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Hirotani T, Nagase K. Temperature-modulated separation of vascular cells using thermoresponsive-anionic block copolymer-modified glass. Regen Ther 2024; 27:259-267. [PMID: 38601885 PMCID: PMC11004074 DOI: 10.1016/j.reth.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/26/2024] [Accepted: 03/09/2024] [Indexed: 04/12/2024] Open
Abstract
Introduction Vascular tissue engineering is a key technology in the field of regenerative medicine. In tissue engineering, the separation of vascular cells without cell modification is required, as cell modifications affect the intrinsic properties of the cells. In this study, we have developed an effective method for separating vascular cells without cell modification, using a thermoresponsive anionic block copolymer. Methods A thermoresponsive anionic block copolymer, poly(acrylic acid)-b-poly(N-isopropylacryl-amide) (PAAc-b-PNIPAAm), with various PNIPAAm segment lengths, was prepared in two steps: atom transfer radical polymerization and subsequent deprotection. Normal human umbilical vein endothelial cells (HUVECs), normal human dermal fibroblasts, and human aortic smooth muscle cells (SMCs) were seeded onto the prepared thermoresponsive anionic block copolymer brush-modified glass. The adhesion behavior of cells on the copolymer brush was observed at 37 °C and 20 °C. Results A thermoresponsive anionic block copolymer, poly(acrylic acid)-b-poly(N-isopropylacrylamide) (PAAc-b-PNIPAAm), with various PNIPAAm segment lengths was prepared. The prepared copolymer-modified glass exhibited anionic properties attributed to the bottom PAAc segment of the copolymer brush. On the PAAc-b-PNIPAAm, which had a moderate PNIPAAm length, a high adhesion ratio of HUVECs and low adhesion ratio of SMCs were observed at 37 °C. By reducing temperature from 37 °C to 20 °C, the adhered HUVECs were detached, whereas the SMCs maintained adhesion, leading to the recovery of purified HUVECs by changing the temperature. Conclusions The prepared thermoresponsive anionic copolymer-modified glass could be used to separate HUVECs and SMCs by changing the temperature without modifying the cell surface. Therefore, the developed cell separation method will be useful for vascular tissue engineering.
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Affiliation(s)
- Tadashi Hirotani
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
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Nagase K. Bioanalytical technologies using temperature-responsive polymers. ANAL SCI 2024; 40:827-841. [PMID: 38584205 PMCID: PMC11035477 DOI: 10.1007/s44211-024-00545-3] [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: 12/27/2023] [Accepted: 02/24/2024] [Indexed: 04/09/2024]
Abstract
In recent decades, various bioanalytical technologies have been investigated for appropriate medical treatment and effective therapy. Temperature-responsive chromatography is a promising bioanalytical technology owing to its functional properties. Temperature-responsive chromatography uses a poly(N-isopropylacrylamide)(PNIPAAm) modified stationary phase as the column packing material. The hydrophobic interactions between PNIPAAm and the analyte could be modulated by changing the column temperature because of the temperature-responsive hydrophobicity of PNIPAAm. Thus, the chromatography system does not require organic solvents in the mobile phase, making it suitable for therapeutic drug monitoring in medical settings such as hospitals. This review summarizes recent developments in temperature-responsive chromatography systems for therapeutic drug monitoring applications. In addition, separation methods for antibody drugs using PNIPAAm are also summarized because these methods apply to the therapeutic drug monitoring of biopharmaceutics. The temperature-responsive chromatography systems can also be utilized for clinical diagnosis, as they can assess multiple medicines simultaneously. This highlights the significant potential of temperature-responsive chromatography in medicine and healthcare.
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Affiliation(s)
- Kenichi Nagase
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
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Hebel D, Schönherr H. Mild Quantitative One Step Removal of Macrophages from Cocultures with Human Umbilical Vein Endothelial Cells Using Thermoresponsive Poly(Di(Ethylene Glycol)Methyl Ether Methacrylate) Brushes. Macromol Biosci 2024; 24:e2300408. [PMID: 37916483 DOI: 10.1002/mabi.202300408] [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: 09/08/2023] [Revised: 10/24/2023] [Indexed: 11/03/2023]
Abstract
The authors report on a mild, label-free, and fast method for the separation of human umbilical vein endothelial cells (HUVEC), which are relevant cells, whose use is not limited to studies of endothelial dysfunction, from cocultures with macrophages to afford HUVEC in ≈100% purity. Poly(di(ethylene glycol)methyl ether methacrylate) (PDEGMA) brushes with a dry thickness of (5 ± 1) nm afford the highly effective one-step separation by selective HUVEC detachment, which is based on the brushes' thermoresponsive behavior. Below the thermal transition at 32 °C the brushes swells and desorbs attached proteins, resulting in markedly decreased cell adhesion. Specifically, HUVEC and macrophages, which are differentiated from THP-1 monocytes, are seeded and attached to PDEGMA brushes at 37°C. After decreasing the temperature to 22°C, HUVEC shows a decrease in their cell area, while the macrophages are not markedly affected by the temperature change. After mild flushing with a cell culture medium, the HUVEC can be released from the surface and reseeded again with ≈100% purity on a new surface. With this selective cell separation and removal method, it is possible to separate and thereby purify HUVEC from macrophages without the use of any releasing reagent or expensive labels, such as antibodies.
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Affiliation(s)
- Diana Hebel
- Department of Chemistry and Biology, University of Siegen, Physical Chemistry I & Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
| | - Holger Schönherr
- Department of Chemistry and Biology, University of Siegen, Physical Chemistry I & Research Center of Micro and Nanochemistry and (Bio)Technology (Cµ), Adolf-Reichwein-Str. 2, 57076, Siegen, Germany
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Nagase K, Wakayama H, Matsuda J, Kojima N, Kanazawa H. Thermoresponsive mixed polymer brush to effectively control the adhesion and separation of stem cells by altering temperature. Mater Today Bio 2023; 20:100627. [PMID: 37122838 PMCID: PMC10130502 DOI: 10.1016/j.mtbio.2023.100627] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 05/02/2023] Open
Abstract
During the last few decades, thermoresponsive materials for modulating cell adhesion have been investigated for the application of tissue engineering. In this study, we developed thermoresponsive mixed polymer brushes consisting of poly(N-isopropylacrylamide) (PNIPAAm) and poly(N,N-dimethylaminopropylacrylamide) (PDMAPAAm). The mixed polymer brushes were prepared on a glass substrate via the reversible addition-fragmentation chain transfer polymerization of DMAPAAm and subsequent atom transfer radical polymerization of NIPAAm. The mixed polymer brushes grafted to glass exhibited increased cationic properties by increasing the grafted PDMAPAAm length. The shrinking and extension of PNIPAAm exposed and concealed PDMAPAAm, respectively, indicating that the surface cationic properties can be controlled by changing the temperature. At 37 °C, the prepared mixed polymer brushes enhanced cell adhesion through their electrostatic interactions with cells. They also exhibited various thermoresponsive adhesion and detachment properties using various types of cells, such as mesenchymal stem cells. Temperature-controlled cell adhesion and detachment behavior differed between cell types. Using the prepared mixed polymer brush, we separated MSCs from adipocytes and HeLa cells by simply changing the temperature. Thus, the thermoresponsive mixed polymer brushes may be used to separate mesenchymal stem cells from their differentiated or contaminant cells by altering the temperature.
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A thermoresponsive cationic block copolymer brush-grafted silica bead interface for temperature-modulated separation of adipose-derived stem cells. Colloids Surf B Biointerfaces 2022; 220:112928. [DOI: 10.1016/j.colsurfb.2022.112928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
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Nagase K, Kojima N, Goto M, Akaike T, Kanazawa H. Thermoresponsive block copolymer brush for temperature-modulated hepatocyte separation. J Mater Chem B 2022; 10:8629-8641. [PMID: 35972447 DOI: 10.1039/d2tb01384c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Hepatic tissue engineering may be an effective approach for the treatment of liver disease; however, its practical application requires hepatic cell separation technologies that do not involve cell surface modification and maintain cell activity. In this study, we developed hepatocyte cell separation materials using a thermoresponsive polymer and a polymer with high affinity to hepatocytes. A block copolymer of poly(N-p-vinylbenzyl-O-β-D-galactopyranosyl-(1→4)-D-gluconamide) (PVLA) and poly(N-isopropylacrylamide) (PNIPAAm) [PVLA-b-PNIPAAm] was prepared through two steps of atom transfer radical polymerization. On the prepared PVLA-b-PNIPAAm brush, HepG2 cells (model hepatocytes) adhered at 37 °C and detached at 20 °C, attributed to the temperature-modulated affinity between PVLA and HepG2. Cells from the immortalized human hepatic stellate cell line (TWNT-1) did not adhere to the copolymer brush, and RAW264.7 cells (mouse macrophage; model Kupffer cells) adhered to the copolymer brush, regardless of temperature. Using the difference in cell adhesion properties on the copolymer brush, temperature-modulated cell separation was successfully demonstrated. A mixture of HepG2, RAW264.7, and TWNT-1 cells was seeded on the copolymer brush at 37 °C for adherence. By reducing the temperature to 20 °C, adhered HepG2 cells were selectively recovered with a purity of approximately 85% and normal activity. In addition, induced pluripotent stem (iPS) cell-derived hepatocytes adhered on the PVLA-b-PNIPAAm brush at 37 °C and detached from the copolymer brush at 20 °C, whereas the undifferentiated iPS cells did not adhere, indicating that the prepared PVLA-b-PNIPAAm brush could be utilized to separate hepatocyte differentiated and undifferentiated cells. These results indicated that the newly developed PVLA-b-PNIPAAm brush can separate hepatic cells from contaminant cells by temperature modulation, without affecting cell activity or modifying the cell surface. Thus, the copolymer brush is expected to be a useful separation tool for cell therapy and tissue engineering using hepatocytes.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Naoto Kojima
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Mitsuaki Goto
- Biomaterials Center for Regenerative Medical Engineering, Foundation for Advancement of International Science, 24-16 Kasuga, 3-chome, Tsukuba, Ibaraki 305-0821, Japan
| | - Toshihiro Akaike
- Biomaterials Center for Regenerative Medical Engineering, Foundation for Advancement of International Science, 24-16 Kasuga, 3-chome, Tsukuba, Ibaraki 305-0821, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
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Dutta S, Shreyash N, Satapathy BK, Saha S. Advances in design of polymer brush functionalized inorganic nanomaterials and their applications in biomedical arena. WIRES NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 15:e1861. [PMID: 36284373 DOI: 10.1002/wnan.1861] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/23/2022] [Accepted: 09/12/2022] [Indexed: 02/01/2023]
Abstract
Grafting of polymer brush (assembly of polymer chains tethered to the substrate by one end) is emerging as one of the most viable approach to alter the surface of inorganic nanomaterials. Inorganic nanomaterials despite their intrinsic functional superiority, their applications remain restricted due to their incompatibility with organic or biological moieties vis-à-vis agglomeration issues. To overcome such a shortcoming, polymer brush modified surfaces of inorganic nanomaterials have lately proved to be of immense potential. For example, polymer brush-modified inorganic nanomaterials can act as efficient substrates/platforms in biomedical applications, ranging from drug-delivery to protein-array due to their integrated advantages such as amphiphilicity, stimuli responsiveness, enhanced biocompatibility, and so on. In this review, the current state of the art related to polymer brush-modified inorganic nanomaterials focusing, not only, on their synthetic strategies and applications in biomedical field but also the architectural influence of polymer brushes on the responsiveness properties of modified nanomaterials have comprehensively been discussed and its associated future perspective is also presented. This article is categorized under: Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery > Emerging Technologies Nanotechnology Approaches to Biology > Nanoscale Systems in Biology.
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Affiliation(s)
- Soumyadip Dutta
- Department of Materials Science and Engineering Indian Institute of Technology Delhi Delhi India
| | - Nehil Shreyash
- Rajiv Gandhi Institute of Petroleum Technology Jais Uttar Pradesh India
| | - Bhabani Kumar Satapathy
- Department of Materials Science and Engineering Indian Institute of Technology Delhi Delhi India
| | - Sampa Saha
- Department of Materials Science and Engineering Indian Institute of Technology Delhi Delhi India
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Al-Ali A, Waheed W, Abu-Nada E, Alazzam A. A review of active and passive hybrid systems based on Dielectrophoresis for the manipulation of microparticles. J Chromatogr A 2022; 1676:463268. [DOI: 10.1016/j.chroma.2022.463268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 12/14/2022]
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Nagase K, Takagi H, Nakada H, Ishikawa H, Nagata Y, Aomori T, Kanazawa H. Chromatography columns packed with thermoresponsive-cationic-polymer-modified beads for therapeutic drug monitoring. Sci Rep 2022; 12:12847. [PMID: 35896711 PMCID: PMC9329465 DOI: 10.1038/s41598-022-16928-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 07/18/2022] [Indexed: 12/03/2022] Open
Abstract
Therapeutic drug monitoring, which is used to determine appropriate drug doses, is critical in pharmacological therapy. In this study, we developed thermoresponsive chromatography columns with various cationic properties for effective therapeutic drug monitoring. Thermoresponsive cationic copolymer poly(N-isopropylacrylamide-co-n-butyl methacrylate-co-N,N-dimethylaminopropyl acrylamide) (P(NIPAAm-co-BMA-co-DMAPAAm))-modified silica beads, which were used as the chromatographic stationary phase, were prepared by modifying the radical initiator of the silica beads, followed by radical polymerization. Characterization of the prepared silica beads demonstrated that thermoresponsive polymers with various cationic properties successfully modified the beads. The elution behavior of several steroids in the prepared bead-packed columns at various temperatures indicated that the optimal column operating temperature was 30 °C. Appropriate measurement conditions for 13 drugs were investigated by varying the cationic properties of the columns and the pH of the mobile phase. Drug concentrations in serum samples were determined using the developed columns and mobile phases with a suitable pH. Voriconazole concentrations in human serum samples were determined using the developed columns with all-aqueous mobile phases. We anticipate that the developed chromatography columns can be used for therapeutic drug monitoring because drug concentrations can be measured using all-aqueous mobile phases that are suitable in clinical settings.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
| | - Hikaru Takagi
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideo Nakada
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
- Department of Pharmacy, Keio University Hospital, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Haruki Ishikawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
- Department of Pharmacy, Keio University Hospital, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Yoshiko Nagata
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Tohru Aomori
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
- Department of Pharmacy, Keio University Hospital, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
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Nagase K, Kitazawa S, Kogure T, Yamada S, Katayama K, Kanazawa H. Viral vector purification with thermoresponsive-anionic mixed polymer brush modified beads-packed column. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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Nagase K, Inoue S, Inoue M, Kanazawa H. Two-dimensional temperature-responsive chromatography using a poly(N-isopropylacrylamide) brush-modified stationary phase for effective therapeutic drug monitoring. Sci Rep 2022; 12:2653. [PMID: 35173260 PMCID: PMC8850448 DOI: 10.1038/s41598-022-06638-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/03/2022] [Indexed: 11/09/2022] Open
Abstract
Therapeutic drug monitoring (TDM) is an effective pharmacological approach for controlling drug concentration in a patient's serum. Herein, a new two-dimensional chromatography system was developed using two poly(N-isopropylacrylamide) (PNIPAAm)-modified bead-packed columns for effective and safe drug monitoring. PNIPAAm-modified silica beads were prepared as packing materials using atom transfer radical polymerization of NIPAAm. The increase in the retention times of the drugs requiring TDM with increasing temperature, was attributed to enhanced hydrophobic interactions at elevated temperatures. The drugs and serum proteins were separated on the prepared column at 40 °C using an all-aqueous mobile phase. Differences in the hydrophobic interactions accounted for the elution of the serum proteins and drugs at short and long retention times, respectively, and a primary column was employed to separate the serum proteins and drugs. After eluting the serum proteins from the column, the drug was introduced into the secondary column, leading to a peak of its purified form and enabling determination of the drug concentration. Two-dimensional temperature-responsive chromatography can benefit TDM by allowing the drug concentration in the serum to be measured in all-aqueous mobile phases without sample preparation.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
| | - So Inoue
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Masakazu Inoue
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
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Afzali Z, Matsushita T, Kogure A, Masuda T, Azuma T, Kushiro K, Kasama T, Miyake R, Takai M. Cell Adhesion and Migration on Thickness Gradient Bilayer Polymer Brush Surfaces: Effects of Properties of Polymeric Materials of the Underlayer. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2605-2617. [PMID: 35001615 DOI: 10.1021/acsami.1c21453] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In the field of tissue engineering and biomaterials, controlling the surface properties and mechanical properties of scaffold materials is crucial and has attracted much attention. Here, two types of bilayer polymer brushes composed of a hydrophilic underlying layer and a cationic surface layer [made of poly(2-aminoethyl methacrylate)] with a thickness gradient were prepared by surface-initiated atom-transfer radical polymerization. To investigate the influence of the stiffness as a mechanical property of the polymer brush on cell behavior, the underlayer was prepared from either 2-methacryloyloxyethyl phosphorylcholine or oligo(ethylene glycol) methyl ether methacrylate, with the bilayers designated as gradient poly(2-methacryloyloxyethyl phosphorylcholine)-block-poly(2-aminoethyl methacrylate) [grad-pMbA] and gradient poly(oligo[ethylene glycol] methyl ether methacrylate)-block-poly(2-aminoethyl methacrylate) [grad-pEGbA], respectively. Characterization of these surfaces was performed by spectroscopic ellipsometry, X-ray reflectivity, and determination of the zeta potential, static contact angle, and force curve. These diblock copolymer brushes with a thickness gradient helped to distinguish the effects of the mechanical and surface properties of the brushes on cell behavior. The attachment and motility of L929 fibroblasts and epithelial MCF 10A cells on the fabricated brushes were then assessed. L929 cells had a round shape on the thin surface layer of grad-pMbA and spread well on thicker areas. In contrast, MCF 10A cells spread well in areas of any thickness of either grad-pMbA or grad-pEGbA. Single MCF 10A cells migrated randomly on grad-pMbA, whereas grouped cells started to climb up along the thickness gradient of grad-pMbA. In contrast, both single and grouped MCF 10A cells migrated randomly on grad-pEGbA. These thickness gradient diblock copolymer brushes are simple, reproducible, and reasonable platforms that can facilitate practical applications of biomaterials, for example, in tissue engineering and biomaterials.
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Affiliation(s)
- Zahra Afzali
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taishi Matsushita
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Akinori Kogure
- Shimadzu Techno-Research, Inc., 380-1 Horiyamashita, Hatano-city, Kanagawa 259-1304, Japan
| | - Tsukuru Masuda
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tomoyuki Azuma
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keiichiro Kushiro
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Toshihiro Kasama
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryo Miyake
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Madoka Takai
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Temperature responsive chromatography for therapeutic drug monitoring with an aqueous mobile phase. Sci Rep 2021; 11:23508. [PMID: 34873248 PMCID: PMC8648775 DOI: 10.1038/s41598-021-02998-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/15/2021] [Indexed: 11/30/2022] Open
Abstract
Therapeutic drug monitoring is a key technology for effective pharmacological treatment. In the present study, a temperature-responsive chromatography column was developed for safe and simple therapeutic drug monitoring without the use of organic solvents. Poly(N-isopropylacrylamide) (PNIPAAm) hydrogel-modified silica beads were prepared via a condensation reaction and radical polymerization. The temperature-dependent elution behavior of the drugs was observed using a PNIPAAm-modified silica-bead packed column and an all-aqueous mobile phase. Sharp peaks with reproducible retention times were observed at temperatures of 30 °C or 40 °C because the PNIPAAm hydrogel on the silica beads shrinks at these temperatures, limiting drug diffusion into the PNIPAAm hydrogel layer. The elution behavior of the sample from the prepared column was examined using a mixture of serum and model drugs. The serum and drugs were separated on the column at 30 °C or 40 °C, and the concentration of the eluted drug was obtained using the calibration curve. The results show that the prepared chromatography column would be useful for therapeutic drug monitoring because the drug concentration in serum can be measured without using organic solvents in the mobile phase and without any need for sample preparation.
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Nagase K, Edatsune G, Nagata Y, Matsuda J, Ichikawa D, Yamada S, Hattori Y, Kanazawa H. Thermally-modulated cell separation columns using a thermoresponsive block copolymer brush as a packing material for the purification of mesenchymal stem cells. Biomater Sci 2021; 9:7054-7064. [PMID: 34296234 DOI: 10.1039/d1bm00708d] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cell therapy using mesenchymal stem cells (MSCs) is used as effective regenerative treatment. Cell therapy requires effective cell separation without cell modification and cellular activity reduction. In this study, we developed a temperature-modulated mesenchymal stem cell separation column. A temperature-responsive cationic block copolymer, poly(N,N-dimethylaminopropylacrylamide)-b-poly(N-isopropylacrylamide)(PDMAPAAm-b-PNIPAAm) brush with various cationic copolymer compositions, was grafted onto silica beads via two-step atom transfer radical polymerization. Using the packed beads, the elution behavior of the MSCs was observed. At 37 °C, the MSCs were adsorbed onto the column via both hydrophobic and electrostatic interactions with the PNIPAAm and PDMAPAAm segments of the copolymer brush, respectively. By reducing the temperature to 4 °C, the adsorbed MSCs were eluted from the column by reducing the hydrophobic and electrostatic interactions attributed to the hydration and extension of the PNIPAAm segment of the block copolymer brush. From the temperature-modulated adsorption and elution behavior of MSCs, a suitable DMAPAAm composition of the block copolymer brush was determined. Using the column, a mixture of MSC and BM-CD34+ cells was separated by simply changing the column temperature. The column was used to purify the MSCs, with purities of 78.2%, via a temperature change from 37 °C to 4 °C. Additionally, the cellular activity of the MSCs was retained throughout the column separation step. Overall, the obtained results show that the developed column is useful for MSC separation without cell modification and cellular activity reduction.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Goro Edatsune
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Yuki Nagata
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Junnosuke Matsuda
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Daiju Ichikawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Sota Yamada
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Yutaka Hattori
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
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Nagase K, Ishizawa Y, Inoue M, Kokubun M, Yamada S, Kanazawa H. Temperature-responsive spin column for sample preparation using an all-aqueous eluent. Anal Chim Acta 2021; 1179:338806. [PMID: 34535268 DOI: 10.1016/j.aca.2021.338806] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/31/2021] [Accepted: 06/24/2021] [Indexed: 11/21/2022]
Abstract
We present a temperature-responsive spin column using an all-aqueous eluent. The method is intended as a simple sample preparation method for protein removal from serum, which is required for serum drug analysis. As packing materials for the spin column, we prepared two types of silica beads via surface-initiated radical polymerization. The large beads (diameter, 40-63 μm) were grafted with a temperature-responsive cationic copolymer, poly(N-isopropylacrylamide-co-N,N-dimethylaminopropyl acrylamide-co-n-butyl methacrylate) (P(NIPAAm-co-DMAPAAm-co-BMA)), and the small beads (diameter, 5 μm) were grafted with a temperature-responsive hydrophobic copolymer, P(NIPAAm-co-BMA). The beads were packed into the spin column as a double layer: P(NIPAAm-co-BMA) silica beads on the bottom and P(NIPAAm-co-DMAPAAm-co-BMA) silica beads on the top. The sample purification efficacy of the prepared spin column was evaluated on a model sample analyte (the antifungal drug voriconazole mixed with blood serum proteins). At 40 °C, the serum proteins and voriconazole were adsorbed on the prepared spin column via hydrophobic and electrostatic interactions. When the temperature was decreased to 4 °C, the adsorbed voriconazole was eluted from the column with the pure water eluent, while the serum proteins remained in the column. This temperature-responsive spin column realizes sample preparation simply by changing the temperature.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
| | - Yuta Ishizawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Masakazu Inoue
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Matsurika Kokubun
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Sota Yamada
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
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16
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Nagase K. Thermoresponsive interfaces obtained using poly(N-isopropylacrylamide)-based copolymer for bioseparation and tissue engineering applications. Adv Colloid Interface Sci 2021; 295:102487. [PMID: 34314989 DOI: 10.1016/j.cis.2021.102487] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 12/11/2022]
Abstract
Poly(N-isopropylacrylamide) (PNIPAAm) is the most well-known and widely used stimuli-responsive polymer in the biomedical field owing to its ability to undergo temperature-dependent hydration and dehydration with temperature variations, causing hydrophilic and hydrophobic alterations. This temperature-dependent property of PNIPAAm provides functionality to interfaces containing PNIPAAm. Notably, the hydrophilic and hydrophobic alterations caused by the change in the temperature-responsive property of PNIPAAm-modified interfaces induce temperature-modulated interactions with biomolecules, proteins, and cells. This intrinsic property of PNIPAAm can be effectively used in various biomedical applications, particularly in bioseparation and tissue engineering applications, owing to the functionality of PNIPAAm-modified interfaces based on the temperature modulation of the interaction between PNIPAAm-modified interfaces and biomolecules and cells. This review focuses on PNIPAAm-modified interfaces in terms of preparation method, properties, and their applications. Advances in PNIPAAm-modified interfaces for existing and developing applications are also summarized.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan.
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17
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Schubotz S, Honnigfort C, Nazari S, Fery A, Sommer JU, Uhlmann P, Braunschweig B, Auernhammer GK. Memory effects in polymer brushes showing co-nonsolvency effects. Adv Colloid Interface Sci 2021; 294:102442. [PMID: 34118473 DOI: 10.1016/j.cis.2021.102442] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 05/04/2021] [Accepted: 05/14/2021] [Indexed: 11/18/2022]
Abstract
Densely packed polymer chains grafted to a substrate, especially polymer brushes, have been studied intensively. Of special interest are systems that react to changes in external conditions or"remember" previous conditions. With this focus, we explore the properties of PNiPAAm brushes and relate published work to own results. The co-nonsolvency effect leads to a collapse of a PNiPAAm brush for a certain mixing ratio of ethanol in water. This also influences the wetting behavior of PNiPAAm brushes. We show that through prewetting of a brush with different liquids (water and ethanol), the contact angle of subsequent water drops changes significantly. To explain this change, the swelling of the brush was investigated with spectroscopic ellipsometry and the orientation of the molecules at the surface with sum-frequency generation (SFG). Only little change in swelling was found. The SFG measurements reveal in the ethanol prewetted case a well ordered hydrophobic methyl layer at the interface, which is consistent with the contact angle measurement.
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Affiliation(s)
- Simon Schubotz
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, Dresden 01069, Germany; Technische Universität Dresden, Helmholtztraße 10, Dresden 01062, Germany.
| | - Christian Honnigfort
- Institute of Physical Chemistry and Center for Soft Nanoscience, Corrensstraße 28-30, Münster 48149, Germany
| | - Saghar Nazari
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, Dresden 01069, Germany; Technische Universität Dresden, Helmholtztraße 10, Dresden 01062, Germany
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, Dresden 01069, Germany; Technische Universität Dresden, Helmholtztraße 10, Dresden 01062, Germany
| | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, Dresden 01069, Germany; Institute for Theoretical Physics, Technische Universität Dresden, 01069 Dresden, Germany
| | - Petra Uhlmann
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, Dresden 01069, Germany
| | - Björn Braunschweig
- Institute of Physical Chemistry and Center for Soft Nanoscience, Corrensstraße 28-30, Münster 48149, Germany
| | - Günter K Auernhammer
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Straße 6, Dresden 01069, Germany; Max-Planck-Institut für Polymerforschung, Ackermannweg 10, Mainz 55128, Germany.
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18
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Nagase K, Umemoto Y, Kanazawa H. Effect of pore diameter on the elution behavior of analytes from thermoresponsive polymer grafted beads packed columns. Sci Rep 2021; 11:9976. [PMID: 33976250 PMCID: PMC8113370 DOI: 10.1038/s41598-021-89165-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/21/2021] [Indexed: 02/07/2023] Open
Abstract
Temperature-responsive chromatography using thermoresponsive polymers is innovative and can control analyte retention via column temperature. Analyte elution behavior in this type of chromatography depends on the modified thermoresponsive polymer and the structure of the base materials. In the present study, we examine the effect of the pore diameter of silica beads on analyte elution behavior in temperature-responsive chromatography. Poly(N-isopropylacrylamide-co-n-butyl methacrylate) hydrogel was applied to beads of various pore sizes: 7, 12, and 30 nm. Almost the same amount of copolymer hydrogel was applied to all beads, indicating that the efficiency of copolymer modification was independent of pore size. Analyte retention on prepared beads in a packed column was observed using steroids, benzodiazepines, and barbiturates as analytes. Analyte retention times increased with temperature on packed columns of 12- and 30-nm beads, whereas the column packed with 7-nm beads exhibited decreased retention times with increasing temperature. The difference in analyte elution behavior among the various pore sizes was attributed to analyte diffusion into the bead pores. These results demonstrate that bead pore diameter determines temperature-dependent elution behavior.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
| | - Yuta Umemoto
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
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19
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Bookhold J, Dirksen M, Wiehemeier L, Knust S, Anselmetti D, Paneff F, Zhang X, Gölzhäuser A, Kottke T, Hellweg T. Smart membranes by electron beam cross-linking of copolymer microgels. SOFT MATTER 2021; 17:2205-2214. [PMID: 33459755 DOI: 10.1039/d0sm02041a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Poly(N-isopropylacrylamide) (pNIPAM) based copolymer microgels were used to create free-standing, transferable, thermoresponsive membranes. The microgels were synthesized by copolymerization of NIPAM with N-benzylhydrylacrylamide (NBHAM). Monolayers of these colloidal gels were subsequently cross-linked using an electron gun leading to the formation of a connected monolayer. Furthermore, the cross-linked microgel layer is detached from the supporting material by dissolving the substrate. These unique systems can be used as transferable, thermoresponsive coatings and as thermoresponsive membranes. As a proof of principle for the use of such membranes we studied the ion transport through them at different temperatures revealing drastic changes when the lower critical solution temperature of the copolymer microgels is reached.
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Affiliation(s)
- Johannes Bookhold
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Maxim Dirksen
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Lars Wiehemeier
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Sebastian Knust
- University Bielefeld, Department of Physics, Experimental Biophysics, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Dario Anselmetti
- University Bielefeld, Department of Physics, Experimental Biophysics, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Florian Paneff
- University Bielefeld, Department of Physics, Physics of Supermolecular Systems and Surfaces, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Xianghui Zhang
- University Bielefeld, Department of Physics, Physics of Supermolecular Systems and Surfaces, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Armin Gölzhäuser
- University Bielefeld, Department of Physics, Physics of Supermolecular Systems and Surfaces, Universitätsstr. 25, 33615 Bielefeld, Germany
| | - Tilman Kottke
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
| | - Thomas Hellweg
- University Bielefeld, Department of Chemistry, Physical and Biophysical Chemistry, Universitätsstr. 25, 33615 Bielefeld, Germany.
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20
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Nagase K, Shimura M, Shimane R, Hanaya K, Yamada S, Akimoto AM, Sugai T, Kanazawa H. Selective capture and non-invasive release of cells using a thermoresponsive polymer brush with affinity peptides. Biomater Sci 2021; 9:663-674. [DOI: 10.1039/d0bm01453b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Thermoresponsive block copolymer brush with cell affinity peptides was prepared via two steps of ATRP and subsequent click reaction. The prepared polymer brush can purify cells with high selectivity by simply changing temperature.
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Affiliation(s)
| | | | | | | | - Sota Yamada
- Faculty of Pharmacy
- Keio University
- Minato
- Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Bunkyo
- Japan
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21
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Nagase K, Kanazawa H. Temperature-responsive chromatography for bioseparations: A review. Anal Chim Acta 2020; 1138:191-212. [DOI: 10.1016/j.aca.2020.07.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023]
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22
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Nagase K, Ota A, Hirotani T, Yamada S, Akimoto AM, Kanazawa H. Thermoresponsive Cationic Block Copolymer Brushes for Temperature‐Modulated Stem Cell Separation. Macromol Rapid Commun 2020; 41:e2000308. [DOI: 10.1002/marc.202000308] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/03/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy Keio University 1‐5‐30 Shibakoen, Minato Tokyo 105‐8512 Japan
| | - Ayumu Ota
- Faculty of Pharmacy Keio University 1‐5‐30 Shibakoen, Minato Tokyo 105‐8512 Japan
| | - Tadashi Hirotani
- Faculty of Pharmacy Keio University 1‐5‐30 Shibakoen, Minato Tokyo 105‐8512 Japan
| | - Sota Yamada
- Faculty of Pharmacy Keio University 1‐5‐30 Shibakoen, Minato Tokyo 105‐8512 Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering Schools of Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo Tokyo 113‐8656 Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy Keio University 1‐5‐30 Shibakoen, Minato Tokyo 105‐8512 Japan
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23
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Imato K, Nagata K, Watanabe R, Takeda N. Cell adhesion control by photoinduced LCST shift of PNIPAAm-based brush scaffolds. J Mater Chem B 2020; 8:2393-2399. [DOI: 10.1039/c9tb02958c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cell adhesion was markedly regulated on spiropyran-containing PNIPAAm-based brush scaffolds by photoinduced LCST shift across a standard culture temperature.
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Affiliation(s)
- Keiichi Imato
- Department of Life Science and Medical Bioscience
- Graduate School of Advanced Science and Engineering
- Waseda University (TWIns)
- Tokyo 162-8480
- Japan
| | - Kazuho Nagata
- Department of Life Science and Medical Bioscience
- Graduate School of Advanced Science and Engineering
- Waseda University (TWIns)
- Tokyo 162-8480
- Japan
| | - Rina Watanabe
- Department of Life Science and Medical Bioscience
- Graduate School of Advanced Science and Engineering
- Waseda University (TWIns)
- Tokyo 162-8480
- Japan
| | - Naoya Takeda
- Department of Life Science and Medical Bioscience
- Graduate School of Advanced Science and Engineering
- Waseda University (TWIns)
- Tokyo 162-8480
- Japan
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24
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Nagase K, Shukuwa R, Takahashi H, Takeda N, Okano T. Enhanced mechanical properties and cell separation with thermal control of PIPAAm-brushed polymer-blend microfibers. J Mater Chem B 2020; 8:6017-6026. [DOI: 10.1039/d0tb00972e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Thermoresponsive microfibers with enhanced mechanical properties for temperature-modulated cell separation were developed by electrospinning of blending PVBC and PBMA, and by subsequently modifying the microfibers with PIPAAm via ATRP.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy
- Keio University
- Tokyo 105-8512
- Japan
- Institute of Advanced Biomedical Engineering and Science
| | - Risa Shukuwa
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
- Department of Life Science and Medical Bioscience
| | - Hironobu Takahashi
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
| | - Naoya Takeda
- Department of Life Science and Medical Bioscience
- Graduate School of Advanced Science and Engineering
- Waseda University (TWIns)
- Tokyo 162-8480
- Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
- Cell Sheet Tissue Engineering Center (CSTEC)
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25
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Nagase K, Uchikawa N, Hirotani T, Akimoto AM, Kanazawa H. Thermoresponsive anionic copolymer brush-grafted surfaces for cell separation. Colloids Surf B Biointerfaces 2020; 185:110565. [DOI: 10.1016/j.colsurfb.2019.110565] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/07/2019] [Accepted: 10/04/2019] [Indexed: 12/15/2022]
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26
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Yan W, Ramakrishna SN, Romio M, Benetti EM. Bioinert and Lubricious Surfaces by Macromolecular Design. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13521-13535. [PMID: 31532689 DOI: 10.1021/acs.langmuir.9b02316] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The modification of a variety of biomaterials and medical devices often encompasses the generation of biopassive and lubricious layers on their exposed surfaces. This is valid when the synthetic supports are required to integrate within physiological media without altering their interfacial composition and when the minimization of shear stress prevents or reduces damage to the surrounding environment. In many of these cases, hydrophilic polymer brushes assembled from surface-interacting polymer adsorbates or directly grown by surface-initiated polymerizations (SIP) are chosen. Although growing efforts by polymer chemists have been focusing on varying the composition of polymer brushes in order to attain increasingly bioinert and lubricious surfaces, the precise modulation of polymer architecture has simultaneously enabled us to substantially broaden the tuning potential for the above-mentioned properties. This feature article concentrates on reviewing this latter strategy, comparatively analyzing how polymer brush parameters such as molecular weight and grafting density, the application of block copolymers, the introduction of branching and cross-links, or the variation of polymer topology beyond the simple, linear chains determine highly technologically relevant properties, such as biopassivity and lubrication.
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Affiliation(s)
- Wenqing Yan
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Shivaprakash N Ramakrishna
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Matteo Romio
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
| | - Edmondo M Benetti
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
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27
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Masuda T, Shimada N, Maruyama A. Liposome-Surface-Initiated ARGET ATRP: Surface Softness Generated by "Grafting from" Polymerization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5581-5586. [PMID: 30929438 DOI: 10.1021/acs.langmuir.9b00450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Liposomes are self-assembled vesicles of amphiphilic lipid molecules, which have been investigated as models of cells, or tools for drug delivery systems. In these systems, the surface property of the liposomes plays an important role. In this study, we demonstrated a novel polymer modification of liposome surfaces using a controlled radical polymerization, "activators regenerated by electron transfer for atom transfer radical polymerization", in aqueous media without a deoxygenation step. Dynamic light scattering and 1H NMR measurement indicated the successful modification of the polymer on the liposome surface. The molecular weight of the grafted polymer chain was systematically controlled by changing the monomer concentrations in the "grafting from" polymerization. Moreover, the modification resulted in a notable increase in surface softness as indicated by electrophoretic behavior, which was comparable to the surface of cells. The preparation method and the characterization presented in this study would be a helpful guideline in designing the polymer/liposome hybrid having target surface properties.
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Affiliation(s)
- Tsukuru Masuda
- School of Life Science and Technology , Tokyo Institute of Technology , B-57 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8501 , Japan
| | - Naohiko Shimada
- School of Life Science and Technology , Tokyo Institute of Technology , B-57 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8501 , Japan
| | - Atsushi Maruyama
- School of Life Science and Technology , Tokyo Institute of Technology , B-57 4259 Nagatsuta-cho , Midori-ku, Yokohama , Kanagawa 226-8501 , Japan
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28
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Fan Z, Nie Y, Chen Z, Xie X, Liao X, Wei Y. Construction of novel temperature-responsive hydrogel culture system based on the biomimetic method for stem cell sheet harvest. J BIOACT COMPAT POL 2019. [DOI: 10.1177/0883911519841393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Temperature-responsive hydrogel culture system is considered as an ideal platform for cell sheet harvest, but its complex preparation methods and harsh reaction conditions limit its application. Inspired by the marine mussels, a biomimetic method presented here is to construct a novel temperature-responsive hydrogel culture system for stem cell sheet harvest. The tissue culture polystyrene is first modified with polydopamine coating, and then amine-terminated poly(N-isopropylacrylamide) is grafted onto the coating via the Schiff base or Michael addition reaction to construct the temperature-sensitive hydrogel culture system. Then, bone marrow stromal cells are cultured on the culture system to construct cell sheets. The prepared culture system shows significant temperature-sensitive property with the grafted concentrations of poly(N-isopropylacrylamide) ranging from 0.5 to 1 g/L. Meanwhile, the constructed culture system has low cytotoxicity and facilitates the stem cell adhesion, proliferation, and cell sheet formation at 37°C. When the culture system is placed in a 20°C environment, the cell sheet can be completely detached from the surface of tissue culture polystyrene without being treated with any enzymes. More importantly, the cell morphology, cell sheet thickness, and the fibril structure of the associated proteins are similar to the cells cultured on the tissue culture polystyrene without modification. The biomimetic, simple, inexpensive, and environmentally friendly preparation of the culture system enables it to be used for the harvest of cell sheet and even applied to tissue engineering for tissue regeneration.
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Affiliation(s)
- Zengjie Fan
- School of Stomatology, Lanzhou University, Lanzhou, P.R. China
| | - Yingying Nie
- Institute of Sensing Technology, Gansu Academy of Sciences, Lanzhou, P.R. China
| | - Zizi Chen
- School of Stomatology, Lanzhou University, Lanzhou, P.R. China
| | - Xuzhuzi Xie
- School of Stomatology, Lanzhou University, Lanzhou, P.R. China
| | - Xiaozhu Liao
- School of Stomatology, Lanzhou University, Lanzhou, P.R. China
| | - Yuan Wei
- School of Stomatology, Lanzhou University, Lanzhou, P.R. China
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29
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Nagase K, Inanaga D, Ichikawa D, Mizutani Akimoto A, Hattori Y, Kanazawa H. Temperature-modulated cell-separation column using temperature-responsive cationic copolymer hydrogel-modified silica beads. Colloids Surf B Biointerfaces 2019; 178:253-262. [PMID: 30875584 DOI: 10.1016/j.colsurfb.2019.02.057] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/05/2019] [Accepted: 02/28/2019] [Indexed: 01/06/2023]
Abstract
There is strong demand for cell separation methods that do not decrease cell activity or modify cell surfaces. Here, new temperature-modulated cell-separation columns not requiring cell-surface premodification are described. The columns were packed with temperature-responsive cationic polymer hydrogel-modified silica beads. Poly(N-isopropylacrylamide-co-n-butyl methacrylate-co-N,N-dimethylaminopropyl acrylamide) hydrogels with various cationic moieties were attached to silica-bead surfaces by radical polymerization using N,N'-methylenebisacrylamide as a crosslinking agent. The beads were packed into solid-phase extraction columns, and temperature-dependent cell elution from the columns was found using HL-60 and Jurkat cells. The retention HL-60 and Jurkat cells in columns containing cationic beads at 37 °C was 95.3% to 99.6% and 95.0% to 98.8%, respectively. By contrast, beads without cationic properties exhibited low cell retention (20.6% for HL-60 and 32.5% for Jurkat cells). The cells were mainly retained through both electrostatic and hydrophobic interactions. The retained HL-60 (4.9%) and Jurkat cells (40%) were eluted at 4 °C from the column with a low composition of cationic monomer (DMAPAAm, 1 mol% in copolymer), because the temperature-responsive hydrogels on the beads became hydrophilic, decreasing the hydrophobic interactions between the cells and the beads. A higher number of Jurkat cells than HL-60 cells were eluted because of differences in their electrostatic properties (Jurkat cells: -2.53 mV; HL-60 cells: -20.7 mV). The results indicated that cell retention by the hydrogel-coated beads packed in a solid phase extraction column could be modulated simply by changing the temperature.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan.
| | - Daimu Inanaga
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Daiju Ichikawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656, Japan
| | - Yutaka Hattori
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo, 105-8512, Japan
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Nagase K, Okano T, Kanazawa H. Poly(N-isopropylacrylamide) based thermoresponsive polymer brushes for bioseparation, cellular tissue fabrication, and nano actuators. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.nanoso.2018.03.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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31
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NAGASE K, OKANO T, KANAZAWA H. Design of Functional Thermoresponsive Polymer Brushes and Their Application to Bioseparation. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Teruo OKANO
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns
- Cell Sheet Tissue Engineering Center (CSTEC) and Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah
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32
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KIMURA T, NAKAMURA N, HASHIMOTO Y, SAKAGUCHI S, KIMURA S, KISHIDA A. Selective Cell Capture and Release Using Antibody-Immobilized Polymer-Grafted Surface. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tsuyoshi KIMURA
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Naoko NAKAMURA
- College of Systems Engineering and Science, Shibaura Institute of Technology
| | - Yoshihide HASHIMOTO
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | | | | | - Akio KISHIDA
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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Nagase K, Yamato M, Kanazawa H, Okano T. Poly(N-isopropylacrylamide)-based thermoresponsive surfaces provide new types of biomedical applications. Biomaterials 2017; 153:27-48. [PMID: 29096399 DOI: 10.1016/j.biomaterials.2017.10.026] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/12/2017] [Accepted: 10/15/2017] [Indexed: 02/06/2023]
Abstract
Thermoresponsive surfaces, prepared by grafting of poly(N-isopropylacrylamide) (PIPAAm) or its copolymers, have been investigated for biomedical applications. Thermoresponsive cell culture dishes that show controlled cell adhesion and detachment following external temperature changes, represent a promising application of thermoresponsive surfaces. These dishes can be used to fabricate cell sheets, which are currently used as effective therapies for patients. Thermoresponsive microcarriers for large-scale cell cultivation have also been developed by taking advantage of the thermally modulated cell adhesion and detachment properties of thermoresponsive surfaces. Furthermore, thermoresponsive bioseparation systems using thermoresponsive surfaces for separating and purifying pharmaceutical proteins and therapeutic cells have been developed, with the separation systems able to maintain their activity and biological potency throughout the procedure. These applications of thermoresponsive surfaces have been improved with progress in preparation techniques of thermoresponsive surfaces, such as polymerization methods, and surface modification techniques. In the present review, the various types of PIPAAm-based thermoresponsive surfaces are summarized by describing their preparation methods, properties, and successful biomedical applications.
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Affiliation(s)
- Kenichi Nagase
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan; Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan.
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan
| | - Hideko Kanazawa
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan; Cell Sheet Tissue Engineering Center (CSTEC) and Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, Utah 84112, USA.
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34
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Nagase K, Sakurada Y, Onizuka S, Iwata T, Yamato M, Takeda N, Okano T. Thermoresponsive polymer-modified microfibers for cell separations. Acta Biomater 2017; 53:81-92. [PMID: 28219809 DOI: 10.1016/j.actbio.2017.02.033] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 01/24/2017] [Accepted: 02/16/2017] [Indexed: 02/08/2023]
Abstract
Thermoresponsive polymer-modified microfibers were prepared through electrospinning of poly(4-vinylbenzyl chloride) (PVBC) and subsequent surface-initiated atom transfer radical polymerization for grafting poly(N-isopropylacrylamide) (PIPAAm). Electrospinning conditions were optimized to produce large-diameter (20μm) PVBC microfibers. The amount of PIPAAm grafted on the microfibers was controlled via the IPAAm monomer concentration. The microfibers exhibited thermally controlled cell separation by selective adhesion of normal human dermal fibroblasts in a mixed cell suspension that also contained human umbilical vein endothelial cells. In addition, adipose-derived stem cells (ADSCs) exhibited thermally modulated cell adhesion and detachment, while adhesion of other ADSC-related cells was low. Thus, ADSCs could be separated from a mixture of adipose tissue-derived cells simply by changing the temperature. Overall, the PIPAAm-modified microfibers are potentially applicable as temperature-modulated cell separation materials. STATEMENT OF SIGNIFICANCE Thermoresponsive poly(N-isopropylacrylamide) (PIPAAm) polymer-modified poly(4-vinylbenzyl chloride) (PVBC) microfibers were prepared via electrospinning of PVBC, followed by surface-initiated ATRP. They formed effective thermally-modulated cell separation materials with large surface areas. Cells adhered and extended along the modified microfibers; this was not observed on previously reported PIPAAm-modified flat substrates. The cellular adhesion enabled separation of fibroblast cells, as well as that of adipose-derived mesenchymal stem cells, from mixtures of similar cells. Thus, the temperature-controlled thermoresponsive microfibers would be potentially useful as cell separation materials.
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35
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Zoppe JO, Ataman NC, Mocny P, Wang J, Moraes J, Klok HA. Surface-Initiated Controlled Radical Polymerization: State-of-the-Art, Opportunities, and Challenges in Surface and Interface Engineering with Polymer Brushes. Chem Rev 2017; 117:1105-1318. [PMID: 28135076 DOI: 10.1021/acs.chemrev.6b00314] [Citation(s) in RCA: 600] [Impact Index Per Article: 85.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of polymer brushes by surface-initiated controlled radical polymerization (SI-CRP) techniques has become a powerful approach to tailor the chemical and physical properties of interfaces and has given rise to great advances in surface and interface engineering. Polymer brushes are defined as thin polymer films in which the individual polymer chains are tethered by one chain end to a solid interface. Significant advances have been made over the past years in the field of polymer brushes. This includes novel developments in SI-CRP, as well as the emergence of novel applications such as catalysis, electronics, nanomaterial synthesis and biosensing. Additionally, polymer brushes prepared via SI-CRP have been utilized to modify the surface of novel substrates such as natural fibers, polymer nanofibers, mesoporous materials, graphene, viruses and protein nanoparticles. The last years have also seen exciting advances in the chemical and physical characterization of polymer brushes, as well as an ever increasing set of computational and simulation tools that allow understanding and predictions of these surface-grafted polymer architectures. The aim of this contribution is to provide a comprehensive review that critically assesses recent advances in the field and highlights the opportunities and challenges for future work.
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Affiliation(s)
- Justin O Zoppe
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Nariye Cavusoglu Ataman
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Piotr Mocny
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Jian Wang
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - John Moraes
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
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36
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Lee W, Tseng P, Di Carlo D. Microfluidic Cell Sorting and Separation Technology. MICROSYSTEMS AND NANOSYSTEMS 2017. [DOI: 10.1007/978-3-319-44139-9_1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Nagase K, Shukuwa R, Onuma T, Yamato M, Takeda N, Okano T. Micro/nano-imprinted substrates grafted with a thermoresponsive polymer for thermally modulated cell separation. J Mater Chem B 2017; 5:5924-5930. [DOI: 10.1039/c7tb01251a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermoresponsive convex or concave substrates were developed as functional cell separation materials by the combination of thermal nano-imprinted lithography and subsequent surface-initiated ATRP of PIPAAm.
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Affiliation(s)
- Kenichi Nagase
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
- Faculty of Pharmacy
| | - Risa Shukuwa
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
- Department of Life Science and Medical Bioscience
| | - Takahiro Onuma
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
- Department of Life Science and Medical Bioscience
| | - Masayuki Yamato
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
| | - Naoya Takeda
- Department of Life Science and Medical Bioscience
- Graduate School of Advanced Science and Engineering
- Waseda University (TWIns)
- Tokyo 162-8480
- Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
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38
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Masuda T, Kajisa T, Akimoto AM, Fujita A, Nagase K, Okano T, Sakata T, Yoshida R. Dynamic electrical behaviour of a thermoresponsive polymer in well-defined poly(N-isopropylacrylamide)-grafted semiconductor devices. RSC Adv 2017. [DOI: 10.1039/c7ra05786e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, we found that the phase transition behaviour from swelling state to deswelling state in response to temperature change was electrically detected in real time by using the poly(N-isopropylacrylamide)-grafted gate field effect transistor.
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Affiliation(s)
- Tsukuru Masuda
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Taira Kajisa
- PROVIGATE Inc
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Akane Fujita
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Kenichi Nagase
- Institute of Advanced Biomiedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
| | - Teruo Okano
- Institute of Advanced Biomiedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
| | - Toshiya Sakata
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Ryo Yoshida
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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39
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Combinational Effect of Cell Adhesion Biomolecules and Their Immobilized Polymer Property to Enhance Cell-Selective Adhesion. INT J POLYM SCI 2016. [DOI: 10.1155/2016/2090985] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Although surface immobilization of medical devices with bioactive molecules is one of the most widely used strategies to improve biocompatibility, the physicochemical properties of the biomaterials significantly impact the activity of the immobilized molecules. Herein we investigate the combinational effects of cell-selective biomolecules and the hydrophobicity/hydrophilicity of the polymeric substrate on selective adhesion of endothelial cells (ECs), fibroblasts (FBs), and smooth muscle cells (SMCs). To control the polymeric substrate, biomolecules are immobilized on thermoresponsive poly(N-isopropylacrylamide-co-2-carboxyisopropylacrylamide) (poly(NIPAAm-co-CIPAAm))-grafted glass surfaces. By switching the molecular conformation of the biomolecule-immobilized polymers, the cell-selective adhesion performances are evaluated. In case of RGDS (Arg-Gly-Asp-Ser) peptide-immobilized surfaces, all cell types adhere well regardless of the surface hydrophobicity. On the other hand, a tri-Arg-immobilized surface exhibits FB-selectivity when the surface is hydrophilic. Additionally, a tri-Ile-immobilized surface exhibits EC-selective cell adhesion when the surface is hydrophobic. We believe that the proposed concept, which is used to investigate the biomolecule-immobilized surface combination, is important to produce new biomaterials, which are highly demanded for medical implants and tissue engineering.
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40
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Nagase K, Okano T. Thermoresponsive-polymer-based materials for temperature-modulated bioanalysis and bioseparations. J Mater Chem B 2016; 4:6381-6397. [DOI: 10.1039/c6tb01003b] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, bioseparations using thermoresponsive polymers are summarized. Thermoresponsive chromatography for separating bioactive compounds and proteins, and cell separations using thermoresponsive polymers and their properties are reviewed.
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Affiliation(s)
- Kenichi Nagase
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University
- TWIns
- Tokyo 162-8666
- Japan
| | - Teruo Okano
- Institute of Advanced Biomedical Engineering and Science
- Tokyo Women's Medical University
- TWIns
- Tokyo 162-8666
- Japan
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41
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Das S, Banik M, Chen G, Sinha S, Mukherjee R. Polyelectrolyte brushes: theory, modelling, synthesis and applications. SOFT MATTER 2015; 11:8550-83. [PMID: 26399305 DOI: 10.1039/c5sm01962a] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Polyelectrolyte (PE) brushes are a special class of polymer brushes (PBs) containing charges. Polymer chains attain "brush"-like configuration when they are grafted or get localized at an interface (solid-fluid or liquid-fluid) with sufficiently close proximity between two-adjacent grafted polymer chains - such a proximity triggers a particular nature of interaction between the adjacent polymer molecules forcing them to stretch orthogonally to the grafting interface, instead of random-coil arrangement. In this review, we discuss the theory, synthesis, and applications of PE brushes. The theoretical discussion starts with the standard scaling concepts for polymer and PE brushes; following that, we shed light on the state of the art in continuum modelling approaches for polymer and PE brushes directed towards analysis beyond the scaling calculations. A special emphasis is laid in pinpointing the cases for which the PE electrostatic effects can be de-coupled from the PE entropic and excluded volume effects; such de-coupling is necessary to appropriately probe the complicated electrostatic effects arising from pH-dependent charging of the PE brushes and the use of these effects for driving liquid and ion transport at the interfaces covered with PE brushes. We also discuss the atomistic simulation approaches for polymer and PE brushes. Next we provide a detailed review of the existing approaches for the synthesis of polymer and PE brushes on interfaces, nanoparticles, and nanochannels, including mixed brushes and patterned brushes. Finally, we discuss some of the possible applications and future developments of polymer and PE brushes grafted on a variety of interfaces.
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Affiliation(s)
- Siddhartha Das
- Department of Mechanical Engineering, University of Maryland, College Park, MD-20742, USA.
| | - Meneka Banik
- Instability and Soft Patterning Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Pin - 721302, Kharagpur, West Bengal, India
| | - Guang Chen
- Department of Mechanical Engineering, University of Maryland, College Park, MD-20742, USA.
| | - Shayandev Sinha
- Department of Mechanical Engineering, University of Maryland, College Park, MD-20742, USA.
| | - Rabibrata Mukherjee
- Instability and Soft Patterning Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Pin - 721302, Kharagpur, West Bengal, India
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42
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Kumashiro Y, Ishihara J, Umemoto T, Itoga K, Kobayashi J, Shimizu T, Yamato M, Okano T. Stripe-patterned thermo-responsive cell culture dish for cell separation without cell labeling. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:681-687. [PMID: 25238273 DOI: 10.1002/smll.201400787] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 08/11/2014] [Indexed: 06/03/2023]
Abstract
A stripe-patterned thermo-responsive surface is prepared to enable cell separation without labeling. The thermo-responsive surface containing a 3 μm striped pattern exhibits various cell adhesion and detachment properties. A mixture of three cell types is separated on the patterned surface based on their distinct cell-adhesion properties, and the composition of the cells is analyzed by flow cytometry.
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Affiliation(s)
- Yoshikazu Kumashiro
- Institute of Advanced Biomedical Engineering and Science (TWIns), Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan
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43
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Nagase K, Hatakeyama Y, Shimizu T, Matsuura K, Yamato M, Takeda N, Okano T. Thermoresponsive Cationic Copolymer Brushes for Mesenchymal Stem Cell Separation. Biomacromolecules 2015; 16:532-40. [DOI: 10.1021/bm501591s] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kenichi Nagase
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University (TWIns), 8-1 Kawadacho, Shinjuku,
Tokyo 162-8666, Japan
| | - Yuri Hatakeyama
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University (TWIns), 8-1 Kawadacho, Shinjuku,
Tokyo 162-8666, Japan
- Department
of Life Science and Medical Bioscience, School of Advanced Science
and Engineering, Waseda University (TWIns), 2-2 Wakamatsucho, Shinjuku, Tokyo 162-8480, Japan
| | - Tatsuya Shimizu
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University (TWIns), 8-1 Kawadacho, Shinjuku,
Tokyo 162-8666, Japan
| | - Katsuhisa Matsuura
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University (TWIns), 8-1 Kawadacho, Shinjuku,
Tokyo 162-8666, Japan
| | - Masayuki Yamato
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University (TWIns), 8-1 Kawadacho, Shinjuku,
Tokyo 162-8666, Japan
| | - Naoya Takeda
- Department
of Life Science and Medical Bioscience, School of Advanced Science
and Engineering, Waseda University (TWIns), 2-2 Wakamatsucho, Shinjuku, Tokyo 162-8480, Japan
| | - Teruo Okano
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University (TWIns), 8-1 Kawadacho, Shinjuku,
Tokyo 162-8666, Japan
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44
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Kamimura M, Scheideler O, Shimizu Y, Yamamoto S, Yamaguchi K, Nakanishi J. Facile preparation of a photoactivatable surface on a 96-well plate: a versatile and multiplex cell migration assay platform. Phys Chem Chem Phys 2015; 17:14159-67. [DOI: 10.1039/c5cp01499a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel photoactivatable 96-well plate based on photocleavable PEG and poly-d-lysine serves as a useful high-throughput cell migration assay platform.
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Affiliation(s)
- Masao Kamimura
- World Premier International (WPI) Research Center Initiative
- International Center for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
| | - Olivia Scheideler
- World Premier International (WPI) Research Center Initiative
- International Center for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
| | - Yoshihisa Shimizu
- World Premier International (WPI) Research Center Initiative
- International Center for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
| | - Shota Yamamoto
- Department of Chemistry
- Faculty of Science
- Research Institute for Photofunctionalized Materials
- Kanagawa University
- Hiratsuka
| | - Kazuo Yamaguchi
- Department of Chemistry
- Faculty of Science
- Research Institute for Photofunctionalized Materials
- Kanagawa University
- Hiratsuka
| | - Jun Nakanishi
- World Premier International (WPI) Research Center Initiative
- International Center for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
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45
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Krishnamoorthy M, Hakobyan S, Ramstedt M, Gautrot JE. Surface-initiated polymer brushes in the biomedical field: applications in membrane science, biosensing, cell culture, regenerative medicine and antibacterial coatings. Chem Rev 2014; 114:10976-1026. [PMID: 25353708 DOI: 10.1021/cr500252u] [Citation(s) in RCA: 393] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mahentha Krishnamoorthy
- Institute of Bioengineering and ‡School of Engineering and Materials Science, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
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46
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Nagase K, Kobayashi J, Kikuchi A, Akiyama Y, Kanazawa H, Okano T. Thermoresponsive Anionic Copolymer Brushes Containing Strong Acid Moieties for Effective Separation of Basic Biomolecules and Proteins. Biomacromolecules 2014; 15:3846-58. [DOI: 10.1021/bm5012163] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kenichi Nagase
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan
| | - Jun Kobayashi
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan
| | - Akihiko Kikuchi
- Department
of Materials Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika, Tokyo 125-8585, Japan
| | - Yoshikatsu Akiyama
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan
| | - Hideko Kanazawa
- Faculty
of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato, Tokyo 105-8512, Japan
| | - Teruo Okano
- Institute
of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, TWIns, 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan
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47
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Matsuura K, Utoh R, Nagase K, Okano T. Cell sheet approach for tissue engineering and regenerative medicine. J Control Release 2014; 190:228-39. [DOI: 10.1016/j.jconrel.2014.05.024] [Citation(s) in RCA: 162] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/10/2014] [Accepted: 05/13/2014] [Indexed: 01/06/2023]
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48
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Lee YB, Jun I, Bak S, Shin YM, Lim YM, Park H, Shin H. Reconstruction of vascular structure with multicellular components using cell transfer printing methods. Adv Healthc Mater 2014; 3:1465-74. [PMID: 24610737 DOI: 10.1002/adhm.201300548] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 02/12/2014] [Indexed: 12/23/2022]
Abstract
Natural vessel has three types of concentric cell layers that perform their specific functions. Here, the fabrication of vascular structure is reported by transfer printing of three different cell layers using thermosensitive hydrogels. Tetronic-tyramine and RGD peptide are co-crosslinked to prepare cell adhesive and thermosensitive hydrogels. The hydrogel increases its diameter by 1.26 times when the temperature reduces from 37 °C to 4 °C. At optimized seeding density, three types of cells form monolayers on the hydrogel, which is then transferred to the target surface within 3 min. Three monolayers are simultaneously transferred on one substrate with controlled shape and arrangement. The same approach is applied onto nanofiber scaffolds that are cultured for more than 5 d. Every type of monolayer shows proliferation and migration on nanofiber scaffolds, and the formation of robust cell-cell contact is revealed by CD31 staining in endothelial cell layer. A vascular structure with multicellular components is fabricated by transfer of three monolayers on nanofibers that are manually rolled with the diameter and length of the tube being approximately 3 mm and 12 mm, respectively. Collectively, it is concluded that the tissue transfer printing is a useful tool for constructing a vascular structure and mimicking natural structure of different types of tissues.
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Affiliation(s)
- Yu Bin Lee
- Department of Bioengineering; Hanyang University; 17 Haengdang-dong Seongdong-gu, Seoul 133-791 Republic of Korea
| | - Indong Jun
- Department of Bioengineering; Hanyang University; 17 Haengdang-dong Seongdong-gu, Seoul 133-791 Republic of Korea
| | - Seongwoo Bak
- Department of Bioengineering; Hanyang University; 17 Haengdang-dong Seongdong-gu, Seoul 133-791 Republic of Korea
| | - Young Min Shin
- Research Division for Industry & Environment; Advanced Radiation Technology Institute; Korea Atomic Energy Research Institute; Jeongeup 580-185 Republic of Korea
| | - Youn-Mook Lim
- Research Division for Industry & Environment; Advanced Radiation Technology Institute; Korea Atomic Energy Research Institute; Jeongeup 580-185 Republic of Korea
| | - Hansoo Park
- School of Integrative Engineering; Chung-Ang University; 84 Heukseok-Ro Dongjakgu, Seoul Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering; Hanyang University; 17 Haengdang-dong Seongdong-gu, Seoul 133-791 Republic of Korea
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Moroni L, Klein Gunnewiek M, Benetti EM. Polymer brush coatings regulating cell behavior: passive interfaces turn into active. Acta Biomater 2014; 10:2367-78. [PMID: 24607856 DOI: 10.1016/j.actbio.2014.02.048] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/20/2014] [Accepted: 02/25/2014] [Indexed: 11/17/2022]
Abstract
Material technology platforms able to modulate the communication with cells at the interface of biomaterials are being increasingly experimented. Progress in the fabrication of supports is simultaneously introducing new surface modification strategies aimed at turning these supports from passive to active components in engineered preparations. Among these platforms, polymer brushes are arising not only as coatings determining the physical and (bio)chemical surface properties of biomaterials, but also as smart linkers between surfaces and biological cues. Their peculiar properties, especially when brushes are synthesized by "grafting-from" methods, enable closer mimicking of the complex and heterogeneous biological microenvironments. Inspired by the growing interest in this field of materials science, we summarize here the most prominent and recent advances in the synthesis of "grafted-from" polymer brush surfaces to modulate the response of adhering cells.
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Affiliation(s)
- Lorenzo Moroni
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands; Department of Complex Tissue Regeneration, Faculty of Health, Medicine and Life Sciences, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Michel Klein Gunnewiek
- Department of Materials Science and Technology of Polymers, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Edmondo M Benetti
- Department of Materials Science and Technology of Polymers, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands; Laboratory for Surface Science and Technology, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland.
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Synthesis and optimization of fluorescent poly(N-isopropyl acrylamide)-coated surfaces by atom transfer radical polymerization for cell culture and detachment. Biointerphases 2014; 10:019001. [PMID: 25708629 DOI: 10.1116/1.4894530] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Although there are many stimulus-responsive polymers, poly(N-isopropyl acrylamide) (pNIPAM) is of special interest due to the phase change it undergoes in a physiologically relevant temperature range that leads to the release of cells and proteins. The nondestructive release of cells opens up a wide range of applications, including the use of pNIPAM for cell sheet and tissue engineering. In this work, pNIPAM surfaces were generated that can be distinguished from the extracellular matrix. A polymerization technique was adapted that was previously used by Mendez, and the existing protocol was optimized for the culture of mammalian cells. The resulting surfaces were characterized with X-ray photoelectron spectroscopy and goniometry. The developed pNIPAM surfaces were further adapted by incorporation of 5-acrylamidofluorescein to generate fluorescent pNIPAM-coated surfaces. Both types of surfaces (fluorescent and nonfluorescent) sustained cellular attachment and produced cellular detachment of ∼90%, and are therefore suitable for the generation of cell sheets for engineered tissues and other purposes. These surfaces will be useful tools for experiments investigating cellular detachment from pNIPAM and the pNIPAM/cell interface.
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