1
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Locatelli L, Fedele G, Maier JA. The Role of Txnip in Mediating Low-Magnesium-Driven Endothelial Dysfunction. Int J Mol Sci 2023; 24:ijms24098351. [PMID: 37176057 PMCID: PMC10179684 DOI: 10.3390/ijms24098351] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Magnesium deficiency is associated with a greater risk of developing cardiovascular diseases since this cation is fundamental in regulating vascular function. This clinical evidence is sustained by in vitro studies showing that culturing endothelial cells in low concentrations of magnesium promotes the acquisition of a pro-oxidant and pro-inflammatory phenotype. Here, we show that the increase in reactive oxygen species in endothelial cells in low-magnesium-containing medium is due to the upregulation of the pro-oxidant protein thioredoxin interacting protein (TXNIP), with a consequent accumulation of lipid droplets and increase in endothelial permeability through the downregulation and relocalization of junctional proteins. Silencing TXNIP restores the endothelial barrier and lipid content. Because (i) mitochondria serve multiple roles in shaping cell function, health and survival and (ii) mitochondria are the main intracellular stores of magnesium, it is of note that no significant alterations were detected in their morphology and dynamics in our experimental model. We conclude that TXNIP upregulation contributes to low-magnesium-induced endothelial dysfunction in vitro.
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Affiliation(s)
- Laura Locatelli
- Department of Biomedical and Clinical Sciences, Università di Milano, Via GB Grassi 74, 20157 Milano, Italy
| | - Giorgia Fedele
- Department of Biomedical and Clinical Sciences, Università di Milano, Via GB Grassi 74, 20157 Milano, Italy
| | - Jeanette A Maier
- Department of Biomedical and Clinical Sciences, Università di Milano, Via GB Grassi 74, 20157 Milano, Italy
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2
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Pinto-Pacheco B, Lin Q, Yan CW, de Melo Silva S, Buccella D. Lanthanide-based luminescent probes for biological magnesium: accessing polyphosphate-bound Mg 2. Chem Commun (Camb) 2023; 59:3586-3589. [PMID: 36883365 PMCID: PMC10408037 DOI: 10.1039/d2cc07095b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Biomolecule-bound Mg2+ species, particularly polyphosphate complexes, represent a large and dynamic fraction of the total cellular magnesium that is essential for cellular function but remains invisible to most indicators. Here we report a new family of Eu(III)-based indicators, the MagQEu family, functionalized with a 4-oxo-4H-quinolizine-3-carboxylic acid metal recognition group/sensitization antenna for turn-on, luminescence-based detection of biologically relevant Mg2+ species.
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Affiliation(s)
- Brismar Pinto-Pacheco
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA.
| | - Qitian Lin
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA.
| | - Claudia W Yan
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA.
| | - Symara de Melo Silva
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA.
| | - Daniela Buccella
- Department of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA.
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3
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Castiglioni S, Locatelli L, Fedele G, Cazzaniga A, Malucelli E, Iotti S, Maier JA. The Interplay between TRPM7 and MagT1 in Maintaining Endothelial Magnesium Homeostasis. MEMBRANES 2023; 13:membranes13030286. [PMID: 36984673 PMCID: PMC10052067 DOI: 10.3390/membranes13030286] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 05/27/2023]
Abstract
The transient receptor potential cation channel subfamily M member 7 (TRPM7) is an ubiquitous channel fused to an α-kinase domain involved in magnesium (Mg) transport, and its level of expression has been proposed as a marker of endothelial function. To broaden our present knowledge about the role of TRPM7 in endothelial cells, we generated stable transfected Human Endothelial Cells derived from the Umbilical Vein (HUVEC). TRPM7-silencing HUVEC maintain the actin fibers' organization and mitochondrial network. They produce reduced amounts of reactive oxygen species and grow faster than controls. Intracellular Mg concentration does not change in TRPM7-silencing or -expressing HUVEC, while some differences emerged when we analyzed intracellular Mg distribution. While the levels of the plasma membrane Mg transporter Solute Carrier family 41 member 1 (SLC41A1) and the mitochondrial channel Mrs2 remain unchanged, the highly selective Magnesium Transporter 1 (MagT1) is upregulated in TRPM7-silencing HUVEC through transcriptional regulation. We propose that the increased amounts of MagT1 grant the maintenance of intracellular Mg concentrations when TRPM7 is not expressed in endothelial cells.
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Affiliation(s)
- Sara Castiglioni
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
| | - Laura Locatelli
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
| | - Giorgia Fedele
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
| | - Alessandra Cazzaniga
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
- National Institute of Biostructures and Biosystems, 00136 Rome, Italy
| | - Jeanette A. Maier
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
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4
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Cazzaniga A, Fedele G, Castiglioni S, Maier JA. The Presence of Blood-Brain Barrier Modulates the Response to Magnesium Salts in Human Brain Organoids. Int J Mol Sci 2022; 23:ijms23095133. [PMID: 35563524 PMCID: PMC9104490 DOI: 10.3390/ijms23095133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/26/2022] [Accepted: 05/03/2022] [Indexed: 12/22/2022] Open
Abstract
Magnesium (Mg) is fundamental in the brain, where it regulates metabolism and neurotransmission and protects against neuroinflammation. To obtain insights into the molecular basis of Mg action in the brain, we investigated the effects of Mg in human brain organoids, a revolutionary 3D model to study neurobiology and neuropathology. In particular, brain organoids derived from human induced pluripotent stem cells were cultured in the presence or in the absence of an in vitro-generated blood–brain barrier (BBB), and then exposed to 1 or 5 mM concentrations of inorganic and organic Mg salts (Mg sulphate (MgSO4); Mg pidolate (MgPid)). We evaluated the modulation of NMDA and GABAergic receptors, and BDNF. Our data suggest that the presence of the BBB is essential for Mg to exert its effects on brain organoids, and that 5 mM of MgPid is more effective than MgSO4 in increasing the levels of GABA receptors and BDNF, and decreasing those of NMDA receptor. These results might illuminate novel pathways explaining the neuroprotective role of Mg.
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Affiliation(s)
- Alessandra Cazzaniga
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy; (G.F.); (S.C.); (J.A.M.)
- Correspondence:
| | - Giorgia Fedele
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy; (G.F.); (S.C.); (J.A.M.)
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy; (G.F.); (S.C.); (J.A.M.)
| | - Jeanette A. Maier
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy; (G.F.); (S.C.); (J.A.M.)
- Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa), Università di Milano, 20133 Milano, Italy
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5
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Li L, Ding Y, Zhang C, Xian H, Chen S, Dai G, Wang X, Ye C. Ratiometric Fluorescence Detection of Mg 2+ Based on Regulating Crown-Ether Modified Annihilators for Triplet–Triplet Annihilation Upconversion. J Phys Chem B 2022; 126:3276-3282. [DOI: 10.1021/acs.jpcb.2c00928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lin Li
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Yilei Ding
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Chun Zhang
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Haiyu Xian
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Shuoran Chen
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Guoliang Dai
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, 215009, P.R. China
| | - Xiaomei Wang
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Changqing Ye
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
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Magnesium Homeostasis in Myogenic Differentiation-A Focus on the Regulation of TRPM7, MagT1 and SLC41A1 Transporters. Int J Mol Sci 2022; 23:ijms23031658. [PMID: 35163580 PMCID: PMC8836031 DOI: 10.3390/ijms23031658] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 02/01/2023] Open
Abstract
Magnesium (Mg) is essential for skeletal muscle health, but little is known about the modulation of Mg and its transporters in myogenic differentiation. Here, we show in C2C12 murine myoblasts that Mg concentration fluctuates during their differentiation to myotubes, declining early in the process and reverting to basal levels once the cells are differentiated. The level of the Mg transporter MagT1 decreases at early time points and is restored at the end of the process, suggesting a possible role in the regulation of intracellular Mg concentration. In contrast, TRPM7 is rapidly downregulated and remains undetectable in myotubes. The reduced amounts of TRPM7 and MagT1 are due to autophagy, one of the proteolytic systems activated during myogenesis and essential for the membrane fusion process. Moreover, we investigated the levels of SLC41A1, which increase once cells are differentiated, mainly through transcriptional regulation. In conclusion, myogenesis is associated with alterations of Mg homeostasis finely tuned through the modulation of MagT1, TRPM7 and SLC41A1.
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7
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Hiruta Y, Shindo Y, Oka K, Citterio D. Small Molecule-based Alkaline-earth Metal Ion Fluorescent Probes for Imaging Intracellular and Intercellular Multiple Signals. CHEM LETT 2021. [DOI: 10.1246/cl.200917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuki Hiruta
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Yutaka Shindo
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Kotaro Oka
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Daniel Citterio
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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8
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Cappadone C, Malucelli E, Zini M, Farruggia G, Picone G, Gianoncelli A, Notargiacomo A, Fratini M, Pignatti C, Iotti S, Stefanelli C. Assessment and Imaging of Intracellular Magnesium in SaOS-2 Osteosarcoma Cells and Its Role in Proliferation. Nutrients 2021; 13:nu13041376. [PMID: 33923895 PMCID: PMC8073505 DOI: 10.3390/nu13041376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/15/2021] [Accepted: 04/17/2021] [Indexed: 12/13/2022] Open
Abstract
Magnesium is an essential nutrient involved in many important processes in living organisms, including protein synthesis, cellular energy production and storage, cell growth and nucleic acid synthesis. In this study, we analysed the effect of magnesium deficiency on the proliferation of SaOS-2 osteosarcoma cells. When quiescent magnesium-starved cells were induced to proliferate by serum addition, the magnesium content was 2–3 times lower in cells maintained in a medium without magnesium compared with cells growing in the presence of the ion. Magnesium depletion inhibited cell cycle progression and caused the inhibition of cell proliferation, which was associated with mTOR hypophosphorylation at Serine 2448. In order to map the intracellular magnesium distribution, an analytical approach using synchrotron-based X-ray techniques was applied. When cell growth was stimulated, magnesium was mainly localized near the plasma membrane in cells maintained in a medium without magnesium. In non-proliferating cells growing in the presence of the ion, high concentration areas inside the cell were observed. These results support the role of magnesium in the control of cell proliferation, suggesting that mTOR may represent an important target for the antiproliferative effect of magnesium. Selective control of magnesium availability could be a useful strategy for inhibiting osteosarcoma cell growth.
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Affiliation(s)
- Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 33, 40127 Bologna, Italy; (E.M.); (G.F.); (G.P.); (S.I.)
- Correspondence:
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 33, 40127 Bologna, Italy; (E.M.); (G.F.); (G.P.); (S.I.)
| | - Maddalena Zini
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 33, 40126 Bologna, Italy; (M.Z.); (C.P.)
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 33, 40127 Bologna, Italy; (E.M.); (G.F.); (G.P.); (S.I.)
- INBB—Biostructures and Biosystems National Institute, 00136 Rome, Italy
| | - Giovanna Picone
- Department of Pharmacy and Biotechnology, University of Bologna, 33, 40127 Bologna, Italy; (E.M.); (G.F.); (G.P.); (S.I.)
| | | | - Andrea Notargiacomo
- Institute for Photonics and Nanotechnologies, Consiglio Nazionale delle Ricerche, 00156 Rome, Italy;
| | - Michela Fratini
- Institute of Nanotechnology-CNR c/o Physics Department at ‘Sapienza’ University, 00185 Rome, Italy;
- IRCCS Fondazione Santa Lucia, 00179 Rome, Italy
| | - Carla Pignatti
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 33, 40126 Bologna, Italy; (M.Z.); (C.P.)
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 33, 40127 Bologna, Italy; (E.M.); (G.F.); (G.P.); (S.I.)
- INBB—Biostructures and Biosystems National Institute, 00136 Rome, Italy
| | - Claudio Stefanelli
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47921 Rimini, Italy;
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9
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Schiroli D, Marraccini C, Zanetti E, Ragazzi M, Gianoncelli A, Quartieri E, Gasparini E, Iotti S, Baricchi R, Merolle L. Imbalance of Mg Homeostasis as a Potential Biomarker in Colon Cancer. Diagnostics (Basel) 2021; 11:diagnostics11040727. [PMID: 33923883 PMCID: PMC8073761 DOI: 10.3390/diagnostics11040727] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/12/2021] [Accepted: 04/15/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Increasing evidences support a correlation between magnesium (Mg) homeostasis and colorectal cancer (CRC). Nevertheless, the role of Mg and its transporters as diagnostic markers in CRC is still a matter of debate. In this study we combined X-ray Fluorescence Microscopy and databases information to investigate the possible correlation between Mg imbalance and CRC. METHODS CRC tissue samples and their non-tumoural counterpart from four patients were collected and analysed for total Mg level and distribution by X-Ray Fluorescence Microscopy. We also reviewed the scientific literature and the main tissue expression databases to collect data on Mg transporters expression in CRC. RESULTS We found a significantly higher content of total Mg in CRC samples when compared to non-tumoural tissues. Mg distribution was also impaired in CRC. Conversely, we evidenced an uncertain correlation between Mg transporters expression and colon malignancies. DISCUSSION Although further studies are necessary to determine the correlation between different cancer types and stages, this is the first report proposing the measurement of Mg tissue localisation as a marker in CRC. This study represents thus a proof-of-concept that paves the way for the design of a larger prospective investigation of Mg in CRC.
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Affiliation(s)
- Davide Schiroli
- Transfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (D.S.); (E.Q.); (R.B.); (L.M.)
| | - Chiara Marraccini
- Transfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (D.S.); (E.Q.); (R.B.); (L.M.)
- Correspondence: ; Tel.: +39-0522-295057
| | - Eleonora Zanetti
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (E.Z.); (M.R.)
| | - Moira Ragazzi
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (E.Z.); (M.R.)
| | | | - Eleonora Quartieri
- Transfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (D.S.); (E.Q.); (R.B.); (L.M.)
- Department of Medicine and Surgery, University of Parma, 43125 Parma, Italy
| | - Elisa Gasparini
- Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy;
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy;
- National Institute of Biostructures and Biosystems, 00136 Rome, Italy
| | - Roberto Baricchi
- Transfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (D.S.); (E.Q.); (R.B.); (L.M.)
| | - Lucia Merolle
- Transfusion Medicine Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (D.S.); (E.Q.); (R.B.); (L.M.)
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10
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Fiorentini D, Cappadone C, Farruggia G, Prata C. Magnesium: Biochemistry, Nutrition, Detection, and Social Impact of Diseases Linked to Its Deficiency. Nutrients 2021; 13:1136. [PMID: 33808247 PMCID: PMC8065437 DOI: 10.3390/nu13041136] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 12/11/2022] Open
Abstract
Magnesium plays an important role in many physiological functions. Habitually low intakes of magnesium and in general the deficiency of this micronutrient induce changes in biochemical pathways that can increase the risk of illness and, in particular, chronic degenerative diseases. The assessment of magnesium status is consequently of great importance, however, its evaluation is difficult. The measurement of serum magnesium concentration is the most commonly used and readily available method for assessing magnesium status, even if serum levels have no reliable correlation with total body magnesium levels or concentrations in specific tissues. Therefore, this review offers an overview of recent insights into magnesium from multiple perspectives. Starting from a biochemical point of view, it aims at highlighting the risk due to insufficient uptake (frequently due to the low content of magnesium in the modern western diet), at suggesting strategies to reach the recommended dietary reference values, and at focusing on the importance of detecting physiological or pathological levels of magnesium in various body districts, in order to counteract the social impact of diseases linked to magnesium deficiency.
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Affiliation(s)
| | | | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, 40126 Bologna, Italy; (D.F.); (C.C.); (C.P.)
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11
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12
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Li LY, Han ZZ, Zeng RC, Qi WC, Zhai XF, Yang Y, Lou YT, Gu T, Xu D, Duan JZ. Microbial ingress and in vitro degradation enhanced by glucose on bioabsorbable Mg-Li-Ca alloy. Bioact Mater 2020; 5:902-916. [PMID: 32637753 PMCID: PMC7329939 DOI: 10.1016/j.bioactmat.2020.06.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/07/2020] [Accepted: 06/08/2020] [Indexed: 01/10/2023] Open
Abstract
Biodegradable magnesium alloys are challenging to be implanted in patients with hyperglycemia and diabetes. A hypothesis is suggested that glucose accelerates microbial ingress and in vitro degradation of Mg-Li-Ca implants. Corrosion resistance and mechanical properties was demonstrated using electrochemical, hydrogen evolution and tensile tests. The bacteria from Hank's solution were isolated via 16S rRNA gene analysis. The results revealed that Mg-1Li-1Ca alloy exhibited different responses to Hank's solution with and without glucose. The solution acidity was ascribed to Microbacterium hominis and Enterobacter xiangfangensis, indicating that glucose promoted microbial activity and degradation and deterioration in mechanical property of Mg-1Li-1Ca alloy.
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Affiliation(s)
- Ling-Yu Li
- Corrosion Laboratory for Light Metals, College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Zhuang-Zhuang Han
- Corrosion Laboratory for Light Metals, College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Rong-Chang Zeng
- Corrosion Laboratory for Light Metals, College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China.,School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
| | - Wei-Chen Qi
- Corrosion Laboratory for Light Metals, College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Xiao-Fan Zhai
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266590, China
| | - Yi Yang
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang, 110819, China
| | - Yun-Tian Lou
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang, 110819, China
| | - Tingyue Gu
- Department of Chemical & Biomolecular Engineering, Russ College of Engineering and Technology, Ohio University, Athens, OH, 45701-2979, USA
| | - Dake Xu
- Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang, 110819, China
| | - Ji-Zhou Duan
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266590, China
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13
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Picone G, Cappadone C, Pasini A, Lovecchio J, Cortesi M, Farruggia G, Lombardo M, Gianoncelli A, Mancini L, Ralf H. M, Donato S, Giordano E, Malucelli E, Iotti S. Analysis of Intracellular Magnesium and Mineral Depositions during Osteogenic Commitment of 3D Cultured Saos2 Cells. Int J Mol Sci 2020; 21:ijms21072368. [PMID: 32235449 PMCID: PMC7177893 DOI: 10.3390/ijms21072368] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/20/2020] [Accepted: 03/26/2020] [Indexed: 12/23/2022] Open
Abstract
In this study, we explore the behaviour of intracellular magnesium during bone phenotype modulation in a 3D cell model built to mimic osteogenesis. In addition, we measured the amount of magnesium in the mineral depositions generated during osteogenic induction. A two-fold increase of intracellular magnesium content was found, both at three and seven days from the induction of differentiation. By X-ray microscopy, we characterized the morphology and chemical composition of the mineral depositions secreted by 3D cultured differentiated cells finding a marked co-localization of Mg with P at seven days of differentiation. This is the first experimental evidence on the presence of Mg in the mineral depositions generated during biomineralization, suggesting that Mg incorporation occurs during the bone forming process. In conclusion, this study on the one hand attests to an evident involvement of Mg in the process of cell differentiation, and, on the other hand, indicates that its multifaceted role needs further investigation.
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Affiliation(s)
- Giovanna Picone
- Department of Pharmacy and Biotechnology, University of Bologna, 33-40126 Bologna, Italy; (G.P.)
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 33-40126 Bologna, Italy; (G.P.)
| | - Alice Pasini
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi” (DEI), University of Bologna 50, 47522 Cesena, Italy
| | - Joseph Lovecchio
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi” (DEI), University of Bologna 50, 47522 Cesena, Italy
| | - Marilisa Cortesi
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi” (DEI), University of Bologna 50, 47522 Cesena, Italy
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 33-40126 Bologna, Italy; (G.P.)
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy
| | - Marco Lombardo
- Department of Chemistry “G. Ciamician”, Alma Mater Studiorum–Università di Bologna, via Selmi 2, I-40126 Bologna, Italy
| | | | - Lucia Mancini
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, 34149 Basovizza, Italy
| | - Menk Ralf H.
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, 34149 Basovizza, Italy
- INFN section of Trieste, 2-34127 Trieste, Italy
- Department of Medical Imaging, University of Saskatchewan, Saskatoon, SK S7N 5A2, Canada
| | - Sandro Donato
- Elettra-Sincrotrone Trieste S.C.p.A., Trieste, 34149 Basovizza, Italy
- Department of Physics, University of Calabria, 87036 Arcavacata di Rende (CS), Italy
| | - Emanuele Giordano
- Department of Electrical, Electronic and Information Engineering “Guglielmo Marconi” (DEI), University of Bologna 50, 47522 Cesena, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 33-40126 Bologna, Italy; (G.P.)
- Correspondence: ; Tel.: +39-051-209-5414
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 33-40126 Bologna, Italy; (G.P.)
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy
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14
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Zhang Y, Li H, Jiang D, Pu S. A highly selective fluorescent chemosensor for Mg
2+
based on a diarylethene with a quinoxaline unit. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.4030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yaping Zhang
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science and Technology Normal University Nanchang China
| | - Hui Li
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science and Technology Normal University Nanchang China
| | - Duohua Jiang
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science and Technology Normal University Nanchang China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science and Technology Normal University Nanchang China
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15
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Murata O, Shindo Y, Ikeda Y, Iwasawa N, Citterio D, Oka K, Hiruta Y. Near-Infrared Fluorescent Probes for Imaging of Intracellular Mg 2+ and Application to Multi-Color Imaging of Mg 2+, ATP, and Mitochondrial Membrane Potential. Anal Chem 2019; 92:966-974. [PMID: 31724392 DOI: 10.1021/acs.analchem.9b03872] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The magnesium ion (Mg2+) is an essential cation to maintain proper cellular activities. To visualize the dynamics and functions of Mg2+, there is a great need for the development of Mg2+-selective fluorescent probes. However, conventional Mg2+ fluorescent probes are falling behind in low selectivity and poor fluorescence color variation. In this report, to make available a distinct color window for multi-color imaging, we designed and synthesized highly Mg2+-selective and near-infrared (NIR) fluorescent probes, the KMG-500 series consisting of a charged β-diketone as a selective binding site for Mg2+ and a Si-rhodamine residue as the NIR fluorophore, which showed photoinduced electron transfer (PeT)-type OFF-ON response to the concentration of Mg2+. Two types of KMG-500 series probes, tetramethyl substituted Si-rhodamine KMG-501 and tetraethyl substituted Si-rhodamine KMG-502, were synthesized for the evaluation of cell permeability. For intracellular application, the membrane-permeable acetoxymethyl derivative KMG-501 (KMG-501AM) was synthesized and allowed to stably stain cultured rat hippocampal neurons during imaging of intracellular Mg2+. On the other hand, KMG-502 was cell membrane permeable without AM modification, preventing the probe from staying inside cells during imaging. KMG-501 distributed mainly in the cytoplasm and partially localized in lysosomes and mitochondria in cultured rat hippocampal neurons. Mg2+ increase in response to the FCCP uncoupler inducing depolarization of the mitochondrial inner membrane potential was detected in the KMG-501 stained neurons. For the first time, KMG-501 succeeded in imaging intracellular Mg2+ dynamics with NIR fluorescence. Moreover, it allows one to simultaneously visualize changes in Mg2+ and ATP concentration and also mitochondrial inner membrane potential and their interactions. This probe is expected to be a strong tool for multi-color imaging of intracellular Mg2+.
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Affiliation(s)
- Osamu Murata
- Department of Applied Chemistry , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa , Japan
| | - Yutaka Shindo
- Department of Biosciences and Informatics , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa , Japan
| | - Yuma Ikeda
- Department of Applied Chemistry , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa , Japan
| | - Naoko Iwasawa
- Department of Applied Chemistry , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa , Japan
| | - Daniel Citterio
- Department of Applied Chemistry , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa , Japan
| | - Kotaro Oka
- Department of Biosciences and Informatics , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa , Japan.,Graduate Institute of Medicine, College of Medicine , Kaohsiung Medical University , Kaohsiung , Taiwan.,Waseda Research Institute for Science and Engineering , 2-2 Wakamatsucho , Shinjuku , Tokyo , Japan
| | - Yuki Hiruta
- Department of Applied Chemistry , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama , Kanagawa , Japan
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16
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Moscheni C, Malucelli E, Castiglioni S, Procopio A, De Palma C, Sorrentino A, Sartori P, Locatelli L, Pereiro E, Maier JA, Iotti S. 3D Quantitative and Ultrastructural Analysis of Mitochondria in a Model of Doxorubicin Sensitive and Resistant Human Colon Carcinoma Cells. Cancers (Basel) 2019; 11:cancers11091254. [PMID: 31461915 PMCID: PMC6769783 DOI: 10.3390/cancers11091254] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/23/2019] [Accepted: 08/23/2019] [Indexed: 12/27/2022] Open
Abstract
Drug resistance remains a major obstacle in cancer treatment. Because mitochondria mediate metabolic reprogramming in cancer drug resistance, we focused on these organelles in doxorubicin sensitive and resistant colon carcinoma cells. We employed soft X-ray cryo nano-tomography to map three-dimensionally these cells at nanometer-resolution and investigate the correlation between mitochondrial morphology and drug resistance phenotype. We have identified significant structural differences in the morphology of mitochondria in the two strains of cancer cells, as well as lower amounts of Reactive oxygen species (ROS) in resistant than in sensitive cells. We speculate that these features could elicit an impaired mitochondrial communication in resistant cells, thus preventing the formation of the interconnected mitochondrial network as clearly detected in the sensitive cells. In fact, the qualitative and quantitative three-dimensional assessment of the mitochondrial morphology highlights a different structural organization in resistant cells, which reflects a metabolic cellular adaptation functional to survive to the offense exerted by the antineoplastic treatment.
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Affiliation(s)
- Claudia Moscheni
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy.
| | - Alessandra Procopio
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
| | - Clara De Palma
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
- Unit of Clinical Pharmacology, "Luigi Sacco" University Hospital, ASST Fatebenefratelli Sacco, 20157 Milan, Italy
| | - Andrea Sorrentino
- ALBA Synchrotron Light Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Patrizia Sartori
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy
| | - Laura Locatelli
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
| | - Eva Pereiro
- ALBA Synchrotron Light Facility, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Jeanette A Maier
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi di Milano, 20157 Milano, Italy
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy
- National Institute of Biostructures and Biosystems, 00136 Roma, Italy
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17
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Merolle L, Sponder G, Sargenti A, Mastrototaro L, Cappadone C, Farruggia G, Procopio A, Malucelli E, Parisse P, Gianoncelli A, Aschenbach JR, Kolisek M, Iotti S. Overexpression of the mitochondrial Mg channel MRS2 increases total cellular Mg concentration and influences sensitivity to apoptosis. Metallomics 2019; 10:917-928. [PMID: 29952392 DOI: 10.1039/c8mt00050f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The mechanism of action of the mitochondrial Mg channel MRS2 and its involvement in cell viability remain unclear. Deletion of MRS2 has been reported to abolish Mg influx into mitochondria, to induce functional defects in mitochondrial organelles, and to result in cell death. We evaluated whether MRS2 expression had an impact on total Mg cellular content by inducing the overexpression of MRS2 in HEK-293 cells. We observed a remarkable increase of total intracellular Mg concentration in cells overexpressing MRS2 compared with control cells. In order to investigate whether and in what manner the detected Mg increment was involved in the MRS2 influence on cell viability, we treated MRS2-overexpressing cells with two known apoptotic inducers. We found that cells overexpressing the MRS2 channel became less responsive to these pharmacological insults. Our experimental evidence indicates that the MRS2 channel controls overall intracellular Mg levels, the alteration of which might have a role in the molecular signaling leading to apoptotic cell death.
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Affiliation(s)
- Lucia Merolle
- Transfusion Medicine Unit, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, 42123, Italy.
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18
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Castiglioni S, Romeo V, Locatelli L, Zocchi M, Zecchini S, Maier JAM. The simultaneous downregulation of TRPM7 and MagT1 in human mesenchymal stem cells in vitro: Effects on growth and osteogenic differentiation. Biochem Biophys Res Commun 2019; 513:159-165. [PMID: 30952425 DOI: 10.1016/j.bbrc.2019.03.178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 03/26/2019] [Indexed: 12/19/2022]
Abstract
The magnesium transporters TRPM7 and MagT1 are overexpressed in osteoblastogenesis. We have shown that silencing either TRPM7 or MagT1 accelerates the osteogenic differentiation of human bone mesenchymal stem cells. Here we demonstrate that the simultaneous downregulation of TRPM7 and MagT1 inhibits cell growth and activates autophagy, which is required in the early phases of osteoblastogenesis. In TRPM7/MagT1 downregulating cells the expression of two transcription factors required for activating osteogenesis, i.e. RUNX2 and OSTERIX, is induced more than in the controls both in the presence and in the absence of osteogenic stimuli, while COL1A1 is upregulated in co-silencing cells as much as in the controls. This explains why we found no differences in calcium deposition. We conclude that one of the two transporters should be expressed to accelerate osteogenic differentiation.
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Affiliation(s)
- Sara Castiglioni
- Dipartimento di Scienze Biomediche e Cliniche L. Sacco, Università di Milano, Milano, I-20157, Italy
| | - Valentina Romeo
- Dipartimento di Scienze Biomediche e Cliniche L. Sacco, Università di Milano, Milano, I-20157, Italy
| | - Laura Locatelli
- Dipartimento di Scienze Biomediche e Cliniche L. Sacco, Università di Milano, Milano, I-20157, Italy
| | - Monica Zocchi
- Dipartimento di Scienze Biomediche e Cliniche L. Sacco, Università di Milano, Milano, I-20157, Italy
| | - Silvia Zecchini
- Dipartimento di Scienze Biomediche e Cliniche L. Sacco, Università di Milano, Milano, I-20157, Italy
| | - Jeanette A M Maier
- Dipartimento di Scienze Biomediche e Cliniche L. Sacco, Università di Milano, Milano, I-20157, Italy.
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19
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Gao R, Xu L, Hao C, Xu C, Kuang H. Circular Polarized Light Activated Chiral Satellite Nanoprobes for the Imaging and Analysis of Multiple Metal Ions in Living Cells. Angew Chem Int Ed Engl 2019; 58:3913-3917. [DOI: 10.1002/anie.201814282] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Rui Gao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Liguang Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Changlong Hao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Chuanlai Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Hua Kuang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
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20
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Gao R, Xu L, Hao C, Xu C, Kuang H. Circular Polarized Light Activated Chiral Satellite Nanoprobes for the Imaging and Analysis of Multiple Metal Ions in Living Cells. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814282] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Rui Gao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Liguang Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Changlong Hao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Chuanlai Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
| | - Hua Kuang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of EducationInternational Joint Research Laboratory for Biointerface and BiodetectionState Key Lab of Food Science and TechnologySchool of Food Science and TechnologyJiangnan University Wuxi Jiangsu 214122 P. R. China
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21
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Sargenti A, Candeo A, Farruggia G, D'Andrea C, Cappadone C, Malucelli E, Valentini G, Taroni P, Iotti S. Fluorescence lifetime imaging of intracellular magnesium content in live cells. Analyst 2019; 144:1876-1880. [PMID: 30810548 DOI: 10.1039/c8an02379d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The first detailed analysis of FLIM applications for Mg cell imaging is presented. We employed the Mg-sensitive fluorescent dye named DCHQ5, a derivative of diaza-18-crown-6 ethers appended with two 8-hydroxyquinoline groups, to perform fluorescence lifetime imaging in control and Mg deprived SaOS-2 live cells, which contain different concentrations of magnesium. We found that the lifetime maps are almost uniform all over the cells and, most relevantly, we showed that the ratio of the amplitude terms is related to the magnesium intracellular concentration.
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Affiliation(s)
- Azzurra Sargenti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
| | - Alessia Candeo
- Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20113, Milano, Italy
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy. and National Institute of Biostructures and Biosystems (NIBB), Rome, Italy
| | - Cosimo D'Andrea
- Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20113, Milano, Italy
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
| | - Gianluca Valentini
- Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20113, Milano, Italy
| | - Paola Taroni
- Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20113, Milano, Italy
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy. and National Institute of Biostructures and Biosystems (NIBB), Rome, Italy
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22
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Magnesium Is a Key Regulator of the Balance between Osteoclast and Osteoblast Differentiation in the Presence of Vitamin D₃. Int J Mol Sci 2019; 20:ijms20020385. [PMID: 30658432 PMCID: PMC6358963 DOI: 10.3390/ijms20020385] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/21/2018] [Accepted: 01/12/2019] [Indexed: 01/28/2023] Open
Abstract
Magnesium (Mg) is crucial for bone health. Low concentrations of Mg inhibit the activity of osteoblasts while promoting that of osteoclasts, with the final result of inducing osteopenia. Conversely, little is known about the effects of high concentrations of extracellular Mg on osteoclasts and osteoblasts. Since the differentiation and activation of these cells is coordinated by vitamin D₃ (VD3), we investigated the effects of high extracellular Mg, as well as its impact on VD3 activity, in these cells. U937 cells were induced to osteoclastic differentiation by VD3 in the presence of supra-physiological concentrations (>1 mM) of extracellular Mg. The effect of high Mg concentrations was also studied in human bone-marrow-derived mesenchymal stem cells (bMSCs) induced to differentiate into osteoblasts by VD3. We demonstrate that high extra-cellular Mg levels potentiate VD3-induced osteoclastic differentiation, while decreasing osteoblastogenesis. We hypothesize that Mg might reprogram VD3 activity on bone remodeling, causing an unbalanced activation of osteoclasts and osteoblasts.
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23
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24
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Han X, Song X, Li B, Yu F, Chen L. A near-infrared fluorescent probe for sensitive detection and imaging of sulfane sulfur in living cells and in vivo. Biomater Sci 2018; 6:672-682. [PMID: 29431773 DOI: 10.1039/c7bm00951h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Sulfane sulfur refers to ionized sulfur that is reversibly attached to other sulfur atoms in the form of 6-valence electrons (S0). Sulfane sulfur possesses stronger nucleophilicity and reducibility than hydrogen sulfide in a series of physiological reactions, which probably makes sulfane sulfur the actual signal molecule in cells. Herein, we designed and synthesized a near-infrared (NIR) fluorescent probe BD-diSH for sensitive detection and imaging of sulfane sulfur in living cells and in vivo. The probe BD-diSH is composed of two moieties: the fluorophore azo-BODIPY and the sulfane sulfur recognition unit, viz., 2-mercapto benzoate. BD-diSH displayed high sensitivity and selectivity towards sulfane sulfur. The mercapto group (-SH) of 2-mercapto benzoic acid can nucleophilically capture the sulfur atom of thiosulfoxide tautomers in sulfane sulfur to form -SSH. The group -SSH will immediately induce intramolecular cyclization reaction and release the azo-BODIPY fluorophore to emit NIR fluorescence. The probe BD-diSH was successfully applied to detect and image sulfane sulfur in the cytoplasm of the living cells. The results illustrated that the endogenous and exogenous sulfane sulfur level changed depending on different cell lines. BD-diSH was also capable of imaging the level changes of sulfane sulfur in mice. The above applications make our new probe a potential chemical tool for the study of physiological and pathological functions of sulfur sulfide in living cells and in vivo.
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Affiliation(s)
- Xiaoyue Han
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Centre for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
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25
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Ungati H, Govindaraj V, Mugesh G. The Remarkable Effect of Halogen Substitution on the Membrane Transport of Fluorescent Molecules in Living Cells. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201804128 erratum in: angew chem int ed engl.2019; 58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Affiliation(s)
- Harinarayana Ungati
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Vijayakumar Govindaraj
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
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26
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Lvova L, Caroleo F, Garau A, Lippolis V, Giorgi L, Fusi V, Zaccheroni N, Lombardo M, Prodi L, Di Natale C, Paolesse R. A Fluorescent Sensor Array Based on Heteroatomic Macrocyclic Fluorophores for the Detection of Polluting Species in Natural Water Samples. Front Chem 2018; 6:258. [PMID: 30003078 PMCID: PMC6032370 DOI: 10.3389/fchem.2018.00258] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 06/08/2018] [Indexed: 12/18/2022] Open
Abstract
The development of a novel all-solid-state optical sensor array based on heteroatomic macrocyclic fluorophores (diaza-crown ether, metallocorrole and pyridinophans) for the photographic analysis of liquid media, is presented. The sensitivity of the new optical system toward a number of different species (cations: Li+, K+, Na+, NH4+, Mg2+, Ca2+, Co2+, Cu2+, Zn2+, Cd2+, Pb2+ and anions: NO2-, NO3-, Cl−, Br−, HCO3-) was evaluated both in single selective sensor mode and in multisensory arrangement. The satisfactory PLS1 regression models between sensor array optical response and analyte concentration were obtained for Cd2+, Cu2+, Zn2+, and NO2- ions in all the range of tested concentrations. Among these species the highest attention was focused onto detection of cadmium and nitrite ions, for which the detection limits, DL, estimated by 3σ method were found 0.0013 mg/L and 0.21 mg/L respectively, and these values are lower than the corresponding WHO guideline values of 0.003 mg/L (Cd2+) and 2 mg/L (NO2-). The suitability of the developed sensors implemented with familiar devices for signal acquisition (Light Emitting Diode, LED, as light source and a digital camera as a signal detector), and chemometric methods for data treatment to perform fast and low-cost monitoring of species under interest, in real samples of environmental importance, is demonstrated.
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Affiliation(s)
- Larisa Lvova
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
| | - Fabrizio Caroleo
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
| | - Alessandra Garau
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Monserrato, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, Università degli Studi di Urbino, Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, Università degli Studi di Urbino, Urbino, Italy
| | - Nelsi Zaccheroni
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Marco Lombardo
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Luca Prodi
- Dipartimento di Chimica "G. Ciamician" Università degli Studi di Bologna, Bologna, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, University "Tor Vergata", Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technologies, University "Tor Vergata", Rome, Italy
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27
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Ungati H, Govindaraj V, Mugesh G. The Remarkable Effect of Halogen Substitution on the Membrane Transport of Fluorescent Molecules in Living Cells. Angew Chem Int Ed Engl 2018; 57:8989-8993. [DOI: 10.1002/anie.201804128] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/10/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Harinarayana Ungati
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Vijayakumar Govindaraj
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
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28
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Ungati H, Govindaraj V, Mugesh G. The Remarkable Effect of Halogen Substitution on the Membrane Transport of Fluorescent Molecules in Living Cells. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804128] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Harinarayana Ungati
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Vijayakumar Govindaraj
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
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29
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Ungati H, Govindaraj V, Mugesh G. The Remarkable Effect of Halogen Substitution on the Membrane Transport of Fluorescent Molecules in Living Cells. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201804128 erratum in: angew chem int ed engl.2019; 58(8): 2177.pmid: 29846997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Harinarayana Ungati
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Vijayakumar Govindaraj
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
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30
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Sargenti A, Castiglioni S, Olivi E, Bianchi F, Cazzaniga A, Farruggia G, Cappadone C, Merolle L, Malucelli E, Ventura C, Maier JAM, Iotti S. Magnesium Deprivation Potentiates Human Mesenchymal Stem Cell Transcriptional Remodeling. Int J Mol Sci 2018; 19:ijms19051410. [PMID: 29747379 PMCID: PMC5983826 DOI: 10.3390/ijms19051410] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/03/2018] [Accepted: 05/05/2018] [Indexed: 12/21/2022] Open
Abstract
Magnesium plays a pivotal role in energy metabolism and in the control of cell growth. While magnesium deprivation clearly shapes the behavior of normal and neoplastic cells, little is known on the role of this element in cell differentiation. Here we show that magnesium deficiency increases the transcription of multipotency markers and tissue-specific transcription factors in human adipose-derived mesenchymal stem cells exposed to a mixture of natural molecules, i.e., hyaluronic, butyric and retinoid acids, which tunes differentiation. We also demonstrate that magnesium deficiency accelerates the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells. We argue that magnesium deprivation generates a stressful condition that modulates stem cell plasticity and differentiation potential. These studies indicate that it is possible to remodel transcription in mesenchymal stem cells by lowering extracellular magnesium without the need for genetic manipulation, thus offering new hints for regenerative medicine applications.
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Affiliation(s)
- Azzurra Sargenti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy.
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences 'L. Sacco', University of Milan, 20157 Milan, Italy.
| | - Elena Olivi
- GUNA-ATTRE (Advanced Therapies and Tissue Regeneration), Innovation Accelerator at CNR, Via Gobetti 101, 40129 Bologna, Italy.
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy.
| | - Francesca Bianchi
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy.
| | - Alessandra Cazzaniga
- Department of Biomedical and Clinical Sciences 'L. Sacco', University of Milan, 20157 Milan, Italy.
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy.
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy.
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy.
| | - Lucia Merolle
- Transfusion Medicine Unit, Azienda Usl di Reggio Emilia-IRCCS, 42123 Reggio Emilia, Italy.
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy.
| | - Carlo Ventura
- GUNA-ATTRE (Advanced Therapies and Tissue Regeneration), Innovation Accelerator at CNR, Via Gobetti 101, 40129 Bologna, Italy.
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy.
- National Laboratory of Molecular Biology and Stem Cell Engineering-Eldor Lab, Innovation Accelerator at CNR, Via Gobetti 101, 40129 Bologna, Italy.
| | - Jeanette A M Maier
- Department of Biomedical and Clinical Sciences 'L. Sacco', University of Milan, 20157 Milan, Italy.
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy.
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy.
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31
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Recent advances in magnesium assessment: From single selective sensors to multisensory approach. Talanta 2018; 179:430-441. [DOI: 10.1016/j.talanta.2017.11.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/13/2017] [Accepted: 11/14/2017] [Indexed: 11/23/2022]
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32
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Pan W, Mao L, Shi M, Fu Y, Jiang X, Feng W, He Y, Xu D, Yuan L. The cytochrome c–cyclo[6]aramide complex as a supramolecular catalyst in methanol. NEW J CHEM 2018. [DOI: 10.1039/c7nj02741a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hydrogen-bonded aromatic amide macrocycle forms a host–guest complex with cytochrome c, which acts as a supramolecular catalyst for the oxidation of benzhydrol even at low temperatures.
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Affiliation(s)
- Wang Pan
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
| | - Lijun Mao
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
| | - Mingsong Shi
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
| | - Yonghong Fu
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
| | - Xiaomin Jiang
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
| | - Wen Feng
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
| | - Youzhou He
- Chongqing Key Laboratory of Catalysis & Functional Organic Molecules, College of Environment and Resources, Chongqing Technology and Business University
- Chongqing 400067
- China
| | - Dingguo Xu
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
| | - Lihua Yuan
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University
- Chengdu 610064
- China
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33
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Liu M, Yu X, Li M, Liao N, Bi A, Jiang Y, Liu S, Gong Z, Zeng W. Fluorescent probes for the detection of magnesium ions (Mg2+): from design to application. RSC Adv 2018; 8:12573-12587. [PMID: 35541260 PMCID: PMC9079720 DOI: 10.1039/c8ra00946e] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 03/21/2018] [Indexed: 11/24/2022] Open
Abstract
Magnesium ions (Mg2+) play essential roles in various physiological and pathological processes, its abnormal homeostasis in cells is related to many diseases, such as diabetes, neuromuscular disorders, hypertension and other cardiovascular disorders. Investigation on the regulation of magnesium in cellular processes has attracted considerable interest in the past several decades. Among those reported strategies, fluorescent imaging technology has become a powerful and cost-effective tool for the real-time monitoring of magnesium distribution, uptake and trafficking, due to its superior features of high sensitivity and non-invasiveness, as well as excellent spatial and temporal fidelity. Herein, we critically summarize the progresses in the intracellular magnesium detection with fluorescent imaging probes. Our discussion focuses on the recent contributions concerning fluorescent imaging probes for mapping magnesium in biological processes. All the candidates are organized according to their acceptor structures. The sensing mechanisms of fluorescent probes are also highly taken into account. Challenges, trends and prospects of fluorescent imaging technology in magnesium detection are also set forth. Herein, progress in intracellular magnesium detection with fluorescent probes is critically summarized in this work.![]()
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Affiliation(s)
- Min Liu
- Department of Pharmacy
- Institute of Hospital Pharmacy
- Xiangya Hospital
- Central South University
- Changsha 410008
| | - Xia Yu
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- P. R. China
| | - Ming Li
- Changsha Stomatological Hospital
- Changsha 410000
- P. R. China
| | - Naixuan Liao
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- P. R. China
| | - Anyao Bi
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- P. R. China
| | - Yueping Jiang
- Department of Pharmacy
- Institute of Hospital Pharmacy
- Xiangya Hospital
- Central South University
- Changsha 410008
| | - Shao Liu
- Department of Pharmacy
- Institute of Hospital Pharmacy
- Xiangya Hospital
- Central South University
- Changsha 410008
| | - Zhicheng Gong
- Department of Pharmacy
- Institute of Hospital Pharmacy
- Xiangya Hospital
- Central South University
- Changsha 410008
| | - Wenbin Zeng
- Xiangya School of Pharmaceutical Sciences
- Central South University
- Changsha
- P. R. China
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34
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Lvova L, Guanais Gonçalves C, Prodi L, Lombardo M, Zaccheroni N, Viaggiu E, Congestri R, Guzzella L, Pozzoni F, Di Natale C, Paolesse R. Non-enzymatic portable optical sensors for microcystin-LR. Chem Commun (Camb) 2018; 54:2747-2750. [DOI: 10.1039/c7cc09830h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a selective non-enzymatic optical sensor for fast and low-cost detection of microcystin-LR and POCT estimation of water toxicity.
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Affiliation(s)
- Larisa Lvova
- Department of Chemical Science and Technologies
- University “Tor Vergata”
- Rome
- Italy
| | | | - Luca Prodi
- Dipartimento di Chimica “G.Ciamician” Università degli Studi di Bologna
- Bologna
- Italy
| | - Marco Lombardo
- Dipartimento di Chimica “G.Ciamician” Università degli Studi di Bologna
- Bologna
- Italy
| | - Nelsi Zaccheroni
- Dipartimento di Chimica “G.Ciamician” Università degli Studi di Bologna
- Bologna
- Italy
| | | | | | | | | | - Corrado Di Natale
- Department of Electronic Engineering
- University “Tor Vergata”
- Rome
- Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technologies
- University “Tor Vergata”
- Rome
- Italy
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35
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Malucelli E, Procopio A, Fratini M, Gianoncelli A, Notargiacomo A, Merolle L, Sargenti A, Castiglioni S, Cappadone C, Farruggia G, Lombardo M, Lagomarsino S, Maier JA, Iotti S. Single cell versus large population analysis: cell variability in elemental intracellular concentration and distribution. Anal Bioanal Chem 2017; 410:337-348. [PMID: 29150807 DOI: 10.1007/s00216-017-0725-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/13/2017] [Accepted: 10/25/2017] [Indexed: 01/02/2023]
Abstract
The quantification of elemental concentration in cells is usually performed by analytical assays on large populations missing peculiar but important rare cells. The present article aims at comparing the elemental quantification in single cells and cell population in three different cell types using a new approach for single cells elemental analysis performed at sub-micrometer scale combining X-ray fluorescence microscopy and atomic force microscopy. The attention is focused on the light element Mg, exploiting the opportunity to compare the single cell quantification to the cell population analysis carried out by a highly Mg-selective fluorescent chemosensor. The results show that the single cell analysis reveals the same Mg differences found in large population of the different cell strains studied. However, in one of the cell strains, single cell analysis reveals two cells with an exceptionally high intracellular Mg content compared with the other cells of the same strain. The single cell analysis allows mapping Mg and other light elements in whole cells at sub-micrometer scale. A detailed intensity correlation analysis on the two cells with the highest Mg content reveals that Mg subcellular localization correlates with oxygen in a different fashion with respect the other sister cells of the same strain. Graphical abstract Single cells or large population analysis this is the question!
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Affiliation(s)
- Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40127, Bologna, Italy.
| | - Alessandra Procopio
- Department of Pharmacy and Biotechnology, University of Bologna, 40127, Bologna, Italy
| | - Michela Fratini
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Piazza del Viminale, 1, 00184, Roma, Italy.,CNR-Nanotec, c/o Department of Physics University Sapienza, Rome, Italy
| | | | - Andrea Notargiacomo
- Consiglio Nazionale delle Ricerche, Institute for Photonics and Nanotechnology, 00156, Rome, Italy
| | - Lucia Merolle
- Arcispedale S. Maria Nuova-IRCCS, Viale Risorgimento 80, 42123, Reggio Emilia, Italy
| | - Azzurra Sargenti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127, Bologna, Italy
| | - Sara Castiglioni
- Department of Biomedical and Clinical Sciences "L. Sacco", University of Milan, 20157, Milan, Italy
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 40127, Bologna, Italy
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 40127, Bologna, Italy.,National Institute of Biostructures and Biosystems, 00136, Rome, Italy
| | - Marco Lombardo
- Department of Chemistry "G. Ciamician", University of Bologna, 40126, Bologna, Italy
| | | | - Jeanette A Maier
- Department of Biomedical and Clinical Sciences "L. Sacco", University of Milan, 20157, Milan, Italy
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127, Bologna, Italy.,National Institute of Biostructures and Biosystems, 00136, Rome, Italy
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36
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Systematic approach in Mg 2+ ions analysis with a combination of tailored fluorophore design. Anal Chim Acta 2017; 988:96-103. [PMID: 28916109 DOI: 10.1016/j.aca.2017.07.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/13/2017] [Accepted: 07/29/2017] [Indexed: 11/24/2022]
Abstract
A systematic study of a series of diaza-18-crown-6 8-hydroxyquinoline (DCHQ) chemosensors, devoted to Mg(II) ion detection, was performed. Functionalization of DCHQ by peripheral substituents allowed the development of novel all-solid-state optodes via inclusion inside PVC-based polymeric films. The influence on the DCHQ-based optode response of the lipophilic sites functionalization and of the nature of the plasticizer, was investigated. Fluorimetric studies on optodes sensitivity towards a number of different metal cations (Ca2+, Na+, K+, Li+, Co2+, Cd2+, Pb2+, Cu2+, Hg2+, Zn2+) and NH4+ were carried out. The results demonstrated the suitability of the DCHQ optodes to perform fast monitoring (<10s) of magnesium (II) ions. Emission light signal was sufficiently brilliant to be captured by a low-cost computer webcam. The phenyl-substituted DCHQ-Ph derivative showed the best performance with a wide range for Mg(II) ion determination between 2.7 × 10-7 and 2.2 × 10-2 mol/L. It was possible, therefore, to determine the concentrations of Mg(II) in commercial fertilizer samples by DCHQ-Ph-based optodes with acceptable results: recoveries of 96.2-104.9% and relative standard deviation (RSD, n = 6) less than 5%. Moreover, in comparison to single sensors, the use of an array composed of five optodes (the ones showing the best performances in the preliminary tests) has allowed to reduce the RSD of magnesium determination in real samples (down to 3.7% with respect to 5.5% for single optodes) and to achieve a detection limit (estimated by s/n = 3 method) as low as 4.6 × 10-7 mol/L.
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37
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Kim DY, Shinde S, Ghodake G. Colorimetric detection of magnesium (II) ions using tryptophan functionalized gold nanoparticles. Sci Rep 2017. [PMID: 28638065 PMCID: PMC5479790 DOI: 10.1038/s41598-017-04359-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The functional nanoparticles with specific molecular probe appear to be a promising approach for developing colorimetric nanosensor. In this work, we have synthesized tryptophan capped gold nanoparticles (AuNPs) and used to establish colorimetric detection of magnesium (Mg2+). The colorimetric response of the AuNPs toward Mg2+ was noticed with naked eyes, and spectral changes were monitored by using UV-Vis spectrophotometer. The detection response was rapid (less than 1 min), with a detection limit (LOD) about 0.2 µmol L−1. The proposed nanoprobe shows characteristic red-shift of the AuNPs at 620 nm and high selectivity for Mg2+ due to the binding affinity of the tryptophan with Mg2+. The real-time response of the UV-Vis spectrum was monitored at three different concentrations of Mg2+ (0.45, 0.50, and 0.55 µmol L−1). The AuNPs probe was suitable to provide a molecular platform for selective coordination with Mg2+ over Ca2+ ions, thus it could be facile to establish a practically viable sensing system. Furthermore, experimental results were confirmed to exhibit excellent linear curve for urine and serum samples spiked with Mg2+. Thus, this nanosensor is practically useful for the detection of Mg2+, without using expensive instruments, enzymes and/or DNA molecules.
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Affiliation(s)
- Dae-Young Kim
- Dongguk University-Seoul, Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, South Korea
| | - Surendra Shinde
- Dongguk University-Seoul, Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, South Korea
| | - Gajanan Ghodake
- Dongguk University-Seoul, Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, South Korea.
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38
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Matsui Y, Sadhu KK, Mizukami S, Kikuchi K. Highly selective tridentate fluorescent probes for visualizing intracellular Mg2+ dynamics without interference from Ca2+ fluctuation. Chem Commun (Camb) 2017; 53:10644-10647. [DOI: 10.1039/c7cc06141b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Novel fluorescent probes based on a tridentate Mg2+-selective chelator enabled the detection of intracellular Mg2+ concentration change without any response to Ca2+.
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Affiliation(s)
- Yusuke Matsui
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- Suita
- Japan
| | - Kalyan K. Sadhu
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- Suita
- Japan
| | - Shin Mizukami
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai
- Japan
| | - Kazuya Kikuchi
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- Suita
- Japan
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