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Balion Z, Cėpla V, Svirskiene N, Svirskis G, Druceikaitė K, Inokaitis H, Rusteikaitė J, Masilionis I, Stankevičienė G, Jelinskas T, Ulčinas A, Samanta A, Valiokas R, Jekabsone A. Cerebellar Cells Self-Assemble into Functional Organoids on Synthetic, Chemically Crosslinked ECM-Mimicking Peptide Hydrogels. Biomolecules 2020; 10:E754. [PMID: 32408703 PMCID: PMC7277677 DOI: 10.3390/biom10050754] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/28/2020] [Accepted: 05/02/2020] [Indexed: 12/12/2022] Open
Abstract
Hydrogel-supported neural cell cultures are more in vivo-relevant compared to monolayers formed on glass or plastic substrates. However, there is a lack of synthetic microenvironment available for obtaining standardized and easily reproducible cultures characterized by tissue-mimicking cell composition, cell-cell interactions, and functional networks. Synthetic peptides representing the biological properties of the extracellular matrix (ECM) proteins have been reported to promote the adhesion-driven differentiation and functional maturation of neural cells. Thus, such peptides can serve as building blocks for engineering a standardized, all-synthetic environment. In this study, we have compared the effect of two chemically crosslinked hydrogel compositions on primary cerebellar cells: collagen-like peptide (CLP), and CLP with an integrin-binding motif arginine-glycine-aspartate (CLP-RGD), both conjugated to polyethylene glycol molecular templates (PEG-CLP and PEG-CLP-RGD, respectively) and fabricated as self-supporting membranes. Both compositions promoted a spontaneous organization of primary cerebellar cells into tissue-like clusters with fast-rising Ca2+ signals in soma, reflecting action potential generation. Notably, neurons on PEG-CLP-RGD had more neurites and better synaptic efficiency compared to PEG-CLP. For comparison, poly-L-lysine-coated glass and plastic surfaces did not induce formation of such spontaneously active networks. Additionally, contrary to the hydrogel membranes, glass substrates functionalized with PEG-CLP and PEG-CLP-RGD did not sufficiently support cell attachment and, subsequently, did not promote functional cluster formation. These results indicate that not only chemical composition but also the hydrogel structure and viscoelasticity are essential for bioactive signaling. The synthetic strategy based on ECM-mimicking, multifunctional blocks in registry with chemical crosslinking for obtaining tissue-like mechanical properties is promising for the development of fast and well standardized functional in vitro neural models and new regenerative therapies.
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Affiliation(s)
- Zbigniev Balion
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukilėlių ave. 13, LT-50162 Kaunas, Lithuania; (Z.B.); (J.R.)
- Neuroscience Institute, Lithuanian University of Health Sciences, Eivenių str. 4, LT-50161 Kaunas, Lithuania; (N.S.); (G.S.)
| | - Vytautas Cėpla
- Ferentis UAB, Savanorių 231, LT-02300 Vilnius, Lithuania; (V.C.); (K.D.); (I.M.); (G.S.); (T.J.); (R.V.)
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania;
| | - Nataša Svirskiene
- Neuroscience Institute, Lithuanian University of Health Sciences, Eivenių str. 4, LT-50161 Kaunas, Lithuania; (N.S.); (G.S.)
| | - Gytis Svirskis
- Neuroscience Institute, Lithuanian University of Health Sciences, Eivenių str. 4, LT-50161 Kaunas, Lithuania; (N.S.); (G.S.)
| | - Kristina Druceikaitė
- Ferentis UAB, Savanorių 231, LT-02300 Vilnius, Lithuania; (V.C.); (K.D.); (I.M.); (G.S.); (T.J.); (R.V.)
| | - Hermanas Inokaitis
- Institute of Anatomy, Lithuanian University of Health Sciences, Mickeviciaus 9, LT-43074 Kaunas, Lithuania;
| | - Justina Rusteikaitė
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukilėlių ave. 13, LT-50162 Kaunas, Lithuania; (Z.B.); (J.R.)
| | - Ignas Masilionis
- Ferentis UAB, Savanorių 231, LT-02300 Vilnius, Lithuania; (V.C.); (K.D.); (I.M.); (G.S.); (T.J.); (R.V.)
| | - Gintarė Stankevičienė
- Ferentis UAB, Savanorių 231, LT-02300 Vilnius, Lithuania; (V.C.); (K.D.); (I.M.); (G.S.); (T.J.); (R.V.)
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania;
| | - Tadas Jelinskas
- Ferentis UAB, Savanorių 231, LT-02300 Vilnius, Lithuania; (V.C.); (K.D.); (I.M.); (G.S.); (T.J.); (R.V.)
| | - Artūras Ulčinas
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania;
| | - Ayan Samanta
- Polymer Chemistry, Department of Chemistry - Ångström Laboratory, Uppsala University, Box 538, 75121 Uppsala, Sweden;
| | - Ramūnas Valiokas
- Ferentis UAB, Savanorių 231, LT-02300 Vilnius, Lithuania; (V.C.); (K.D.); (I.M.); (G.S.); (T.J.); (R.V.)
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanorių 231, LT-02300 Vilnius, Lithuania;
| | - Aistė Jekabsone
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukilėlių ave. 13, LT-50162 Kaunas, Lithuania; (Z.B.); (J.R.)
- Neuroscience Institute, Lithuanian University of Health Sciences, Eivenių str. 4, LT-50161 Kaunas, Lithuania; (N.S.); (G.S.)
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Neniškis A, Račkauskaitė D, Shi Q, Robertson AJ, Marsh A, Ulčinas A, Valiokas R, Brown SP, Wärnmark K, Orentas E. Frontispiece: A Tautoleptic Approach to Chiral Hydrogen‐Bonded Supramolecular Tubular Polymers with Large Cavity. Chemistry 2018. [DOI: 10.1002/chem.201885364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Qixun Shi
- Center for Analysis and SynthesisDepartment of ChemistryLund University Lund Sweden
| | - Aiden J. Robertson
- Department of Physics and Department of ChemistryUniversity of Warwick Coventry UK
| | - Andrew Marsh
- Department of Physics and Department of ChemistryUniversity of Warwick Coventry UK
| | - Artūras Ulčinas
- Department of NanoengineeringCenter for Physical Sciences and Technology Vilnius Lithuania
| | - Ramūnas Valiokas
- Department of NanoengineeringCenter for Physical Sciences and Technology Vilnius Lithuania
| | - Steven P. Brown
- Department of Physics and Department of ChemistryUniversity of Warwick Coventry UK
| | - Kenneth Wärnmark
- Center for Analysis and SynthesisDepartment of ChemistryLund University Lund Sweden
| | - Edvinas Orentas
- Department of Organic ChemistryVilnius University Vilnius Lithuania
- Department of NanoengineeringCenter for Physical Sciences and Technology Vilnius Lithuania
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Neniškis A, Račkauskaitė D, Shi Q, Robertson AJ, Marsh A, Ulčinas A, Valiokas R, Brown SP, Wärnmark K, Orentas E. A Tautoleptic Approach to Chiral Hydrogen-Bonded Supramolecular Tubular Polymers with Large Cavity. Chemistry 2018; 24:14028-14033. [PMID: 30070741 PMCID: PMC6391958 DOI: 10.1002/chem.201803701] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Indexed: 11/12/2022]
Abstract
A new strategy towards tubular hydrogen-bonded polymers based on the self-assembly of isocytosine tautomers in orthogonal directions is proposed and experimentally verified, including by 1 H fast magic-angle spinning (MAS) solid-state NMR. The molecular tubes obtained possess large internal diameter and tailor-made outer functionalities rendering them potential candidates for a number of applications.
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Affiliation(s)
- Algirdas Neniškis
- Department of Organic Chemistry, Vilnius University, Vilnius, Lithuania
| | | | - Qixun Shi
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Lund, Sweden
| | - Aiden J Robertson
- Department of Physics and Department of Chemistry, University of Warwick, Coventry, UK
| | - Andrew Marsh
- Department of Physics and Department of Chemistry, University of Warwick, Coventry, UK
| | - Artūras Ulčinas
- Department of Nanoengineering, Center for Physical Sciences and Technology, Vilnius, Lithuania
| | - Ramūnas Valiokas
- Department of Nanoengineering, Center for Physical Sciences and Technology, Vilnius, Lithuania
| | - Steven P Brown
- Department of Physics and Department of Chemistry, University of Warwick, Coventry, UK
| | - Kenneth Wärnmark
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Lund, Sweden
| | - Edvinas Orentas
- Department of Organic Chemistry, Vilnius University, Vilnius, Lithuania.,Department of Nanoengineering, Center for Physical Sciences and Technology, Vilnius, Lithuania
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Shi Q, Javorskis T, Bergquist KE, Ulčinas A, Niaura G, Matulaitienė I, Orentas E, Wärnmark K. Stimuli-controlled self-assembly of diverse tubular aggregates from one single small monomer. Nat Commun 2017; 8:14943. [PMID: 28401927 PMCID: PMC5394284 DOI: 10.1038/ncomms14943] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 02/14/2017] [Indexed: 11/26/2022] Open
Abstract
The design and synthesis of new stimuli-responsive hydrogen-bonding monomers that display a diversity of self-assembly pathways is of central importance in supramolecular chemistry. Here we describe the aggregation properties of a simple, intrinsically C2-symmetric enantiopure bicyclic cavity compound bearing a terminally unsubstituted ureidopyrimidinone fragment fused with a pyrrole moiety in different solvents and in the absence and presence of C60 and C70 guests. The tetrameric cyclic aggregate is selectively obtained in chlorinated solvents, where only part of the available hydrogen bonding sites are utilized, whereas in toluene or upon addition of C70 guests, further aggregation into tubular supramolecular polymers is achieved. The open-end cyclic assemblies rearrange into a closed-shell capsule upon introduction of C60 with an accompanied symmetry breaking of the monomer. Our study demonstrates that a C60 switch can be used to simultaneously control the topology and occupancy of tubular assemblies resulting from the aggregation of small monomers.
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Affiliation(s)
- Qixun Shi
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Lund SE-221 00, Sweden
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Tomas Javorskis
- Department of Organic Chemistry, Vilnius University, Vilnius LT-03225, Lithuania
| | - Karl-Erik Bergquist
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Lund SE-221 00, Sweden
| | - Artūras Ulčinas
- Department of Nanoengineering, Center for Physical Sciences and Technology, Vilnius LT-02300, Lithuania
| | - Gediminas Niaura
- Department of Organic Chemistry, Center for Physical Sciences and Technology, Vilnius LT-10257, Lithuania
| | - Ieva Matulaitienė
- Department of Organic Chemistry, Center for Physical Sciences and Technology, Vilnius LT-10257, Lithuania
| | - Edvinas Orentas
- Department of Organic Chemistry, Vilnius University, Vilnius LT-03225, Lithuania
| | - Kenneth Wärnmark
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Lund SE-221 00, Sweden
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Abstract
A non-raster scanning technique for atomic force microscopy (AFM) imaging which combines rotational and translational motion is presented. The use of rotational motion for the fast scan axis allows us to significantly increase the scanning speed while imaging a large area (diameter > 30 μm). An image reconstruction algorithm and the factors influencing the resolution of the technique are discussed. The experimental results show the potential of the rotational scanning technique for high-throughput large area AFM investigation.
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Affiliation(s)
- A Ulčinas
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanoriu 231, 02300 Vilnius, Lithuania
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