1
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Effenberg C, Gaitzsch J. Stretched or wrinkled? Looking into the polymer conformation within polymersome membranes. SOFT MATTER 2024; 20:4127-4135. [PMID: 38726767 DOI: 10.1039/d4sm00239c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Self-assembly of amphiphilic block-copolymers into polymersomes is a well-established concept. In this membrane, the hydrophilic part is considered to be loosely assembled towards the solvent, and the hydrophobic part on the inside of the membrane is considered to be more densely packed. Within the membrane, this hydrophobic part could now have a stretched conformation or be a random coil, depending on the available space and also on the chemical nature of the polymer. We now analysed the literature for works on polymersomes that determined the membrane thickness via cryo-TEM and analysed the hydrophobic part of their polymers for their conformation. Over all available block-copolymers, a variety of trends became obvious: the longer a hydrophobic block, the more coiled the conformation and the bulkier the side chains, the more stretched the polymer became. Polymers with less conformational freedom like semi-crystalline ones were present in a more stretched conformation. Both trends could be exemplified on various occasions in this cross-literature meta-study. This overview hence provides additional insight into the physical chemistry of block-copolymer membranes.
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Affiliation(s)
| | - Jens Gaitzsch
- Leibniz-Institut für Polymerforschung Dresden e. V., Germany.
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2
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Tian F, Zhou Y, Ma Z, Tang R, Wang X. Organismal Function Enhancement through Biomaterial Intervention. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:377. [PMID: 38392750 PMCID: PMC10891834 DOI: 10.3390/nano14040377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 02/24/2024]
Abstract
Living organisms in nature, such as magnetotactic bacteria and eggs, generate various organic-inorganic hybrid materials, providing unique functionalities. Inspired by such natural hybrid materials, researchers can reasonably integrate biomaterials with living organisms either internally or externally to enhance their inherent capabilities and generate new functionalities. Currently, the approaches to enhancing organismal function through biomaterial intervention have undergone rapid development, progressing from the cellular level to the subcellular or multicellular level. In this review, we will concentrate on three key strategies related to biomaterial-guided bioenhancement, including biointerface engineering, artificial organelles, and 3D multicellular immune niches. For biointerface engineering, excess of amino acid residues on the surfaces of cells or viruses enables the assembly of materials to form versatile artificial shells, facilitating vaccine engineering and biological camouflage. Artificial organelles refer to artificial subcellular reactors made of biomaterials that persist in the cytoplasm, which imparts cells with on-demand regulatory ability. Moreover, macroscale biomaterials with spatiotemporal regulation characters enable the local recruitment and aggregation of cells, denoting multicellular niche to enhance crosstalk between cells and antigens. Collectively, harnessing the programmable chemical and biological attributes of biomaterials for organismal function enhancement shows significant potential in forthcoming biomedical applications.
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Affiliation(s)
- Fengchao Tian
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Yuemin Zhou
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Zaiqiang Ma
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Ruikang Tang
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
| | - Xiaoyu Wang
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310058, China; (F.T.); (Y.Z.)
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3
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Zhang K, Zhou Y, Moreno S, Schwarz S, Boye S, Voit B, Appelhans D. Reversible crowdedness of pH-responsive and host-guest active polymersomes: Mimicking µm-sized cell structures. J Colloid Interface Sci 2024; 654:1469-1482. [PMID: 37858368 DOI: 10.1016/j.jcis.2023.10.015] [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: 07/03/2023] [Revised: 09/15/2023] [Accepted: 10/04/2023] [Indexed: 10/21/2023]
Abstract
The structure-function characteristics of isolated artificial organelles (AOs) in protocells are mainly known, but there are few reports on clustered or aggregated AOs. To imitate µm-sized complex and heterogeneous cell structures, approaches are needed that enable reversible changes in the aggregation state of colloidal structures in response to chemical, biological, and external stimuli. To construct adaptive organelle-like or cell-like reorganization characteristics, we present an advanced crosslinking strategy to fabricate clustered polymersomes as a platform based on host-guest interactions between azobenzene-containing polymersomes (Azo-Psomes) and a β-cyclodextrin-modified polymer (β-CD polymer) as a crosslinker. First, the reversible (dis)assembly of clustered Azo-Psomes is carried out by the alternating input of crosslinker and adamantane-PEG3000 as a decrosslinker. Moreover, cluster size dependence is demonstrated by environmental pH. These offer the controlled fabrication of various homogeneous and heterogeneous Azo-Psomes structures, including the size regulation and visualization of clustered AOs through a fluorescent enzymatic cascade reaction. Finally, a temperature-sensitive crosslinking agent with β-CD units can promote the coaggregation of Azo-Psomes mediated by temperature changes. Overall, these (co-)clustered Azo-Psomes and their successful transformation in AOs may provide new features for modelling biological systems for eukaryotic cells and systems biology.
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Affiliation(s)
- Kehu Zhang
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany; Chair of Organic Chemistry of Polymers, Technische Universität Dresden, Dresden 01062, Germany
| | - Yang Zhou
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany; Chair of Organic Chemistry of Polymers, Technische Universität Dresden, Dresden 01062, Germany
| | - Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany.
| | - Simona Schwarz
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany; Chair of Organic Chemistry of Polymers, Technische Universität Dresden, Dresden 01062, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany.
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4
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Perin GB, Moreno S, Zhou Y, Günther M, Boye S, Voit B, Felisberti MI, Appelhans D. Construction of Membraneless and Multicompartmentalized Coacervate Protocells Controlling a Cell Metabolism-like Cascade Reaction. Biomacromolecules 2023; 24:5807-5822. [PMID: 37984848 DOI: 10.1021/acs.biomac.3c00828] [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: 11/22/2023]
Abstract
In recent years, there has been growing attention to designing synthetic protocells, capable of mimicking micrometric and multicompartmental structures and highly complex physicochemical and biological processes with spatiotemporal control. Controlling metabolism-like cascade reactions in coacervate protocells is still challenging since signal transduction has to be involved in sequential and parallelized actions mediated by a pH change. Herein, we report the hierarchical construction of membraneless and multicompartmentalized protocells composed of (i) a cytosol-like scaffold based on complex coacervate droplets stable under flow conditions, (ii) enzyme-active artificial organelles and a substrate nanoreservoir capable of triggering a cascade reaction between them in response to a pH increase, and (iii) a signal transduction component based on the urease enzyme capable of the conversion of an exogenous biological fuel (urea) into an endogenous signal (ammonia and pH increase). Overall, this strategy allows a synergistic communication between their components within the membraneless and multicompartment protocells and, thus, metabolism-like enzymatic cascade reactions. This signal communication is transmitted through a scaffold protocell from an "inactive state" (nonfluorescent protocell) to an "active state" (fluorescent protocell capable of consuming stored metabolites).
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Affiliation(s)
- Giovanni B Perin
- Institute of Chemistry, University of Campinas, 13083-970 Campinas, São Paulo, Brazil
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Yang Zhou
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, D-01069 Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Markus Günther
- Institute of Botany, Faculty of Biology, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, D-01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, D-01069 Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Maria I Felisberti
- Institute of Chemistry, University of Campinas, 13083-970 Campinas, São Paulo, Brazil
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden, Hohe Straße 6, D-01069 Dresden, Germany
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5
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Yu X, Mukwaya V, Mann S, Dou H. Signal Transduction in Artificial Cells. SMALL METHODS 2023; 7:e2300231. [PMID: 37116092 DOI: 10.1002/smtd.202300231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/06/2023] [Indexed: 06/19/2023]
Abstract
In recent years, significant progress has been made in the emerging field of constructing biomimetic soft compartments with life-like behaviors. Given that biological activities occur under a flux of energy and matter exchange, the implementation of rudimentary signaling pathways in artificial cells (protocells) is a prerequisite for the development of adaptive sense-response phenotypes in cytomimetic models. Herein, recent approaches to the integration of signal transduction modules in model protocells prepared by bottom-up construction are discussed. The approaches are classified into two categories involving invasive biochemical signals or non-invasive physical stimuli. In the former mechanism, transducers with intrinsic recognition capability respond with high specificity, while in the latter, artificial cells respond through intra-protocellular energy transduction. Although major challenges remain in the pursuit of a sophisticated artificial signaling network for the orchestration of higher-order cytomimetic models, significant advances have been made in establishing rudimentary protocell communication networks, providing novel organizational models for the development of life-like microsystems and new avenues in protoliving technologies.
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Affiliation(s)
- Xiaolei Yu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Zhangjiang Institute for Advanced Study (ZIAS), Shanghai Jiao Tong University, Shanghai, 201203, China
| | - Vincent Mukwaya
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Zhangjiang Institute for Advanced Study (ZIAS), Shanghai Jiao Tong University, Shanghai, 201203, China
| | - Stephen Mann
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Zhangjiang Institute for Advanced Study (ZIAS), Shanghai Jiao Tong University, Shanghai, 201203, China
- Max Planck Bristol Centre for Minimal Biology and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Hongjing Dou
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Zhangjiang Institute for Advanced Study (ZIAS), Shanghai Jiao Tong University, Shanghai, 201203, China
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6
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Xu X, Moreno S, Boye S, Wang P, Voit B, Appelhans D. Artificial Organelles with Digesting Characteristics: Imitating Simplified Lysosome- and Macrophage-Like Functions by Trypsin-Loaded Polymersomes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2207214. [PMID: 37076948 DOI: 10.1002/advs.202207214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/12/2023] [Indexed: 05/03/2023]
Abstract
Defects in cellular protein/enzyme encoding or even in organelles are responsible for many diseases. For instance, dysfunctional lysosome or macrophage activity results in the unwanted accumulation of biomolecules and pathogens implicated in autoimmune, neurodegenerative, and metabolic disorders. Enzyme replacement therapy (ERT) is a medical treatment that replaces an enzyme that is deficient or absent in the body but suffers from short lifetime of the enzymes. Here, this work proposes the fabrication of two different pH-responsive and crosslinked trypsin-loaded polymersomes as protecting enzyme carriers mimicking artificial organelles (AOs). They allow the enzymatic degradation of biomolecules to mimic simplified lysosomal function at acidic pH and macrophage functions at physiological pH. For optimal working of digesting AOs in different environments, pH and salt composition are considered the key parameters, since they define the permeability of the membrane of the polymersomes and the access of model pathogens to the loaded trypsin. Thus, this work demonstrates environmentally controlled biomolecule digestion by trypsin-loaded polymersomes also under simulated physiological fluids, allowing a prolonged therapeutic window due to protection of the enzyme in the AOs. This enables the application of AOs in the fields of biomimetic therapeutics, specifically in ERT for dysfunctional lysosomal diseases.
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Affiliation(s)
- Xiaoying Xu
- Deaprtment Bioactive and Responsive Polymers, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062, Dresden, Germany
| | - Silvia Moreno
- Deaprtment Bioactive and Responsive Polymers, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
| | - Susanne Boye
- Center Macromolecular Structure Analysis, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
| | - Peng Wang
- Deaprtment Bioactive and Responsive Polymers, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
| | - Brigitte Voit
- Deaprtment Bioactive and Responsive Polymers, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
- Organic Chemistry of Polymers, Technische Universität Dresden, D-01062, Dresden, Germany
| | - Dietmar Appelhans
- Deaprtment Bioactive and Responsive Polymers, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, D-01069, Dresden, Germany
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7
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Cao S, Ivanov T, de Souza Melchiors M, Landfester K, Caire da Silva L. Controlled Membrane Transport in Polymeric Biomimetic Nanoreactors. Chembiochem 2023; 24:e202200718. [PMID: 36715701 DOI: 10.1002/cbic.202200718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023]
Abstract
Polymersome-based biomimetic nanoreactors (PBNs) have generated great interest in nanomedicine and cell mimicry due to their robustness, tuneable chemistry, and broad applicability in biologically relevant fields. In this concept review, we mainly discuss the state of the art in functional polymersomes as biomimetic nanoreactors with membrane-controlled transport. PBNs that use environmental changes or external stimuli to adjust membrane permeability while maintaining structural integrity are highlighted. By encapsulating catalytic species, PBNs are able to convert inactive substrates into functional products in a controlled manner. In addition, special attention is paid to the use of PBNs as tailored artificial organelles with biomedical applications in vitro and in vivo, facilitating the fabrication of next-generation artificial organelles as therapeutic nanocompartments.
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Affiliation(s)
- Shoupeng Cao
- Department of Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Tsvetomir Ivanov
- Department of Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Marina de Souza Melchiors
- Department of Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Katharina Landfester
- Department of Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Lucas Caire da Silva
- Department of Physical Chemistry of Polymers, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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8
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Moreno S, Hübner H, Effenberg C, Boye S, Ramuglia A, Schmitt D, Voit B, Weidinger IM, Gallei M, Appelhans D. Redox- and pH-Responsive Polymersomes with Ferrocene Moieties Exhibiting Peroxidase-like, Chemoenzymatic Activity and H 2O 2-Responsive Release Behavior. Biomacromolecules 2022; 23:4655-4667. [PMID: 36215725 DOI: 10.1021/acs.biomac.2c00901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The development of compartments for the design of cascade reactions in a local space requires a selective spatiotemporal control. The combination of enzyme-loaded polymersomes with enzymelike units shows a great potential in further refining the diffusion barrier and the type of reactions in nanoreactors. Herein, pH-responsive and ferrocene-containing block copolymers were synthesized to realize pH-stable and multiresponsive polymersomes. Permeable membrane, peroxidase-like behavior induced by the redox-responsive ferrocene moieties and release properties were validated using cyclovoltammetry, dye TMB assay, and rupture of host-guest interactions with β-cyclodextrin, respectively. Due to the incorporation of different block copolymers, the membrane permeability of glucose oxidase-loaded polymersomes was changed by increasing extracellular glucose concentration and in TMB assay, allowing for the chemoenzymatic cascade reaction. This study presents a potent synthetic, multiresponsive nanoreactor platform with tunable (e.g., redox-responsive) membrane properties for potential application in therapeutics.
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Affiliation(s)
- Silvia Moreno
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Hanna Hübner
- Polymer Chemistry, Saarland University, Campus Saarbrücken C4 2, Saarbrücken 66123, Germany
| | - Christiane Effenberg
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Anthony Ramuglia
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany
| | - Deborah Schmitt
- Polymer Chemistry, Saarland University, Campus Saarbrücken C4 2, Saarbrücken 66123, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany.,Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany
| | - Inez M Weidinger
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Dresden 01062, Germany
| | - Markus Gallei
- Polymer Chemistry, Saarland University, Campus Saarbrücken C4 2, Saarbrücken 66123, Germany.,Saarene, Saarland Center for Energy Materials and Sustainability, Campus C4 2, Saarbrücken 66123, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
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9
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Kim H, Yeow J, Najer A, Kit‐Anan W, Wang R, Rifaie‐Graham O, Thanapongpibul C, Stevens MM. Microliter Scale Synthesis of Luciferase-Encapsulated Polymersomes as Artificial Organelles for Optogenetic Modulation of Cardiomyocyte Beating. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200239. [PMID: 35901502 PMCID: PMC9507352 DOI: 10.1002/advs.202200239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Constructing artificial systems that effectively replace or supplement natural biological machinery within cells is one of the fundamental challenges underpinning bioengineering. At the sub-cellular scale, artificial organelles (AOs) have significant potential as long-acting biomedical implants, mimicking native organelles by conducting intracellularly compartmentalized enzymatic actions. The potency of these AOs can be heightened when judiciously combined with genetic engineering, producing highly tailorable biohybrid cellular systems. Here, the authors present a cost-effective, microliter scale (10 µL) polymersome (PSome) synthesis based on polymerization-induced self-assembly for the in situ encapsulation of Gaussia luciferase (GLuc), as a model luminescent enzyme. These GLuc-loaded PSomes present ideal features of AOs including enhanced enzymatic resistance to thermal, proteolytic, and intracellular stresses. To demonstrate their biomodulation potential, the intracellular luminescence of GLuc-loaded PSomes is coupled to optogenetically engineered cardiomyocytes, allowing modulation of cardiac beating frequency through treatment with coelenterazine (CTZ) as the substrate for GLuc. The long-term intracellular stability of the luminescent AOs allows this cardiostimulatory phenomenon to be reinitiated with fresh CTZ even after 7 days in culture. This synergistic combination of organelle-mimicking synthetic materials with genetic engineering is therefore envisioned as a highly universal strategy for the generation of new biohybrid cellular systems displaying unique triggerable properties.
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Affiliation(s)
- Hyemin Kim
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Jonathan Yeow
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Adrian Najer
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Worrapong Kit‐Anan
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Richard Wang
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Omar Rifaie‐Graham
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Chalaisorn Thanapongpibul
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Molly M. Stevens
- Department of MaterialsDepartment of Bioengineeringand Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
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10
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Wang P, Moreno S, Janke A, Boye S, Wang D, Schwarz S, Voit B, Appelhans D. Probing Crowdedness of Artificial Organelles by Clustering Polymersomes for Spatially Controlled and pH-Triggered Enzymatic Reactions. Biomacromolecules 2022; 23:3648-3662. [PMID: 35981858 DOI: 10.1021/acs.biomac.2c00546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Most sophisticated biological functions and features of cells are based on self-organization, and the coordination and connection between their cell organelles determines their key functions. Therefore, spatially ordered and controllable self-assembly of polymersomes to construct clusters to simulate complex intracellular biological functions has attracted widespread attention. Here, we present a simple one-step copper-free click strategy to cross-link nanoscale pH-responsive and photo-cross-linked polymersomes (less than 100 nm) to micron-level clusters (more than 90% in 0.5-2 μm range). Various influencing factors in the clustering process and subsequent purification methods were studied to obtain optimal clustered polymeric vesicles. Even when polymeric vesicles separately loaded with different enzymes (glucose oxidase and myoglobin) are coclustered, the overall permeability of the clusters can still be regulated through tuning the pH values on demand. Compared with simple blending of those enzyme-loaded polymersomes, the rate of enzymatic cascade reaction increased significantly due to the interconnected complex microstructure established. The connection of catalytic nanocompartments into clusters confining different enzymes of a cascade reaction provides an excellent platform for the development of artificial systems mimicking natural organelles or cells.
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Affiliation(s)
- Peng Wang
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Silvia Moreno
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - Andreas Janke
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - Susanne Boye
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - Dishi Wang
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Simona Schwarz
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany.,Organic Chemistry of Polymers, Technische Universität Dresden, D-01062 Dresden, Germany
| | - Dietmar Appelhans
- Leibniz Institute for Polymer Research Dresden, Hohe Strasse 6, D-01069 Dresden, Germany
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11
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Chao H, Zhou Z, He W, Li M, Yuan X, Su P, Song J, Yang Y. Template-Free In Situ Encapsulation of Enzymes in Hollow Covalent Organic Framework Capsules for the Electrochemical Analysis of Biomarkers. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20641-20651. [PMID: 35481761 DOI: 10.1021/acsami.2c01357] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Although capsule-like materials as host carriers for enzyme encapsulation have been a hot topic in recent years, creating an ideal microenvironment for enhanced enzymatic performance is still a formidable challenge. Herein, we created a template-free method to in situ encapsulate natural enzymes in hollow covalent organic framework (COF) capsules at room temperature. The COF crystallites migrated from the inner core and self-assembled at the outside walls during the inside-out Ostwald ripening process, retaining the enzymes in the cavity. The adjustable hollow structure of the enzyme@COF capsule allowed the basic vibration of the enzyme to maintain a certain degree of freedom, thus significantly enhancing the enzymatic bioactivity. The hollow enzyme@COF capsule has large mesoporous tunnels allowing the efficient transport. In addition, the enzyme encapsulated in the capsule showed superior activity and ultrahigh stability under various extreme conditions that may lead to enzyme inactivation, such as high temperature, organic solvents, chelates, and the denaturing agent. Finally, the prepared hollow GOx@COF capsule was used for electrochemical sensing of glucose in human serum, and the electrochemical sensor exhibited high selectivity and satisfactory test results. This research not only provides a new way for COFs to encapsulate enzymes but also has potential applications in biocatalysis and biosensing, making artificial organelles possible.
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Affiliation(s)
- Hao Chao
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Zixin Zhou
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Wenting He
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Meng Li
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Xiaoyu Yuan
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Ping Su
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Jiayi Song
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
| | - Yi Yang
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P.R. China
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Shin J, Cole BD, Shan T, Jang Y. Heterogeneous Synthetic Vesicles toward Artificial Cells: Engineering Structure and Composition of Membranes for Multimodal Functionalities. Biomacromolecules 2022; 23:1505-1518. [PMID: 35266692 DOI: 10.1021/acs.biomac.1c01504] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The desire to develop artificial cells to imitate living cells in synthetic vesicle platforms has continuously increased over the past few decades. In particular, heterogeneous synthetic vesicles made from two or more building blocks have attracted attention for artificial cell applications based on their multifunctional modules with asymmetric structures. In addition to the traditional liposomes or polymersomes, polypeptides and proteins have recently been highlighted as potential building blocks to construct artificial cells owing to their specific biological functionalities. Incorporating one or more functionally folded, globular protein into synthetic vesicles enables more cell-like functions mediated by proteins. This Review highlights the recent research about synthetic vesicles toward artificial cell models, from traditional synthetic vesicles to protein-assembled vesicles with asymmetric structures. We aim to provide fundamental and practical insights into applying knowledge on molecular self-assembly to the bottom-up construction of artificial cell platforms with heterogeneous building blocks.
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Affiliation(s)
- Jooyong Shin
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Blair D Cole
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Ting Shan
- Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Yeongseon Jang
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
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13
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Kaupbayeva B, Murata H, Matyjaszewski K, Russell AJ, Boye S, Lederer A. A comprehensive analysis in one run - in-depth conformation studies of protein-polymer chimeras by asymmetrical flow field-flow fractionation. Chem Sci 2021; 12:13848-13856. [PMID: 34760170 PMCID: PMC8549772 DOI: 10.1039/d1sc03033g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/24/2021] [Indexed: 01/04/2023] Open
Abstract
Polymer-based protein engineering has enabled the synthesis of a variety of protein-polymer conjugates that are widely applicable in therapeutic, diagnostic and biotechnological industries. Accurate characterizations of physical-chemical properties, in particular, molar masses, sizes, composition and their dispersities are critical parameters that determine the functionality and conformation of protein-polymer conjugates and are important for creating reproducible manufacturing processes. Most of the current characterization techniques suffer from fundamental limitations and do not provide an accurate understanding of a sample's true nature. In this paper, we demonstrate the advantage of asymmetrical flow field-flow fractionation (AF4) coupled with multiple detectors for the characterization of a library of complex, zwitterionic and neutral protein-polymer conjugates. This method allows for determination of intrinsic physical properties of protein-polymer chimeras from a single, rapid measurement.
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Affiliation(s)
- Bibifatima Kaupbayeva
- Department of Biological Sciences, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Hironobu Murata
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Krzysztof Matyjaszewski
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
| | - Alan J Russell
- Department of Biological Sciences, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Department of Chemical Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Susanne Boye
- Center Macromolecular Structure Analysis, Leibniz-Institut für Polymerforschung Dresden e.V. Hohe Straße 6 Dresden 01069 Germany
| | - Albena Lederer
- Center Macromolecular Structure Analysis, Leibniz-Institut für Polymerforschung Dresden e.V. Hohe Straße 6 Dresden 01069 Germany
- Stellenbosch University, Department of Chemistry and Polymer Science Private Bag X1 Matieland 7602 South Africa
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