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Zuccolini P, Barbieri R, Sbrana F, Picco C, Gavazzo P, Pusch M. IK Channel-Independent Effects of Clotrimazole and Senicapoc on Cancer Cells Viability and Migration. Int J Mol Sci 2023; 24:16285. [PMID: 38003471 PMCID: PMC10671816 DOI: 10.3390/ijms242216285] [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: 08/16/2023] [Revised: 11/10/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Many studies highlighted the importance of the IK channel for the proliferation and the migration of different types of cancer cells, showing how IK blockers could slow down cancer growth. Based on these data, we wanted to characterize the effects of IK blockers on melanoma metastatic cells and to understand if such effects were exclusively IK-dependent. For this purpose, we employed two different blockers, namely clotrimazole and senicapoc, and two cell lines: metastatic melanoma WM266-4 and pancreatic cancer Panc-1, which is reported to have little or no IK expression. Clotrimazole and senicapoc induced a decrease in viability and the migration of both WM266-4 and Panc-1 cells irrespective of IK expression levels. Patch-clamp experiments on WM266-4 cells revealed Ca2+-dependent, IK-like, clotrimazole- and senicapoc-sensitive currents, which could not be detected in Panc-1 cells. Neither clotrimazole nor senicapoc altered the intracellular Ca2+ concentration. These results suggest that the effects of IK blockers on cancer cells are not strictly dependent on a robust presence of the channel in the plasma membrane, but they might be due to off-target effects on other cellular targets or to the blockade of IK channels localized in intracellular organelles.
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Affiliation(s)
| | | | | | | | | | - Michael Pusch
- Biophysics Institute, National Research Council, 16149 Genova, Italy; (P.Z.); (R.B.); (F.S.); (C.P.); (P.G.)
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Gambardella C, Miroglio R, Trenti F, Guella G, Panevska A, Sbrana F, Grunder M, Garaventa F, Sepčić K. Assessing the toxicity of aegerolysin-based bioinsecticidal complexes using the sea urchin Paracentrotus lividus as model organism. Aquat Toxicol 2023; 264:106727. [PMID: 37866166 DOI: 10.1016/j.aquatox.2023.106727] [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] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/15/2023] [Accepted: 10/07/2023] [Indexed: 10/24/2023]
Abstract
The use of alternative solutions for pest management to replace pesticides in agriculture is of great interest. Proteinaceous complexes deriving from edible oyster mushrooms were recently proposed as environmentally friendly bioinsecticides. Such complexes, composed of ostreolysin A6 (OlyA6) and pleurotolysin B (PlyB), target invertebrate-specific membrane sphingolipids in insect's midgut, causing death through the formation of transmembrane pores. In this work, the potential impact of OlyA6/PlyB complexes was tested in the Mediterranean sea urchin Paracentrotus lividus, as an indicator of environmental quality. The ability of the fluorescently tagged OlyA6 to bind sea urchin gametes (sperm, eggs), the lipidome of sea urchin gametes, and the potential toxic effects and developmental anomalies caused by OlyA6/PlyB complexes on P. lividus early development (embryo, larvae) were investigated. The binding of the fluorescently tagged OlyA6 could be observed only in sea urchin eggs, which harbor OlyA6 sphingolipid membrane receptors, conversely to sperm. High protein concentrations affected sea urchin fertilization (>750 µg/L) and early development (> 375 µg/L in embryos; >100 µg/L in larvae), by causing toxicity and morphological anomalies in embryos and larvae. The main anomalies consisted in delayed embryos and incorrect migration of the primary mesenchyme cells that caused larval skeletal anomalies. The classification of these anomalies indicated a slight environmental impact of OlyA6/PlyB complexes at concentrations higher than 750 µg/L. Such impact should not persist in the marine environment, due to the reversible anomalies observed in sea urchin embryos and larvae that may promote defense strategies. However, before promoting the use of OlyA6/PlyB complexes as bio-pesticides at low concentrations, further studies on other marine coastal species are needed.
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Affiliation(s)
- Chiara Gambardella
- National Research Council-Institute for the Study of the Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Genoa, Italy.
| | - Roberta Miroglio
- National Research Council-Institute for the Study of the Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Genoa, Italy
| | - Francesco Trenti
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Trento, Italy
| | - Graziano Guella
- Bioorganic Chemistry Laboratory, Department of Physics, University of Trento, Trento, Italy
| | - Anastasija Panevska
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Francesca Sbrana
- National Research Council- Institute of Biophysics (CNR-IBF), Genoa, Italy
| | - Maja Grunder
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Francesca Garaventa
- National Research Council-Institute for the Study of the Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Genoa, Italy
| | - Kristina Sepčić
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Barsanti L, Birindelli L, Sbrana F, Lombardi G, Gualtieri P. Advanced Microscopy Techniques for Molecular Biophysics. Int J Mol Sci 2023; 24:9973. [PMID: 37373120 DOI: 10.3390/ijms24129973] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 05/31/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Though microscopy is most often intended as a technique for providing qualitative assessment of cellular and subcellular properties, when coupled with other instruments such as wavelength selectors, lasers, photoelectric devices and computers, it can perform a wide variety of quantitative measurements, which are demanding in establishing relationships between the properties and structures of biological material in all their spatial and temporal complexities. These combinations of instruments are a powerful approach to improve non-destructive investigations of cellular and subcellular properties (both physical and chemical) at a macromolecular scale resolution. Since many subcellular compartments in living cells are characterized by structurally organized molecules, this review deals with three advanced microscopy techniques well-suited for these kind of investigations, i.e., microspectrophotometry (MSP), super-resolution localization microscopy (SRLM) and holotomographic microscopy (HTM). These techniques can achieve an insight view into the role intracellular molecular organizations such as photoreceptive and photosynthetic structures and lipid bodies play in many cellular processes as well as their biophysical properties. Microspectrophotometry uses a set-up based on the combination of a wide-field microscope and a polychromator, which allows the measurement of spectroscopic features such as absorption spectra. Super resolution localization microscopy combines dedicated optics and sophisticated software algorithms to overcome the diffraction limit of light and allow the visualization of subcellular structures and dynamics in greater detail with respect to conventional optical microscopy. Holotomographic microscopy combines holography and tomography techniques into a single microscopy set-up, and allows 3D reconstruction by means of the phase separation of biomolecule condensates. This review is organized in sections, which for each technique describe some general aspects, a peculiar theoretical aspect, a specific experimental configuration and examples of applications (fish and algae photoreceptors, single labeled proteins and endocellular aggregates of lipids).
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Affiliation(s)
- Laura Barsanti
- Istituto di Biofisica, CNR, Via Moruzzi 1, 56124 Pisa, Italy
| | | | | | - Giovanni Lombardi
- Istituto di Scienza e Tecnologia dell'Informazione, CNR, Via Moruzzi 1, 56124 Pisa, Italy
| | - Paolo Gualtieri
- Istituto di Biofisica, CNR, Via Moruzzi 1, 56124 Pisa, Italy
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Costa E, Gambardella C, Miroglio R, Di Giannantonio M, Lavorano S, Minetti R, Sbrana F, Piazza V, Faimali M, Garaventa F. Nanoplastic uptake temporarily affects the pulsing behavior in ephyrae of the moon jellyfish Aurelia sp. Ecotoxicology 2023:10.1007/s10646-023-02669-0. [PMID: 37269410 DOI: 10.1007/s10646-023-02669-0] [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] [Accepted: 05/24/2023] [Indexed: 06/05/2023]
Abstract
The aim of this study is to investigate for the first time the uptake and ecotoxicological effects of nanoplastics (NPs) in a marine cnidarian. Ephyrae of the moon jellyfish Aurelia sp. of different ages (0 and 7 days old) were exposed to negatively charged polystyrene NPs for 24 h; then, the uptake was assessed through traditional and novel techniques, namely microscopy and three-dimensional (3D) holotomography. Immobility and behavioral responses (frequency of pulsations) of ephyrae were also investigated to clarify if NP toxicity differed along the first life stages. NP uptake was observed in ephyrae thanks to the 3D technique. Such internalization did not affect survival, but it temporarily impaired the pulsation mode only in 0 day old ephyrae. This may be ascribed to the negative charged NPs, contributing to jellyfish behavioral alteration. These findings promote 3D holotomography as a suitable tool to detect NPs in marine organisms. Moreover, this study recommends the use of cnidarians of different ages to better assess NP ecotoxicological effects in these organisms, key components of the marine food web.
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Affiliation(s)
- Elisa Costa
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy
| | - Chiara Gambardella
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy.
- National Biodiversity Future Center (NBFC) S.c.a.r.l., Piazza Marina 61 (c/o palazzo Steri), Palermo, Italy.
| | - Roberta Miroglio
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy
| | - Michela Di Giannantonio
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy
- Early PostDoc Mobility Grant - Swiss National Science Foundation, Bern, Switzerland
| | - Silvia Lavorano
- Costa Edutainment SpA - Acquario di Genova, Area Porto Antico, Ponte Spinola, 16128, Genova, Italy
| | - Roberta Minetti
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy
| | - Francesca Sbrana
- National Research Council (CNR) - Institute of Biophysics (IBF), Via De Marini 16, 16149, Genova, Italy
- Schaefer SEE srl, Via delle Genziane 96, 16148, Genova, Italy
| | - Veronica Piazza
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy
| | - Marco Faimali
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy
- National Biodiversity Future Center (NBFC) S.c.a.r.l., Piazza Marina 61 (c/o palazzo Steri), Palermo, Italy
| | - Francesca Garaventa
- National Research Council (CNR) - Institute for the Study of Anthropic Impacts and Sustainability in Marine Environment (IAS), Via De Marini 16, 16149, Genova, Italy
- National Biodiversity Future Center (NBFC) S.c.a.r.l., Piazza Marina 61 (c/o palazzo Steri), Palermo, Italy
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5
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Di Giannantonio M, Gambardella C, Miroglio R, Costa E, Sbrana F, Smerieri M, Carraro G, Utzeri R, Faimali M, Garaventa F. Ecotoxicity of Polyvinylidene Difluoride (PVDF) and Polylactic Acid (PLA) Microplastics in Marine Zooplankton. Toxics 2022; 10:toxics10080479. [PMID: 36006158 PMCID: PMC9416274 DOI: 10.3390/toxics10080479] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/11/2022] [Accepted: 08/13/2022] [Indexed: 05/09/2023]
Abstract
The aim of this study was to investigate the ecotoxicity of polyvinylidene difluoride (PVDF) and polylactic acid (PLA) microplastics (MPs) in two marine zooplankton: the crustacean Artemia franciscana and the cnidarian Aurelia sp. (common jellyfish). To achieve this goal, (i) MP uptake, (ii) immobility, and (iii) behavior (swimming speed, pulsation mode) of crustacean larval stages and jellyfish ephyrae exposed to MPs concentrations (1, 10, 100 mg/L) were assessed for 24 h. Using traditional and novel techniques, i.e., epifluorescence microscopy and 3D holotomography (HT), PVDF and PLA MPs were found in the digestive systems of the crustaceans and in the gelatinous tissue of jellyfish. Immobility was not affected in either organism, while a significant behavioral alteration in terms of pulsation mode was found in jellyfish after exposure to both PVDF and PLA MPs. Moreover, PLA MPs exposure in jellyfish induced a toxic effect (EC50: 77.43 mg/L) on the behavioral response. This study provides new insights into PLA and PVDF toxicity with the potential for a large impact on the marine ecosystem, since jellyfish play a key role in the marine food chain. However, further investigations incorporating additional species belonging to other trophic levels are paramount to better understand and clarify the impact of such polymers at micro scale in the marine environment. These findings suggest that although PVDF and PLA have been recently proposed as innovative and, in the case of PLA, biodegradable polymers, their effects on marine biota should not be underestimated.
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Affiliation(s)
- Michela Di Giannantonio
- Early PostDoc Mobility Grant—Swiss National Science Foundation, 3000 Bern, Switzerland
- Correspondence: (M.D.G.); (C.G.); Tel.: +39-0106476429 (C.G.)
| | - Chiara Gambardella
- Institute for the Study of the Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), National Research Council, Via de Marini 16, 16149 Genova, Italy
- Correspondence: (M.D.G.); (C.G.); Tel.: +39-0106476429 (C.G.)
| | - Roberta Miroglio
- Institute for the Study of the Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), National Research Council, Via de Marini 16, 16149 Genova, Italy
| | - Elisa Costa
- Institute for the Study of the Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), National Research Council, Via de Marini 16, 16149 Genova, Italy
| | - Francesca Sbrana
- Institute of Biophysics (CNR-IBF), National Research Council, Via de Marini 16, 16149 Genova, Italy
- Schaefer SEE srl, Via Luigi Einaudi 23, 45100 Rovigo, Italy
| | - Marco Smerieri
- Institute of Materials for Electronics and Magnetism (CNR-IMEM), National Research Council, Via Dodecaneso 33, 16149 Genova, Italy
| | - Giovanni Carraro
- Institute of Materials for Electronics and Magnetism (CNR-IMEM), National Research Council, Via Dodecaneso 33, 16149 Genova, Italy
| | - Roberto Utzeri
- Institute of Molecular Science and Technologies (CNR-SCITEC), National Research Council, Via de Marini 16, 16149 Genova, Italy
| | - Marco Faimali
- Institute for the Study of the Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), National Research Council, Via de Marini 16, 16149 Genova, Italy
| | - Francesca Garaventa
- Early PostDoc Mobility Grant—Swiss National Science Foundation, 3000 Bern, Switzerland
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Sampietro T, Sbrana F, Pino BD, Bigazzi F, Ripoli A, Marzullo P, Gimelli A. Coronary microcirculatory blood flow significantly increases upon acute and chronic cholesterol lowering. Evaluation by cadmium-zinc-telluride cardiac imaging stress test. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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7
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Sampietro T, Pino BD, Bigazzi F, Sbrana F, Ripoli A, Fontanelli E, Pianelli M, Luciani R, Lepri A, Calzetti G. Ocular microcirculation blood flow acutely increases upon cholesterol removal. The eyes mirror of the heart? Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Maisano D, Mimmi S, Dattilo V, Marino F, Gentile M, Vecchio E, Fiume G, Nisticò N, Aloisio A, de Santo MP, Desiderio G, Musolino V, Nucera S, Sbrana F, Andò S, Ferrero S, Morandi A, Bertoni F, Quinto I, Iaccino E. A novel phage display based platform for exosome diversity characterization. Nanoscale 2022; 14:2998-3003. [PMID: 35141731 DOI: 10.1039/d1nr06804k] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We present an innovative approach allowing the identification, isolation, and molecular characterization of disease-related exosomes based on their different antigenic reactivities. The designed strategy could be immediately translated into any disease in which exosomes are involved. The identification of specific markers and their subsequent association with exosome subtypes, together with the possibility to engineer target-guided exosome-like particles, could represent the key for the effective adoption of exosomes in clinical practice.
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Affiliation(s)
- Domenico Maisano
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | - Selena Mimmi
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | - Vincenzo Dattilo
- Genetics Units, IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Fabiola Marino
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | | | - Eleonora Vecchio
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | - Giuseppe Fiume
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | - Nancy Nisticò
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | - Annamaria Aloisio
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | | | - Giovanni Desiderio
- CNR/Nanotec, Physics Department, University of Calabria, Rende, CS, Italy
| | - Vincenzo Musolino
- IRC-FSH Department of Health Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | - Saverio Nucera
- IRC-FSH Department of Health Sciences, University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | | | | | - Simone Ferrero
- Division of Hematology, Department of Molecular Biotechnologies and Health Sciences, University of Torino, Turin, Italy
| | - Andrea Morandi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Francesco Bertoni
- IOR, Institute of Oncology Research, Faculty of Biomedical Sciences, USI, Bellinzona, Switzerland
| | - Ileana Quinto
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
| | - Enrico Iaccino
- Department of Experimental and Clinical Medicine, University "Magna Graecia of Catanzaro", Catanzaro, Italy.
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Pecori D, Della Siega P, Sozio E, Barbano E, Mazzoran L, Zanichelli A, Sbrana F, Federico I, Bassi F, Fabris M, Vendramin I, Sbrojavacca R, Tascini C. Icatibant in Severe Acute Respiratory Syndrome Coronavirus 2: a case description. J Investig Allergol Clin Immunol 2020; 31:451-452. [PMID: 33275101 DOI: 10.18176/jiaci.0659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- D Pecori
- SOC Malattie Infettive, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
| | - P Della Siega
- SOC Malattie Infettive, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
| | - E Sozio
- North-West District, Tuscany Health Care, Spedali Riuniti Livorno, Emergency Department, Livorno - Italy
| | - E Barbano
- Medicina D´Urgenza e Pronto Soccorso, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
| | - L Mazzoran
- Medicina D´Urgenza e Pronto Soccorso, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
| | - A Zanichelli
- U.O. Medicina Generale, ASST Fatebenefratelli Sacco, Ospedale "Luigi Sacco", Milano - Italy
| | - F Sbrana
- U.O. Lipoapheresis and Center for Inherited Dyslipidemias - Fondazione Toscana Gabriele Monasterio, Italy
| | - I Federico
- Medicina D´Urgenza e Pronto Soccorso, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
| | - F Bassi
- SOC Anestesia e Rianimazione 2, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
| | - M Fabris
- Institute of Clinical Pathology, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - I Vendramin
- Cardiothoracic Department; Division of Cardiac Surgery, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - R Sbrojavacca
- SOC Malattie Infettive, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
| | - C Tascini
- SOC Malattie Infettive, Azienda Sanitaria Universitaria Integrata di Udine, Udine - Italy
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Bigazzi F, Pino BD, Pavanello C, Sbrana F, Aquaro G, Napoli V, Palmieri C, Barison A, Calabresi L, Sampietro T. Familial LCAT deficiency and cardiovascular disease: The game is not over. A case of dramatic multivessel atherosclerosis. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sbrana F, Pino BD, Bigazzi F, Ripoli A, Volpi E, Lo Surdo G, Pianelli M, Luciani R, Biagni S, Sampietro T. A large italian cohort on PCSK9-inhibitors: A single center experience. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pianelli M, Luciani R, Sbrana F, Pino BD, Bigazzi F, Sampietro T. Vascular access in lipoprotein apheresis: Save the vein, save the life. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Salucci S, Battistelli M, Burattini S, Sbrana F, Falcieri E. Holotomographic microscopy: A new approach to detect apoptotic cell features. Microsc Res Tech 2020; 83:1464-1470. [PMID: 32681811 DOI: 10.1002/jemt.23539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 04/05/2020] [Revised: 05/31/2020] [Accepted: 06/09/2020] [Indexed: 12/12/2022]
Abstract
Holotomographic (HT) microscopy, combines two techniques, holography and tomography, and, in this way, it allows to quantitatively and noninvasively investigate cells and thin tissue slices, by obtaining three-dimensional (3D) images and by monitoring inner morphological changes. HT has indeed two significant advantages: it is label-free and low-energy light passes through the specimen with minimal perturbation. Using quantitative phase imaging with optical diffraction tomography, it can produce 3D images by measuring the refraction index (RI). Therefore, based on RI values, HT can provide structural and chemical cell information, such as dry mass values, morphological changes, or cellular membrane dynamics. In this study, suspended and adherent culture cells have been processed for HT analyses. Some of them have been treated with known apoptotic drugs or pro-oxidant agents and cell response has been investigated both by conventional microscopic approaches and by HT. The ultrastructural and fluorescence images have been compared to those obtained by HT and their congruence has been discussed, with particular attention to apoptotic cell death and on correlated plasma membrane changes. HT appears a valid approach to further characterize well-known apoptotic features such as cell blebbing, chromatin condensation, micronuclei, and apoptotic bodies. Taken together, our data demonstrate that HT appears suitable to highlight suspended or adherent cell behavior under different conditions. In particular, this technique appears an important new tool to distinguish healthy cells from the apoptotic ones, as well as to monitor outer and inner cell changes in a rapid way and with a noninvasive, label-free, approach.
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Affiliation(s)
- Sara Salucci
- Department of Biomolecular Sciences, Urbino University, Urbino, Italy
| | | | - Sabrina Burattini
- Department of Biomolecular Sciences, Urbino University, Urbino, Italy
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Costa E, Gambardella C, Piazza V, Vassalli M, Sbrana F, Lavorano S, Garaventa F, Faimali M. Microplastics ingestion in the ephyra stage of Aurelia sp. triggers acute and behavioral responses. Ecotoxicol Environ Saf 2020; 189:109983. [PMID: 31785944 DOI: 10.1016/j.ecoenv.2019.109983] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/13/2019] [Accepted: 11/15/2019] [Indexed: 05/24/2023]
Abstract
For the first time, we report a correspondence between microplastics (MP) ingestion and ecotoxicological effects in gelatinous zooplankton (Cnidarian jellyfish). The ephyra stage of the jellyfish Aurelia sp. was exposed to both environmental and high concentrations of fluorescent 1-4 μm polyethylene MP (0.01-10 mg/L). After 24 and 48 h, MP accumulation, acute (Immobility) and behavioral (Frequency pulsation) endpoints were investigated. MP were detected by confocal and tomographic investigations on gelatinous body and mouth, either attached on the surface or ingested. This interaction was responsible for impairing ephyrae survival and behavior at all tested concentrations after 24 h. Acute and behavioral effects were also related to mechanical disturbance, caused by MP, triggering a loss of radial symmetry. Contaminated ephyrae exposed to clean seawater showed full recovery after 72 h highlighting the organisms without the microspheres, attached on body jellyfish surface around the mouth and lappets. In conclusion, short-term exposure to MP affects ephyrae jellyfish health, impairing both their survival and behavior. Polyethylene MP temporarily affect both Immobility and Frequency of pulsation of Aurelia sp. jellyfish. This study provides a first step towards understanding and clarifying the potential impacts of MP contamination in gelatinous zooplankton.
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Affiliation(s)
- Elisa Costa
- National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Via de Marini 6, 16149, Genova, Italy.
| | - Chiara Gambardella
- National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Via de Marini 6, 16149, Genova, Italy.
| | - Veronica Piazza
- National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Via de Marini 6, 16149, Genova, Italy.
| | - Massimo Vassalli
- National Research Council, Institute of Biophysics (CNR-IBF), Via de Marini 6, 16149, Genova, Italy.
| | | | - Silvia Lavorano
- Costa Edutainment SpA - Acquario di Genova, Area Porto Antico, Ponte Spinola, 16128, Genoa, Italy.
| | - Francesca Garaventa
- National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Via de Marini 6, 16149, Genova, Italy.
| | - Marco Faimali
- National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Via de Marini 6, 16149, Genova, Italy.
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Bartolozzi A, Viti F, De Stefano S, Sbrana F, Petecchia L, Gavazzo P, Vassalli M. Development of label-free biophysical markers in osteogenic maturation. J Mech Behav Biomed Mater 2019; 103:103581. [PMID: 32090910 DOI: 10.1016/j.jmbbm.2019.103581] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 05/30/2019] [Revised: 11/29/2019] [Accepted: 12/03/2019] [Indexed: 12/23/2022]
Abstract
The spatial and temporal changes of morphological and mechanical properties of living cells reflect complex functionally-associated processes. Monitoring these modifications could provide a direct information on the cellular functional state. Here we present an integrated biophysical approach to the quantification of the morphological and mechanical phenotype of single cells along a maturation pathway. Specifically, quantitative phase microscopy and single cell biomechanical testing were applied to the characterization of the maturation of human foetal osteoblasts, demonstrating the ability to identify effective label-free biomarkers along this fundamental biological process.
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Affiliation(s)
- Alice Bartolozzi
- Institute of Biophysics, National Research Council of Italy, Genoa, Italy; Dipartimento di Ingegneria dell'Informazione, Università di Firenze, Florence, Italy
| | - Federica Viti
- Institute of Biophysics, National Research Council of Italy, Genoa, Italy.
| | - Silvia De Stefano
- Institute of Biophysics, National Research Council of Italy, Genoa, Italy
| | - Francesca Sbrana
- Institute of Biophysics, National Research Council of Italy, Genoa, Italy; Schaefer South-East Europe Srl, Rovigo, Italy
| | - Loredana Petecchia
- Institute of Biophysics, National Research Council of Italy, Genoa, Italy
| | - Paola Gavazzo
- Institute of Biophysics, National Research Council of Italy, Genoa, Italy
| | - Massimo Vassalli
- Institute of Biophysics, National Research Council of Italy, Genoa, Italy
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Sbrana F, Pino BD, Bigazzi F, Ripoli A, Coceani M, Luciani R, Pianelli M, Sampietro T. Hefh In Real Life, How To: More Evolocumab Than Authorized. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Marrella A, Tedeschi G, Giannoni P, Lagazzo A, Sbrana F, Barberis F, Quarto R, Puglisi F, Scaglione S. "Green-reduced" graphene oxide induces in vitro an enhanced biomimetic mineralization of polycaprolactone electrospun meshes. Mater Sci Eng C Mater Biol Appl 2018; 93:1044-1053. [PMID: 30274035 DOI: 10.1016/j.msec.2018.08.052] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 05/22/2018] [Accepted: 08/26/2018] [Indexed: 12/11/2022]
Abstract
A novel green method for graphene oxide (GO) reduction via ascorbic acid has been adopted to realize bio-friendly reduced graphene oxide (RGO)/polycaprolactone (PCL) nanofibrous meshes, as substrates for bone tissue engineering applications. PCL fibrous mats enriched with either RGO or GO (0.25 wt%) were fabricated to recapitulate the fibrillar structure of the bone extracellular matrix (ECM) and the effects of RGO incorporation on the structural proprieties, biomechanics and bioactivity of the nano-composites meshes were evaluated. RGO/PCL fibrous meshes displayed superior mechanical properties (i.e. Young's Modulus and ultimate tensile strength) besides supporting noticeably improved cell adhesion, spreading and proliferation of fibroblasts and osteoblast-like cell lines. Furthermore, RGO-based electrospun substrates enhanced in vitro calcium deposition in the ECM produced by osteoblast-like cells, which was paralleled, in human mesenchymal stem cells grown onto the same substrates, by an increased expression of the osteogenic markers mandatory for mineralization. In this respect, the capability of graphene-based materials to adsorb osteogenic factors cooperates synergically with the rougher surface of RGO/PCL-based materials, evidenced by AFM analysis, to ignite mineralization of the neodeposited matrix and to promote the osteogenic commitment of the cultured cell in the surrounding microenvironment.
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Affiliation(s)
- Alessandra Marrella
- CNR - National Research Council of Italy, IEIIT Institute, Via De Marini 6, 16149 Genoa, Italy; Department of Experimental Medicine, University of Genoa, Largo L.B. Alberti 2, 16132 Genoa, Italy
| | - Giacomo Tedeschi
- CNR - National Research Council of Italy, IEIIT Institute, Via De Marini 6, 16149 Genoa, Italy; Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genova, Via all' Opera Pia 13, 16145 Genoa, Italy
| | - Paolo Giannoni
- Department of Experimental Medicine, University of Genoa, Largo L.B. Alberti 2, 16132 Genoa, Italy
| | - Alberto Lagazzo
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, via all'Opera Pia 15, 16145 Genoa, Italy
| | | | - Fabrizio Barberis
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, via all'Opera Pia 15, 16145 Genoa, Italy
| | - Rodolfo Quarto
- Department of Experimental Medicine, University of Genoa, Largo L.B. Alberti 2, 16132 Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Francesca Puglisi
- Department of Experimental Medicine, University of Genoa, Largo L.B. Alberti 2, 16132 Genoa, Italy
| | - Silvia Scaglione
- CNR - National Research Council of Italy, IEIIT Institute, Via De Marini 6, 16149 Genoa, Italy.
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Petecchia L, Viti F, Sbrana F, Vassalli M, Gavazzo P. A biophysical approach to quantify skeletal stem cells trans-differentiation as a model for the study of osteoporosis. Biophys Chem 2017; 229:84-92. [DOI: 10.1016/j.bpc.2017.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/09/2017] [Accepted: 05/22/2017] [Indexed: 01/21/2023]
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Von Seth M, Hillered L, Otterbeck A, Hanslin K, Larsson A, Sjölin J, Lipcsey M, Cove ME, Chew NS, Vu LH, Lim RZ, Puthucheary Z, Hanslin K, Wilske F, Skorup P, Tano E, Sjölin J, Lipcsey M, Derese I, Thiessen S, Derde S, Dufour T, Pauwels L, Bekhuis Y, Van den Berghe G, Vanhorebeek I, Khan M, Dwivedi D, Zhou J, Prat A, Seidah NG, Liaw PC, Fox-Robichaud AE, Von Seth M, Skorup P, Hillered L, Larsson A, Sjölin J, Lipcsey M, Otterbeck A, Hanslin K, Lipcsey M, Larsson A, Von Seth M, Correa T, Pereira J, Takala J, Jakob S, Skorup P, Maudsdotter L, Tano E, Lipcsey M, Castegren M, Larsson A, Sjölin J, Xue M, Xu JY, Liu L, Huang YZ, Guo FM, Yang Y, Qiu HB, Kuzovlev A, Moroz V, Goloubev A, Myazin A, Chumachenko A, Pisarev V, Takeyama N, Tsuda M, Kanou H, Aoki R, Kajita Y, Hashiba M, Terashima T, Tomino A, Davies R, O’Dea KP, Soni S, Ward JK, O’Callaghan DJ, Takata M, Gordon AC, Wilson J, Zhao Y, Singer M, Spencer J, Shankar-Hari M, Genga KR, Lo C, Cirstea MS, Walley KR, Russell JA, Linder A, Boyd JH, Sedlag A, Riedel C, Georgieff M, Barth E, Debain A, Jonckheer J, Moeyersons W, Van zwam K, Puis L, Staessens K, Honoré PM, Spapen HD, De Waele E, de Garibay APR, Bracht H, Ende-Schneider B, Schreiber C, Kreymann B, Bini A, Votino E, Giuliano G, Steinberg I, Vetrugno L, Trunfio D, Sidoti A, Essig A, Brogi E, Forfori F, Conroy M, Marsh B, O’Flynn J, Henne-Bruns D, Gebhard F, Orend K, Halatsch M, Weiss M, Chase M, Freinkman E, Uber A, Liu X, Cocchi MN, Donnino MW, Peetermans M, Liesenborghs L, Claes J, Vanassche T, Hoylaerts M, Jacquemin M, Vanhoorelbeke K, De Meyer S, Verhamme P, Vögeli A, Ottiger M, Meier M, Steuer C, Bernasconi L, Huber A, Christ-Crain M, Henzen C, Hoess C, Thomann R, Zimmerli W, Müller B, Schütz P, Hoppensteadt D, Walborn A, Rondina M, Tsuruta K, Fareed J, Tachyla S, Ikeda T, Ono S, Ueno T, Suda S, Nagura T, Damiani E, Domizi R, Scorcella C, Tondi S, Pierantozzi S, Ciucani S, Mininno N, Adrario E, Pelaia P, Donati A, Andersen MS, Lu S, Lopez G, Lassen AT, Ghiran I, Shapiro NI, Trahtemberg U, Sviri S, Beil M, Agur Z, Van Heerden P, Jahaj E, Vassiliou A, Mastora Z, Orfanos SE, Kotanidou A, Wirz Y, Sager R, Amin D, Amin A, Haubitz S, Hausfater P, Huber A, Kutz A, Mueller B, Schuetz P, Sager RS, Wirz YW, Amin DA, Amin AA, Hausfater PH, Huber AH, Haubitz S, Kutz A, Mueller B, Schuetz P, Gottin L, Dell’amore C, Stringari G, Cogo G, Ceolagraziadei M, Sommavilla M, Soldani F, Polati E, Meier M, Baumgartner T, Zurauskaité G, Gupta S, Mueller B, Devendra A, Schuetz P, Mandaci D, Eren G, Ozturk F, Emir N, Hergunsel O, Azaiez S, Khedher S, Maaoui A, Salem M, Chernevskaya E, Beloborodova N, Bedova A, Sarshor YU, Pautova A, Gusarov V, Öveges N, László I, Forgács M, Kiss T, Hankovszky P, Palágyi P, Bebes A, Gubán B, Földesi I, Araczki Á, Telkes M, Ondrik Z, Helyes Z, Kemény Á, Molnár Z, Spanuth E, Ebelt H, Ivandic B, Thomae R, Werdan K, El-Shafie M, Taema K, El-Hallag M, Kandeel A, Tayeh O, Taema K, Eldesouky M, Omara A, Winkler MS, Holzmann M, Nierhaus A, Mudersbach E, Schwedhelm E, Daum G, Kluge S, Zoellner C, Greiwe G, Sawari H, Schwedhelm E, Nierhaus A, Kluge S, Kubitz J, Jung R, Daum G, Reichenspurner H, Zoellner C, Winkler MS, Groznik M, Ihan A, Andersen LW, Chase M, Holmberg MJ, Wulff A, Cocchi MN, Donnino MW, Balci C, Haliloglu M, Bilgili B, Bilgin H, Kasapoglu U, Sayan I, Süzer M, Mulazımoglu L, Cinel I, Patel V, Shah S, Parulekar P, Minton C, Patel J, Ejimofo C, Choi H, Costa R, Caruso P, Nassar P, Fu J, Jin J, Xu Y, Kong J, Wu D, Yaguchi A, Klonis A, Ganguly S, Kollef M, Burnham C, Fuller B, Mavrommati A, Chatzilia D, Salla E, Papadaki E, Kamariotis S, Christodoulatos S, Stylianakis A, Alamanos G, Simoes M, Trigo E, Silva N, Martins P, Pimentel J, Baily D, Curran LA, Ahmadnia E, Patel BV, Adukauskiene D, Cyziute J, Adukauskaite A, Pentiokiniene D, Righetti F, Colombaroli E, Castellano G, Wilske F, Skorup P, Lipcsey M, Hanslin K, Larsson A, Sjölin J, Man M, Shum HP, Chan YH, Chan KC, Yan WW, Lee RA, Lau SK, Dilokpattanamongkol P, Thirapakpoomanunt P, Anakkamaetee R, Montakantikul P, Tangsujaritvijit V, Sinha S, Pati J, Sahu S, Adukauskiene D, Valanciene D, Dambrauskiene A, Adukauskiene D, Valanciene D, Dambrauskiene A, Hernandez K, Lopez T, Saca D, Bello M, Mahmood W, Hamed K, Al Badi N, AlThawadi S, Al Hosaini S, Salahuddin N, Cilloniz CC, Ceccato AC, Bassi GLL, Ferrer MF, Gabarrus AG, Ranzani OR, Jose ASS, Vidal CGG, de la Bella Casa JPP, Blasi FB, Torres AT, Adukauskiene D, Ciginskiene A, Dambrauskiene A, Simoliuniene R, Giuliano G, Triunfio D, Sozio E, Taddei E, Brogi E, Sbrana F, Ripoli A, Bertolino G, Tascini C, Forfori F, Fleischmann C, Goldfarb D, Schlattmann P, Schlapbach L, Kissoon N, Baykara N, Akalin H, Arslantas MK, Gavrilovic SG, Vukoja MV, Hache MH, Kashyap RK, Dong YD, Gajic OG, Ranzani O, Shankar-Hari M, Harrison D, Rabello L, Rowan K, Salluh J, Soares M, Markota AM, Fluher JF, Kogler DK, Borovšak ZB, Sinkovic AS, László I, Öveges N, Forgács M, Kiss T, Hankovszky P, Palágyi P, Bebes A, Gubán B, Földesi I, Araczki Á, Telkes M, Ondrik Z, Helyes Z, Kemény Á, Molnár Z, Fareed J, Siddiqui Z, Aggarwal P, Iqbal O, Hoppensteadt D, Lewis M, Wasmund R, Abro S, Raghuvir S, Tsuruta K, Barie PS, Fineberg D, Radford A, Tsuruta K, Casazza A, Vilardo A, Bellazzi E, Boschi R, Ciprandi D, Gigliuto C, Preda R, Vanzino R, Vetere M, Carnevale L, Kyriazopoulou E, Pistiki A, Routsi C, Tsangaris I, Giamarellos-Bourboulis E, Kyriazopoulou E, Tsangaris I, Routsi C, Pnevmatikos I, Vlachogiannis G, Antoniadou E, Mandragos K, Armaganidis A, Giamarellos-Bourboulis E, Allan P, Oehmen R, Luo J, Ellis C, Latham P, Newman J, Pritchett C, Pandya D, Cripps A, Harris S, Jadav M, Langford R, Ko B, Park H, Beumer CM, Koch R, Beuningen DV, Oudelashof AM, Vd Veerdonk FL, Kolwijck E, VanderHoeven JG, Bergmans DC, Hoedemaekers C, Brandt JB, Golej J, Burda G, Mostafa G, Schneider A, Vargha R, Hermon M, Levin P, Broyer C, Assous M, Wiener-Well Y, Dahan M, Benenson S, Ben-Chetrit E, Faux A, Sherazi R, Sethi A, Saha S, Kiselevskiy M, Gromova E, Loginov S, Tchikileva I, Dolzhikova Y, Krotenko N, Vlasenko R, Anisimova N, Spadaro S, Fogagnolo A, Remelli F, Alvisi V, Romanello A, Marangoni E, Volta C, Degrassi A, Mearelli F, Casarsa C, Fiotti N, Biolo G, Cariqueo M, Luengo C, Galvez R, Romero C, Cornejo R, Llanos O, Estuardo N, Alarcon P, Magazi B, Khan S, Pasipanodya J, Eriksson M, Strandberg G, Lipsey M, Larsson A, Rajput Z, Hiscock F, Karadag T, Uwagwu J, Jain S, Molokhia A, Barrasa H, Soraluce A, Uson E, Rodriguez A, Isla A, Martin A, Fernández B, Fonseca F, Sánchez-Izquierdo JA, Maynar FJ, Kaffarnik M, Alraish R, Frey O, Roehr A, Stockmann M, Wicha S, Shortridge D, Castanheira M, Sader HS, Streit JM, Flamm RK, Falsetta K, Lam T, Reidt S, Jancik J, Kinoshita T, Yoshimura J, Yamakawa K, Fujimi S, Armaganidis A, Torres A, Zakynthinos S, Mandragos C, Giamarellos-Bourboulis E, Ramirez P, De la Torre-Prados M, Rodriguez A, Dale G, Wach A, Beni L, Hooftman L, Zwingelstein C, François B, Colin G, Dequin PF, Laterre PF, Perez A, Welte R, Lorenz I, Eller P, Joannidis M, Bellmann R, Lim S, Chana S, Patel S, Higuera J, Cabestrero D, Rey L, Narváez G, Blandino A, Aroca M, Saéz S, De Pablo R, Thiessen S, Vanhorebeek I, Derde S, Derese I, Dufour T, Albert CN, Langouche L, Goossens C, Peersman N, Vermeersch P, Vander Perre S, Holst J, Wouters P, Van den Berghe G, Liu X, Uber AU, Holmberg M, Konanki V, McNaughton M, Zhang J, Donnino MW, Demirkiran O, Byelyalov A, Luengo C, Guerrero J, Cariqueo M, Scorcella C, Domizi R, Damiani E, Tondi S, Pierantozzi S, Rossini N, Falanga U, Monaldi V, Adrario E, Pelaia P, Donati A, Cole O, Scawn N, Balciunas M, Blascovics I, Vuylsteke A, Salaunkey K, Omar A, Salama A, Allam M, Alkhulaifi A, Verstraete S, Vanhorebeek I, Van Puffelen E, Derese I, Ingels C, Verbruggen S, Wouters P, Joosten K, Hanot J, Guerra G, Vlasselaers D, Lin J, Van den Berghe G, Haines R, Zolfaghari P, Hewson R, Offiah C, Prowle J, Park H, Ko B, Buter H, Veenstra JA, Koopmans M, Boerma EC, Veenstra JA, Buter H, Koopmans M, Boerma EC, Taha A, Shafie A, Hallaj S, Gharaibeh D, Hon H, Bizrane M, El Khattate AA, Madani N, Abouqal R, Belayachi J, Kongpolprom N, Sanguanwong N, Sanaie S, Mahmoodpoor A, Hamishehkar H, Biderman P, Van Heerden P, Avitzur Y, Solomon S, Iakobishvili Z, Carmi U, Gorfil D, Singer P, Paisley C, Patrick-Heselton J, Mogk M, Humphreys J, Welters I, Pierantozzi S, Scorcella C, Domizi R, Damiani E, Tondi S, Casarotta E, Bolognini S, Adrario E, Pelaia P, Donati A, Holmberg MJ, Moskowitz A, Patel P, Grossestreuer A, Uber A, Andersen LW, Donnino MW, Malinverni S, Goedeme D, Mols P, Langlois PL, Szwec C, D’Aragon F, Heyland DK, Manzanares W, Manzanares W, Szwec C, Langlois P, Aramendi I, Heyland D, Stankovic N, Nadler J, Uber A, Holmberg M, Sanchez L, Wolfe R, Chase M, Donnino M, Cocchi M, Atalan HK, Gucyetmez B, Kavlak ME, Aslan S, Kargi A, Yazici S, Donmez R, Polat KY, Piechota M, Piechota A, Misztal M, Bernas S, Pietraszek-Grzywaczewska I, Saleh M, Hamdy A, Hamdy A, Elhallag M, Atar F, Kundakci A, Gedik E, Sahinturk H, Zeyneloglu P, Pirat A, Popescu M, Tomescu D, Van Gassel R, Baggerman M, Schaap F, Bol M, Nicolaes G, Beurskens D, Damink SO, Van de Poll M, Horibe M, Sasaki M, Sanui M, Iwasaki E, Sawano H, Goto T, Ikeura T, Hamada T, Oda T, Mayumi T, Kanai T, Kjøsen G, Horneland R, Rydenfelt K, Aandahl E, Tønnessen T, Haugaa H, Lockett P, Evans L, Somerset L, Ker-Reid F, Laver S, Courtney E, Dalton S, Georgiou A, Robinson K, Lam T, Haas B, Reidt S, Bartlett K, Jancik J, Bigwood M, Hanley R, Morgan P, Marouli D, Chatzimichali A, Kolyvaki S, Panteli A, Diamantaki E, Pediaditis E, Sirogianni P, Ginos P, Kondili E, Georgopoulos D, Askitopoulou H, Zampieri FG, Liborio AB, Besen BA, Cavalcanti AB, Dominedò C, Dell’Anna AM, Monayer A, Grieco DL, Barelli R, Cutuli SL, Maddalena AI, Picconi E, Sonnino C, Sandroni C, Antonelli M, Gucyetmez B, Atalan HK, Tuzuner F, Cakar N, Jacob M, Sahu S, Singh YP, Mehta Y, Yang KY, Kuo S, Rai V, Cheng T, Ertmer C, Czempik P, Hutchings S, Watts S, Wilson C, Burton C, Kirkman E, Drennan D, O’Prey A, MacKay A, Forrest R, Oglinda A, Ciobanu G, Casian M, Oglinda C, Lun CT, Yuen HJ, Ng G, Leung A, So SO, Chan HS, Lai KY, Sanguanwit P, Charoensuk W, Phakdeekitcharoen B, Batres-Baires G, Kammerzell I, Lahmer T, Mayr U, Schmid R, Huber W, Spanuth E, Bomberg H, Klingele M, Thomae R, Groesdonk H, Bernas S, Piechota M, Mirkiewicz K, Pérez AG, Silva J, Ramos A, Acharta F, Perezlindo M, Lovesio L, Antonelli PG, Dogliotti A, Lovesio C, Baron J, Schiefer J, Baron DM, Faybik P, Shum HP, Yan WW, Chan TM, Marouli D, Chatzimichali A, Kolyvaki S, Panteli A, Diamantaki E, Pediaditis E, Sirogianni P, Ginos P, Kondili E, Georgopoulos D, Askitopoulou H, Vicka V, Gineityte D, Ringaitiene D, Sipylaite J, Pekarskiene J, Beurskens DM, Van Smaalen TC, Hoogland P, Winkens B, Christiaans MH, Reutelingsperger CP, Van Heurn E, Nicolaes GA, Schmitt FS, Salgado ES, Friebe JF, Fleming TF, Zemva JZ, Schmoch TS, Uhle FU, Kihm LK, Morath CM, Nusshag CN, Zeier MZ, Bruckner TB, Mehrabi AM, Nawroth PN, Weigand MW, Hofer SH, Brenner TB, Fotopoulou G, Poularas I, Kokkoris S, Brountzos E, Zakynthinos S, Routsi C, Saleh M, Elghonemi M, Nilsson KF, Sandin J, Gustafsson L, Frithiof R, Skorniakov I, Varaksin A, Vikulova D, Shaikh O, Whiteley C, Ostermann M, Di Lascio G, Anicetti L, Bonizzoli M, Fulceri G, Migliaccio ML, Sentina P, Cozzolino M, Peris A, Khadzhynov D, Halleck F, Staeck O, Lehner L, Budde K, Slowinski T, Slowinski T, Kindgen-Milles D, Khadzhynov D, Huysmans N, Laenen MV, Helmschrodt A, Boer W. 37th International Symposium on Intensive Care and Emergency Medicine (part 3 of 3). Crit Care 2017. [PMCID: PMC5374592 DOI: 10.1186/s13054-017-1629-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Bregante M, Carpaneto A, Piazza V, Sbrana F, Vassalli M, Faimali M, Gambale F. Osmoregulated Chloride Currents in Hemocytes from Mytilus galloprovincialis. PLoS One 2016; 11:e0167972. [PMID: 27936151 PMCID: PMC5148081 DOI: 10.1371/journal.pone.0167972] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 08/20/2016] [Accepted: 11/23/2016] [Indexed: 11/20/2022] Open
Abstract
We investigated the biophysical properties of the transport mediated by ion channels in hemocytes from the hemolymph of the bivalve Mytilus galloprovincialis. Besides other transporters, mytilus hemocytes possess a specialized channel sensitive to the osmotic pressure with functional properties similar to those of other transport proteins present in vertebrates. As chloride fluxes may play an important role in the regulation of cell volume in case of modifications of the ionic composition of the external medium, we focused our attention on an inwardly-rectifying voltage-dependent, chloride-selective channel activated by negative membrane potentials and potentiated by the low osmolality of the external solution. The chloride channel was slightly inhibited by micromolar concentrations of zinc chloride in the bath solution, while the antifouling agent zinc pyrithione did not affect the channel conductance at all. This is the first direct electrophysiological characterization of a functional ion channel in ancestral immunocytes of mytilus, which may bring a contribution to the understanding of the response of bivalves to salt and contaminant stresses.
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Affiliation(s)
- Monica Bregante
- Institute of Biophysics, National Research Council of Italy (IBF), Genova, Italy
| | - Armando Carpaneto
- Institute of Biophysics, National Research Council of Italy (IBF), Genova, Italy
| | - Veronica Piazza
- Institute of Marine Sciences, National Research Council of Italy (ISMAR), Genova, Italy
| | - Francesca Sbrana
- Institute of Biophysics, National Research Council of Italy (IBF), Genova, Italy
| | - Massimo Vassalli
- Institute of Biophysics, National Research Council of Italy (IBF), Genova, Italy
| | - Marco Faimali
- Institute of Marine Sciences, National Research Council of Italy (ISMAR), Genova, Italy
| | - Franco Gambale
- Institute of Biophysics, National Research Council of Italy (IBF), Genova, Italy
- * E-mail:
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Kebed K, Moustafa TAMER, Conte R, Doering C, Van Grootel RWJ, Badacz R, Nemes A, Uejima T, Oehman J, Ceponiene I, Fabiani I, Garcia Martin A, Nishikawa H, Jurko AJR, Pasanisi E, Zagatina A, Stoian M, Monteagudo Ruiz JM, Lazaro Mendes AS, Ruiz Fernandez D, Chong A, Park YH, Mizariene V, Hlubocka Z, Ring L, Kruse E, Addetia K, Ciszek B, Thykattil M, Guile B, Lang RM, Mor-Avi V, Mahfouz RAGAB, Elzayat AHMED, Goda MOHAMD, Gad MARWA, Sansone F, Napoli F, Tonacci A, Raciti M, Landi P, Grande A, Ait-Ali L, Sveric K, Richter U, Strasser RH, Wunderlich C, Menting ME, Mcghie JS, Strachinaru M, Vletter WB, Geleijnse ML, Roos-Hesselink JW, Van Den Bosch AE, Kablak-Ziembicka A, Urbanczyk-Zawadzka M, Banys RP, Musialek P, Pieniazek P, Mleczko S, Zmudka K, Przewlocki T, Marton I, Domsik P, Kalapos A, Posfai E, Modok S, Borbenyi Z, Forster T, Takahashi L, Nishikawa H, Semba H, Sawada H, Yamashita T, Jurkevicius R, Petkeviciene J, Gustiene O, Tamuleviciute-Prasciene E, Motiejunaite J, Slapikas R, Pugliese NR, La Carrubba S, Antonini Canterin F, Colonna P, Caso P, Benedetto F, Citro R, Carerj S, Di Bello V, Moya Mur JL, Lazaro Rivera C, Rincon Diaz LM, Miguelena Hycka J, Garcia Lledo A, Jimenez Nacher JJ, Fernandez-Golfin C, Rodriguez-Roda J, Zamorano JL, Uejima T, Takahashi L, Semba H, Sawada H, Yamashita T, Jurko A, Jurko T, Mistinova-Polakova J, Sbrana F, Petersen C, Bigazzi F, Dal Pino B, Coceani M, Ripoli A, Pianelli M, Luciani R, Sampietro T, Zhuravskaya N, Vareldzhyan Y, Kamenskikh M, Shmatov D, Zamfir D, Vijiiac A, Pitic D, Tamasescu G, Onciul S, Onut R, Stefan C, Dorobantu M, Gonzalez-Gomez A, Izurieta C, Fernandez-Golfin C, Marco A, Alonso Salinas GL, Hinojar Baydes R, Garcia Martin A, Casas Rojo E, Zamorano JL, Ferreira AR, Moura Ferreira J, Leite L, Oliveira AP, Ribeiro N, Barbosa AJ, Mata Martins R, Ramos D, Pego M, Gamaza Chulian S, Diaz Retamino E, Camacho Freire S, Gutierrez Barrios A, Oneto Otero J, Bansal M, Grewal HK, Kasliwal RR, Wahi S, Lee SH, Lee DS, Hwang JM, Kim JS, Kim JH, Chun KJ, Bieseviciene M, Verseckaite R, Jonkaitiene R, Janenaite J, Jurkevicius R, Dostalova G, Hlubocky J, Novotny R, Vondracek V, Lindner J, Linhart A, Preston NK. Poster Session 1The imaging examination and quality assessmentP185Why did the normal values of the left and right atrial volumes increase in the recent chamber quantification guidelines update?P186Atrial electromechanical delay, Left Atrial mechanical functions and longitudinal left ventricular strain in pre-diabetic patientsP187A web-based platform for e-training in echocardiographyP188Righ atrial size as a marker of success in electrical cardioversion in patients with persistent atrial fibrillationP189Echocardiographic assessment of left atrial dimensions and function in a healthy populationP190Impact of carotid artery revascularization on the cognitive and functional outcome and cerebral flow on TCD and brain MRI in patients with symptomatic carotid artery stenosis: a preliminary reportP191Aortic elasticity is impaired in hypereosinophilic syndromeP192Disturbed intracardiac flow transit prognosticates early decompensation in dilated cardiomyopathyP193Ultrasound guided treatment in acute heart failureP194Determinants of impaired global longitudinal function in middle-aged subjects free of cardiovascular diseaseP195Left ventricular remodeling in asymptomatic heart failure: classification and prognostic evaluationP196Restricted displacement of lateral right ventricular wall: a physiopathological explanation of geometrical and functional cardiac changes after cardiac surgeryP197A novel method to image intracardiac flow stagnation for the risk stratification for thrombosisP198Magnetic resonance imaging of anomalous origin of the left coronary artery from the pulmonary artery in children older than 4 monthsP199Coronary flow reserve is improved by LDL apheresis in patients with familial hypercholesterolemia and chronic ischemic heart diseaseP200 High velocities in the proximal part of the coronary arteries during routine echocardiography can predict nearest prognosisP201Recovery potential of the right ventricular function in the setting of a first STEMI treated by primary PCI: an echocardiographic studyP202Severe aortic stenosis patients with preserved ejection fraction according to flow and gradient classification: prevalence and outcomesP203Is basal left ventricular ejection time able to predict the severity of aortic stenosis in patients with depressed ejection fraction?P204Acceleration time in aortic stenosis: a new echocardiographic diagnostic parameterP205Application of novel Doppler indices of stenosis severity in the assessment of rheumatic mitral stenosis beyond conventional valve area and transvalvular gradientsP206Comparison of conventional echo score in patients with symptomatic rheumatic mitral stenosis: transesophageal echocardiography versus transthoracic echocardiographyP207Speckle-tracking echocardiography in evaluation early left ventricular systolic dysfunction in asymptomatic aortic regurgitation patients with good left ventricular ejection fractionP208Expansible aortic ring annuloplasty: mid-term results of aortic valve repairP209Papillary muscle dysfunction: insights into mitral valve prolapse using speckle tracking imaging. Eur Heart J Cardiovasc Imaging 2016. [DOI: 10.1093/ehjci/jew236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sbrana F, Cardinali G, Dal Pino B, Bigazzi F, Sabatino L, Pianelli M, Luciani R, Sampietro T. A case of 'anaphylactic-like' reaction during LDL apheresis: a pathophysiological hypothesis on white wine containing metabisulphite. Transfus Med 2016; 26:460-461. [PMID: 27714882 DOI: 10.1111/tme.12369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 05/16/2016] [Accepted: 09/18/2016] [Indexed: 11/26/2022]
Affiliation(s)
- F Sbrana
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - G Cardinali
- Department of Pharmaceutical Sciences - Microbiology, University of Perugia, Perugia, Italy.,CEMIN, Centre of Excellence on Nanostructured Innovative Materials, Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - B Dal Pino
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - F Bigazzi
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - L Sabatino
- CNR Institute of Clinical Physiology, Pisa, Italy
| | - M Pianelli
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - R Luciani
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - T Sampietro
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
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Sampietro T, Sbrana F, Bigazzi F, Dal Pino B, Luciani R, Pianelli M, Marconcini C, Pisciotta L. Xanthomata striata palmaris regression with fenofibrate in type III dyslipoproteinemia: A clinical report. Nutr Metab Cardiovasc Dis 2016; 26:848-850. [PMID: 27263443 DOI: 10.1016/j.numecd.2016.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/15/2016] [Accepted: 04/22/2016] [Indexed: 10/21/2022]
Affiliation(s)
- T Sampietro
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy.
| | - F Sbrana
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - F Bigazzi
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - B Dal Pino
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - R Luciani
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - M Pianelli
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - C Marconcini
- U.O. U.O. Oculistica - Ospedale "Felice Lotti", Pontedera, Italy
| | - L Pisciotta
- U.O. Clinica di Medicina Interna 1, Università degli Studi di Genova, Genova, Italy
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Iacomino G, Picariello G, Sbrana F, Raiteri R, D'Agostino L. DNA-HMGB1 interaction: The nuclear aggregates of polyamine mediation. Biochim Biophys Acta 2016; 1864:1402-10. [PMID: 27451951 DOI: 10.1016/j.bbapap.2016.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 07/13/2016] [Accepted: 07/19/2016] [Indexed: 11/20/2022]
Abstract
Nuclear aggregates of polyamines (NAPs) are supramolecular compounds generated by the self-assembly of protonated nuclear polyamines (spermine, spermidine and putrescine) and phosphate ions. In the presence of genomic DNA, the hierarchical process of self-structuring ultimately produces nanotube-like polymers that envelop the double helix. Because of their modular nature and their aggregation-disaggregation dynamics, NAPs confer plasticity and flexibility to DNA. Through the disposition of charges, NAPs also enable a bidirectional stream of information between the genome and interacting moieties. High mobility group (HMG) B1 is a non-histone chromosomal protein that binds to DNA and that influences multiple nuclear processes. Because genomic DNA binds to either NAPs or HMGB1 protein, we explored the ability of in vitro self-assembled NAPs (ivNAPs) to mediate the DNA-HMGB1 interaction. To this end, we structured DNA-NAPs-HMGB1 and DNA-HMGB1-NAPs ternary complexes in vitro through opportune sequential incubations. Mobility shift electrophoresis and atomic force microscopy showed that the DNA-ivNAPs-HGMB1 complex had conformational assets supposedly more suitable those of the DNA-HGMB1-ivNAPs to comply with the physiological and functional requirements of DNA. Our findings indicated that ivNAPs act as mediators of the DNA-HMGB1 interaction.
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Affiliation(s)
- Giuseppe Iacomino
- Istituto di Scienze dell'Alimentazione - CNR, Via Roma 64 - 83100, Avellino, Italy
| | - Gianluca Picariello
- Istituto di Scienze dell'Alimentazione - CNR, Via Roma 64 - 83100, Avellino, Italy
| | - Francesca Sbrana
- Istituto di Biofisica - CNR, Via De Marini 6 - 16149, Genova, Italy
| | - Roberto Raiteri
- Istituto di Biofisica - CNR, Via De Marini 6 - 16149, Genova, Italy; Dipartimento di Informatica, Bioingegneria, Robotica ed Ingegneria dei Sistemi - Università degli Studi di Genova, Via All'Opera Pia 13 - 16145, Genova, Italy
| | - Luciano D'Agostino
- Istituto di Scienze dell'Alimentazione - CNR, Via Roma 64 - 83100, Avellino, Italy.
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Sbrana F, Loggini B, Galimberti S, Coceani M, Latorre M, Seccia V, L'Abbate S, Mosca M, Pasanisi EM, Baldini C. Chronic skin lichenification as unusual presentation of eosinophilic granulomatosis with polyangitis: case report and literature review. Acta Reumatol Port 2016; 41:158-161. [PMID: 27606476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Eosinophilic granulomatosis with polyangitis (EGPA) is an uncommon ANCA-associated systemic small-vessel necrotizing vasculitis. At times, EGPA presenting manifestations can be very different from the usually recognized disease patterns. We report a 52-year-old female patient with 3 years history of itching. During the time occurred a chronic skin lichenification on her legs and gradually developed a full-blown ANCA-MPO positive EGPA in combination with blood hypereosinophilia, eosinophilic vasculitis at skin biopsy, subclinical asthma and chronic rhinosinusitis.
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Petecchia L, Sbrana F, Utzeri R, Vercellino M, Usai C, Visai L, Vassalli M, Gavazzo P. Electro-magnetic field promotes osteogenic differentiation of BM-hMSCs through a selective action on Ca(2+)-related mechanisms. Sci Rep 2015; 5:13856. [PMID: 26364969 PMCID: PMC4568470 DOI: 10.1038/srep13856] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [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: 04/13/2015] [Accepted: 08/07/2015] [Indexed: 12/22/2022] Open
Abstract
Exposure to Pulsed Electromagnetic Field (PEMF) has been shown to affect proliferation and differentiation of human mesenchymal stem cells derived from bone marrow stroma (BM-hMSC). These cells offer considerable promise in the field of regenerative medicine, but their clinical application is hampered by major limitations such as poor availability and the time required to differentiate up to a stage suitable for implantation. For this reason, several research efforts are focusing on identifying strategies to speed up the differentiation process. In this work we investigated the in vitro effect of PEMF on Ca2+-related mechanisms promoting the osteogenic differentiation of BM-hMSC. Cells were daily exposed to PEMF while subjected to osteogenic differentiation and various Ca2+-related mechanisms were monitored using multiple approaches for identifying functional and structural modifications related to this process. The results indicate that PEMF exposure promotes chemically induced osteogenesis by mechanisms that mainly interfere with some of the calcium-related osteogenic pathways, such as permeation and regulation of cytosolic concentration, leaving others, such as extracellular deposition, unaffected. The PEMF effect is primarily associated to early enhancement of intracellular calcium concentration, which is proposed here as a reliable hallmark of the osteogenic developmental stage.
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Affiliation(s)
- Loredana Petecchia
- Institute of Biophysics, National Research Council, Via De Marini 6, 16149 Genova, Italy
| | - Francesca Sbrana
- Institute of Biophysics, National Research Council, Via De Marini 6, 16149 Genova, Italy
| | - Roberto Utzeri
- Institute for Macromolecular Studies, National Research Council, Via De Marini 6, 16149 Genova, Italy
| | - Marco Vercellino
- Dept. of Molecular Medicine, Centre for Health Technologies (C.H.T.), INSTM UdR of Pavia, University of Pavia, Italy.,Dept. of Occupational Medicine, Ergonomy and Disability, Laboratory of Nanotechnology, Salvatore Maugeri Foundation, IRCCS, Pavia, Italy
| | - Cesare Usai
- Institute of Biophysics, National Research Council, Via De Marini 6, 16149 Genova, Italy
| | - Livia Visai
- Dept. of Molecular Medicine, Centre for Health Technologies (C.H.T.), INSTM UdR of Pavia, University of Pavia, Italy.,Dept. of Occupational Medicine, Ergonomy and Disability, Laboratory of Nanotechnology, Salvatore Maugeri Foundation, IRCCS, Pavia, Italy
| | - Massimo Vassalli
- Institute of Biophysics, National Research Council, Via De Marini 6, 16149 Genova, Italy
| | - Paola Gavazzo
- Institute of Biophysics, National Research Council, Via De Marini 6, 16149 Genova, Italy
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Tascini C, Lipsky B, Iacopi E, Ripoli A, Sbrana F, Coppelli A, Goretti C, Piaggesi A, Menichetti F. KPC-producing Klebsiella pneumoniae rectal colonization is a risk factor for mortality in patients with diabetic foot infections. Clin Microbiol Infect 2015; 21:790.e1-3. [DOI: 10.1016/j.cmi.2015.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 04/08/2015] [Accepted: 04/11/2015] [Indexed: 10/23/2022]
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Sbrana F, Bigazzi F, Ripoli A, Dal Pino B, Pasanisi E, Petersen C, Coceani M, Luciani R, Pianelli M, Sampietro T. The effects of lipoprotein apheresis on cardiovascular events incidence: A single-center experience. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sbrana F, Coceani M, Schlueter M, Rovai D, Ciardetti M. Pulmonary embolism secondary to fragmentation of a Port-a-Cath catheter. Minerva Anestesiol 2014; 80:1143-1144. [PMID: 24518217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- F Sbrana
- Fondazione Toscana Gabriele Monasterio, Pisa, Italia -
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Sampietro T, Sbrana F, Coceani M, Bigazzi F, Pastormerlo L, Luciani R, Dal Pino B, Pianelli M, Pasanisi EM. A giant coronary aneurysm induced by rotational atherectomy in a patient with unrecognized familial hypercholesterolemia. Nutr Metab Cardiovasc Dis 2014; 24:e31-e32. [PMID: 25150774 DOI: 10.1016/j.numecd.2014.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/04/2014] [Accepted: 07/08/2014] [Indexed: 11/24/2022]
Affiliation(s)
- T Sampietro
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy.
| | - F Sbrana
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - M Coceani
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - F Bigazzi
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | | | - R Luciani
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - B Dal Pino
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - M Pianelli
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - E M Pasanisi
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy
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Sbrana F, Puntoni M, Bigazzi F, Lorusso P, Luciani R, Pianelli M, Pasquariello A, Sampietro T. LDL apheresis in lipoprotein glomerulopathy: A new indication. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sbrana F, Tagliaferri E, Formichi B, Pasanisi EM, Tascini C. Epidemiology and outcome of Klebsiella pneumoniae carbapenemase-producing Klebsiella pneumoniae in a tertiary level Cardiac Intensive Care Unit. Minerva Anestesiol 2014; 80:510-511. [PMID: 24280818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- F Sbrana
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy -
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Viaggi B, Sbrana F, Tascini C. A dangerous job. Minerva Anestesiol 2014; 80:393-394. [PMID: 24193237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- B Viaggi
- Unità Operativa di Anestesia e Rianimazione 6°, Azienda Ospedaliera Universitaria Pisana, Pisa, Italia -
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Vassalli M, Sbrana F, Laurita A, Papi M, Bloise N, Visai L, Bochicchio B. Biological and structural characterization of a naturally inspired material engineered from elastin as a candidate for tissue engineering applications. Langmuir 2013; 29:15898-15906. [PMID: 24328291 DOI: 10.1021/la403311x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The adoption of a biomimetic approach in the design and fabrication of innovative materials for biomedical applications is encountering a growing interest. In particular, new molecules are being engineered on the basis of proteins present in the extracellular matrix, such as fibronectin, collagen, or elastin. Following this approach scientists expect to be able not only to obtain materials with tailored mechanical properties but also to elicit specific biological responses inherited by the mimicked tissue. In the present work, a novel peptide, engineered starting from the sequence encoded by exon 28 of human tropoelastin, was characterized from a chemical, physical, and biological point of view. The obtained molecule was observed to aggregate at high temperatures, forming a material able to induce a biological effect similar to what elastin does in the physiological context. This material seems to be a good candidate to play a relevant role in future biomedical applications with special reference to vascular surgery.
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Affiliation(s)
- Massimo Vassalli
- Institute of Biophysics, National Research Council, Genova, Italy
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Pastorino L, Dellacasa E, Scaglione S, Giulianelli M, Sbrana F, Vassalli M, Ruggiero C. Oriented collagen nanocoatings for tissue engineering. Colloids Surf B Biointerfaces 2013; 114:372-8. [PMID: 24246194 DOI: 10.1016/j.colsurfb.2013.10.026] [Citation(s) in RCA: 26] [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: 08/04/2013] [Revised: 10/11/2013] [Accepted: 10/16/2013] [Indexed: 12/11/2022]
Abstract
Collagens are among the most widely present and important proteins composing the human total body, providing strength and structural stability to various tissues, from skin to bone. In this paper, we report an innovative approach to bioactivate planar surfaces with oriented collagen molecules to promote cells proliferation and alignment. The Langmuir-Blodgett technique was used to form a stable collagen film at the air-water interface and the Langmuir-Schaefer deposition was adopted to transfer it to the support surface. The deposition process was monitored by estimating the mass of the protein layers after each deposition step. Collagen films were then structurally characterized by atomic force, scanning electron and fluorescent microscopies. Finally, collagen films were functionally tested in vitro. To this aim, 3T3 cells were seeded onto the silicon supports either modified or not (control) by collagen film deposition. Cells adhesion and proliferation on collagen films were found to be greater than those on control both after 1 (p<0.05) and 7 days culture. Moreover, the functionalization of the substrate surface triggered a parallel orientation of cells when cultured on it. In conclusion, these data demonstrated that the Langmuir-Schaefer technique can be successfully used for the deposition of oriented collagen films for tissue engineering applications.
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Affiliation(s)
- Laura Pastorino
- Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genova, Via all'Opera Pia 13, 16145 Genova, Italy
| | - Elena Dellacasa
- Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genova, Via all'Opera Pia 13, 16145 Genova, Italy
| | - Silvia Scaglione
- IEIIT-CNR, National Research Council, Via De Marini 6, 16149 Genoa, Italy.
| | - Massimo Giulianelli
- Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genova, Via all'Opera Pia 13, 16145 Genova, Italy
| | - Francesca Sbrana
- IBF-CNR, National Research Council, Via De Marini 6, 16149 Genoa, Italy
| | - Massimo Vassalli
- IBF-CNR, National Research Council, Via De Marini 6, 16149 Genoa, Italy
| | - Carmelina Ruggiero
- Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genova, Via all'Opera Pia 13, 16145 Genova, Italy
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Puntoni M, Ragusa A, Sbrana F, Bigazzi F, Sampietro T. Tangier skin fibroblasts show early senescence also in heterozygous state. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Bigazzi F, Puntoni M, Sbrana F, Adorni MP, Favari E, Bernini F, Sampietro T. Effect of heart failure induced by pacing on HDL levels and cellular cholesterol efflux in a model of minipig. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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38
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Sbrana F, Fotia C, Bracalello A, Baldini N, Marletta G, Ciapetti G, Bochicchio B, Vassalli M. Multiscale characterization of a chimeric biomimetic polypeptide for stem cell culture. Bioinspir Biomim 2012; 7:046007. [PMID: 22917962 DOI: 10.1088/1748-3182/7/4/046007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Mesenchymal stem cells have attracted great interest in the field of tissue engineering and regenerative medicine because of their multipotentiality and relative ease of isolation from adult tissues. The medical application of this cellular system requires the inclusion in a growth and delivery scaffold that is crucial for the clinical effectiveness of the therapy. In particular, the ideal scaffolding material should have the needed porosity and mechanical strength to allow a good integration with the surrounding tissues, but it should also assure high biocompatibility and full resorbability. For such a purpose, protein-inspired biomaterials and, in particular, elastomeric-derived polypeptides are playing a major role, in which they are expected to fulfil many of the biological and mechanical requirements. A specific chimeric protein, designed starting from elastin, resilin and collagen sequences, was characterized over different length scales. Single-molecule mechanics, aggregation properties and compatibility with human mesenchymal stem cells were tested, showing that the engineered compound is a good candidate as a stem cell scaffold to be used in tissue engineering applications.
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Affiliation(s)
- F Sbrana
- Institute of Biophysics, National Research Council, Genova, Italy
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39
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Galante D, Corsaro A, Florio T, Vella S, Pagano A, Sbrana F, Vassalli M, Perico A, D'Arrigo C. Differential toxicity, conformation and morphology of typical initial aggregation states of Aβ1-42 and Aβpy3-42 beta-amyloids. Int J Biochem Cell Biol 2012; 44:2085-93. [PMID: 22903022 DOI: 10.1016/j.biocel.2012.08.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 07/13/2012] [Accepted: 08/03/2012] [Indexed: 10/28/2022]
Abstract
Among the different species of water-soluble β-peptides (Aβ1-42, Aβ1-40 and N-terminal truncated Aβ-peptides), Aβpy3-42 is thought to play a relevant role in Alzheimer's pathogenesis due to its abundance, resistance to proteolysis, fast aggregation kinetics, dynamic structure and high neurotoxicity. To evaluate the specific structural characteristics and neurotoxicity of Aβpy3-42, we separated different aggregation states of Aβ1-42 and Aβpy3-42 using fast protein liquid chromatography, isolating in both cases three peaks that corresponded to sa (small), ma (medium) and la (large) aggregates. Conformational analysis, by circular dichroism showed a prevailing random coil conformation for sa and ma, and typical β-sheet conformation for la. AFM and TEM show differential structural features between the three aggregates of a given β-peptide and among the aggregate of the two β-peptides. The potential toxic effects of the different aggregates were evaluated using human neuroblastoma SH-SY5Y cells in the MTT reduction, in the xCELLigence System, and in the Annexin V binding experiments. In the case of Aβ1-42 the most toxic aggregate is la, while in the case of Aβpy3-42 both sa and la are equally toxic. Aβ aggregates were found to be internalized in the cells, as estimated by confocal immunofluorescence microscopy, with a higher effect observed for Aβpy3-42, showing a good correlation with the toxic effects. Together these experiments allowed the discrimination of the intermediate states more responsible of oligomer toxicity, providing new insights on the correlation between the aggregation process and the toxicity and confirming the peculiar role in the pathogenesis of Alzheimer disease of Aβpy3-42 peptide.
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Affiliation(s)
- Denise Galante
- Institute for Macromolecular Studies, National Research Council, 16149 Genova, Italy
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40
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Khairallah RJ, Shi G, Sbrana F, Prosser BL, Borroto C, Mazaitis MJ, Hoffman EP, Mahurkar A, Sachs F, Sun Y, Chen YW, Raiteri R, Lederer WJ, Dorsey SG, Ward CW. Microtubules underlie dysfunction in duchenne muscular dystrophy. Sci Signal 2012; 5:ra56. [PMID: 22871609 DOI: 10.1126/scisignal.2002829] [Citation(s) in RCA: 180] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Duchenne muscular dystrophy (DMD) is a fatal X-linked degenerative muscle disease caused by the absence of the microtubule-associated protein dystrophin, which results in a disorganized and denser microtubule cytoskeleton. In addition, mechanotransduction-dependent activation of calcium (Ca(2+)) and reactive oxygen species (ROS) signaling underpins muscle degeneration in DMD. We show that in muscle from adult mdx mice, a model of DMD, a brief physiologic stretch elicited microtubule-dependent activation of NADPH (reduced-form nicotinamide adenine dinucleotide phosphate) oxidase-dependent production of ROS, termed X-ROS. Further, X-ROS amplified Ca(2+) influx through stretch-activated channels in mdx muscle. Consistent with the importance of the microtubules to the dysfunction in mdx muscle, muscle cells with dense microtubule structure, such as those from adult mdx mice or from young wild-type mice treated with Taxol, showed increased X-ROS production and Ca(2+) influx, whereas cells with a less dense microtubule network, such as young mdx or adult mdx muscle treated with colchicine or nocodazole, showed little ROS production or Ca(2+) influx. In vivo treatments that disrupted the microtubule network or inhibited NADPH oxidase 2 reduced contraction-induced injury in adult mdx mice. Furthermore, transcriptome analysis identified increased expression of X-ROS-related genes in human DMD skeletal muscle. Together, these data show that microtubules are the proximate element responsible for the dysfunction in Ca(2+) and ROS signaling in DMD and could be effective therapeutic targets for intervention.
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Affiliation(s)
- Ramzi J Khairallah
- Center for Biomedical Engineering and Technology and Department of Physiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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41
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Adorni MP, Zimetti F, Puntoni M, Bigazzi F, Sbrana F, Minichilli F, Bernini F, Ronda N, Favari E, Sampietro T. Cellular cholesterol efflux and cholesterol loading capacity of serum: effects of LDL-apheresis. J Lipid Res 2012; 53:984-989. [PMID: 22414482 DOI: 10.1194/jlr.p024810] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
High LDL-cholesterol (LDL-C) characterizes familial hypercholesterolemia (FH) and familial combined hyperlipidemia (FCH). LDL-apheresis, used in these patients to reduce LDL-C levels, has been shown to also affect HDL levels and composition. We studied LDL-apheresis effects on six FH and nine FCH subjects' serum capacity to modulate cellular cholesterol efflux, an index of HDL functionality, and to load macrophages with cholesterol. Serum cholesterol efflux capacity (CEC) and macrophage cholesterol loading capacity (CLC) were measured before, immediately after, and two days after LDL-apheresis. The procedure reduced total cholesterol (TC), LDL-C, and apoB plasma levels (-69%, -80% and -74%, respectively), parameters only partially restored two days later. HDL-C and apoA-I plasma levels, reduced after LDL-apheresis (-27% and -16%, respectively), were restored to almost normal levels two days later. LDL-apheresis reduced serum aqueous diffusion (AD) CEC, SR-BI-CEC, and ABCA1-CEC. AD and SR-BI were fully restored whereas ABCA1-CEC remained low two days later. Sera immediately and two days after LDL-apheresis had a lower CLC than pre-LDL-apheresis sera. In conclusion, LDL-apheresis transiently reduces HDL-C levels and serum CEC, but it also reduces also serum capacity to deliver cholesterol to macrophages. Despite a potentially negative effect on HDL levels and composition, LDL-apheresis may counteract foam cells formation.
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Affiliation(s)
- M P Adorni
- Department of Pharmacological and Biological Sciences and Applied Chemistries, University of Parma, Parma, Italy
| | - F Zimetti
- Department of Pharmacological and Biological Sciences and Applied Chemistries, University of Parma, Parma, Italy
| | - M Puntoni
- Department of Pharmacological and Biological Sciences and Applied Chemistries, CNR Institute of Clinical Physiology, Pisa, Italy
| | - F Bigazzi
- Department of Pharmacological and Biological Sciences and Applied Chemistries, Dyslipidemias and Atherosclerosis Laboratory, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - F Sbrana
- Department of Pharmacological and Biological Sciences and Applied Chemistries, Dyslipidemias and Atherosclerosis Laboratory, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - F Minichilli
- Department of Pharmacological and Biological Sciences and Applied Chemistries, CNR Institute of Clinical Physiology, Pisa, Italy
| | - F Bernini
- Department of Pharmacological and Biological Sciences and Applied Chemistries, University of Parma, Parma, Italy.
| | - N Ronda
- Department of Pharmacological and Biological Sciences and Applied Chemistries, University of Parma, Parma, Italy
| | - E Favari
- Department of Pharmacological and Biological Sciences and Applied Chemistries, University of Parma, Parma, Italy
| | - T Sampietro
- Department of Pharmacological and Biological Sciences and Applied Chemistries, CNR Institute of Clinical Physiology, Pisa, Italy; Department of Pharmacological and Biological Sciences and Applied Chemistries, Dyslipidemias and Atherosclerosis Laboratory, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
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Habibi N, Pastorino L, Soumetz FC, Sbrana F, Raiteri R, Ruggiero C. Nanoengineered polymeric S-layers based capsules with targeting activity. Colloids Surf B Biointerfaces 2011; 88:366-72. [DOI: 10.1016/j.colsurfb.2011.07.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 05/24/2011] [Accepted: 07/05/2011] [Indexed: 11/28/2022]
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Sbrana F, Lorusso M, Canale C, Bochicchio B, Vassalli M. Effect of chemical cross-linking on the mechanical properties of elastomeric peptides studied by single molecule force spectroscopy. J Biomech 2011; 44:2118-22. [PMID: 21663916 DOI: 10.1016/j.jbiomech.2011.05.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 04/15/2011] [Accepted: 05/18/2011] [Indexed: 10/18/2022]
Abstract
Mechanical properties of animal tissues are mainly provided by the assembly of single elastomeric proteins into a complex network of filaments. Even if the overall elastic properties of such a reticulated structure depend on the mechanical characteristics of the constituents, it is not the only aspect to be considered. In addition, the aggregation mechanism has to be clarified to attain a full knowledge of the molecular basis of the elastic properties of natural nanostructured materials. This aim is even more crucial in the process of rational design of biomaterials with selected mechanical properties, in which not only the mechanics of single molecules but also of their assemblies has to be cared of. In this study, this aspect was approached by means of single molecule stretching experiments. In particular, the effect of chemical cross-linking on the mechanical properties of a naturally inspired elastomeric peptide was investigated. Accordingly, we observed that, in order to preserve the elastic properties of the single filament, the two strands of the dimer have to interact with each other. The results thus confirm that the influence of the aggregation process on the mechanical properties of a molecular assembly cannot be neglected.
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Affiliation(s)
- Francesca Sbrana
- Institute of Biophysics, National Research Council of Italy (CNR), Genova, Italy
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44
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Sbrana F, Di Paolo A, Pasanisi EM, Tagliaferri E, Arvia C, Puntoni M, Leonildi A, Bigazzi F, Danesi R, Rovai D, Tascini C, Menichetti F. Administration interval and daptomycin toxicity: a case report of rhabdomyolysis. J Chemother 2011; 22:434-5. [PMID: 21303756 DOI: 10.1179/joc.2010.22.6.434] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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45
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Sbrana F, Puntoni M, Bigazzi F, Margelli M, Petersen C, Bonini R, Sampietro T. 113 POLIDISTRECTUAL VASCULAR INVOLVEMENT IN FAMILIAL HYPERCHILOMICRONEMIA. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70114-3] [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: 10/18/2022]
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46
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Puntoni M, Sbrana F, Bigazzi F, Minichilli F, Sampietro T. 112 COMPARATIVE EFFECT OF APHERESIS VS ATORVASTATIN/APHERESIS ON MARKERS OF INFLAMMATION IN PATIENTS WITH FAMILIAL HYPERCHOLESTEROLEMIA. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70113-1] [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: 11/28/2022]
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47
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Favari E, Adorni M, Sbrana F, Puntoni M, Bigazzi F, Zimetti F, Bernini F, Sampietro T. 195 CHOLESTEROL EFFLUX POTENTIAL OF SERA FROM PATIENTS BEFORE AND AFTER LDL-APHERESIS. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70196-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Puntoni M, Boccardi C, Sbrana F, Rocchiccioli S, Bigazzi F, Citti L, Sampietro T. 202 TANGIER DISEASE: A PLASMA PROTEOME APPROACH. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70203-3] [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: 11/28/2022]
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49
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Marchetti S, Sbrana F, Toscano A, Fratini E, Carlà M, Vassalli M, Tiribilli B, Pacini A, Gambi CMC. β-Connectin studies by small-angle x-ray scattering and single-molecule force spectroscopy by atomic force microscopy. Phys Rev E Stat Nonlin Soft Matter Phys 2011; 83:051919. [PMID: 21728583 DOI: 10.1103/physreve.83.051919] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 04/12/2011] [Indexed: 05/31/2023]
Abstract
The three-dimensional structure and the mechanical properties of a β-connectin fragment from human cardiac muscle, belonging to the I band, from I(27) to I(34), were investigated by small-angle x-ray scattering (SAXS) and single-molecule force spectroscopy (SMFS). This molecule presents an entropic elasticity behavior, associated to globular domain unfolding, that has been widely studied in the last 10 years. In addition, atomic force microscopy based SMFS experiments suggest that this molecule has an additional elastic regime, for low forces, probably associated to tertiary structure remodeling. From a structural point of view, this behavior is a mark of the fact that the eight domains in the I(27)-I(34) fragment are not independent and they organize in solution, assuming a well-defined three-dimensional structure. This hypothesis has been confirmed by SAXS scattering, both on a diluted and a concentrated sample. Two different models were used to fit the SAXS curves: one assuming a globular shape and one corresponding to an elongated conformation, both coupled with a Coulomb repulsion potential to take into account the protein-protein interaction. Due to the predominance of the structure factor, the effective shape of the protein in solution could not be clearly disclosed. By performing SMFS by atomic force microscopy, mechanical unfolding properties were investigated. Typical sawtooth profiles were obtained and the rupture force of each unfolding domain was estimated. By fitting a wormlike chain model to each peak of the sawtooth profile, the entropic elasticity of octamer was described.
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Affiliation(s)
- S Marchetti
- Department of Physics, University of Florence and CNISM, Sesto Fiorentino (Florence), Italy
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Iacomino G, Picariello G, Sbrana F, Di Luccia A, Raiteri R, D’Agostino L. DNA is Wrapped by the Nuclear Aggregates of Polyamines: The Imaging Evidence. Biomacromolecules 2011; 12:1178-86. [DOI: 10.1021/bm101478j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Giuseppe Iacomino
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
| | - Gianluca Picariello
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
| | - Francesca Sbrana
- Dipartimento di Ingegneria Biofisica ed Elettronica, Università degli Studi di Genova, via all'Opera Pia 11a, 16145 Genova, Italy
| | - Aldo Di Luccia
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
- Dipartimento di Scienze degli Alimenti, Università degli Studi di Foggia, via Napoli 25, 71122 Foggia, Italy
| | - Roberto Raiteri
- Dipartimento di Ingegneria Biofisica ed Elettronica, Università degli Studi di Genova, via all'Opera Pia 11a, 16145 Genova, Italy
| | - Luciano D’Agostino
- Istituto di Scienze dell’Alimentazione, CNR, via Roma 64, 83100 Avellino, Italy
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