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He F, Chai Y, Zeng Z, Lu F, Chen H, Zhu J, Fang Y, Cheng K, Miclet E, Alezra V, Wan Y. Rapid Formation of Intramolecular Disulfide Bridges using Light: An Efficient Method to Control the Conformation and Function of Bioactive Peptides. J Am Chem Soc 2023; 145:22639-22648. [PMID: 37788450 DOI: 10.1021/jacs.3c07795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Disulfide bonds are widely found in natural peptides and play a pivotal role in stabilizing their secondary structures, which are highly associated with their biological functions. Herein, we introduce a light-mediated strategy to effectively control the formation of disulfides. Our strategy is based on 2-nitroveratryl (oNv), a widely used photolabile motif, which serves both as a photocaging group and an oxidant (after photolysis). We demonstrated that irradiation of oNv-caged thiols with UV light could release free thiols that are rapidly oxidized by locally released byproduct nitrosoarene, leading to a "break-to-bond" fashion. This strategy is highlighted by the in situ restoration of the antimicrobial peptide tachyplesin I (TPI) from its external disulfide-caged analogue TPI-1. TPI-1 exhibits a distorted structure and a diminished function. However, upon irradiation, the β-hairpin structure and membrane activity of TPI were largely restored via rapid intramolecular disulfide formation. Our study proposes a powerful method to regulate the conformation and function of peptides in a spatiotemporal manner, which has significant potential for the design of disulfide-centered light-responsive systems.
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Affiliation(s)
- Feng He
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Yu Chai
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Zizhen Zeng
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Fangling Lu
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Huanwen Chen
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Jinhua Zhu
- Institute of TCM, Jiangxi University of Chinese Medicine, Nanchang 330004, P. R. China
| | - Yuanying Fang
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
| | - Keguang Cheng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, P. R. China
| | - Emeric Miclet
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Valérie Alezra
- Laboratoire de Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO, Université Paris-Saclay, Orsay 91400, France
| | - Yang Wan
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang 330006, P. R. China
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Lee YB, Kim SJ, Kim EM, Byun H, Shin H. Harvest of Cell-Only Muscle Fibers Using Thermally Expandable Hydrogels with Adhesive Patterns. Tissue Eng Part C Methods 2023; 29:447-458. [PMID: 37440328 DOI: 10.1089/ten.tec.2023.0096] [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] [Indexed: 07/15/2023] Open
Abstract
Muscle tissue engineering has been the focus of extensive research due to its potential for numerous medical applications, including ex vivo actuator development and clinical treatments. In this study, we developed a method for harvesting muscle fiber in a floatable and translocatable manner utilizing thermally expandable hydrogels with a chemically patterned polydopamine (PD) layer generated by microcontact printing (μCP). The μCP of PD on the hydrogel facilitated the formation of stripe patterns with varying widths of printed/nonprinted area (50/50, 100/100, and 200/200 μm). The spatially controlled adhesion of C2C12 myoblasts on the PD patterns produced clearly distinguishable muscle fibers, and translocated muscle fibers exhibited preserved extracellular matrix and junction proteins. Furthermore, the development of anisotropic arrangements and mature myotubes within the fibers suggests the potential for functional control of engineered muscle tissues. Overall, the muscle fiber harvesting method developed herein is suitable for both translocation and floating and is a promising technique for muscle tissue engineering as it mimics the structure-function relationship of natural tissue.
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Affiliation(s)
- Yu Bin Lee
- Department of Advanced Toxicology Research, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Se-Jeong Kim
- Department of Bioengineering, Hanyang University, Seongdong-gu, Seoul, Republic of Korea
| | - Eun Mi Kim
- Department of Bioengineering, Hanyang University, Seongdong-gu, Seoul, Republic of Korea
| | - Hayeon Byun
- Department of Bioengineering, Hanyang University, Seongdong-gu, Seoul, Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, Seongdong-gu, Seoul, Republic of Korea
- BK21 FOUR, Education and Research Group for Biopharmaceutical Innovation Leader, Hanyang University, Seongdong-gu, Seoul, Republic of Korea
- Institute of Nano Science & Technology (INST), Hanyang University, Seongdong-gu, Seoul, Republic of Korea
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Porras Hernández AM, Tenje M, Antfolk M. Cell chirality exhibition of brain microvascular endothelial cells is dependent on micropattern width. RSC Adv 2022; 12:30135-30144. [PMID: 36329947 PMCID: PMC9585451 DOI: 10.1039/d2ra05434e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/14/2022] [Indexed: 11/07/2022] Open
Abstract
Left-right asymmetry is a conserved property in nature and observed in the human body, a property known as cell chirality. Cell chirality is often studied using micropatterned in vitro models. However, micropattern geometry and size often varies across different studies, making it challenging to compare results. Here, we utilized micropatterned RGD-peptide lines on hyaluronic acid hydrogels to investigate the effect of the micropattern width on the exhibited cell chirality bias of brain microvascular endothelial cells. Overall, this cell type exhibited a negative chirality bias on micropatterned lines ranging from 10 μm to 400 μm in width, where the negative bias was most pronounced on the 100 μm wide lines. We also observed that this exhibited chirality bias varied across the line width. This work serves as a guide to determine optimal micropattern width for further investigations on cell chirality bias and its prominence in e.g., disease states or upon exposure to toxic substances. Brain endothelial microvascular cell chirality is dependent on micropattern width and spatial localization. Finding the optimal micropattern width and including only the centre cells in the analysis for chirality-based experiments might improve further experimental results.![]()
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Affiliation(s)
- Ana María Porras Hernández
- Dept. of Materials Science and Engineering, Science for Life Laboratory, Uppsala University Uppsala Sweden
| | - Maria Tenje
- Dept. of Materials Science and Engineering, Science for Life Laboratory, Uppsala University Uppsala Sweden
| | - Maria Antfolk
- Dept. of Biomedical Engineering, Lund University Lund Sweden .,Biotech Research and Innovation Centre, University of Copenhagen Copenhagen Denmark
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Wanselius M, Searle S, Rodler A, Tenje M, Abrahmsén-Alami S, Hansson P. Microfluidics Platform for Studies of Peptide – Polyelectrolyte Interaction. Int J Pharm 2022; 621:121785. [DOI: 10.1016/j.ijpharm.2022.121785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/12/2022] [Accepted: 04/26/2022] [Indexed: 02/01/2023]
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Stengelin E, Thiele J, Seiffert S. Multiparametric Material Functionality of Microtissue-Based In Vitro Models as Alternatives to Animal Testing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105319. [PMID: 35043598 PMCID: PMC8981905 DOI: 10.1002/advs.202105319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Indexed: 05/12/2023]
Abstract
With the definition of the 3R principle by Russel and Burch in 1959, the search for an adequate substitute for animal testing has become one of the most important tasks and challenges of this time, not only from an ethical, but also from a scientific, economic, and legal point of view. Microtissue-based in vitro model systems offer a valuable approach to address this issue by accounting for the complexity of natural tissues in a simplified manner. To increase the functionality of these model systems and thus make their use as a substitute for animal testing more likely in the future, the fundamentals need to be continuously improved. Corresponding requirements exist in the development of multifunctional, hydrogel-based materials, whose properties are considered in this review under the aspects of processability, adaptivity, biocompatibility, and stability/degradability.
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Affiliation(s)
- Elena Stengelin
- Department of ChemistryJohannes Gutenberg‐University MainzD‐55128MainzGermany
| | - Julian Thiele
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Straße 6D‐01069DresdenGermany
| | - Sebastian Seiffert
- Department of ChemistryJohannes Gutenberg‐University MainzD‐55128MainzGermany
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Porras Hernández AM, Barbe L, Pohlit H, Tenje M, Antfolk M. Confocal imaging dataset to assess endothelial cell orientation during extreme glucose conditions. Sci Data 2022; 9:26. [PMID: 35087120 PMCID: PMC8795398 DOI: 10.1038/s41597-022-01130-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/15/2021] [Indexed: 01/10/2023] Open
Abstract
Confocal microscopy offers a mean to extract quantitative data on spatially confined subcellular structures. Here, we provide an imaging dataset of confocal z-stacks on endothelial cells spatially confined on lines with different widths, visualizing the nucleus, F-actin, and zonula occludens-1 (ZO-1), as well as the lines. This dataset also includes confocal images of spatially confined endothelial cells challenged with different glucose conditions. We have validated the image quality by established analytical means using the MeasureImageQuality module of the CellProfilerTM software. We envision that this dataset could be used to extract data on both a population and a single cell level, as well as a learning set for the development of new image analysis tools.
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Affiliation(s)
- Ana María Porras Hernández
- Department of Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Laurent Barbe
- Department of Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Hannah Pohlit
- Department of Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Maria Tenje
- Department of Materials Science and Engineering, Science for Life Laboratory, Uppsala University, Uppsala, Sweden.
| | - Maria Antfolk
- Department of Biomedical Engineering, Lund University, Lund, Sweden.
- Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark.
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Brain microvasculature endothelial cell orientation on micropatterned hydrogels is affected by glucose level variations. Sci Rep 2021; 11:19608. [PMID: 34608232 PMCID: PMC8490407 DOI: 10.1038/s41598-021-99136-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 09/06/2021] [Indexed: 01/14/2023] Open
Abstract
This work reports on an effort to decipher the alignment of brain microvasculature endothelial cells to physical constrains generated via adhesion control on hydrogel surfaces and explore the corresponding responses upon glucose level variations emulating the hypo- and hyperglycaemic effects in diabetes. We prepared hydrogels of hyaluronic acid a natural biomaterial that does not naturally support endothelial cell adhesion, and specifically functionalised RGD peptides into lines using UV-mediated linkage. The width of the lines was varied from 10 to 100 µm. We evaluated cell alignment by measuring the nuclei, cell, and F-actin orientations, and the nuclei and cell eccentricity via immunofluorescent staining and image analysis. We found that the brain microvascular endothelial cells aligned and elongated to these physical constraints for all line widths. In addition, we also observed that varying the cell medium glucose levels affected the cell alignment along the patterns. We believe our results may provide a platform for further studies on the impact of altered glucose levels in cardiovascular disease.
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