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Lanzillotti C, Iaquinta MR, De Pace R, Mosaico M, Patergnani S, Giorgi C, Tavoni M, Dapporto M, Sprio S, Tampieri A, Montesi M, Martini F, Mazzoni E. Osteosarcoma cell death induced by innovative scaffolds doped with chemotherapeutics. J Cell Physiol 2024. [PMID: 38591855 DOI: 10.1002/jcp.31256] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 04/10/2024]
Abstract
Osteosarcoma (OS) cancer treatments include systemic chemotherapy and surgical resection. In the last years, novel treatment approaches have been proposed, which employ a drug-delivery system to prevent offside effects and improves treatment efficacy. Locally delivering anticancer compounds improves on high local concentrations with more efficient tumour-killing effect, reduced drugs resistance and confined systemic effects. Here, the synthesis of injectable strontium-doped calcium phosphate (SrCPC) scaffold was proposed as drug delivery system to combine bone tissue regeneration and anticancer treatment by controlled release of methotrexate (MTX) and doxorubicin (DOX), coded as SrCPC-MTX and SrCPC-DOX, respectively. The drug-loaded cements were tested in an in vitro model of human OS cell line SAOS-2, engineered OS cell line (SAOS-2-eGFP) and U2-OS. The ability of doped scaffolds to induce OS cell death and apoptosis was assessed analysing cell proliferation and Caspase-3/7 activities, respectively. To determine if OS cells grown on doped-scaffolds change their migratory ability and invasiveness, a wound-healing assay was performed. In addition, the osteogenic potential of SrCPC material was evaluated using human adipose derived-mesenchymal stem cells. Osteogenic markers such as (i) the mineral matrix deposition was analysed by alizarin red staining; (ii) the osteocalcin (OCN) protein expression was investigated by enzyme-linked immunosorbent assay test, and (iii) the osteogenic process was studied by real-time polymerase chain reaction array. The delivery system induced cell-killing cytotoxic effects and apoptosis in OS cell lines up to Day 7. SrCPC demonstrates a good cytocompatibility and it induced upregulation of osteogenic genes involved in the skeletal development pathway, together with OCN protein expression and mineral matrix deposition. The proposed approach, based on the local, sustained release of anticancer drugs from nanostructured biomimetic drug-loaded cements is promising for future therapies aiming to combine bone regeneration and anticancer local therapy.
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Affiliation(s)
- Carmen Lanzillotti
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Maria Rosa Iaquinta
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Raffaella De Pace
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Maria Mosaico
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Simone Patergnani
- Laboratories of Cell Signalling, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Carlotta Giorgi
- Laboratories of Cell Signalling, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Marta Tavoni
- Institute of Science, Technology and Sustainability for Ceramics, National Research Council of Italy (ISSMC-CNR, former ISTEC-CNR), Faenza, Italy
| | - Massimiliano Dapporto
- Institute of Science, Technology and Sustainability for Ceramics, National Research Council of Italy (ISSMC-CNR, former ISTEC-CNR), Faenza, Italy
| | - Simone Sprio
- Institute of Science, Technology and Sustainability for Ceramics, National Research Council of Italy (ISSMC-CNR, former ISTEC-CNR), Faenza, Italy
| | - Anna Tampieri
- Institute of Science, Technology and Sustainability for Ceramics, National Research Council of Italy (ISSMC-CNR, former ISTEC-CNR), Faenza, Italy
| | - Monica Montesi
- Institute of Science, Technology and Sustainability for Ceramics, National Research Council of Italy (ISSMC-CNR, former ISTEC-CNR), Faenza, Italy
| | - Fernanda Martini
- Laboratories of Cell Biology and Molecular Genetics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
- Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, Ferrara, Italy
| | - Elisa Mazzoni
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
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Tampieri A, Kon E, Sandri M, Campodoni E, Dapporto M, Sprio S. Marine-Inspired Approaches as a Smart Tool to Face Osteochondral Regeneration. Mar Drugs 2023; 21:md21040212. [PMID: 37103351 PMCID: PMC10145639 DOI: 10.3390/md21040212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
The degeneration of osteochondral tissue represents one of the major causes of disability in modern society and it is expected to fuel the demand for new solutions to repair and regenerate the damaged articular joints. In particular, osteoarthritis (OA) is the most common complication in articular diseases and a leading cause of chronic disability affecting a steady increasing number of people. The regeneration of osteochondral (OC) defects is one of the most challenging tasks in orthopedics since this anatomical region is composed of different tissues, characterized by antithetic features and functionalities, in tight connection to work together as a joint. The altered structural and mechanical joint environment impairs the natural tissue metabolism, thus making OC regeneration even more challenging. In this scenario, marine-derived ingredients elicit ever-increased interest for biomedical applications as a result of their outstanding mechanical and multiple biologic properties. The review highlights the possibility to exploit such unique features using a combination of bio-inspired synthesis process and 3D manufacturing technologies, relevant to generate compositionally and structurally graded hybrid constructs reproducing the smart architecture and biomechanical functions of natural OC regions.
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Dapporto M, Tavoni M, Restivo E, Carella F, Bruni G, Mercatali L, Visai L, Tampieri A, Iafisco M, Sprio S. Strontium-doped apatitic bone cements with tunable antibacterial and antibiofilm ability. Front Bioeng Biotechnol 2022; 10:969641. [PMID: 36568303 PMCID: PMC9780487 DOI: 10.3389/fbioe.2022.969641] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 11/25/2022] [Indexed: 12/13/2022] Open
Abstract
Injectable calcium phosphate cements (CPCs) represent promising candidates for the regeneration of complex-shape bone defects, thanks to self-hardening ability, bioactive composition and nanostructure offering high specific surface area for cell attachment and conduction. Such features make CPCs also interesting for functionalization with various biomolecules, towards the generation of multifunctional devices with enhanced therapeutic ability. In particular, strontium-doped CPCs have been studied in the last years due to the intrinsic antiosteoporotic character of strontium. In this work, a SrCPC previously reported as osteointegrative and capable to modulate the fate of bone cells was enriched with hydroxyapatite nanoparticles (HA-NPs) functionalized with tetracycline (TC) to provide antibacterial activity. We found that HA-NPs functionalized with TC (NP-TC) can act as modulator of the drug release profile when embedded in SrCPCs, thus providing a sustained and tunable TC release. In vitro microbiological tests on Escherichia coli and Staphylococcus aureus strains proved effective bacteriostatic and bactericidal properties, especially for the NP-TC loaded SrCPC formulations. Overall, our results indicate that the addition of NP-TC on CPC acted as effective modulator towards a tunable drug release control in the treatment of bone infections or cancers.
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Affiliation(s)
- Massimiliano Dapporto
- Institute of Science, Technology and Sustainability for Ceramics (ISSMC) (Former ISTEC), National Research Council (CNR), Faenza, Italy
| | - Marta Tavoni
- Institute of Science, Technology and Sustainability for Ceramics (ISSMC) (Former ISTEC), National Research Council (CNR), Faenza, Italy
| | - Elisa Restivo
- Molecular Medicine Department, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia, Italy
| | - Francesca Carella
- Institute of Science, Technology and Sustainability for Ceramics (ISSMC) (Former ISTEC), National Research Council (CNR), Faenza, Italy
| | - Giovanna Bruni
- Department of Chemistry, Physical Chemistry Section, Center for Colloid and Surfaces Science, University of Pavia, Pavia, Italy
| | - Laura Mercatali
- Osteoncology Unit, Bioscience Laboratory, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, Meldola, Italy
| | - Livia Visai
- Institute of Science, Technology and Sustainability for Ceramics (ISSMC) (Former ISTEC), National Research Council (CNR), Faenza, Italy,Molecular Medicine Department, Center for Health Technologies, UdR INSTM, University of Pavia, Pavia, Italy,Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri. IRCCS, Pavia, Italy
| | - Anna Tampieri
- Institute of Science, Technology and Sustainability for Ceramics (ISSMC) (Former ISTEC), National Research Council (CNR), Faenza, Italy
| | - Michele Iafisco
- Institute of Science, Technology and Sustainability for Ceramics (ISSMC) (Former ISTEC), National Research Council (CNR), Faenza, Italy,*Correspondence: Michele Iafisco, ; Simone Sprio,
| | - Simone Sprio
- Institute of Science, Technology and Sustainability for Ceramics (ISSMC) (Former ISTEC), National Research Council (CNR), Faenza, Italy,*Correspondence: Michele Iafisco, ; Simone Sprio,
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Ruffini A, Sandri M, Dapporto M, Campodoni E, Tampieri A, Sprio S. Nature-Inspired Unconventional Approaches to Develop 3D Bioceramic Scaffolds with Enhanced Regenerative Ability. Biomedicines 2021; 9:916. [PMID: 34440120 PMCID: PMC8389705 DOI: 10.3390/biomedicines9080916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 07/01/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022] Open
Abstract
Material science is a relevant discipline in support of regenerative medicine. Indeed, tissue regeneration requires the use of scaffolds able to guide and sustain the natural cell metabolism towards tissue regrowth. This need is particularly important in musculoskeletal regeneration, such as in the case of diseased bone or osteocartilaginous regions for which calcium phosphate-based scaffolds are considered as the golden solution. However, various technological barriers related to conventional ceramic processing have thus far hampered the achievement of biomimetic and bioactive scaffolds as effective solutions for still unmet clinical needs in orthopaedics. Driven by such highly impacting socioeconomic needs, new nature-inspired approaches promise to make a technological leap forward in the development of advanced biomaterials. The present review illustrates ion-doped apatites as biomimetic materials whose bioactivity resides in their unstable chemical composition and nanocrystallinity, both of which are, however, destroyed by the classical sintering treatment. In the following, recent nature-inspired methods preventing the use of high-temperature treatments, based on (i) chemically hardening bioceramics, (ii) biomineralisation process, and (iii) biomorphic transformations, are illustrated. These methods can generate products with advanced biofunctional properties, particularly biomorphic transformations represent an emerging approach that could pave the way to a technological leap forward in medicine and also in various other application fields.
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Affiliation(s)
| | | | | | | | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council, 48018 Faenza, Italy; (A.R.); (M.S.); (M.D.); (E.C.)
| | - Simone Sprio
- Institute of Science and Technology for Ceramics, National Research Council, 48018 Faenza, Italy; (A.R.); (M.S.); (M.D.); (E.C.)
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Tampieri A, Sandri M, Iafisco M, Panseri S, Montesi M, Adamiano A, Dapporto M, Campodoni E, Dozio SM, Degli Esposti L, Sprio S. Nanotechnological approach and bio-inspired materials to face degenerative diseases in aging. Aging Clin Exp Res 2021; 33:805-821. [PMID: 31595428 DOI: 10.1007/s40520-019-01365-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 07/20/2019] [Accepted: 09/21/2019] [Indexed: 12/22/2022]
Abstract
The aging of the world population is increasingly claimed as an alarming situation, since an ever-raising number of persons in advanced age but still physically active is expected to suffer from invalidating and degenerative diseases. The impairment of the endogenous healing potential provoked by the aging requires the development of more effective and personalized therapies, based on new biomaterials and devices able to direct the cell fate to stimulate and sustain the regrowth of damaged or diseased tissues. To obtain satisfactory results, also in cases where the cell senescence, typical of the elderly, makes the regeneration process harder and longer, the new solutions have to possess excellent ability to mimic the physiological extracellular environment and thus exert biomimetic stimuli on stem cells. To this purpose, the "biomimetic concept" is today recognized as elective to fabricate bioactive and bioresorbable devices such as hybrid osteochondral scaffolds and bioactive bone cements closely resembling the natural hard tissues and with enhanced regenerative ability. The review will illustrate some recent results related to these new biomimetic materials developed for application in different districts of the musculoskeletal system, namely bony, osteochondral and periodontal regions, and the spine. Further, it will be shown how new bioactive and superparamagnetic calcium phosphate nanoparticles can give enhanced results in cardiac regeneration and cancer therapy. Since tissue regeneration will be a major demand in the incoming decades, the high potential of biomimetic materials and devices is promising to significantly increase the healing rate and improve the clinical outcomes even in aged patients.
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Affiliation(s)
- Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Monica Sandri
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Michele Iafisco
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Silvia Panseri
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Monica Montesi
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Alessio Adamiano
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Massimiliano Dapporto
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Elisabetta Campodoni
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Samuele M Dozio
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Lorenzo Degli Esposti
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy
| | - Simone Sprio
- Institute of Science and Technology for Ceramics, National Research Council, Via Granarolo 64, 48018, Faenza, RA, Italy.
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Scialla S, Carella F, Dapporto M, Sprio S, Piancastelli A, Palazzo B, Adamiano A, Degli Esposti L, Iafisco M, Piccirillo C. Mussel Shell-Derived Macroporous 3D Scaffold: Characterization and Optimization Study of a Bioceramic from the Circular Economy. Mar Drugs 2020; 18:E309. [PMID: 32545532 PMCID: PMC7344406 DOI: 10.3390/md18060309] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/05/2020] [Accepted: 06/09/2020] [Indexed: 11/16/2022] Open
Abstract
Fish industry by-products constitute an interesting platform for the extraction and recovery of valuable compounds in a circular economy approach. Among them, mussel shells could provide a calcium-rich source for the synthesis of hydroxyapatite (HA) bioceramics. In this work, HA nanoparticles have been successfully synthesized starting from mussel shells (Mytilus edulis) with a two steps process based on thermal treatment to convert CaCO3 in CaO and subsequent wet precipitation with a phosphorus source. Several parameters were studied, such as the temperature and gaseous atmosphere of the thermal treatment as well as the use of two different phosphorus-containing reagents in the wet precipitation. Data have revealed that the characteristics of the powders can be tailored, changing the conditions of the process. In particular, the use of (NH4)2HPO4 as the phosphorus source led to HA nanoparticles with a high crystallinity degree, while smaller nanoparticles with a higher surface area were obtained when H3PO4 was employed. Further, a selected HA sample was synthesized at the pilot scale; then, it was employed to fabricate porous 3D scaffolds using the direct foaming method. A highly porous scaffold with open and interconnected porosity associated with good mechanical properties (i.e., porosity in the range 87-89%, pore size in the range 50-300 μm, and a compressive strength σ = 0.51 ± 0.14 MPa) suitable for bone replacement was achieved. These results suggest that mussel shell by-products are effectively usable for the development of compounds of high added value in the biomedical field.
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Affiliation(s)
- Stefania Scialla
- Institute of Nanotechnology (NANOTEC), National Research Council (CNR), Campus Ecoteckne, Via Monteroni, 73100 Lecce, Italy;
| | - Francesca Carella
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018 Faenza, Italy; (F.C.); (M.D.); (S.S.); (A.P.); (A.A.); (L.D.E.)
| | - Massimiliano Dapporto
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018 Faenza, Italy; (F.C.); (M.D.); (S.S.); (A.P.); (A.A.); (L.D.E.)
| | - Simone Sprio
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018 Faenza, Italy; (F.C.); (M.D.); (S.S.); (A.P.); (A.A.); (L.D.E.)
| | - Andreana Piancastelli
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018 Faenza, Italy; (F.C.); (M.D.); (S.S.); (A.P.); (A.A.); (L.D.E.)
| | - Barbara Palazzo
- Ghimas SpA, C/O Ditech S.c.a.r.l., Campus Ecotekne, 73100 Lecce, Italy;
| | - Alessio Adamiano
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018 Faenza, Italy; (F.C.); (M.D.); (S.S.); (A.P.); (A.A.); (L.D.E.)
| | - Lorenzo Degli Esposti
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018 Faenza, Italy; (F.C.); (M.D.); (S.S.); (A.P.); (A.A.); (L.D.E.)
| | - Michele Iafisco
- Institute of Science and Technology for Ceramics (ISTEC), National Research Council (CNR), Via Granarolo 64, 48018 Faenza, Italy; (F.C.); (M.D.); (S.S.); (A.P.); (A.A.); (L.D.E.)
| | - Clara Piccirillo
- Institute of Nanotechnology (NANOTEC), National Research Council (CNR), Campus Ecoteckne, Via Monteroni, 73100 Lecce, Italy;
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Krishnakumar GS, Gostynska N, Campodoni E, Dapporto M, Montesi M, Panseri S, Tampieri A, Kon E, Marcacci M, Sprio S, Sandri M. Ribose mediated crosslinking of collagen-hydroxyapatite hybrid scaffolds for bone tissue regeneration using biomimetic strategies. Materials Science and Engineering: C 2017; 77:594-605. [DOI: 10.1016/j.msec.2017.03.255] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/25/2017] [Accepted: 03/26/2017] [Indexed: 01/27/2023]
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Montesi M, Panseri S, Dapporto M, Tampieri A, Sprio S. Sr-substituted bone cements direct mesenchymal stem cells, osteoblasts and osteoclasts fate. PLoS One 2017; 12:e0172100. [PMID: 28196118 PMCID: PMC5308610 DOI: 10.1371/journal.pone.0172100] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 01/31/2017] [Indexed: 12/14/2022] Open
Abstract
Strontium-substituted apatitic bone cements enriched with sodium alginate were developed as a potential modulator of bone cells fate. The biological impact of the bone cement were investigated in vitro through the study of the effect of the nanostructured apatitic composition and the doping of strontium on mesenchymal stem cells, pre-osteoblasts and osteoclasts behaviours. Up to 14 days of culture the bone cells viability, proliferation, morphology and gene expression profiles were evaluated. The results showed that different concentrations of strontium were able to evoke a cell-specific response, in fact an inductive effect on mesenchymal stem cells differentiation and pre-osteoblasts proliferation and an inhibitory effect on osteoclasts activity were observed. Moreover, the apatitic structure of the cements provided a biomimetic environment suitable for bone cells growth. Therefore, the combination of biological features of this bone cement makes it as promising biomaterials for tissue regeneration.
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Affiliation(s)
- Monica Montesi
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Silvia Panseri
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Massimiliano Dapporto
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
| | - Simone Sprio
- Institute of Science and Technology for Ceramics, National Research Council, Faenza, Ravenna, Italy
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Sprio S, Dapporto M, Montesi M, Panseri S, Lattanzi W, Pola E, Logroscino G, Tampieri A. Novel Osteointegrative Sr-Substituted Apatitic Cements Enriched with Alginate. Materials (Basel) 2016; 9:E763. [PMID: 28773884 PMCID: PMC5457115 DOI: 10.3390/ma9090763] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/29/2016] [Accepted: 09/02/2016] [Indexed: 12/16/2022]
Abstract
The present work describes the synthesis of novel injectable, self-setting bone cements made of strontium-substituted hydroxyapatite (Sr-HA), obtained by single-phase calcium phosphate precursors doped with different amounts of strontium and enriched with alginate. The addition of alginate improved the injectability, cohesion, and compression strength of the cements, without affecting the hardening process. A Sr-HA cement exhibiting adequate hardening times and mechanical strength for clinical applications was further tested in vivo in a rabbit model, in comparison with a commercial calcium phosphate cement, revealing the maintenance of biomimetic composition and porous microstructure even after one month in vivo, as well as enhanced ability to induce new bone formation and penetration.
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Affiliation(s)
- Simone Sprio
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, Faenza 48018, Italy.
| | - Massimiliano Dapporto
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, Faenza 48018, Italy.
| | - Monica Montesi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, Faenza 48018, Italy.
| | - Silvia Panseri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, Faenza 48018, Italy.
| | - Wanda Lattanzi
- Institute of Anatomy and Cell Biology, Università Cattolica del Sacro Cuore, Largo F Vito, 1, Rome 00168, Italy.
- Latium Musculoskeletal Tissue Bank, Largo F Vito, 1, Rome 00168, Italy.
| | - Enrico Pola
- Orthopaedics and Traumatology, Università Cattolica del Sacro Cuore, Largo F Vito, 1, Rome 00168, Italy.
| | - Giandomenico Logroscino
- Orthopaedics and Traumatology, Università Cattolica del Sacro Cuore, Largo F Vito, 1, Rome 00168, Italy.
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Via Granarolo 64, Faenza 48018, Italy.
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Sprio S, Guicciardi S, Dapporto M, Melandri C, Tampieri A. Synthesis and mechanical behavior of β-tricalcium phosphate/titania composites addressed to regeneration of long bone segments. J Mech Behav Biomed Mater 2013; 17:1-10. [DOI: 10.1016/j.jmbbm.2012.07.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 07/17/2012] [Accepted: 07/22/2012] [Indexed: 11/15/2022]
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Cunha C, Sprio S, Panseri S, Dapporto M, Marcacci M, Tampieri A. High biocompatibility and improved osteogenic potential of novel Ca-P/titania composite scaffolds designed for regeneration of load-bearing segmental bone defects. J Biomed Mater Res A 2012; 101:1612-9. [PMID: 23172612 DOI: 10.1002/jbm.a.34479] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 09/28/2012] [Accepted: 10/04/2012] [Indexed: 11/07/2022]
Abstract
Regeneration of load-bearing bone segments is still an open challenge due to the lack of biomaterials mimicking natural bone with a suitable chemicophysical and mechanical performance. This study proposes ceramic bone scaffolds made of β-tricalcium phosphate (β-TCP) and titania (TiO2 ), developed from hydroxyapatite (HA) and TiO2 starting nanopowders, which exhibit high and interconnected macroporosity (>70 vol %). The scaffold composition was designed to achieve a synergistic effect of bioactivity/resorbability and mechanical properties suitable for load-bearing regenerative applications. The analysis of the morphology, structure, and mechanical strength of the scaffolds resulted in compression strength nearly twice that of commercially available HA bone grafts with similar structure (Engipore(®)). Biological characterization was carried out for human MG-63 osteoblast-like cells proliferation, activity, attachment, and viability. β-TCP/TiO2 scaffolds show high proliferation rate, high viability, and high colonization rates. Moreover, an increased activity of the osteogenic marker alkaline phosphatase (ALP) was found. These results demonstrate that β-TCP/TiO2 scaffolds have good potential as osteogenically active load-bearing scaffolds; moreover, given the high and interconnected macroporosity as well as the resorbability properties of β-TCP, these scaffolds may enhance in vivo osteointegration and promote the formation of new organized bone, thus resulting in very promising biomimetic scaffolds for long bone regeneration.
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Affiliation(s)
- Carla Cunha
- Laboratory of Bioceramics and Bio-hybrid Composites, Institute of Science and Technology for Ceramics, National Research Council, Faenza 48018, Italy.
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Vedovato M, De Paoli Vitali E, Dapporto M, Salvatorelli G. Defective erythropoietin production in the anaemia of malaria. Nephrol Dial Transplant 1999; 14:1043-4. [PMID: 10328513 DOI: 10.1093/ndt/14.4.1043] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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de Paoli Vitali E, Ricci G, Perini L, Malacarne F, Vedovato M, Guerra G, Dapporto M, Gilli P. The determination of plasma transferrin receptor as good index of erythropoietic activity in renal anemia and after renal transplantation. Nephron Clin Pract 1996; 72:552-6. [PMID: 8730420 DOI: 10.1159/000188938] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Both the plasma determinations of erythropoietic (EPO) and transferrin receptor (TfR) would provide a good characterization of anemia especially when mixed erythron disorders underlie, such as in renal failure. Immunologic assays of EPO and TfR, as well as standard hematologic determinations (hematocrit, reticulocyte count, serum iron, transferrin, ferritin) were performed in patients with chronic renal failure (CRF), in regular dialysis treatment (RDT) and in transplanted (TX) patients. In nonanemic TX patients both EPO and TfR ranged normally, whereas in anemic TX ones (Hct < 40%) both values were increased suggesting the physiologic response both of the kidney and of the erythron to decreased red cell mass. In transitory posttransplant erythrocytosis the increased values of TfR, with normal EPO values, would hypothesize a defective feedback to EPO release. Both EPO and TfR values were found increased in TX patients with adult polycystic kidney disease with persistent erythrocytosis (Hct > 50%), thus confirming previous observations. In CRF and RDT patients, all anemic, both EPO and TfR were normal, even though significantly low with respect to the degree of anemia. In RDT seriously anemic patients, the administration of recombinant human EPO induced different patterns of bone marrow response. We conclude that the determination of TfR would provide further information on renal anemia since the receptor increase mostly preceded the rise of Hct, evidencing those patients who will not have an effective bone marrow response to the therapy.
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Manfredini R, Salmi R, Gallerani M, Portaluppi F, Guerra G, Scapoli C, Dapporto M, Degani D, Maestri A, Franceschini F. Haematological profile in cancer patients: analysis of circadian pattern. J Int Med Res 1994; 22:343-9. [PMID: 7895898 DOI: 10.1177/030006059402200606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
This study was intended to evaluate whether unusual circadian patterns in blood cells exist in cancer patients. Ten patients (five men and five women) suffering from advanced malignancy were compared with a control group of apparently healthy volunteers, of comparable age and sex. After synchronization of daily activities, meals and rest of the two groups, blood samples were taken four times (at 8.00 a.m., 12.00 a.m., 4.00 p.m. and 8.00 p.m.) in a single day. The total red and white cell counts, haemoglobin, platelet count, and neutrophil, lymphocyte, eosinophil, monocyte and basophil differential white cell counts were analysed by both conventional (Student's t-test; multifactorial analysis of variance) and inferential statistics (single and mean cosinor). The average values for platelets (P = 0.04), white blood cells (P = 0.004) and lymphocytes (P << 0.001) showed significant changes with time, independently of disease state. Cosinor analysis indicated a circadian rhythmicity for haemoglobin (P = 0.02), eosinophils (P = 0.014), and lymphocytes (P = 0.001) in healthy subjects, and for eosinophils only (P = 0.024) in cancer patients.
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Affiliation(s)
- R Manfredini
- Institute of Internal Medicine, University of Ferrara, Italy
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