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Ferretti L, Moccia V, Centelleghe C, Venerando A, Dettin M, Sieni E, Zamuner A, Caicci F, Castagnaro M, Zappulli V, Mazzariol S. Bottlenose dolphin (Tursiops truncatus) immortalized fibroblasts on novel 3D in vitro collagen-free scaffolds. PLoS One 2024; 19:e0304992. [PMID: 38861523 PMCID: PMC11166351 DOI: 10.1371/journal.pone.0304992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/22/2024] [Indexed: 06/13/2024] Open
Abstract
Dolphins, as apex predators, can be considered relevant sentinels of the health of marine ecosystems. The creation of 3D cell models to assess in vitro cell-to-cell and cell-to-matrix interactions in environmental-mimicking conditions, is of considerable interest. However, to date the establishment of cetacean 3D culture systems has not yet been accomplished. Thus, in this study, different 3D systems of bottlenose dolphin (Tursiops truncatus) skin fibroblasts have been analyzed. Particularly, novel scaffolds based on hyaluronic acid and ionic-complementary self-assembling peptides such as RGD-EAbuK and EAbuK-IKVAV have been compared to Matrigel. Histological and fluorescent staining, electron microscopy (TEM) analyses and viability assays have been performed and RT-PCR has been used to detect extracellular matrix (ECM) components produced by cells. Results showed that Matrigel induced cells to form aggregates with lower viability and no ECM production compared to the novel scaffolds. Moreover, scaffolds allowed dispersed cells to produce a collagenous ECM containing collagen1a1, laminin B1 and elastin. The HA-EAbuK-IKVAV scaffold resulted in the most suitable 3D model in terms of cell quantity and viability. The development of this innovative approach is the first step towards the possibility to create 3D in vitro models for this protected species.
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Affiliation(s)
- Lucrezia Ferretti
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Italy
| | - Valentina Moccia
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Italy
| | - Cinzia Centelleghe
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Italy
| | - Andrea Venerando
- Department of Agrifood, Environmental and Animal Sciences, University of Udine, Udine, Italy
| | - Monica Dettin
- Department of Industrial Engineering, University of Padova, Padova, Italy
| | - Elisabetta Sieni
- Department of Theoretical and Applied Sciences, Insubria University, Varese, Italy
| | - Annj Zamuner
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Department of Civil, Environmental, and Architectural Engineering, University of Padova, Padova, Italy
| | | | - Massimo Castagnaro
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Italy
| | - Valentina Zappulli
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Italy
| | - Sandro Mazzariol
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro, Italy
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Marsotto M, De Santis S, Sotgiu G, Battocchio C, Iucci G, Ceccucci A, Masci G, Orsini M. Multifunctional Platform for Covalent Titanium Coatings: Micro-FTIR, XPS, and NEXAFS Characterizations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6837-6845. [PMID: 37130382 DOI: 10.1021/acs.langmuir.3c00424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
This work aims at preparing and characterizing a versatile multifunctional platform enabling the immobilization of macromolecules on a titanium surface by robust covalent grafting. Functionalized titanium is widely used in the biomedical field to improve its properties. Despite its high biocompatibility and osteointegrability, titanium implants are not very stable in the long term due to the onset of inflammation and bacterial infections. The proposed method allows the superficial insertion of three different organic linkers to be used as anchors for the attachment of biopolymers or bioactive molecules. This strategy used green solvents and is a good alternative to the proposed classic methods that employ organic solvents. The uniformly modified surfaces were characterized by micro-Fourier transform infrared spectroscopy (micro-FTIR), X-ray Photoelectron spectroscopy (XPS) and Near-Edge X-ray Absorption Fine Structure (NEXAFS). The latter made it possible to assess the orientation of the linker molecules with respect to the titanium surface. To test the efficiency of the linkers, two polymers (alginate and 2-(dimethylamino)-ethyl methacrylate (PDMAEMA)), with the potential ability to increase biocompatibility, were covalently attached to the titanium surfaces. The obtained results are a good starting point for the realization of stable polymeric coatings permanently bonded to the surface that could be used to extend the life of biomedical implants.
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Affiliation(s)
- Martina Marsotto
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy
| | - Serena De Santis
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Giovanni Sotgiu
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Chiara Battocchio
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy
| | - Giovanna Iucci
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy
| | - Anita Ceccucci
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Giancarlo Masci
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Roma, Italy
| | - Monica Orsini
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
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Bio-Functionalized Chitosan for Bone Tissue Engineering. Int J Mol Sci 2021; 22:ijms22115916. [PMID: 34072888 PMCID: PMC8198664 DOI: 10.3390/ijms22115916] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 12/28/2022] Open
Abstract
Hybrid biomaterials allow for the improvement of the biological properties of materials and have been successfully used for implantology in medical applications. The covalent and selective functionalization of materials with bioactive peptides provides favorable results in tissue engineering by supporting cell attachment to the biomaterial through biochemical cues and interaction with membrane receptors. Since the functionalization with bioactive peptides may alter the chemical and physical properties of the biomaterials, in this study we characterized the biological responses of differently functionalized chitosan analogs. Chitosan analogs were produced through the reaction of GRGDSPK (RGD) or FRHRNRKGY (HVP) sequences, both carrying an aldehyde-terminal group, to chitosan. The bio-functionalized polysaccharides, pure or "diluted" with chitosan, were chemically characterized in depth and evaluated for their antimicrobial activities and biocompatibility toward human primary osteoblast cells. The results obtained indicate that the bio-functionalization of chitosan increases human-osteoblast adhesion (p < 0.005) and proliferation (p < 0.005) as compared with chitosan. Overall, the 1:1 mixture of HVP functionalized-chitosan:chitosan is the best compromise between preserving the antibacterial properties of the material and supporting osteoblast differentiation and calcium deposition (p < 0.005 vs. RGD). In conclusion, our results reported that a selected concentration of HVP supported the biomimetic potential of functionalized chitosan better than RGD and preserved the antibacterial properties of chitosan.
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Gabrielli S, Pellei M, Venditti I, Fratoddi I, Battocchio C, Iucci G, Schiesaro I, Meneghini C, Palmieri A, Marcantoni E, Bagnarelli L, Vallesi R, Santini C. Development of new and efficient copper(II) complexes of hexyl bis(pyrazolyl)acetate ligands as catalysts for allylic oxidation. Dalton Trans 2020; 49:15622-15632. [PMID: 33095220 DOI: 10.1039/d0dt02952a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this study, two new hexyl bis(pyrazol-1-yl)acetate ligands and related copper(ii) complexes were prepared and fully characterized in the solid state and in solution. Their electronic and molecular structures were investigated by X-ray photoelectron spectroscopy and near edge X-ray absorption; their ligand molecular structural stability upon coordination to copper was also investigated. The Cu(ii) complexes were studied as new catalysts in copper-catalyzed C-H oxidation for allylic functionalization (the Kharasch-Sosnovsky reaction) avoiding the use of any external reducing agents. Using 5 mol% of these catalysts and tert-butylperoxybenzoate as the oxidant, allylic benzoates were obtained in up to 90% yield: the general reaction time was decreased to 6 h and a 5 to 1 ratio of the alkene and tert-butylperoxybenzoate was used to overcome the two most important limitations on their use in chemistry.
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Affiliation(s)
- Serena Gabrielli
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
| | - Maura Pellei
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
| | - Iole Venditti
- Science Department, Roma Tre University, via della Vasca Navale 79, 00146, Rome, Italy
| | - Ilaria Fratoddi
- Chemistry Department, Sapienza University of Rome, p.le Aldo Moro 5, 00185 Rome, Italy
| | - Chiara Battocchio
- Science Department, Roma Tre University, via della Vasca Navale 79, 00146, Rome, Italy
| | - Giovanna Iucci
- Science Department, Roma Tre University, via della Vasca Navale 79, 00146, Rome, Italy
| | - Irene Schiesaro
- Science Department, Roma Tre University, via della Vasca Navale 79, 00146, Rome, Italy
| | - Carlo Meneghini
- Science Department, Roma Tre University, via della Vasca Navale 79, 00146, Rome, Italy
| | - Alessandro Palmieri
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
| | - Enrico Marcantoni
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
| | - Luca Bagnarelli
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
| | - Riccardo Vallesi
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
| | - Carlo Santini
- School of Science and Technology, Chemistry Division, University of Camerino, via S. Agostino 1, 62032 Camerino, Macerata, Italy.
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Secchi V, Franchi S, Dettin M, Zamuner A, Beranová K, Vladescu A, Battocchio C, Graziani V, Tortora L, Iucci G. Hydroxyapatite Surfaces Functionalized with a Self-Assembling Peptide: XPS, RAIRS and NEXAFS Study. NANOMATERIALS 2020; 10:nano10061151. [PMID: 32545421 PMCID: PMC7353169 DOI: 10.3390/nano10061151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/07/2020] [Accepted: 06/09/2020] [Indexed: 11/16/2022]
Abstract
Hydroxyapatite (HAP) coatings can improve the biocompatibility and bioactivity of titanium alloys, such as Ti6Al4V, commonly used as material for orthopedic prostheses. In this framework, we have studied the surface of HAP coatings enriched with Mg and either Si or Ti deposited by RF magnetron sputtering on Ti6Al4V. HAP coatings have been furtherly functionalized by adsorption of a self-assembling peptide (SAP) on the HAP surface, with the aim of increasing the material bioactivity. The selected SAP (peptide sequence AbuEAbuEAbuKAbuKAbuEAbuEAbuKAbuK) is a self-complementary oligopeptide able to generate extended ordered structures by self-assembling in watery solutions. Samples were prepared by incubation of the HAP coatings in SAP solutions and subsequently analyzed by X-Ray Photoelectron Spectroscopy (XPS), Fourier Transform Infrared (FTIR) and Near Edge X-Ray Absorption Fine Structure (NEXAFS) spectroscopies, in order to determine the amount of adsorbed peptide, the peptide stability and the structure of the peptide overlayer on the HAP coatings as a function of the HAP substrate and of the pH of the mother SAP solution. Experimental data yielded evidence of SAP adsorption on the HAP surface, and peptide overlayers showed ordered structure and molecular orientation. The thickness of the SAP overlayer depends on the composition of the HAP coating.
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Affiliation(s)
- Valeria Secchi
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Department of Materials Science, University of Milano-Bicocca, Via Cozzi 55, 20125 Milan, Italy
| | - Stefano Franchi
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Institute of Structure of Matter (ISM), National Research Council (CNR), Via Fosso del Cavaliere 100, 00133 Rome, Italy
- Correspondence: (S.F.); (G.I.)
| | - Monica Dettin
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy; (M.D.); (A.Z.)
| | - Annj Zamuner
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy; (M.D.); (A.Z.)
| | - Klára Beranová
- Materials Science Beamline, Elettra Sincrotrone Trieste SCpA, Strada Statale 14, km 163.5, 34149 Basovizza-Trieste, Italy;
| | - Alina Vladescu
- Department for Advanced Surface Processing and Analysis by Vacuum Technologies, National Institute of Research and Development for Optoelectronics, 409 Atomistilor St., 077125 Magurele, Romania;
- Physical Materials Science and Composite Materials Centre, National Research Tomsk Polytechnic University, Lenin Avenue 43, 634050 Tomsk, Russia
| | - Chiara Battocchio
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
| | - Valerio Graziani
- Surface Analysis Laboratory, INFN University Roma Tre, via della Vasca Navale 84, 00146 Rome, Italy;
| | - Luca Tortora
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Surface Analysis Laboratory, INFN University Roma Tre, via della Vasca Navale 84, 00146 Rome, Italy;
| | - Giovanna Iucci
- Department of Science, Roma Tre University, Via della Vasca Navale 79, 00146 Rome, Italy; (V.S.); (C.B.); (L.T.)
- Correspondence: (S.F.); (G.I.)
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Battocchio C. Advanced Synchrotron Radiation Techniques for Nanostructured Materials. NANOMATERIALS 2019; 9:nano9091279. [PMID: 31500296 PMCID: PMC6781090 DOI: 10.3390/nano9091279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 11/23/2022]
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Secchi V, Franchi S, Ciccarelli D, Dettin M, Zamuner A, Serio A, Iucci G, Battocchio C. Biofunctionalization of TiO 2 Surfaces with Self-Assembling Layers of Oligopeptides Covalently Grafted to Chitosan. ACS Biomater Sci Eng 2019; 5:2190-2199. [PMID: 33405771 DOI: 10.1021/acsbiomaterials.9b00430] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In the field of tissue engineering, a promising approach to obtain a bioactive, biomimetic, and antibiotic implant is the functionalization of a "classical" biocompatible material, for example, titanium, with appropriate biomolecules. For this purpose, we propose preparing self-assembling films of multiple components, allowing the mixing of different biofunctionalities "on demand". Self-assembling peptides (SAPs) are synthetic materials characterized by the ability to self-organize in nanostructures both in aqueous solution and as thin or thick films. Moreover, ordered layers of SAPs adhere on titanium surface as a scaffold coating to mimic the extracellular matrix. Chitosan is a versatile hydrophilic polysaccharide derived from chitin, with a broad antimicrobial spectrum to which Gram-negative and Gram-positive bacteria and fungi are highly susceptible, and is already known in the literature for the ability of its derivatives to firmly graft titanium alloys and show protective effects against some bacterial species, either alone or in combination with other antimicrobial substances such as antibiotics or antimicrobial peptides. In this context, we functionalized titanium surfaces with chitosan grafted to EAK16-II (a SAP), obtaining layer-by-layer structures of different degrees of order, depending on the preparative stoichiometry and path. The chemical composition, molecular structure, and arrangement of the obtained biofunctionalized surfaces were investigated by surface-sensitive techniques such as reflection-absorption infrared spectroscopy (RAIRS) and state-of-the-art synchrotron radiation-induced spectroscopies as X-ray photoemission spectroscopy (SR-XPS), and near-edge X-ray absorption fine structure (NEXAFS). Furthermore, was demonstrated that surfaces coated with EAK and Chit-EAK can support hNPs cell attachment and growth.
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Affiliation(s)
- Valeria Secchi
- Department of Science, Roma Tre University of Rome Via della Vasca Navale 79, Rome 00146, Italy
| | - Stefano Franchi
- Elettra-Sincrotrone Trieste S.c.p.A., Strada statale 14, km 163.5, Basovizza (Trieste) 34149, Italy
| | - Davide Ciccarelli
- Department of Science, Roma Tre University of Rome Via della Vasca Navale 79, Rome 00146, Italy
| | - Monica Dettin
- Department of Industrial Engineering, University of Padua, Via Marzolo, 9, Padua 35131, Italy
| | - Annj Zamuner
- Department of Industrial Engineering, University of Padua, Via Marzolo, 9, Padua 35131, Italy
| | - Andrea Serio
- Centre for Craniofacial & Regenerative Biology, King's College London, London SE1 9RT, United Kingdom
| | - Giovanna Iucci
- Department of Science, Roma Tre University of Rome Via della Vasca Navale 79, Rome 00146, Italy
| | - Chiara Battocchio
- Department of Science, Roma Tre University of Rome Via della Vasca Navale 79, Rome 00146, Italy
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Tian D, He CH, He JH. Macromolecule Orientation in Nanofibers. NANOMATERIALS 2018; 8:nano8110918. [PMID: 30405041 PMCID: PMC6267622 DOI: 10.3390/nano8110918] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 11/02/2018] [Accepted: 11/05/2018] [Indexed: 12/23/2022]
Abstract
Electrospinning is now commercially used for the fabrication of nano/micro fibers. Compared with spider dragline silk, artificial fibers have poor mechanical properties. Unlike natural silk, which has a hierarchical structure with an approximate 3-fold symmetry, the molecular structure of spun fiber has neither folding nor orientation. To date, it is almost impossible to control molecule orientation during the spinning process. Here, we show that macromolecule orientation can be easily controlled using the laminar flow of fluid mechanics. A lasting laminar flow in a long needle can order macromolecules. We find that the orientation of macromolecules can greatly affect the morphology and mechanical properties of fibers. We expect our technology to be helpful for more sophisticated fabrication of fibers with ordered macromolecules and DNA-like twists.
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Affiliation(s)
- Dan Tian
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
| | - Chun-Hui He
- Department of Chemistry, Xi'an-Jiaotong Liverpool University, Suzhou 215123, China.
| | - Ji-Huan He
- National Engineering Laboratory for Modern Silk, College of Textile and Engineering, Soochow University, 199 Ren-ai Road, Suzhou 215123, China.
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