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Furlani F, Pota G, Rossi A, Luciani G, Campodoni E, Mocerino F, D'Errico G, Pezzella A, Panseri S, Vitiello G, Sandri M. Designing bioinspired multifunctional nanoplatforms to support wound healing and skin regeneration: Mg-hydroxyapatite meets melanins. Colloids Surf B Biointerfaces 2024; 235:113756. [PMID: 38278033 DOI: 10.1016/j.colsurfb.2024.113756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/04/2024] [Accepted: 01/12/2024] [Indexed: 01/28/2024]
Abstract
Melanin is a multifunctional biological pigment that recently emerged as endowed with anti-inflammatory, antioxidant, and antimicrobial properties and with high potentialities in skin protection and regenerative medicine. Here, a biomimetic magnesium-doped nano-hydroxyapatite (MgHA) was synthesized and decorated with melanin molecules starting from two different monomeric precursors, i.e. 5,6-dihydroxyindole-2-carboxylic acid (DHICA) and dopamine (DA), demonstrating to be able to polymerize on the surface of MgHA nanostructures, thus leading to a melanin coating. This functionalization was realized by a simple and green preparation method requiring mild conditions in an aqueous medium and room temperature. Complementary spectroscopy and electron imaging analyses were carried out to define the effective formation of a stable coating, the percentage of the organic compounds, and the structural properties of resulting melanin-coated nanostructures, which showed good antioxidant activity. The in vitro interaction with a cell model, i.e. mouse fibroblasts, was investigated. The excellent biocompatibility of all bioinspired nanostructures was confirmed from a suitable cell proliferation. Finally, the enhanced biological performances of the nanostructures coated with melanin from DHICA were confirmed by scratch assays. Jointly our findings indicated that low crystalline MgHA and melanin pigments can be efficiently combined, and the resulting nanostructures are promising candidates as multifunctional platforms for a more efficient approach for skin regeneration and protection.
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Affiliation(s)
- Franco Furlani
- National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics - CNR - ISSMC (former ISTEC), Via Granarolo 64, I - 48018 Faenza (RA), Italy.
| | - Giulio Pota
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Napoli, Italy and Bioelectronics Task Force at University of Naples Federico II, Naples, Italy
| | - Arianna Rossi
- National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics - CNR - ISSMC (former ISTEC), Via Granarolo 64, I - 48018 Faenza (RA), Italy; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, I-98166 Messina, Italy
| | - Giuseppina Luciani
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Napoli, Italy and Bioelectronics Task Force at University of Naples Federico II, Naples, Italy
| | - Elisabetta Campodoni
- National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics - CNR - ISSMC (former ISTEC), Via Granarolo 64, I - 48018 Faenza (RA), Italy
| | - Fabio Mocerino
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, I-80126 Napoli, Italy and Bioelectronics Task Force at University of Naples Federico II, Naples, Italy
| | - Gerardino D'Errico
- Department of Chemical Sciences, University of Naples Federico II, via Cintia 21, I-80126 Napoli, Italy and Bioelectronics Task Force at University of Naples Federico II, Naples, Italy; CSGI, Center for Colloid and Surface Science, via della Lastruccia 3, 50019 Florence, Italy
| | - Alessandro Pezzella
- Institute for Polymers Composites and Biomaterials (IPCB) CNR, Via Campi Flegrei 34, IT-80078 Pozzuoli (Na), Italy and Bioelectronics Task Force at University of Naples Federico II, Naples, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Piazza S. Marco, 4, Florence, Naples 50121, Italy; Department of Physics "Ettore Pancini", University of Naples Federico II, via Cintia 21, I-80126 Napoli, Italy, Via Campi Flegrei 34, IT-80078 Pozzuoli (Na), Italy and Bioelectronics Task Force at University of Naples Federico II, Naples, Italy
| | - Silvia Panseri
- National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics - CNR - ISSMC (former ISTEC), Via Granarolo 64, I - 48018 Faenza (RA), Italy
| | - Giuseppe Vitiello
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Napoli, Italy and Bioelectronics Task Force at University of Naples Federico II, Naples, Italy; CSGI, Center for Colloid and Surface Science, via della Lastruccia 3, 50019 Florence, Italy.
| | - Monica Sandri
- National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics - CNR - ISSMC (former ISTEC), Via Granarolo 64, I - 48018 Faenza (RA), Italy
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Takhsha M, Furlani F, Panseri S, Casoli F, Uhlíř V, Albertini F. Magnetic Shape-Memory Heuslers Turn to Bio: Cytocompatibility of Ni-Mn-Ga Films and Biomedical Perspective. ACS Appl Bio Mater 2023; 6:5009-5017. [PMID: 37887071 DOI: 10.1021/acsabm.3c00691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Magnetic shape-memory (MSM) Heuslers have attracted great attention in recent years for both caloric and magnetomechanical applications. Thanks to their multifunctional properties, they are also promising for a vast variety of biomedical applications. However, this topic has been rarely investigated so far. In this communication, we present the first report on the absence of cytotoxicity of MSM Heuslers in Ni-Mn-Ga epitaxial thin films and the perspective toward bioapplications. Qualitative and quantitative biological characterizations reveal that Ni-Mn-Ga films can promote the adhesion and proliferation of human fibroblasts without eliciting any cytotoxic effect. Additionally, our findings show that the morphology, composition, microstructure, phase transformation, and magnetic characteristics of the films are well preserved after the biological treatments, making the material a promising candidate for further investigations.
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Affiliation(s)
- Milad Takhsha
- National Research Council of Italy - Institute of Materials for Electronics and Magnetism (IMEM-CNR), Parco area delle scienze 37/A, 43124 Parma, PR, Italy
| | - Franco Furlani
- National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics (ISSMC-CNR), Via Granarolo 64, 48018 Faenza, RA, Italy
| | - Silvia Panseri
- National Research Council of Italy - Institute of Science, Technology and Sustainability for Ceramics (ISSMC-CNR), Via Granarolo 64, 48018 Faenza, RA, Italy
| | - Francesca Casoli
- National Research Council of Italy - Institute of Materials for Electronics and Magnetism (IMEM-CNR), Parco area delle scienze 37/A, 43124 Parma, PR, Italy
| | - Vojtěch Uhlíř
- Central European Institute of Technology, Brno University of Technology (CEITEC BUT), Purkyňova 123, 61 200 Brno, Czech Republic
- Institute of Physical Engineering, Brno University of Technology, Technická 2, 61669 Brno, Czech Republic
| | - Franca Albertini
- National Research Council of Italy - Institute of Materials for Electronics and Magnetism (IMEM-CNR), Parco area delle scienze 37/A, 43124 Parma, PR, Italy
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Furlani F, Campodoni E, Sangiorgi N, Montesi M, Sanson A, Sandri M, Panseri S. Electroconductive scaffolds based on gelatin and PEDOT:PSS for cardiac regeneration. Int J Biol Macromol 2022; 224:266-280. [DOI: 10.1016/j.ijbiomac.2022.10.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 11/05/2022]
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Liu Q, Sacco P, Marsich E, Furlani F, Arib C, Djaker N, Lamy de la Chapelle M, Donati I, Spadavecchia J. Correction to "Lactose-Modified Chitosan Gold(III)-PEGylated Complex-Bioconjugates: From Synthesis to Interaction with Targeted Galectin-1 Protein". Bioconjug Chem 2022; 33:1439. [PMID: 35731939 DOI: 10.1021/acs.bioconjchem.2c00258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Furlani F, Rossi A, Grimaudo MA, Bassi G, Giusto E, Molinari F, Lista F, Montesi M, Panseri S. Controlled Liposome Delivery from Chitosan-Based Thermosensitive Hydrogel for Regenerative Medicine. Int J Mol Sci 2022; 23:ijms23020894. [PMID: 35055097 PMCID: PMC8776110 DOI: 10.3390/ijms23020894] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 12/11/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 02/07/2023] Open
Abstract
This work describes the development of an injectable nanocomposite system based on a chitosan thermosensitive hydrogel combined with liposomes for regenerative medicine applications. Liposomes with good physicochemical properties are prepared and embedded within the chitosan network. The resulting nanocomposite hydrogel is able to provide a controlled release of the content from liposomes, which are able to interact with cells and be internalized. The cellular uptake is enhanced by the presence of a chitosan coating, and cells incubated with liposomes embedded within thermosensitive hydrogels displayed a higher cell uptake compared to cells incubated with liposomes alone. Furthermore, the gelation temperature of the system resulted to be equal to 32.6 °C; thus, the system can be easily injected in the target site to form a hydrogel at physiological temperature. Given the peculiar performance of the selected systems, the resulting thermosensitive hydrogels are a versatile platform and display potential applications as controlled delivery systems of liposomes for tissue regeneration.
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Affiliation(s)
- Franco Furlani
- National Research Council of Italy-Institute of Science and Technology for Ceramics (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, Italy; (A.R.); (M.A.G.); (G.B.); (E.G.); (M.M.)
- Correspondence: (F.F.); (S.P.); Tel.: +39-0546-699-776 (F.F.); +39-0546-699-785 (S.P.)
| | - Arianna Rossi
- National Research Council of Italy-Institute of Science and Technology for Ceramics (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, Italy; (A.R.); (M.A.G.); (G.B.); (E.G.); (M.M.)
| | - Maria Aurora Grimaudo
- National Research Council of Italy-Institute of Science and Technology for Ceramics (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, Italy; (A.R.); (M.A.G.); (G.B.); (E.G.); (M.M.)
| | - Giada Bassi
- National Research Council of Italy-Institute of Science and Technology for Ceramics (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, Italy; (A.R.); (M.A.G.); (G.B.); (E.G.); (M.M.)
| | - Elena Giusto
- National Research Council of Italy-Institute of Science and Technology for Ceramics (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, Italy; (A.R.); (M.A.G.); (G.B.); (E.G.); (M.M.)
| | - Filippo Molinari
- Army Medical Center, Scientific Department, I-00184 Rome, Italy; (F.M.); (F.L.)
| | - Florigio Lista
- Army Medical Center, Scientific Department, I-00184 Rome, Italy; (F.M.); (F.L.)
| | - Monica Montesi
- National Research Council of Italy-Institute of Science and Technology for Ceramics (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, Italy; (A.R.); (M.A.G.); (G.B.); (E.G.); (M.M.)
| | - Silvia Panseri
- National Research Council of Italy-Institute of Science and Technology for Ceramics (ISTEC-CNR), Via Granarolo 64, I-48018 Faenza, Italy; (A.R.); (M.A.G.); (G.B.); (E.G.); (M.M.)
- Correspondence: (F.F.); (S.P.); Tel.: +39-0546-699-776 (F.F.); +39-0546-699-785 (S.P.)
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Furlani F, Montanari M, Sangiorgi N, Saracino E, Campodoni E, Sanson A, Benfenati V, Tampieri A, Panseri S, Sandri M. Electroconductive and injectable hydrogels based on gelatin and PEDOT:PSS for mini-invasive approaches in nervous tissue regeneration. Biomater Sci 2022; 10:2040-2053. [DOI: 10.1039/d2bm00116k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work describes the development of electroconductive hydrogels as injectable matrices for neural tissue regeneration by exploiting a biocompatible conductive polymer – i.e. poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) – combined with a biomimetic...
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Abstract
Strain hardening has recently emerged as a near-universal response of biological tissues to mechanical stimulation as well as a powerful regulator of cell fate. Understanding the mechanistic basis for this nonlinear elasticity is crucial for developing bioinspired materials that mimic extracellular matrix mechanics. Here, we show that covalent networks built from highly acetylated chitosans exhibit strain hardening at physiological pH and osmolarity. While varying the chitosan physical-chemical composition and network connectivity, we provide evidence that temporary nodes arising from the entangling of chains between stable cross-links are at the root of nonlinear elasticity. The contour length (Lc) of the said chains revealed that the larger the chain length between the cross-links, the greater is the entanglement over disentanglement upon network stretching. To this end, we calculated that the minimum number of Khun's segments in Lc that contributes to the onset of strain hardening is 15. Furthermore, we identified a relationship between critical strain marking nonlinear elasticity and the network connectivity, being similar to that found for the cytoskeletal collagen matrix, indicating the potential use of semiflexible (neutral pH-soluble) chitosans in assembling extracellular matrix mimics.
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Affiliation(s)
- Franco Furlani
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, Trieste I-34127, Italy
| | - Andrea Marfoglia
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, Trieste I-34127, Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza Dell'Ospitale 1, Trieste I-34129, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, Trieste I-34127, Italy
| | - Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, Trieste I-34127, Italy
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Sacco P, Furlani F, Marfoglia A, Cok M, Pizzolitto C, Marsich E, Donati I. Temporary/Permanent Dual Cross‐Link Gels Formed of a Bioactive Lactose‐Modified Chitosan. Macromol Biosci 2020; 20:e2000236. [DOI: 10.1002/mabi.202000236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/09/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Franco Furlani
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Andrea Marfoglia
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Michela Cok
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
| | - Chiara Pizzolitto
- Department of Medicine, Surgery and Health Sciences University of Trieste Piazza dell'Ospitale 1 Trieste I‐34129 Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences University of Trieste Piazza dell'Ospitale 1 Trieste I‐34129 Italy
| | - Ivan Donati
- Department of Life Sciences University of Trieste Via Licio Giorgieri 5 Trieste I‐34127 Italy
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Furlani F, Sacco P, Cok M, de Marzo G, Marsich E, Paoletti S, Donati I. Biomimetic, Multiresponsive, and Self-Healing Lactose-Modified Chitosan (CTL)-Based Gels Formed via Competitor-Assisted Mechanism. ACS Biomater Sci Eng 2019; 5:5539-5547. [DOI: 10.1021/acsbiomaterials.9b01256] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Franco Furlani
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Michela Cok
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Gaia de Marzo
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery, and Health Sciences, University of Trieste, Piazza dell’Ospitale 1, I-34129 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Franco Furlani
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy
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Furlani F, Sacco P, Decleva E, Menegazzi R, Donati I, Paoletti S, Marsich E. Chitosan Acetylation Degree Influences the Physical Properties of Polysaccharide Nanoparticles: Implication for the Innate Immune Cells Response. ACS Appl Mater Interfaces 2019; 11:9794-9803. [PMID: 30768897 DOI: 10.1021/acsami.8b21791] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The aim of the present contribution is twofold as it reports (i) on the role played by chitosan acetylation degree for the stability of nanoparticles (NPs) formed with hyaluronan and (ii) on the effect of the interaction of such NPs with immune cells. Chitosans with similar viscosity-average molecular weight, [Formula: see text], (i.e., 200 000) and different fractions of acetylated units ( FA) together with low-molecular-weight hyaluronan were chosen for developing a select library of formulations via electrostatic complex coacervation. The resulting NPs were analyzed in terms of size, polydispersity, surface charge, and stability in physiological-mimicked media by dynamic light scattering. Only medium acetylated chitosan ( FA = 0.16) guaranteed the stability of NPs. To explore the effect of NPs interaction with immune cells, the release of proinflammatory cytokines and the reactive oxygen species production by human macrophages and neutrophils, respectively, were evaluated. Strikingly, a structure-function relationship emerged, showing that NPs made of chitosans with FA = 0.02, 0.25, 0.46, and 0.63 manifested a proinflammatory activity, linked to the instability of the system. Conversely, NPs made of chitosan with FA = 0.16 neither modified the functional response of macrophages nor that of neutrophils. Of note, such NPs were found to possess additional properties potentially advantageous in applications such as delivery of therapeutics to target inflamed sites: (i) they are devoid of cytotoxic effects, (ii) they avoid engulfment during the early stage of interaction with macrophages, and (iii) they are muco-adhesive, thereby providing for site-specificity and long-residence effects.
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Affiliation(s)
- Franco Furlani
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Pasquale Sacco
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eva Decleva
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Renzo Menegazzi
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Ivan Donati
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Sergio Paoletti
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences , University of Trieste , Piazza dell'Ospitale 1 , I-34129 Trieste , Italy
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Furlani F, Sacco P, Scognamiglio F, Asaro F, Travan A, Borgogna M, Marsich E, Cok M, Paoletti S, Donati I. Nucleation, reorganization and disassembly of an active network from lactose-modified chitosan mimicking biological matrices. Carbohydr Polym 2019; 208:451-456. [DOI: 10.1016/j.carbpol.2018.12.096] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/20/2018] [Accepted: 12/30/2018] [Indexed: 01/07/2023]
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Liu Q, Sacco P, Marsich E, Furlani F, Arib C, Djaker N, Lamy de la Chapelle M, Donati I, Spadavecchia J. Lactose-Modified Chitosan Gold(III)-PEGylated Complex-Bioconjugates: From Synthesis to Interaction with Targeted Galectin-1 Protein. Bioconjug Chem 2018; 29:3352-3361. [PMID: 30215508 DOI: 10.1021/acs.bioconjchem.8b00520] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Galectins (Gal) are a family of glycan-binding proteins characterized by their affinity for β-galactosides. Galectin-1 (Gal-1), a dimeric lectin with two galactoside-binding sites, regulates cancer progression and immune responses. Coordination chemistry has been engaged to develop versatile multivalent neoglycoconjugates for binding Gal-1. In this study we report a fast and original method to synthesize hybrid gold nanoparticles in which a hydrochloride lactose-modified chitosan, named CTL, is mixed with dicarboxylic acid-terminated polyethylene glycol (PEG), leading to shell-like hybrid polymer-sugar-metal nanoparticles (CTL-PEG-AuNPs). The aim of this paper is to preliminarily study the interaction of the CTL-PEG-AuNPs with a target protein, namely, Gal-1, under specific conditions. The molecular interaction has been measured by Transmission Electron Microscopy (TEM), UV-vis, and Raman Spectroscopy on a large range of Gal-1 concentrations (from 0 to 10-12 M). We observed that the interaction was strongly dependent on the Gal-1 concentration at the surface of the gold nanoparticles.
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Affiliation(s)
- Qiqian Liu
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
| | - Pasquale Sacco
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences , University of Trieste , Piazza dell'Ospitale 1 , I-34129 Trieste , Italy
| | - Franco Furlani
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Celia Arib
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
| | - Nadia Djaker
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
| | - Marc Lamy de la Chapelle
- Institut des Molécules et Matériaux du Mans (IMMM - UMR CNRS 6283) , Le Mans Université , Avenue Olivier Messiaen , 72085 Le Mans cedex 9, France.,Department of Clinical Laboratory Medicine, Southwest Hospital , Third Military Medical University , 400038 Chongqing , China
| | - Ivan Donati
- Department of Life Sciences , University of Trieste , Via L. Giorgieri 5 , I-34127 Trieste , Italy
| | - Jolanda Spadavecchia
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques , Université Paris 13, Sorbonne Paris Cité , 93000 Bobigny , France
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Sacco P, Furlani F, De Marzo G, Marsich E, Paoletti S, Donati I. Concepts for Developing Physical Gels of Chitosan and of Chitosan Derivatives. Gels 2018; 4:E67. [PMID: 30674843 PMCID: PMC6209275 DOI: 10.3390/gels4030067] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 08/07/2018] [Indexed: 02/06/2023] Open
Abstract
Chitosan macro- and micro/nano-gels have gained increasing attention in recent years, especially in the biomedical field, given the well-documented low toxicity, degradability, and non-immunogenicity of this unique biopolymer. In this review we aim at recapitulating the recent gelling concepts for developing chitosan-based physical gels. Specifically, we describe how nowadays it is relatively simple to prepare networks endowed with different sizes and shapes simply by exploiting physical interactions, namely (i) hydrophobic effects and hydrogen bonds-mostly governed by chitosan chemical composition-and (ii) electrostatic interactions, mainly ensured by physical/chemical chitosan features, such as the degree of acetylation and molecular weight, and external parameters, such as pH and ionic strength. Particular emphasis is dedicated to potential applications of this set of materials, especially in tissue engineering and drug delivery sectors. Lastly, we report on chitosan derivatives and their ability to form gels. Additionally, we discuss the recent findings on a lactose-modified chitosan named Chitlac, which has proved to form attractive gels both at the macro- and at the nano-scale.
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Franco Furlani
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Gaia De Marzo
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Eleonora Marsich
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, I-34125 Trieste, Italy.
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, I-34127 Trieste, Italy.
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15
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Sacco P, Furlani F, Cok M, Travan A, Borgogna M, Marsich E, Paoletti S, Donati I. Boric Acid Induced Transient Cross-Links in Lactose-Modified Chitosan (Chitlac). Biomacromolecules 2017; 18:4206-4213. [PMID: 29039653 DOI: 10.1021/acs.biomac.7b01237] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present paper explores the effect of boric acid on Chitlac, a lactose-modified chitosan which had previously shown interesting biological and physical-chemical features. The herewith-reported experimental evidences demonstrated that boric acid binds to Chitlac, producing conformational and association effects on the chitosan derivative. The thermodynamics of boric acid binding to Chitlac was explored by means of 11B NMR, circular dichroism (CD), and UV-vis spectroscopy, while macromolecular effects were investigated by means of viscometry and dynamic light scattering (DLS). The experimental results revealed a chain-chain association when limited amounts of boric acid were added to Chitlac. However, upon exceeding a critical boric acid limit dependent on the polysaccharide concentration, the soluble aggregates disentangle. The rheological behavior of Chitlac upon treatment with boric acid was explored showing a dilatant behavior in conditions of steady flow. An uncommonly high dependence in the scaling law between the zero-shear viscosity and the concentration of Chitlac was found, i.e., η0 ∝ CCTL5.8, pointing to interesting potential implications of the present system in biomaterials development.
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Affiliation(s)
- Pasquale Sacco
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Franco Furlani
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Michela Cok
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Andrea Travan
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Massimiliano Borgogna
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Eleonora Marsich
- Department of Medical, Surgical, and Health Sciences, University of Trieste , Piazza dell'Ospitale 1, I-34127 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste , Via Licio Giorgieri 5, I-34127 Trieste, Italy
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16
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Furlani F, Sacco P, Marsich E, Donati I, Paoletti S. Highly monodisperse colloidal coacervates based on a bioactive lactose-modified chitosan: From synthesis to characterization. Carbohydr Polym 2017; 174:360-368. [PMID: 28821079 DOI: 10.1016/j.carbpol.2017.06.097] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/23/2017] [Accepted: 06/25/2017] [Indexed: 01/18/2023]
Abstract
The present contribution aims at describing the fabrication of coacervates in the nano-size range starting from a 1-deoxylactit-1-yl chitosan (in this manuscript termed as CTL60) and the multivalent anion tripolyphosphate (TPP). Colloidal coacervates have been obtained for precise values of the molar ratio of TPP to CTL60 repeating unit. Coacervation is ensured only at pH 4.5 and not at 7.4, thus demonstrating the key role of electrostatic interactions in the stabilization of the coacervates. At a variance with chitosan, CTL60 favors the formation of highly homogeneous coacervates with very low values of the polydispersity index (PDI). Moreover, CTL60 coacervates can be freeze-dried without any cryoprotectant, they can host a model molecule and are stable up to three weeks at 4°C. Conversely, such coacervates dissolve upon increasing pH and ionic strength. By considering the bioactive polycation CTL60, the present system can be suggested as a first step in the development of innovative biologically-active nano-carriers to be used as drug delivery systems.
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Affiliation(s)
- Franco Furlani
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Pasquale Sacco
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy.
| | - Eleonora Marsich
- Department of Medical, Surgical and Health Sciences, University of Trieste, Piazza dell'Ospitale 1, I-34129 Trieste, Italy
| | - Ivan Donati
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
| | - Sergio Paoletti
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 5, I-34127 Trieste, Italy
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17
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Maione M, Giostra U, Arduini J, Furlani F, Graziosi F, Lo Vullo E, Bonasoni P. Ten years of continuous observations of stratospheric ozone depleting gases at Monte Cimone (Italy)--comments on the effectiveness of the Montreal Protocol from a regional perspective. Sci Total Environ 2013; 445-446:155-64. [PMID: 23333511 DOI: 10.1016/j.scitotenv.2012.12.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 10/29/2012] [Accepted: 12/13/2012] [Indexed: 05/11/2023]
Abstract
Halogenated gases potentially harmful to the stratospheric ozone layer are monitored worldwide in order to assess compliance with the Montreal Protocol requiring a phase out of these compounds on a global scale. We present the results of long term (2002-2011) continuous observation conducted at the Mt. Cimone GAW Global Station located on the highest peak of the Italian Northern Apennines, at the border of two important regions: the Po Valley (and the Alps) to the North and the Mediterranean Basin to the South. Bi-hourly air samples of CFC-12, CFC-11, CFC-114, CFC-115, H-1211, H-1301, methyl chloroform, carbon tetrachloride, HCFC-22, HCFC-142b, HCFC-124 and methyl bromide are collected and analysed using a gas chromatograph-mass spectrometer, providing multi annual time series. In order to appreciate the effectiveness of the Montreal Protocol from a regional perspective, trends and annual growth rates of halogenated species have been calculated after identification of their baseline values. A comparison with results from other international observation programmes is also presented. Our data show that the peak in the atmospheric mixing ratios of four chlorofluorocarbons, two halons and two chlorocarbons has been reached and all these species now show a negative atmospheric trend. Pollution episodes are still occurring for species like halon-1211, methyl chloroform and carbon tetrachloride, indicating fresh emissions from the site domain which could be ascribed both to fugitive un-reported uses of the compounds and/or emissions from banks. For the hydrofluorocarbons changes in the baseline are affected by emissions from fast developing Countries in East Asia. Fresh emissions from the site domain are clearly declining. Methyl bromide, for which the Mediterranean area is an important source region, shows, in a generally decreasing trend, an emission pattern that is not consistent with the phase-out schedule of this compound, with a renewed increase in the last two years of pollution episodes.
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Affiliation(s)
- M Maione
- Department of Basic Sciences (DiSBeF), Università degli Studi di Urbino Carlo Bo, Chemical Sciences Section, Piazza Rinascimento 6, 61029, Urbino, Italy.
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18
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Maione M, Giostra U, Arduini J, Belfiore L, Furlani F, Geniali A, Mangani G, Vollmer MK, Reimann S. Localization of source regions of selected hydrofluorocarbons combining data collected at two European mountain stations. Sci Total Environ 2008; 391:232-240. [PMID: 18054996 DOI: 10.1016/j.scitotenv.2007.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Ground-based in situ measurements of hydrofluorocarbons HFC-125, HFC-134a, and HFC-152a, which are regulated under the Kyoto Protocol, are carried out at four European sites within the SOGE (System of Observation of Halogenated Greenhouse Gases in Europe) program. Concentrations measured at the high mountain stations of Jungfraujoch (Switzerland) and Mte Cimone (Italy) together with back-trajectory statistical analysis are used in order to identify potential source regions on a European scale. Combining concentration data recorded at the two sites allows to reduce one of the problem which is inherent to the back-trajectory approach, i.e. the localisation of "ghost" sources in the wake of real sources. In this way, a more reliable picture of the location of European potential source regions is given.
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Affiliation(s)
- M Maione
- Institute of Chemical Sciences, University of Urbino, Piazza Rinascimento 6, 61029 Urbino, Italy.
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Pruneri C, Damiano S, Gatti M, Pellegrini E, Furlani F. Somatoform disorder or affective disorder? Questions about a correct diagnosis. Eur Psychiatry 2002. [DOI: 10.1016/s0924-9338(02)80886-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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20
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Pruneril C, Pellegrini E, Damiano S, Furlani F. FC14.05 Anxiety and personality correlates in patient with somatoform disorder. Eur Psychiatry 2000. [DOI: 10.1016/s0924-9338(00)94410-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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21
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Abstract
A sample of 194 Italian health care-givers working in HIV/AIDS units was assessed to investigate whether there was a correlation between individual variables (socio-demographic and occupational characteristics, personality traits, anxiety, depression, attitudes and emotional reactions) and burnout and job satisfaction. For this proposal were used the Maslach Burnout Inventory (MBI), a socio-demographic and occupational characteristics schedule. Sixteen Personality Factor Questionnaire, Ipat Anxiety Scale, Ipat Depression Scale and AIDS Impact Questionnaire. A principal component analysis on frequency subscales scores of MBI extracted two independent dimensions labelled 'burnout' and 'personal accomplishment'. The results suggested important correlations among 'burnout', 'personal accomplishment', anxiety and depression. Age of care-givers was negatively correlated with 'burnout' and practical nurses were less personally accomplished. Anxiety, depression, emotional reactions, attitudes, ego strength, and the aptitude for interpersonal relationships and to team work were significant factors in outlining a profile of highly 'burned out' and 'personally accomplished' HIV/AIDS health care-givers. These results suggest the development of precise strategies of prevention, intervention and treatment of burnout considering not only the importance of occupational and institutional characteristics but also of individuals ones.
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Affiliation(s)
- M L Bellani
- Department of Medical Psychology, University of Pavia School of Medicine at Varese, Regional Psychological AIDS Centre, Varese, Italy
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