1
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Shapira-Furman T, Domb AJ. Insulin Extended Release from PLA-PEG Stereocomplex Nanoparticles. Macromol Biosci 2024; 24:e2300497. [PMID: 38029318 DOI: 10.1002/mabi.202300497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Indexed: 12/01/2023]
Abstract
This report addresses the challenges of controlled drug delivery for peptide and protein therapeutics by introducing a novel approach of nano formulation fabricated in aqueous media applying stereo-interaction mechanism with poly(D-lactide)-polyethylene glycol (D-PLA-PEG). To overcome the inherent poor stability of peptide and protein therapeutics, stereocomplexation of the peptide, insulin, is applied, onto D-PLA-PEG in aqueous media. Nanoparticles of ≈400 nm are spontaneously formed when water-soluble D configured PLA-PEG diblock copolymer and L- configured insulin interlock into a stereocomplex, owing to their concave convex fitness. In vitro release of insulin from stereocomplex in phosphate buffer solution (PBS) pH 7.4 solution shows sustained release for 14 weeks. The therapeutic efficacy of the PLA-insulin stereocomplex nanoparticles are evaluated in diabetic Akita mice. Blood glucose levels and body weight are closely monitored for a period of 17 weeks, revealing a significant reduction in glucose levels of the Akita mice treated with insulin stereocomplex, as well as normal body weight gain. These findings suggest that the stereocomplex nanoparticles of insulin-D-PLA-PEG present a promising and effective sustained and extended release platform for insulin. Notably, the use of water-soluble D-PLA-PEG for stereocomplexation in water expands the applicability of this approach to fabricate controlled delivery systems for peptide and protein therapeutics.
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Affiliation(s)
- Tovi Shapira-Furman
- The Hebrew University of Jerusalem, Faculty of Medicine, School of Pharmacy, Jerusalem, 91120, Israel
| | - Abraham J Domb
- The Hebrew University of Jerusalem, Faculty of Medicine, School of Pharmacy, Jerusalem, 91120, Israel
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2
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Saklani R, Domb AJ. Peptide and Protein Stereocomplexes. ACS OMEGA 2024; 9:17726-17740. [PMID: 38680378 PMCID: PMC11044247 DOI: 10.1021/acsomega.4c00178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/04/2024] [Accepted: 03/20/2024] [Indexed: 05/01/2024]
Abstract
Stereocomplexation in peptides and proteins is a fascinating phenomenon arising from their inherent stereoisomerism. Peptides and proteins, with their three-dimensional helical structures, exhibit stereoselectivity and form intertwined complexes when complementary left- and right-handed structures are mixed together. Stereocomplexation provides an unprecedented opportunity to impart some valuable biological, chemical, and physical properties in peptide and protein polymeric platforms that can be employed in various applications such as catalysis and drug delivery and to improve the stability of these therapeutics. However, exploration of stereocomplexation in peptides and proteins remains limited. We report on a comprehensive understanding of stereocomplexation in peptides and proteins, compiling existing reports, discussing its implications, and highlighting its role in different applications, aiming to inspire further research and advancements in this direction.
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Affiliation(s)
- Ravi Saklani
- School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Abraham J. Domb
- School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
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3
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Rahman MM, Abosheasha MA, Ito Y, Ueda M. DNA-induced fusion between lipid domains of peptide-lipid hybrid vesicles. Chem Commun (Camb) 2022; 58:11799-11802. [PMID: 36172842 DOI: 10.1039/d2cc03997d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Peptide-lipid hybrid vesicles were prepared with complementary DNA strands in their lipid domains. Hybridization of the complementary DNA strands induced the controlled fusion of the vesicles during repeated heating and cooling cycles. Vesicle fusion was indicated by a decrease in the efficiency of Förster resonance energy transfer between lipid-localized probes (from 72 to 42%) and transmission electron microscopy analysis. We suggest that this approach is a general strategy for the creation of polymersomes with membrane-fusion functionality.
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Affiliation(s)
- Md Mofizur Rahman
- RIKEN Cluster for Pioneering Research (CPR), Wako, Saitama 351-0198, Japan. .,Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Daffodil Smart City, Ashulia, Dhaka 1341, Bangladesh.,Department of Biomedical Engineering, Binghamton University, Binghamton, NY, 13902, USA
| | - Mohammed A Abosheasha
- RIKEN Cluster for Pioneering Research (CPR), Wako, Saitama 351-0198, Japan. .,Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Yoshihiro Ito
- RIKEN Cluster for Pioneering Research (CPR), Wako, Saitama 351-0198, Japan. .,Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
| | - Motoki Ueda
- RIKEN Cluster for Pioneering Research (CPR), Wako, Saitama 351-0198, Japan. .,RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
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4
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Abosheasha MA, Itagaki T, Ito Y, Ueda M. Tubular Assembly Formation Induced by Leucine Alignment along the Hydrophobic Helix of Amphiphilic Polypeptides. Int J Mol Sci 2021; 22:ijms222112075. [PMID: 34769498 PMCID: PMC8584449 DOI: 10.3390/ijms222112075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/01/2021] [Accepted: 11/05/2021] [Indexed: 01/01/2023] Open
Abstract
The introduction of α-helical structure with a specific helix-helix interaction into an amphipathic molecule enables the determination of the molecular packing in the assembly and the morphological control of peptide assemblies. We previously reported that the amphiphilic polypeptide SL12 with a polysarcosine (PSar) hydrophilic chain and hydrophobic α-helix (l-Leu-Aib)6 involving the LxxxLxxxL sequence, which induces homo-dimerization due to the concave-convex interaction, formed a nanotube with a uniform 80 nm diameter. In this study, we investigated the importance of the LxxxLxxxL sequence for tube formation by comparing amphiphilic polypeptide SL4A4L4 with hydrophobic α-helix (l-Leu-Aib)2-(l-Ala-Aib)2-(l-Leu-Aib)2 and SL12. SL4A4L4 formed spherical vesicles and micelles. The effect of the LxxxLxxxL sequence elongation on tube formation was demonstrated by studying assemblies of PSar-b-(l-Ala-Aib)-(l-Leu-Aib)6-(l-Ala-Aib) (SA2L12A2) and PSar-b-(l-Leu-Aib)8 (SL16). SA2L12A2 formed nanotubes with a uniform 123 nm diameter, while SL16 assembled into vesicles. These results showed that LxxxLxxxL is a necessary and sufficient sequence for the self-assembly of nanotubes. Furthermore, we fabricated a double-layer nanotube by combining two kinds of nanotubes with 80 and 120 nm diameters-SL12 and SA2L12A2. When SA2L12A2 self-assembled in SL12 nanotube dispersion, SA2L12A2 initially formed a rolled sheet, the sheet then wrapped the SL12 nanotube, and a double-layer nanotube was obtained.
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Affiliation(s)
- Mohammed A. Abosheasha
- RIKEN Cluster for Pioneering Research (CPR), Wako 351-0198, Saitama, Japan; (M.A.A.); (T.I.); (Y.I.)
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Hachioji 192-0397, Tokyo, Japan
| | - Toru Itagaki
- RIKEN Cluster for Pioneering Research (CPR), Wako 351-0198, Saitama, Japan; (M.A.A.); (T.I.); (Y.I.)
| | - Yoshihiro Ito
- RIKEN Cluster for Pioneering Research (CPR), Wako 351-0198, Saitama, Japan; (M.A.A.); (T.I.); (Y.I.)
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Hachioji 192-0397, Tokyo, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Saitama, Japan
| | - Motoki Ueda
- RIKEN Cluster for Pioneering Research (CPR), Wako 351-0198, Saitama, Japan; (M.A.A.); (T.I.); (Y.I.)
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Saitama, Japan
- Correspondence:
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5
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Fujita S, Tsuchiya K, Numata K. All-Peptide-Based Polyion Complex Vesicles: Facile Preparation and Encapsulation of the Protein in Active Form. ACS POLYMERS AU 2021; 1:30-38. [PMID: 36855555 PMCID: PMC9954412 DOI: 10.1021/acspolymersau.1c00008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The polyion complex vesicle (PICsome) is a promising platform for bioactive molecule delivery as well as nanoreactor systems. In addition to anionic and cationic charged blocks, a hydrophilic poly(ethylene glycol) (PEG) block is mostly employed for PICsome formation; however, the long-term safety of the PEG component in vivo is yet to be clarified. In this study, we developed novel PEG-free PICsome comprising all peptide components. Instead of the PEG block, we selected the sarcosine (Sar) oligomer as a hydrophilic block and fused it with anionic oligo(l-glutamic acid). Mixing the Sar-containing anionic peptide with cationic oligo(l-lysine) resulted in the formation of stable vesicles. The peptide-based PICsome was able to encapsulate a model protein in its hollow structure. After modification of the surface with a cell-penetrating peptide, the protein-encapsulated PICsome was successfully delivered into plant cells, indicating its promised for application as a biocompatible carrier for protein delivery.
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Affiliation(s)
- Seiya Fujita
- Department
of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kousuke Tsuchiya
- Department
of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan,
| | - Keiji Numata
- Department
of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan,Biomacromolecules
Research Team, RIKEN Center for Sustainable
Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan,
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6
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7
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Itagaki T, Nobe W, Uji H, Kimura S. Osmotic-shock-resistant Vesicle Comprising Interdigitated Monolayer of Block Polypeptides. CHEM LETT 2018. [DOI: 10.1246/cl.180168] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Toru Itagaki
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Wakana Nobe
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hirotaka Uji
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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8
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Chan BA, Xuan S, Li A, Simpson JM, Sternhagen GL, Yu T, Darvish OA, Jiang N, Zhang D. Polypeptoid polymers: Synthesis, characterization, and properties. Biopolymers 2017; 109. [DOI: 10.1002/bip.23070] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/13/2017] [Accepted: 09/20/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Brandon A. Chan
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Sunting Xuan
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Ang Li
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Jessica M. Simpson
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Garrett L. Sternhagen
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Tianyi Yu
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Omead A. Darvish
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Naisheng Jiang
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
| | - Donghui Zhang
- Department of Chemistry and Macromolecular Studies GroupLouisiana State UniversityBaton Rouge70803Los Angeles
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9
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Kim CJ, Ueda M, Imai T, Sugiyama J, Kimura S. Tuning the Viscoelasticity of Peptide Vesicles by Adjusting Hydrophobic Helical Blocks Comprising Amphiphilic Polypeptides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5423-5429. [PMID: 28493724 DOI: 10.1021/acs.langmuir.7b00289] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Amphiphilic block polypeptides of poly(sarcosine)-b-(l-Val-Aib)6 and poly(sarcosine)-b-(l-Leu-Aib)6 and their stereoisomers were self-assembled in water. Three kinds of binary systems of poly(sarcosine)-b-(l-Leu-Aib)6 with poly(sarcosine)-b-poly(d-Leu-Aib)6, poly(sarcosine)-b-poly(l-Val-Aib)6, or poly(sarcosine)-b-(d-Val-Aib)6 generated vesicles of ca. 200 nm diameter. The viscoelasticity of the vesicle membranes was evaluated by the nanoindentation method using AFM in water. The elasticity of the poly(sarcosine)-b-(l-Leu-Aib)6/poly(sarcosine)-b-poly(d-Leu-Aib)6 vesicle was 11-fold higher than that of the egg yolk liposome but decreased in combinations of the Leu- and Val-based amphiphilic polypeptides. The membrane elasticity is found to be adjustable by a suitable combination of helical blocks in terms of stereocomplex formation and the interdigitation of side chains among helices in the molecular assemblies.
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Affiliation(s)
- Cheol Joo Kim
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University , Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Motoki Ueda
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University , Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Tomoya Imai
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Junji Sugiyama
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University , Uji, Kyoto 611-0011, Japan
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University , Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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10
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Kim CJ, Kurauchi S, Uebayashi T, Fujisaki A, Kimura S. Morphology Change from Nanotube to Vesicle and Monolayer/Bilayer Alteration by Amphiphilic Block Polypeptides Having Aromatic Groups at C Terminal. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170044] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Cheol Joo Kim
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
| | - Saki Kurauchi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
| | - Tsuguaki Uebayashi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
| | - Ai Fujisaki
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510
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11
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Watabe N, Joo Kim C, Kimura S. Fusion and fission of molecular assemblies of amphiphilic polypeptides generating small vesicles from nanotubes. Pept Sci (Hoboken) 2017; 108. [DOI: 10.1002/bip.22903] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/08/2016] [Accepted: 06/25/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Naoki Watabe
- Department of Material Chemistry, Graduate School of EngineeringKyoto University, Kyoto‐Daigaku‐KatsuraNishikyo‐Ku Kyoto615‐8510 Japan
| | - Cheol Joo Kim
- Department of Material Chemistry, Graduate School of EngineeringKyoto University, Kyoto‐Daigaku‐KatsuraNishikyo‐Ku Kyoto615‐8510 Japan
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of EngineeringKyoto University, Kyoto‐Daigaku‐KatsuraNishikyo‐Ku Kyoto615‐8510 Japan
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12
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Ueda M, Müller S, Seo S, Rahman MM, Ito Y. Integrated Nanostructures Based on Self-Assembled Amphiphilic Polypeptides. ACS SYMPOSIUM SERIES 2017. [DOI: 10.1021/bk-2017-1252.ch002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Motoki Ueda
- Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Stefan Müller
- Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Siyoong Seo
- Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Md. Mofizur Rahman
- Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Yoshihiro Ito
- Nano Medical Engineering Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
- Emergent Bioengineering Materials Research Team, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
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13
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Gangloff N, Ulbricht J, Lorson T, Schlaad H, Luxenhofer R. Peptoids and Polypeptoids at the Frontier of Supra- and Macromolecular Engineering. Chem Rev 2015; 116:1753-802. [DOI: 10.1021/acs.chemrev.5b00201] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Niklas Gangloff
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Juliane Ulbricht
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Thomas Lorson
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Helmut Schlaad
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Robert Luxenhofer
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
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14
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Matsui H, Ueda M, Hara I, Kimura S. Precise control of nanoparticle surface by host–guest chemistry for delivery to tumor. RSC Adv 2015. [DOI: 10.1039/c5ra01685a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A nanocarrier with a diameter less than 30 nm was prepared here by using host–guest chemistry. A defined number of functionalized guests was incorporated in the nanocarrier, which was a nice tumor imaging probe without showing the ABC phenomenon.
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Affiliation(s)
- Hisato Matsui
- Department of Material Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto
- Japan
| | - Motoki Ueda
- Clinical Division of Diagnostic Radiology
- Kyoto University Hospital
- Kyoto
- Japan
| | - Isao Hara
- Technology Research Laboratory
- Shimadzu Corporation
- Kyoto 619-0237
- Japan
| | - Shunsaku Kimura
- Department of Material Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto
- Japan
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15
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Wu W, Cui S, Li Z, Liu J, Wang H, Wang X, Zhang Q, Wu H, Guo K. Mild Brønsted acid initiated controlled polymerizations of 2-oxazoline towards one-pot synthesis of novel double-hydrophilic poly(2-ethyl-2-oxazoline)-block-poly(sarcosine). Polym Chem 2015. [DOI: 10.1039/c5py00256g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mild Brønsted acid initiator in polymerizations of 2-oxazoline was firstly reported as a workable protocol in the ROPs and BCPs.
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Affiliation(s)
- Wenzhuo Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Saide Cui
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhenjiang Li
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Jingjing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Huiying Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Xin Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Qiguo Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Hao Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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16
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Ueda M, Uesaka A, Kimura S. Selective disruption of each part of Janus molecular assemblies by lateral diffusion of stimuli-responsive amphiphilic peptides. Chem Commun (Camb) 2015; 51:1601-4. [DOI: 10.1039/c4cc08686d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stimuli-responsive Janus-type assemblies with a round-bottom flask shape are prepared from amphiphilic helical peptides using the patchwork self-assembly technique.
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Affiliation(s)
- Motoki Ueda
- Clinical Division of Diagnostic Radiology
- Kyoto University Hospital
- Kyoto
- Japan
| | - Akihiro Uesaka
- Department of Material Chemistry
- Graduate School of Engineering
- Kyoto University Kyoto-Daigaku-Katsura
- Kyoto
- Japan
| | - Shunsaku Kimura
- Department of Material Chemistry
- Graduate School of Engineering
- Kyoto University Kyoto-Daigaku-Katsura
- Kyoto
- Japan
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17
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Sharma GVM, Ravindranath H, Bhaskar A, Jeelani Basha S, Gurava Reddy PRG, Sirisha K, Sarma AVS, Hofmann HJ. Design and Study of Peptides Containing 1:1 Left- and Right-Handed Helical Patterns from Aminopyrancarboxylic Acids. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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Makino A, Hara E, Hara I, Ozeki E, Kimura S. Size control of core-shell-type polymeric micelle with a nanometer precision. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:669-674. [PMID: 24372167 DOI: 10.1021/la404488n] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Amphiphilic polydepsipeptides having a hydrophobic poly(L-lactic acid) block and varying numbers of a hydrophilic poly(sarcosine) block ranging from 1 to 3, AB-, A2B-, and A3B-type, were prepared and studied on their molecular assemblies. The morphologies were found to be polymeric micelles for the AB- and the A3B-type polydepsipeptides, but worm-like micelles for the A2B-type polydepsipeptide. The hydrodynamic diameter of the A3B-type polydepsipeptide (22 nm) became smaller than the AB-type polydepsipeptide (34 nm). The polymeric micelle sizes composed of the AB-type polydepsipeptide were adjustable up to ca. 100 nm with incorporation of poly(L-lactic acid) into the hydrophobic core. On the other hand, with varying mixing ratio of the AB-type and A3B-type polydepsipeptides, the hydrodynamic diameters were tunable to become smaller sizes with a precise control in the range from 22 to 34 nm. The polydispersity indices of the polymeric micelles were less than 0.1, indicating that we can obtain the homogeneous polymeric micelles with diameters in the range from 20 to 100 nm under a precise control.
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Affiliation(s)
- Akira Makino
- Biomedical Imaging Research Center, University of Fukui , 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui 910-1193, Japan
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Versatile peptide rafts for conjugate morphologies by self-assembling amphiphilic helical peptides. Polym J 2013. [DOI: 10.1038/pj.2013.4] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Control of in vivo blood clearance time of polymeric micelle by stereochemistry of amphiphilic polydepsipeptides. J Control Release 2012; 161:821-5. [PMID: 22580110 DOI: 10.1016/j.jconrel.2012.05.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 04/26/2012] [Accepted: 05/02/2012] [Indexed: 10/28/2022]
Abstract
Polymeric micelle, "Lactosome", is composed of amphiphilic polydepsipeptide with a hydrophobic block of helical poly(L-lactic acid) (PLLA) and a hydrophilic block of poly(sarcosine). Lactosome was labeled by incorporation of poly(lactic acid) having a near-infrared fluorescence (NIRF) chromophore, and studied on blood clearance and tumor imaging. In vivo blood clearance time of Lactosome was prolonged with incorporation of poly(D-lactic acid) (PDLA), but decreased with poly(D,L-lactic acid) (PDLLA). NIRF imaging with applying these Lactosomes to tumor-bearing mice revealed that the tumor/background intensity ratio increased with incorporation of PDLLA. Stereochemistry in the hydrophobic core of self-assemblies is thus an important factor for determining physical stability in the blood stream and consequently contrast in imaging.
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Uesaka A, Ueda M, Makino A, Imai T, Sugiyama J, Kimura S. Self-assemblies of triskelion A2B-type amphiphilic polypeptide showing pH-responsive morphology transformation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:6006-6012. [PMID: 22440231 DOI: 10.1021/la3004867] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A pH-responsive rolled-sheet morphology was prepared from a triskelion A(2)B-type amphiphilic polypeptide having a histidine residue as a pH-responsive unit. The dimensions of the rolled sheet were 85 nm diameter and 210 nm length with a sheet turn number of 2.0 at pH 7.4. Upon decreasing the pH from 7.4 to 5.0, the layer spacing of the rolled sheets was widened from ca. 9 to ca. 19 nm due to electrostatic repulsion caused by histidine protonation. This morphology change occurred reversibly with a pH change between 7.4 and 5.0. The molecular packing in the rolled sheets was shown to be loosened at pH 5.0 on the basis of electron diffraction measurements. The tightness of the rolled sheets was thus controlled reversibly by a pH change due to a single protonation in the amphiphilic polypeptide.
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Affiliation(s)
- Akihiro Uesaka
- Department of Material of Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Kyoto 615-8510, Japan
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