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Contessi Negrini N, Ricci C, Bongiorni F, Trombi L, D’Alessandro D, Danti S, Farè S. An Osteosarcoma Model by 3D Printed Polyurethane Scaffold and In Vitro Generated Bone Extracellular Matrix. Cancers (Basel) 2022; 14:cancers14082003. [PMID: 35454909 PMCID: PMC9025808 DOI: 10.3390/cancers14082003] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/10/2022] [Accepted: 04/11/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Development of new therapeutics to treat osteosarcoma is fundamental to decreasing its current health impact. 3D in vitro models are gaining tremendous momentum as, compared to traditional 2D in vitro models and in vivo models, can speed up new treatment discovery and provide clarification of the pathology development, by ultimately offering a reproducible and biomimetic tool. However, engineering a 3D osteosarcoma in vitro model is challenging, since the reliability of the models strictly depends on their ability to correctly mimic the physical, mechanical, and biological properties of the pathological tissue to be replicated. Here, we designed 3D printed polyurethane scaffolds enriched by in vitro pre-generated bone extracellular matrix, synthesized by osteo-differentiated human mesenchymal stromal cells, to replicate in vitro an osteosarcoma model, which can be potentially used to study tumor progression and to assess new treatments. Abstract Osteosarcoma is a primary bone tumor characterized by a dismal prognosis, especially in the case of recurrent disease or metastases. Therefore, tools to understand in-depth osteosarcoma progression and ultimately develop new therapeutics are urgently required. 3D in vitro models can provide an optimal option, as they are highly reproducible, yet sufficiently complex, thus reliable alternatives to 2D in vitro and in vivo models. Here, we describe 3D in vitro osteosarcoma models prepared by printing polyurethane (PU) by fused deposition modeling, further enriched with human mesenchymal stromal cell (hMSC)-secreted biomolecules. We printed scaffolds with different morphologies by changing their design (i.e., the distance between printed filaments and printed patterns) to obtain different pore geometry, size, and distribution. The printed PU scaffolds were stable during in vitro cultures, showed adequate porosity (55–67%) and tunable mechanical properties (Young’s modulus ranging in 0.5–4.0 MPa), and resulted in cytocompatible. We developed the in vitro model by seeding SAOS-2 cells on the optimal PU scaffold (i.e., 0.7 mm inter-filament distance, 60° pattern), by testing different pre-conditioning factors: none, undifferentiated hMSC-secreted, and osteo-differentiated hMSC-secreted extracellular matrix (ECM), which were obtained by cell lysis before SAOS-2 seeding. Scaffolds pre-cultured with osteo-differentiated hMSCs, subsequently lysed, and seeded with SAOS-2 cells showed optimal colonization, thus disclosing a suitable biomimetic microenvironment for osteosarcoma cells, which can be useful both in tumor biology study and, possibly, treatment.
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Affiliation(s)
- Nicola Contessi Negrini
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20131 Milan, Italy; (F.B.); (S.F.)
- Correspondence: (N.C.N.); (S.D.)
| | - Claudio Ricci
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy;
| | - Federica Bongiorni
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20131 Milan, Italy; (F.B.); (S.F.)
| | - Luisa Trombi
- Department of Surgical, Medical, Molecular Pathology, University of Pisa, 56126 Pisa, Italy; (L.T.); (D.D.)
| | - Delfo D’Alessandro
- Department of Surgical, Medical, Molecular Pathology, University of Pisa, 56126 Pisa, Italy; (L.T.); (D.D.)
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy;
- Correspondence: (N.C.N.); (S.D.)
| | - Silvia Farè
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20131 Milan, Italy; (F.B.); (S.F.)
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Gigante V, Coltelli MB, Vannozzi A, Panariello L, Fusco A, Trombi L, Donnarumma G, Danti S, Lazzeri A. Flat Die Extruded Biocompatible Poly(Lactic Acid) (PLA)/Poly(Butylene Succinate) (PBS) Based Films. Polymers (Basel) 2019; 11:E1857. [PMID: 31717937 PMCID: PMC6918134 DOI: 10.3390/polym11111857] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 09/24/2019] [Revised: 10/30/2019] [Accepted: 11/06/2019] [Indexed: 12/15/2022] Open
Abstract
Biodegradable polymers are promising materials for films and sheets used in many widely diffused applications like packaging, personal care products and sanitary products, where the synergy of high biocompatibility and reduced environmental impact can be particularly significant. Plasticized poly(lactic acid) (PLA)/poly(butylene succinate) (PBS) blend-based films, showing high cytocompatibility and improved flexibility than pure PLA, were prepared by laboratory extrusion and their processability was controlled by the use of a few percent of a commercial melt strength enhancer, based on acrylic copolymers and micro-calcium carbonate. The melt strength enhancer was also found effective in reducing the crystallinity of the films. The process was upscaled by producing flat die extruded films in which elongation at break and tear resistance were improved than pure PLA. The in vitro biocompatibility, investigated through the contact of flat die extruded films with cells, namely, keratinocytes and mesenchymal stromal cells, resulted improved with respect to low density polyethylene (LDPE). Moreover, the PLA-based materials were able to affect immunomodulatory behavior of cells and showed a slight indirect anti-microbial effect. These properties could be exploited in several applications, where the contact with skin and body is relevant.
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Affiliation(s)
- Vito Gigante
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Maria-Beatrice Coltelli
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Alessandro Vannozzi
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Luca Panariello
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
| | - Alessandra Fusco
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Luisa Trombi
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- OTOLAB, Azienda Ospedaliero-Universitaria Pisana (AOUP), 56122 Pisa, Italy
| | - Giovanna Donnarumma
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
- OTOLAB, Azienda Ospedaliero-Universitaria Pisana (AOUP), 56122 Pisa, Italy
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (V.G.); (A.V.); (L.P.); (S.D.); (A.L.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy; (A.F.); (L.T.); (G.D.)
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Danti S, Trombi L, Fusco A, Azimi B, Lazzeri A, Morganti P, Coltelli MB, Donnarumma G. Chitin Nanofibrils and Nanolignin as Functional Agents in Skin Regeneration. Int J Mol Sci 2019; 20:ijms20112669. [PMID: 31151285 PMCID: PMC6600226 DOI: 10.3390/ijms20112669] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [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: 04/28/2019] [Revised: 05/22/2019] [Accepted: 05/28/2019] [Indexed: 11/16/2022] Open
Abstract
Chitin and lignin, by-products of fishery and plant biomass, can be converted to innovative high value bio- and eco-compatible materials. On the nanoscale, high antibacterial, anti-inflammatory, cicatrizing and anti-aging activity is obtained by controlling their crystalline structure and purity. Moreover, electropositive chitin nanofibrlis (CN) can be combined with electronegative nanolignin (NL) leading to microcapsule-like systems suitable for entrapping both hydrophilic and lipophilic molecules. The aim of this study was to provide morphological, physico-chemical, thermogravimetric and biological characterization of CN, NL, and CN-NL complexes, which were also loaded with glycyrrhetinic acid (GA) as a model of a bioactive molecule. CN-NL and CN-NL/GA were thermally stable up to 114 °C and 127 °C, respectively. The compounds were administered to in vitro cultures of human keratinocytes (HaCaT cells) and human mesenchymal stromal cells (hMSCs) for potential use in skin contact applications. Cell viability, cytokine expression and effects on hMSC multipotency were studied. For each component, CN, NL, CN-NL and CN-NL/GA, non-toxic concentrations towards HaCaT cells were identified. In the keratinocyte model, the proinflammatory cytokines IL-1α, IL-1 β, IL-6, IL-8 and TNF-α that resulted were downregulated, whereas the antimicrobial peptide human β defensin-2 was upregulated by CN-LN. The hMSCs were viable, and the use of these complexes did not modify the osteo-differentiation capability of these cells. The obtained findings demonstrate that these biocomponents are cytocompatible, show anti-inflammatory activity and may serve for the delivery of biomolecules for skin care and regeneration.
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Affiliation(s)
- Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy.
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy.
| | - Luisa Trombi
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy.
| | - Alessandra Fusco
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy.
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy.
| | - Bahareh Azimi
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy.
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy.
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy.
| | - Pierfrancesco Morganti
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy.
| | - Maria-Beatrice Coltelli
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy.
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy.
| | - Giovanna Donnarumma
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), 50121 Florence, Italy.
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138 Naples, Italy.
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Mota C, Milazzo M, Panetta D, Trombi L, Gramigna V, Salvadori PA, Giannotti S, Bruschini L, Stefanini C, Moroni L, Berrettini S, Danti S. 3D fiber deposited polymeric scaffolds for external auditory canal wall. J Mater Sci Mater Med 2018; 29:63. [PMID: 29736776 DOI: 10.1007/s10856-018-6071-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
The external auditory canal (EAC) is an osseocartilaginous structure extending from the auricle to the eardrum, which can be affected by congenital, inflammatory, and neoplastic diseases, thus reconstructive materials are needed. Current biomaterial-based approaches for the surgical reconstruction of EAC posterior wall still suffer from resorption (biological) and extrusion (synthetic). In this study, 3D fiber deposited scaffolds based on poly(ethylene oxide terephthalate)/poly(butylene terephthalate) were designed and fabricated to replace the EAC wall. Fiber diameter and scaffold porosity were optimized, leading to 200 ± 33 µm and 55% ± 5%, respectively. The mechanical properties were evaluated, resulting in a Young's modulus of 25.1 ± 7.0 MPa. Finally, the EAC scaffolds were tested in vitro with osteo-differentiated human mesenchymal stromal cells (hMSCs) with different seeding methods to produce homogeneously colonized replacements of interest for otologic surgery. This study demonstrated the fabrication feasibility of EAC wall scaffolds aimed to match several important requirements for biomaterial application to the ear under the Tissue Engineering paradigm, including shape, porosity, surface area, mechanical properties and favorable in vitro interaction with osteoinduced hMSCs. This study demonstrated the fabrication feasibility of outer ear canal wall scaffolds via additive manufacturing. Aimed to match several important requirements for biomaterial application to ear replacements under the Tissue Engineering paradigm, including shape, porosity and pore size, surface area, mechanical properties and favorable in vitro interaction with osteo-differentiated mesenchymal stromal cells.
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Affiliation(s)
- Carlos Mota
- Institute for Technology Inspired Regenerative Medicine (MERLN), Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
| | - Mario Milazzo
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pontedera, PI, Italy
| | - Daniele Panetta
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | - Luisa Trombi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Vera Gramigna
- Institute of Bioimaging and Molecular Physiology, National Research Council (CNR), Germaneto, CZ, Italy
| | - Piero A Salvadori
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | - Stefano Giannotti
- Department of Medical and Surgical Sciences and Neurosciences, University of Siena, Siena, Italy
| | - Luca Bruschini
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, Pisa, Italy
| | - Cesare Stefanini
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pontedera, PI, Italy
| | - Lorenzo Moroni
- Institute for Technology Inspired Regenerative Medicine (MERLN), Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
| | - Stefano Berrettini
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, Pisa, Italy
| | - Serena Danti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pontedera, PI, Italy.
- Dept. of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, Pisa, Italy.
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Savelli S, Trombi L, D'Alessandro D, Moscato S, Pacini S, Giannotti S, Lapi S, Scatena F, Petrini M. Pooled human serum: A new culture supplement for bioreactor-based cell therapies. Preliminary results. Cytotherapy 2018; 20:556-563. [PMID: 29429942 DOI: 10.1016/j.jcyt.2017.12.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 07/25/2017] [Revised: 12/22/2017] [Accepted: 12/24/2017] [Indexed: 01/19/2023]
Abstract
BACKGROUND Bone Marrow MSCs are an appealing source for several cell-based therapies. Many bioreactors, as the Quantum Cell Expansion System, have been developed to generate a large number of MSCs under Good Manufacturing Practice conditions by using Human Platelet Lysate (HPL). Previously we isolated in the human bone marrow a novel cell population, named Mesodermal Progenitor Cells (MPCs), which we identified as precursors of MSCs. MPCs could represent an important cell source for regenerative medicine applications. As HPL gives rise to a homogeneus MSC population, limiting the harvesting of other cell types, in this study we investigated the efficacy of pooled human AB serum (ABS) to provide clinically relevant numbers of both MSCs and MPCs for regenerative medicine applications by using the Quantum System. METHODS Bone marrow aspirates were obtained from healthy adult individuals undergoing routine total hip replacement surgery and used to generate primary cultures in the bioreactor. HPL and ABS were tested as supplements to culture medium. Morphological observations, cytofluorimetric analysis, lactate and glucose level assessment were performed. RESULTS ABS gave rise to both heterogeneous MSC and MPC population. About 95% of cells cultured in HPL showed a fibroblast-like morphology and typical mesenchymal surface markers, but MPCs were scarcely represented. DISCUSSION The use of ABS appeared to sustain a large scale MSC production, as well as the recovery of a subset of MPCs, and resulted a suitable alternative to HPL in the cell generation based on the Quantum System.
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Affiliation(s)
- Sara Savelli
- Cell Factory, Regenerative Medicine Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.
| | - Luisa Trombi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Delfo D'Alessandro
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, Pisa, Italy
| | - Stefania Moscato
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Simone Pacini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefano Giannotti
- Department of Medical and Surgical Sciences and Neurosciences, University of Siena, Siena, Italy
| | - Simone Lapi
- Immunohematology Operative Unit, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | - Fabrizio Scatena
- Immunohematology Operative Unit, Azienda Ospedaliero-Universitaria Pisana (AOUP), Pisa, Italy
| | - Mario Petrini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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Trombi L, Danti S, Savelli S, Moscato S, D'Alessandro D, Ricci C, Giannotti S, Petrini M. Mesenchymal Stromal Cell Culture and Delivery in Autologous Conditions: A Smart Approach for Orthopedic Applications. J Vis Exp 2016. [PMID: 28060333 DOI: 10.3791/54845] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Human Mesenchymal Stromal Cells (hMSCs) are cultured in vitro with different media. Limits on their use in clinical settings, however, mainly depend on potential biohazard and inflammation risks exerted by xenogeneic nutrients for their culture. Human derivatives or recombinant materials are the first choice candidates to reduce these reactions. Therefore, culture supplements and materials of autologous origin represent the best nutrients and the safest products. Here, we describe a new protocol for the isolation and culture of bone marrow hMSCs in autologous conditions - namely, patient-derived serum as a supplement for the culture medium and fibrin as a scaffold for hMSC administration. Indeed, hMSC/fibrin clot constructs could be extremely useful for several clinical applications. In particular, we focus on their use in orthopedic surgery, where the fibrin clot derived from the donor's own blood allowed effective cell delivery and nutrient/waste exchanges. To ensure optimal safety conditions, it is of the utmost importance to avoid the risks of hMSC transformation and tissue overgrowth. For these reasons, the approach described in this paper also indicates a minimally ex vivo hMSC expansion, to reduce cell senescence and morphologic changes, and short-term osteo-differentiation before implantation, to induce osteogenic lineage specification, thus decreasing the risk of subsequent uncontrolled proliferation.
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Affiliation(s)
- Luisa Trombi
- Dept. of Clinical and Experimental Medicine, University of Pisa; OtoLab, Azienda Ospedaliero-Universitaria Pisana (AOUP);
| | - Serena Danti
- OtoLab, Azienda Ospedaliero-Universitaria Pisana (AOUP); Dept. of Civil and Industrial Engineering, University of Pisa
| | - Sara Savelli
- Immunohematology Operative Unit, Azienda Ospedaliero-Universitaria Pisana (AOUP)
| | | | - Delfo D'Alessandro
- OtoLab, Azienda Ospedaliero-Universitaria Pisana (AOUP); Dept. Of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa
| | - Claudio Ricci
- OtoLab, Azienda Ospedaliero-Universitaria Pisana (AOUP)
| | - Stefano Giannotti
- II Orthopedic and Traumatologic Clinic, Azienda Ospedaliero-Universitaria Pisana (AOUP)
| | - Mario Petrini
- Dept. of Clinical and Experimental Medicine, University of Pisa
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Dell'Osso G, Bugelli G, Celli F, Petrini M, Trombi L, Guido G, Giannotti S. Grafting of Expanded Mesenchymal Stem Cells without Associated Procedure in a Healed Case of Ulna Pseudarthrosis: A Case Report. Surg Technol Int 2016; 28:289-292. [PMID: 27121410] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND The surgical management of pseudoarthrosis is often a challenge. The use of mesenchymal multipotent cells expanded and manipulated in the laboratory is an interesting treatment of pseudoarthrosis, because they can lead to differentiation into osteocytes and thus the formation of bone tissue. CASE DESCRIPTION We present a case of a 47-years-old man with isolate ulna fracture, treated with plate and screws and evolved in non-union. The patient underwent an expanded stem cells graft on the site of non-union with a small incision of approximately 3cm, without changing the synthesis system. After one year, the X-ray showed a complete fracture consolidation. DISCUSSION In our opinion, this case is interesting because it highlights the cellular action that is the only healing factor; it is an important demonstration of the biological action of expanded mesenchymal stem cells (MSCs). CONCLUSION To validate the use of MSCs, it is necessary to perform comparative studies for age, sex, general condition, location, and mechanism of injury as a further clinical validation of the efficiency of this cell line.
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Affiliation(s)
- Giacomo Dell'Osso
- Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy
| | - Giulia Bugelli
- Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy
| | - Fabio Celli
- Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy
| | - Mario Petrini
- Hematology Division, Department of Oncology, University of Pisa, Pisa, Italy
| | - Luisa Trombi
- Hematology Division, Department of Oncology, University of Pisa, Pisa, Italy
| | - Giulio Guido
- Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy
| | - Stefano Giannotti
- Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy
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Danti S, Mota C, D’alessandro D, Trombi L, Ricci C, Redmond SL, De Vito A, Pini R, Dilley RJ, Moroni L, Berrettini S. Tissue engineering of the tympanic membrane using electrospun PEOT/PBT copolymer scaffolds: A morphological in vitro study. Hearing, Balance and Communication 2015. [DOI: 10.3109/21695717.2015.1092372] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Mota C, Danti S, D'Alessandro D, Trombi L, Ricci C, Puppi D, Dinucci D, Milazzo M, Stefanini C, Chiellini F, Moroni L, Berrettini S. Multiscale fabrication of biomimetic scaffolds for tympanic membrane tissue engineering. Biofabrication 2015; 7:025005. [PMID: 25947357 DOI: 10.1088/1758-5090/7/2/025005] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The tympanic membrane (TM) is a thin tissue able to efficiently collect and transmit sound vibrations across the middle ear thanks to the particular orientation of its collagen fibers, radiate on one side and circular on the opposite side. Through the combination of advanced scaffolds and autologous cells, tissue engineering (TE) could offer valuable alternatives to autografting in major TM lesions. In this study, a multiscale approach based on electrospinning (ES) and additive manufacturing (AM) was investigated to fabricate scaffolds, based on FDA approved copolymers, resembling the anatomic features and collagen fiber arrangement of the human TM. A single scale TM scaffold was manufactured using a custom-made collector designed to confer a radial macro-arrangement to poly(lactic-co-glycolic acid) electrospun fibers during their deposition. Dual and triple scale scaffolds were fabricated combining conventional ES with AM to produce poly(ethylene oxide terephthalate)/poly(butylene terephthalate) block copolymer scaffolds with anatomic-like architecture. The processing parameters were optimized for each manufacturing method and copolymer. TM scaffolds were cultured in vitro with human mesenchymal stromal cells, which were viable, metabolically active and organized following the anisotropic character of the scaffolds. The highest viability, cell density and protein content were detected in dual and triple scale scaffolds. Our findings showed that these biomimetic micro-patterned substrates enabled cell disposal along architectural directions, thus appearing as promising substrates for developing functional TM replacements via TE.
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Affiliation(s)
- Carlos Mota
- Laboratory of Temporal Bone Dissection and Otologic Tissue Engineering (OtoLab), Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, Pisa, Italy. Institute for Biomedical Technology & Technical Medicine (MIRA), Tissue Regeneration Department, University of Twente, Enschede, The Netherlands. Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOLab), Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy. Institute for Technology Inspired Regenerative Medicine (MERLN), Complex Tissue Regeneration Department, Maastricht University, Maastricht, The Netherlands
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Barachini S, Danti S, Pacini S, D’Alessandro D, Carnicelli V, Trombi L, Moscato S, Mannari C, Cei S, Petrini M. Plasticity of human dental pulp stromal cells with bioengineering platforms: A versatile tool for regenerative medicine. Micron 2014; 67:155-168. [DOI: 10.1016/j.micron.2014.07.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 07/15/2014] [Accepted: 07/20/2014] [Indexed: 01/09/2023]
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Barbanti Brodano G, Terzi S, Trombi L, Griffoni C, Valtieri M, Boriani S, Magli MC. Mesenchymal stem cells derived from vertebrae (vMSCs) show best biological properties. Eur Spine J 2013; 22 Suppl 6:S979-84. [PMID: 24061975 PMCID: PMC3830033 DOI: 10.1007/s00586-013-3028-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 09/08/2013] [Accepted: 09/08/2013] [Indexed: 01/27/2023]
Abstract
PURPOSE Due to their properties and characteristics human mesenchymal stem cells (MSCs) appear to have great therapeutic potential. Many different populations of MSCs have been described and to understand whether they have equivalent biological properties is a critical issue for their therapeutic application. METHODS We proposed to analyze the in vitro growth kinetics of MSCs derived from different body sites (iliac crest bone marrow, vertebrae bone marrow, colon mucosa, dental pulp). RESULTS Mesenchymal stem cells derived from vertebrae can be maintained in culture for a greater number of steps and they also generate mature cells of all mesenchymal lineages with greater efficiency, when induced into osteogenic, adipogenic and chondrogenic differentiation. CONCLUSIONS The ability of vertebrae-derived MSCs in terms of expansion and differentiation is very interesting at the light of a clinical application for bone fusion in spine surgery.
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Affiliation(s)
- Giovanni Barbanti Brodano
- Department of Oncological and Degenerative Spine Surgery, Rizzoli Orthopedics Institute, Via G.C. Pupilli, 40136, Bologna, Italy,
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Giannotti S, Trombi L, Bottai V, Ghilardi M, D'Alessandro D, Danti S, Dell'Osso G, Guido G, Petrini M. Use of autologous human mesenchymal stromal cell/fibrin clot constructs in upper limb non-unions: long-term assessment. PLoS One 2013; 8:e73893. [PMID: 24023694 PMCID: PMC3758315 DOI: 10.1371/journal.pone.0073893] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 07/25/2013] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Tissue engineering appears to be an attractive alternative to the traditional approach in the treatment of fracture non-unions. Mesenchymal stromal cells (MSCs) are considered an appealing cell source for clinical intervention. However, ex vivo cell expansion and differentiation towards the osteogenic lineage, together with the design of a suitable scaffold have yet to be optimized. Major concerns exist about the safety of MSC-based therapies, including possible abnormal overgrowth and potential cancer evolution. AIMS We examined the long-term efficacy and safety of ex vivo expanded bone marrow MSCs, embedded in autologous fibrin clots, for the healing of atrophic pseudarthrosis of the upper limb. Our research work relied on three main issues: use of an entirely autologous context (cells, serum for ex vivo cell culture, scaffold components), reduced ex vivo cell expansion, and short-term MSC osteoinduction before implantation. METHODS AND FINDINGS Bone marrow MSCs isolated from 8 patients were expanded ex vivo until passage 1 and short-term osteo-differentiated in autologous-based culture conditions. Tissue-engineered constructs designed to embed MSCs in autologous fibrin clots were locally implanted with bone grafts, calibrating their number on the extension of bone damage. Radiographic healing was evaluated with short- and long-term follow-ups (range averages: 6.7 and 76.0 months, respectively). All patients recovered limb function, with no evidence of tissue overgrowth or tumor formation. CONCLUSIONS Our study indicates that highly autologous treatment can be effective and safe in the long-term healing of bone non-unions. This tissue engineering approach resulted in successful clinical and functional outcomes for all patients.
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Affiliation(s)
- Stefano Giannotti
- Dept. of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Luisa Trombi
- Dept. of Clinical and Experimental Medicine, Hematology Division, University of Pisa, Pisa, Italy
| | - Vanna Bottai
- Dept. of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Marco Ghilardi
- Dept. of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Delfo D'Alessandro
- Dept. of Surgical, Medical, Molecular Pathology and Emergency, University of Pisa, Pisa, Italy
| | - Serena Danti
- Dept. of Surgical, Medical, Molecular Pathology and Emergency, University of Pisa, Pisa, Italy
| | - Giacomo Dell'Osso
- Dept. of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Giulio Guido
- Dept. of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Mario Petrini
- Dept. of Clinical and Experimental Medicine, Hematology Division, University of Pisa, Pisa, Italy
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Picchi J, Trombi L, Spugnesi L, Barachini S, Maroni G, Brodano GB, Boriani S, Valtieri M, Petrini M, Magli MC. HOX and TALE signatures specify human stromal stem cell populations from different sources. J Cell Physiol 2013; 228:879-89. [PMID: 23018864 DOI: 10.1002/jcp.24239] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Accepted: 09/24/2012] [Indexed: 12/30/2022]
Abstract
Human stromal stem cell populations reside in different tissues and anatomical sites, however a critical question related to their efficient use in regenerative medicine is whether they exhibit equivalent biological properties. Here, we compared cellular and molecular characteristics of stromal stem cells derived from the bone marrow, at different body sites (iliac crest, sternum, and vertebrae) and other tissues (dental pulp and colon). In particular, we investigated whether homeobox genes of the HOX and TALE subfamilies might provide suitable markers to identify distinct stromal cell populations, as HOX proteins control cell positional identity and, together with their co-factors TALE, are involved in orchestrating differentiation of adult tissues. Our results show that stromal populations from different sources, although immunophenotypically similar, display distinct HOX and TALE signatures, as well as different growth and differentiation abilities. Stromal stem cells from different tissues are characterized by specific HOX profiles, differing in the number and type of active genes, as well as in their level of expression. Conversely, bone marrow-derived cell populations can be essentially distinguished for the expression levels of specific HOX members, strongly suggesting that quantitative differences in HOX activity may be crucial. Taken together, our data indicate that the HOX and TALE profiles provide positional, embryological and hierarchical identity of human stromal stem cells. Furthermore, our data suggest that cell populations derived from different body sites may not represent equivalent cell sources for cell-based therapeutical strategies for regeneration and repair of specific tissues.
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Affiliation(s)
- Jacopo Picchi
- Institute of Biomedical Technologies, National Research Council, Pisa, Italy
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Danti S, Serino LP, D'Alessandro D, Moscato S, Danti S, Trombi L, Dinucci D, Chiellini F, Pietrabissa A, Lisanti M, Berrettini S, Petrini M. Growing bone tissue-engineered niches with graded osteogenicity: an in vitro method for biomimetic construct assembly. Tissue Eng Part C Methods 2013; 19:911-24. [PMID: 23537352 DOI: 10.1089/ten.tec.2012.0445] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The traditional bone tissue-engineering approach exploits mesenchymal stem cells (MSCs) to be seeded once only on three-dimensional (3D) scaffolds, hence, differentiated for a certain period of time and resulting in a homogeneous osteoblast population at the endpoint. However, after achieving terminal osteodifferentiation, cell viability is usually markedly compromised. On the other hand, naturally occurring osteogenesis results from the coexistence of MSC progenies at distinct differentiative stages in the same microenvironment. This diversification also enables long-term viability of the mature tissue. We report an easy and tunable in vitro method to engineer simple osteogenic cell niches in a biomimetic fashion. The niches were grown via periodic reseeding of undifferentiated MSCs on MSC/scaffold constructs, the latter undergoing osteogenic commitment. Time-fractioning of the seeded cell number during differentiation time of the constructs allowed graded osteogenic cell populations to be grown together on the same scaffolds (i.e., not only terminally differentiated osteoblasts). In such cell-dynamic systems, the overall differentiative stage of the constructs could also be tuned by varying the cell density seeded at each inoculation. In this way, we generated two different biomimetic niche models able to host good reservoirs of preosteoblasts and other osteoprogenitors after 21 culture days. At that time, the niche type resulting in 40.8% of immature osteogenic progenies and only 59.2% of mature osteoblasts showed a calcium content comparable to the constructs obtained with the traditional culture method (i.e., 100.03 ± 29.30 vs. 78.51 ± 28.50 pg/cell, respectively; p=not significant), the latter colonized only by fully differentiated osteoblasts showing exhausted viability. This assembly method for tissue-engineered constructs enabled a set of important parameters, such as viability, colonization, and osteogenic yield of the MSCs to be balanced on 3D scaffolds, thus achieving biomimetic in vitro models with graded osteogenicity, which are more complex and reliable than those currently used by tissue engineers.
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Affiliation(s)
- Serena Danti
- 1 Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa , Pisa, Italy
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Giannotti S, Bottai V, Ghilardi M, Dell'osso G, Fazzi R, Trombi L, Petrini M, Guido G. Treatment of pseudoarthrosis of the upper limb using expanded mesenchymal stem cells: a pilot study. Eur Rev Med Pharmacol Sci 2013; 17:224-227. [PMID: 23377812] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND In orthopedic field is growing interest in the use of stem cells: this mesenchymal multipotent line (MSCs) can lead to differentiation into osteocytes and thus the formation of bone tissue. In literature applications of this line are described in injuries of tendons and ligaments, small bony avulsions, nonunion fractures and cartilage defects. AIM Utilize MSCs expanded in laboratory in case of atrophic pseudoarthrosis of the upper limb. MATERIALS AND METHODS We obtain the amount of cell necessary for the implant by the collaboration with the UO Haematological Department. For the procedure we make a blood sample from the iliac crest bone marrow and a subsequent phase of selection and cultivation of mesenchymal line for 3 weeks, to get a sufficient amount of tissue to be used, which is presented at the time of surgery on a scaffold made by autologous plasma gel and CaCl(2). We reassessed our experience in 8 different types of upper limb fractures result in pseudarthrosis and delayed of consolidation: 4 women and 4 men, average 44 years old followed with a follow-up of 50.3 months. In all cases the site of non-union has been revitalized (by microfractures and drilling) and a synthesis was performed with a rigid plate. So we fill the bone gap with autologous bone and mesenchymal stem cells expanded in the laboratory. RESULTS We have a radiographic healing in 8 cases and no adverse events were highlighted. CONCLUSIONS Using this cells line we obtained encouraging but certainly not conclusive impressions, according to the limited number of cases and lack of adequate comparative studies. In tissue engineering are also certainly needed further investigations and developments.
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Affiliation(s)
- S Giannotti
- Department of Orthopedic and Traumatology, University of Pisa, Italy.
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Fazzi R, Pacini S, Carnicelli V, Trombi L, Montali M, Lazzarini E, Petrini M. Mesodermal progenitor cells (MPCs) differentiate into mesenchymal stromal cells (MSCs) by activation of Wnt5/calmodulin signalling pathway. PLoS One 2011; 6:e25600. [PMID: 21980498 PMCID: PMC3183072 DOI: 10.1371/journal.pone.0025600] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 09/06/2011] [Indexed: 11/19/2022] Open
Abstract
Background Mesenchymal Stromal Cells (MSCs) remain poorly characterized because of the absence of manifest physical, phenotypic, and functional properties in cultured cell populations. Despite considerable research on MSCs and their clinical application, the biology of these cells is not fully clarified and data on signalling activation during mesenchymal differentiation and proliferation are controversial. The role of Wnt pathways is still debated, partly due to culture heterogeneity and methodological inconsistencies. Recently, we described a new bone marrow cell population isolated from MSC cultures that we named Mesodermal Progenitor Cells (MPCs) for their mesenchymal and endothelial differentiation potential. An optimized culture method allowed the isolation from human adult bone marrow of a highly pure population of MPCs (more than 97%), that showed the distinctive SSEA-4+CD105+CD90neg phenotype and not expressing MSCA-1 antigen. Under these selective culture conditions the percentage of MSCs (SSEA-4negCD105+CD90bright and MSCA-1+), in the primary cultures, resulted lower than 2%. Methodology/Principal Finding We demonstrate that MPCs differentiate to MSCs through an SSEA-4+CD105+CD90bright early intermediate precursor. Differentiation paralleled the activation of Wnt5/Calmodulin signalling by autocrine/paracrine intense secretion of Wnt5a and Wnt5b (p<0.05 vs uncondictioned media), which was later silenced in late MSCs (SSEA-4neg). We found the inhibition of this pathway by calmidazolium chloride specifically blocked mesenchymal induction (ID50 = 0.5 µM, p<0.01), while endothelial differentiation was unaffected. Conclusion The present study describes two different putative progenitors (early and late MSCs) that, together with already described MPCs, could be co-isolated and expanded in different percentages depending on the culture conditions. These results suggest that some modifications to the widely accepted MSC nomenclature are required.
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Affiliation(s)
- Rita Fazzi
- Hematology Division, Department of Oncology, Transplants and New Advances in Medicine, University of Pisa, Pisa, Italy
| | - Simone Pacini
- Hematology Division, Department of Oncology, Transplants and New Advances in Medicine, University of Pisa, Pisa, Italy
- * E-mail:
| | - Vittoria Carnicelli
- Dipartimento di Scienze dell'Uomo e dell'Ambiente, University of Pisa, Pisa, Italy
| | - Luisa Trombi
- Hematology Division, Department of Oncology, Transplants and New Advances in Medicine, University of Pisa, Pisa, Italy
| | - Marina Montali
- Hematology Division, Department of Oncology, Transplants and New Advances in Medicine, University of Pisa, Pisa, Italy
| | - Edoardo Lazzarini
- Hematology Division, Department of Oncology, Transplants and New Advances in Medicine, University of Pisa, Pisa, Italy
| | - Mario Petrini
- Hematology Division, Department of Oncology, Transplants and New Advances in Medicine, University of Pisa, Pisa, Italy
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Pacini S, Carnicelli V, Trombi L, Montali M, Fazzi R, Lazzarini E, Giannotti S, Petrini M. Constitutive expression of pluripotency-associated genes in mesodermal progenitor cells (MPCs). PLoS One 2010; 5:e9861. [PMID: 20360837 PMCID: PMC2845604 DOI: 10.1371/journal.pone.0009861] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 03/05/2010] [Indexed: 12/14/2022] Open
Abstract
Background We recently characterized a progenitor of mesodermal lineage (MPCs) from the human bone marrow of adults or umbilical cord blood. These cells are progenitors able to differentiate toward mesenchymal, endothelial and cardiomyogenic lineages. Here we present an extensive molecular characterization of MPCs, from bone marrow samples, including 39 genes involved in stem cell machinery, differentiation and cell cycle regulation. Methodology/Principal Findings MPCs are cytofluorimetrically characterized and quantitative RT-PCR was performed to evaluate the gene expression profile, comparing it with MSCs and hESCs lines. Immunofluorescence and dot-blot analysis confirm qRT-PCR data. MPCs exhibit an increased expression of OCT4, NANOG, SALL4, FBX15, SPP1 and to a lesser extent c-MYC and KLF4, but lack LIN28 and SOX2. MPCs highly express SOX15. Conclusions/Significance MPCs express many pluripotency-associated genes and show a peculiar Oct-4 molecular circuit. Understanding this unique molecular mechanism could lead to identifying MPCs as feasible, long telomeres, target cells for reprogramming with no up-regulation of the p53 pathway. Furthermore MPCs are easily and inexpensively harvested from human bone marrow.
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Affiliation(s)
- Simone Pacini
- Hematology Division, Department of Oncology, Transplants and New Advances in Medicine, University of Pisa, Pisa, Italy.
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Trombi L, Pacini S, Montali M, Fazzi R, Chiellini F, Ikehara S, Petrini M. Selective Culture of Mesodermal Progenitor Cells. Stem Cells Dev 2009; 18:1227-34. [DOI: 10.1089/scd.2009.0054] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Luisa Trombi
- Hematology Division, Department of Oncology, Transplants, and New Advances in Medicine, University of Pisa, Italy
- CUCCS-RRMR, Regione Toscana, AOUP and University of Pisa, Italy
| | - Simone Pacini
- Hematology Division, Department of Oncology, Transplants, and New Advances in Medicine, University of Pisa, Italy
| | - Marina Montali
- Hematology Division, Department of Oncology, Transplants, and New Advances in Medicine, University of Pisa, Italy
| | - Rita Fazzi
- Hematology Division, Department of Oncology, Transplants, and New Advances in Medicine, University of Pisa, Italy
| | - Federica Chiellini
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab) UdR INSTM, Department of Chemistry and Industrial Chemistry, University of Pisa, Italy
| | - Susumu Ikehara
- First Department of Pathology, Kansai Medical University, Moriguchi, Osaka, Japan
| | - Mario Petrini
- Hematology Division, Department of Oncology, Transplants, and New Advances in Medicine, University of Pisa, Italy
- CUCCS-RRMR, Regione Toscana, AOUP and University of Pisa, Italy
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Petrini M, Pacini S, Trombi L, Fazzi R, Montali M, Ikehara S, Abraham NG. Identification and purification of mesodermal progenitor cells from human adult bone marrow. Stem Cells Dev 2009; 18:857-66. [PMID: 18991503 DOI: 10.1089/scd.2008.0291] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Bone marrow-derived mesodermal stem cells may differentiate toward several lines and are easily cultured in vitro. Some putative progenitors of these cells have been described in both humans and mice. Here, we describe a new mesodermal progenitor population [mesodermal progenitors cells (MPCs)] able to differentiate into mesenchymal cells upon appropriate culture conditions. When cultured in presence of autologous serum, these cells are strongly adherent to plastic, resistant to trypsin detachment, and resting. Mesodermal progenitor cells may be pulsed to proliferate and differentiate by substituting autologous serum for human cord blood serum or fetal calf serum. By these methods cells proliferate and differentiate toward mesenchymal cells and thus may further differentiate into osteoblats, chondrocytes, or adipocytes. Moreover MPCs are capable to differentiate in endothelial cells (ECs) showing characteristics similar to microvessel endothelium cells. Mesodermal progenitors cells have a defined phenotype and carry embryonic markers not present in mesenchymal cells. Moreover MPCs strongly express aldehyde dehydrogenase activity, usually present in hematopoietic precursors but absent in mesenchymal cells. When these progenitors are pulsed to differentiate, they lose these markers and acquire the mesenchymal ones. Interestingly, mesenchymal cells may not be induced to back differentiate into MPCs. Our results demonstrate the adult serum role in maintaining pluripotent mesodermal precursors and allow isolation of these cells. After purification, MPCs may be pulsed to proliferate in a very large scale and then induced to differentiate, thus possibly allowing their use in regenerative medicine.
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Affiliation(s)
- Mario Petrini
- CUCCS-RRMR, Regione Toscana, AOUP, Department of Oncology, University of Pisa, Pisa, Italy.
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Abstract
BACKGROUND Multipotent mesenchymal stromal cells (MSCs) exert a relevant immunosuppressive activity by inhibiting T- and B-lymphocytes, natural killer (NK) cells and dendritic cell expansion. Nevertheless, a possible activity on gamma/delta T cells has still not been evaluated. Gamma-delta T lymphocytes play an important role in the control of cancer and they have been shown to be implicated in graft-vs.-host disease. Thus, modulation of activation and proliferation of these cells could be relevant for therapeutic purposes. MATERIALS AND METHODS Peripheral blood mononuclear cells from 21 healthy donors were used as source for gamma-delta T cells, expanded in presence of 10 IU mL(-1) interleukin-2 (IL-2) and 1 microM zoledronate. MSCs were recovered from patients undergoing routine total hip replacement surgery, and characterised by flow cytometry. Cytotoxicity on multiple myeloma and melanoma cell lines was assessed by measuring dilution of the carboxyfluorescein diacetate succinimydylester dye (CFSE). Gamma-delta T cells were then incubated with MSCs in contact cultures, and with addition of MSC-conditioned medium. RESULTS In this article we confirmed that (1) in vitro expanded gamma-delta T cells play a significant anti-proliferative effect on multiple myeloma and melanoma cells and (2) multipotent mesenchymal stromal cells effectively suppress the ex vivo expansion of T cells carrying a specific T-cell receptor gene (TCR) rearrangement, Vgamma9/Vdelta2, induced by the combination of IL-2 and zoledronate, without interfering with their cytotoxic activity. DISCUSSION These findings contribute to explain the activity of ex vivo expanded mesenchymal cells, suggesting that MSCs would interact with gamma-delta T lymphocytes. CONCLUSION This effect could be relevant in separating graft-vs.-host from the graft-vs.-tumour effect, especially considering the possibility of modulating T-lymphocytes activity by the immunomodulating drugs now available.
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Affiliation(s)
- I Petrini
- Department of Oncology, Transplant and New Advances in Medicine, University of Pisa and RRMR-CUCCS Regione Toscana, Pisa, Italy
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Trombi L, Petrini M, Manara G, Mese ED, Revoltella RP. Effects of Repeated Exposure to High-Voltage Electric Discharges and Low-Frequency Electromagnetic Fields on Cultured Mouse P3×63Ag8 Plasmocytoma Cells. ACTA ACUST UNITED AC 2009. [DOI: 10.3109/15368379309012867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Revoltella RP, Trombi L, Petrini M, Grassi B, Manara G, Mese ED. Low-Frequency Electromagnetic Fields Do Not Affect Cell Growth, Erythroid Differentiation, and Virus Production in Variant Lines of Untreated and Dimethyl Sulfoxide-Treated Friend Erythroleukemia Cells. ACTA ACUST UNITED AC 2009. [DOI: 10.3109/15368379309012868] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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D’Alessandro D, Battolla B, Trombi L, Barachini S, Cascone M, Bernardini N, Petrini M, Mattii L. Embedding methods for poly(l-lactic acid) microfiber mesh/human mesenchymal stem cell constructs. Micron 2009; 40:605-11. [DOI: 10.1016/j.micron.2009.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Accepted: 02/24/2009] [Indexed: 11/28/2022]
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Barachini S, Trombi L, Danti S, D'Alessandro D, Battolla B, Legitimo A, Nesti C, Mucci I, D'Acunto M, Cascone MG, Lazzeri L, Mattii L, Consolini R, Petrini M. Morpho-functional characterization of human mesenchymal stem cells from umbilical cord blood for potential uses in regenerative medicine. Stem Cells Dev 2009; 18:293-305. [PMID: 18444788 DOI: 10.1089/scd.2008.0017] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Mesenchymal stem cells (MSCs) represent a promising source of progenitor cells having the potential to repair and to regenerate diseased or damaged skeletal tissues. Bone marrow (BM) has been the first source reported to contain MSCs. However, BM-derived cells are not always acceptable, due to the highly invasive drawing and the decline in MSC number and differentiative capability with increasing age. Human umbilical cord blood (UCB), obtainable by donation with a noninvasive method, has been introduced as an alternative source of MSCs. Here human UCB-derived MSCs isolation and morpho-functional characterization are reported. Human UCB-derived mononuclear cells, obtained by negative immunoselection, exhibited either an osteoclast-like or a mesenchymal-like phenotype. However, we were able to obtain homogeneous populations of MSCs that displayed a fibroblast-like morphology, expressed mesenchym-related antigens and showed differentiative capacities along osteoblastic and early chondroblastic lineages. Furthermore, this study is one among a few papers investigating human UCB-derived MSC growth and differentiation on three-dimensional scaffolds focusing on their potential applications in regenerative medicine and tissue engineering. UCB-derived MSCs were proved to grow on biodegradable microfiber meshes; additionally, they were able to differentiate toward mature osteoblasts when cultured inside human plasma clots, suggesting their potential application in orthopedic surgery.
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Affiliation(s)
- Serena Barachini
- RRMR/CUCCS, Regional Network of Regenerative Medicine/Center for the Clinical Use of Stem Cells, University of Pisa, Pisa, Italy.
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Trombi L, D'Alessandro D, Pacini S, Fiorentino B, Scarpellini M, Fazzi R, Galimberti S, Guazzini S, Petrini M. Good manufacturing practice-grade fibrin gel is useful as a scaffold for human mesenchymal stromal cells and supports in vitro osteogenic differentiation. Transfusion 2008; 48:2246-51. [DOI: 10.1111/j.1537-2995.2008.01829.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mattii L, Battolla B, D'Alessandro D, Trombi L, Pacini S, Cascone MG, Lazzeri L, Bernardini N, Dolfi A, Galimberti S, Petrini M. Gelatin/PLLA Sponge-Like Scaffolds Allow Proliferation and Osteogenic Differentiation of Human Mesenchymal Stromal Cells. Macromol Biosci 2008; 8:819-26. [DOI: 10.1002/mabi.200700331] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Pacini S, Spinabella S, Trombi L, Fazzi R, Galimberti S, Dini F, Carlucci F, Petrini M. Suspension of bone marrow-derived undifferentiated mesenchymal stromal cells for repair of superficial digital flexor tendon in race horses. ACTA ACUST UNITED AC 2008; 13:2949-55. [PMID: 17919069 DOI: 10.1089/ten.2007.0108] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
It has been proven that mesenchymal stromal cells (MSCs) can differentiate into tenocytes. Attempts to repair tendon lesions have been performed, mainly using scaffold carriers in experimental settings. In this article, we describe the clinical use of undifferentiated MSCs in racehorses. Significant clinical recovery was achieved in 9 of 11 horses evaluated using ultrasound analysis and their ability to return to racing. Our results show that the suspension of a small number of undifferentiated MSCs may be sufficient to repair damaged tendons without the use of scaffold support. Ultrasound scanning showed that fibers were correctly oriented. By using undifferentiated cells, no ectopic bone deposition occurred. A sufficient number of cells was recovered for therapeutic purposes in all but 1 case. We suggest that the use of autologous MSCs is a safe therapeutic method for treating incompletely (i.e., not full-thickness) damaged tendons.
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Affiliation(s)
- Simone Pacini
- Center for the Clinical Use of Stem Cells and Hematology Division, Department of Oncology, Transplants, and Advances in Medicine, University of Pisa, Pisa, Italy
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Trombi L, Mattii L, Pacini S, D'Alessandro D, Battolla B, Orciuolo E, Buda G, Fazzi R, Galimberti S, Petrini M. Human autologous plasma-derived clot as a biological scaffold for mesenchymal stem cells in treatment of orthopedic healing. J Orthop Res 2008; 26:176-83. [PMID: 17868116 DOI: 10.1002/jor.20490] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Recent advances in the isolation, expansion, and characterization of human mesenchymal stem cells (hMSCs) have raised the possibility of using them in cell therapies and tissue engineering for bone reconstruction. hMSCs, isolated from the bone marrow of eight normal adult patients, were minimally expanded ex vivo and pulsed twice toward osteogenic lineage. The cells were then included into autologous plasma-derived clots. Cytofluorimetric analysis, immunocytochemistry (osteopontin), histochemistry (alkaline phosphatase, Alcian blue, Von Kossa, and alizarin red staining), and viable/proliferation tests were performed to study both stem and differentiating cells. Although two short inductions increased osteogenic markers in hMSCs, inside the clot the cells were able to terminally differentiate into osteoblasts. Moreover, we show that the clot is able to sustain cell proliferation under appropriate cell culture conditions. Our results suggested that clot could be useful for hMSC delivery into the site of the lesion to promote bone formation. Moreover, the plasticity of this material allowed good in vitro hMSC spreading and proliferation. The advantages of using this autologous biological material are its biocompatibility and reabsorption; furthermore, using a gel as scaffold, it is possible to mold it to the shape of a bone cavity.
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Affiliation(s)
- Luisa Trombi
- Department of Oncology, Transplant and Advanced Technologies in Medicine, Hematology Division, University of Pisa, Via Roma 67, 56126, Italy
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Galimberti S, Canestraro M, Pacini S, Fazzi R, Orciuolo E, Trombi L, Mattii L, Battolla B, Capodanno A, Collecchi P, Veroni F, Simi P, Piaggi S, Casini A, Petrini M. PS-341 (Bortezomib) inhibits proliferation and induces apoptosis of megakaryoblastic MO7-e cells. Leuk Res 2008; 32:103-12. [PMID: 17629554 DOI: 10.1016/j.leukres.2007.05.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2007] [Revised: 05/13/2007] [Accepted: 05/19/2007] [Indexed: 10/23/2022]
Abstract
PS-341 (Bortezomib) is a dipeptide boronic acid proteasome inhibitor with antitumor activity that induces apoptosis in different human cancer cell lines. We investigated effects of PS-341 (Bortezomib) on cell proliferation, cell cycle progression, induction of apoptosis and differentiation in a megakaryoblastic (MO7-e) cell line. PS-341 was able to retain NF-kappaB in the cytoplasm and inhibit cell growth (IC(50)=22.5 nM), in a dose/time-dependent way. This anti-proliferative activity resulted to be lineage-specific, because other leukemic cell lines (KG1a, K562/R7, HL60/DNR) were unaffected by the PS-341 treatment. Moreover, PS-341 in MO7-e induced a significant pro-apoptotic effect from 10 nM concentration (40% versus 12% in the control, p<0.05). On the other hand, at lower concentration (5 nM), Bortezomib blocked cell cycle in the G2 phase. Finally, this compound was able to down-regulate WT1 expression. No significant effects on cell differentiation were found. Because a spontaneous NF-kappaB activation has been reported in megakaryocytes from patients affected by myeloproliferative disorders, Bortezomib would so be an attractive therapeutic tool for these malignancies, including essential thrombocythemia or idiopathic myelofibrosis. Preliminary data show an inhibiting activity of Bortezomib in the megakaryocytic colonies formation. Finally, also down-regulation of the WT1 gene Bortezomib-driven could be relevant, because of the role that this gene would play in the pathogenesis of acute and chronic myeloproliferative disorders.
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Affiliation(s)
- S Galimberti
- Department of Oncology, Transplant and Advances in Medicine, Section of Hematology, University of Pisa, Ospedale S. Chiara, Via Roma, 56, 56100 Pisa, Italy.
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Danti S, D'Acunto M, Trombi L, Berrettini S, Pietrabissa A. A Micro/Nanoscale Surface Mechanical Study on Morpho-Functional Changes in Multilineage-Differentiated Human Mesenchymal Stem Cells. Macromol Biosci 2007; 7:589-98. [PMID: 17477443 DOI: 10.1002/mabi.200600271] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [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: 11/07/2022]
Abstract
In recent years MSCs have become a very attractive tool in tissue engineering and regenerative medicine because of their ability to be committed along several lineages through chemical or physical stimuli. Nevertheless their therapeutic potential and plasticity are not yet totally understood. This report describes the use of AFM together with conventional microscopies to obtain mechanical information on cell surfaces and deposited extra cellular matrix molecules, after inducing the differentiation of human MSCs towards three typical mesoderm phenotypes. The aim is to correlate morphological, functional, and mechanical aspects of human MSCs to obtain a deeper understanding of their great potential.
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Affiliation(s)
- Serena Danti
- Centre for Clinical Use of Stem Cells, University of Pisa, Italy.
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Fazzi R, Orciuolo E, Trombi L, Mattii L, Battola B, Riccioni R, Carulli G, Galimberti S, Petrini M. PEG-Filgrastim activity on granulocyte functions. Leuk Res 2007; 31:1453-5. [PMID: 17197023 DOI: 10.1016/j.leukres.2006.11.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2006] [Revised: 11/12/2006] [Accepted: 11/12/2006] [Indexed: 01/28/2023]
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Galimberti S, Ciabatti E, Ottimo F, Rossi A, Trombi L, Carulli G, Cervetti G, Matti L, Bianchi G, Petrini M. Cell clonality in hypereosinophilic syndrome: what pathogenetic role? Clin Exp Rheumatol 2007; 25:17-22. [PMID: 17417985] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
OBJECTIVE Idiopathic hypereosinophilic syndrome (HES) is a heterogeneous disorder, including either a myeloproliferative or a lymphoproliferative variant (l-HES). In l-HES, T-lymphocytes could be involved in the pathogenesis through several cytokines, including IL5. METHODS We assayed both TCR Beta- and delta-rearrangements by fluorescent PCR, characterizing 14 patients affected by HES. Lyn activation (a src-kinase involved in the IL5 pathway) was also tested in 6 cases. RESULTS FIP1L1-PDGFRa was detected in 4 cases (28.6%); a clonal TCR was found in 10 cases (71.4%), including cases FIP1L1-PDGFRalpha-positive; four cases did not show any molecular marker. In this series, levels of IL5, IL4, IL2 and gammaIFN were measured, without any significant difference among different subgroups. All pathological samples tested did not show Lyn activation. Immunophenotype was also characterized: only one case showed an atypical CD3-/CD4+ population in the bone marrow. CONCLUSION This study would suggest that a real distinction between m- and l-HES is not wholly convincing and that clonal T-cell expansion could not be the "primum movens" but an epiphenomenon in HES.
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Affiliation(s)
- S Galimberti
- Department of Oncology, Transplant and Advances in Medicine, Section of Hematology, University of Pisa, Ospedale S. Chiara, Pisa Italy.
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Fazzi R, Galimberti S, Pacini S, Testi R, Azzarà A, Orciuolo E, Trombi L, Metelli MR, Petrini M. Bone and bone marrow interactions: hematological activity of osteoblastic growth peptide (OGP)-derived carboxy-terminal pentapeptide. Leuk Res 2004; 28:1097-105. [PMID: 15289024 DOI: 10.1016/j.leukres.2004.01.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2003] [Accepted: 01/02/2004] [Indexed: 11/21/2022]
Abstract
The increase of megakaryocytes and platelets that characterizes essential thrombocythemia (ET) appears to be secondary to a deregulation of megakaryocytopoiesis. The carboxy-terminal fragment of osteogenic growth peptide (OGP10-14) promotes bone formation and hemopoiesis, while it inhibits megakaryocytopoiesis. In this paper we show that treatment with synthetic OGP10-14 (sOGP10-14) induces a significant reduction of mid and large colony-forming unit-megakaryocytes (CFU-Mk) in ET patients as well as in controls, and is associated with a significant inhibition of thrombopoietin (TPO)-primed MO-7e megakaryoblastic cells proliferation. These actions appear to be related to sOGP10-14 modulation of TGF-beta(1) synthesis and/or secretion, although a direct effect on TGF-beta receptor expression cannot be excluded.
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Affiliation(s)
- Rita Fazzi
- Department of Oncology, Transplants and Advanced Technologies in Medicine, Hematology Division, University of Pisa, Ospedale S Chiara, Via Roma 67, Pisa, Italy
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Fazzi R, Pacini S, Testi R, Azzarà A, Galimberti S, Testi C, Trombi L, Metelli MR, Petrini M. Carboxy-terminal fragment of osteogenic growth peptide in vitro increases bone marrow cell density in idiopathic myelofibrosis. Br J Haematol 2003; 121:76-85. [PMID: 12670334 DOI: 10.1046/j.1365-2141.2003.04250.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [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: 11/20/2022]
Abstract
Idiopathic myelofibrosis (IMF) is a clonal stem cell disorder characterized by reactive fibrosis of bone marrow sustained by a complex cytokine network. At present, no efficacious therapy for this disease exists. Synthetic carboxy-terminal pentapeptide of osteogenic growth factor (sOGP10-14) can increase bone marrow cellularity and the number of haematopoietic colonies; this study evaluated the activity of sOGP10-14 in IMF. Fragments of bone marrow biopsies from patients affected by IMF were cultured with or without the addition of sOGP10-14. Cellular density was evaluated by image analysis, and transforming growth factor-beta1 (TGF-beta1) concentration was immunologically assayed in the supernatant of cultured bone marrow biopsies. The proliferation rate of the megakaryoblastic M07-e cell line, cultured in the presence of either granulocyte-macrophage colony stimulating factor or thrombopoietin (TPO), and with or without sOGP10-14, was evaluated. Megakaryocyte colony forming unit (CFU-Mk) assay was performed on bone marrow samples of IMF patients with or without sOGP10-14. After 14 d, bone marrow cellularity was significantly increased in samples cultured with the pentapeptide. Moreover, sOGP10-14 induced a significant increase of TGF-beta in culture supernatants. TPO-primed proliferation of M07-e was reduced by sOGP10-14, and the pentapeptide significantly reduced CFU-Mk on IMF bone-marrow-derived cells. sOGP10-14 increased ex vivo bone marrow cellularity in IMF. This action could be related to the megakaryocyte inhibition induced by the interference of this pentapeptide with growth factor activities. These findings suggest that a deficiency of osteoblast-related factors may play a role in bone marrow failure in IMF.
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Affiliation(s)
- Rita Fazzi
- Department of Oncology, Transplants and Advanced Technologies in Medicine, Haematology Division, University of Pisa, Via Roma 67, 56100 Pisa, Italy
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Beffy P, Rovero P, Di Bartolo V, Trombi L, Laricchia L, Revoltella RP. 64. Structure-function analyses of human granulocyte-macrophage colony stimulating factor using synthetic peptides and antibodies. Pharmacotherapy 1992. [DOI: 10.1016/0753-3322(92)90149-2] [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: 11/30/2022]
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Petrini M, Dastoli G, Valentini P, Mattii L, Trombi L, Testi R, Ambrogi F, Grassi B. Synergistic effects of alpha interferon and 1,25 dihydroxyvitamin D3: preliminary evidence suggesting that interferon induces expression of the vitamin receptor. Haematologica 1991; 76:467-71. [PMID: 1668205] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND To active metabolite of vitamin D3-1,25(OH)2D3-is a well-known differentiation inducer. The addition of this metabolite to sensitive cell cultures inhibits proliferation and induces monocytic-macrophagic differentiation. Alpha interferon may also inhibit proliferation and increase the expression of some surface antigens in some neoplastic cells. In the present report, we describe the synergistic activity of these two drugs on U-937 and on cultured cells from a leukemic patient. METHODS Proliferation was studied by 3H-thymidine incorporation; differentiation markers were evaluated immunologically by monoclonal antibodies and by cytochemical tests. Phagocytosis and NBT reduction test were also performed in order to confirm the differentiating properties of these drugs. Finally, the expression of the 1,25(OH)2D3 receptor was evaluated by immunochemical methods. RESULTS After culturing these cells for 72 hours in the presence of 1,25(OH)2D3, cell proliferation was reduced and the expression of some phenotypic and functional markers suggested monocytic-macrophagic differentiation. Alpha interferon and 1,25(OH)2D3 synergistically inhibit the proliferation of U-937 cells. Alpha interferon increased the expression of the 1,25(OH)2D3 receptor in U-937 cells. CONCLUSIONS The reported results confirm the synergistic activity of INF and 1,25(OH)2D3 on cell proliferation in monoblastic cells. The possible role of the increased expression of the vitamin receptor in cells cultured in the presence of INF is discussed.
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MESH Headings
- Calcitriol/pharmacology
- DNA Replication/drug effects
- DNA, Neoplasm/biosynthesis
- Drug Synergism
- Humans
- Immunophenotyping
- Interferon alpha-2
- Interferon-alpha/pharmacology
- Leukemia, Myelomonocytic, Acute/pathology
- Lymphoma, Large B-Cell, Diffuse/pathology
- Receptors, Calcitriol
- Receptors, Steroid/biosynthesis
- Recombinant Proteins
- Stimulation, Chemical
- Tumor Cells, Cultured/drug effects
- Tumor Cells, Cultured/pathology
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Affiliation(s)
- M Petrini
- Clinica Medica I, Università di Pisa, Italy
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