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Nishimura T, Sasaki Y, Akiyoshi K. Thermoresponsive glycopolymer vesicles: in situ observation of morphological changes and triggered cargo release. Polym J 2021. [DOI: 10.1038/s41428-021-00488-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Okuno Y, Nishimura T, Sasaki Y, Akiyoshi K. Thermoresponsive Carbohydrate- b-Polypeptoid Polymer Vesicles with Selective Solute Permeability and Permeable Factors for Solutes. Biomacromolecules 2021; 22:3099-3106. [PMID: 34165283 DOI: 10.1021/acs.biomac.1c00530] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Solute-permeable polymer vesicles are structural compartments for nanoreactors/nanofactories in the context of drug delivery and artificial cells. We previously proposed design guidelines for polymers that form solute-permeable vesicles, yet we did not provide enough experimental verification. In addition, the fact that there is no clear factor for identifying permeable solutes necessitates extensive trial and error. Herein, we report solute-permeable polymer vesicles based on an amphiphilic copolymer, thermoresponsive oligosaccharide-block-poly(N-n-propylglycine). The introduction of a thermoresponsive polymer as a hydrophobic segment into amphiphilic polymers is a viable approach to construct solute-permeable polymer vesicles. We also demonstrate that the polymer vesicles are preferentially permeable to cationic and neutral fluorophores and are hardly permeable to anionic fluorophores due to the electrostatic repulsion between the bilayer and anionic fluorophores. In addition, the permeability of neutral fluorophores increases with the increasing log P value of the fluorophores. Thus, the electrical charge and log P value are important factors for membrane permeability. These findings will help researchers develop advanced nanoreactors based on permeable vesicles for a broad range of fundamental and biomedical applications.
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Affiliation(s)
- Yota Okuno
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tomoki Nishimura
- Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Nagano 386-8567, Japan
| | - Yoshihiro Sasaki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Lin S, Wang F, Du J. High-genus multicompartment vesicles evolved from large compound micelles. Polym Chem 2021. [DOI: 10.1039/d1py00654a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
High-genus multicompartment vesicles (HGMVs) are self-assembled from block copolymers containing fluorescent and photo-responsive azobenzene groups.
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Affiliation(s)
- Sha Lin
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University
- Shanghai
- China
| | - Fangyingkai Wang
- Department of Polymeric Materials
- School of Materials Science and Engineering
- Tongji University
- Shanghai 201804
- China
| | - Jianzhong Du
- Department of Orthopedics
- Shanghai Tenth People's Hospital
- Tongji University
- Shanghai
- China
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Nishimura T, Nakamura Y, Kinoshita N, Yamamoto K, Sasaki Y, Akiyoshi K. Biocatalytic Hybrid Films Self-Assembled from Carbohydrate Block Copolymers and Polysaccharides for Enzyme Prodrug Therapy. ACS APPLIED BIO MATERIALS 2020; 3:8865-8871. [PMID: 35019562 DOI: 10.1021/acsabm.0c01174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Biocatalytic films are attracting growing attention for their significant potential as scaffolds for therapeutic reactor devices. However, conventional film fabrication methods result either in enzyme denaturation or require cumbersome procedures. Here, we report the preparation of biocatalytic films via self-assembly of a carbohydrate block copolymer and a polysaccharide. Enzyme-loaded films can be prepared by simply drying the polymer solution, and the loaded enzymes retain their biocatalytic activities in the film for prolonged periods of time. We also demonstrate that the enzyme-loaded films can successfully transform a prodrug into an antitumor drug that inhibits tumor cell growth. Our work highlights the potential of these biocatalytic self-assembled films as therapeutic reactor devices for enzyme prodrug therapy. Given the simplicity of the preparation method, this approach could improve the versatility of biocatalytic films and consequently expand their applicability from exclusive use in therapeutic reactor devices to sensing and diagnosis.
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Affiliation(s)
- Tomoki Nishimura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yusuke Nakamura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Naoya Kinoshita
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.,Department of Oral and Maxillofacial Surgery, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - Katsuhiro Yamamoto
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Yoshihiro Sasaki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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