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Galati M, Gatto ML, Bloise N, Fassina L, Saboori A, Visai L, Mengucci P, Iuliano L. Electron Beam Powder Bed Fusion of Ti-48Al-2Cr-2Nb Open Porous Scaffold for Biomedical Applications: Process Parameters, Adhesion, and Proliferation of NIH-3T3 Cells. 3D Print Addit Manuf 2024; 11:314-322. [PMID: 38389689 PMCID: PMC10880641 DOI: 10.1089/3dp.2022.0108] [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] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Titanium aluminide (TiAl)-based intermetallics, especially Ti-48Al-2Cr-2Nb, are a well-established class of materials for producing bulky components using the electron beam powder bed fusion (EB-PBF) process. The biological properties of Ti-48Al-2Cr-2Nb alloy have been rarely investigated, specifically using complex cellular structures. This work investigates the viability and proliferation of NIH-3T3 fibroblasts on Ti-48Al-2Cr-2Nb dodecahedral open scaffolds manufactured by the EB-PBF process. A process parameter optimization is carried out to produce a fully dense part. Then scaffolds are produced and characterized using different techniques, including scanning electron microscopy and X-ray tomography. In vitro viability tests are performed with NIH-3T3 cells after incubation for 1, 4, and 7 days. The results show that Ti-48Al-2Cr-2Nb represents a promising new entry in the biomaterial field.
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Affiliation(s)
- Manuela Galati
- Department of Management and Production Engineering (DIGEP), Integrated Additive Manufacturing Center (IAM)—Politecnico di Torino, Torino, Italy
| | - Maria Laura Gatto
- Dipartimento di Scienze e Ingegneria della Materia, dell'Ambiente ed Urbanistica (SIMAU)—Università Politecnica delle Marche, Ancona, Italy
| | - Nora Bloise
- Department of Molecular Medicine (DMM), Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering (DII), Centre for Health Technologies (CHT), University of Pavia, Pavia, Italy
| | - Abdollah Saboori
- Department of Management and Production Engineering (DIGEP), Integrated Additive Manufacturing Center (IAM)—Politecnico di Torino, Torino, Italy
| | - Livia Visai
- Department of Molecular Medicine (DMM), Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Pavia, Italy
- Department of Electrical, Computer and Biomedical Engineering (DII), Centre for Health Technologies (CHT), University of Pavia, Pavia, Italy
| | - Paolo Mengucci
- Dipartimento di Scienze e Ingegneria della Materia, dell'Ambiente ed Urbanistica (SIMAU)—Università Politecnica delle Marche, Ancona, Italy
| | - Luca Iuliano
- Department of Management and Production Engineering (DIGEP), Integrated Additive Manufacturing Center (IAM)—Politecnico di Torino, Torino, Italy
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Burattini M, Lo Muzio FP, Hu M, Bonalumi F, Rossi S, Pagiatakis C, Salvarani N, Fassina L, Luciani GB, Miragoli M. Unlocking cardiac motion: assessing software and machine learning for single-cell and cardioid kinematic insights. Sci Rep 2024; 14:1782. [PMID: 38245558 PMCID: PMC10799933 DOI: 10.1038/s41598-024-52081-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024] Open
Abstract
The heart coordinates its functional parameters for optimal beat-to-beat mechanical activity. Reliable detection and quantification of these parameters still represent a hot topic in cardiovascular research. Nowadays, computer vision allows the development of open-source algorithms to measure cellular kinematics. However, the analysis software can vary based on analyzed specimens. In this study, we compared different software performances in in-silico model, in-vitro mouse adult ventricular cardiomyocytes and cardioids. We acquired in-vitro high-resolution videos during suprathreshold stimulation at 0.5-1-2 Hz, adapting the protocol for the cardioids. Moreover, we exposed the samples to inotropic and depolarizing substances. We analyzed in-silico and in-vitro videos by (i) MUSCLEMOTION, the gold standard among open-source software; (ii) CONTRACTIONWAVE, a recently developed tracking software; and (iii) ViKiE, an in-house customized video kinematic evaluation software. We enriched the study with three machine-learning algorithms to test the robustness of the motion-tracking approaches. Our results revealed that all software produced comparable estimations of cardiac mechanical parameters. For instance, in cardioids, beat duration measurements at 0.5 Hz were 1053.58 ms (MUSCLEMOTION), 1043.59 ms (CONTRACTIONWAVE), and 937.11 ms (ViKiE). ViKiE exhibited higher sensitivity in exposed samples due to its localized kinematic analysis, while MUSCLEMOTION and CONTRACTIONWAVE offered temporal correlation, combining global assessment with time-efficient analysis. Finally, machine learning reveals greater accuracy when trained with MUSCLEMOTION dataset in comparison with the other software (accuracy > 83%). In conclusion, our findings provide valuable insights for the accurate selection and integration of software tools into the kinematic analysis pipeline, tailored to the experimental protocol.
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Affiliation(s)
- Margherita Burattini
- Department of Surgery, Dentistry and Maternity, University of Verona, Verona, Italy
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Francesco Paolo Lo Muzio
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Deutsches Herzzentrum Der Charité, Department of Cardiology, Angiology and Intensive Care Medicine, Berlin, Germany
| | - Mirko Hu
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Flavia Bonalumi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Stefano Rossi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Christina Pagiatakis
- Humanitas Research Hospital, IRCCS, Rozzano (Milan), Italy
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Nicolò Salvarani
- Humanitas Research Hospital, IRCCS, Rozzano (Milan), Italy
- Institute of Genetic and Biomedical Research (IRGB), UOS of Milan, National Research Council of Italy, Milan, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | | | - Michele Miragoli
- Department of Medicine and Surgery, University of Parma, Parma, Italy.
- Humanitas Research Hospital, IRCCS, Rozzano (Milan), Italy.
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Restivo E, Peluso E, Bloise N, Bello GL, Bruni G, Giannaccari M, Raiteri R, Fassina L, Visai L. Surface Properties of a Biocompatible Thermoplastic Polyurethane and Its Anti-Adhesive Effect against E. coli and S. aureus. J Funct Biomater 2024; 15:24. [PMID: 38248691 PMCID: PMC10816734 DOI: 10.3390/jfb15010024] [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: 12/13/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Thermoplastic polyurethane (TPU) is a polymer used in a variety of fields, including medical applications. Here, we aimed to verify if the brush and bar coater deposition techniques did not alter TPU properties. The topography of the TPU-modified surfaces was studied via AFM demonstrating no significant differences between brush and bar coater-modified surfaces, compared to the un-modified TPU (TPU Film). The effect of the surfaces on planktonic bacteria, evaluated by MTT assay, demonstrated their anti-adhesive effect on E. coli, while the bar coater significantly reduced staphylococcal planktonic adhesion and both bacterial biofilms compared to other samples. Interestingly, Pearson's R coefficient analysis showed that Ra roughness and Haralick's correlation feature were trend predictors for planktonic bacterial cells adhesion. The surface adhesion property was evaluated against NIH-3T3 murine fibroblasts by MTT and against human fibrinogen and human platelet-rich plasma by ELISA and LDH assay, respectively. An indirect cytotoxicity experiment against NIH-3T3 confirmed the biocompatibility of the TPUs. Overall, the results indicated that the deposition techniques did not alter the antibacterial and anti-adhesive surface properties of modified TPU compared to un-modified TPU, nor its bio- and hemocompatibility, confirming the suitability of TPU brush and bar coater films in the biomedical and pharmaceutical fields.
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Affiliation(s)
- Elisa Restivo
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
| | - Emanuela Peluso
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
| | - Giovanni Lo Bello
- Department of Informatics, Bioengineering, Robotics and System Engineering—DIBRIS, University of Genoa, 16145 Genoa, Italy; (G.L.B.); (R.R.)
| | - Giovanna Bruni
- Department of Chemistry, Physical Chemistry Section, University of Pavia, 27100 Pavia, Italy;
| | - Marialaura Giannaccari
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
| | - Roberto Raiteri
- Department of Informatics, Bioengineering, Robotics and System Engineering—DIBRIS, University of Genoa, 16145 Genoa, Italy; (G.L.B.); (R.R.)
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia, 27100 Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali (INSTM), Research Unit (UdR) Pavia, University of Pavia, 27100 Pavia, Italy; (E.R.); (E.P.); (M.G.); (L.V.)
- . Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research (Centro 3R), University of Pavia Unit, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
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Gatto ML, Furlani M, Giuliani A, Cabibbo M, Bloise N, Fassina L, Petruczuk M, Visai L, Mengucci P. Combined Effects of HA Concentration and Unit Cell Geometry on the Biomechanical Behavior of PCL/HA Scaffold for Tissue Engineering Applications Produced by LPBF. Materials (Basel) 2023; 16:4950. [PMID: 37512225 PMCID: PMC10381722 DOI: 10.3390/ma16144950] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/26/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023]
Abstract
This experimental study aims at filling the gap in the literature concerning the combined effects of hydroxyapatite (HA) concentration and elementary unit cell geometry on the biomechanical performances of additively manufactured polycaprolactone/hydroxyapatite (PCL/HA) scaffolds for tissue engineering applications. Scaffolds produced by laser powder bed fusion (LPBF) with diamond (DO) and rhombic dodecahedron (RD) elementary unit cells and HA concentrations of 5, 30 and 50 wt.% were subjected to structural, mechanical and biological characterization to investigate the biomechanical and degradative behavior from the perspective of bone tissue regeneration. Haralick's features describing surface pattern, correlation between micro- and macro-structural properties and human mesenchymal stem cell (hMSC) viability and proliferation have been considered. Experimental results showed that HA has negative influence on scaffold compaction under compression, while on the contrary it has a positive effect on hMSC adhesion. The unit cell geometry influences the mechanical response in the plastic regime and also has an effect on the cell proliferation. Finally, both HA concentration and elementary unit cell geometry affect the scaffold elastic deformation behavior as well as the amount of micro-porosity which, in turn, influences the scaffold degradation rate.
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Affiliation(s)
- Maria Laura Gatto
- Department of Industrial Engineering and Mathematical Sciences, Polytechnic University of Marche, Via Brecce Bianche 12, 60131 Ancona, Italy
| | - Michele Furlani
- Department of Clinical Science, Polytechnic University of Marche, Via Brecce Bianche 12, 60131 Ancona, Italy
| | - Alessandra Giuliani
- Department of Clinical Science, Polytechnic University of Marche, Via Brecce Bianche 12, 60131 Ancona, Italy
| | - Marcello Cabibbo
- Department of Industrial Engineering and Mathematical Sciences, Polytechnic University of Marche, Via Brecce Bianche 12, 60131 Ancona, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Viale Taramelli 3/b, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Via Salvatore Maugeri 4, 27100 Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, 27100 Pavia, Italy
| | - Marlena Petruczuk
- Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Viale Taramelli 3/b, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Via Salvatore Maugeri 4, 27100 Pavia, Italy
| | - Paolo Mengucci
- Department of Materials, Environmental Sciences and Urban Planning, INSTM UdR of Ancona, Polytechnic University of Marche, Via Brecce Bianche 12, 60131 Ancona, Italy
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Mendiola Pla M, Berrettoni S, Lee FH, Rozzi G, Marrano F, Gross RT, Evans A, Wendell DC, Lezberg P, Burattini M, Paolo lo Muzio F, Fassina L, Milano CA, Bang ML, Bowles DE, Miragoli M. Video analysis of ex vivo beating hearts during preservation on the TransMedics® organ care system. Front Cardiovasc Med 2023; 10:1216917. [PMID: 37408655 PMCID: PMC10318359 DOI: 10.3389/fcvm.2023.1216917] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 05/04/2023] [Accepted: 05/23/2023] [Indexed: 07/07/2023] Open
Abstract
Background Reliable biomarkers for assessing the viability of the donor hearts undergoing ex vivo perfusion remain elusive. A unique feature of normothermic ex vivo perfusion on the TransMedics® Organ Care System (OCS™) is that the donor heart is maintained in a beating state throughout the preservation period. We applied a video algorithm for an in vivo assessment of cardiac kinematics, video kinematic evaluation (Vi.Ki.E.), to the donor hearts undergoing ex vivo perfusion on the OCS™ to assess the feasibility of applying this algorithm in this setting. Methods Healthy donor porcine hearts (n = 6) were procured from Yucatan pigs and underwent 2 h of normothermic ex vivo perfusion on the OCS™ device. During the preservation period, serial high-resolution videos were captured at 30 frames per second. Using Vi.Ki.E., we assessed the force, energy, contractility, and trajectory parameters of each heart. Results There were no significant changes in any of the measured parameters of the heart on the OCS™ device over time as judged by linear regression analysis. Importantly, there were no significant changes in contractility during the duration of the preservation period (time 0-30 min, 918 ± 430 px/s; time 31-60 min, 1,386 ± 603 px/s; time 61-90 min, 1,299 ± 617 px/s; time 91-120 min, 1,535 ± 728 px/s). Similarly, there were no significant changes in the force, energy, or trajectory parameters. Post-transplantation echocardiograms demonstrated robust contractility of each allograft. Conclusion Vi.Ki.E. assessment of the donor hearts undergoing ex vivo perfusion is feasible on the TransMedics OCS™, and we observed that the donor hearts maintain steady kinematic measurements throughout the duration.
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Affiliation(s)
| | - Silvia Berrettoni
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Franklin H. Lee
- Department of Surgery, Duke University Medical Center, Durham, NC, United States
| | - Giacomo Rozzi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Federica Marrano
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Ryan T. Gross
- Department of Surgery, Duke University Medical Center, Durham, NC, United States
| | - Amy Evans
- Perfusion Services, Duke University Medical Center, Durham, NC, United States
| | - David C. Wendell
- Duke Cardiovascular Magnetic Resonance Center, Duke University Medical Center, Durham, NC, United States
| | | | - Margherita Burattini
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Department of Surgical Sciences, Dentistry, and Maternity, University of Verona, Verona, Italy
| | | | - Lorenzo Fassina
- Department of Electrical, Computer, and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Carmelo A. Milano
- Department of Surgery, Duke University Medical Center, Durham, NC, United States
| | - Marie-Louise Bang
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), Milan Unit, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - Dawn E. Bowles
- Department of Surgery, Duke University Medical Center, Durham, NC, United States
| | - Michele Miragoli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
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Riva F, Bloise N, Omes C, Ceccarelli G, Fassina L, Nappi RE, Visai L. Human Ovarian Follicular Fluid Mesenchymal Stem Cells Express Osteogenic Markers When Cultured on Bioglass 58S-Coated Titanium Scaffolds. Materials (Basel) 2023; 16:ma16103676. [PMID: 37241304 DOI: 10.3390/ma16103676] [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] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/28/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023]
Abstract
Recent studies have reported that stem cells (human follicular fluid mesenchymal stem cells or hFF-MSCs) are present in ovarian follicular fluid (hFF) and that they have a proliferative and differentiative potential which is similar to that of MSCs derived from other adult tissue. These mesenchymal stem cells, isolated from human follicular fluid waste matter discarded after retrieval of oocytes during the IVF process, constitute another, as yet unutilized, source of stem cell materials. There has been little work on the compatibility of these hFF-MSCs with scaffolds useful for bone tissue engineering applications and the aim of this study was to evaluate the osteogenic capacity of hFF-MSCs seeded on bioglass 58S-coated titanium and to provide an assessment of their suitability for bone tissue engineering purposes. Following a chemical and morphological characterization with scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), cell viability, morphology and expression of specific osteogenic markers were examined after 7 and 21 days of culture. The hFF-MSCs seeded on bioglass and cultured with osteogenic factors, when compared with those seeded on tissue culture plate or on uncoated titanium, exhibited enhanced cell viability and osteogenic differentiation, as reflected by increased calcium deposition and increased ALP activity with expression and production of bone-related proteins. Taken together, these results demonstrate that MSCs from human follicular fluid waste materials can be easily cultured in titanium scaffolds coated with bioglass, having osteoinductive properties. This process has significant potential for regenerative medicine applications and indicates that hFF-MSCs may be a valid alternative to hBM-MSC cells in experimental models in bone tissue engineering.
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Affiliation(s)
- Federica Riva
- Histology and Embryology Unit, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
| | - Claudia Omes
- Center for Reproductive Medicine, Obstetrics and Gynecology Unit 2, Woman and Child Health Department, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Gabriele Ceccarelli
- Human Anatomy Unit, Department of Public Health, Experimental and Forensic Medicine, Centre for Health Technologies (CHT), University of Pavia, 27100 Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia, 27100 Pavia, Italy
| | - Rossella Elena Nappi
- Center for Reproductive Medicine, Obstetrics and Gynecology Unit 2, Woman and Child Health Department, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100 Pavia, Italy
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Ni W, Ramalingam M, Li Y, Park JH, Dashnyam K, Lee JH, Bloise N, Fassina L, Visai L, De Angelis MGC, Pedraz JL, Kim HW, Hu J. Immunomodulatory and Anti-inflammatory effect of Neural Stem/Progenitor Cells in the Central Nervous System. Stem Cell Rev Rep 2023; 19:866-885. [PMID: 36650367 DOI: 10.1007/s12015-022-10501-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2022] [Indexed: 01/19/2023]
Abstract
Neuroinflammation is a critical event that responds to disturbed homeostasis and governs various neurological diseases in the central nervous system (CNS). The excessive inflammatory microenvironment in the CNS can adversely affect endogenous neural stem cells, thereby impeding neural self-repair. Therapies with neural stem/progenitor cells (NSPCs) have shown significant inhibitory effects on inflammation, which is mainly achieved through intercellular contact and paracrine signalings. The intercellular contact between NSPCs and immune cells, the activated CNS- resident microglia, and astrocyte plays a critical role in the therapeutic NSPCs homing and immunomodulatory effects. Moreover, the paracrine effect mainly regulates infiltrating innate and adaptive immune cells, activated microglia, and astrocyte through the secretion of bioactive molecules and extracellular vesicles. However, the molecular mechanism involved in the immunomodulatory effect of NSPCs is not well discussed. This article provides a systematic analysis of the immunomodulatory mechanism of NSPCs, discusses efficient ways to enhance its immunomodulatory ability, and gives suggestions on clinical therapy.
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Affiliation(s)
- Wei Ni
- Department of Clinical Laboratory, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, 213000, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Murugan Ramalingam
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116, Republic of Korea. .,Department of Nanobiomedical Science, BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea. .,Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea. .,School of Basic Medical Sciences, Chengdu University, Chengdu, 610106, People's Republic of China.
| | - Yumeng Li
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science, BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jeong-Hui Park
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science, BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
| | - Khandmaa Dashnyam
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116, Republic of Korea.,Department of Nanobiomedical Science, BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea.,Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100, Pavia, Italy.,Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100, Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100, Pavia, Italy.,Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, 27100, Pavia, Italy
| | | | - Jose Luis Pedraz
- NanoBioCel Research Group, Laboratory of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006, Vitoria-Gasteiz, Spain.,Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine, Institute of Health Carlos III, 28029, Madrid, Spain
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, 31116, Republic of Korea. .,Department of Nanobiomedical Science, BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea. .,Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea.
| | - Jiabo Hu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
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8
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Fassina L, Bloise N, Ramalingam M, Cusella De Angelis MG, Visai L. Editorial: Cells, biomaterials, and biophysical stimuli for bone, cartilage, and muscle regeneration. Front Bioeng Biotechnol 2023; 11:1200368. [PMID: 37113670 PMCID: PMC10126727 DOI: 10.3389/fbioe.2023.1200368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Affiliation(s)
- Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia, Pavia, Italy
- *Correspondence: Lorenzo Fassina, ; Nora Bloise, ; Murugan Ramalingam, ; Maria Gabriella Cusella De Angelis, ; Livia Visai,
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia, Italy
- *Correspondence: Lorenzo Fassina, ; Nora Bloise, ; Murugan Ramalingam, ; Maria Gabriella Cusella De Angelis, ; Livia Visai,
| | - Murugan Ramalingam
- School of Basic Medical Sciences, Chengdu University, Chengdu, China
- Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, Republic of Korea
- Department of Nanobiomedical Science, BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Republic of Korea
- Mechanobiology Dental Medicine Research Center, Dankook University, Cheonan, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, Republic of Korea
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara, Türkiye
- *Correspondence: Lorenzo Fassina, ; Nora Bloise, ; Murugan Ramalingam, ; Maria Gabriella Cusella De Angelis, ; Livia Visai,
| | - Maria Gabriella Cusella De Angelis
- Department of Public Health, Experimental and Forensic Medicine, Human Anatomy Unit, University of Pavia, Pavia, Italy
- *Correspondence: Lorenzo Fassina, ; Nora Bloise, ; Murugan Ramalingam, ; Maria Gabriella Cusella De Angelis, ; Livia Visai,
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, Pavia, Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia, Italy
- *Correspondence: Lorenzo Fassina, ; Nora Bloise, ; Murugan Ramalingam, ; Maria Gabriella Cusella De Angelis, ; Livia Visai,
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9
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Fassina L, Muzio FPL. A random shuffle method to expand a narrow dataset: A heart failure cohort example. Vascul Pharmacol 2022. [DOI: 10.1016/j.vph.2022.107041] [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: 11/06/2022]
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10
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Muzio FPL, Rozzi G, Rossi S, Luciani GB, Foresti R, Cabassi A, Fassina L, Miragoli M. Supervised machine learning classifiers and cardiac kinematics support decision-making during open-chest surgery of Tetralogy of Fallot patients. Vascul Pharmacol 2022. [DOI: 10.1016/j.vph.2022.107053] [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: 11/07/2022]
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11
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Tohidi H, Maleki-Jirsaraei N, Simchi A, Mohandes F, Emami Z, Fassina L, Naro F, Conti B, Barbagallo F. An Electroconductive, Thermosensitive, and Injectable Chitosan/Pluronic/Gold-Decorated Cellulose Nanofiber Hydrogel as an Efficient Carrier for Regeneration of Cardiac Tissue. Materials (Basel) 2022; 15:ma15155122. [PMID: 35897556 PMCID: PMC9330822 DOI: 10.3390/ma15155122] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 06/26/2022] [Revised: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 12/10/2022]
Abstract
Myocardial infarction is a major cause of death worldwide and remains a social and healthcare burden. Injectable hydrogels with the ability to locally deliver drugs or cells to the damaged area can revolutionize the treatment of heart diseases. Herein, we formulate a thermo-responsive and injectable hydrogel based on conjugated chitosan/poloxamers for cardiac repair. To tailor the mechanical properties and electrical signal transmission, gold nanoparticles (AuNPs) with an average diameter of 50 nm were physically bonded to oxidized bacterial nanocellulose fibers (OBC) and added to the thermosensitive hydrogel at the ratio of 1% w/v. The prepared hydrogels have a porous structure with open pore channels in the range of 50−200 µm. Shear rate sweep measurements demonstrate a reversible phase transition from sol to gel with increasing temperature and a gelation time of 5 min. The hydrogels show a shear-thinning behavior with a shear modulus ranging from 1 to 12 kPa dependent on gold concentration. Electrical conductivity studies reveal that the conductance of the polymer matrix is 6 × 10−2 S/m at 75 mM Au. In vitro cytocompatibility assays by H9C2 cells show high biocompatibility (cell viability of >90% after 72 h incubation) with good cell adhesion. In conclusion, the developed nanocomposite hydrogel has great potential for use as an injectable biomaterial for cardiac tissue regeneration.
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Affiliation(s)
- Hajar Tohidi
- Department of Physics and Chemistry, Alzahra University, Vanak Village Street, Tehran 19938 93973, Iran;
| | - Nahid Maleki-Jirsaraei
- Department of Physics and Chemistry, Alzahra University, Vanak Village Street, Tehran 19938 93973, Iran;
- Correspondence: (N.M.-J.); (A.S.)
| | - Abdolreza Simchi
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, Tehran 14588 89694, Iran; (F.M.); (Z.E.)
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Azadi Avenue, Tehran 14588 89694, Iran
- Correspondence: (N.M.-J.); (A.S.)
| | - Fatemeh Mohandes
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, Tehran 14588 89694, Iran; (F.M.); (Z.E.)
| | - Zahra Emami
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, Tehran 14588 89694, Iran; (F.M.); (Z.E.)
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, 27100 Pavia, Italy;
| | - Fabio Naro
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University, 00185 Rome, Italy;
| | - Bice Conti
- Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy;
| | - Federica Barbagallo
- Department of Experimental Medicine, Sapienza University, 00185 Rome, Italy; or
- Faculty of Medicine and Surgery, Kore University of Enna, 94100 Enna, Italy
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12
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Terrie L, Burattini M, Van Vlierberghe S, Fassina L, Thorrez L. Enhancing Myoblast Fusion and Myotube Diameter in Human 3D Skeletal Muscle Constructs by Electromagnetic Stimulation. Front Bioeng Biotechnol 2022; 10:892287. [PMID: 35814025 PMCID: PMC9256958 DOI: 10.3389/fbioe.2022.892287] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 06/06/2022] [Indexed: 11/25/2022] Open
Abstract
Skeletal muscle tissue engineering (SMTE) aims at the in vitro generation of 3D skeletal muscle engineered constructs which mimic the native muscle structure and function. Although native skeletal muscle is a highly dynamic tissue, most research approaches still focus on static cell culture methods, while research on stimulation protocols indicates a positive effect, especially on myogenesis. A more mature muscle construct may be needed especially for the potential applications for regenerative medicine purposes, disease or drug disposition models. Most efforts towards dynamic cell or tissue culture methods have been geared towards mechanical or electrical stimulation or a combination of those. In the context of dynamic methods, pulsed electromagnetic field (PEMF) stimulation has been extensively used in bone tissue engineering, but the impact of PEMF on skeletal muscle development is poorly explored. Here, we evaluated the effects of PEMF stimulation on human skeletal muscle cells both in 2D and 3D experiments. First, PEMF was applied on 2D cultures of human myoblasts during differentiation. In 2D, enhanced myogenesis was observed, as evidenced by an increased myotube diameter and fusion index. Second, 2D results were translated towards 3D bioartificial muscles (BAMs). BAMs were subjected to PEMF for varying exposure times, where a 2-h daily stimulation was found to be effective in enhancing 3D myotube formation. Third, applying this protocol for the entire 16-days culture period was compared to a stimulation starting at day 8, once the myotubes were formed. The latter was found to result in significantly higher myotube diameter, fusion index, and increased myosin heavy chain 1 expression. This work shows the potential of electromagnetic stimulation for enhancing myotube formation both in 2D and 3D, warranting its further consideration in dynamic culturing techniques.
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Affiliation(s)
- Lisanne Terrie
- Tissue Engineering Lab, Dep. Development and Regeneration, KU Leuven Kulak, Kortrijk, Belgium
| | - Margherita Burattini
- Tissue Engineering Lab, Dep. Development and Regeneration, KU Leuven Kulak, Kortrijk, Belgium
- Dept. of Surgical Sciences, Dentistry and Maternity, University of Verona, Verona, Italy
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Dep. of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Lorenzo Fassina
- Dept. of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Lieven Thorrez
- Tissue Engineering Lab, Dep. Development and Regeneration, KU Leuven Kulak, Kortrijk, Belgium
- *Correspondence: Lieven Thorrez,
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13
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La Porta E, Baiardi P, Fassina L, Faragli A, Perna S, Tovagliari F, Tallone I, Talamo G, Secondo G, Mazzarello G, Esposito V, Pasini M, Lupo F, Deferrari G, Bassetti M, Esposito C. The role of kidney dysfunction in COVID-19 and the influence of age. Sci Rep 2022; 12:8650. [PMID: 35606394 PMCID: PMC9125966 DOI: 10.1038/s41598-022-12652-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 05/06/2022] [Indexed: 12/15/2022] Open
Abstract
COVID-19 is strongly influenced by age and comorbidities. Acute kidney injury (AKI) is a frequent finding in COVID-19 patients and seems to be associated to mortality and severity. On the other hand, the role of kidney dysfunction in COVID-19 is still debated. We performed a retrospective study in a cohort of 174 hospitalized COVID-19 patients in Italy from March 3rd to May 21st 2020, to investigate the role of kidney dysfunction on COVID-19 severity and mortality. Moreover, we examined in depth the relationship between kidney function, age, and progression of COVID-19, also using different equations to estimate the glomerular filtration rate (GFR). We performed logistic regressions, while a predictive analysis was made through a machine learning approach. AKI and death occurred respectively in 10.2% and 19.5%, in our population. The major risk factors for mortality in our cohort were age [adjusted HR, 6.2; 95% confidence interval (CI) 1.8-21.4] and AKI [3.36 (1.44-7.87)], while, in these relationships, GFR at baseline mitigated the role of age. The occurrence of AKI was influenced by baseline kidney function, D-dimer, procalcitonin and hypertension. Our predictive analysis for AKI and mortality reached an accuracy of ≥ 94% and ≥ 91%, respectively. Our study scales down the role of kidney function impairment on hospital admission , especially in elderly patients. BIS-1 formula demonstrated a worse performance to predict the outcomes in COVID-19 patients when compared with MDRD and CKD-EPI.
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Affiliation(s)
- Edoardo La Porta
- Division of Nephrology, Dialysis and Transplantation, Scientific Institute for Research and Health Care, IRCCS Istituto Giannina Gaslini, via Gerolamo Gaslini 5, 16147, Genoa, Italy.
- Department of Internal Medicine (DiMi), University of Genoa, Genoa, Italy.
| | - Paola Baiardi
- Scientific Direction, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Alessandro Faragli
- Department of Cardiology, Charité-University Medicine Berlin, Campus Virchow Klinikum, Berlin, Germany
| | - Simone Perna
- Department of Biology, Sakhir Campus, College of Science, University of Bahrain, Sakhir, Bahrain
| | | | - Ilaria Tallone
- Nephrology Department, Ospedale San Paolo, Savona, Italy
| | | | | | - Giovanni Mazzarello
- Infectious Disease Clinic Genoa University, Ospedale San Martino, Genoa, Italy
| | - Vittoria Esposito
- Nephrology and Dialysis Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Matteo Pasini
- Department of Cardionephrology, Istituto Clinico Ligure Di Alta Specialità (ICLAS), GVM Care and Research, Rapallo, GE, Italy
| | - Francesca Lupo
- Department of Cardionephrology, Istituto Clinico Ligure Di Alta Specialità (ICLAS), GVM Care and Research, Rapallo, GE, Italy
| | - Giacomo Deferrari
- Department of Internal Medicine (DiMi), University of Genoa, Genoa, Italy
- Department of Cardionephrology, Istituto Clinico Ligure Di Alta Specialità (ICLAS), GVM Care and Research, Rapallo, GE, Italy
| | - Matteo Bassetti
- Infectious Disease Clinic Genoa University, Ospedale San Martino, Genoa, Italy
| | - Ciro Esposito
- Nephrology and Dialysis Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
- University of Pavia, Pavia, Italy
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14
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Fassina L, Assenza MR, Miragoli M, Isidori AM, Naro F, Barbagallo F. Cell Shortening and Calcium Homeostasis Analysis in Adult Cardiomyocytes via a New Software Tool. Biomedicines 2022; 10:biomedicines10030640. [PMID: 35327442 PMCID: PMC8945339 DOI: 10.3390/biomedicines10030640] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 11/16/2022] Open
Abstract
Intracellular calcium (Ca2+) is the central regulator of heart contractility. Indeed, it couples the electrical signal, which pervades the myocardium, with cardiomyocytes contraction. Moreover, alterations in calcium management are the main factors contributing to the mechanical and electrical dysfunction observed in failing hearts. So, simultaneous analysis of the contractile function and intracellular Ca2+ is indispensable to evaluate cardiomyocytes activity. Intracellular Ca2+ variations and fraction shortening are commonly studied with fluorescent Ca2+ indicator dyes associated with microscopy techniques. However, tracking and dealing with multiple files manually is time-consuming and error-prone and often requires expensive apparatus and software. Here, we announce a new, user-friendly image processing and analysis tool, based on ImageJ-Fiji/MATLAB® software, to evaluate the major cardiomyocyte functional parameters. We succeeded in analyzing fractional cell shortening, Ca2+ transient amplitude, and the kinematics/dynamics parameters of mouse isolated adult cardiomyocytes. The proposed method can be applied to evaluate changes in the Ca2+ cycle and contractile behavior in genetically or pharmacologically induced disease models, in drug screening and other common applications to assess mammalian cardiomyocyte functions.
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Affiliation(s)
- Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering (DIII), University of Pavia, 27100 Pavia, Italy;
| | - Maria Rita Assenza
- Institute of Biochemistry and Cell Biology, CNR, 00015 Monterotondo, Italy;
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University, 00161 Rome, Italy;
| | - Michele Miragoli
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy;
- Humanitas Research Hospital—IRCCS, 20089 Rozzano, Italy
| | - Andrea M. Isidori
- Department of Experimental Medicine, Sapienza University, 00161 Rome, Italy;
| | - Fabio Naro
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University, 00161 Rome, Italy;
| | - Federica Barbagallo
- Department of Experimental Medicine, Sapienza University, 00161 Rome, Italy;
- Correspondence:
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15
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Bloise N, Fassina L, Focarete ML, Lotti N, Visai L. Haralick's texture analysis to predict cellular proliferation on randomly oriented electrospun nanomaterials. Nanoscale Adv 2022; 4:1330-1335. [PMID: 36133676 PMCID: PMC9419736 DOI: 10.1039/d1na00890k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 01/24/2022] [Indexed: 05/13/2023]
Abstract
Using a computer vision approach we have extracted the Haralick's texture features of randomly oriented electrospun nanomaterials in order to predict the proliferative behavior of cells which were subsequently seeded onto the nanosurfaces.
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Affiliation(s)
- Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia 27100 Pavia Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS 27100 Pavia Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia 27100 Pavia Italy
| | - Maria Letizia Focarete
- Department of Chemistry "Giacomo Ciamician", INSTM UdR of Bologna, University of Bologna 40126 Bologna Italy
| | - Nadia Lotti
- Civil, Chemical, Environmental and Materials Engineering Department, University of Bologna 40131 Bologna Italy
- Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials Technology, CIRI-MAM, University of Bologna 40131 Bologna Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia 27100 Pavia Italy
- Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS 27100 Pavia Italy
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16
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Rebuzzini P, Civello C, Fassina L, Zuccotti M, Garagna S. Functional and structural phenotyping of cardiomyocytes in the 3D organization of embryoid bodies exposed to arsenic trioxide. Sci Rep 2021; 11:23116. [PMID: 34848780 PMCID: PMC8633008 DOI: 10.1038/s41598-021-02590-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/14/2021] [Accepted: 11/12/2021] [Indexed: 11/09/2022] Open
Abstract
Chronic exposure to environmental pollutants threatens human health. Arsenic, a world-wide diffused toxicant, is associated to cardiac pathology in the adult and to congenital heart defects in the foetus. Poorly known are its effects on perinatal cardiomyocytes. Here, bioinformatic image-analysis tools were coupled with cellular and molecular analyses to obtain functional and structural quantitative metrics of the impairment induced by 0.1, 0.5 or 1.0 µM arsenic trioxide exposure on the perinatal-like cardiomyocyte component of mouse embryoid bodies, within their 3D complex cell organization. With this approach, we quantified alterations to the (a) beating activity; (b) sarcomere organization (texture, edge, repetitiveness, height and width of the Z bands); (c) cardiomyocyte size and shape; (d) volume occupied by cardiomyocytes within the EBs. Sarcomere organization and cell morphology impairment are paralleled by differential expression of sarcomeric α-actin and Tropomyosin proteins and of acta2, myh6 and myh7 genes. Also, significant increase of Cx40, Cx43 and Cx45 connexin genes and of Cx43 protein expression profiles is paralleled by large Cx43 immunofluorescence signals. These results provide new insights into the role of arsenic in impairing cytoskeletal components of perinatal-like cardiomyocytes which, in turn, affect cell size, shape and beating capacity.
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Affiliation(s)
- Paola Rebuzzini
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Via Ferrata 9, 27100, Pavia, Italy.
| | - Cinzia Civello
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Via Ferrata 9, 27100, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering (DIII), University of Pavia, Via Ferrata 5, Pavia, Italy.,Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, Pavia, Italy
| | - Maurizio Zuccotti
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Via Ferrata 9, 27100, Pavia, Italy. .,Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, Pavia, Italy.
| | - Silvia Garagna
- Laboratory of Developmental Biology, Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, Via Ferrata 9, 27100, Pavia, Italy. .,Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, Pavia, Italy.
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17
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Gatto ML, Furlani M, Giuliani A, Bloise N, Fassina L, Visai L, Mengucci P. Biomechanical performances of PCL/HA micro- and macro-porous lattice scaffolds fabricated via laser powder bed fusion for bone tissue engineering. Mater Sci Eng C Mater Biol Appl 2021; 128:112300. [PMID: 34474851 DOI: 10.1016/j.msec.2021.112300] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 12/27/2022]
Abstract
The present experimental study aims to extend know-how on resorbable polycaprolactone/hydroxyapatite (PCL/HA, 70/30 wt%) scaffolds, produced by Laser Powder Bed Fusion (LPBF) technology, to geometrically complex lattice structures and micro porous struts. Using optimized LPBF printing parameters, micro- and macro-porous scaffolds for bone tissue regeneration were produced by regularly repeating in space Diamond (DO) and Rhombic Dodecahedron (RD) elementary unit cells. After production, scaffolds were submitted to structural, mechanical, and biological characterization. The interaction of scaffolds with human Mesenchymal Stem Cells (hMSCs) allowed studying the degradative processes of the PCL matrix. Biomechanical performances and biodegradation of scaffolds were compared to literature results and bone tissue data. Mechanical compression test, biological viability up to 4 days of incubation and degradation rate evidenced strong dependence of scaffold behavior on unit cell geometry as well as on global geometrical features.
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Affiliation(s)
- Maria Laura Gatto
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Michele Furlani
- Department of Clinical Science, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Alessandra Giuliani
- Department of Clinical Science, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Nora Bloise
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy; Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, 27100 Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine, Centre for Health Technologies (CHT), INSTM UdR of Pavia, University of Pavia, 27100 Pavia, Italy; Medicina Clinica-Specialistica, UOR5 Laboratorio di Nanotecnologie, ICS Maugeri, IRCCS, Pavia, Italy
| | - Paolo Mengucci
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
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18
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Rozzi G, Lo Muzio FP, Fassina L, Rossi S, Statello R, Sandrini C, Laricchiuta M, Faggian G, Miragoli M, Luciani GB. Right ventricular functional recovery depends on timing of pulmonary valve replacement in tetralogy of Fallot: a video kinematic study. Eur J Cardiothorac Surg 2021; 59:1329-1336. [PMID: 33547473 DOI: 10.1093/ejcts/ezab026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/19/2020] [Accepted: 12/07/2020] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Indications for and timing of pulmonary valve replacement (PVR) after tetralogy of Fallot repair are controversial. Among magnetic resonance imaging indices proposed to time valve replacement, a right ventricular (RV) end-diastolic volume index greater than 160 ml/m2 is often used. Recent evidence suggests that this value may still identify patients with irreversible RV dysfunction, thus hindering recovery. Our goal was to define, using intraoperative video kinematic evaluation, whether a relationship exists between timing of PVR and early functional recovery after surgery. METHODS Between November 2016 and November 2018, a total of 12 consecutive patients aged 27.1 ± 19.1 years underwent PVR on average 22.2 ± 13.3 years after tetralogy of Fallot repair. Mean RV end-diastolic volume evident on the magnetic resonance images was 136.9 ± 35.7 ml/m2. Intraoperative cardiac kinematics were assessed by video kinematic evaluation via a high-speed camera acquiring videos at 200 fps before and after valve replacement. RESULTS Patients presenting with RV end-diastolic volume <147 ml/m2 were significantly younger (11.2 ± 5.0 vs 38.4 ± 17.0; P = 0.005) and had a shorter time interval to valve replacement (11.0 ± 5.2 vs 30.1 ± 11.3; P = 0.03). The entire population showed a moderate correlation among energy expenditure, cardiac fatigue, perimeter of contraction and preoperative RV end-diastolic volume index. Both groups showed a reduction in all kinematic parameters after PVR, but those with end-diastolic volume >147 ml/m2 showed an unpredictable outcome. CONCLUSIONS Video kinematic evaluation provides insight into intraoperative RV recovery in patients with tetralogy of Fallot undergoing PVR. Accordingly, functional recovery can be expected in patients with preoperative end-diastolic volume <147 ml/m2.
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Affiliation(s)
- Giacomo Rozzi
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy.,Department of Medicine and Surgery, University of Parma, Parma, Italy.,Departement of Molecular Cardiology, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
| | - Francesco Paolo Lo Muzio
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy.,Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Stefano Rossi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Rosario Statello
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | | | - Maira Laricchiuta
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
| | - Giuseppe Faggian
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Verona, Italy
| | - Michele Miragoli
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,Departement of Molecular Cardiology, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy
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19
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Faragli A, Tanacli R, Kolp C, Abawi D, Lapinskas T, Stehning C, Schnackenburg B, Lo Muzio FP, Fassina L, Pieske B, Nagel E, Post H, Kelle S, Alogna A. Cardiovascular magnetic resonance-derived left ventricular mechanics-strain, cardiac power and end-systolic elastance under various inotropic states in swine. J Cardiovasc Magn Reson 2020; 22:79. [PMID: 33256761 PMCID: PMC7708216 DOI: 10.1186/s12968-020-00679-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 11/17/2019] [Accepted: 10/06/2020] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Cardiovascular magnetic resonance (CMR) strain imaging is an established technique to quantify myocardial deformation. However, to what extent left ventricular (LV) systolic strain, and therefore LV mechanics, reflects classical hemodynamic parameters under various inotropic states is still not completely clear. Therefore, the aim of this study was to investigate the correlation of LV global strain parameters measured via CMR feature tracking (CMR-FT, based on conventional cine balanced steady state free precession (bSSFP) images) with hemodynamic parameters such as cardiac index (CI), cardiac power output (CPO) and end-systolic elastance (Ees) under various inotropic states. METHODS Ten anaesthetized, healthy Landrace swine were acutely instrumented closed-chest and transported to the CMR facility for measurements. After baseline measurements, two steps were performed: (1) dobutamine-stress (Dobutamine) and (2) verapamil-induced cardiovascular depression (Verapamil). During each protocol, CMR images were acquired in the short axisand apical 2Ch, 3Ch and 4Ch views. MEDIS software was utilized to analyze global longitudinal (GLS), global circumferential (GCS), and global radial strain (GRS). RESULTS Dobutamine significantly increased heart rate, CI, CPO and Ees, while Verapamil decreased them. Absolute values of GLS, GCS and GRS accordingly increased during Dobutamine infusion, while GLS and GCS decreased during Verapamil. Linear regression analysis showed a moderate correlation between GLS, GCS and LV hemodynamic parameters, while GRS correlated poorly. Indexing global strain parameters for indirect measures of afterload, such as mean aortic pressure or wall stress, significantly improved these correlations, with GLS indexed for wall stress reflecting LV contractility as the clinically widespread LV ejection fraction. CONCLUSION GLS and GCS correlate accordingly with LV hemodynamics under various inotropic states in swine. Indexing strain parameters for indirect measures of afterload substantially improves this correlation, with GLS being as good as LV ejection fraction in reflecting LV contractility. CMR-FT-strain imaging may be a quick and promising tool to characterize LV hemodynamics in patients with varying degrees of LV dysfunction.
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Affiliation(s)
- A Faragli
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - R Tanacli
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - C Kolp
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - D Abawi
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
| | - T Lapinskas
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Street 2, 50161, Kaunas, Lithuania
| | - C Stehning
- Clinical Science, Philips Healthcare, Röntgenstr. 24, 22335, Hamburg, Germany
| | - B Schnackenburg
- Clinical Science, Philips Healthcare, Röntgenstr. 24, 22335, Hamburg, Germany
| | - F P Lo Muzio
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona, Via S. Francesco 22, 37129, Verona, Italy
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126, Parma, Italy
| | - L Fassina
- Department of Electrical, Computer and Biomedical Engineering (DIII), Centre for Health Technologies (CHT), University of Pavia, Via Ferrata 5, 27100, Pavia, Italy
| | - B Pieske
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - E Nagel
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Hospital Frankfurt, Frankfurt am Main, Germany
| | - H Post
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Cardiology, Contilia Heart and Vessel Centre, St. Marien-Hospital Mülheim, 45468, Mülheim, Germany
| | - S Kelle
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany
- Department of Internal Medicine/Cardiology, Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - A Alogna
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
- Berlin Institute of Health (BIH), Berlin, Germany.
- DZHK (German Centre for Cardiovascular Research), partner site, Berlin, Germany.
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20
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Fassina L, Faragli A, Lo Muzio FP, Kelle S, Campana C, Pieske B, Edelmann F, Alogna A. A Random Shuffle Method to Expand a Narrow Dataset and Overcome the Associated Challenges in a Clinical Study: A Heart Failure Cohort Example. Front Cardiovasc Med 2020; 7:599923. [PMID: 33330661 PMCID: PMC7714902 DOI: 10.3389/fcvm.2020.599923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/19/2020] [Indexed: 11/13/2022] Open
Abstract
Heart failure (HF) affects at least 26 million people worldwide, so predicting adverse events in HF patients represents a major target of clinical data science. However, achieving large sample sizes sometimes represents a challenge due to difficulties in patient recruiting and long follow-up times, increasing the problem of missing data. To overcome the issue of a narrow dataset cardinality (in a clinical dataset, the cardinality is the number of patients in that dataset), population-enhancing algorithms are therefore crucial. The aim of this study was to design a random shuffle method to enhance the cardinality of an HF dataset while it is statistically legitimate, without the need of specific hypotheses and regression models. The cardinality enhancement was validated against an established random repeated-measures method with regard to the correctness in predicting clinical conditions and endpoints. In particular, machine learning and regression models were employed to highlight the benefits of the enhanced datasets. The proposed random shuffle method was able to enhance the HF dataset cardinality (711 patients before dataset preprocessing) circa 10 times and circa 21 times when followed by a random repeated-measures approach. We believe that the random shuffle method could be used in the cardiovascular field and in other data science problems when missing data and the narrow dataset cardinality represent an issue.
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Affiliation(s)
- Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Alessandro Faragli
- Department of Internal Medicine and Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany.,Department of Internal Medicine and Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Francesco Paolo Lo Muzio
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona, Verona, Italy.,Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Sebastian Kelle
- Department of Internal Medicine and Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany.,Department of Internal Medicine and Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Carlo Campana
- Department of Cardiology, Sant'Anna Hospital, ASST-Lariana, Como, Italy
| | - Burkert Pieske
- Department of Internal Medicine and Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany.,Department of Internal Medicine and Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Frank Edelmann
- Department of Internal Medicine and Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Alessio Alogna
- Department of Internal Medicine and Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
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21
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Montagna G, Cristofaro F, Fassina L, Bruni G, Cucca L, Kochen A, Divieti Pajevic P, Bragdon B, Visai L, Gerstenfeld L. An in vivo Comparison Study Between Strontium Nanoparticles and rhBMP2. Front Bioeng Biotechnol 2020; 8:499. [PMID: 32612980 PMCID: PMC7308719 DOI: 10.3389/fbioe.2020.00499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/29/2020] [Indexed: 01/24/2023] Open
Abstract
The osteoinductive property of strontium was repeatedly proven in the last decades. Compelling in vitro data demonstrated that strontium hydroxyapatite nanoparticles exert a dual action, by promoting osteoblasts-driven matrix secretion and inhibiting osteoclasts-driven matrix resorption. Recombinant human bone morphogenetic protein 2 (rhBMP2) is a powerful osteoinductive biologic, used for the treatment of vertebral fractures and critically-sized bone defects. Although effective, the use of rhBMP2 has limitations due its recombinant morphogen nature. In this study, we examined the comparison between two osteoinductive agents: rhBMP2 and the innovative strontium-substituted hydroxyapatite nanoparticles. To test their effectiveness, we independently loaded Gelfoam sponges with the two osteoinductive agents and used the sponges as agent-carriers. Gelfoam are FDA-approved biodegradable medical devices used as delivery system for musculoskeletal defects. Their porous structure and spongy morphology make them attractive in orthopedic field. The abiotic characterization of the loaded sponges, involving ion release pattern and structure investigation, was followed by in vivo implantation onto the periosteum of healthy mice and comparison of the effects induced by each implant was performed. Abiotic analysis demonstrated that strontium was continuously released from the sponges over 28 days with a pattern similar to rhBMP2. Histological observations and gene expression analysis showed stronger endochondral ossification elicited by strontium compared to rhBMP2. Osteoclast activity was more inhibited by strontium than by rhBMP2. These results demonstrated the use of sponges loaded with strontium nanoparticles as potential bone grafts might provide better outcomes for complex fractures. Strontium nanoparticles are a novel and effective non-biologic treatment for bone injuries and can be used as novel powerful therapeutics for bone regeneration.
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Affiliation(s)
- Giulia Montagna
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Pavia, Italy.,Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Francesco Cristofaro
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Giovanna Bruni
- C.S.G.I. Department of Chemistry, Physical-Chemistry Section, University of Pavia, Pavia, Italy
| | - Lucia Cucca
- Department of Chemistry, University of Pavia, Pavia, Italy
| | - Alejandro Kochen
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA, United States
| | - Paola Divieti Pajevic
- Department of Translational Dental Medicine, Goldman School of Dental Medicine, Boston University, Boston, MA, United States
| | - Beth Bragdon
- Department of Orthopaedic Surgery, Boston University School of Medicine, Boston, MA, United States
| | - Livia Visai
- Department of Molecular Medicine (DMM), Center for Health Technologies (CHT), UdR INSTM, University of Pavia, Pavia, Italy.,Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
| | - Louis Gerstenfeld
- Department of Orthopaedic Surgery, Boston University School of Medicine, Boston, MA, United States
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Rebuzzini P, Civello C, Nantia Akono E, Fassina L, Zuccotti M, Garagna S. Chronic cypermethrin exposure alters mouse embryonic stem cell growth kinetics, induces Phase II detoxification response and affects pluripotency and differentiation gene expression. Eur J Histochem 2020; 64. [PMID: 32214279 PMCID: PMC7036707 DOI: 10.4081/ejh.2020.3084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 11/12/2019] [Accepted: 02/05/2020] [Indexed: 12/21/2022] Open
Abstract
Worldwide uncontrolled use of synthetic pyrethroids contaminates water and soil leading to health hazards. Cypermethrin (CYP), the most used pyrethroid, induces detrimental effects on adults and embryos at different stages of development of several vertebrate species. In Mammals, CYP-induced alterations have been previously described in adult somatic cells and in post-implantation embryos. It remains unknown whether CYP has effects during pre-implantation development. Studies to access pre-implantation embryo toxicity are complicated by the restricted number of blastocysts that may be obtained, either in vivo or in vitro. Embryonic stem cells (ESCs) are an in vitro model study that overcomes these limitations, as millions of pluripotent cells are available to the analysis. Also, ESCs maintain the same pluripotency characteristics and differentiation capacity of the inner cell mass (ICM) present in the blastocyst, from which they derive. In this work, using mouse R1 ESCs, we studied CYP-induced cell death, ROS production, the activation of oxidative stress-related and detoxification responses and the population growth kinetics following 72 h exposure at the 0.3 mM LD50 dose. Also, the expression levels of pluripotency genes in exposed ESCs and of markers of the three germ layers after their differentiation into embryoid bodies (EBs) were determined. Two apoptotic waves were observed at 12-24 h and at 72 h. The increase of ROS production, at 24 h until the end of the culture period, was accompanied by the induction, at 48 h, of redox-related Cat, Sod1, Sod2, Gpx1 and Gpx4 genes. Up-regulation of Cyp1b1, but not of Cyp1a1, phase I gene was detected at 72 h and induction of Nqo1, Gsta1 and Ugt1a6 phase II genes began at 24 h exposure. The results show that exposed R1 ESCs activate oxidative stress-related and detoxification responses, although not sufficient, during the culture period tested, to warrant recovery of the growth rate observed in untreated cells. Also, CYP exposure altered the expression of Oct-4 and Nanog pluripotency genes in ESCs and, when differentiated into EBs, the expression of Fgf5, Brachyury and Foxa2, early markers of the ectoderm, mesoderm and endoderm germ layers, respectively. NIH/3T3 cells, a differentiated cell line of embryonic origin, were used for comparison.
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Affiliation(s)
- Paola Rebuzzini
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia.
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23
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Rozzi G, Lo Muzio FP, Sandrini C, Rossi S, Fassina L, Faggian G, Miragoli M, Luciani GB. Real-time video kinematic evaluation of the in situ beating right ventricle after pulmonary valve replacement in patients with tetralogy of Fallot: a pilot study. Interact Cardiovasc Thorac Surg 2019; 29:625-631. [DOI: 10.1093/icvts/ivz120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 04/01/2019] [Accepted: 04/14/2019] [Indexed: 01/30/2023] Open
Abstract
Abstract
OBJECTIVES
The timing for pulmonary valve replacement (PVR) after tetralogy of Fallot repair is controversial, due to limitations in estimating right ventricular dysfunction and recovery. Intraoperative imaging could add prognostic information, but transoesophageal echocardiography is unsuitable for exploring right heart function. Right ventricular function after PVR was investigated in real time using a novel video-based contactless kinematic evaluation technology (Vi.Ki.E.), which calculates cardiac fatigue and energy consumption.
METHODS
Six consecutive patients undergoing PVR at 13.8 ± 2.6 years (range 6.9–19.8) after the repair of tetralogy of Fallot were enrolled. Mean right ventricular end-diastolic and end-systolic volume at magnetic resonance imaging were 115.6 ± 16.2 ml/m2 and 61.5 ± 14.6 ml/m2, respectively. Vi.Ki.E. uses a fast-resolution camera placed 45 cm above the open chest, recording cardiac kinematics before and after PVR. An algorithm defines cardiac parameters, such as energy, fatigue, maximum contraction velocity and tissue displacement.
RESULTS
There were no perioperative complications, with patients discharged in satisfactory clinical conditions after 7 ± 2 days (range 5–9). Vi.Ki.E. parameters describing right ventricular dysfunction decreased significantly after surgery: energy consumption by 45% [271 125 ± 9422 (mm/s)2 vs 149 202 ± 11 980 (mm/s)2, P = 0.0001], cardiac fatigue by 12% (292 671 ± 29 369 mm/s2 vs 258 755 ± 42 750 mm/s2, P = 0.01), contraction velocity by 54% (3412 ± 749 mm/s vs 1579 ± 400 mm/s, P = 0.0007) and displacement by 23% (27 ± 4 mm vs 21 ± 4 mm, P = 0.01). Patients undergoing PVR at lower end-diastolic volumes, had greater functional recovery of Vi.Ki.E. parameters.
CONCLUSIONS
Intraoperative Vi.Ki.E shows immediate recovery of right ventricular mechanics after PVR with less cardiac fatigue and energy consumption, providing novel insights that may have a prognostic relevance for functional recovery.
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Affiliation(s)
- Giacomo Rozzi
- Department of Surgery, Dentistry, Pediatrics and Gynaecology, University of Verona, Verona, Italy
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Francesco P Lo Muzio
- Department of Surgery, Dentistry, Pediatrics and Gynaecology, University of Verona, Verona, Italy
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Camilla Sandrini
- Department of Surgery, Dentistry, Pediatrics and Gynaecology, University of Verona, Verona, Italy
| | - Stefano Rossi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Giuseppe Faggian
- Department of Surgery, Dentistry, Pediatrics and Gynaecology, University of Verona, Verona, Italy
| | - Michele Miragoli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Humanitas Clinical and Research Center, Rozzano, Italy
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24
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Lo Muzio FP, Rozzi G, Rossi S, Gerbolés AG, Fassina L, Pelà G, Luciani GB, Miragoli M. In-situ optical assessment of rat epicardial kinematic parameters reveals frequency-dependent mechanic heterogeneity related to gender. Prog Biophys Mol Biol 2019; 154:94-101. [PMID: 31126627 DOI: 10.1016/j.pbiomolbio.2019.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Gender-related cardiac mechanics following the electrical activity has been investigated from basic to clinical research, but results are still controversial. The aim of this work is to study the gender related cardiac mechanics and to focus on its heart rate dependency. METHODS We employed 12 Sprague Dawley rats (5 males and 7 females) of the same age and, through a novel high resolution artificial vision contactless approach, we evaluated in-situ cardiac kinematic. The hearts were paced on the right atria appendage via cathodal stimuli at rising frequency. RESULTS Kinematic data obtained at rising pacing rates are different between male and female rat hearts: male tended to maintain the same level of cardiac force, energy and contractility, while female responded with an increment of such parameters at increasing heart rate. Female hearts preserved their pattern of contraction and epicardial torsion (vorticity) at rising pacing rates compared to male. Furthermore, we observed a difference in the mechanical restitution: systolic time vs. diastolic time, as an index of cardiac performance, reached higher value in male compared to female hearts. CONCLUSION Our innovative technology was capable to evaluate in-situ rat epicardial kinematic at high stimulation frequency, revealing that male preserved kinematic parameters but varying the pattern of contraction/relaxation. On the contrary, female preserved the pattern of contraction/relaxation increasing kinematic parameters.
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Affiliation(s)
- Francesco Paolo Lo Muzio
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona Via S. Francesco 22, 37129, Verona, Italy; Department of Medicine and Surgery, University di Parma, via Gramsci 14, 43126, Parma, Italy
| | - Giacomo Rozzi
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona Via S. Francesco 22, 37129, Verona, Italy; Department of Medicine and Surgery, University di Parma, via Gramsci 14, 43126, Parma, Italy
| | - Stefano Rossi
- Department of Medicine and Surgery, University di Parma, via Gramsci 14, 43126, Parma, Italy
| | | | - Lorenzo Fassina
- Department of Industrial Engineering and Informatics, University of Pavia, Via Ferrata 1, 27100, Pavia, Italy
| | - Giovanna Pelà
- Department of Medicine and Surgery, University di Parma, via Gramsci 14, 43126, Parma, Italy
| | - Giovanni Battista Luciani
- Department of Surgery, Dentistry, Paediatrics and Gynaecology, University of Verona Via S. Francesco 22, 37129, Verona, Italy
| | - Michele Miragoli
- Department of Medicine and Surgery, University di Parma, via Gramsci 14, 43126, Parma, Italy; Humanitas Clinical and Research Center, Via Manzoni 56, 20089, Rozzano, Italy.
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25
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Rebuzzini P, Zuccolo E, Civello C, Fassina L, Arechaga J, Izquierdo A, Faris P, Zuccotti M, Moccia F, Garagna S. Polychlorinated biphenyls reduce the kinematics contractile properties of embryonic stem cells-derived cardiomyocytes by disrupting their intracellular Ca 2+ dynamics. Sci Rep 2018; 8:17909. [PMID: 30559452 PMCID: PMC6297156 DOI: 10.1038/s41598-018-36333-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 07/10/2018] [Accepted: 11/19/2018] [Indexed: 12/11/2022] Open
Abstract
Persistent organic pollutants are a group of chemicals that include polychlorinated biphenyls (PCBs). PCBs exposure during adult life increases incidence and severity of cardiomyopathies, whereas in utero exposure determines congenital heart defects. Being fat-soluble, PCBs are passed to newborns through maternal milk, impairing heart functionality in the adult. It is still unknown how PCBs impair cardiac contraction at cellular/molecular levels. Here, we study the molecular mechanisms by which PCBs cause the observed heart contraction defects, analysing the alterations of Ca2+ toolkit components that regulate contraction. We investigated the effect that Aroclor 1254 (Aroclor), a mixture of PCBs, has on perinatal-like cardiomyocytes derived from mouse embryonic stem cells. Cardiomyocytes, exposed to 1 or 2 µg/ml Aroclor for 24 h, were analyzed for their kinematics contractile properties and intracellular Ca2+ dynamics. We observed that Aroclor impairs cardiomyocytes contractile properties by inhibiting spontaneous Ca2+ oscillations. It disrupts intracellular Ca2+ homeostasis by reducing the sarcoplasmic reticulum Ca2+ content and by inhibiting voltage-gated Ca2+ entry. These findings contribute to the understanding of the molecular underpinnings of PCBs-induced cardiovascular alterations, which are emerging as an additional life-threatening hurdle associated to PCBs pollution. Therefore, PCBs-dependent alteration of intracellular Ca2+ dynamics is the most likely trigger of developmental cardiac functional alteration.
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Affiliation(s)
- Paola Rebuzzini
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie, Università degli Studi di Pavia, Pavia, Italy. .,Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Pavia, Italy.
| | - Estella Zuccolo
- Laboratorio di Fisiologia Generale, Dipartimento di Biologia e Biotecnologie, Università degli Studi di Pavia, Pavia, Italy
| | - Cinzia Civello
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie, Università degli Studi di Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Pavia, Italy.,Dipartimento di Ingegneria Industriale e dell'Informazione, Università degli Studi di Pavia, Pavia, Italy
| | - Juan Arechaga
- Laboratory of Stem Cells, Development and Cancer, Department of Cell Biology and Histology, Faculty of Medicine and Nursing, Universidad del País Vasco, Vizcaya, Spain
| | - Amaia Izquierdo
- Laboratory of Stem Cells, Development and Cancer, Department of Cell Biology and Histology, Faculty of Medicine and Nursing, Universidad del País Vasco, Vizcaya, Spain
| | - Pawan Faris
- Laboratorio di Fisiologia Generale, Dipartimento di Biologia e Biotecnologie, Università degli Studi di Pavia, Pavia, Italy.,Department of Biology, College of Science, Salahaddin University, Erbil, Kurdistan-Region of Iraq, Iraq
| | - Maurizio Zuccotti
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie, Università degli Studi di Pavia, Pavia, Italy. .,Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Pavia, Italy.
| | - Francesco Moccia
- Laboratorio di Fisiologia Generale, Dipartimento di Biologia e Biotecnologie, Università degli Studi di Pavia, Pavia, Italy
| | - Silvia Garagna
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie, Università degli Studi di Pavia, Pavia, Italy. .,Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Pavia, Italy.
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26
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Fassina L, Bloise N, Montagna G, Visai L, Mognaschi ME, Benazzo F, Magenes G. Biomaterials and biophysical stimuli for bone regeneration. J BIOL REG HOMEOS AG 2018; 32:41-49. [PMID: 30644280] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
First, we review basic concepts of Tissue Engineering, that is, how the tensegrity is able to modulate the cell behavior. Then, we review our experimental results regarding the bone tissue engineering via biomaterials and bioreactors.
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Affiliation(s)
- L Fassina
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Pavia, Italy
| | - N Bloise
- Dipartimento di Medicina Molecolare, Università di Pavia, Pavia, Italy
| | - G Montagna
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Pavia, Italy
- Dipartimento di Medicina Molecolare, Università di Pavia, Pavia, Italy
| | - L Visai
- Dipartimento di Medicina Molecolare, Università di Pavia, Pavia, Italy
| | - M E Mognaschi
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Pavia, Italy
| | - F Benazzo
- Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche, Università di Pavia, Pavia, Italy
| | - G Magenes
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Pavia, Italy
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27
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Bloise N, Petecchia L, Ceccarelli G, Fassina L, Usai C, Bertoglio F, Balli M, Vassalli M, Cusella De Angelis MG, Gavazzo P, Imbriani M, Visai L. The effect of pulsed electromagnetic field exposure on osteoinduction of human mesenchymal stem cells cultured on nano-TiO2 surfaces. PLoS One 2018; 13:e0199046. [PMID: 29902240 PMCID: PMC6002089 DOI: 10.1371/journal.pone.0199046] [Citation(s) in RCA: 24] [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: 01/29/2018] [Accepted: 05/30/2018] [Indexed: 12/11/2022] Open
Abstract
Human bone marrow-derived mesenchymal stem cells (hBM-MSCs) are considered a great promise in the repair and regeneration of bone. Considerable efforts have been oriented towards uncovering the best strategy to promote stem cells osteogenic differentiation. In previous studies, hBM-MSCs exposed to physical stimuli such as pulsed electromagnetic fields (PEMFs) or directly seeded on nanostructured titanium surfaces (TiO2) were shown to improve their differentiation to osteoblasts in osteogenic condition. In the present study, the effect of a daily PEMF-exposure on osteogenic differentiation of hBM-MSCs seeded onto nanostructured TiO2 (with clusters under 100 nm of dimension) was investigated. TiO2-seeded cells were exposed to PEMF (magnetic field intensity: 2 mT; intensity of induced electric field: 5 mV; frequency: 75 Hz) and examined in terms of cell physiology modifications and osteogenic differentiation. Results showed that PEMF exposure affected TiO2-seeded cells osteogenesis by interfering with selective calcium-related osteogenic pathways, and greatly enhanced hBM-MSCs osteogenic features such as the expression of early/late osteogenic genes and protein production (e.g., ALP, COL-I, osteocalcin and osteopontin) and ALP activity. Finally, PEMF-treated cells resulted to secrete into conditioned media higher amounts of BMP-2, DCN and COL-I than untreated cell cultures. These findings confirm once more the osteoinductive potential of PEMF, suggesting that its combination with TiO2 nanostructured surface might be a great option in bone tissue engineering applications.
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Affiliation(s)
- Nora Bloise
- Department of Molecular Medicine (DMM), Centre for Health Technologies (C.H.T.), INSTM Unit, University of Pavia, Pavia, Italy
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
- * E-mail: (NB); (LV)
| | | | - Gabriele Ceccarelli
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, Centre for Health Technologies (C.H.T.), University of Pavia, Pavia, Italy
| | - Cesare Usai
- Institute of Biophysics, National Research Council, Genova, Italy
| | - Federico Bertoglio
- Department of Molecular Medicine (DMM), Centre for Health Technologies (C.H.T.), INSTM Unit, University of Pavia, Pavia, Italy
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
| | - Martina Balli
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Massimo Vassalli
- Institute of Biophysics, National Research Council, Genova, Italy
| | - Maria Gabriella Cusella De Angelis
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Paola Gavazzo
- Institute of Biophysics, National Research Council, Genova, Italy
| | - Marcello Imbriani
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
- Department of Public Health, Experimental Medicine and Forensic, Centre for Health Technologies (C.H.T.), Human Anatomy Unit, University of Pavia, Pavia, Italy
| | - Livia Visai
- Department of Molecular Medicine (DMM), Centre for Health Technologies (C.H.T.), INSTM Unit, University of Pavia, Pavia, Italy
- Department of Occupational Medicine, Toxicology and Environmental Risks, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy
- * E-mail: (NB); (LV)
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28
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Cavalera F, Zanoni M, Merico V, Bui TTH, Belli M, Fassina L, Garagna S, Zuccotti M. A Neural Network-Based Identification of Developmentally Competent or Incompetent Mouse Fully-Grown Oocytes. J Vis Exp 2018. [PMID: 29553524 DOI: 10.3791/56668] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Infertility clinics would benefit from the ability to select developmentally competent vs. incompetent oocytes using non-invasive procedures, thus improving the overall pregnancy outcome. We recently developed a classification method based on microscopic live observations of mouse oocytes during their in vitro maturation from the germinal vesicle (GV) to the metaphase II stage, followed by the analysis of the cytoplasmic movements occurring during this time-lapse period. Here, we present detailed protocols of this procedure. Oocytes are isolated from fully-grown antral follicles and cultured for 15 h inside a microscope equipped for time-lapse analysis at 37 °C and 5% CO2. Pictures are taken at 8 min intervals. The images are analyzed using the Particle Image Velocimetry (PIV) method that calculates, for each oocyte, the profile of Cytoplasmic Movement Velocities (CMVs) occurring throughout the culture period. Finally, the CMVs of each single oocyte are fed through a mathematical classification tool (Feed-forward Artificial Neural Network, FANN), which predicts the probability of a gamete to be developmentally competent or incompetent with an accuracy of 91.03%. This protocol, set up for the mouse, could now be tested on oocytes of other species, including humans.
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Affiliation(s)
- Federica Cavalera
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia
| | - Mario Zanoni
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia
| | - Valeria Merico
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia
| | - Thi Thu Hien Bui
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia; Institute of Biotechnology, University of Helsinki
| | - Martina Belli
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia; Department of Reproductive Medicine, University of California San Diego
| | - Lorenzo Fassina
- Dipartimento di Ingegneria Industriale e dell'Informazione, University of Pavia
| | - Silvia Garagna
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia
| | - Maurizio Zuccotti
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia;
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29
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Fassina L, Rozzi G, Rossi S, Scacchi S, Galetti M, Lo Muzio FP, Del Bianco F, Colli Franzone P, Petrilli G, Faggian G, Miragoli M. Cardiac kinematic parameters computed from video of in situ beating heart. Sci Rep 2017; 7:46143. [PMID: 28397830 PMCID: PMC5387404 DOI: 10.1038/srep46143,10.1038/srep46143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/13/2017] [Indexed: 04/01/2024] Open
Abstract
Mechanical function of the heart during open-chest cardiac surgery is exclusively monitored by echocardiographic techniques. However, little is known about local kinematics, particularly for the reperfused regions after ischemic events. We report a novel imaging modality, which extracts local and global kinematic parameters from videos of in situ beating hearts, displaying live video cardiograms of the contraction events. A custom algorithm tracked the movement of a video marker positioned ad hoc onto a selected area and analyzed, during the entire recording, the contraction trajectory, displacement, velocity, acceleration, kinetic energy and force. Moreover, global epicardial velocity and vorticity were analyzed by means of Particle Image Velocimetry tool. We validated our new technique by i) computational modeling of cardiac ischemia, ii) video recordings of ischemic/reperfused rat hearts, iii) videos of beating human hearts before and after coronary artery bypass graft, and iv) local Frank-Starling effect. In rats, we observed a decrement of kinematic parameters during acute ischemia and a significant increment in the same region after reperfusion. We detected similar behavior in operated patients. This modality adds important functional values on cardiac outcomes and supports the intervention in a contact-free and non-invasive mode. Moreover, it does not require particular operator-dependent skills.
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Affiliation(s)
- Lorenzo Fassina
- Dipartimento di Ingegneria Industriale e dell’Informazione, Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
- Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Giacomo Rozzi
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
- Dipartimento di Cardiochirurgia, Università degli Studi di Verona, Ospedale Borgo Trento, P.le Stefani 1, 37126 Verona, Italy
| | - Stefano Rossi
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, INAIL-exISPESL, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
| | - Simone Scacchi
- Dipartimento di Matematica, Università degli Studi di Milano, Via Saldini 50, 20133 Milano, Italy
| | - Maricla Galetti
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, INAIL-exISPESL, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
| | - Francesco Paolo Lo Muzio
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
| | - Fabrizio Del Bianco
- Dipartimento di Ingegneria Industriale e dell’Informazione, Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
- Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Piero Colli Franzone
- Dipartimento di Matematica, Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Giuseppe Petrilli
- Dipartimento di Cardiochirurgia, Università degli Studi di Verona, Ospedale Borgo Trento, P.le Stefani 1, 37126 Verona, Italy
| | - Giuseppe Faggian
- Dipartimento di Cardiochirurgia, Università degli Studi di Verona, Ospedale Borgo Trento, P.le Stefani 1, 37126 Verona, Italy
| | - Michele Miragoli
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, INAIL-exISPESL, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
- Humanitas Clinical and Research Center, Via Manzoni 56, 20090 Rozzano, Italy
- Institute of Genetic and Biomedical Research, National Research Council, Via Manzoni 56, 20090 Rozzano, Italy
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30
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Fassina L, Rozzi G, Rossi S, Scacchi S, Galetti M, Lo Muzio FP, Del Bianco F, Colli Franzone P, Petrilli G, Faggian G, Miragoli M. Cardiac kinematic parameters computed from video of in situ beating heart. Sci Rep 2017; 7:46143. [PMID: 28397830 PMCID: PMC5387404 DOI: 10.1038/srep46143] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 10/11/2016] [Accepted: 03/13/2017] [Indexed: 12/21/2022] Open
Abstract
Mechanical function of the heart during open-chest cardiac surgery is exclusively monitored by echocardiographic techniques. However, little is known about local kinematics, particularly for the reperfused regions after ischemic events. We report a novel imaging modality, which extracts local and global kinematic parameters from videos of in situ beating hearts, displaying live video cardiograms of the contraction events. A custom algorithm tracked the movement of a video marker positioned ad hoc onto a selected area and analyzed, during the entire recording, the contraction trajectory, displacement, velocity, acceleration, kinetic energy and force. Moreover, global epicardial velocity and vorticity were analyzed by means of Particle Image Velocimetry tool. We validated our new technique by i) computational modeling of cardiac ischemia, ii) video recordings of ischemic/reperfused rat hearts, iii) videos of beating human hearts before and after coronary artery bypass graft, and iv) local Frank-Starling effect. In rats, we observed a decrement of kinematic parameters during acute ischemia and a significant increment in the same region after reperfusion. We detected similar behavior in operated patients. This modality adds important functional values on cardiac outcomes and supports the intervention in a contact-free and non-invasive mode. Moreover, it does not require particular operator-dependent skills.
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Affiliation(s)
- Lorenzo Fassina
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy.,Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Giacomo Rozzi
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy.,Dipartimento di Cardiochirurgia, Università degli Studi di Verona, Ospedale Borgo Trento, P.le Stefani 1, 37126 Verona, Italy
| | - Stefano Rossi
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy.,CERT, Centro di Eccellenza per la Ricerca Tossicologica, INAIL-exISPESL, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
| | - Simone Scacchi
- Dipartimento di Matematica, Università degli Studi di Milano, Via Saldini 50, 20133 Milano, Italy
| | - Maricla Galetti
- CERT, Centro di Eccellenza per la Ricerca Tossicologica, INAIL-exISPESL, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
| | - Francesco Paolo Lo Muzio
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy
| | - Fabrizio Del Bianco
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy.,Centre for Health Technologies (C.H.T.), Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Piero Colli Franzone
- Dipartimento di Matematica, Università degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Giuseppe Petrilli
- Dipartimento di Cardiochirurgia, Università degli Studi di Verona, Ospedale Borgo Trento, P.le Stefani 1, 37126 Verona, Italy
| | - Giuseppe Faggian
- Dipartimento di Cardiochirurgia, Università degli Studi di Verona, Ospedale Borgo Trento, P.le Stefani 1, 37126 Verona, Italy
| | - Michele Miragoli
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy.,CERT, Centro di Eccellenza per la Ricerca Tossicologica, INAIL-exISPESL, Università degli Studi di Parma, Via Gramsci 14, 43124 Parma, Italy.,Humanitas Clinical and Research Center, Via Manzoni 56, 20090 Rozzano, Italy.,Institute of Genetic and Biomedical Research, National Research Council, Via Manzoni 56, 20090 Rozzano, Italy
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31
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Bui TTH, Belli M, Fassina L, Vigone G, Merico V, Garagna S, Zuccotti M. Cytoplasmic movement profiles of mouse surrounding nucleolus and not-surrounding nucleolus antral oocytes during meiotic resumption. Mol Reprod Dev 2017; 84:356-362. [PMID: 28233368 DOI: 10.1002/mrd.22788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 07/08/2016] [Accepted: 02/16/2017] [Indexed: 01/28/2023]
Abstract
Full-grown mouse antral oocytes are classified as surrounding nucleolus (SN) or not-surrounding nucleolus (NSN), depending on the respective presence or absence of a ring of Hoechst-positive chromatin surrounding the nucleolus. In culture, both types of oocytes resume meiosis and reach the metaphase II (MII) stage, but following insemination, NSN oocytes arrest at the two-cell stage whereas SN oocytes may develop to term. By coupling time-lapse bright-field microscopy with image analysis based on particle image velocimetry, we provide the first systematic measure of the changes to the cytoplasmic movement velocity (CMV) occurring during the germinal vesicle-to-MII (GV-to-MII) transition of these two types of oocytes. Compared to SN oocytes, NSN oocytes display a delayed GV-to-MII transition, which can be mostly explained by retarded germinal vesicle break down and first polar body extrusion. SN and NSN oocytes also exhibit significantly different CMV profiles at four main time-lapse intervals, although this difference was not predictive of SN or NSN oocyte origin because of the high variability in CMV. When CMV profile was analyzed through a trained artificial neural network, however, each single SN or NSN oocyte was blindly identified with a probability of 92.2% and 88.7%, respectively. Thus, the CMV profile recorded during meiotic resumption may be exploited as a cytological signature for the non-invasive assessment of the oocyte developmental potential, and could be informative for the analysis of the GV-to-MII transition of oocytes of other species.
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Affiliation(s)
- Thi Thu Hien Bui
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Martina Belli
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Dipartimento di Ingegneria Industriale e dell'Informazione, University of Pavia, Pavia, Italy.,Centre for Health Technologies (C.H.T.), University of Pavia, Pavia, Italy
| | - Giulia Vigone
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Valeria Merico
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy
| | - Silvia Garagna
- Laboratorio di Biologia dello Sviluppo, Dipartimento di Biologia e Biotecnologie "Lazzaro Spallanzani", University of Pavia, Pavia, Italy.,Centre for Health Technologies (C.H.T.), University of Pavia, Pavia, Italy
| | - Maurizio Zuccotti
- Dipartimento di Medicina e Chirurgia, University of Parma, Parma, Italy
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32
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Pasi F, Fassina L, Mognaschi ME, Lupo G, Corbella F, Nano R, Capelli E. Pulsed Electromagnetic Field with Temozolomide Can Elicit an Epigenetic Pro-apoptotic Effect on Glioblastoma T98G Cells. Anticancer Res 2017; 36:5821-5826. [PMID: 27793904 DOI: 10.21873/anticanres.11166] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/12/2016] [Indexed: 11/10/2022]
Abstract
Treatment with pulsed electromagnetic fields (PEMFs) is emerging as an interesting therapeutic option for patients with cancer. The literature has demonstrated that low-frequency/low-energy electromagnetic fields do not cause predictable effects on DNA; however, they can epigenetically act on gene expression. The aim of the present work was to study a possible epigenetic effect of a PEMF, mediated by miRNAs, on a human glioblastoma cell line (T98G). We tested a PEMF (maximum magnetic induction, 2 mT; frequency, 75 Hz) that has been demonstrated to induce autophagy in glioblastoma cells. In particular, we studied the effect of PEMF on the expression of genes involved in cancer progression and a promising synergistic effect with temozolomide, a frequently used drug to treat glioblastoma multiforme. We found that electromagnetic stimulation in combination with temozolomide can elicit an epigenetic pro-apoptotic effect in the chemo- and radioresistant T98G glioblastoma cell line.
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Affiliation(s)
- Francesca Pasi
- Radiation Oncology Unit, Hospital San Matteo Foundation, Pavia, Italy.,Laboratory of Neuro-Radio-Experimental Biology, Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy.,Centre for Health Technologies, University of Pavia, Pavia, Italy
| | - Maria Evelina Mognaschi
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Giuseppe Lupo
- Centre for Health Technologies, University of Pavia, Pavia, Italy.,Laboratory of Immunology and Genetic Analysis, Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy
| | - Franco Corbella
- Radiation Oncology Unit, Hospital San Matteo Foundation, Pavia, Italy
| | - Rosanna Nano
- Laboratory of Neuro-Radio-Experimental Biology, Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Enrica Capelli
- Centre for Health Technologies, University of Pavia, Pavia, Italy .,Laboratory of Immunology and Genetic Analysis, Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy
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33
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Cornacchione M, Pellegrini M, Fassina L, Mognaschi ME, Di Siena S, Gimmelli R, Ambrosino P, Soldovieri MV, Taglialatela M, Gianfrilli D, Isidori AM, Lenzi A, Naro F. β-Adrenergic response is counteracted by extremely-low-frequency pulsed electromagnetic fields in beating cardiomyocytes. J Mol Cell Cardiol 2016; 98:146-58. [DOI: 10.1016/j.yjmcc.2016.07.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 07/08/2016] [Indexed: 12/18/2022]
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34
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Del Bianco F, Franzone PC, Scacchi S, Fassina L. Simulating the effects of growth and fiber dispersion on the electromechanical response of a cardiac ventricular wedge affected from concentric hypertrophy. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2016:5579-5582. [PMID: 28269519 DOI: 10.1109/embc.2016.7591991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this paper, we analyze the epicardial electromechanical response of an in silico cardiac ventricular wedge under both healthy and concentric hypertrophic conditions. This is achieved by taking into account the growth of the wedge thickness and the fiber dispersion that may follow. The electromechanical response is described in terms of some macroscopic measures, i.e. the action potential duration, the conduction velocity, the contractility and the contraction force. Our results suggest that growth reduces the action potential duration and conduction velocity, whilst it increases the contractility and contraction force, yielding an overall negative effect. In presence of fiber dispersion, the action potential duration and conduction velocity are not affected further, whilst the effect on the contractility and contraction force is enhanced.
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35
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Marfia G, Navone SE, Hadi LA, Paroni M, Berno V, Beretta M, Gualtierotti R, Ingegnoli F, Levi V, Miozzo M, Geginat J, Fassina L, Rampini P, Tremolada C, Riboni L, Campanella R. The Adipose Mesenchymal Stem Cell Secretome Inhibits Inflammatory Responses of Microglia: Evidence for an Involvement of Sphingosine-1-Phosphate Signalling. Stem Cells Dev 2016; 25:1095-107. [DOI: 10.1089/scd.2015.0268] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Giovanni Marfia
- Laboratory of Experimental Neurosurgery and Cell Therapy, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Stefania Elena Navone
- Laboratory of Experimental Neurosurgery and Cell Therapy, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Loubna Abdel Hadi
- Department of Medical Biotechnology and Translational Medicine, LITA-Segrate, University of Milan, Milan, Italy
| | - Moira Paroni
- Istituto Nazionale di Genetica Molecolare “Romeo ed Enrica Invernizzi,” Milan, Italy
| | - Valeria Berno
- Istituto Nazionale di Genetica Molecolare “Romeo ed Enrica Invernizzi,” Milan, Italy
| | - Matteo Beretta
- Laboratory of Experimental Neurosurgery and Cell Therapy, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | | | | | - Vincenzo Levi
- Laboratory of Experimental Neurosurgery and Cell Therapy, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Monica Miozzo
- Division of Pathology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Jens Geginat
- Istituto Nazionale di Genetica Molecolare “Romeo ed Enrica Invernizzi,” Milan, Italy
| | - Lorenzo Fassina
- Department of Health Sciences and Industrial and Information Engineering, University of Pavia, Pavia, Italy
| | - Paolo Rampini
- Laboratory of Experimental Neurosurgery and Cell Therapy, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | | | - Laura Riboni
- Department of Medical Biotechnology and Translational Medicine, LITA-Segrate, University of Milan, Milan, Italy
| | - Rolando Campanella
- Laboratory of Experimental Neurosurgery and Cell Therapy, Neurosurgery Unit, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
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36
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Patrucco A, Cristofaro F, Simionati M, Zoccola M, Bruni G, Fassina L, Visai L, Magenes G, Mossotti R, Montarsolo A, Tonin C. Wool fibril sponges with perspective biomedical applications. Materials Science and Engineering: C 2016; 61:42-50. [DOI: 10.1016/j.msec.2015.11.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 11/17/2015] [Accepted: 11/30/2015] [Indexed: 12/13/2022]
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Falone S, Marchesi N, Osera C, Fassina L, Comincini S, Amadio M, Pascale A. Pulsed electromagnetic field (PEMF) prevents pro-oxidant effects of H2O2 in SK-N-BE(2) human neuroblastoma cells. Int J Radiat Biol 2016; 92:281-6. [PMID: 26940444 DOI: 10.3109/09553002.2016.1150619] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Purpose The redox milieu, together with reactive oxygen species (ROS) accumulation, may play a role in mediating some biological effects of extremely-low-frequency electromagnetic fields (ELF-EMF). Some of us have recently reported that a pulsed EMF (PEMF) improves the antioxidant response of a drug-sensitive human neuroblastoma SH-SY5Y cell line to pro-oxidants. Since drug resistance may affect cell sensitivity to redox-based treatments, we wanted to verify whether drug-resistant human neuroblastoma SK-N-BE(2) cells respond to a PEMF in a similar fashion. Materials and methods SK-N-BE(2) cells were exposed to repeated 2 mT, 75 Hz PEMF (15 min each, repeated 3 times over 5 days), and ROS production, Mn-dependent superoxide dismutase (MnSOD)-based antioxidant protection and viability were assessed after 10 min or 30 min 1 mM hydrogen peroxide. Sham controls were kept at the same time in identical cell culture incubators. Results The PEMF increased the MnSOD-based antioxidant protection and reduced the ROS production in response to a pro-oxidant challenge. Conclusions Our work might lay foundation for the development of non-invasive PEMF-based approaches aimed at elevating endogenous antioxidant properties in cellular or tissue models.
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Affiliation(s)
- Stefano Falone
- a Department of Life, Health and Environmental Sciences , University of L'Aquila , L'Aquila, Italy
| | - Nicoletta Marchesi
- b Department of Drug Sciences , Section of Pharmacology, University of Pavia, Pavia, Italy
| | - Cecilia Osera
- b Department of Drug Sciences , Section of Pharmacology, University of Pavia, Pavia, Italy
| | - Lorenzo Fassina
- c Department of Electrical , Computer and Biomedical Engineering, University of Pavia, Pavia, Italy ;,d Centre for Health Technologies (C.H.T.), University of Pavia, Pavia, Italy
| | - Sergio Comincini
- e Department of Biology and Biotechnology , University of Pavia , Pavia , Italy
| | - Marialaura Amadio
- b Department of Drug Sciences , Section of Pharmacology, University of Pavia, Pavia, Italy
| | - Alessia Pascale
- b Department of Drug Sciences , Section of Pharmacology, University of Pavia, Pavia, Italy
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Del Bianco F, Colli Franzone P, Scacchi S, Fassina L. Modelling the effect of thickness on the electromechanical properties of in vitro cardiac cultures: A simulation study. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:29-33. [PMID: 26736193 DOI: 10.1109/embc.2015.7318293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nowadays, in vitro cardiac cultures offer a valid tool to study the bioelectrical activity and the biomechanics of the heart tissue. Modelling their properties could be helpful for researchers involved in this field. In this paper, we develop a three-dimensional electromechanical model to study how thickness affects the bioelectrical and biomechanical performances of an in vitro culture made of ventricular cells. In particular, by our in silico simulations we want to verify if thickness variations can be a key factor in modifying the response of the whole culture when this one is grown to become a cardiac patch. Therefore, for this parameter we choose three increasing values while keeping a fiber architecture among layers that is similar to the one of the in vivo heart but it is randomly stated at the beginning of each simulation. We prove that, independently from the selected architectures, the more thickness increases the more mechanical improvements are attained, but the more electrical problems may arise too.
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Del Bianco F, Colli Franzone P, Scacchi S, Fassina L. In silico modelling and analysis of the electrical and mechanical properties of in vitro cardiac cultures with different fiber architectures. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:38-42. [PMID: 26736195 DOI: 10.1109/embc.2015.7318295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Today, in vitro cardiac cultures are widely exploited to investigate several aspects of the electromechanical behavior of the cardiac tissue. Thus, new forecasts may derive from modelling their properties. In particular, in this paper, we focus on the fiber architecture of cultures, i.e. on the way cellular sarcomeres are locally oriented, when they are designed to be cardiac patches. We employ a three-dimensional model to simulate the bioelectrical activity and the biomechanics of a multilayered culture made of ventricular cells and with four possible architectures consisting of: i) random fibers in all cells; ii) randomly rotating fibers among layers; iii) structurally rotating fibers from the bottom layer to the top one; iv) parallel fibers among layers. Our results suggest that the best configuration for a patch may be the architecture with structurally rotating fibers, which is the one that most approaches the anisotropic structure of the in vivo heart, thanks to its better electrical and mechanical performances.
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Meraviglia V, Wen J, Piacentini L, Campostrini G, Wang C, Florio MC, Azzimato V, Fassina L, Langes M, Wong J, Miragoli M, Gaetano C, Pompilio G, Barbuti A, DiFrancesco D, Mascalzoni D, Pramstaller PP, Colombo GI, Chen HSV, Rossini A. Higher cardiogenic potential of iPSCs derived from cardiac versus skin stromal cells. Front Biosci (Landmark Ed) 2016; 21:719-43. [PMID: 26709802 DOI: 10.2741/4417] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Prior studies have demonstrated that founder cell type could influence induced pluripotent stem cells (iPSCs) molecular and developmental properties at early passages after establishing their pluripotent state. Herein, we evaluated the persistence of a functional memory related to the tissue of origin in iPSCs from syngeneic cardiac (CStC) vs skin stromal cells (SStCs). We found that, at passages greater than 15, iPSCs from cardiac stromal cells (C-iPSCs) produced a higher number of beating embryoid bodies than iPSCs from skin stromal cells (S-iPSCs). Flow cytometry analysis revealed that dissected beating areas from C-iPSCs exhibited more Troponin-T positive cells compared to S-iPSCs. Beating areas derived from C-iPSCs displayed higher expression of cardiac markers, more hyperpolarized diastolic potentials, larger action potential amplitude and higher contractility than beaters from skin. Also, different microRNA subsets were differentially modulated in CStCs vs SStCs during the reprogramming process, potentially accounting for the higher cardiogenic potentials of C-iPSCs vs S-iPSCs. Therefore, the present work supports the existence of a founder organ memory in iPSCs obtained from the stromal component of the origin tissue.
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Affiliation(s)
- Viviana Meraviglia
- Laboratory of Vascular Biology and Regenerative Medicine Centro Cardiologico Monzino IRCCS, Milano, 20138 Italy
| | - Jianyan Wen
- Del E. Webb Center for Neuroscience, Aging & Stem Cell Research, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California 92037, USA
| | - Luca Piacentini
- aboratory of Immunology and Functional Genomics, Centro Cardiologico Monzino IRCCS, Milano, 20138 Italy
| | - Giulia Campostrini
- The PaceLab, Department of Biosciences, University of Milano, Milano, 20133 Italy
| | - Cheng Wang
- Del E. Webb Center for Neuroscience, Aging and Stem Cell Research, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California 92037, USA
| | - Maria Cristina Florio
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC) (affiliated institute of the University of Lübeck), Bolzano, 39100 Italy
| | - Valerio Azzimato
- Department of Pharmacological and Biomolecular Sciences, University of Milano, Milano, 20133 Italy
| | - Lorenzo Fassina
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, 27100 Italy
| | - Martin Langes
- Laboratorio Specialistico di Ematologia, Ospedale Centrale di Bolzano, Azienda Sanitaria dell'Alto Adige, Bolzano, 39100 Italy
| | - Johnson Wong
- Del E. Webb Center for Neuroscience, Aging and Stem Cell Research, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California 92037, USA
| | - Michele Miragoli
- CERT, Center of Excellence for Toxicological Research, INAIL, ex ISPESL, University of Parma, Parma, 43125 Italy
| | - Carlo Gaetano
- Division of Cardiovascular Epigenetics, Department of Cardiology, Goethe University, Frankfurt am Main, 60590 Germany
| | - Giulio Pompilio
- Department of Clinical Sciences and Community Health, University of Milano, Milano, 20122 Italy
| | - Andrea Barbuti
- Centro Interuniversitario di Medicina Molecolare e Biofisica Applicata (CIMMBA), University of Milano, Milano, 20133 Italy
| | - Dario DiFrancesco
- The PaceLab, Department of Biosciences, University of Milano, Milano, 20133 Italy
| | - Deborah Mascalzoni
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC) (affiliated institute of the University of Lübeck), Bolzano, 39100 Italy
| | - Peter P Pramstaller
- Center for Biomedicine, European Academy Bozen/Bolzano (EURAC) (affiliated institute of the University of Lübeck), Bolzano, 39100 Italy
| | - Gualtiero I Colombo
- Laboratory of Immunology and Functional Genomics, Centro Cardiologico Monzino IRCCS, Milano, 20138 Italy
| | - Huei-Sheng Vincent Chen
- Departments of Medicine/Cardiology, University of California-San Diego (UCSD), La Jolla, California 92037, USA
| | - Alessandra Rossini
- Department of Clinical Sciences and Community Health, University of Milano, Milano, 20122 Italy,
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Rozzi G, Ranieri F, Rossi S, Buccarello A, Fassina L, Macchi E, Miragoli M. Novel evaluation of cardiac kinematics/dynamics parameters for in-situ heart by a high-speed bright-field video mapping validated by epicardial multiple lead recording. Vascul Pharmacol 2015. [DOI: 10.1016/j.vph.2015.11.070] [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: 11/16/2022]
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Meraviglia V, Wen J, Piacentini L, Campostrini G, Wang C, Florio M, Azzimato V, Fassina L, Langes M, Wong J, Miragoli M, Gaetano C, Pompilio G, Barbuti A, DiFrancesco D, Mascalzoni D, Pramstaller P, Colombo G, Chen H, Rossini A. High cardiac differentiation properties are evident in induced pluripotent stem cells obtained from atrial mesenchymal cells. Vascul Pharmacol 2015. [DOI: 10.1016/j.vph.2015.11.069] [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: 11/15/2022]
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Isidori AM, Cornacchione M, Barbagallo F, Di Grazia A, Barrios F, Fassina L, Monaco L, Giannetta E, Gianfrilli D, Garofalo S, Zhang X, Chen X, Xiang YK, Lenzi A, Pellegrini M, Naro F. Inhibition of type 5 phosphodiesterase counteracts β2-adrenergic signalling in beating cardiomyocytes. Cardiovasc Res 2015; 106:408-20. [PMID: 25852085 DOI: 10.1093/cvr/cvv123] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 03/20/2015] [Indexed: 12/31/2022] Open
Abstract
AIMS Compartmentalization of cAMP and PKA activity in cardiac muscle cells plays a key role in maintaining basal and enhanced contractility stimulated by sympathetic nerve activity. In cardiomyocytes, activation of adrenergic receptor increases cAMP production, which is countered by the hydrolytic activity of selective phosphodiesterases (PDEs). The intracellular regional dynamics of cAMP production and hydrolysis modulate downstream signals resulting in different biological responses. The interplay between beta receptors (βARs) signalling and phosphodiesterase 5 (PDE5) activity remains to be addressed. METHODS AND RESULTS Using combined strategies with pharmacological inhibitors and genetic deletion of PDEs and βAR isoforms, we revealed a specific pool of cAMP that is under dual regulation by PDE2 and, indirectly, PDE5 activity. Inhibition of PDE5 with sildenafil produces a cGMP-dependent activation of PDE2 that attenuates cAMP generation induced by βAR agonists, with concomitant modulation of stimulated contraction rate and calcium transients. PDE2 haploinsufficiency abolished the effects of sildenafil. The negative chronotropic effect of PDE5 inhibition through PDE2 activation was also observed in sinoatrial node tissue from adult mice. PDE5 inhibition selectively lowered contraction rate stimulated by β2AR, but not β1AR activation, supporting a compartmentalization of the cGMP-modulated pool of cAMP. CONCLUSION These data identify a new effect of PDE5 inhibitors on the modulation of cardiomyocyte response to adrenergic stimulation via PDE5-PDE2-mediated cross-talk.
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Affiliation(s)
- Andrea M Isidori
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Marisa Cornacchione
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Federica Barbagallo
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Antonio Di Grazia
- Department of Anatomical, Histological, Forensic, and Orthopaedic Sciences, Sapienza University, Rome, Italy
| | - Florencia Barrios
- Department of Anatomical, Histological, Forensic, and Orthopaedic Sciences, Sapienza University, Rome, Italy
| | - Lorenzo Fassina
- Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy
| | - Lucia Monaco
- Department of Physiology and Pharmacology, Sapienza University of Rome, Rome, Italy
| | - Elisa Giannetta
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Daniele Gianfrilli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Silvio Garofalo
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Xiaoxiao Zhang
- Department of Physiology, Temple University, Philadelphia, PA, USA
| | - Xiongwen Chen
- Department of Physiology, Temple University, Philadelphia, PA, USA
| | - Yang K Xiang
- Department of Pharmacology, University of California, Davis, CA, USA
| | - Andrea Lenzi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Manuela Pellegrini
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Fabio Naro
- Department of Anatomical, Histological, Forensic, and Orthopaedic Sciences, Sapienza University, Rome, Italy
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Osera C, Amadio M, Falone S, Fassina L, Magenes G, Amicarelli F, Ricevuti G, Govoni S, Pascale A. Pre-exposure of neuroblastoma cell line to pulsed electromagnetic field prevents H2 O2 -induced ROS production by increasing MnSOD activity. Bioelectromagnetics 2015; 36:219-32. [PMID: 25708841 DOI: 10.1002/bem.21900] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [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: 07/31/2014] [Accepted: 01/16/2015] [Indexed: 12/14/2022]
Abstract
Electromagnetic fields (EMFs) have been linked to increased risk of cancers and neurodegenerative diseases; however, EMFs can also elicit positive effects on biological systems, and redox status seems crucially involved in EMF biological effects. This study aimed to assess whether a short and repeated pulsed EMF (PEMF) could trigger adaptive responses against an oxidative insult in a neuronal cellular model. We found that a 40 min overall (four times a week, 10 min each) pre-exposure to PEMF did not affect major physiological parameters and led to a significant increase of Mn-dependent superoxide dismutase activity in the human neuroblastoma SH-SY5Y cell line. In addition, we found PEMF-pre-exposed cells exhibited decreased reactive oxygen species production following a 30 min H2 O2 challenge, with respect to non pre-exposed cells. Our findings might provide new insights on the role played by short and repeated PEMF stimulations in the enhancement of cellular defenses against oxidative insults. Although studies in normal neuronal cells would be useful to further confirm our hypothesis, we suggest that specific PEMF treatments may have potential biological repercussions in diseases where oxidative stress is implicated.
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Affiliation(s)
- Cecilia Osera
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy
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45
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Zuccotti M, Merico V, Rebuzzini P, Belli M, Vigone G, Mulas F, Fassina L, Wruck W, Adjaye J, Bellazzi R, Garagna S. 3D culture of ovarian follicles: a system towards their engineering? Int J Dev Biol 2015; 59:211-6. [DOI: 10.1387/ijdb.150172mz] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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Marchesi N, Osera C, Fassina L, Amadio M, Angeletti F, Morini M, Magenes G, Venturini L, Biggiogera M, Ricevuti G, Govoni S, Caorsi S, Pascale A, Comincini S. Autophagy is modulated in human neuroblastoma cells through direct exposition to low frequency electromagnetic fields. J Cell Physiol 2014; 229:1776-86. [PMID: 24676932 DOI: 10.1002/jcp.24631] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 03/24/2014] [Indexed: 02/06/2023]
Abstract
In neurogenerative diseases, comprising Alzheimer's (AD), functional alteration in autophagy is considered one of the pathological hallmarks and a promising therapeutic target. Epidemiological investigations on the possible causes undergoing these diseases have suggested that electromagnetic fields (EMF) exposition can contribute to their etiology. On the other hand, EMF have therapeutic implications in reactivating neuronal functionality. To partly clarify this dualism, the effect of low-frequency EMF (LF-EMF) on the modulation of autophagy was investigated in human neuroblastoma SH-SY5Y cells, which were also subsequently exposed to Aβ peptides, key players in AD. The results primarily point that LF-EMF induce a significant reduction of microRNA 30a (miR-30a) expression with a concomitant increase of Beclin1 transcript (BECN1) and its corresponding protein. Furthermore, LF-EMF counteract the induced miR-30a up-regulation in the same cells transfected with miR-30a mimic precursor molecules and, on the other side, rescue Beclin1 expression after BECN1 siRNA treatment. The expression of autophagy-related markers (ATG7 and LC3B-II) as well as the dynamics of autophagosome formation were also visualized after LF-EMF exposition. Finally, different protocols of repeated LF-EMF treatments were assayed to contrast the effects of Aβ peptides in vitro administration. Overall, this research demonstrates, for the first time, that specific LF-EMF treatments can modulate in vitro the expression of a microRNA sequence, which in turn affects autophagy via Beclin1 expression. Taking into account the pivotal role of autophagy in the clearance of protein aggregates within the cells, our results indicate a potential cytoprotective effect exerted by LF-EMF in neurodegenerative diseases such as AD. J. Cell. Physiol. 229: 1776-1786, 2014. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- Nicoletta Marchesi
- Department of Drug Sciences, Section of Pharmacology, University of Pavia, Pavia, Italy
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Mognaschi ME, Di Barba P, Magenes G, Lenzi A, Naro F, Fassina L. Field models and numerical dosimetry inside an extremely-low-frequency electromagnetic bioreactor: the theoretical link between the electromagnetically induced mechanical forces and the biological mechanisms of the cell tensegrity. Springerplus 2014; 3:473. [PMID: 25202652 PMCID: PMC4156577 DOI: 10.1186/2193-1801-3-473] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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: 06/19/2014] [Accepted: 08/09/2014] [Indexed: 02/07/2023]
Abstract
We have implemented field models and performed a detailed numerical dosimetry inside our extremely-low-frequency electromagnetic bioreactor which has been successfully used in in vitro Biotechnology and Tissue Engineering researches. The numerical dosimetry permitted to map the magnetic induction field (maximum module equal to about 3.3 mT) and to discuss its biological effects in terms of induced electric currents and induced mechanical forces (compression and traction). So, in the frame of the tensegrity-mechanotransduction theory of Ingber, the study of these electromagnetically induced mechanical forces could be, in our opinion, a powerful tool to understand some effects of the electromagnetic stimulation whose mechanisms remain still elusive.
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Affiliation(s)
- Maria Evelina Mognaschi
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy
| | - Paolo Di Barba
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy
| | - Giovanni Magenes
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy ; Centro di Ingegneria Tissutale (C.I.T.), Università di Pavia, Pavia, Italy
| | - Andrea Lenzi
- Dipartimento di Medicina Sperimentale, Università "Sapienza", Rome, Italy
| | - Fabio Naro
- Dipartimento di Scienze Anatomiche, Istologiche, Medico-Legali e dell'Apparato Locomotore, Università "Sapienza", Rome, Italy
| | - Lorenzo Fassina
- Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, Via Ferrata 1, Pavia, 27100 Italy ; Centro di Ingegneria Tissutale (C.I.T.), Università di Pavia, Pavia, Italy
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Omes C, Fassina L, Van Vlierberghe S, Magenes G, Dubruel P, Vaghi P, Reguzzoni M, Riva F. A case of successful interaction between cells derived from human ovarian follicular liquid and gelatin cryogel for biotech and medical applications. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2013:6240-3. [PMID: 24111166 DOI: 10.1109/embc.2013.6610979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Significant research efforts have been undertaken in the last decade to develop specific cell-based therapies and, in particular, adult multipotent mesenchymal stem cells (MSCs) hold great promise toward such regenerative strategies. Bio-materials have been widely used in reconstructive bone surgery to heal critical-size bone defects due to trauma, tumor resection, and tissue degeneration. In particular, gelatin cryogel scaffolds are promising new biomaterials owing to their biocompatibility. There is an increasing demand for MSC-based regenerative approaches in the musculoskeletal system. Combining stem cells with biomaterial scaffolds provides a promising strategy for tissue engineering. Our previous studies showed the possibility to obtain MSCs from the human ovarian follicular liquid (FL) that is usually wasted during in vitro fertilization (IVF). In this study, we tested the ability of these FL cells to grow on gelatin cryogel in comparison with MSCs derived from human bone marrow. Samples and controls were analyzed with confocal and scanning electron microscopes. Results demonstrated that FL cells could grow on the biomaterial not only on the top but also in the layers below till 60 µm of deepness. Data suggested that the observed cells were mesenchymal since positive for vimentin and CD-44, typical MSC markers. Successful growth of putative MSCs derived from follicular liquid on 3D gelatin cryogel opens potential developments in biotech and medical applications.
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Fassina L, Visai L, Magenes G, Schelfhout J, Bloise N, Riva F, Omes C, Avanzini MA, Cusella De Angelis MG, Benazzo F, Dierick M, Van Hoorebeke L, Dubruel P, Van Vlierberghe S. Ultrasound stimulus to enhance the bone regeneration capability of gelatin cryogels. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2013:846-9. [PMID: 24109820 DOI: 10.1109/embc.2013.6609633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In the present study, gelatin-based cryogels have been seeded with human SAOS-2 osteoblasts. In order to overcome the drawbacks associated with in vitro culture systems, such as limited diffusion and inhomogeneous cell-matrix distribution, this work describes the application of ultrasounds (average power, 149 mW; frequency, 1.5 MHz) to physically enhance the cell culture in vitro. The results indicate that the physical stimulation of cell-seeded gelatin-based cryogels upregulates the bone matrix production.
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50
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Fassina L, Di Grazia A, Naro F, Aguanno S, Cornacchione M, Cusella De Angelis MG, Sardi F, Magenes G. Effects of the hydrostatic pressure in in vitro beating cardiac syncytia in terms of kinematics (kinetic energy and beat frequency) and syncytia geometrical-functional classification. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2013:854-7. [PMID: 24109822 DOI: 10.1109/embc.2013.6609635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Many important observations and discoveries in heart physiology have been made possible using the isolated heart method of Langendorff, e.g. the discovery of the very famous Frank-Starling law of the heart. Nevertheless, the Langendorff's method has some limitations and disadvantages such as the probability of preconditioning and a high oxidative stress, leading to the deterioration of the contractile function. To avoid the preceding drawbacks associated to the use of a whole heart, we have alternatively used beating mouse cardiac syncytia cultured in vitro in order to assess the ergotropic and chronotropic effects of both increasing and decreasing hydrostatic pressures. To achieve the preceding aim, we have developed a method based on image processing analysis to evaluate the kinematics of that pressure-loaded beating syncytia starting from the video registration of their contraction movement. We have verified the Frank-Starling law of the heart in in vitro beating cardiac syncytia and we have obtained their geometrical-functional classification. The present method could be used in in vitro studies of beating cardiac patches, as alternative to the Langendorff's heart in biochemical, pharmacological, and physiology studies, and, especially, when the Langendorff's technique is inapplicable. Furthermore, the method could help, in heart tissue engineering and bioartificial heart researches, to "engineer the heart piece by piece".
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