (PhotoBioS Lab) - Research and Development Institute - IPD - Universidade do Vale do Paraíba. Av. Shishima Hifumi, 2911, Urbanova, São José dos Campos, S.P, Brazil
| | - Andreza R Simioni
- Micro and Nanoparticle Systems Laboratory - Research and Development Institute - IPD - Universidade do Vale do Paraíba. Av. Shishima Hifumi, 2911, Urbanova, São José dos Campos, S.P, Brazil
| | - Juliana Ferreira-Strixino
- Photobiology Applied to Health (PhotoBioS Lab) - Research and Development Institute - IPD - Universidade do Vale do Paraíba. Av. Shishima Hifumi, 2911, Urbanova, São José dos Campos, S.P, Brazil.
| |
Collapse
|
3
|
Kim D, Youn J, Lee J, Kim H, Kim DS. Recent Progress in Fabrication of Electrospun Nanofiber Membranes for Developing Physiological In Vitro Organ/Tissue Models. Macromol Biosci 2023; 23:e2300244. [PMID: 37590903 DOI: 10.1002/mabi.202300244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/13/2023] [Indexed: 08/19/2023]
Abstract
Nanofiber membranes (NFMs), which have an extracellular matrix-mimicking structure and unique physical properties, have garnered great attention as biomimetic materials for developing physiologically relevant in vitro organ/tissue models. Recent progress in NFM fabrication techniques immensely contributes to the development of NFM-based cell culture platforms for constructing physiological organ/tissue models. However, despite the significance of the NFM fabrication technique, an in-depth discussion of the fabrication technique and its future aspect is insufficient. This review provides an overview of the current state-of-the-art of NFM fabrication techniques from electrospinning techniques to postprocessing techniques for the fabrication of various types of NFM-based cell culture platforms. Moreover, the advantages of the NFM-based culture platforms in the construction of organ/tissue models are discussed especially for tissue barrier models, spheroids/organoids, and biomimetic organ/tissue constructs. Finally, the review concludes with perspectives on challenges and future directions for fabrication and utilization of NFMs.
Collapse
Affiliation(s)
- Dohui Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Jaeseung Youn
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Jisang Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Hyeonji Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 37673, Republic of Korea
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk, 37673, Republic of Korea
- Institute for Convergence Research and Education in Advanced Technology, Yonsei University, 50, Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, Republic of Korea
| |
Collapse
|
4
|
Youn J, Rhyou J, Kim D, Lee J, Choi JW, Park TE, Kim DS. Facile and adhesive-free method for bonding nanofiber membrane onto thermoplastic polystyrene substrate to fabricate 3D cell culture platforms. Mater Today Bio 2023; 20:100648. [PMID: 37214546 PMCID: PMC10192924 DOI: 10.1016/j.mtbio.2023.100648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/19/2023] [Accepted: 04/27/2023] [Indexed: 05/24/2023] Open
Abstract
Nanofiber (NF) membranes have been highlighted as functional materials for biomedical applications owing to their high surface-to-volume ratios, high permeabilities, and extracellular matrix-like biomimetic structures. Because many in vitro platforms for biomedical applications are made of thermoplastic polymers (TP), a simple and leak-free method for bonding NF membranes onto TP platforms is essential. Here, we propose a facile but leak-free localized thermal bonding method for integrating 2D or 3D-structured NF membrane onto a TP supporting substrate while preserving the pristine nanofibrous structure of the membrane, based on localized preheating of the substrate. A methodology for determining the optimal preheating temperature was devised based on a numerical simulation model considering the melting temperature of the NF material and was experimentally validated by evaluating bonding stability and durability under cell culture conditions. The thermally-bonded interface between the NF membrane and TP substrate was maintained stably for 3 weeks allowing the successful construction of an intestinal barrier model. The applicability of the localized thermal bonding method was also demonstrated on various combinations of TP materials (e.g., polystyrene and polymethylmethacrylate) and geometries of the supporting substrate, including a culture insert and microfluidic chip. We expect the proposed localized thermal bonding method to contribute toward broadening and realizing the practical applications of functional NF membranes in various biomedical fields.
Collapse
Affiliation(s)
- Jaeseung Youn
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Junyeol Rhyou
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Dohui Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Jisang Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | - Jeong-Won Choi
- Department of Biomedical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Tae-Eun Park
- Department of Biomedical Engineering, College of Information and Biotechnology, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
- Institute for Convergence Research and Education in Advanced Technology, Yonsei University, Seoul, 03722, South Korea
| |
Collapse
|
5
|
Song JY, Lee HS, Kim DY, Yun HJ, Yi CC, Park SM. Fabrication Procedure for a 3D Hollow Nanofibrous Bifurcated-Tubular Scaffold by Conformal Electrospinning. ACS Macro Lett 2023; 12:659-666. [PMID: 37155320 DOI: 10.1021/acsmacrolett.3c00109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Electrospinning has shown great potential for the fabrication of 3D nanofibrous tubular scaffolds for bifurcated vascular grafts. However, fabrication of complex 3D nanofibrous tubular scaffolds with bifurcated or patient-specific shapes remains limited. In this study, a 3D hollow nanofibrous bifurcated-tubular scaffold was fabricated by the uniform and conformal deposition of electrospun nanofibers via conformal electrospinning. By conformal electrospinning, electrospun nanofibers are conformally deposited onto a complex shape, such as the bifurcated region, without large pores or defects. Owing to conformal electrospinning, a corner profile fidelity (FC), a measure of conformal deposition of electrospun nanofibers at the bifurcated region, was increased 4 times at the bifurcation angle (θB) of 60°, and all FC values of the scaffolds reached 100%, regardless of the θB. Furthermore, the thickness of the scaffolds could be controlled by varying the electrospinning time. Leakage-free liquid transfer was successfully achieved owing to the uniform and conformal deposition of electrospun nanofibers. Finally, the cytocompatibility and 3D mesh-based modeling of the scaffolds were demonstrated. Thus, conformal electrospinning can be used to fabricate leakage-free and complex 3D nanofibrous scaffolds for bifurcated vascular grafts.
Collapse
Affiliation(s)
- Jin Yeong Song
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, South Korea
| | - Hyang Seob Lee
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, South Korea
| | - Do Young Kim
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, South Korea
| | - Hye Jin Yun
- Biomedical Research Institute, Pusan National University Hospital, 179 Gudeok-ro, Seo-gu, Busan 49241, South Korea
| | - Changryul Claud Yi
- Biomedical Research Institute, Pusan National University Hospital, 179 Gudeok-ro, Seo-gu, Busan 49241, South Korea
- Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan 49241, South Korea
| | - Sang Min Park
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 46241, South Korea
| |
Collapse
|
6
|
Advances in cell coculture membranes recapitulating in vivo microenvironments. Trends Biotechnol 2023; 41:214-227. [PMID: 36030108 DOI: 10.1016/j.tibtech.2022.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/05/2022] [Accepted: 07/25/2022] [Indexed: 01/24/2023]
Abstract
Porous membranes play a critical role in in vitro heterogeneous cell coculture systems because they recapitulate the in vivo microenvironment to mediate physical and biochemical crosstalk between cells. While the conventionally available Transwell® system has been widely used for heterogeneous cell coculture, there are drawbacks to precise control over cell-cell interactions and separation for implantation. The size and numbers of the pores and the thickness of the porous membranes are crucial in determining the efficiency of paracrine signaling and direct junctions between cocultured cells, and significantly impact on the performance of heterogeneous cell cultures. These opportunities and challenges have motivated the design of advanced coculture platforms through improvement of the structural and functional properties of porous membranes.
Collapse
|
7
|
Kim S, Wan Z, Jeon JS, Kamm RD. Microfluidic vascular models of tumor cell extravasation. Front Oncol 2022; 12:1052192. [PMID: 36439519 PMCID: PMC9698448 DOI: 10.3389/fonc.2022.1052192] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 10/26/2022] [Indexed: 11/13/2022] Open
Abstract
Emerging microfluidic disease models have amply demonstrated their value in many fields of cancer research. These in vitro technologies recapitulate key aspects of metastatic cancer, including the process of tumor cell arrest and extravasation at the site of the metastatic tumor. To date, extensive efforts have been made to capture key features of the microvasculature to reconstitute the pre-metastatic niche and investigate dynamic extravasation behaviors using microfluidic systems. In this mini-review, we highlight recent microfluidic vascular models of tumor cell extravasation and explore how this approach contributes to development of in vitro disease models to enhance understanding of metastasis in vivo.
Collapse
Affiliation(s)
- Seunggyu Kim
- Mechanobiology Lab, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States
- Biomicrofluidics Lab, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Zhengpeng Wan
- Mechanobiology Lab, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Jessie S. Jeon
- Biomicrofluidics Lab, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Roger D. Kamm
- Mechanobiology Lab, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States
| |
Collapse
|
8
|
Iravani S, Varma RS. Advanced Drug Delivery Micro- and Nanosystems for Cardiovascular Diseases. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185843. [PMID: 36144581 PMCID: PMC9506137 DOI: 10.3390/molecules27185843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 08/29/2022] [Accepted: 09/07/2022] [Indexed: 12/03/2022]
Abstract
Advanced drug delivery micro- and nanosystems have been widely explored due to their appealing specificity/selectivity, biodegradability, biocompatibility, and low toxicity. They can be applied for the targeted delivery of pharmaceuticals, with the benefits of good biocompatibility/stability, non-immunogenicity, large surface area, high drug loading capacity, and low leakage of drugs. Cardiovascular diseases, as one of the primary mortalities cause worldwide with significant impacts on the quality of patients’ life, comprise a variety of heart and circulatory system pathologies, such as peripheral vascular diseases, myocardial infarction, heart failure, and coronary artery diseases. Designing novel micro- and nanosystems with suitable targeting properties and smart release behaviors can help circumvent crucial challenges of the tolerability, low stability, high toxicity, and possible side- and off-target effects of conventional drug delivery routes. To overcome different challenging issues, namely physiological barriers, low efficiency of drugs, and possible adverse side effects, various biomaterials-mediated drug delivery systems have been formulated with reduced toxicity, improved pharmacokinetics, high bioavailability, sustained release behavior, and enhanced therapeutic efficacy for targeted therapy of cardiovascular diseases. Despite the existing drug delivery systems encompassing a variety of biomaterials for treating cardiovascular diseases, the number of formulations currently approved for clinical use is limited due to the regulatory and experimental obstacles. Herein, the most recent advancements in drug delivery micro- and nanosystems designed from different biomaterials for the treatment of cardiovascular diseases are deliberated, with a focus on the important challenges and future perspectives.
Collapse
Affiliation(s)
- Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
- Correspondence: (S.I.); (R.S.V.)
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University in Olomouc, Šlechtitelů 27, Olomouc 78371, Czech Republic
- Correspondence: (S.I.); (R.S.V.)
| |
Collapse
|
9
|
Zhang Y, Habibovic P. Delivering Mechanical Stimulation to Cells: State of the Art in Materials and Devices Design. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110267. [PMID: 35385176 DOI: 10.1002/adma.202110267] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Biochemical signals, such as growth factors, cytokines, and transcription factors are known to play a crucial role in regulating a variety of cellular activities as well as maintaining the normal function of different tissues and organs. If the biochemical signals are assumed to be one side of the coin, the other side comprises biophysical cues. There is growing evidence showing that biophysical signals, and in particular mechanical cues, also play an important role in different stages of human life ranging from morphogenesis during embryonic development to maturation and maintenance of tissue and organ function throughout life. In order to investigate how mechanical signals influence cell and tissue function, tremendous efforts have been devoted to fabricating various materials and devices for delivering mechanical stimuli to cells and tissues. Here, an overview of the current state of the art in the design and development of such materials and devices is provided, with a focus on their design principles, and challenges and perspectives for future research directions are highlighted.
Collapse
Affiliation(s)
- Yonggang Zhang
- Department of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Pamela Habibovic
- Department of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| |
Collapse
|
10
|
Youn J, Hong H, Shin W, Kim D, Kim HJ, Kim DS. Thin and stretchable extracellular matrix (ECM) membrane reinforced by nanofiber scaffolds for developing in vitro barrier models. Biofabrication 2022; 14. [DOI: 10.1088/1758-5090/ac4dd7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 01/21/2022] [Indexed: 11/11/2022]
Abstract
Abstract
An extracellular matrix (ECM) membrane made up of ECM hydrogels has great potentials to develop a physiologically relevant organ-on-a-chip because of its biochemical and biophysical similarity to in vivo basement membranes (BMs). However, the limited mechanical stability of the ECM hydrogels makes it difficult to utilize the ECM membrane in long-term and dynamic cell/tissue cultures. This study proposes an ultra-thin but robust and transparent ECM membrane reinforced with silk fibroin (SF)/polycaprolactone (PCL) nanofibers, which is achieved by in situ self-assembly throughout a freestanding SF/PCL nanofiber scaffold. The SF/PCL nanofiber-reinforced ECM (NaRE) membrane shows biophysical characteristics reminiscent of native BMs, including small thickness (< 5 μm), high permeability (< 9 × 10−5 cm s-1), and nanofibrillar architecture (~10 to 100 nm). With the BM-like characteristics, the nanofiber reinforcement ensured that the NaRE membrane stably supported the construction of various types of in vitro barrier models, from epithelial or endothelial barrier models to complex co-culture models, even over two weeks of cell culture periods. Furthermore, the stretchability of the NaRE membrane allowed emulating the native organ-like cyclic stretching motions (10 to 15%) and was demonstrated to manipulate the cell and tissue-level functions of the in vitro barrier model.
Collapse
|
11
|
Youn J, Han H, Park SM, Kim DS. Arterial Internal Elastic Lamina-Inspired Membrane for Providing Biochemical and Structural Cues in Developing Artery-on-a-Chip. ACS Macro Lett 2021; 10:1398-1403. [PMID: 35549015 DOI: 10.1021/acsmacrolett.1c00551] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In vitro artery models constructed on a membrane-based microfluidic chip, called an artery-on-a-chip, have been spotlighted as a powerful platform for studying arterial physiology. However, due to the use of a flat and porous membrane that cannot mimic the in vivo internal elastic lamina (IEL), the physiological similarity in the phenotypes and the arrangements of the endothelial cells (ECs) and aortic smooth muscle cells (AoSMCs) has been limited in the previously developed artery-on-a-chips. Herein, we developed an innovative membrane mimicking the structures of IEL by utilizing electrospun aligned silk fibroin/polycaprolactone nanofiber membranes. An arterial IEL-mimicking (AIM) membrane was about 5 μm thick and composed of orthogonally aligned nanofibers with a diameter of around 400 nm, which were highly comparable to the IEL. Such structural similarity was found to induce the ECs and SMCs to be elongated and orthogonally aligned as in the in vivo artery. In particular, the SMCs cultured on the AIM membrane maintained a healthy state showing increased αSMA mRNA expression, which was easily lost on the conventional membrane. We constructed an AIM membrane-integrated artery-on-a-chip having an orthogonal arrangement of ECs and SMCs, which was desirable but difficult to be realized with the previous artery-on-a-chip.
Collapse
Affiliation(s)
- Jaeseung Youn
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Hyeonseok Han
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea
| | - Sang Min Park
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea.,Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, South Korea.,Institute for Convergence Research and Education in Advanced Technology, Yonsei University, Seoul 03722, South Korea
| |
Collapse
|
12
|
Acik G. Fabrication of polypropylene fibers possessing quaternized ammonium salt based on the combination of CuAAC click chemistry and electrospinning. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
13
|
Lee SJ, Nam Y, Rim YA, Lee K, Ju JH, Kim DS. Perichondrium-inspired permeable nanofibrous tube well promoting differentiation of hiPSC-derived pellet toward hyaline-like cartilage pellet. Biofabrication 2021; 13. [PMID: 34404032 DOI: 10.1088/1758-5090/ac1e76] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 08/17/2021] [Indexed: 01/22/2023]
Abstract
The pellet formation has been regarded as a golden standard forin vitrochondrogenic differentiation. However, a spatially inhomogeneous chondrogenic microenvironment around a pellet resulted from the use of a traditional impermeable narrow tube, such as the conical tube, undermines the differentiation performance and therapeutic potential of differentiated cartilage pellet in defective articular cartilage treatment. To address this drawback, a perichondrium-inspired permeable nanofibrous tube (PINaT) well with a nanofibrous wall permeable to gas and soluble molecules is proposed. The PINaT well was fabricated with a micro deep drawing process where a flat thin nanofibrous membrane was transformed to a 3.5 mm deep tube well with a ∼50µm thick nanofibrous wall. Similar toin vivoperichondrium, the PINaT well was found to allow oxygen and growth factor diffusion required for chondrogenic differentiation across the entire nanofibrous wall. Analyses of gene expressions (COL2A1, COL10A1, ACAN, and SOX9), proteins (type II and X collagen), and glycosaminoglycans contents were conducted to assess the differentiation performance and clinical efficacy of differentiated cartilage pellet. The regulated spatially homogeneous chondrogenic microenvironment around the human induced pluripotent stem cell-derived pellet (3 × 105cells per pellet) in the PINaT well remarkably improved the quality of the differentiated pellet toward a more hyaline-like cartilage pellet. Furthermore, an accelerated chondrogenic differentiation process of the pellet produced by the PINaT well was achieved for 14 days, demonstrating a hyaline cartilage-specific marker similar to the control pellet differentiated for 20 days. Finally, the enhanced clinical efficacy of the hyaline-like cartilage pellet was confirmed using an osteochondral defect rat model, with the repaired tissue resembling hyaline cartilage rather than fibrous cartilage after 8 weeks of regeneration.
Collapse
Affiliation(s)
- Seong Jin Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Yoojun Nam
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, 20 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea.,Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Institute of Medical Science, College of Medicine, The Catholic University of Korea, 20 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
| | - Yeri Alice Rim
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, 20 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea.,Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Institute of Medical Science, College of Medicine, The Catholic University of Korea, 20 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
| | - Kijun Lee
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, 20 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
| | - Ji Hyeon Ju
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, 20 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea.,Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, Institute of Medical Science, College of Medicine, The Catholic University of Korea, 20 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea.,Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea.,Institute for Convergence Research and Education in Advanced Technology, Yonsei University, 50, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| |
Collapse
|
14
|
Liang M, Lei F, Liu Y, Lan D, Huang H, Zhang G, Feng Q, Cao X, Dong H. In Situ Formation of Microgel Array Via Patterned Electrospun Nanofibers Promotes 3D Cell Culture and Drug Testing in a Microphysiological System. ACS APPLIED BIO MATERIALS 2021; 4:6209-6218. [PMID: 35006864 DOI: 10.1021/acsabm.1c00534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A microphysiological system (MPS) is recently emerging as a promising alternative to the classical preclinical models, especially animal testing. A key factor for the construction of MPS is to provide a biomimetic three-dimensional (3D) cellular microenvironment. However, it still remains a challenge to introduce extracellular matrix (ECM)-like biomaterials such as hydrogels and nanofibers in a precise and spatiotemporal manner. Herein, we report a strategy to fabricate a MPS combining both electrospun nanofibers and hydrogels. The in situ formation of microsized hydrogel (microgel) array in MPS is realized by patterning electrospun poly(l-lactic acid) (PLLA)/Ca2+ nanofibers via a solvent-loaded agarose stamp and injecting an alginate solution to trigger the quick ionic cross-linking between alginate and Ca2+ released from patterned nanofibers. The one-on-one integration of electrospun nanofibers and microgels not only provides a 3D cellular microenvironment in designated regions in MPS but also improves the stability of these microenvironments under dynamic culture. In addition, due to the biocompatible properties of an ionic cross-linking reaction, patterned cell array can be achieved simultaneously during the microgel formation process. A breast cancer model is then built in MPS by coculturing human breast cancer cells and human fibroblasts in microgel array, and its application in drug (cisplatin) testing is evaluated. Our data prove that MPS-MA offers a more precise platform for drug testing to evaluate the drug concentration, duration time, cancer microenvironment, etc, mainly due to its successful construction of the biomimetic 3D cellular microenvironment.
Collapse
Affiliation(s)
- Minhua Liang
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China
| | - Fan Lei
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China
| | - Yang Liu
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China
| | - Dongxu Lan
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China
| | - Hanhao Huang
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China
| | - Guoliang Zhang
- National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China.,School of Biomedical Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Qi Feng
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China
| | - Xiaodong Cao
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China.,Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Hua Dong
- Department of Biomedical Engineering, School of Materials Science and Engineering South China University of Technology, Guangzhou 510006, China.,National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510641, China.,Guangdong Province Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou 510641, China
| |
Collapse
|
15
|
Rhyou J, Youn J, Eom S, Kim DS. Facile Fabrication of Electrospun Nanofiber Membrane-Integrated PDMS Microfluidic Chip via Silver Nanowires-Uncured PDMS Adhesive Layer. ACS Macro Lett 2021; 10:965-970. [PMID: 35549208 DOI: 10.1021/acsmacrolett.1c00256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Although direct electrospinning has been frequently utilized to develop a nanofiber membrane-integrated microfluidic chip, the dielectric substrate material retards the deposition of electrospun nanofibers on the substrate, and the rough surface formed by deposited nanofibers hinders the successful sealing. In this study we introduce a facile fabrication process of an electrospun nanofiber membrane-integrated polydimethylsiloxane (PDMS) microfluidic chip, called a NFM-PDMS chip, by applying the functional layer. The functional layer consists of a silver nanowires (AgNWs)-embedded uncured PDMS adhesive layer (SNUP), which not only effectively concentrates the electric field toward the PDMS substrate, but also provides a smooth surface for robust sealing. The AgNWs in the SNUP play a crucial role as a grounded collector and enable approximately 4× faster electrospinning than the conventional method, forming a free-standing nanofiber membrane. The uncured PDMS adhesive layer in the SNUP maintains the smooth surface after electrospinning and allows the rapid and leakage-free bonding of the NFM-PDMS chip using plasma treatment. A practical application of the NFM-PDMS chip is demonstrated by culturing the human keratinocyte cell line, HaCaT cells. The HaCaT cells are well grown on the free-standing nanofiber membrane under dynamic flow conditions, maintaining good viability over 95% for 7 days of culture.
Collapse
Affiliation(s)
- Junyeol Rhyou
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jaeseung Youn
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Seongsu Eom
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Republic of Korea
- Institute for Convergence Research and Education in Advanced Technology, Yonsei University, 50,
Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| |
Collapse
|
16
|
Song JY, Ryu HI, Lee JM, Bae SH, Lee JW, Yi CC, Park SM. Conformal Fabrication of an Electrospun Nanofiber Mat on a 3D Ear Cartilage-Shaped Hydrogel Collector Based on Hydrogel-Assisted Electrospinning. NANOSCALE RESEARCH LETTERS 2021; 16:116. [PMID: 34241736 PMCID: PMC8271053 DOI: 10.1186/s11671-021-03571-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 07/01/2021] [Indexed: 05/31/2023]
Abstract
Electrospinning is a common and versatile process to produce nanofibers and deposit them on a collector as a two-dimensional nanofiber mat or a three-dimensional (3D) macroscopic arrangement. However, 3D electroconductive collectors with complex geometries, including protruded, curved, and recessed regions, generally caused hampering of a conformal deposition and incomplete covering of electrospun nanofibers. In this study, we suggested a conformal fabrication of an electrospun nanofiber mat on a 3D ear cartilage-shaped hydrogel collector based on hydrogel-assisted electrospinning. To relieve the influence of the complex geometries, we flattened the protruded parts of the 3D ear cartilage-shaped hydrogel collector by exploiting the flexibility of the hydrogel. We found that the suggested fabrication technique could significantly decrease an unevenly focused electric field, caused by the complex geometries of the 3D collector, by alleviating the standard deviation by more than 70% through numerical simulation. Furthermore, it was experimentally confirmed that an electrospun nanofiber mat conformally covered the flattened hydrogel collector with a uniform thickness, which was not achieved with the original hydrogel collector. Given that this study established the conformal electrospinning technique on 3D electroconductive collectors, it will contribute to various studies related to electrospinning, including tissue engineering, drug/cell delivery, environmental filter, and clothing.
Collapse
Affiliation(s)
- Jin Yeong Song
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, South Korea
| | - Hyun Il Ryu
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, South Korea
| | - Jeong Myeong Lee
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, South Korea
| | - Seong Hwan Bae
- Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 49241, South Korea
- Biomedical Research Institute, Pusan National University Hospital, 179 Gudeok-ro, Seo-gu, Busan, 49241, South Korea
| | - Jae Woo Lee
- Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 49241, South Korea
| | - Changryul Claud Yi
- Department of Plastic and Reconstructive Surgery, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 49241, South Korea.
- Biomedical Research Institute, Pusan National University Hospital, 179 Gudeok-ro, Seo-gu, Busan, 49241, South Korea.
| | - Sang Min Park
- School of Mechanical Engineering, Pusan National University, 2, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 46241, South Korea.
| |
Collapse
|
17
|
Tasiopoulos CP, Gustafsson L, van der Wijngaart W, Hedhammar M. Fibrillar Nanomembranes of Recombinant Spider Silk Protein Support Cell Co-culture in an In Vitro Blood Vessel Wall Model. ACS Biomater Sci Eng 2021; 7:3332-3339. [PMID: 34169711 PMCID: PMC8290846 DOI: 10.1021/acsbiomaterials.1c00612] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
![]()
Basement membrane
is a thin but dense network of self-assembled
extracellular matrix (ECM) protein fibrils that anchors and physically
separates epithelial/endothelial cells from the underlying connective
tissue. Current replicas of the basement membrane utilize either synthetic
or biological polymers but have not yet recapitulated its geometric
and functional complexity highly enough to yield representative in vitro co-culture tissue models. In an attempt to model
the vessel wall, we seeded endothelial and smooth muscle cells on
either side of 470 ± 110 nm thin, mechanically robust, and nanofibrillar
membranes of recombinant spider silk protein. On the apical side,
a confluent endothelium formed within 4 days, with the ability to
regulate the permeation of representative molecules (3 and 10 kDa
dextran and IgG). On the basolateral side, smooth muscle cells produced
a thicker ECM with enhanced barrier properties compared to conventional
tissue culture inserts. The membranes withstood 520 ± 80 Pa pressure
difference, which is of the same magnitude as capillary blood pressure in vivo. This use of protein nanomembranes with relevant
properties for co-culture opens up for developing advanced in vitro tissue models for drug screening and potent substrates
in organ-on-a-chip systems.
Collapse
Affiliation(s)
- Christos Panagiotis Tasiopoulos
- School of Engineering Sciences in Chemistry, Biotechnology, and Health, Department of Protein Science, AlbaNova University Center, KTH-Royal Institute of Technology, Roslagstullsbacken 21, 114 21 Stockholm, Sweden
| | - Linnea Gustafsson
- School of Electrical Engineering and Computer Science, Division of Micro and Nanosystems, KTH-Royal Institute of Technology, Malvinas väg 10, 114 28 Stockholm, Sweden
| | - Wouter van der Wijngaart
- School of Electrical Engineering and Computer Science, Division of Micro and Nanosystems, KTH-Royal Institute of Technology, Malvinas väg 10, 114 28 Stockholm, Sweden
| | - My Hedhammar
- School of Engineering Sciences in Chemistry, Biotechnology, and Health, Department of Protein Science, AlbaNova University Center, KTH-Royal Institute of Technology, Roslagstullsbacken 21, 114 21 Stockholm, Sweden
| |
Collapse
|
18
|
Jain P, Nishiguchi A, Linz G, Wessling M, Ludwig A, Rossaint R, Möller M, Singh S. Reconstruction of Ultra-thin Alveolar-capillary Basement Membrane Mimics. Adv Biol (Weinh) 2021; 5:e2000427. [PMID: 33987968 DOI: 10.1002/adbi.202000427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 03/19/2021] [Indexed: 12/15/2022]
Abstract
Alveolar-capillary basement membrane (BM) is ultra-thin (<2 µm) extracellular matrix that maintains integral epithelial-endothelial cell layers. In vitro reconstructions of alveolar-capillary barrier supported on synthetic scaffolds closely resembling the fibrous and ultra-thin natural BM are essential in mimicking the lung pathophysiology. Although BM topology and dimensions are well known to significantly influence cellular behavior, conventionally used BM mimics fail to recreate this natural niche. To overcome this, electrospun ultra-thin 2 µm poly(caprolactone) (PCL) nanofibrous mesh is used to establish an alveolar-capillary barrier model of lung endothelial/epithelial cells. Transepithelial electrical resistance (TEER) and permeability studies reveal integral tight junctions and improved mass transport through the highly porous PCL meshes compared to conventional dense membranes with etched pores. The chemotaxis of neutrophils is shown across the barrier in presence of inflammatory response that is naturally impeded in confined regions. Conventional requirement of 3 µm or larger pore size can lead to barrier disruption due to epithelial/endothelial cell invasion. Despite high porosity, the interconnected BM mimic prevents barrier disruption and allows neutrophil transmigration, thereby demonstrating the physiological relevance of the thin nanofibrous meshes. It is envisioned that these bipolar cultured barriers would contribute to an organ-level in vitro model for pathological disease, environmental pollutants, and nanotoxicology.
Collapse
Affiliation(s)
- Puja Jain
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany
| | - Akihiro Nishiguchi
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany.,Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Georg Linz
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany.,Chemical Process Engineering, RWTH Aachen University, Forckenbeckstr. 51, 52056, Aachen, Germany
| | - Matthias Wessling
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany.,Chemical Process Engineering, RWTH Aachen University, Forckenbeckstr. 51, 52056, Aachen, Germany
| | - Andreas Ludwig
- Institute for Molecular Pharmacology, University Hospital RWTH Aachen University, Wendlingweg 2, 52074, Aachen, Germany
| | - Rolf Rossaint
- Department of Anesthesiology, University Hospital RWTH Aachen University, Pauwelsstr. 30, 52074, Aachen, Germany
| | - Martin Möller
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany
| | - Smriti Singh
- DWI-Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52056, Aachen, Germany.,Max Planck Institute for Medical Research (MPImF), Jahnstrasse 29, 69120, Heidelberg, Germany
| |
Collapse
|
19
|
Bioengineered in vitro models of leukocyte-vascular interactions. Biochem Soc Trans 2021; 49:693-704. [PMID: 33843967 DOI: 10.1042/bst20200620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/12/2021] [Accepted: 03/18/2021] [Indexed: 01/13/2023]
Abstract
Leukocytes continuously circulate our body through the blood and lymphatic vessels. To survey invaders or abnormalities and defend our body against them, blood-circulating leukocytes migrate from the blood vessels into the interstitial tissue space (leukocyte extravasation) and exit the interstitial tissue space through draining lymphatic vessels (leukocyte intravasation). In the process of leukocyte trafficking, leukocytes recognize and respond to multiple biophysical and biochemical cues in these vascular microenvironments to determine adequate migration and adhesion pathways. As leukocyte trafficking is an essential part of the immune system and is involved in numerous immune diseases and related immunotherapies, researchers have attempted to identify the key biophysical and biochemical factors that might be responsible for leukocyte migration, adhesion, and trafficking. Although intravital live imaging of in vivo animal models has been remarkably advanced and utilized, bioengineered in vitro models that recapitulate complicated in vivo vascular structure and microenvironments are needed to better understand leukocyte trafficking since these in vitro models better allow for spatiotemporal analyses of leukocyte behaviors, decoupling of interdependent biological factors, better controlling of experimental parameters, reproducible experiments, and quantitative cellular analyses. This review discusses bioengineered in vitro model systems that are developed to study leukocyte interactions with complex microenvironments of blood and lymphatic vessels. This review focuses on the emerging concepts and methods in generating relevant biophysical and biochemical cues. Finally, the review concludes with expert perspectives on the future research directions for investigating leukocyte and vascular biology using the in vitro models.
Collapse
|
20
|
Kim S, Park J, Kim J, Jeon JS. Microfluidic Tumor Vasculature Model to Recapitulate an Endothelial Immune Barrier Expressing FasL. ACS Biomater Sci Eng 2021; 7:1230-1241. [PMID: 33586426 DOI: 10.1021/acsbiomaterials.0c01542] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fas ligand (FasL, CD178) is known to bind to its receptor (Fas, CD95) and mediate cellular apoptosis to maintain immune homeostasis. Recently, it has been recognized that tumor cells and their microenvironments allow an adjacent vascular endothelium to express the FasL on its cell membrane, utilizing the endothelium as an immune barrier to kill antitumor cytotoxic T cells. Here, a microfluidic tumor vasculature model is presented, which enables the recapitulation of an endothelial immune barrier expressing FasL. The in vitro three-dimensional model replicates enhanced endothelial FasL expression under the hypoxic tumor microenvironment. Apoptosis rates of FasL-susceptible target cells are augmented under the microenvironment with upregulated FasL but are consequently abrogated by administrations of pharmacological inhibitions, FasL-Fas blockades. The microfluidic system suggests its promising applications in elucidating complex immunosuppressive mechanisms of the tumor microenvironment and screening of cell-mediated immunotherapies as a preclinical model.
Collapse
Affiliation(s)
- Seunggyu Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Joonha Park
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jeongsik Kim
- National Creative Research Initiatives Center, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jessie S Jeon
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.,KAIST Institute for Health Science and Technology, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| |
Collapse
|
21
|
Ryu HI, Koo MS, Kim S, Kim S, Park YA, Park SM. Uniform-thickness electrospun nanofiber mat production system based on real-time thickness measurement. Sci Rep 2020; 10:20847. [PMID: 33257811 PMCID: PMC7705742 DOI: 10.1038/s41598-020-77985-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/11/2020] [Indexed: 11/09/2022] Open
Abstract
Electrospinning is a simple versatile process used to produce nanofibers and collect them as a nanofiber mat. However, due to bending instability, electrospinning often produces a nanofiber mat with non-uniform mat thickness. In this study, we developed a uniform-thickness electrospun nanofiber mat (UTEN) production system with a movable collector based on real-time thickness measurement and thickness feedback control. This system is compatible with a collector with void regions such as a mesh-type collector, two-parallel-metal-plate collector, and ring-type collector, which facilitates the measurement of light transmittance across the produced nanofiber mat during electrospinning. A real-time measurement system was developed to measure light transmittance and convert it to the thickness of the nanofiber mat in real time using the Beer-Lambert law. Thickness feedback control was achieved by repeating the following sequences: (1) finding an optimal position of the movable collector based on the measured thickness of the nanofiber mat, (2) shifting the collector to an optimal position, and (3) performing electrospinning for a given time step. We found that the suggested thickness feedback control algorithm could significantly decrease the non-uniformity of the nanofiber mat by reducing the standard deviation by more than 8 and 3 times for the numerical simulation and experiments, respectively, when compared with the conventional electrospinning. As a pioneering research, this study will contribute to the development of an electrospinning system to produce robust and reliable nanofiber mats in many research and industrial fields such as biomedicine, environment, and energy.
Collapse
Affiliation(s)
- Hyun Il Ryu
- School of Mechanical Engineering, Pusan National University, Busan, 46241, South Korea
| | - Min Seok Koo
- School of Mechanical Engineering, Pusan National University, Busan, 46241, South Korea
| | - Seokjun Kim
- School of Mechanical Engineering, Pusan National University, Busan, 46241, South Korea
| | - Songkil Kim
- School of Mechanical Engineering, Pusan National University, Busan, 46241, South Korea
| | - Young-Ah Park
- Division of Cardiology, Inje University, Busan Paik Hospital, Busan, 47392, South Korea.
| | - Sang Min Park
- School of Mechanical Engineering, Pusan National University, Busan, 46241, South Korea.
| |
Collapse
|
22
|
Eom S, Park SM, Hong H, Kwon J, Oh SR, Kim J, Kim DS. Hydrogel-Assisted Electrospinning for Fabrication of a 3D Complex Tailored Nanofiber Macrostructure. ACS APPLIED MATERIALS & INTERFACES 2020; 12:51212-51224. [PMID: 33153261 DOI: 10.1021/acsami.0c14438] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Electrospinning has shown great potential in tissue engineering and regenerative medicine due to a high surface-area-to-volume ratio and an extracellular matrix-mimicking structure of electrospun nanofibers, but the fabrication of a complex three-dimensional (3D) macroscopic configuration with electrospun nanofibers remains challenging. In the present study, we developed a novel hydrogel-assisted electrospinning process (GelES) to fabricate a 3D nanofiber macrostructure with a 3D complex but tailored configuration by utilizing a 3D hydrogel structure as a grounded collector instead of a metal collector in conventional electrospinning. The 3D hydrogel collector was discovered to effectively concentrate the electric field toward itself similar to the metal collector, thereby depositing electrospun nanofibers directly on its exterior surface. Synergistic advantages of the hydrogel (e.g., biocompatibility and thermally reversible sol-gel transition) and the 3D nanofiber macrostructure (e.g., mechanical robustness and high permeability) provided by the GelES process were demonstrated in a highly permeable tubular tissue graft and a robust drug- or cell-encapsulation construct. GelES is expected to broaden potential applications of electrospinning to not only provide in vivo drug/cell delivery and tissue regeneration but also an in vitro drug testing platform by increasing the degree of freedom in the configuration of the 3D nanofiber macrostructure.
Collapse
Affiliation(s)
- Seongsu Eom
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Sang Min Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Hyeonjun Hong
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Jinju Kwon
- Department of Public Health Science, Graduate School, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Sang-Rok Oh
- Robotics and Media Research Institute, Korea Institute of Science and Technology, 14 Hwarang-ro, Seongbuk-gu, Seoul 02792, South Korea
| | - Junesun Kim
- Department of Public Health Science, Graduate School, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
- Department of Physical Therapy, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
- Department of Health and Environmental Science, College of Health Science, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| |
Collapse
|
23
|
Mazzilli MRF, Ambrósio JAR, da Silva Godoy D, da Silva Abreu A, Carvalho JA, Junior MB, Simioni AR. Polyelectrolytic BSA nanoparticles containing silicon dihydroxide phthalocyanine as a promising candidate for drug delivery systems for anticancer photodynamic therapy. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1457-1474. [PMID: 32326844 DOI: 10.1080/09205063.2020.1760702] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Recently several scientific-technological advances in the health area have developed. Among them, we can highlight research addressing nanoscience and nanotechnology focusing on the development of formulations for the cancer treatment. This work describes the synthesis and characterization of bovine serum albumin (BSA) polyelectrolytic nanoparticles for controlled release using silicon dihydroxide phthalocyanine [SiPc (OH)2] as a photosensitizer model for application in Photodynamic Therapy (PDT). BSA nanoparticles were prepared by the one-step desolvation process and the nanoparticulate system was coated with polyelectrolytes using poly-(4-styrene sulfonate - PSS) as a strong polyanion and polyallylamine hydrochloride (PAH) as a weak polycation by the technique self-assembling layer-by-layer (LbL). The formulation was characterized and available in cellular culture. The profile of drug release was investigated and compared to that of free [SiPc (OH)2]. The nanoparticles have a mean diameter of 226.9 nm, a narrow size distribution with polydispersive index of 0.153, smooth surface and spherical shape. [SiPc(OH)2] loaded nanoparticles maintain its photophysical behaviour after encapsulation. The polyelectrolytic nanoparticles improved efficiency in release and photocytotoxicity assay when compared to pure drug. The results demonstrate that photosensitizer adsorption on BSA nanoparticles together with biopolymer layer-by-layer assembly provides a way to manufacture biocompatible nanostructured materials that are intended for use as biomaterials for Photodynamic Therapy applications.
Collapse
Affiliation(s)
- Mariana Ribeiro Farah Mazzilli
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| | | | - Daniele da Silva Godoy
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| | - Alexandro da Silva Abreu
- Departament of Chemistry, Center of Nanotechnology and Tissue Engineering- Photobiology and Photomedicine (CNET), University of São Paulo, Ribeirão Preto-SP, Brazil
| | - Janicy Arantes Carvalho
- Departament of Chemistry, Center of Nanotechnology and Tissue Engineering- Photobiology and Photomedicine (CNET), University of São Paulo, Ribeirão Preto-SP, Brazil
| | - Milton Beltrame Junior
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| | - Andreza Ribeiro Simioni
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, São José dos Campos, Brazil
| |
Collapse
|
24
|
Shende P, Patil A, Prabhakar B. Layer-by-layer technique for enhancing physicochemical properties of actives. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
25
|
Yu C, Xing M, Wang L, Guan G. Effects of aligned electrospun fibers with different diameters on hemocompatibility, cell behaviors and inflammation in vitro. Biomed Mater 2020; 15:035005. [DOI: 10.1088/1748-605x/ab673c] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
26
|
Wang Z, Liu C, Zhu D, Gu X, Xu Y, Qin Q, Dong N, Zhang S, Wang J. Untangling the co-effects of oriented nanotopography and sustained anticoagulation in a biomimetic intima on neovessel remodeling. Biomaterials 2020; 231:119654. [DOI: 10.1016/j.biomaterials.2019.119654] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 12/31/2022]
|
27
|
On the Nanoscale Mapping of the Mechanical and Piezoelectric Properties of Poly (L-Lactic Acid) Electrospun Nanofibers. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10020652] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The effect of the post-annealing process on different properties of poly (L-lactic acid) (PLLA) nanofibers has been investigated in view of their use in energy-harvesting devices. Polymeric PLLA nanofibers were prepared by using electrospinning and then were thermally treated above their glass transition. A detailed comparison between as-spun (amorphous) and annealed (semi-crystalline) samples was performed in terms of the crystallinity, morphology and mechanical as well as piezoelectric properties using a multi-technique approach combining DSC, XRD, FTIR, and AFM measurements. A significant increase in the crystallinity of PLLA nanofibers has been observed after the post-annealing process, together with a major improvement of the mechanical and piezoelectric properties.
Collapse
|
28
|
Park BU, Park SM, Lee KP, Lee SJ, Nam YE, Park HS, Eom S, Lim JO, Kim DS, Kim HK. Collagen immobilization on ultra-thin nanofiber membrane to promote in vitro endothelial monolayer formation. J Tissue Eng 2019; 10:2041731419887833. [PMID: 31762986 PMCID: PMC6856979 DOI: 10.1177/2041731419887833] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 10/21/2019] [Indexed: 12/31/2022] Open
Abstract
The endothelialization on the poly (ε-caprolactone) nanofiber has been limited due to its low hydrophilicity. The aim of this study was to immobilize collagen on an ultra-thin poly (ε-caprolactone) nanofiber membrane without altering the nanofiber structure and maintaining the endothelial cell homeostasis on it. We immobilized collagen on the poly (ε-caprolactone) nanofiber using hydrolysis by NaOH treatment and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/sulfo-N-hydroxysulfosuccinimide reaction as a cost-effective and stable approach. NaOH was first applied to render the poly (ε-caprolactone) nanofiber hydrophilic. Subsequently, collagen was immobilized on the surface of the poly (ε-caprolactone) nanofibers using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/sulfo-N-hydroxysulfosuccinimide. Scanning electron microscopy, Fourier transform infrared spectroscopy, transmission electron microscopy, and fluorescence microscopy were used to verify stable collagen immobilization on the surface of the poly (ε-caprolactone) nanofibers and the maintenance of the original structure of poly (ε-caprolactone) nanofibers. Furthermore, human endothelial cells were cultured on the collagen-immobilized poly (ε-caprolactone) nanofiber membrane and expressed tight junction proteins with the increase in transendothelial electrical resistance, which demonstrated the maintenance of the endothelial cell homeostasis on the collagen-immobilized-poly (ε-caprolactone) nanofiber membrane. Thus, we expected that this process would be promising for maintaining cell homeostasis on the ultra-thin poly (ε-caprolactone) nanofiber scaffolds.
Collapse
Affiliation(s)
- Byeong-Ung Park
- Bio-Medical Institute, Kyungpook National University Hospital (KNUH), Daegu, South Korea.,Department of Ophthalmology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Sang Min Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea.,School of Mechanical Engineering, Pusan National University, Busan, South Korea
| | - Kyoung-Pil Lee
- Bio-Medical Institute, Kyungpook National University Hospital (KNUH), Daegu, South Korea.,Department of Ophthalmology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Seong Jin Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Yu Eun Nam
- Bio-Medical Institute, Kyungpook National University Hospital (KNUH), Daegu, South Korea.,Department of Ophthalmology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Han Sang Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Seongsu Eom
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Jeong Ok Lim
- Biomedical Research Institute, Joint Institute for Regenerative Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea
| | - Hong Kyun Kim
- Bio-Medical Institute, Kyungpook National University Hospital (KNUH), Daegu, South Korea.,Department of Ophthalmology, School of Medicine, Kyungpook National University, Daegu, South Korea
| |
Collapse
|
29
|
Ruano G, Alemán C, Torras J. Study on the control of porosity in films of polythiophene derivatives. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
30
|
Kim D, Eom S, Park SM, Hong H, Kim DS. A collagen gel-coated, aligned nanofiber membrane for enhanced endothelial barrier function. Sci Rep 2019; 9:14915. [PMID: 31624315 PMCID: PMC6797789 DOI: 10.1038/s41598-019-51560-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 10/02/2019] [Indexed: 12/16/2022] Open
Abstract
Herein, a collagen gel-coated and aligned nanofiber membrane named Col-ANM is developed, which remarkably improves endothelial barrier function by providing biochemical and topographical cues simultaneously. Col-ANM is fabricated by collagen gel coating process on an aligned polycaprolactone (PCL) nanofiber membrane, which is obtained by a simple electrospinning process adopting a parallel electrode collector. Human umbilical vein endothelial cells (HUVECs) cultured on Col-ANM exhibit remarkably enhanced endothelial barrier function with high expression levels of intercellular junction proteins of ZO-1 and VE-cadherin, a high TEER, and a cellular permeability compared with the artificial porous membranes in commercial cell culture well inserts. The enhanced endothelial barrier function is conjectured to be attributed to the synergistic effects of topographical and biochemical cues provided by the aligned PCL nanofibers and collagen gel in the Col-ANM, respectively. Finally, the reactive oxygen species is applied to the HUVEC monolayer formed on the Col-ANM to destroy the tight junctions between HUVECs. The destruction of the tight junctions is demonstrated by the decreased TEER value over time. Results indicate the potential of Col-ANM in modeling endothelial barrier dysfunction-related diseases.
Collapse
Affiliation(s)
- Dohui Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, Gyeongbuk, 37673, South Korea
| | - Seongsu Eom
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, Gyeongbuk, 37673, South Korea
| | - Sang Min Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, Gyeongbuk, 37673, South Korea
- Department of Mechanical Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Busan, 46241, South Korea
| | - Hyeonjun Hong
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, Gyeongbuk, 37673, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, Gyeongbuk, 37673, South Korea.
| |
Collapse
|
31
|
Yang C, Zhao C, Wang X, Shi M, Zhu Y, Jing L, Wu C, Chang J. Stimulation of osteogenesis and angiogenesis by micro/nano hierarchical hydroxyapatite via macrophage immunomodulation. NANOSCALE 2019; 11:17699-17708. [PMID: 31545331 DOI: 10.1039/c9nr05730g] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Biomaterial topography-based strategies are regarded as an effective way to regulate the osteoimmune environment which plays an indispensable role in the bone regeneration process. The rapid development of manufacture techniques makes it possible to investigate the cell-topography interactions by preparing various micro and nano-topographical surfaces on biomaterials. Still, it is a challenge to prepare well-defined micro/nano hierarchical structures of bioceramics due to the inherent brittleness of ceramic materials. Also, the correlation between osteoimmunomodulation initiated by micro/nano hierarchical topographies and the tissue regeneration outcomes is unclear. In this study, we prepared well-defined micro/nano hierarchical structures on hydroxyapatite (HA) bioceramics through the combination of the photolithography and hydrothermal techniques. Three different microscale circular patterns (4 μm, 12 μm and 36 μm) and nanotopographies (nanoneedle, nanosheet and nanorod) were fabricated by changing the size of the mask and the condition of the hydrothermal reaction. The macrophage responses on the nanoneedle structures with different micropatterns were investigated and the micro/nano hierarchical structures with appropriate pattern sizes could either promote or alleviate the macrophage polarization, which further affected the outcomes of the osteogenic differentiation of human bone marrow stromal cells (hBMSCs) and angiogenic activity of human umbilical vein endothelial cells (HUVECs). Our study demonstrated that osteoimmunomodulation could be manipulated via tuning the micro/nano hierarchical structures, which could lead to a new strategy for the development of bone biomaterials with favorable osteoimmunomodulatory properties.
Collapse
Affiliation(s)
- Chen Yang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Park SM, Lee KP, Huh MI, Eom S, Park BU, Kim KH, Park DH, Kim DS, Kim HK. Development of an in vitro 3D choroidal neovascularization model using chemically induced hypoxia through an ultra-thin, free-standing nanofiber membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109964. [PMID: 31499990 DOI: 10.1016/j.msec.2019.109964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 12/18/2022]
Abstract
Choroidal neovascularization (CNV) is the pathological growth of new blood vessels in the sub-retinal pigment epithelial (RPE) space from the choroid through a break in the Bruch's membrane (BM). Despite its importance in studying biological processes and drug discovery, the development of an in vitro CNV model that achieves the physiological structures of native RPE-BM-choroidal capillaries (CC) is still challenging. Here, we develop a novel 3D RPE-BM-CC complex biomimetic system on an ultra-thin, free-standing nanofiber membrane. The thickness of the pristine nanofiber membrane is 2.17 ± 0.81 μm, and the Matrigel-coated nanofiber membrane attains a permeability coefficient of 2.95 ± 0.25 × 10-6 cm/s by 40 kDa FITC-dextran, which is similar to the physiological value of the native BM. On the in vitro 3D RPE-BM-CC complex system, we demonstrate endothelial cell invasion across the 3D RPE-BM-CC complex and the mechanism of the invasion by imposing a hypoxic condition, which is thought to be the major pathological cause of CNV. Furthermore, alleviation of the invasion is achieved by treating with chrysin and anti-VEGF antibody. Thus, the in vitro 3D RPE-BM-CC complex biomimetic system can recapitulate essential features of the pathophysiological environment and be employed for the screening of drug candidates to reduce the number of costly and time-consuming in vivo tests or clinical trials.
Collapse
Affiliation(s)
- Sang Min Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Kyoung-Pil Lee
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Man-Il Huh
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Seongsu Eom
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Byeong-Ung Park
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Ki Hean Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Dong Ho Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea.
| | - Hong Kyun Kim
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea.
| |
Collapse
|
33
|
Zhao D, Zhou R, Sun J, Li H, Jin Y. Experimental study of polymeric stent fabrication using homemade 3D printing system. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25091] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Danyang Zhao
- Department of Mechanical EngineeringDalian University of Technology Dalian Liaoning 116023 China
| | - Ruiqi Zhou
- Department of Mechanical EngineeringDalian University of Technology Dalian Liaoning 116023 China
| | - Jianxing Sun
- Department of Mechanical Engineering and Materials ScienceWashington University in Saint Louis St. Louis Missouri 63130
| | - Hongxia Li
- Department of Mechanical EngineeringDalian University of Technology Dalian Liaoning 116023 China
| | - Yifei Jin
- Department of Mechanical and Aerospace EngineeringUniversity of Florida Gainesville Florida 32611
| |
Collapse
|