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Fais G, Casula M, Sidorowicz A, Manca A, Margarita V, Fiori PL, Pantaleo A, Caboni P, Cao G, Concas A. Cultivation of Chroococcidiopsis thermalis Using Available In Situ Resources to Sustain Life on Mars. Life (Basel) 2024; 14:251. [PMID: 38398760 PMCID: PMC10889959 DOI: 10.3390/life14020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/06/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
The cultivation of cyanobacteria by exploiting available in situ resources represents a possible way to supply food and oxygen to astronauts during long-term crewed missions on Mars. Here, we evaluated the possibility of cultivating the extremophile cyanobacterium Chroococcidiopsis thermalis CCALA 050 under operating conditions that should occur within a dome hosting a recently patented process to produce nutrients and oxygen on Mars. The medium adopted to cultivate this cyanobacterium, named Martian medium, was obtained using a mixture of regolith leachate and astronauts' urine simulants that would be available in situ resources whose exploitation could reduce the mission payload. The results demonstrated that C. thermalis can grow in such a medium. For producing high biomass, the best medium consisted of specific percentages (40%vol) of Martian medium and a standard medium (60%vol). Biomass produced in such a medium exhibits excellent antioxidant properties and contains significant amounts of pigments. Lipidomic analysis demonstrated that biomass contains strategic lipid classes able to help the astronauts facing the oxidative stress and inflammatory phenomena taking place on Mars. These characteristics suggest that this strain could serve as a valuable nutritional resource for astronauts.
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Affiliation(s)
- Giacomo Fais
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (M.C.); (A.S.); (G.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
| | - Mattia Casula
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (M.C.); (A.S.); (G.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
| | - Agnieszka Sidorowicz
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (M.C.); (A.S.); (G.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
| | - Alessia Manca
- Department of Biomedical Science, University of Sassari, Viale San Pietro, 07100 Sassari, Italy; (A.M.); (V.M.); (P.L.F.); (A.P.)
| | - Valentina Margarita
- Department of Biomedical Science, University of Sassari, Viale San Pietro, 07100 Sassari, Italy; (A.M.); (V.M.); (P.L.F.); (A.P.)
| | - Pier Luigi Fiori
- Department of Biomedical Science, University of Sassari, Viale San Pietro, 07100 Sassari, Italy; (A.M.); (V.M.); (P.L.F.); (A.P.)
| | - Antonella Pantaleo
- Department of Biomedical Science, University of Sassari, Viale San Pietro, 07100 Sassari, Italy; (A.M.); (V.M.); (P.L.F.); (A.P.)
| | - Pierluigi Caboni
- Department of Life and Environmental Sciences, University of Cagliari, 09042 Cagliari, Italy;
| | - Giacomo Cao
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (M.C.); (A.S.); (G.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
- Center for Advanced Studies, Research and Development in Sardinia (CRS4), Loc. Piscina Manna, Building 1, 09050 Pula, Italy
| | - Alessandro Concas
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (M.C.); (A.S.); (G.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
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Pala R, Cruciani S, Manca A, Garroni G, El Faqir MA, Lentini V, Capobianco G, Pantaleo A, Maioli M. Mesenchymal Stem Cell Behavior under Microgravity: From Stress Response to a Premature Senescence. Int J Mol Sci 2023; 24:ijms24097753. [PMID: 37175460 PMCID: PMC10178040 DOI: 10.3390/ijms24097753] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Mesenchymal stem cells are undifferentiated cells able to acquire different phenotypes under specific stimuli. Wharton's jelly is a tissue in the umbilical cord that contains mesenchymal stromal cells (MSCs) with a high plasticity and differentiation potential. Their regeneration capability is compromised by cell damage and aging. The main cause of cell damage is oxidative stress coming from an imbalance between oxidant and antioxidant species. Microgravity represents a stressing condition able to induce ROS production, ultimately leading to different subcellular compartment damages. Here, we analyzed molecular programs of stemness (Oct-4; SOX2; Nanog), cell senescence, p19, p21 (WAF1/CIP1), p53, and stress response in WJ-MSCs exposed to microgravity. From our results, we can infer that a simulated microgravity environment is able to influence WJ-MSC behavior by modulating the expression of stress and stemness-related genes, cell proliferation regulators, and both proapoptotic and antiapoptotic genes. Our results suggest a cellular adaptation addressed to survival occurring during the first hours of simulated microgravity, followed by a loss of stemness and proliferation capability, probably related to the appearance of a molecular program of senescence.
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Affiliation(s)
- Renzo Pala
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Sara Cruciani
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Alessia Manca
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Giuseppe Garroni
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Mohammed Amine El Faqir
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Veronica Lentini
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Giampiero Capobianco
- Department of Medical, Surgical and Experimental Sciences, Gynecologic and Obstetric Clinic, University of Sassari, 07100 Sassari, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
| | - Margherita Maioli
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
- Center for Developmental Biology and Reprogramming (CEDEBIOR), Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy
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Mariottini GL, Benfante N, Bridelli MG, Cappello F, Faggio C, Messina C, Pantaleo A, Rabino Massa E. In memory of Prof. Massimo Cocchi, past president and honorary president of the Italian Society for Experimental Biology (Società Italiana di Biologia Sperimentale - SIBS). J Biol Res 2022. [DOI: 10.4081/jbr.2022.10938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Prof. Massimo Cocchi, one of the most experienced scientists in nutritional biochemistry, past and honorary President of the Italian Society for Experimental Biology (Società Italiana di Biologia Sperimentale), passed away on May 19th, 2022, in his house in San Lazzaro di Savena (Bologna). He was a man of the highest value both from the scientific and from the human point of view. He was a landmark for a lot of students, as well as for his friends and colleagues who always appreciated his high moral standing and his immeasurable competence not only in the scientific field which was the subject of his work during all life, but also in many other fields of biology and medicine, so that anyone who met him could always receive a suggestion or a reliable scientific opinion. [...]
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Sidorowicz A, Margarita V, Fais G, Pantaleo A, Manca A, Concas A, Rappelli P, Fiori PL, Cao G. Characterization of nanomaterials synthesized from Spirulina platensis extract and their potential antifungal activity. PLoS One 2022; 17:e0274753. [PMID: 36112659 PMCID: PMC9481030 DOI: 10.1371/journal.pone.0274753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 09/05/2022] [Indexed: 11/19/2022] Open
Abstract
Nowadays, fungal infections increase, and the demand of novel antifungal agents is constantly rising. In the present study, silver, titanium dioxide, cobalt (II) hydroxide and cobalt (II,III) oxide nanomaterials have been synthesized from Spirulina platensis extract. The synthesis mechanism has been studied using GCMS and FTIR thus confirming the involvement of secondary metabolites, mainly amines. The obtained products have been analysed using XRD, SEM, TGA and zeta potential techniques. The findings revealed average crystallite size of 15.22 nm with 9.72 nm for oval-shaped silver nanoparticles increasing to 26.01 nm and 24.86 nm after calcination and 4.81 nm for spherical-shaped titanium dioxide nanoparticles which decreased to 4.62 nm after calcination. Nanoflake shape has been observed for cobalt hydroxide nanomaterials and for cobalt (II, III) oxide with crystallite size of 3.52 nm and 13.28 nm, respectively. Silver nanoparticles showed the best thermal and water dispersion stability of all the prepared structures. Once subjected to three different Candida species (C. albicans, C. glabrata, and C. krusei) silver nanoparticles and cobalt (II) hydroxide nanomaterials showed strong antifungal activity at 50 μg/mL with minimum inhibitory concentration (MIC) values. After light exposition, MIC values for nanomaterials decreased (to 12.5 μg/mL) for C. krusei and increased (100 μg/mL) for C. albicans and C. glabrata.
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Affiliation(s)
- Agnieszka Sidorowicz
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Cagliari, Italy
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Piazza d’Armi, Cagliari, Italy
| | | | - Giacomo Fais
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Cagliari, Italy
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Piazza d’Armi, Cagliari, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Alessia Manca
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Alessandro Concas
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Cagliari, Italy
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Piazza d’Armi, Cagliari, Italy
| | - Paola Rappelli
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- Mediterranean Center for Disease Control, Sassari, Italy
| | - Pier Luigi Fiori
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- Mediterranean Center for Disease Control, Sassari, Italy
- * E-mail: (PLF); (GC)
| | - Giacomo Cao
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Cagliari, Italy
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Piazza d’Armi, Cagliari, Italy
- * E-mail: (PLF); (GC)
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Manis C, Manca A, Murgia A, Uras G, Caboni P, Congiu T, Faa G, Pantaleo A, Cao G. Understanding the Behaviour of Human Cell Types under Simulated Microgravity Conditions: The Case of Erythrocytes. Int J Mol Sci 2022; 23:ijms23126876. [PMID: 35743319 PMCID: PMC9224527 DOI: 10.3390/ijms23126876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/09/2022] [Accepted: 06/15/2022] [Indexed: 12/10/2022] Open
Abstract
Erythrocytes are highly specialized cells in human body, and their main function is to ensure the gas exchanges, O2 and CO2, within the body. The exposure to microgravity environment leads to several health risks such as those affecting red blood cells. In this work, we investigated the changes that occur in the structure and function of red blood cells under simulated microgravity, compared to terrestrial conditions, at different time points using biochemical and biophysical techniques. Erythrocytes exposed to simulated microgravity showed morphological changes, a constant increase in reactive oxygen species (ROS), a significant reduction in total antioxidant capacity (TAC), a remarkable and constant decrease in total glutathione (GSH) concentration, and an augmentation in malondialdehyde (MDA) at increasing times. Moreover, experiments were performed to evaluate the lipid profile of erythrocyte membranes which showed an upregulation in the following membrane phosphocholines (PC): PC16:0_16:0, PC 33:5, PC18:2_18:2, PC 15:1_20:4 and SM d42:1. Thus, remarkable changes in erythrocyte cytoskeletal architecture and membrane stiffness due to oxidative damage have been found under microgravity conditions, in addition to factors that contribute to the plasticity of the red blood cells (RBCs) including shape, size, cell viscosity and membrane rigidity. This study represents our first investigation into the effects of microgravity on erythrocytes and will be followed by other experiments towards understanding the behaviour of different human cell types in microgravity.
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Affiliation(s)
- Cristina Manis
- Department of Life and Environmental Sciences, Cittadella Universitaria di Monserrato, 09042 Monserrato, Italy; (C.M.); (A.M.); (P.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Piazza d’Armi, 09123 Cagliari, Italy
| | - Alessia Manca
- Department of Biomedical Science, University of Sassari, Viale San Pietro, 07100 Sassari, Italy;
| | - Antonio Murgia
- Department of Life and Environmental Sciences, Cittadella Universitaria di Monserrato, 09042 Monserrato, Italy; (C.M.); (A.M.); (P.C.)
| | - Giuseppe Uras
- Department of Clinical and Movement Neurosciences, Institute of Neurology, University of College London, London NW3 2PF, UK;
| | - Pierluigi Caboni
- Department of Life and Environmental Sciences, Cittadella Universitaria di Monserrato, 09042 Monserrato, Italy; (C.M.); (A.M.); (P.C.)
| | - Terenzio Congiu
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato’s Campus, 09042 Monserrato, Italy; (T.C.); (G.F.)
| | - Gavino Faa
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato’s Campus, 09042 Monserrato, Italy; (T.C.); (G.F.)
| | - Antonella Pantaleo
- Department of Biomedical Science, University of Sassari, Viale San Pietro, 07100 Sassari, Italy;
- Correspondence: (A.P.); (G.C.)
| | - Giacomo Cao
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Piazza d’Armi, 09123 Cagliari, Italy
- Center of Advanced Studies, Research and Development in Sardinia (CRS4), Loc. Piscina Manna, Building 1, 09050 Pula, Italy
- Sardinia AeroSpace District (DASS), at Sardegna Ricerche, Via G. Carbonazzi 14, 09123 Cagliari, Italy
- Correspondence: (A.P.); (G.C.)
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Fais G, Manca A, Bolognesi F, Borselli M, Concas A, Busutti M, Broggi G, Sanna P, Castillo-Aleman YM, Rivero-Jiménez RA, Bencomo-Hernandez AA, Ventura-Carmenate Y, Altea M, Pantaleo A, Gabrielli G, Biglioli F, Cao G, Giannaccare G. Wide Range Applications of Spirulina: From Earth to Space Missions. Mar Drugs 2022; 20:md20050299. [PMID: 35621951 PMCID: PMC9143897 DOI: 10.3390/md20050299] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 02/05/2023] Open
Abstract
Spirulina is the most studied cyanobacterium species for both pharmacological applications and the food industry. The aim of the present review is to summarize the potential benefits of the use of Spirulina for improving healthcare both in space and on Earth. Regarding the first field of application, Spirulina could represent a new technology for the sustainment of long-duration manned missions to planets beyond the Lower Earth Orbit (e.g., Mars); furthermore, it could help astronauts stay healthy while exposed to a variety of stress factors that can have negative consequences even after years. As far as the second field of application, Spirulina could have an active role in various aspects of medicine, such as metabolism, oncology, ophthalmology, central and peripheral nervous systems, and nephrology. The recent findings of the capacity of Spirulina to improve stem cells mobility and to increase immune response have opened new intriguing scenarios in oncological and infectious diseases, respectively.
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Affiliation(s)
- Giacomo Fais
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (A.C.); (G.C.)
| | - Alessia Manca
- Department of Biomedical Science, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (A.M.); (A.P.)
| | - Federico Bolognesi
- Unit of Maxillofacial Surgery, Head and Neck Department, ASST Santi Paolo e Carlo Hospital, University of Milan, Via Antonio di Rudinì 8, 20142 Milan, Italy; (F.B.); (F.B.)
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Zamboni 33, 40126 Bologna, Italy
| | - Massimiliano Borselli
- Department of Ophthalmology, University Magna Grecia of Catanzaro, Viale Europa, 88100 Catanzaro, Italy;
| | - Alessandro Concas
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (A.C.); (G.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
| | - Marco Busutti
- Nephrology, Dialysis and Transplant Unit, IRCCS-Azienda Ospedaliero Universitaria di Bologna, University of Bologna, Via Giuseppe Massarenti 9, 40138 Bologna, Italy;
| | - Giovanni Broggi
- Department of Neurosurgery, Fondazione IRCCS Istituto Neurologico Carlo Besta, University of Milan, Via Celoria 11, 20133 Milan, Italy;
- Columbus Clinic Center, Via Michelangelo Buonarroti 48, 20145 Milan, Italy
| | - Pierdanilo Sanna
- Abu Dhabi Stem Cells Center, Al Misaha Street, Rowdhat, Abu Dhabi, United Arab Emirates; (P.S.); (Y.M.C.-A.); (R.A.R.-J.); (A.A.B.-H.); (Y.V.-C.)
| | - Yandy Marx Castillo-Aleman
- Abu Dhabi Stem Cells Center, Al Misaha Street, Rowdhat, Abu Dhabi, United Arab Emirates; (P.S.); (Y.M.C.-A.); (R.A.R.-J.); (A.A.B.-H.); (Y.V.-C.)
| | - René Antonio Rivero-Jiménez
- Abu Dhabi Stem Cells Center, Al Misaha Street, Rowdhat, Abu Dhabi, United Arab Emirates; (P.S.); (Y.M.C.-A.); (R.A.R.-J.); (A.A.B.-H.); (Y.V.-C.)
| | - Antonio Alfonso Bencomo-Hernandez
- Abu Dhabi Stem Cells Center, Al Misaha Street, Rowdhat, Abu Dhabi, United Arab Emirates; (P.S.); (Y.M.C.-A.); (R.A.R.-J.); (A.A.B.-H.); (Y.V.-C.)
| | - Yendry Ventura-Carmenate
- Abu Dhabi Stem Cells Center, Al Misaha Street, Rowdhat, Abu Dhabi, United Arab Emirates; (P.S.); (Y.M.C.-A.); (R.A.R.-J.); (A.A.B.-H.); (Y.V.-C.)
| | - Michela Altea
- TOLO Green, Via San Damiano 2, 20122 Milan, Italy; (M.A.); (G.G.)
| | - Antonella Pantaleo
- Department of Biomedical Science, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy; (A.M.); (A.P.)
| | | | - Federico Biglioli
- Unit of Maxillofacial Surgery, Head and Neck Department, ASST Santi Paolo e Carlo Hospital, University of Milan, Via Antonio di Rudinì 8, 20142 Milan, Italy; (F.B.); (F.B.)
| | - Giacomo Cao
- Interdepartmental Centre of Environmental Science and Engineering (CINSA), University of Cagliari, Via San Giorgio 12, 09124 Cagliari, Italy; (G.F.); (A.C.); (G.C.)
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
- Center for Advanced Studies, Research and Development in Sardinia (CRS4), Loc. Piscina Manna, Building 1, 09050 Pula, Italy
| | - Giuseppe Giannaccare
- Department of Ophthalmology, University Magna Grecia of Catanzaro, Viale Europa, 88100 Catanzaro, Italy;
- Correspondence: ; Tel.: +39-3317186201
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Tsamesidis I, Mousavizadeh F, Egwu CO, Amanatidou D, Pantaleo A, Benoit-Vical F, Reybier K, Giannis A. In Vitro and In Silico Antimalarial Evaluation of FM-AZ, a New Artemisinin Derivative. Medicines (Basel) 2022; 9:medicines9020008. [PMID: 35200752 PMCID: PMC8880451 DOI: 10.3390/medicines9020008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/17/2022] [Accepted: 01/17/2022] [Indexed: 11/16/2022]
Abstract
Artemisinin-based Combination Therapies (ACTs) are currently the frontline treatment against Plasmodium falciparum malaria, but parasite resistance to artemisinin (ART) and its derivatives, core components of ACTs, is spreading in the Mekong countries. In this study, we report the synthesis of several novel artemisinin derivatives and evaluate their in vitro and in silico capacity to counteract Plasmodium falciparum artemisinin resistance. Furthermore, recognizing that the malaria parasite devotes considerable resources to minimizing the oxidative stress that it creates during its rapid consumption of hemoglobin and the release of heme, we sought to explore whether further augmentation of this oxidative toxicity might constitute an important addition to artemisinins. The present report demonstrates, in vitro, that FM-AZ, a newly synthesized artemisinin derivative, has a lower IC50 than artemisinin in P. falciparum and a rapid action in killing the parasites. The docking studies for important parasite protein targets, PfATP6 and PfHDP, complemented the in vitro results, explaining the superior IC50 values of FM-AZ in comparison with ART obtained for the ART-resistant strain. However, cross-resistance between FM-AZ and artemisinins was evidenced in vitro.
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Affiliation(s)
- Ioannis Tsamesidis
- UMR 152 Pharma-Dev, Universite de Toulouse III, IRD, UPS, 31400 Toulouse, France; (C.O.E.); (K.R.)
- Department of Biomedical Sciences, School of Health, International Hellenic University, 57400 Thessaloniki, Greece;
- Correspondence: (I.T.); (A.G.)
| | - Farnoush Mousavizadeh
- Institute for Organic Chemistry, University of Leipzig, Johannisallee 29, 04301 Leipzig, Germany;
| | - Chinedu O. Egwu
- UMR 152 Pharma-Dev, Universite de Toulouse III, IRD, UPS, 31400 Toulouse, France; (C.O.E.); (K.R.)
- Medical Biochemistry, College of Medicine, Alex-Ekwueme Federal University, Ndufu-Alike Ikwo, P.M.B. 1010, Abakaliki 482131, Nigeria
- Laboratoire de Chimie de Coordination, LCC—CNRS, Universite de Toulouse, 31077 Toulouse, France;
| | - Dionysia Amanatidou
- Department of Biomedical Sciences, School of Health, International Hellenic University, 57400 Thessaloniki, Greece;
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
| | - Françoise Benoit-Vical
- Laboratoire de Chimie de Coordination, LCC—CNRS, Universite de Toulouse, 31077 Toulouse, France;
| | - Karine Reybier
- UMR 152 Pharma-Dev, Universite de Toulouse III, IRD, UPS, 31400 Toulouse, France; (C.O.E.); (K.R.)
| | - Athanassios Giannis
- Institute for Organic Chemistry, University of Leipzig, Johannisallee 29, 04301 Leipzig, Germany;
- Correspondence: (I.T.); (A.G.)
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Chien HD, Pantaleo A, Kesely KR, Noomuna P, Putt KS, Tuan TA, Low PS, Turrini FM. Imatinib augments standard malaria combination therapy without added toxicity. J Exp Med 2021; 218:212603. [PMID: 34436509 PMCID: PMC8404470 DOI: 10.1084/jem.20210724] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/21/2021] [Accepted: 07/26/2021] [Indexed: 01/13/2023]
Abstract
To egress from its erythrocyte host, the malaria parasite, Plasmodium falciparum, must destabilize the erythrocyte membrane by activating an erythrocyte tyrosine kinase. Because imatinib inhibits erythrocyte tyrosine kinases and because imatinib has a good safety profile, we elected to determine whether coadministration of imatinib with standard of care (SOC) might be both well tolerated and therapeutically efficacious in malaria patients. Patients with uncomplicated P. falciparum malaria from a region in Vietnam where one third of patients experience delayed parasite clearance (DPC; continued parasitemia after 3 d of therapy) were treated for 3 d with either the region’s SOC (40 mg dihydroartemisinin + 320 mg piperaquine/d) or imatinib (400 mg/d) + SOC. Imatinib + SOC–treated participants exhibited no increase in number or severity of adverse events, a significantly accelerated decline in parasite density and pyrexia, and no DPC. Surprisingly, these improvements were most pronounced in patients with the highest parasite density, where serious complications and death are most frequent. Imatinib therefore appears to improve SOC therapy, with no obvious drug-related toxicities.
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Affiliation(s)
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | | | - Panae Noomuna
- Department of Chemistry, Purdue University, West Lafayette, IN
| | - Karson S Putt
- Institute for Drug Discovery, Purdue University, West Lafayette, IN
| | - Tran Anh Tuan
- Huong Hoa District Health Center, Quang Tri, Vietnam
| | - Philip S Low
- Department of Chemistry, Purdue University, West Lafayette, IN.,Institute for Drug Discovery, Purdue University, West Lafayette, IN
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9
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Barvitenko N, Aslam M, Lawen A, Saldanha C, Skverchinskaya E, Uras G, Manca A, Pantaleo A. Two Motors and One Spring: Hypothetic Roles of Non-Muscle Myosin II and Submembrane Actin-Based Cytoskeleton in Cell Volume Sensing. Int J Mol Sci 2021; 22:7967. [PMID: 34360739 PMCID: PMC8347689 DOI: 10.3390/ijms22157967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/16/2021] [Accepted: 07/23/2021] [Indexed: 12/12/2022] Open
Abstract
Changes in plasma membrane curvature and intracellular ionic strength are two key features of cell volume perturbations. In this hypothesis we present a model of the responsible molecular apparatus which is assembled of two molecular motors [non-muscle myosin II (NMMII) and protrusive actin polymerization], a spring [a complex between the plasma membrane (PM) and the submembrane actin-based cytoskeleton (smACSK) which behaves like a viscoelastic solid] and the associated signaling proteins. We hypothesize that this apparatus senses changes in both the plasma membrane curvature and the ionic strength and in turn activates signaling pathways responsible for regulatory volume increase (RVI) and regulatory volume decrease (RVD). During cell volume changes hydrostatic pressure (HP) changes drive alterations in the cell membrane curvature. HP difference has opposite directions in swelling versus shrinkage, thus allowing distinction between them. By analogy with actomyosin contractility that appears to sense stiffness of the extracellular matrix we propose that NMMII and actin polymerization can actively probe the transmembrane gradient in HP. Furthermore, NMMII and protein-protein interactions in the actin cortex are sensitive to ionic strength. Emerging data on direct binding to and regulating activities of transmembrane mechanosensors by NMMII and actin cortex provide routes for signal transduction from transmembrane mechanosensors to cell volume regulatory mechanisms.
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Affiliation(s)
| | - Muhammad Aslam
- Department of Internal Medicine I, Experimental Cardiology, Justus Liebig University, 35392 Giessen, Germany;
| | - Alfons Lawen
- Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC 3800, Australia;
| | - Carlota Saldanha
- Institute of Biochemistry, Institute of Molecular Medicine, Faculty of Medicine University of Lisbon, 1649-028 Lisboa, Portugal;
| | | | - Giuseppe Uras
- Department of Clinical and Movement Neurosciences, Institute of Neurology, University College London, London NW3 2PF, UK;
| | - Alessia Manca
- Department of Biomedical Science, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy;
| | - Antonella Pantaleo
- Department of Biomedical Science, University of Sassari, Viale San Pietro 43/B, 07100 Sassari, Italy;
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10
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Kesely K, Noomuna P, Vieth M, Hipskind P, Haldar K, Pantaleo A, Turrini F, Low PS. Identification of tyrosine kinase inhibitors that halt Plasmodium falciparum parasitemia. PLoS One 2020; 15:e0242372. [PMID: 33180822 PMCID: PMC7660480 DOI: 10.1371/journal.pone.0242372] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 10/31/2020] [Indexed: 01/23/2023] Open
Abstract
Although current malaria therapies inhibit pathways encoded in the parasite’s genome, we have looked for anti-malaria drugs that can target an erythrocyte component because development of drug resistance might be suppressed if the parasite cannot mutate the drug’s target. In search for such erythrocyte targets, we noted that human erythrocytes express tyrosine kinases, whereas the Plasmodium falciparum genome encodes no obvious tyrosine kinases. We therefore screened a library of tyrosine kinase inhibitors from Eli Lilly and Co. in a search for inhibitors with possible antimalarial activity. We report that although most tyrosine kinase inhibitors exerted no effect on parasite survival, a subset of tyrosine kinase inhibitors displayed potent anti-malarial activity. Moreover, all inhibitors found to block tyrosine phosphorylation of band 3 specifically suppressed P. falciparum survival at the parasite egress stage of its intra-erythrocyte life cycle. Conversely, tyrosine kinase inhibitors that failed to block band 3 tyrosine phosphorylation but still terminated the parasitemia were observed to halt parasite proliferation at other stages of the parasite’s life cycle. Taken together these results suggest that certain erythrocyte tyrosine kinases may be important to P. falciparum maturation and that inhibitors that block these kinases may contribute to novel therapies for P. falciparum malaria.
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Affiliation(s)
- Kristina Kesely
- Department of Chemistry, Purdue University, West Lafayette, IN, United States of America.,Institute for Drug Discovery, Purdue University, West Lafayette, IN, United States of America
| | - Panae Noomuna
- Department of Chemistry, Purdue University, West Lafayette, IN, United States of America.,Institute for Drug Discovery, Purdue University, West Lafayette, IN, United States of America
| | - Michal Vieth
- Eli Lilly and Company, San Diego, CA, United States of America
| | - Philip Hipskind
- School of Medicine, Indiana University, Bloomington, IN, United States of America.,Clinical Pharmacology R2 402 MDEP, Indianapolis, IN, United States of America
| | - Kasturi Haldar
- Galvin Life Science Center, University of Notre Dame, Notre Dame, IN, United States of America
| | | | | | - Philip S Low
- Department of Chemistry, Purdue University, West Lafayette, IN, United States of America.,Institute for Drug Discovery, Purdue University, West Lafayette, IN, United States of America
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11
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Avitabile E, Senes N, D’Avino C, Tsamesidis I, Pinna A, Medici S, Pantaleo A. The potential antimalarial efficacy of hemocompatible silver nanoparticles from Artemisia species against P. falciparum parasite. PLoS One 2020; 15:e0238532. [PMID: 32870934 PMCID: PMC7462267 DOI: 10.1371/journal.pone.0238532] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022] Open
Abstract
Malaria represents one of the most common infectious diseases which becoming an impellent public health problem worldwide. Antimalarial classical medications include quinine-based drugs, like chloroquine, and artesunate, a derivative of artemisinin, a molecule found in the plant Artemisia annua. Such therapeutics are very effective but show heavy side effects like drug resistance. In this study, "green" silver nanoparticles (AgNPs) have been prepared from two Artemisia species (A. abrotanum and A. arborescens), traditionally used in folk medicine as a remedy for different conditions, and their potential antimalarial efficacy have been assessed. AgNPs have been characterized by UV-Vis, dynamic light scattering and zeta potential, FTIR, XRD, TEM and EDX. The structural characterization has demonstrated the spheroidal shape of nanoparticles and dimensions under 50 nm, useful for biomedical studies. Zeta potential analysis have shown the stability and dispersion of green AgNPs in aqueous medium without aggregation. AgNPs hemocompatibility and antimalarial activity have been studied in Plasmodium falciparum cultures in in vitro experiments. The antiplasmodial effect has been assessed using increasing doses of AgNPs (0.6 to 7.5 μg/mL) on parasitized red blood cells (pRBCs). Obtained data showed that the hemocompatibility of AgNPs is related to their synthetic route and depends on the administered dose. A. abrotanum-AgNPs (1) have shown the lowest percentage of hemolytic activity on pRBCs, underlining their hemocompatibility. These results are in accordance with the lower levels of parasitemia observed after A. abrotanum-AgNPs (1) treatment respect to A. arborescens-AgNPs (2), and AgNPs (3) derived from a classical chemical synthesis. Moreover, after 24 and 48 hours of A. abrotanum-AgNPs (1) treatment, the parasite growth was locked in the ring stage, evidencing the effect of these nanoparticles to hinder the maturation of P. falciparum. The anti-malarial activity of A. abrotanum-AgNPs (1) on pRBCs was demonstrated to be higher than that of A. arborescens-AgNPs (2).
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Affiliation(s)
| | - Nina Senes
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Cristina D’Avino
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | | | - Alessandra Pinna
- Department of Materials, Imperial College London, London, United Kingdom
| | - Serenella Medici
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
- * E-mail: (SM); (AP)
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- * E-mail: (SM); (AP)
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12
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Mattè A, Lupo F, Tibaldi E, Di Paolo ML, Federti E, Carpentieri A, Pucci P, Brunati AM, Cesaro L, Turrini F, Gomez Manzo S, Choi SY, Marcial Quino J, Kim DW, Pantaleo A, Xiuli A, Iatcenko I, Cappellini MD, Forni GL, De Franceschi L. Fyn specifically Regulates the activity of red cell glucose-6-phosphate-dehydrogenase. Redox Biol 2020; 36:101639. [PMID: 32863204 PMCID: PMC7387845 DOI: 10.1016/j.redox.2020.101639] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 06/05/2020] [Accepted: 07/05/2020] [Indexed: 01/22/2023] Open
Abstract
Fyn is a tyrosine kinase belonging to the Src family (Src-Family-Kinase, SFK), ubiquitously expressed. Previously, we report that Fyn is important in stress erythropoiesis. Here, we show that in red cells Fyn specifically stimulates G6PD activity, resulting in a 3-fold increase enzyme catalytic activity (kcat) by phosphorylating tyrosine (Tyr)-401. We found Tyr-401 on G6PD as functional target of Fyn in normal human red blood cells (RBC), being undetectable in G6PD deficient RBCs (G6PD-Mediterranean and G6PD-Genova). Indeed, Tyr-401 is located to a region of the G6PD molecule critical for the formation of the enzymatically active dimer. Amino acid replacements in this region are mostly associated with a chronic hemolysis phenotype. Using mutagenesis approach, we demonstrated that the phosphorylation status of Tyr401 modulates the interaction of G6PD with G6P and stabilizes G6PD in a catalytically more efficient conformation. RBCs from Fyn-/-mice are defective in G6PD activity, resulting in increased susceptibility to primaquine-induced intravascular hemolysis. This negatively affected the recycling of reduced Prx2 in response to oxidative stress, indicating that defective G6PD phosphorylation impairs defense against oxidation. In human RBCs, we confirm the involvement of the thioredoxin/Prx2 system in the increase vulnerability of G6PD deficient RBCs to oxidation. In conclusion, our data suggest that Fyn is an oxidative radical sensor, and that Fyn-mediated Tyr-401 phosphorylation, by increasing G6PD activity, plays an important role in the physiology of RBCs. Failure of G6PD activation by this mechanism may be a major limiting factor in the ability of G6PD deficient RBCs to withstand oxidative stress.
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Affiliation(s)
- Alessandro Mattè
- Dept of Medicine University of Verona and AOUI Verona, Verona, Italy
| | - Francesca Lupo
- Dept of Medicine University of Verona and AOUI Verona, Verona, Italy
| | - Elena Tibaldi
- Dept of Molecular Medicine, University of Padua, Padua, Italy
| | | | - Enrica Federti
- Dept of Medicine University of Verona and AOUI Verona, Verona, Italy
| | | | - Piero Pucci
- Dept of Chemical Sciences, University Federico II, Naples, Italy
| | | | - Luca Cesaro
- Dept of Molecular Medicine, University of Padua, Padua, Italy
| | | | - Saul Gomez Manzo
- Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, Mexico
| | - Soo Young Choi
- Institute of Bioscience and Biotechnology, Hallym University, Gangowo-do, South Korea
| | - Jaime Marcial Quino
- Consejo Nacional de Ciencia y Tecnology, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, Mexico
| | - Dae Won Kim
- Institute of Bioscience and Biotechnology, Hallym University, Gangowo-do, South Korea
| | | | - An Xiuli
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; Laboratory of Membrane Biology, New York Blood Center, New York, NY, USA
| | - Iana Iatcenko
- Dept of Medicine University of Verona and AOUI Verona, Verona, Italy
| | | | - Gian Luca Forni
- Centro Della Microcitemia e Delle Anemie Congenite, Ospedale Galliera, Genova, Italy
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13
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Tsamesidis I, Reybier K, Marchetti G, Pau MC, Virdis P, Fozza C, Nepveu F, Low PS, Turrini FM, Pantaleo A. Syk Kinase Inhibitors Synergize with Artemisinins by Enhancing Oxidative Stress in Plasmodium falciparum-Parasitized Erythrocytes. Antioxidants (Basel) 2020; 9:antiox9080753. [PMID: 32824055 PMCID: PMC7464437 DOI: 10.3390/antiox9080753] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/07/2020] [Accepted: 08/11/2020] [Indexed: 02/07/2023] Open
Abstract
Although artemisinin-based combination therapies (ACTs) treat Plasmodium falciparum malaria effectively throughout most of the world, the recent expansion of ACT-resistant strains in some countries of the Greater Mekong Subregion (GMS) further increased the interest in improving the effectiveness of treatment and counteracting resistance. Recognizing that (1) partially denatured hemoglobin containing reactive iron (hemichromes) is generated in parasitized red blood cells (pRBC) by oxidative stress, (2) redox-active hemichromes have the potential to enhance oxidative stress triggered by the parasite and the activation of artemisinin to its pharmaceutically active form, and (3) Syk kinase inhibitors block the release of membrane microparticles containing hemichromes, we hypothesized that increasing hemichrome content in parasitized erythrocytes through the inhibition of Syk kinase might trigger a virtuous cycle involving the activation of artemisinin, the enhancement of oxidative stress elicited by activated artemisinin, and a further increase in hemichrome production. We demonstrate here that artemisinin indeed augments oxidative stress within parasitized RBCs and that Syk kinase inhibitors further increase iron-dependent oxidative stress, synergizing with artemisinin in killing the parasite. We then demonstrate that Syk kinase inhibitors achieve this oxidative enhancement by preventing parasite-induced release of erythrocyte-derived microparticles containing redox-active hemichromes. We also observe that Syk kinase inhibitors do not promote oxidative toxicity to healthy RBCs as they do not produce appreciable amounts of hemichromes. Since some Syk kinase inhibitors can be taken daily with minimal side effects, we propose that Syk kinase inhibitors could evidently contribute to the potentiation of ACTs.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (I.T.); (G.M.); (M.C.P.)
- UMR 152 Pharma-Dev, Université de Toulouse, IRD, UPS, 31000 Toulouse, France; (K.R.); (F.N.)
| | - Karine Reybier
- UMR 152 Pharma-Dev, Université de Toulouse, IRD, UPS, 31000 Toulouse, France; (K.R.); (F.N.)
| | - Giuseppe Marchetti
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (I.T.); (G.M.); (M.C.P.)
| | - Maria Carmina Pau
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (I.T.); (G.M.); (M.C.P.)
| | - Patrizia Virdis
- Department of Clinical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (P.V.); (C.F.)
| | - Claudio Fozza
- Department of Clinical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy; (P.V.); (C.F.)
| | - Francoise Nepveu
- UMR 152 Pharma-Dev, Université de Toulouse, IRD, UPS, 31000 Toulouse, France; (K.R.); (F.N.)
| | - Philip S. Low
- Purdue Institute for Drug Discovery and Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA;
| | | | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (I.T.); (G.M.); (M.C.P.)
- Correspondence:
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14
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Tsamesidis I, Pério P, Pantaleo A, Reybier K. Oxidation of Erythrocytes Enhance the Production of Reactive Species in the Presence of Artemisinins. Int J Mol Sci 2020; 21:ijms21134799. [PMID: 32646002 PMCID: PMC7369783 DOI: 10.3390/ijms21134799] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/26/2020] [Accepted: 06/28/2020] [Indexed: 12/16/2022] Open
Abstract
In red blood cells, hemoglobin iron represents the most plausible candidate to catalyze artemisinin activation but the limited reactivity of iron bound to hemoglobin does not play in favor for its direct involvement. Denatured hemoglobin appears a more likely candidate for artemisinin redox activation because it is expected to contain reactive iron and it has been described to release free heme and/or iron in erythrocyte. The aim of our study is to investigate, using three different methods: fluorescence, electron paramagnetic resonance and liquid chromatography coupled to mass spectrometry, how increasing the level of accessible iron into the red blood cells can enhance the reactive oxygen species (ROS) production derived from artemisinin. The over-increase of iron was achieved using phenylhydrazine, a strong oxidant that causes oxidative stress within erythrocytes, resulting in oxidation of oxyhemoglobin and leading to the formation of methemoglobin, which is subsequently converted into irreversible hemichromes (iron (III) compounds). Our findings confirmed, using the iron III chelator, desferrioxamine, the indirect participation of iron (III) compounds in the activation process of artemisinins. Furthermore, in strong reducing conditions, the activation of artemisinin and the consequent production of ROS was enhanced. In conclusion, we demonstrate, through the measurement of intra-erythrocytic superoxide and hydrogen peroxide production using various methods, that artemisinin activation can be drastically enhanced by pre-oxidation of erythrocytes.
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Affiliation(s)
- Ioannis Tsamesidis
- Pharma-Dev UMR 152, Université de Toulouse, IRD, UPS, 31000 Toulouse, France; (P.P.); (K.R.)
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
- Correspondence:
| | - Pierre Pério
- Pharma-Dev UMR 152, Université de Toulouse, IRD, UPS, 31000 Toulouse, France; (P.P.); (K.R.)
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy;
| | - Karine Reybier
- Pharma-Dev UMR 152, Université de Toulouse, IRD, UPS, 31000 Toulouse, France; (P.P.); (K.R.)
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15
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Tsamesidis I, Kazeli K, Lymperaki E, Pouroutzidou GK, Oikonomou IM, Komninou P, Zachariadis G, Reybier K, Pantaleo A, Kontonasaki E. Effect of Sintering Temperature of Bioactive Glass Nanoceramics on the Hemolytic Activity and Oxidative Stress Biomarkers in Erythrocytes. Cell Mol Bioeng 2020; 13:201-218. [PMID: 32426058 PMCID: PMC7225217 DOI: 10.1007/s12195-020-00614-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 03/26/2020] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION The nature of the surface is critical in determining the biological activity of silica powders. A novel correlation between toxicity and surface properties of bioactive glass ceramics (BGCs) synthesized via the sol-gel method was attempted in this study. METHODS The behavior of BGCs after their attachment to the surface of red blood cells (RBCs) was evaluated and their toxic effects were determined based on hemolysis, membrane injury via anti-phosphotyrosine immunoblot of Band 3, lipid peroxidation, potential to generate reactive oxygen species, and antioxidant enzyme production. In particular, three BGCs were synthesized and treated at three sintering temperatures (T1 = 835 °C, T2 = 1000 °C and T3 = 1100 °C) to investigate possible relation between surface charge or structure and hemolytic potential. RESULTS Their toxicity based on hemolysis was dose dependent, while BGC-T2 had the best hemocompatibility in compare with the other BGCs.No BGCs in dosages lower than 0.125 mg/mL could damage erythrocytes. On the other hand, all BGCs promoted the production of reactive oxygen species in certain concentrations, with the BGC-T2 producing the lowest ROS and increasing the glutathione levels in RBCs protecting their damage. CONCLUSIONS The results suggest that various factors such as size, a probable different proportion of surface silanols, a balanced mechanism between calcium and magnesium cellular uptake or the different crystalline nature may have contributed to this finding; however, future research is needed to clarify the underlying mechanisms.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
- Present Address: Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, 31400 Toulouse, France
| | - Konstantina Kazeli
- Department of Biomedical Sciences, International Hellenic University, Thessaloníki, Greece
- Department of Medicine, Democritus University of Thrace, Alexandroupoli, Greece
| | - Evgenia Lymperaki
- Department of Biomedical Sciences, International Hellenic University, Thessaloníki, Greece
| | - Georgia K. Pouroutzidou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloníki, Greece
| | - Ilias M. Oikonomou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloníki, Greece
| | - Philomela Komninou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloníki, Greece
| | - George Zachariadis
- Department of Chemistry, Aristotle University, 54124 Thessaloníki, Greece
| | - Karine Reybier
- Present Address: Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, 31400 Toulouse, France
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloníki, Greece
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16
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Taylor WRJ, Kheng S, Muth S, Tor P, Kim S, Bjorge S, Topps N, Kosal K, Sothea K, Souy P, Char CM, Vanna C, Ly P, Khieu V, Christophel E, Kerleguer A, Pantaleo A, Mukaka M, Menard D, Baird JK. Hemolytic Dynamics of Weekly Primaquine Antirelapse Therapy Among Cambodians With Acute Plasmodium vivax Malaria With or Without Glucose-6-Phosphate Dehydrogenase Deficiency. J Infect Dis 2020; 220:1750-1760. [PMID: 31549159 PMCID: PMC6804333 DOI: 10.1093/infdis/jiz313] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/18/2019] [Indexed: 12/22/2022] Open
Abstract
Background Hemoglobin (Hb) data are limited in Southeast Asian glucose-6-phosphate dehydrogenase (G6PD) deficient (G6PD−) patients treated weekly with the World Health Organization–recommended primaquine regimen (ie, 0.75 mg/kg/week for 8 weeks [PQ 0.75]). Methods We treated Cambodians who had acute Plasmodium vivax infection with PQ0.75 and a 3-day course of dihydroartemisinin/piperaquine and determined the Hb level, reticulocyte count, G6PD genotype, and Hb type. Results Seventy-five patients (male sex, 63) aged 5–63 years (median, 24 years) were enrolled. Eighteen were G6PD deficient (including 17 with G6PD Viangchan) and 57 were not G6PD deficient; 26 had HbE (of whom 25 were heterozygous), and 6 had α-/β-thalassemia. Mean Hb concentrations at baseline (ie, day 0) were similar between G6PD deficient and G6PD normal patients (12.9 g/dL [range, 9‒16.3 g/dL] and 13.26 g/dL [range, 9.6‒16 g/dL], respectively; P = .46). G6PD deficiency (P = <.001), higher Hb concentration at baseline (P = <.001), higher parasitemia level at baseline (P = .02), and thalassemia (P = .027) influenced the initial decrease in Hb level, calculated as the nadir level minus the baseline level (range, −5.8–0 g/dL; mean, −1.88 g/dL). By day 14, the mean difference from the day 7 level (calculated as the day 14 level minus the day 7 level) was 0.03 g/dL (range, −0.25‒0.32 g/dL). Reticulocyte counts decreased from days 1 to 3, peaking on day 7 (in the G6PD normal group) and day 14 (in the G6PD deficient group); reticulocytemia at baseline (P = .001), G6PD deficiency (P = <.001), and female sex (P = .034) correlated with higher counts. One symptomatic, G6PD-deficient, anemic male patient was transfused on day 4. Conclusions The first PQ0.75 exposure was associated with the greatest decrease in Hb level and 1 blood transfusion, followed by clinically insignificant decreases in Hb levels. PQ0.75 requires monitoring during the week after treatment. Safer antirelapse regimens are needed in Southeast Asia. Clinical Trials Registration ACTRN12613000003774.
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Affiliation(s)
- Walter R J Taylor
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia.,Service de Médecine Tropicale et Humanitaire, Hôpitaux Universitaires de Genève, Switzerland.,Mahidol Oxford Tropical Medicine Research Unit, Bangkok, Thailand
| | - Sim Kheng
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Sinoun Muth
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Pety Tor
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Saorin Kim
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Steven Bjorge
- World Health Organization (WHO) Cambodia Country Office, Phnom Penh, Cambodia
| | - Narann Topps
- World Health Organization (WHO) Cambodia Country Office, Phnom Penh, Cambodia
| | - Khem Kosal
- Pailin Referral Hospital, Pailin, Cambodia
| | | | - Phum Souy
- Anlong Veng Referral Hospital, Anlong Venh, Cambodia
| | - Chuor Meng Char
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Chan Vanna
- Pramoy Health Center, Veal Veng, Cambodia
| | - Po Ly
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Virak Khieu
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh, Cambodia
| | - Eva Christophel
- WHO Western Pacific Regional Office, Manila, the Philippines
| | | | | | - Mavuto Mukaka
- Mahidol Oxford Tropical Medicine Research Unit, Bangkok, Thailand.,Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, United Kingdom
| | - Didier Menard
- Institut Pasteur du Cambodge, Phnom Penh, Cambodia.,Malaria Genetics and Resistance Group, Biology of Host-Parasite Interactions Unit, Institut Pasteur, Paris, France
| | - J Kevin Baird
- Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, United Kingdom.,Eijkman Oxford Clinical Research Unit, Eijkman Institute of Molecular Biology, Jakarta, Indonesia
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17
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Taylor WRJ, Kheng S, Muth S, Tor P, Kim S, Bjorge S, Topps N, Kosal K, Sothea K, Souy P, Char CM, Vanna C, Ly P, Khieu V, Christophel E, Kerleguer A, Pantaleo A, Mukaka M, Menard D, Baird JK. Corrigendum to: Hemolytic Dynamics of Weekly Primaquine Antirelapse Therapy Among Cambodians With Acute Plasmodium vivax Malaria With or Without Glucose-6-Phosphate Dehydrogenase Deficiency. J Infect Dis 2020; 221:854. [PMID: 31770431 PMCID: PMC7026887 DOI: 10.1093/infdis/jiz530] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Walter R J Taylor
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh.,Service de Médecine Tropicale et Humanitaire, Hôpitaux Universitaires de Genève, Switzerland.,Mahidol Oxford Tropical Medicine Research Unit, Bangkok, Thailand
| | - Sim Kheng
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh
| | - Sinoun Muth
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh
| | - Pety Tor
- Institut Pasteur du Cambodge, Phnom Penh
| | - Saorin Kim
- Institut Pasteur du Cambodge, Phnom Penh
| | - Steven Bjorge
- World Health Organization (WHO) Cambodia Country Office, Phnom Penh
| | - Narann Topps
- World Health Organization (WHO) Cambodia Country Office, Phnom Penh
| | | | | | - Phum Souy
- Anlong Veng Referral Hospital, Anlong Venh
| | - Chuor Meng Char
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh
| | - Chan Vanna
- Pramoy Health Center, Veal Veng, Cambodia
| | - Po Ly
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh
| | - Virak Khieu
- National Center for Parasitology, Entomology, and Malaria Control, Phnom Penh
| | - Eva Christophel
- WHO Western Pacific Regional Office, Manila, the Philippines
| | | | | | - Mavuto Mukaka
- Mahidol Oxford Tropical Medicine Research Unit, Bangkok, Thailand.,Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, United Kingdom
| | - Didier Menard
- Institut Pasteur du Cambodge, Phnom Penh.,Malaria Genetics and Resistance Group, Biology of Host-Parasite Interactions Unit, Institut Pasteur, Paris, France
| | - J Kevin Baird
- Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, United Kingdom.,Eijkman Oxford Clinical Research Unit, Eijkman Institute of Molecular Biology, Jakarta, Indonesia
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18
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Tsamesidis I, Pouroutzidou GK, Lymperaki E, Kazeli K, Lioutas CB, Christodoulou E, Perio P, Reybier K, Pantaleo A, Kontonasaki E. Effect of ion doping in silica-based nanoparticles on the hemolytic and oxidative activity in contact with human erythrocytes. Chem Biol Interact 2020; 318:108974. [PMID: 32032594 DOI: 10.1016/j.cbi.2020.108974] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 09/12/2019] [Revised: 01/17/2020] [Accepted: 01/31/2020] [Indexed: 12/14/2022]
Abstract
AIM The aim of this study was the synthesis of ion doped silica-based nanoparticles and the evaluation of their toxic effect on erythrocytes. MATERIALS & METHODS Their synthesis was performed using the sol-gel method, by the progressive addition of calcium, magnesium and copper ions on pure silica nanoparticles. The toxicity evaluation was based on hemolysis, lipid peroxidation, ROS, H2O2 species and antioxidant enzyme production. RESULTS The addition of Mg and Cu in the SNs presented better hemocompatibility by protecting erythrocytes from oxidative stress. CONCLUSION Ion doping with magnesium in the investigated calcium silicate system induces a protective effect in erythrocyte membrane in compare with pure silica nanoparticles.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari 07100, Italy; Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France.
| | - Georgia K Pouroutzidou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Evgenia Lymperaki
- Department of Biomedical Sciences, International Hellenic University (ex-Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Konstantina Kazeli
- Department of Biomedical Sciences, International Hellenic University (ex-Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Christos B Lioutas
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Evi Christodoulou
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Pierre Perio
- Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France
| | - Karine Reybier
- Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari 07100, Italy
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece
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19
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Secchi C, Orecchioni M, Carta M, Galimi F, Turrini F, Pantaleo A. Signaling Response to Transient Redox Stress in Human Isolated T Cells: Molecular Sensor Role of Syk Kinase and Functional Involvement of IL2 Receptor and L-Selectine. Sensors (Basel) 2020; 20:s20020466. [PMID: 31947584 PMCID: PMC7013990 DOI: 10.3390/s20020466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/04/2020] [Accepted: 01/08/2020] [Indexed: 01/04/2023]
Abstract
Reactive oxygen species (ROS) are central effectors of inflammation and play a key role in cell signaling. Previous reports have described an association between oxidative events and the modulation of innate immunity. However, the role of redox signaling in adaptive immunity is still not well understood. This work is based on a novel investigation of diamide, a specific oxidant of sulfhydryl groups, and it is the first performed in purified T cell tyrosine phosphorylation signaling. Our data show that ex vivo T cells respond to –SH group oxidation with a distinctive tyrosine phosphorylation response and that these events elicit specific cellular responses. The expression of two essential T-cell receptors, CD25 and CD62L, and T-cell cytokine release is also affected in a specific way. Experiments with Syk inhibitors indicate a major contribution of this kinase in these phenomena. This pilot work confirms the presence of crosstalk between oxidation of cysteine residues and tyrosine phosphorylation changes, resulting in a series of functional events in freshly isolated T cells. Our experiments show a novel role of Syk inhibitors in applying their anti-inflammatory action through the inhibition of a ROS-generated reaction.
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Affiliation(s)
- Christian Secchi
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Diego, School of Medicine, La Jolla, CA 92093, USA
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
- Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100 Sassari, Italy
- Correspondence: (C.S.); (A.P.); Tel./Fax: +39-079-228-651 (A.P.)
| | - Marco Orecchioni
- La Jolla Institute of Immunology, La Jolla, CA 92093, USA;
- Department of Chemistry and Pharmacy, University of Sassari, I-07100 Sassari, Italy
| | - Marissa Carta
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
| | - Francesco Galimi
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
- Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100 Sassari, Italy
| | | | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; (M.C.); (F.G.)
- Correspondence: (C.S.); (A.P.); Tel./Fax: +39-079-228-651 (A.P.)
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20
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Liotti FM, Posteraro B, Mannu F, Carta F, Pantaleo A, De Angelis G, Menchinelli G, Spanu T, Fiori PL, Turrini F, Sanguinetti M. Development of a Multiplex PCR Platform for the Rapid Detection of Bacteria, Antibiotic Resistance, and Candida in Human Blood Samples. Front Cell Infect Microbiol 2019; 9:389. [PMID: 31799215 PMCID: PMC6863929 DOI: 10.3389/fcimb.2019.00389] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/29/2019] [Indexed: 12/29/2022] Open
Abstract
The diagnosis of bloodstream infections (BSIs) still relies on blood culture (BC), but low turnaround times may hinder the early initiation of an appropriate antimicrobial therapy, thus increasing the risk of infection-related death. We describe a direct and rapid multiplex PCR-based assay capable of detecting and identifying 16 bacterial and four Candida species, as well as three antibiotic-resistance determinants, in uncultured samples. Using whole-blood samples spiked with microorganisms at low densities, we found that the MicrobScan assay had a mean limit of detection of 15.1 ± 3.3 CFU of bacteria/Candida per ml of blood. When applied to positive BC samples, the assay allowed the sensitive and specific detection of BSI pathogens, including bla KPC-, mecA-, or vanA/vanB-positive bacteria. We evaluated the assay using prospectively collected blood samples from patients with suspected BSI. The sensitivity and specificity were 86.4 and 97.0%, respectively, among patients with positive BCs for the microorganisms targeted by the assay or patients fulfilling the criteria for infection. The mean times to positive or negative assay results were 5.3 ± 0.2 and 5.1 ± 0.1 h, respectively. Fifteen of 20 patients with MicrobScan assay-positive/BC-negative samples were receiving antimicrobial therapy. In conclusion, the MicrobScan assay is well suited to complement current diagnostic methods for BSIs.
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Affiliation(s)
- Flora Marzia Liotti
- Istituto di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Brunella Posteraro
- Istituto di Patologia Medica e Semeiotica Medica, Università Cattolica del Sacro Cuore, Rome, Italy.,Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | | | | | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Giulia De Angelis
- Istituto di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giulia Menchinelli
- Istituto di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Teresa Spanu
- Istituto di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Italy.,Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Pier Luigi Fiori
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | | | - Maurizio Sanguinetti
- Istituto di Microbiologia, Università Cattolica del Sacro Cuore, Rome, Italy.,Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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21
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Tsamesidis I, Lymperaki E, Pantaleo A, Vagdatli E, Nikza P, Lettas A, Satta A, Oggiano M, Fozza C. Hematological, biochemical and antioxidant indices variations in regular blood donors among Mediterranean regions. Transfus Apher Sci 2019; 58:102659. [PMID: 31735654 DOI: 10.1016/j.transci.2019.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 09/29/2019] [Accepted: 10/03/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND & OBJECTIVES One of the most important problems in Mediterranean regions is finding blood donors to overcome the high need of its population. Understanding the health benefits of blood donation frequency will activate more volunteers to donate. The aim of this study variations of hematological and biochemical indices in regular male and female donors from Greece and Italy METHODS: A cross-sectional study consisted of 350 voluntary blood donors (VDs)was conducted in two mediterranean Blood Banks, Greece and Italy. The first one from the General Hospital of Naousa, Greece on samples of 90 regular and 60 first-time blood donors. The second one from AOU Sassari, Sardinia, Italy on convenient samples of 100 first-time samples and 100 regular blood donors. Donors' particulars were obtained from blood bank records. The hematological and biochemical parameters were determined for all donors and Total Antioxidant Status (TAS) only for greek VDs. RESULTS High frequency blood donation of Greek VDs could be associated with evidence of reduction of body iron stores, reduced oxidative stress and improvement of liver function biomarkers in regular groups. Interestingly, Sardinian regular male VDs presented increased iron stores in compare with the first time VDs. In both Mediterranean populations (Greeks and Italians) the lipid profile of the female regular blood donors has been improved in compare with the first timers. CONCLUSION Regular blood donation increases antioxidant capacity and affects positively the hematological parameters and biochemical biomarkers in donors. Gender plays an important role in relation to all hematological and biochemical parameters. Further studies in larger population should evaluate the beneficial-effect of blood donation and promote people to donate more frequent.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy; Pharmadev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, 31400, France.
| | - Evgenia Lymperaki
- Department of Biomedical Sciences, International Hellenic University (ex- Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Eleni Vagdatli
- Department of Biomedical Sciences, International Hellenic University (ex- Alexander Technological Educational Institute of Thessaloniki), Greece
| | - Polyxeni Nikza
- Naoussa General Hospital, Blood Bank Section, Naousa, Greece
| | | | - Agostino Satta
- Servizio Immunotrasfusionale Azienda Ospedaliero Universitaria (A.O.U) Sasssari, Sassari, Italy
| | - Massimiliano Oggiano
- Servizio Immunotrasfusionale Azienda Ospedaliero Universitaria (A.O.U) Sasssari, Sassari, Italy
| | - Claudio Fozza
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
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22
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Pouroutzidou GK, Theodorou GS, Kontonasaki E, Tsamesidis I, Pantaleo A, Patsiaoura D, Papadopoulou L, Rhoades J, Likotrafiti E, Lioutas CB, Chrissafis K, Paraskevopoulos KM. Effect of ethanol/TEOS ratios and amount of ammonia on the properties of copper-doped calcium silicate nanoceramics. J Mater Sci Mater Med 2019; 30:98. [PMID: 31440844 DOI: 10.1007/s10856-019-6297-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
Calcium magnesium silicate glasses could be suggested for the synthesis of scaffolds for hard tissue regeneration, as they present a high residual glassy phase, high hardness values and hydroxyapatite-forming ability. The use of trace elements in the human body, such as Cu, could improve the biological performance of such glasses, as Cu is known to play a significant role in angiogenesis. Nano-bioceramics are preferable compared to their micro-scale counterparts, because of their increased surface area, which improves both mechanical properties and apatite-forming ability due to the increased nucleation sites provided, their high diffusion rates, reduced sintering time or temperature, and high mechanical properties. The aim of the present work was the evaluation of the effect of different ratios of Ethanol/TEOS and total amount of the inserted ammonia to the particle size, morphology and bioactive, hemolytic and antibacterial behavior of nanoparticles in the quaternary system SiO2-CaO-MgO-CuO. Different ratios of Ethanol/TEOS and ammonia amount affected the size and morphology of bioactive nanopowders. The optimum materials were synthesized with the highest ethanol/TEOS ratio and ammonia amount as verified by the enhanced apatite-forming ability and antibacterial and non-hemolytic properties.
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Affiliation(s)
- Georgia K Pouroutzidou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Georgios S Theodorou
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Eleana Kontonasaki
- Department of Fixed Prosthesis and Implant Prosthodontics, School of Health Sciences, Faculty of Dentistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari, 07100, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, 07100, Italy
| | - Dimitra Patsiaoura
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Lambrini Papadopoulou
- Department of Mineralogy-Petrology-Economic Geology, School of Geology, Faculty of Sciences, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Jonathan Rhoades
- Department of Food Technology, Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, 57 400, Greece
| | - Eleni Likotrafiti
- Department of Food Technology, Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, 57 400, Greece
| | - Christos B Lioutas
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
| | - Konstantinos Chrissafis
- School of Physics, Faculty of Sciences, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece
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23
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Tsamesidis I, Pantaleo A, Pekou A, Gusani A, Iliadis S, Makedou K, Manca A, Carruale A, Lymperaki E, Fozza C. Correlation of Oxidative Stress Biomarkers and Hematological Parameters in Blood Cancer Patients from Sardinia, Italy. Int J Hematol Oncol Stem Cell Res 2019. [DOI: 10.18502/ijhoscr.v13i2.688] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background: Over the last few decades, there has been a dramatic increase in hematological malignancies (HMs) in the population of Sardinia. It is accepted that oxidative stress biomarkers have been demonstrated to be prognostically important in various neoplastic diseases. The aim of this study is to evaluate serum vitamin E, total antioxidant capacity (TAC), Malondialdehyde (MDA) and reactive oxygen species (ROS) levels in 80 Sardinian patients with different HMs [acute myeloid leukemia (AML)(n=20), myelodysplastic syndromes (MDS) (n=20), Hodgkin lymphoma (HL) (n=20) and non-Hodgkin lymphoma (NHL) (n=20)] on the day of their diagnosis.
Materials and Methods: Samples from all participants were obtained after an overnight fast (at least 10 hours). This study was approved and conducted in accordance with Good Clinical Practice guidelines and the Declaration of Helsinki. Patients and controls provided written, informed consent before entering the study. All study participants’ medical history and their medication were documented upon enrolling.
Results: Lower levels of TAC and Vitamin E were observed in most of the studied groups compared to healthy controls (0.41-0.49 mmol/L vs. 0.56 mmol/L) (19.55-28.55 μmol/L vs. 34.51 μmol/L). Moreover, higher average MDA levels were observed in HL and NHL patients compared to healthy controls (16.6 ng/ml-17.8 ng/ml vs. 7.4 ng/ml). Additionally, the ROS values of all studied groups were found elevated. Serum TAC showed significant negative correlations with MDA values (R= -0.51; P<0.001). Statistical significance was observed in all hematological parameters, producing either positive or negative correlation with at least one OS biomarker.
Conclusion: The present data suggest that Sardinian patients with HL and NHL on the day of their diagnosis presented the highest OS in comparison to AML and healthy subjects. Moreover, MDS patients presented high OS status. Likewise, our results also indicated that changes in their hematological indices are eminent of their oxidative and antioxidative status.
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Pau MC, Pantaleo A, Tsamesidis I, Hoang H, Tuan Tran A, Hanh Nguyen TL, Giang Phan TH, Ton Nu PA, Chau Ngo TM, Marchetti G, Schwarzer E, Fiori PL, Low PS, Dinh Huynh C, Turrini FM. Clinical impact of the two ART resistance markers, K13 gene mutations and DPC3 in Vietnam. PLoS One 2019; 14:e0214667. [PMID: 30939179 PMCID: PMC6445423 DOI: 10.1371/journal.pone.0214667] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 10/08/2018] [Accepted: 03/18/2019] [Indexed: 11/18/2022] Open
Abstract
Background In Vietnam, a rapid decline of P. falciparum malaria cases has been documented in the past years, the number of Plasmodium falciparum malaria cases has rapidly decreased passing from 19.638 in 2012 to 4.073 cases in 2016. Concomitantly, the spread of artemisinin resistance markers is raising concern on the future efficacy of the ACTs. An evaluation of the clinical impact of the artemisinin resistance markers is therefore of interest. Methods The clinical effectiveness of dihydroartemisinin-piperaquine therapy (DHA-PPQ) has been evaluated in three districts characterized by different rates of ART resistance markers: K13(C580Y) mutation and delayed parasite clearance on day 3 (DPC3). Patients were stratified in 3 groups a) no markers, b) one marker (suspected resistance), c) co-presence of both markers (confirmed resistance). In the studied areas, the clinical effectiveness of DHA-PPQ has been estimated as malaria recrudescence within 60 days. Results The rate of K13(C580Y) ranged from 75.8% in Krong Pa to 1.2% in Huong Hoa district. DPC3 prevalence was higher in Krong Pa than in Huong Hoa (86.2% vs 39.3%). In the two districts, the prevalence of confirmed resistance was found in 69.0% and 1.2% of patients, respectively. In Thuan Bac district, we found intermediate prevalence of confirmed resistance. Treatment failure was not evidenced in any district. PPQ resistance was not evidenced. Confirmed resistance was associated to the persistence of parasites on day 28 and to 3.4-fold higher parasite density at diagnosis. The effectiveness of malaria control strategies was very high in the studied districts. Conclusion No treatment failure has been observed in presence of high prevalence of ART resistance and in absence of PPQ resistance. K13(C580Y) was strongly associated to higher parasitemia at admission, on days 3 and 28. Slower parasite clearance was also observed in younger patients.
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Affiliation(s)
- Maria Carmina Pau
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- * E-mail:
| | - Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Ha Hoang
- Duy Tan University, Danang, Vietnam
| | - Anh Tuan Tran
- Huong Hoa District Health Center, Quang Tri, Vietnam
| | | | - Thi Hang Giang Phan
- Department of Immunology and Pathophysiology, Hue University, Hue City, Vietnam
| | | | | | - Giuseppe Marchetti
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | | | - Pier Luigi Fiori
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Philip S. Low
- Purdue Center for Drug Discovery and Department of Chemistry, Purdue University, West Lafayette, Indiana, United States of America
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25
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Tsamesidis I, Pantaleo A, Pekou A, Gusani A, Iliadis S, Makedou K, Manca A, Carruale A, Lymperaki E, Fozza C. Correlation of Oxidative Stress Biomarkers and Hematological Parameters in Blood Cancer Patients from Sardinia, Italy. Int J Hematol Oncol Stem Cell Res 2019; 13:49-57. [PMID: 31372197 PMCID: PMC6660479] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: Over the last few decades, there has been a dramatic increase in hematological malignancies (HMs) in the population of Sardinia. It is accepted that oxidative stress biomarkers have been demonstrated to be prognostically important in various neoplastic diseases. The aim of this study is to evaluate serum vitamin E, total antioxidant capacity (TAC), Malondialdehyde (MDA) and reactive oxygen species (ROS) levels in 80 Sardinian patients with different HMs [acute myeloid leukemia (AML)(n=20), myelodysplastic syndromes (MDS) (n=20), Hodgkin lymphoma (HL) (n=20) and non-Hodgkin lymphoma (NHL) (n=20)] on the day of their diagnosis. Materials and Methods: Samples from all participants were obtained after an overnight fast (at least 10 hours). This study was approved and conducted in accordance with Good Clinical Practice guidelines and the Declaration of Helsinki. Patients and controls provided written, informed consent before entering the study. All study participants' medical history and their medication were documented upon enrolling. Results: Lower levels of TAC and Vitamin E were observed in most of the studied groups compared to healthy controls (0.41-0.49 mmol/L vs. 0.56 mmol/L) (19.55-28.55 μmol/L vs. 34.51 μmol/L). Moreover, higher average MDA levels were observed in HL and NHL patients compared to healthy controls (16.6 ng/ml-17.8 ng/ml vs. 7.4 ng/ml). Additionally, the ROS values of all studied groups were found elevated. Serum TAC showed significant negative correlations with MDA values (R= -0.51; P<0.001). Statistical significance was observed in all hematological parameters, producing either positive or negative correlation with at least one OS biomarker. Conclusion: The present data suggest that Sardinian patients with HL and NHL on the day of their diagnosis presented the highest OS in comparison to AML and healthy subjects. Moreover, MDS patients presented high OS status. Likewise, our results also indicated that changes in their hematological indices are eminent of their oxidative and antioxidative status.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Anna Pekou
- Department of Biochemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Amrita Gusani
- Department of Pharmacy, University of Portsmouth, Portsmouth, UK
| | - Stavros Iliadis
- Department of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kali Makedou
- Department of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alessia Manca
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Antonio Carruale
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Eugenia Lymperaki
- Department of Medical Laboratories, Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, Greece
| | - Claudio Fozza
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
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Masat M, Pantaleo A, Calcara G, Minniti G, Camata A, Polesello L, Mondin F, Possamai M, Rivaben D, Antonini-Canterin F. OC85 TREATMENT OF AORTIC INSUFFICIENCY THROUGH AORTIC LEAFLETS REMODELLING. J Cardiovasc Med (Hagerstown) 2018. [DOI: 10.2459/01.jcm.0000549882.64627.ec] [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: 11/05/2022]
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Barvitenko N, Lawen A, Aslam M, Pantaleo A, Saldanha C, Skverchinskaya E, Regolini M, Tuszynski JA. Integration of intracellular signaling: Biological analogues of wires, processors and memories organized by a centrosome 3D reference system. Biosystems 2018; 173:191-206. [PMID: 30142359 DOI: 10.1016/j.biosystems.2018.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 08/03/2018] [Accepted: 08/20/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Myriads of signaling pathways in a single cell function to achieve the highest spatio-temporal integration. Data are accumulating on the role of electromechanical soliton-like waves in signal transduction processes. Theoretical studies strongly suggest feasibility of both classical and quantum computing involving microtubules. AIM A theoretical study of the role of the complex composed of the plasma membrane and the microtubule-based cytoskeleton as a system that transmits, stores and processes information. METHODS Theoretical analysis presented here refers to (i) the Penrose-Hameroff theory of consciousness (Orchestrated Objective Reduction; Orch OR), (ii) the description of the centrosome as a reference system for construction of the 3D map of the cell proposed by Regolini, (iii) the Heimburg-Jackson model of the nerve pulse propagation along axons' lipid bilayer as soliton-like electro-mechanical waves. RESULTS AND CONCLUSION The ideas presented in this paper provide a qualitative model for the decision-making processes in a living cell undergoing a differentiation process. OUTLOOK This paper paves the way for the real-time live-cell observation of information processing by microtubule-based cytoskeleton and cell fate decision making.
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Affiliation(s)
| | - Alfons Lawen
- Monash University, School of Biomedical Sciences, Department of Biochemistry and Molecular Biology, VIC, 3800, Australia
| | - Muhammad Aslam
- Medical Clininc I, Cardiology/Angiology, University Hospital, Justus-Liebig-University, Giessen, Germany
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Carlota Saldanha
- Instituto de Medicina Molecular, Instituto de Bioquimica, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | | | - Marco Regolini
- Department of Bioengineering and Mathematical Modeling, AudioLogic, Milan, Italy
| | - Jack A Tuszynski
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada; Department of Physics, University of Alberta, Edmonton, Alberta, Canada; Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, IT-10128, Torino, Italy.
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De Lucia S, Tsamesidis I, Pau MC, Kesely KR, Pantaleo A, Turrini F. Induction of high tolerance to artemisinin by sub-lethal administration: A new in vitro model of P. falciparum. PLoS One 2018; 13:e0191084. [PMID: 29342187 PMCID: PMC5771598 DOI: 10.1371/journal.pone.0191084] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 04/12/2017] [Accepted: 12/18/2017] [Indexed: 12/13/2022] Open
Abstract
Artemisinin resistance is a major threat to malaria control efforts. Resistance is characterized by an increase in the Plasmodium falciparum parasite clearance half-life following treatment with artemisinin-based combination therapies (ACTs) and an increase in the percentage of surviving parasites. The remarkably short blood half-life of artemisinin derivatives may contribute to drug-resistance, possibly through factors including sub-lethal plasma concentrations and inadequate exposure. Here we selected for a new strain of artemisinin resistant parasites, termed the artemisinin resistant strain 1 (ARS1), by treating P. falciparum Palo Alto (PA) cultures with sub-lethal concentrations of dihydroartemisinin (DHA). The resistance phenotype was maintained for over 1 year through monthly maintenance treatments with low doses of 2.5 nM DHA. There was a moderate increase in the DHA IC50 in ARS1 when compared with parental strain PA after 72 h of drug exposure (from 0.68 nM to 2 nM DHA). In addition, ARS1 survived treatment physiologically relevant DHA concentrations (700 nM) observed in patients. Furthermore, we confirmed a lack of cross-resistance against a panel of antimalarials commonly used as partner drugs in ACTs. Finally, ARS1 did not contain Pfk13 propeller domain mutations associated with ART resistance in the Greater Mekong Region. With a stable growth rate, ARS1 represents a valuable tool for the development of new antimalarial compounds and studies to further elucidate the mechanisms of ART resistance.
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Affiliation(s)
- Serena De Lucia
- Department of Oncology, University of Turin, Turin, Italy
- * E-mail:
| | - Ioannis Tsamesidis
- Department of Medicine, Section of Internal Medicine, University of Verona, Verona, Italy
| | - Maria Carmina Pau
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Kristina R. Kesely
- Department of Biochemistry, Purdue University, West Lafayette, United States of America
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
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Tsamesidis I, Fozza C, Vagdatli E, Kalpaka A, Cirotto C, Pau MC, Pantaleo A, Turrini F, Grigoriou E, Lymperaki E. Total antioxidant capacity in Mediterranean β-thalassemic patients. ADV CLIN EXP MED 2017; 26:789-793. [PMID: 29068574 DOI: 10.17219/acem/63746] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Beta thalassemia major (BT) is an inherited blood disorder caused by reduced or absent synthesis of the hemoglobin beta chains, associated with profound anemia, jaundice, splenomegaly, expanded bone marrow volume, siderosis and cardiomegaly. Because of repeated blood transfusions, BT patients are subjected to peroxidative tissue injury due to secondary iron overload. OBJECTIVES The aim of the study was to analyze: 1) the total antioxidant capacity (TAC) value in BT patients (study group) and their healthy controls (control group) from Greece (Central Macedonia) and Italy (Sardinia); correlations between 2) the TAC and ferritin levels of BT patients, and 3) the TAC and ferritin values in BT patients with different chelation therapies. MATERIAL AND METHODS The studied group consisted of 60 subjects diagnosed with BT (41 female, mean age: 41.5 ± 9.5 years) and 40 healthy controls matched with age and sex (31 female, mean age: 38.5 ± 3.7 years). Desferrioxamine (DFO) was the basic previous chelation regimen for all BT patients. Antioxidant activity was assayed spectrophotometrically, using a TAC Kit (Total Antioxidant Capacity Colorimetric assay kit, produced by Cayman Chemical Co.), and ferritin was assayed by immunoturbidimetry. RESULTS Lower levels of TAC were observed in BT patients of both countries when compared with controls (1.83 mmol/L vs 2.7 mmol/L in the Italian study group and controls and 2.42 mmol/L vs 3.2 mmol/L in the Greek study group and controls). There were no significant correlations between plasmatic TAC and ferritin. Furthermore, deferasirox was the only chelation treatment in which TAC showed a correlation in both regions. CONCLUSIONS Our results potentially suggest that the reduced levels of TAC detectable in BT patients could demonstrate their reduced antioxidant defensive mechanisms.
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Affiliation(s)
- Ioannis Tsamesidis
- Department of Medicine, Section of Internal Medicine, University of Verona, Italy
| | - Claudio Fozza
- Department of Biomedical Sciences, University of Sassari, Italy
| | - Eleni Vagdatli
- Department of Medical Laboratories, Alexander Technological Educational Institute of Thessaloniki, Sindos, Greece
| | | | - Carla Cirotto
- Blood Center, Servizio Trasfusionale, Ospedale Santissima Annunziata, Sassari, Italy
| | - Maria Carmina Pau
- Department of Medicine, Section of Internal Medicine, University of Verona, Italy
| | | | - Francesco Turrini
- Department of Oncology, University of Turin Medical School, Turin, Italy
| | - Elisavet Grigoriou
- Department of Electrical Engineering and Electronics, University of Cagliari, Italy
| | - Eugenia Lymperaki
- Department of Medical Laboratories, Alexander Technological Educational Institute of Thessaloniki, Sindos, Greece
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Kesely KR, Pantaleo A, Turrini FM, Olupot-Olupot P, Low PS. Inhibition of an Erythrocyte Tyrosine Kinase with Imatinib Prevents Plasmodium falciparum Egress and Terminates Parasitemia. PLoS One 2016; 11:e0164895. [PMID: 27768734 PMCID: PMC5074466 DOI: 10.1371/journal.pone.0164895] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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: 07/05/2016] [Accepted: 10/03/2016] [Indexed: 11/18/2022] Open
Abstract
With half of the world's population at risk for malaria infection and with drug resistance on the rise, the search for mutation-resistant therapies has intensified. We report here a therapy for Plasmodium falciparum malaria that acts by inhibiting the phosphorylation of erythrocyte membrane band 3 by an erythrocyte tyrosine kinase. Because tyrosine phosphorylation of band 3 causes a destabilization of the erythrocyte membrane required for parasite egress, inhibition of the erythrocyte tyrosine kinase leads to parasite entrapment and termination of the infection. Moreover, because one of the kinase inhibitors to demonstrate antimalarial activity is imatinib, i.e. an FDA-approved drug authorized for use in children, translation of the therapy into the clinic will be facilitated. At a time when drug resistant strains of P. falciparum are emerging, a strategy that targets a host enzyme that cannot be mutated by the parasite should constitute a therapeutic mechanism that will retard evolution of resistance.
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Affiliation(s)
- Kristina R. Kesely
- Purdue Institute for Drug Discovery, Purdue University, West Lafayette, 47907, United States of America
- Purdue Department of Chemistry, Purdue University, West Lafayette, 47907, United States of America
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Francesco M. Turrini
- Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy
| | - Peter Olupot-Olupot
- Department of Paediatrics/Research Unit, Mbale Regional Referral Hospital, Mbale, Uganda
| | - Philip S. Low
- Purdue Institute for Drug Discovery, Purdue University, West Lafayette, 47907, United States of America
- Purdue Department of Chemistry, Purdue University, West Lafayette, 47907, United States of America
- * E-mail:
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Pantaleo A, Pau MC, Chien HD, Turrini F. Artemisinin resistance, some facts and opinions. J Infect Dev Ctries 2015; 9:597-9. [DOI: 10.3855/jidc.7015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 05/18/2015] [Accepted: 05/18/2015] [Indexed: 10/31/2022] Open
Abstract
Resistance to artemisinin derivatives (ARTs) in malaria disease is currently defined as a delayed parasite clearance following artemisinin combined therapy (ACT). Although ACT is still widely effective, the first evidence of artemisinin resistance was described in 2009 in Southeast Asia. Since then, resistance to ARTs / ACT has been monitored showing an increasing trend. The demonstrated resistance to all drugs that are currently associated to ART, the ambiguous finding that ART resistance is observed only in presence of resistance to the partner drug, the lack of a mechanistic rationale to choose the partner drugs and the lack of markers with known specificity and sensitivity to monitor ART resistance, represent the most worrisome issues.
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Tauber S, Hauschild S, Paulsen K, Gutewort A, Raig C, Hürlimann E, Biskup J, Philpot C, Lier H, Engelmann F, Pantaleo A, Cogoli A, Pippia P, Layer LE, Thiel CS, Ullrich O. Signal Transduction in Primary Human T Lymphocytes in Altered Gravity During Parabolic Flight and Clinostat Experiments. Cell Physiol Biochem 2015; 35:1034-51. [DOI: 10.1159/000373930] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2014] [Indexed: 11/19/2022] Open
Abstract
Background/Aims: Several limiting factors for human health and performance in microgravity have been clearly identified arising from the immune system, and substantial research activities are required in order to provide the basic information for appropriate integrated risk management. The gravity-sensitive nature of cells of the immune system renders them an ideal biological model in search for general gravity-sensitive mechanisms and to understand how the architecture and function of human cells is related to the gravitational force and therefore adapted to life on Earth. Methods: We investigated the influence of altered gravity in parabolic flight and 2D clinostat experiments on key proteins of activation and signaling in primary T lymphocytes. We quantified components of the signaling cascade 1.) in non-activated T lymphocytes to assess the “basal status” of the cascade and 2.) in the process of activation to assess the signal transduction. Results: We found a rapid decrease of CD3 and IL-2R surface expression and reduced p-LAT after 20 seconds of altered gravity in non-activated primary T lymphocytes during parabolic flight. Furthermore, we observed decreased CD3 surface expression, reduced ZAP-70 abundance and increased histone H3-acetylation in activated T lymphocytes after 5 minutes of clinorotation and a transient downregulation of CD3 and stable downregulation of IL-2R during 60 minutes of clinorotation. Conclusion: CD3 and IL-2R are downregulated in primary T lymphocytes in altered gravity. We assume that a gravity condition around 1g is required for the expression of key surface receptors and appropriate regulation of signal molecules in T lymphocytes.
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Secchi C, Carta M, Crescio C, Spano A, Arras M, Caocci G, Galimi F, La Nasa G, Pippia P, Turrini F, Pantaleo A. T cell tyrosine phosphorylation response to transient redox stress. Cell Signal 2015; 27:777-88. [PMID: 25572700 DOI: 10.1016/j.cellsig.2014.12.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 12/09/2014] [Accepted: 12/24/2014] [Indexed: 12/29/2022]
Abstract
Reactive Oxygen Species (ROS) are crucial to multiple biological processes involved in the pathophysiology of inflammation, and are also involved in redox signaling responses. Although previous reports have described an association between oxidative events and the modulation of innate immunity, a role for redox signaling in T cell mediated adaptive immunity has not been described yet. This work aims at assessing if T cells can sense redox stress through protein sulfhydryl oxidation and respond with tyrosine phosphorylation changes. Our data show that Jurkat T cells respond to -SH group oxidation with specific tyrosine phosphorylation events. The release of T cell cytokines TNF, IFNγ and IL2 as well as the expression of a number of receptors are affected by those changes. Additionally, experiments with spleen tyrosine kinase (Syk) inhibitors showed a major involvement of Syk in these responses. The experiments described herein show a link between cysteine oxidation and tyrosine phosphorylation changes in T cells, as well as a novel mechanism by which Syk inhibitors exert their anti-inflammatory activity through the inhibition of a response initiated by ROS.
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Affiliation(s)
- Christian Secchi
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100, Sassari, Italy
| | - Marissa Carta
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Claudia Crescio
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Alessandra Spano
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Marcella Arras
- Haematology, Hospital Binaghi, ASL 8 Cagliari, I-09126, Cagliari, Italy
| | - Giovanni Caocci
- Haematology, Department of Medical Sciences, University of Cagliari, I-09042 Cagliari, Italy
| | - Francesco Galimi
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100, Sassari, Italy
| | - Giorgio La Nasa
- Haematology, Department of Medical Sciences, University of Cagliari, I-09042 Cagliari, Italy
| | - Proto Pippia
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Francesco Turrini
- Department of Genetics, Biology and Biochemistry, University of Turin, I-10126 Turin, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy.
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Matté A, Pantaleo A, Ferru E, Turrini F, Bertoldi M, Lupo F, Siciliano A, Ho Zoon C, De Franceschi L. The novel role of peroxiredoxin-2 in red cell membrane protein homeostasis and senescence. Free Radic Biol Med 2014; 76:80-8. [PMID: 25151118 DOI: 10.1016/j.freeradbiomed.2014.08.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 08/12/2014] [Accepted: 08/12/2014] [Indexed: 11/28/2022]
Abstract
Peroxiredoxin-2 (Prx2), a typical two-cysteine peroxiredoxin, is the third most abundant protein in red cells. Although progress has been made in the functional characterization of Prx2, its role in red cell membrane protein homeostasis is still under investigation. Here, we studied Prx2(-/-) mouse red cells. The absence of Prx2 promotes (i) activation of the oxidative-induced Syk pathway; (ii) increased band 3 Tyr phosphorylation, with clustered band 3; and (iii) increased heat shock protein (HSP27 and HSP70) membrane translocation. This was associated with enhanced in vitro erythrophagocytosis of Prx2(-/-) red cells and reduced Prx2(-/-) red cell survival, indicating the possible role of Prx2 membrane recruitment in red cell aging and in the clearance of oxidized hemoglobin and damaged proteins through microparticles. Indeed, we observed an increased release of microparticles from Prx2(-/-) mouse red cells. The mass spectrometric analysis of erythroid microparticles found hemoglobin chains, membrane proteins, and HSPs. To test these findings, we treated Prx2(-/-) mice with antioxidants in vivo. We observed that N-acetylcysteine reduced (i) Syk activation, (ii) band 3 clusterization, (iii) HSP27 membrane association, and (iv) erythroid microparticle release, resulting in increased Prx2(-/-) mouse red cell survival. Thus, we propose that Prx2 may play a cytoprotective role in red cell membrane protein homeostasis and senescence.
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Affiliation(s)
- Alessandro Matté
- Department of Medicine, Section of Internal Medicine, University of Verona, AOUI-Policlinico GB Rossi, 37134 Verona, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Emanuela Ferru
- Department of Oncology, University of Torino, Torino, Italy
| | - Franco Turrini
- Department of Oncology, University of Torino, Torino, Italy
| | - Mariarita Bertoldi
- Department of Oncology, University of Torino, Torino, Italy; Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, AOUI-Policlinico GB Rossi, 37134 Verona, Italy
| | - Francesca Lupo
- Department of Medicine, Section of Internal Medicine, University of Verona, AOUI-Policlinico GB Rossi, 37134 Verona, Italy
| | - Angela Siciliano
- Department of Medicine, Section of Internal Medicine, University of Verona, AOUI-Policlinico GB Rossi, 37134 Verona, Italy
| | - Chae Ho Zoon
- School of Biological Science and Technology, Chonnam National University, Gwangjiu, Korea
| | - Lucia De Franceschi
- Department of Medicine, Section of Internal Medicine, University of Verona, AOUI-Policlinico GB Rossi, 37134 Verona, Italy.
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Barvitenko NN, Aslam M, Filosa J, Matteucci E, Nikinmaa M, Pantaleo A, Saldanha C, Baskurt OK. Tissue oxygen demand in regulation of the behavior of the cells in the vasculature. Microcirculation 2014; 20:484-501. [PMID: 23441854 DOI: 10.1111/micc.12052] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 02/19/2013] [Indexed: 12/20/2022]
Abstract
The control of arteriolar diameters in microvasculature has been in the focus of studies on mechanisms matching oxygen demand and supply at the tissue level. Functionally, important vascular elements include EC, VSMC, and RBC. Integration of these different cell types into functional units aimed at matching tissue oxygen supply with tissue oxygen demand is only achieved when all these cells can respond to the signals of tissue oxygen demand. Many vasoactive agents that serve as signals of tissue oxygen demand have their receptors on all these types of cells (VSMC, EC, and RBC) implying that there can be a coordinated regulation of their behavior by the tissue oxygen demand. Such functions of RBC as oxygen carrying by Hb, rheology, and release of vasoactive agents are considered. Several common extra- and intracellular signaling pathways that link tissue oxygen demand with control of VSMC contractility, EC permeability, and RBC functioning are discussed.
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Pacini D, Pantaleo A, Di Marco L, Leone A, Barberio G, Murana G, Castrovinci S, Sottili S, Di Bartolomeo R. Visceral organ protection in aortic arch surgery: safety of moderate hypothermia. Eur J Cardiothorac Surg 2014; 46:438-43. [DOI: 10.1093/ejcts/ezt665] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [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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Di Eusanio M, Castrovinci S, Tian DH, Folesani G, Cefarelli M, Pantaleo A, Murana G, Berretta P, Yan TD, Bartolomeo RD. Antegrade stenting of the descending thoracic aorta during DeBakey type 1 acute aortic dissection repair. Eur J Cardiothorac Surg 2013; 45:967-75. [DOI: 10.1093/ejcts/ezt493] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [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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Pacini D, Di Marco L, Pantaleo A, Barberio G, Murana G, Leone A, Pilato E, Di Bartolomeo R. 001 * VISCERAL PROTECTION DURING SURGERY OF THE THORACIC AORTA: THE SAFETY OF MODERATE HYPOTHERMIA. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.1] [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: 11/12/2022] Open
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Ferru E, Pantaleo A, Carta F, Mannu F, Khadjavi A, Gallo V, Ronzoni L, Graziadei G, Cappellini MD, Turrini F. Thalassemic erythrocytes release microparticles loaded with hemichromes by redox activation of p72Syk kinase. Haematologica 2013; 99:570-8. [PMID: 24038029 DOI: 10.3324/haematol.2013.084533] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
High counts of circulating microparticles, originated from the membrane of abnormal erythrocytes, have been associated with increased thrombotic risk in hemolytic disorders. Our studies indicate that in thalassemia intermedia patients the number of circulating microparticles correlates with the capability of the thalassemic erythrocytes to release microparticles. The microparticles are characteristically loaded with hemichromes formed by denatured α-chains. This finding was substantiated by the positive correlation observed in thalassemia intermedia patients between the amount of hemichromes measured in erythrocytes, their capability to release microparticles and the levels of plasma hemichromes. We observed that hemichromes, following their binding to the cytoplasmic domain of band 3, induce the formation of disulfide band 3 dimers that are subsequently phosphorylated by p72Syk kinase. Phosphorylation of oxidized band 3 appears to be relevant for the formation of large hemichromes/band 3 clusters that, in turn, induce local membrane instability and the release of microparticles. Proteomic analysis of microparticles released from thalassemia intermedia erythrocytes indicated that, besides hemichromes and clustered band 3, the microparticles contain a characteristic set of proteins that includes catalase, heat shock protein 70, peroxiredoxin 2 and carbonic anhydrase. High amounts of immunoglobulins and C3 have also been found to be associated with microparticles, accounting for their intense phagocytosis. The effect of p72Syk kinase inhibitors on the release of microparticles from thalassemia intermedia erythrocytes may indicate new perspectives for controlling the release of circulating microparticles in hemolytic anemias.
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Tauber S, Hauschild S, Crescio C, Secchi C, Paulsen K, Pantaleo A, Saba A, Buttron I, Thiel CS, Cogoli A, Pippia P, Ullrich O. Signal transduction in primary human T lymphocytes in altered gravity - results of the MASER-12 suborbital space flight mission. Cell Commun Signal 2013; 11:32. [PMID: 23651740 PMCID: PMC3653714 DOI: 10.1186/1478-811x-11-32] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 04/18/2013] [Indexed: 01/03/2023] Open
Abstract
We investigated the influence of altered gravity on key proteins of T cell activation during the MASER-12 ballistic suborbital rocket mission of the European Space Agency (ESA) and the Swedish Space Cooperation (SSC) at ESRANGE Space Center (Kiruna, Sweden). We quantified components of the T cell receptor, the membrane proximal signaling, MAPK-signaling, IL-2R, histone modifications and the cytoskeleton in non-activated and in ConA/CD28-activated primary human T lymphocytes. The hypergravity phase during the launch resulted in a downregulation of the IL-2 and CD3 receptor and reduction of tyrosine phosphorylation, p44/42-MAPK phosphorylation and histone H3 acetylation, whereas LAT phosphorylation was increased. Compared to the baseline situation at the point of entry into the microgravity phase, CD3 and IL-2 receptor expression at the surface of non-activated T cells were reduced after 6 min microgravity. Importantly, p44/42-MAPK-phosphorylation was also reduced after 6 min microgravity compared to the 1g ground controls, but also in direct comparison between the in-flight μg and the 1g group. In activated T cells, the reduced CD3 and IL-2 receptor expression at the baseline situation recovered significantly during in-flight 1g conditions, but not during microgravity conditions. Beta-tubulin increased significantly after onset of microgravity until the end of the microgravity phase, but not in the in-flight 1g condition. This study suggests that key proteins of T cell signal modules are not severely disturbed in microgravity. Instead, it can be supposed that the strong T cell inhibiting signal occurs downstream from membrane proximal signaling, such as at the transcriptional level as described recently. However, the MASER-12 experiment could identify signal molecules, which are sensitive to altered gravity, and indicates that gravity is obviously not only a requirement for transcriptional processes as described before, but also for specific phosphorylation / dephosphorylation of signal molecules and surface receptor dynamics.
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Affiliation(s)
- Svantje Tauber
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057, Switzerland.
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Khadjavi A, Notarpietro A, Mannu F, Pantaleo A, Ferru E, Destefanis P, Fontana D, Turrini F. A high-throughput assay for the detection of Tyr-phosphorylated proteins in urine of bladder cancer patients. Biochim Biophys Acta Gen Subj 2013; 1830:3664-9. [PMID: 23528894 DOI: 10.1016/j.bbagen.2013.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 03/08/2013] [Accepted: 03/14/2013] [Indexed: 02/01/2023]
Abstract
BACKGROUND Bladder cancer has the peculiarity of shedding neoplastic cells and their components in urine representing a valuable opportunity to detect diagnostic markers. Using a semi-quantitative method we previously demonstrated that the levels of Tyr-phosphorylated proteins (TPPs) are highly increased in bladder cancer tissues and that soluble TPPs can also be detected in patient's urine samples. Although the preliminary evaluation showed very promising specificity and sensitivity, insufficient accuracy and very low throughput of the method halted the diagnostic evaluation of the new marker. To overcome this problem we developed a quantitative methodology with high sensitivity and accuracy to measure TPPs in urine. METHODS The Immobilized Metal Affinity Chromatography (IMAC) was miniaturized in a 96 well format. Luminescence, visible and infrared fluorescence antibody-based detection methods were comparatively evaluated. RESULTS Due to their low abundance we evidenced that both phosphoprotein enrichment step and very sensitive detection methods are required to detect TPPs in urine samples. To pursue high throughput, reproducibility and cost containment, which are required for bladder cancer screening programs, we coupled the pre-analytical IMAC procedure with high sensitive detection phases (infrared fluorescence or chemiluminescence) in an automated platform. CONCLUSIONS A high throughput method for measuring with high sensitivity TPP levels in urine samples is now available for large clinical trial for the establishment of the diagnostic and predictive power of TPPs as bladder cancer marker. GENERAL SIGNIFICANCE The new assay represents the first quantitative and high throughput method for the measurement of TPPs in urine.
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Affiliation(s)
- A Khadjavi
- Department of Oncology, University of Turin Medical School, Turin, Italy.
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Polastri M, Pantaleo A. Managing a left pleural effusion after aortic surgery. Eur Rev Med Pharmacol Sci 2012; 16 Suppl 4:78-80. [PMID: 23090816] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Affiliation(s)
- M Polastri
- Department of Cardiac Surgery, Bologna University Hospital, Bologna, Italy.
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Arese P, Gallo V, Pantaleo A, Turrini F. Life and Death of Glucose-6-Phosphate Dehydrogenase (G6PD) Deficient Erythrocytes - Role of Redox Stress and Band 3 Modifications. ACTA ACUST UNITED AC 2012; 39:328-34. [PMID: 23801924 DOI: 10.1159/000343123] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [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: 05/24/2012] [Accepted: 09/04/2012] [Indexed: 11/19/2022]
Abstract
SUMMARY G6PD catalyzes the first, pace-making reaction of pentosephosphate cycle (PPC) which produces NADPH. NADPH maintains glutathione and thiol groups of proteins and enzymes in the reduced state which is essential for protection against oxidative stress. Individuals affected by G6PD deficiency are unable to regenerate reduced glutathione (GSH) and are undefended against oxidative stress. G6PD deficiency accelerates normal senescence and enhances the precocious removal of chronologically young, yet biologically old cells. The term hemolytic anemia is misleading because RBCs do not lyse but are removed by phagocytosis. Acute hemolysis by fava bean ingestion in G6PD deficient individuals (favism) is described being the best-studied natural model of oxidant damage. It bears strong analogies to hemolysis by oxidant drugs or chemicals. Membrane alterations observed in vivo during favism are superimposable to changes in senescent RBCs. In summary, RBC membranes isolated from favic patients contained elevated amounts of complexes between IgG and the complement fragment C3b/C3c and were prone to vesiculation. Anti-band 3 IgG reacted to aggregated band 3-complement complexes. In favism extensive clustering of band 3 and membrane deposition of hemichromes were also observed. Severely damaged RBCs isolated from early crises had extensive membrane cross-bonding and very low GSH levels and were phagocytosed 10-fold more intensely compared to normal RBCs.
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Affiliation(s)
- Paolo Arese
- Department of Genetics, Biology and Biochemistry, University of Torino, Torino, Italy
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Pantaleo A, Ferru E, Carta F, Valente E, Pippia P, Turrini F. Effect of heterozygous beta thalassemia on the phosphorylative response to Plasmodium falciparum infection. J Proteomics 2012; 76 Spec No.:251-8. [PMID: 22960126 DOI: 10.1016/j.jprot.2012.08.018] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 06/19/2012] [Accepted: 08/25/2012] [Indexed: 12/28/2022]
Abstract
Malaria parasites interact with the host cell membrane inserting new proteins and inducing oxidative and phosphorylative changes of erythrocyte proteins. In the present report we monitored the time dependent oxidative and phosphorylative modifications induced by parasites in heterozygous beta thalassemia (Het-βThal). Het-βThal causes mild anemia and is known to determine a pro-oxidant milieu and a protective effect against severe malaria. In malaria cultures Het-βThal has been reported to induce accumulation of hemoglobin denaturation products. At early parasite development stages (rings), tyrosine hyper-phosphorylation of band 3 was the most notable modification, and at later development stages (trophozoites), additional membrane proteins displayed significant hyper-phosphorylation of their serine and tyrosine residues (adducins, ankyrin, catalase). Het-βThal also caused membrane destabilization. Free radical scavengers effectively inhibited the phosphorylative response and membrane destabilization. Kinase inhibitors exerted similar effects suggesting a causal relationship between oxidative stress, membrane protein hyper-phosphorylation and increased membrane damage exacerbated by Het-βThal. In conclusion, different lines of evidence suggest that Het-βThal enhances the redox stress caused by malaria parasites inducing its protective effect destabilizing the host cell membrane. This article is part of a Special Issue entitled: Integrated omics.
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Carta F, Lobina O, Mannu F, Ferru E, Pantaleo A, Orrù M, Turrini F. A 2DE approach for high-throughput antigen separation applicable to mAb production. Electrophoresis 2012; 33:2546-52. [DOI: 10.1002/elps.201100697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Omar Lobina
- Department of Genetic; Biological and Medical Chemistry; University of Turin; Turin; Italy
| | | | - Emanuela Ferru
- Department of Genetic; Biological and Medical Chemistry; University of Turin; Turin; Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences; University of Sassari; Sassari; Italy
| | | | - Francesco Turrini
- Department of Genetic; Biological and Medical Chemistry; University of Turin; Turin; Italy
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Agnello M, Benussi L, Bertani M, Bhang HC, Bonomi G, Botta E, Bregant M, Bressani T, Bufalino S, Busso L, Calvo D, Camerini P, Dalena B, De Mori F, D'Erasmo G, Fabbri FL, Feliciello A, Filippi A, Fiore EM, Fontana A, Fujioka H, Genova P, Gianotti P, Grion N, Lucherini V, Marcello S, Mirfakhrai N, Moia F, Morra O, Nagae T, Outa H, Pantaleo A, Paticchio V, Piano S, Rui R, Simonetti G, Wheadon R, Zenoni A, Gal A. Evidence for heavy hyperhydrogen (Λ)(6)h. Phys Rev Lett 2012; 108:042501. [PMID: 22400828 DOI: 10.1103/physrevlett.108.042501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Indexed: 05/31/2023]
Abstract
Evidence for the neutron-rich hypernucleus (Λ)(6)H is presented from the FINUDA experiment at DAΦNE, Frascati, studying (π+,π-) pairs in coincidence from the K(stop)(-) + (6)Li →(Λ)(6)H + π+ production reaction followed by (Λ)(6)H → (6)He + π- weak decay. The production rate of (Λ)(6) undergoing this two-body π- decay is determined to be (2.9 ± 2.0) × 10(-6)/K(stop)(-). Its binding energy, evaluated jointly from production and decay, is BΛ((Λ)(6)H) = (4.0 ± 1.1) MeV with respect to (5)H+Λ. A systematic difference of (0.98 ± 0.74) MeV between BΛ values derived separately from decay and from production is tentatively assigned to the (Λ)(6)H 0(g.s.)(+) → 1+ excitation.
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Affiliation(s)
- M Agnello
- Dipartimento di Fisica, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, Italy
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Pantaleo A, Ferru E, Vono R, Giribaldi G, Lobina O, Nepveu F, Ibrahim H, Nallet JP, Carta F, Mannu F, Pippia P, Campanella E, Low PS, Turrini F. New antimalarial indolone-N-oxides, generating radical species, destabilize the host cell membrane at early stages of Plasmodium falciparum growth: role of band 3 tyrosine phosphorylation. Free Radic Biol Med 2012; 52:527-36. [PMID: 22142474 PMCID: PMC3385926 DOI: 10.1016/j.freeradbiomed.2011.11.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 11/07/2011] [Accepted: 11/09/2011] [Indexed: 11/20/2022]
Abstract
Although indolone-N-oxide (INODs) genereting long-lived radicals possess antiplasmodial activity in the low-nanomolar range, little is known about their mechanism of action. To explore the molecular basis of INOD activity, we screened for changes in INOD-treated malaria-infected erythrocytes (Pf-RBCs) using a proteomics approach. At early parasite maturation stages, treatment with INODs at their IC(50) concentrations induced a marked tyrosine phosphorylation of the erythrocyte membrane protein band 3, whereas no effect was observed in control RBCs. After INOD treatment of Pf-RBCs we also observed: (i) accelerated formation of membrane aggregates containing hyperphosphorylated band 3, Syk kinase, and denatured hemoglobin; (ii) dose-dependent release of microvesicles containing the membrane aggregates; (iii) reduction in band 3 phosphorylation, Pf-RBC vesiculation, and antimalarial effect of INODs upon addition of Syk kinase inhibitors; and (iv) correlation between the IC(50) and the INOD concentrations required to induce band 3 phosphorylation and vesiculation. Together with previous data demonstrating that tyrosine phosphorylation of oxidized band 3 promotes its dissociation from the cytoskeleton, these results suggest that INODs cause a profound destabilization of the Pf-RBC membrane through a mechanism apparently triggered by the activation of a redox signaling pathway rather than direct oxidative damage.
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Affiliation(s)
- Antonella Pantaleo
- Department of Physiological, Biochemical, and Cell Sciences, University of Sassari, Sassari 07100, Italy.
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Agnello M, Benussi L, Bertani M, Bhang HC, Bonomi G, Botta E, Bregant M, Bressani T, Bufalino S, Busso L, Calvo D, Camerini P, Dalena B, De Mori F, D’Erasmo G, Fabbri FL, Feliciello A, Filippi A, Fiore EM, Fontana A, Fujioka H, Genova P, Gianotti P, Grion N, Lucherini V, Marcello S, Mirfakhrai N, Moia F, Morra O, Nagae T, Outa H, Pantaleo A, Paticchio V, Piano S, Rui R, Simonetti G, Wheadon R, Zenoni A, Gal A. Neutron-rich hypernuclei: evidence for 6ΛH and search for 9ΛHe. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123701023] [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: 11/14/2022] Open
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Khadjavi A, Barbero G, Destefanis P, Mandili G, Giribaldi G, Mannu F, Pantaleo A, Ceruti C, Bosio A, Rolle L, Turrini F, Fontana D. Evidence of Abnormal Tyrosine Phosphorylated Proteins in the Urine of Patients With Bladder Cancer: The Road Toward a New Diagnostic Tool? J Urol 2011; 185:1922-9. [DOI: 10.1016/j.juro.2010.12.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Indexed: 10/18/2022]
Affiliation(s)
- Amina Khadjavi
- Research Center for Experimental Medicine, University of Turin Medical School, Turin, Italy
- Department of Genetics, Biology and Biochemistry, University of Turin Medical School, Turin, Italy
- DIAPHAN Consortium, University of Turin Medical School, Turin, Italy
| | - Giovanna Barbero
- Department of Genetics, Biology and Biochemistry, University of Turin Medical School, Turin, Italy
| | - Paolo Destefanis
- Divisione Universitaria di Urologia 2-Ospedale San Giovanni Battista Molinette, University of Turin Medical School, Turin, Italy
| | - Giorgia Mandili
- Research Center for Experimental Medicine, University of Turin Medical School, Turin, Italy
- Department of Genetics, Biology and Biochemistry, University of Turin Medical School, Turin, Italy
| | - Giuliana Giribaldi
- Department of Genetics, Biology and Biochemistry, University of Turin Medical School, Turin, Italy
- DIAPHAN Consortium, University of Turin Medical School, Turin, Italy
| | - Franca Mannu
- DIAPHAN Consortium, University of Turin Medical School, Turin, Italy
- Nurex S. R. L., Sassari, Italy
| | | | - Carlo Ceruti
- Divisione Universitaria di Urologia 2-Ospedale San Giovanni Battista Molinette, University of Turin Medical School, Turin, Italy
| | - Andrea Bosio
- Divisione Universitaria di Urologia 2-Ospedale San Giovanni Battista Molinette, University of Turin Medical School, Turin, Italy
| | - Luigi Rolle
- Divisione Universitaria di Urologia 2-Ospedale San Giovanni Battista Molinette, University of Turin Medical School, Turin, Italy
| | - Francesco Turrini
- Research Center for Experimental Medicine, University of Turin Medical School, Turin, Italy
- DIAPHAN Consortium, University of Turin Medical School, Turin, Italy
| | - Dario Fontana
- DIAPHAN Consortium, University of Turin Medical School, Turin, Italy
- Divisione Universitaria di Urologia 2-Ospedale San Giovanni Battista Molinette, University of Turin Medical School, Turin, Italy
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