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Alazoumi KKM, Sharma P, Islam A, Farooqi H. Mitigation of the Deleterious Effect of Heavy Metals on the Conformational Stability of Ubiquitin through Osmoprotectants. Cell Biochem Biophys 2024; 82:193-202. [PMID: 37843791 DOI: 10.1007/s12013-023-01188-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 10/03/2023] [Indexed: 10/17/2023]
Abstract
The Ubiquitin-Proteasome System (UPS) is important in protein homeostasis and is involved in many cell processes. UPS's wide range of regulatory activities is based on the unique and diverse signals transmitted through all-encompassing processes. Cells need a fully functional UPP to cope with oxidative stress, so cellular redox status modulates ubiquitin activity. However, these protein quality control systems are compromised under adverse conditions such as heavy metal stress, resulting in pathological conditions. Heavy metals disrupt the physiological action of sensitive proteins by forming complexes with side-chain functional groups or by dislocating critical metal ions in metalloproteins. In addition, perturbation in the structure of Ubiquitin may affect the ubiquitin-proteasome pathway. In this study, it has been investigated the effects of heavy metals likewise chromium (Cr), cadmium (Cd), and mercury chloride (HgCl2) on the conformational stability of Ubiquitin as well as overcome their hazardous effect, the interaction of osmo-protectants such as Sesamol, gallic acid, Glycine, and ascorbic acid have also been explored in the study. The near and far UV-circular dichroism measurements deduced the secondary and tertiary structural changes. The size of the Ubiquitin before and after exposure to heavy metals was measured by DLS (dynamic light scattering). Docking research was also used to investigate the interaction of Ubiquitin with various heavy metals. Near and far UV-circular dichroism (CD) measurements revealed that mercury, chromium, and cadmium disrupt Ubiquitin's secondary and tertiary structure. The effect of chromium, even at low concentrations, was significantly deleterious compared to cadmium and mercury chloride. Ubiquitin's far-UV circular dichroism spectra subjected to heavy metals were recorded in several osmo-protectants, such as ascorbic acid, Glycine, gallic acid, and Sesamol, which offset the adverse effects of heavy metals. DLS studies revealed a noteworthy change in the hydrodynamic radius of Ubiquitin in the presence of heavy metals. Docking analysis revealed a significant binding affinity of mercury and cadmium ions with Ubiquitin. This study can infer the heavy metals' disruption of Ubiquitin's secondary and tertiary structure. Osmo-protectants produced by animal cells are more effective against heavy metals than plant antioxidants.
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Affiliation(s)
- Khadega Khamis Moh Alazoumi
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, Hamdard Nagar, New Delhi, 110062, India
| | - Pradakshina Sharma
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, Hamdard Nagar, New Delhi, 110062, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Humaira Farooqi
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, Hamdard Nagar, New Delhi, 110062, India.
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2
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Gorman BL, Torti SV, Torti FM, Anderton CR. Mass spectrometry imaging of metals in tissues and cells: Methods and biological applications. Biochim Biophys Acta Gen Subj 2024; 1868:130329. [PMID: 36791830 PMCID: PMC10423302 DOI: 10.1016/j.bbagen.2023.130329] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/24/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023]
Abstract
BACKGROUND Metals are pervasive throughout biological processes, where they play essential structural and catalytic roles. Metals can also exhibit deleterious effects on human health. Powerful analytical techniques, such as mass spectrometry imaging (MSI), are required to map metals due to their low concentrations within biological tissue. SCOPE OF REVIEW This Mini Review focuses on key MSI technology that can image metal distributions in situ, describing considerations for each technique (e.g., resolution, sensitivity, etc.). We highlight recent work using MSI for mapping trace metals in tissues, detecting metal-based drugs, and simultaneously imaging metals and biomolecules. MAJOR CONCLUSIONS MSI has enabled significant advances in locating bioactive metals at high spatial resolution and correlating their distributions with that of biomolecules. The use of metal-based immunochemistry has enabled simultaneous high-throughput protein and biomolecule imaging. GENERAL SIGNIFICANCE The techniques and examples described herein can be applied to many biological questions concerning the important biological roles of metals, metal toxicity, and localization of metal-based drugs.
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Affiliation(s)
- Brittney L Gorman
- Environmental Molecular Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, United States of America
| | - Suzy V Torti
- Department of Molecular Biology and Biophysics, University of Connecticut Health Center, Farmington, CT 06030, United States of America
| | - Frank M Torti
- Department of Medicine, University of Connecticut Health Center, Farmington, CT 06030, United States of America
| | - Christopher R Anderton
- Environmental Molecular Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, United States of America.
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3
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Mohammadi S, Seyedalipour B, Hashemi SZ, Hosseinkhani S, Mohseni M. Implications of ALS-Associated Mutations on Biochemical and Biophysical Features of hSOD1 and Aggregation Formation. Biochem Genet 2024:10.1007/s10528-023-10619-y. [PMID: 38196030 DOI: 10.1007/s10528-023-10619-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/02/2023] [Indexed: 01/11/2024]
Abstract
One of the recognized motor neuron degenerative disorders is amyotrophic lateral sclerosis (ALS). By now, several mutations have been reported and linked to ALS patients, some of which are induced by mutations in the human superoxide dismutase (hSOD1) gene. The ALS-provoking mutations are located throughout the structure of hSOD1 and promote the propensity to aggregate. Despite numerous investigations, the underlying mechanism related to the toxicity of mutant hSOD1 through the gain of a toxic function is still vague. We surveyed two mutant forms of hSOD1 by removing and adding cysteine at positions 146 and 72, respectively, to investigate the biochemical characterization and amyloid formation. Our findings predicted the harmful and destabilizing impact of two SOD1 mutants using multiple programs. The specific activity of the wild-type form was about 1.42- and 1.92-fold higher than that of C146R and G72C mutants, respectively. Comparative structural studies using CD spectropolarimetry, and intrinsic and ANS fluorescence showed alterations in secondary structure content, exposure of hydrophobic patches, and structural compactness of WT-hSOD1 vs. mutants. We demonstrated that two mutants were able to promote amyloid-like aggregates under amyloid induction circumstances (50-mM Tris-HCl pH 7.4, 0.2-M KSCN, 50-mM DTT, 37 °C, 190 rpm). Monitoring aggregates were done using an enhancement in thioflavin T fluorescence and alterations in Congo red absorption. The mutants accelerated fibrillation with subsequently greater fluorescence amplitude and a shorter lag time compared to WT-SOD1. These findings support the aggregation of ALS-associated SOD1 mutants as an integral part of ALS pathology.
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Affiliation(s)
- Saeede Mohammadi
- Department of Molecular and Cell Biology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran
| | - Bagher Seyedalipour
- Department of Molecular and Cell Biology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran.
| | - Seyedeh Zohreh Hashemi
- Department of Molecular and Cell Biology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran
| | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mojtaba Mohseni
- Department of Microbiology, Faculty of Basic Science, University of Mazandaran, Babolsar, Iran
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4
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Dattatray Shinde S, Kumar Behera S, Kulkarni N, Dewangan B, Sahu B. Bifunctional backbone modified squaramide dipeptides as amyloid beta (Aβ) aggregation inhibitors. Bioorg Med Chem 2024; 97:117538. [PMID: 38056379 DOI: 10.1016/j.bmc.2023.117538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 12/08/2023]
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative condition with complex pathophysiology. Aggregated amyloid beta (Aβ) peptide plaques and higher concentrations of bio-metals such as copper (Cu), zinc (Zn), and iron (Fe) are the most significant hallmarks of AD observed in the brains of AD patients. Therefore simultaneous inhibition of Aβ peptide aggregation and reduction of metal stress may serve as an effective therapeutic approach for treating Alzheimer's disease. A series of bifunctional dipeptides bearing squaramide backbone were synthesized and investigated for their ability to chelate metal ions and prevent Aβ peptide aggregation. Dipeptides with Valine (V) and Threonine (T) substitutions at the C-terminus exhibited preferential chelation with Cu(II), Zn(II), and Fe(III) metal ions in the presence of other metal ions. They were also found to inhibit the aggregation of Aβ peptide in-vitro. A further molecular dynamics (MD) simulation study demonstrated that these two dipeptides interact with the Aβ peptide in the hydrophobic core (KLVFF) region. Circular dichroism (CD) study revealed slight conformational change in the Aβ peptide upon the interactions with dipeptides. Apart from metal chelation and inhibition of Aβ peptide aggregation, the selected dipeptides were found to possess anti-oxidant properties. Therefore, the squaramide backbone-modified dipeptides may serve as an active bifunctional scaffold towards the development of new chemical entities for the treatment of Alzheimer's disease.
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Affiliation(s)
- Suchita Dattatray Shinde
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gujarat 382355, India
| | - Santosh Kumar Behera
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gujarat 382355, India
| | - Neeraj Kulkarni
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gujarat 382355, India
| | - Bhaskar Dewangan
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gujarat 382355, India
| | - Bichismita Sahu
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Gujarat 382355, India.
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5
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Lowery AW, Ambi A, Miller LM, Boreyko JB. Reducing Frost during Cryoimaging Using a Hygroscopic Ice Frame. ACS OMEGA 2022; 7:43421-43431. [PMID: 36506191 PMCID: PMC9730467 DOI: 10.1021/acsomega.2c03083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/13/2022] [Indexed: 06/17/2023]
Abstract
Cryomicroscopy is commonly hampered by frost accumulation, reducing the visual clarity of the specimen. Pulling a vacuum or purging with nitrogen gas can greatly reduce the sample chamber's humidity, but at cryogenic temperatures, even minute concentrations of water vapor can still result in frost deposition. Here, a hygroscopic ice frame was created around the specimen to suppress frost growth during cryomicroscopy. Specifically, fluorescently tagged rat brain vessels were frozen on a silicon nitride window with an ice frame, and the luminescence of the fluorescent tag was improved by a factor of 6 compared to a similar specimen in only a nitrogen purge environment. These findings suggest that the simple implementation of a hygroscopic ice frame surrounding the specimen can substantially improve the visual clarity for cryomicroscopy, beyond that of a vacuum or nitrogen purge system.
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Affiliation(s)
- Adam W. Lowery
- Department
of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24060, United States
- National
Synchrotron Light Source II, Brookhaven
National Laboratory, Upton, New York 11973, United States
| | - Ashwin Ambi
- National
Synchrotron Light Source II, Brookhaven
National Laboratory, Upton, New York 11973, United States
- Department
of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
| | - Lisa M. Miller
- National
Synchrotron Light Source II, Brookhaven
National Laboratory, Upton, New York 11973, United States
- Department
of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
| | - Jonathan B. Boreyko
- Department
of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24060, United States
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6
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Padhi D, Govindaraju T. Mechanistic Insights for Drug Repurposing and the Design of Hybrid Drugs for Alzheimer's Disease. J Med Chem 2022; 65:7088-7105. [PMID: 35559617 DOI: 10.1021/acs.jmedchem.2c00335] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The heterogeneity and complex nature of Alzheimer's disease (AD) is attributed to several genetic risk factors and molecular culprits. The slow pace and increasing failure rate of conventional drug discovery has led to the exploration of complementary strategies based on repurposing approved drugs to treat AD. Drug repurposing (DR) is a cost-effective, low-risk, and efficient approach for identifying novel therapeutic candidates for AD treatment. Similarly, hybrid drug design through the integration of distinct pharmacophores from known or failed drugs and natural products is an interesting strategy to target the multifactorial nature of AD. In this Perspective, we discuss the potential of DR and highlight promising drug candidates that can be advanced for clinical trials, backed by a detailed discussion on their plausible mechanisms of action. Our article fosters research on the hidden potential of DR and hybrid drug design with the goal of unravelling new drugs and targets to tackle AD.
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Affiliation(s)
- Dikshaa Padhi
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru, Karnataka 560064, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru, Karnataka 560064, India
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7
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Arbo BD, Schimith LE, Goulart dos Santos M, Hort MA. Repositioning and development of new treatments for neurodegenerative diseases: Focus on neuroinflammation. Eur J Pharmacol 2022; 919:174800. [DOI: 10.1016/j.ejphar.2022.174800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 01/18/2022] [Accepted: 02/02/2022] [Indexed: 11/03/2022]
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8
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Hackett MJ, Hollings AL, Lam V, Takechi R, Mamo JCL, de Jonge MD, Paterson D, Okuyama S. [Mapping the Metallo-maze to Memory Loss: Does Neuronal Metal Ion Deficiency Contribute to Dementia?]. YAKUGAKU ZASSHI 2021; 141:835-842. [PMID: 34078791 DOI: 10.1248/yakushi.20-00251-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Dementia has no cure and is an international health crisis. In addition to the immeasurable loss of QOL caused by dementia, the global economic cost is predicted to reach $2 trillion (USD) by 2030. Although much remains unknown about the biochemical pathways driving cognitive decline and memory loss during dementia, metals have been implicated in neurodegenerative disease. For example, total levels of Fe and Cu increase, which has been proposed to drive oxidative stress; and Fe, Cu, and Zn can bind amyloid-β, catalysing aggregation and formation of amyloid plaques. Unfortunately, despite these known facets through which metal ions may induce pathology, studies in greater detail have been hampered by a lack of microscopy methods to directly visualise metal ions, and their chemical form, within brain cells. Herein we report the use of synchrotron X-ray fluorescence microscopy to simultaneously image Fe, Cu, and Zn within neurons in ex vivo brain tissue sections. Using animal models of dementia, we now demonstrate for the first time that despite global increases in brain metal content and metal ion accumulation within amyloid plaques, key brain regions may also become metal ion deficient. Such deficiency could contribute to cognitive decline because of the essential roles metal ions play in neurotransmitter synthesis and energy metabolism. These recent findings are discussed in the context of memory loss, and the impact that metal ion dis-homeostasis may have on diagnostic and therapeutic development.
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Affiliation(s)
- Mark J Hackett
- School of Molecular and Life Sciences, Curtin University.,Curtin Health Innovation Research Institute, Curtin University.,Curtin Institute of Functional Molecules and Interfaces, Curtin University
| | - Ashley L Hollings
- School of Molecular and Life Sciences, Curtin University.,Curtin Health Innovation Research Institute, Curtin University.,Curtin Institute of Functional Molecules and Interfaces, Curtin University
| | - Virginie Lam
- Curtin Health Innovation Research Institute, Curtin University
| | - Ryusuke Takechi
- Curtin Health Innovation Research Institute, Curtin University
| | - John C L Mamo
- Curtin Health Innovation Research Institute, Curtin University
| | | | | | - Satoshi Okuyama
- Department of Pharmaceutical Pharmacology, College of Pharmaceutical Sciences, Matsuyama University
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9
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Du M, Di ZW, Gürsoy D, Xian RP, Kozorovitskiy Y, Jacobsen C. Upscaling X-ray nanoimaging to macroscopic specimens. J Appl Crystallogr 2021; 54:386-401. [PMID: 33953650 PMCID: PMC8056767 DOI: 10.1107/s1600576721000194] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 01/06/2021] [Indexed: 11/10/2022] Open
Abstract
Upscaling X-ray nanoimaging to macroscopic specimens has the potential for providing insights across multiple length scales, but its feasibility has long been an open question. By combining the imaging requirements and existing proof-of-principle examples in large-specimen preparation, data acquisition and reconstruction algorithms, the authors provide imaging time estimates for howX-ray nanoimaging can be scaled to macroscopic specimens. To arrive at this estimate, a phase contrast imaging model that includes plural scattering effects is used to calculate the required exposure and corresponding radiation dose. The coherent X-ray flux anticipated from upcoming diffraction-limited light sources is then considered. This imaging time estimation is in particular applied to the case of the connectomes of whole mouse brains. To image the connectome of the whole mouse brain, electron microscopy connectomics might require years, whereas optimized X-ray microscopy connectomics could reduce this to one week. Furthermore, this analysis points to challenges that need to be overcome (such as increased X-ray detector frame rate) and opportunities that advances in artificial-intelligence-based 'smart' scanning might provide. While the technical advances required are daunting, it is shown that X-ray microscopy is indeed potentially applicable to nanoimaging of millimetre- or even centimetre-size specimens.
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Affiliation(s)
- Ming Du
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Zichao Wendy Di
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.,Mathematics and Computer Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Doǧa Gürsoy
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.,Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL 60208, USA
| | - R Patrick Xian
- Department of Neurobiology, Northwestern University, Evanston, IL 60208, USA
| | - Yevgenia Kozorovitskiy
- Department of Neurobiology, Northwestern University, Evanston, IL 60208, USA.,Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
| | - Chris Jacobsen
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.,Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA.,Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
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10
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Samanta S, Rajasekhar K, Ramesh M, Murugan NA, Alam S, Shah D, Clement JP, Govindaraju T. Naphthalene Monoimide Derivative Ameliorates Amyloid Burden and Cognitive Decline in a Transgenic Mouse Model of Alzheimer's Disease. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202000225] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sourav Samanta
- Bioorganic Chemistry Laboratory New Chemistry Unit Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru 560064 India
| | - Kolla Rajasekhar
- Bioorganic Chemistry Laboratory New Chemistry Unit Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru 560064 India
| | - Madhu Ramesh
- Bioorganic Chemistry Laboratory New Chemistry Unit Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru 560064 India
| | - Natarajan Arul Murugan
- Department of Theoretical Chemistry and Biology School of Chemistry Biotechnology and Health KTH Royal Institute of Technology S‐106 91 Stockholm Sweden
| | - Shadab Alam
- Bioorganic Chemistry Laboratory New Chemistry Unit Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru 560064 India
| | - Devanshi Shah
- Neuroscience Unit Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru 560064 India
| | - James Premdas Clement
- Neuroscience Unit Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru 560064 India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory New Chemistry Unit Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur P.O. Bengaluru 560064 India
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11
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de Jesus JR, Arruda MAZ. Unravelling neurological disorders through metallomics-based approaches. Metallomics 2020; 12:1878-1896. [PMID: 33237082 DOI: 10.1039/d0mt00234h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Understanding the biological process involving metals and biomolecules in the brain is essential for establishing the origin of neurological disorders, such as neurodegenerative and psychiatric diseases. From this perspective, this critical review presents recent advances in this topic, showing possible mechanisms involving the disruption of metal homeostasis and the pathogenesis of neurological disorders. We also discuss the main challenges observed in metallomics studies associated with neurological disorders, including those related to sample preparation and analyte quantification.
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12
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Dales JP, Desplat-Jégo S. Metal Imbalance in Neurodegenerative Diseases with a Specific Concern to the Brain of Multiple Sclerosis Patients. Int J Mol Sci 2020; 21:E9105. [PMID: 33266021 PMCID: PMC7730295 DOI: 10.3390/ijms21239105] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/29/2020] [Accepted: 11/19/2020] [Indexed: 12/16/2022] Open
Abstract
There is increasing evidence that deregulation of metals contributes to a vast range of neurodegenerative diseases including multiple sclerosis (MS). MS is a chronic inflammatory disease of the central nervous system (CNS) manifesting disability and neurological symptoms. The precise origin of MS is unknown, but the disease is characterized by focal inflammatory lesions in the CNS associated with an autoimmune reaction against myelin. The treatment of this disease has mainly been based on the prescription of immunosuppressive and immune-modulating agents. However, the rate of progressive disability and early mortality is still worrisome. Metals may represent new diagnostic and predictive markers of severity and disability as well as innovative candidate drug targets for future therapies. In this review, we describe the recent advances in our understanding on the role of metals in brain disorders of neurodegenerative diseases and MS patients.
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Affiliation(s)
- Jean-Philippe Dales
- Institute of Neurophysiopathology, CNRS, INP, Aix-Marseille University, 13005 Marseille, France;
- Assistance Publique-Hôpitaux de Marseille, Hôpital Nord, Pavillon Etoile, Pôle de Biologie, Service d’anatomie-pathologie, CEDEX 20, 13915 Marseille, France
| | - Sophie Desplat-Jégo
- Institute of Neurophysiopathology, CNRS, INP, Aix-Marseille University, 13005 Marseille, France;
- Assistance Publique-Hôpitaux de Marseille, Hôpital de la Conception, Pôle de Biologie, Service d’Immunologie, 13005 Marseille, France
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13
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Nano-imaging trace elements at organelle levels in substantia nigra overexpressing α-synuclein to model Parkinson's disease. Commun Biol 2020; 3:364. [PMID: 32647232 PMCID: PMC7347932 DOI: 10.1038/s42003-020-1084-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 06/18/2020] [Indexed: 12/17/2022] Open
Abstract
Sub-cellular trace element quantifications of nano-heterogeneities in brain tissues offer unprecedented ways to explore at elemental level the interplay between cellular compartments in neurodegenerative pathologies. We designed a quasi-correlative method for analytical nanoimaging of the substantia nigra, based on transmission electron microscopy and synchrotron X-ray fluorescence. It combines ultrastructural identifications of cellular compartments and trace element nanoimaging near detection limits, for increased signal-to-noise ratios. Elemental composition of different organelles is compared to cytoplasmic and nuclear compartments in dopaminergic neurons of rat substantia nigra. They exhibit 150–460 ppm of Fe, with P/Zn/Fe-rich nucleoli in a P/S-depleted nuclear matrix and Ca-rich rough endoplasmic reticula. Cytoplasm analysis displays sub-micron Fe/S-rich granules, including lipofuscin. Following AAV-mediated overexpression of α-synuclein protein associated with Parkinson’s disease, these granules shift towards higher Fe concentrations. This effect advocates for metal (Fe) dyshomeostasis in discrete cytoplasmic regions, illustrating the use of this method to explore neuronal dysfunction in brain diseases. Lemelle et al. describe the use of TEM and synchrotron X-ray fluorescence for quasi-correlative nanoimaging and sub-cellular trace element quantification of rat brain tissue. They further observe elemental (iron and sulfur) dyshomeostasis in cytoplasmic granules when overexpressing α-synuclein protein associated with Parkinson’s disease, demonstrating the usefulness of this method to further explore dysfunctions at organelle levels in brain diseases.
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14
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Joppe K, Nicolas JD, Grünewald TA, Eckermann M, Salditt T, Lingor P. Elemental quantification and analysis of structural abnormalities in neurons from Parkinson's-diseased brains by X-ray fluorescence microscopy and diffraction. BIOMEDICAL OPTICS EXPRESS 2020; 11:3423-3443. [PMID: 33014542 PMCID: PMC7510930 DOI: 10.1364/boe.389408] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/07/2020] [Accepted: 03/23/2020] [Indexed: 05/11/2023]
Abstract
In this work we use scanning X-ray microscopy to study the structure and elemental composition of neuromelanin-positive neurons in substantia nigra tissue of Parkinson patients (PD) and controls. A total of 53 neurons were analyzed with X-ray fluorescence (XRF) and diffraction using sub-µm-focused synchrotron radiation. A statistical evaluation identified copper as the most group-discriminating element and indicated that interindividual and intraindividual variations are of great relevance in tissue measurements of diseased patients and prevent from automated group clustering. XRF analyses of two Lewy bodies (LBs) highlight a heterogeneity in elemental distributions in these LBs, whereas an innovative X-ray diffraction-based method approach was used to reveal β-sheet-rich crystalline structures in LBs. Overall, sub-µm-focus X-ray microscopy highlighted the elemental heterogeneity in PD pathology.
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Affiliation(s)
- Karina Joppe
- Department of Neurology, University Medical Center Goettingen, Robert-Koch-Straße 40, 37075 Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Von-Siebold-Straße 3a, 37075 Goettingen, Germany
- These authors contributed equally
| | - Jan-David Nicolas
- Institute for X-Ray Physics, Georg-August-University Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, Germany
- These authors contributed equally
| | - Tilman A. Grünewald
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38043 Grenoble, France
- CNRS, Centrale Marseille, Institut Fresnel, Aix-Marseille University, 52 Avenue Escadrille Normandie Niemen, 13013 Marseille, France
| | - Marina Eckermann
- Institute for X-Ray Physics, Georg-August-University Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, Germany
| | - Tim Salditt
- Institute for X-Ray Physics, Georg-August-University Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, Germany
- Cluster of Excellence “Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells” (MBExC), University of Goettingen, Germany
| | - Paul Lingor
- Department of Neurology, University Medical Center Goettingen, Robert-Koch-Straße 40, 37075 Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Von-Siebold-Straße 3a, 37075 Goettingen, Germany
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Ismaninger Straße 22, 81675 Munich, Germany
- DFG Cluster of Excellence Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany
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15
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Rajasekhar K, Samanta S, Bagoband V, Murugan NA, Govindaraju T. Antioxidant Berberine-Derivative Inhibits Multifaceted Amyloid Toxicity. iScience 2020; 23:101005. [PMID: 32272441 PMCID: PMC7138924 DOI: 10.1016/j.isci.2020.101005] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 02/22/2020] [Accepted: 03/18/2020] [Indexed: 12/21/2022] Open
Abstract
Multiple lines of evidence indicate that amyloid beta (Aβ) peptide is responsible for the pathological devastation caused in Alzheimer's disease (AD). Aβ aggregation species predominantly contribute to multifaceted toxicity observed in neuronal cells including generation of reactive oxygen species (ROS), mitochondrial dysfunction, interfering with synaptic signaling, and activation of premature apoptosis. Herein, we report a natural product berberine-derived (Ber-D) multifunctional inhibitor to ameliorate in cellulo multifaceted toxicity of AD. The structural attributes of polyphenolic Ber-D have contributed to its efficient Cu chelation and arresting the redox cycle to prevent the generation of ROS and rescue biomacromolecules from oxidative damage. Ber-D inhibits metal-dependent and -independent Aβ aggregation, which is supported by in silico studies. Ber-D treatment averts mitochondrial dysfunction and corresponding neuronal toxicity contributing to premature apoptosis. These key multifunctional attributes make Ber-D a potential therapeutic candidate to ameliorate multifaceted Aβ toxicity in AD.
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Affiliation(s)
- Kolla Rajasekhar
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, 560064 Karnataka, India
| | - Sourav Samanta
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, 560064 Karnataka, India
| | - Vardhaman Bagoband
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, 560064 Karnataka, India
| | - N Arul Murugan
- Department of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru, 560064 Karnataka, India.
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16
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Hackett MJ, Hollings A, Caine S, Bewer BE, Alaverdashvili M, Takechi R, Mamo JCL, Jones MWM, de Jonge MD, Paterson PG, Pickering IJ, George GN. Elemental characterisation of the pyramidal neuron layer within the rat and mouse hippocampus. Metallomics 2020; 11:151-165. [PMID: 30398510 DOI: 10.1039/c8mt00230d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A unique combination of sensitivity, resolution, and penetration make X-ray fluorescence imaging (XFI) ideally suited to investigate trace elemental distributions in the biological context. XFI has gained widespread use as an analytical technique in the biological sciences, and in particular enables exciting new avenues of research in the field of neuroscience. In this study, elemental mapping by XFI was applied to characterise the elemental content within neuronal cell layers of hippocampal sub-regions of mice and rats. Although classical histochemical methods for metal detection exist, such approaches are typically limited to qualitative analysis. Specifically, histochemical methods are not uniformly sensitive to all chemical forms of a metal, often displaying variable sensitivity to specific "pools" or chemical forms of a metal. In addition, histochemical methods require fixation and extensive chemical treatment of samples, creating the strong likelihood for metal redistribution, leaching, or contamination. Direct quantitative elemental mapping of total elemental pools, in situ within ex vivo tissue sections, without the need for chemical fixation or addition of staining reagents is not possible with traditional histochemical methods; however, such a capability, which is provided by XFI, can offer an enormous analytical advantage. The results we report herein demonstrate the analytical advantage of XFI elemental mapping for direct, label-free metal quantification, in situ within ex vivo brain tissue sections. Specifically, we definitively characterise for the first time, the abundance of Fe within the pyramidal cell layers of the hippocampus. Localisation of Fe to this cell layer is not reproducibly achieved with classical Perls histochemical Fe stains. The ability of XFI to directly quantify neuronal elemental (P, S, Cl, K, Ca, Fe, Cu, Zn) distributions, revealed unique profiles of Fe and Zn within anatomical sub-regions of the hippocampus i.e., cornu ammonis 1, 2 or 3 (CA1, CA2 or CA3) sub-regions. Interestingly, our study reveals a unique Fe gradient across neuron populations within the non-degenerating and pathology free rat hippocampus, which curiously mirrors the pattern of region-specific vulnerability of the hippocampus that has previously been established to occur in various neurodegenerative diseases.
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Affiliation(s)
- M J Hackett
- Curtin Institute for Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, GPOBox U1987, Bentley, WA 6845, Australia.
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17
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Perry WJ, Weiss A, Van de Plas R, Spraggins JM, Caprioli RM, Skaar EP. Integrated molecular imaging technologies for investigation of metals in biological systems: A brief review. Curr Opin Chem Biol 2020; 55:127-135. [PMID: 32087551 PMCID: PMC7237308 DOI: 10.1016/j.cbpa.2020.01.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/25/2019] [Accepted: 01/14/2020] [Indexed: 02/08/2023]
Abstract
Metals play an essential role in biological systems and are required as structural or catalytic co-factors in many proteins. Disruption of the homeostatic control and/or spatial distributions of metals can lead to disease. Imaging technologies have been developed to visualize elemental distributions across a biological sample. Measurement of elemental distributions by imaging mass spectrometry and imaging X-ray fluorescence are increasingly employed with technologies that can assess histological features and molecular compositions. Data from several modalities can be interrogated as multimodal images to correlate morphological, elemental, and molecular properties. Elemental and molecular distributions have also been axially resolved to achieve three-dimensional volumes, dramatically increasing the biological information. In this review, we provide an overview of recent developments in the field of metal imaging with an emphasis on multimodal studies in two and three dimensions. We specifically highlight studies that present technological advancements and biological applications of how metal homeostasis affects human health.
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Affiliation(s)
- William J Perry
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN, 37232, USA; Department of Chemistry, Vanderbilt University, Nashville, TN, 37232, USA; Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Andy Weiss
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, TN, 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Raf Van de Plas
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN, 37232, USA; Delft Center for Systems and Control, Delft University of Technology, Delft, Netherlands; Department of Biochemistry, Vanderbilt University, Nashville, TN, 37232, USA
| | - Jeffrey M Spraggins
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN, 37232, USA; Department of Chemistry, Vanderbilt University, Nashville, TN, 37232, USA; Department of Biochemistry, Vanderbilt University, Nashville, TN, 37232, USA
| | - Richard M Caprioli
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN, 37232, USA; Department of Chemistry, Vanderbilt University, Nashville, TN, 37232, USA; Department of Biochemistry, Vanderbilt University, Nashville, TN, 37232, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37232, USA; Department of Pharmacology, Vanderbilt University, Nashville, TN, 37232, USA; Department of Medicine, Vanderbilt University, Nashville, TN, 37232, USA
| | - Eric P Skaar
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, TN, 37232, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, 37232, USA.
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18
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Witt B, Schaumlöffel D, Schwerdtle T. Subcellular Localization of Copper-Cellular Bioimaging with Focus on Neurological Disorders. Int J Mol Sci 2020; 21:ijms21072341. [PMID: 32231018 PMCID: PMC7178132 DOI: 10.3390/ijms21072341] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 12/17/2022] Open
Abstract
As an essential trace element, copper plays a pivotal role in physiological body functions. In fact, dysregulated copper homeostasis has been clearly linked to neurological disorders including Wilson and Alzheimer’s disease. Such neurodegenerative diseases are associated with progressive loss of neurons and thus impaired brain functions. However, the underlying mechanisms are not fully understood. Characterization of the element species and their subcellular localization is of great importance to uncover cellular mechanisms. Recent research activities focus on the question of how copper contributes to the pathological findings. Cellular bioimaging of copper is an essential key to accomplish this objective. Besides information on the spatial distribution and chemical properties of copper, other essential trace elements can be localized in parallel. Highly sensitive and high spatial resolution techniques such as LA-ICP-MS, TEM-EDS, S-XRF and NanoSIMS are required for elemental mapping on subcellular level. This review summarizes state-of-the-art techniques in the field of bioimaging. Their strengths and limitations will be discussed with particular focus on potential applications for the elucidation of copper-related diseases. Based on such investigations, further information on cellular processes and mechanisms can be derived under physiological and pathological conditions. Bioimaging studies might enable the clarification of the role of copper in the context of neurodegenerative diseases and provide an important basis to develop therapeutic strategies for reduction or even prevention of copper-related disorders and their pathological consequences.
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Affiliation(s)
- Barbara Witt
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114–116, 14558 Nuthetal, Germany;
- Correspondence: ; Tel.: +49-3320-088-5241
| | - Dirk Schaumlöffel
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux (IPREM), UMR 5254, CNRS/Université de Pau et des Pays de l’Adour/E2S UPPA, 64000 Pau, France;
| | - Tanja Schwerdtle
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114–116, 14558 Nuthetal, Germany;
- TraceAge—DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly (FOR 2558), Potsdam-Berlin-Jena, Germany
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19
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Dumková J, Smutná T, Vrlíková L, Kotasová H, Dočekal B, Čapka L, Tvrdoňová M, Jakešová V, Pelková V, Křůmal K, Coufalík P, Mikuška P, Večeřa Z, Vaculovič T, Husáková Z, Kanický V, Hampl A, Buchtová M. Variability in the Clearance of Lead Oxide Nanoparticles Is Associated with Alteration of Specific Membrane Transporters. ACS NANO 2020; 14:3096-3120. [PMID: 32105447 DOI: 10.1021/acsnano.9b08143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lead oxide nanoparticles (PbONPs), upon their entry into the lungs via inhalation, induce structural changes in primary and secondary target organs. The fate and ultrastructural localization of PbONPs in organs is known to be dependent on the specific organ. Here, we focused on the differences in the ability to clear the inhaled PbONPs from secondary target organs and on molecular and cellular mechanisms contributing to nanoparticle removal. Mice were exposed to PbONPs in whole-body inhalation chambers. Clearance of ionic lead and PbONPs (Pb/PbONPs) from the lungs and liver was very effective, with the lead being almost completely eliminated from the lungs and the physiological state of the lung tissue conspicuously restored. Kidneys exposed to nanoparticles did not exhibit serious signs of damage; however, LA-ICP-MS uncovered a certain amount of lead located preferentially in the kidney cortex even after a clearance period. The concentration of lead in femurs, as representatives of the axial skeleton, was the highest among studied organs at all designated time points after PbONP exposure, and the clearance ability of lead from the femurs was very low in contrast to other organs. The organ-specific increase of ABC transporters expression (ABCG2 in lungs and ABCC3 in the liver) was observed in exposed animals, suggesting their involvement in removing Pb/PbONPs from tissues. Moreover, the expression of caveolins and clathrin displayed a tissue-specific response to lead exposure. Our results uncovered high variability among the organs in their ability to clear Pb/PbONPs and in the transporters involved in this process.
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Affiliation(s)
- Jana Dumková
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic
| | - Tereza Smutná
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic
- Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Lucie Vrlíková
- Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Hana Kotasová
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic
| | - Bohumil Dočekal
- Institute of Analytical Chemistry, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Lukáš Čapka
- Institute of Analytical Chemistry, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Michaela Tvrdoňová
- Department of Chemistry, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic
| | - Veronika Jakešová
- Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Vendula Pelková
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic
| | - Kamil Křůmal
- Institute of Analytical Chemistry, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Pavel Coufalík
- Institute of Analytical Chemistry, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Pavel Mikuška
- Institute of Analytical Chemistry, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Zbyněk Večeřa
- Institute of Analytical Chemistry, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
| | - Tomáš Vaculovič
- Department of Chemistry, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic
| | - Zuzana Husáková
- Department of Chemistry, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic
| | - Viktor Kanický
- Department of Chemistry, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic
| | - Aleš Hampl
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic
| | - Marcela Buchtová
- Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, v.v.i., Czech Academy of Sciences, Brno 602 00, Czech Republic
- Section of Animal Physiology and Immunology, Department of Experimental Biology, Faculty of Science, Masaryk University, Brno 625 00, Czech Republic
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20
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Anzai I, Tokuda E, Handa S, Misawa H, Akiyama S, Furukawa Y. Oxidative misfolding of Cu/Zn-superoxide dismutase triggered by non-canonical intramolecular disulfide formation. Free Radic Biol Med 2020; 147:187-199. [PMID: 31863908 DOI: 10.1016/j.freeradbiomed.2019.12.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/05/2019] [Accepted: 12/17/2019] [Indexed: 12/14/2022]
Abstract
Misfolded Cu/Zn-superoxide dismutase (SOD1) is a pathological species in a subset of amyotrophic lateral sclerosis (ALS). Oxidative stress is known to increase in affected spinal cords of ALS and is thus considered to cause damages on SOD1 leading to the misfolding and aggregation. Despite this, it still remains elusive what triggers misfolding of SOD1 under oxidizing environment. Here, we show that a thiol group of Cys111 in SOD1 is oxidized to a sulfenic acid with hydrogen peroxide and reveal that further dissociation of the bound metal ions from the oxidized SOD1 allows another free Cys residue (Cys6) to nucleophilically attack the sulfenylated Cys111. As a result, an intra-molecular disulfide bond forms between Cys6 and Cys111. Such an abnormal SOD1 with the non-canonical disulfide bond was conformationally extended with significant cytotoxicity as well as high propensity to aggregate. Taken together, we propose a new model of SOD1 misfolding under oxidizing environment, in which formation of the non-canonical intramolecular disulfide bond plays a pivotal role.
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Affiliation(s)
- Itsuki Anzai
- Department of Chemistry, Keio University, Yokohama, 223-8522, Japan
| | - Eiichi Tokuda
- Department of Chemistry, Keio University, Yokohama, 223-8522, Japan
| | - Sumika Handa
- Department of Chemistry, Keio University, Yokohama, 223-8522, Japan
| | - Hidemi Misawa
- Division of Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, 105-8512, Japan
| | - Shuji Akiyama
- Research Center of Integrative Molecular Systems (CIMoS), Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, 444-8585, Japan; Department of Functional Molecular Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, 444-8585, Japan
| | - Yoshiaki Furukawa
- Department of Chemistry, Keio University, Yokohama, 223-8522, Japan.
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21
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Samanta S, Govindaraju T. Unambiguous Detection of Elevated Levels of Hypochlorous Acid in Double Transgenic AD Mouse Brain. ACS Chem Neurosci 2019; 10:4847-4853. [PMID: 31790189 DOI: 10.1021/acschemneuro.9b00554] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Alzheimer's disease (AD) is one of the most prevalent forms of dementia. The current diagnosis methods based on the behavior and cognitive decline or imaging of core biomarkers, namely, amyloid-β (Aβ) plaques and neurofibrillary tangles (NFTs), in the brain offer poor to moderate success. Detection and imaging of biomarkers that cause additional traits of pathophysiological aberrations in the brain are invaluable to monitor early disease onset and progression of AD pathology. The pathological hallmark of AD is associated with generation of excessive reactive oxygen species (ROS) in the brain, which aggravate oxidative stress and inflammation. ROS production involves elevated levels of hypochlorous acid (HOCl) and can serve as one of the potential biomarkers for the diagnosis of AD. We report the design, synthesis, and characterization of switchable coumarin-morpholine (CM) conjugates as off-on fluorescence probes for the specific detection of HOCl produced and proximally localized with amyloid plaques. The nonfluorescent thioamide probe CM2 undergoes regioselective transformation to fluorescent amide probe CM1 in the presence of HOCl (∼90-fold fluorescence enhancement and 0.32 quantum yield) with high selectivity and sensitivity (detection limit: 0.17 μM). The excellent cellular uptake and blood-brain barrier (BBB) crossing ability of CM2 allowed unambiguous and differential detection, imaging, and quantification of HOCl in cellular milieu and in the wild type (WT) and AD mouse brains. This study demonstrates the elevated level of HOCl in the AD mouse brain and the potential to expand the repertoire of biomarkers for the diagnosis of AD.
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Affiliation(s)
- Sourav Samanta
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, Karnataka, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, Karnataka, India
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Aouidat F, Boumati S, Khan M, Tielens F, Doan BT, Spadavecchia J. Design and Synthesis of Gold-Gadolinium-Core-Shell Nanoparticles as Contrast Agent: a Smart Way to Future Nanomaterials for Nanomedicine Applications. Int J Nanomedicine 2019; 14:9309-9324. [PMID: 31819433 PMCID: PMC6894158 DOI: 10.2147/ijn.s224805] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/02/2019] [Indexed: 01/09/2023] Open
Abstract
INTRODUCTION The development of biopolymers for the synthesis of Gd(III) nanoparticles, as therapeutics, could play a key role in nanomedicine. Biocompatible polymers are not only used for complex monovalent biomolecules, but also for the realization of multivalent active targeting materials as diagnostic and/or therapeutic hybrid nanoparticles. In this article, it was reported for the first time, a novel synthesis of Gd(III)-biopolymer-Au(III) complex, acting as a key ingredient of core-shell gold nanoparticles (Gd(@AuNPs). MATERIAL AND METHODS The physical and chemical evaluation was carried out by spectroscopic analytical techniques (Raman spectroscopy, UV-visible and TEM). The theoretical characterization by DFT (density functional theory) analysis was carried out under specific conditions to investigate the interaction between the Au and the Gd precursors, during the first nucleation step. Magnetic features with relaxivity measurements at 7T were also performed as well as cytotoxicity studies on hepatocyte cell lines for biocompatibility studies. The in vivo detailed dynamic biodistribution studies in mice to characterize the potential applications for biology as MRI contrast agents were then achieved. RESULTS Physical-chemical evaluation confirms the successful design and reaction supposed. Viabilities of TIB-75 (hepatocytes) cells were evaluated using Alamar blue cytotoxic tests with increasing concentrations of nanoparticles. In vivo biodistribution studies were then accomplished to assess the kinetic behavior of the nanoparticles in mice and characterize their stealthiness property after intravenous injection. CONCLUSION We demonstrated that Gd@AuNPs have some advantages to display hepatocytes in the liver. Particularly, these nanoconjugates give a good cellular uptake of several quantities of Gd@NPs into cells, while preserving a T1 contrast inside cells that provide a robust in vivo detection using T1-weighted MR images. These results will strengthen the role of gadolinium as complex to gold in order to tune Gd(@AuNPs) as an innovative diagnostic agent in the field of nanomedicine.
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Affiliation(s)
- Fatima Aouidat
- CNRS, UMR 7244, CSPBAT, Laboratory of Chemistry, Structures and Properties of Biomaterials And Therapeutic Agents University Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - Sarah Boumati
- UTCBS – Chimie ParisTech – University Paris Descartes - CNRS UMR 8258 – INSERM U1022 Equipe “Synthesis, Electrochemistry, Imaging and Analytical Systems for Diagnostics” SEISAD, Paris, France
| | - Memona Khan
- CNRS, UMR 7244, CSPBAT, Laboratory of Chemistry, Structures and Properties of Biomaterials And Therapeutic Agents University Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - Frederik Tielens
- General Chemistry (ALGC), Vrije University of Brussel (Free University Brussels-VUB), Brussel, Belgium
| | - Bich-Thuy Doan
- UTCBS – Chimie ParisTech – University Paris Descartes - CNRS UMR 8258 – INSERM U1022 Equipe “Synthesis, Electrochemistry, Imaging and Analytical Systems for Diagnostics” SEISAD, Paris, France
| | - Jolanda Spadavecchia
- CNRS, UMR 7244, CSPBAT, Laboratory of Chemistry, Structures and Properties of Biomaterials And Therapeutic Agents University Paris 13, Sorbonne Paris Cité, Bobigny, France
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Samanta S, Rajasekhar K, Babagond V, Govindaraju T. Small Molecule Inhibits Metal-Dependent and -Independent Multifaceted Toxicity of Alzheimer's Disease. ACS Chem Neurosci 2019; 10:3611-3621. [PMID: 31140779 DOI: 10.1021/acschemneuro.9b00216] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Alzheimer's disease (AD) is one of the most devastating forms of dementia, without reliable treatments to cure, delay the onset, or prevent the disease progression. The proposed toxic mechanisms of AD include amyloidogenesis of amyloid β (Aβ), metal ion dyshomeostasis, redox active metal-Aβ inclusion complex formation, and generation of excessive reactive oxygen and nitrogen species (ROS and RNS). The imbalance in redox homeostasis causes oxidative stress, DNA damage, mitochondrial dysfunction, and inflammation, which collectively become a major hurdle in the development of effective therapeutic agents for multifactorial AD. This necessitates a multifunctional strategy to develop effective therapeutic agents to inhibit multifaceted toxicity. In this context, we report a rational design, synthesis, and detailed study to identify a small molecule multifunctional modulator (MFM) inspired by the human origin tripeptide. The lead, MFM 4, chelates and sequesters metal ions, disrupts their redox cycles, prevents excessive ROS production and oxidative stress, ameliorates oxidative DNA damage and mitochondrial dysfunction, and modulates Nrf2 protein signaling under oxidative stress conditions by eliminating the toxic stress elements. The MFM 4 was found to inhibit metal-dependent and -independent Aβ aggregation and qualified as a suitable candidate to inhibit Aβ-induced neuronal toxicity. The NMR spectroscopy study revealed molecular-level interactions of 4 with Aβ42, which explain the mechanism of aggregation inhibition. Furthermore, 4 effectively inhibited inflammation as revealed by reduction in nitric oxide (NO) production in LPS-activated glial cells. These key features make 4 a potential MFM platform to develop therapeutic agents for metal (Cu, Zn and Fe)-dependent and -independent multifaceted Aβ toxicity of AD.
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Affiliation(s)
- Sourav Samanta
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, 560064 Karnataka, India
| | - Kolla Rajasekhar
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, 560064 Karnataka, India
| | - Vardhaman Babagond
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, 560064 Karnataka, India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru, 560064 Karnataka, India
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Rhodamine probes for Fe3+: theoretical calculation for specific recognition and instant fluorescent bioimaging. Future Med Chem 2019; 11:1859-1869. [DOI: 10.4155/fmc-2019-0077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aim: To overcome the existing difficulty in distinguishing Fe(III) from Fe(II), rhodamine-containing Fe3+ probes, giving off different fluorescence responses to ferric and ferrous ions, were synthesized. Materials & methods: Color change in Fe3+ recognition, accompanying spirolactam opening–closing, could be used for ‘naked-eye’ detection. Theoretical calculations revealed the possible Fe3+-probe combination mechanism. Results: Apart from the probes’ specific response toward Fe3+, the Fe3+-probe demonstrated highly quantitative relationships in fluorescence titration, instant labeling and dynamic tracking of intracellular Fe3+ in bioimaging. Conclusion: Cytotoxity and bioimaging in living L929 suggested the probes’ future applications as real-time detection methods for Fe3+ in clinical diagnosis. Instant and time-lapse imagings, based on fluorescence-time stability of Fe3+-probe, enables the dynamic labeling and tracking of Fe3+ in living systems.
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25
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McInerney MP, Pan Y, Volitakis I, Bush AI, Short JL, Nicolazzo JA. The Effects of Clioquinol on P-glycoprotein Expression and Biometal Distribution in the Mouse Brain Microvasculature. J Pharm Sci 2019; 108:2247-2255. [DOI: 10.1016/j.xphs.2019.01.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/15/2019] [Accepted: 01/31/2019] [Indexed: 12/28/2022]
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Yue Y, Xie Z, Chu Y, Shi W. A Novel Fluorescent Probe Based on Spiro[chromeno[2,3-c]pyrazole-4,1′-[2]benzofuran]-3′-one for Detecting Copper(II) ions in Aqueous Solution. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2019. [DOI: 10.1134/s1070428019060186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Reinert A, Morawski M, Seeger J, Arendt T, Reinert T. Iron concentrations in neurons and glial cells with estimates on ferritin concentrations. BMC Neurosci 2019; 20:25. [PMID: 31142282 PMCID: PMC6542065 DOI: 10.1186/s12868-019-0507-7] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/21/2019] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Brain iron is an essential as well as a toxic redox active element. Physiological levels are not uniform among the different cell types. Besides the availability of quantitative methods, the knowledge about the brain iron lags behind. Thereby, disclosing the mechanisms of brain iron homeostasis helps to understand pathological iron-accumulations in diseased and aged brains. With our study we want to contribute closing the gap by providing quantitative data on the concentration and distribution of iron in neurons and glial cells in situ. Using a nuclear microprobe and scanning proton induced X-ray emission spectrometry we performed quantitative elemental imaging on rat brain sections to analyze the iron concentrations of neurons and glial cells. RESULTS Neurons were analyzed in the neocortex, subiculum, substantia nigra and deep cerebellar nuclei revealing an iron level between [Formula: see text] and [Formula: see text]. The iron concentration of neocortical oligodendrocytes is fivefold higher, of microglia threefold higher and of astrocytes twofold higher compared to neurons. We also analyzed the distribution of subcellular iron concentrations in the cytoplasm, nucleus and nucleolus of neurons. The cytoplasm contains on average 73% of the total iron, the nucleolus-although a hot spot for iron-due to its small volume only 6% of total iron. Additionally, the iron level in subcellular fractions were measured revealing that the microsome fraction, which usually contains holo-ferritin, has the highest iron content. We also present an estimate of the cellular ferritin concentration calculating [Formula: see text] ferritin molecules per [Formula: see text] in rat neurons. CONCLUSION Glial cells are the most iron-rich cells in the brain. Imbalances in iron homeostasis that lead to neurodegeneration may not only be originate from neurons but also from glial cells. It is feasible to estimate the ferritin concentration based on measured iron concentrations and a reasonable assumptions on iron load in the brain.
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Affiliation(s)
- Anja Reinert
- Faculty of Veterinary Medicine, Leipzig University, An den Tierkliniken 43, 04103 Leipzig, Germany
| | - Markus Morawski
- Paul Flechsig Institute, Liebigstr. 58, 04103 Leipzig, Germany
| | - Johannes Seeger
- Faculty of Veterinary Medicine, Leipzig University, An den Tierkliniken 43, 04103 Leipzig, Germany
| | - Thomas Arendt
- Paul Flechsig Institute, Liebigstr. 58, 04103 Leipzig, Germany
| | - Tilo Reinert
- Max Planck Institute, Stephanstr. 1A, 04103 Leipzig, Germany
- Felix Bloch Institute, Linnéstr. 5, 04103 Leipzig, Germany
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28
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Laser Ablation Inductively Coupled Plasma Spectrometry: Metal Imaging in Experimental and Clinical Wilson Disease. INORGANICS 2019. [DOI: 10.3390/inorganics7040054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Wilson disease is an inherited disorder caused by mutations in the ATP7B gene resulting in copper metabolism disturbances. As a consequence, copper accumulates in different organs with most common presentation in liver and brain. Chelating agents that nonspecifically chelate copper, and promote its urinary excretion, or zinc salts interfering with the absorption of copper from the gastrointestinal tract, are current medications. Also gene therapy, restoring ATP7B gene function or trials with bis-choline tetrathiomolybdate (WTX101) removing excess copper from intracellular hepatic copper stores and increasing biliary copper excretion, is promising in reducing body’s copper content. Therapy efficacy is mostly evaluated by testing for evidence of liver disease and neurological symptoms, hepatic synthetic functions, indices of copper metabolisms, urinary copper excretions, or direct copper measurements. However, several studies conducted in patients or Wilson disease models have shown that not only the absolute concentration of copper, but also its spatial distribution within the diseased tissue is relevant for disease severity and outcome. Here we discuss laser ablation inductively coupled plasma spectrometry imaging as a novel method for accurate determination of trace element concentrations with high diagnostic sensitivity, spatial resolution, specificity, and quantification ability in experimental and clinical Wilson disease specimens.
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Pushie MJ, Kelly ME, Hackett MJ. Direct label-free imaging of brain tissue using synchrotron light: a review of new spectroscopic tools for the modern neuroscientist. Analyst 2019; 143:3761-3774. [PMID: 29961790 DOI: 10.1039/c7an01904a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The incidence of brain disease and brain disorders is increasing on a global scale. Unfortunately, development of new therapeutic strategies has not increased at the same rate, and brain diseases and brain disorders now inflict substantial health and economic impacts. A greater understanding of the fundamental neurochemistry that underlies healthy brain function, and the chemical pathways that manifest in brain damage or malfunction, are required to enable and accelerate therapeutic development. A previous limitation to the study of brain function and malfunction has been the limited number of techniques that provide both a wealth of biochemical information, and spatially resolved information (i.e., there was a previous lack of techniques that provided direct biochemical or elemental imaging at the cellular level). In recent times, a suite of direct spectroscopic imaging techniques, such as Fourier transform infrared spectroscopy (FTIR), X-ray fluorescence microscopy (XFM), and X-ray absorption spectroscopy (XAS) have been adapted, optimized and integrated into the field of neuroscience, to fill the above mentioned capability-gap. Advancements at synchrotron light sources, such as improved light intensity/flux, increased detector sensitivities and new capabilities of imaging/optics, has pushed the above suite of techniques beyond "proof-of-concept" studies, to routine application to study complex research problems in the field of neuroscience (and other scientific disciplines). This review examines several of the major advancements that have occurred over the last several years, with respect to FTIR, XFM and XAS capabilities at synchrotron facilities, and how the increases in technical capabilities have being integrated and used in the field of neuroscience.
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Affiliation(s)
- M J Pushie
- Department of Surgery, Division of Neurosurgery, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, Saskatchewan S7N 5E5, Canada
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Grasso G. Mass spectrometry is a multifaceted weapon to be used in the battle against Alzheimer's disease: Amyloid beta peptides and beyond. MASS SPECTROMETRY REVIEWS 2019; 38:34-48. [PMID: 29905953 DOI: 10.1002/mas.21566] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/09/2018] [Indexed: 06/08/2023]
Abstract
Amyloid-β peptide (Aβ) accumulation and aggregation have been considered for many years the main cause of Alzheimer's disease (AD), and therefore have been the principal target of investigation as well as of the proposed therapeutic approaches (Grasso [2011] Mass Spectrom Rev. 30: 347-365). However, the amyloid cascade hypothesis, which considers Aβ accumulation the only causative agent of the disease, has proven to be incomplete if not wrong. In recent years, actors such as metal ions, oxidative stress, and other cofactors have been proposed as possible co-agents or, in some cases, main causative factors of AD. In this scenario, MS investigation has proven to be fundamental to design possible diagnostic strategies of this elusive disease, as well as to understand the biomolecular mechanisms involved, in the attempt to find a possible therapeutic solution. We review the current applications of MS in the search for possible Aβ biomarkers of AD to help the diagnosis of the disease. Recent examples of the important contributions that MS has given to prove or build theories on the molecular pathways involved with such terrible disease are also reviewed.
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Affiliation(s)
- Giuseppe Grasso
- Department of Chemical Sciences, University of Catania, Catania, Italy
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31
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Dučić T, Paunesku T, Chen S, Ninković M, Speling S, Wilke C, Lai B, Woloschak G. Structural and elemental changes in glioblastoma cells in situ: complementary imaging with high resolution visible light- and X-ray microscopy. Analyst 2018; 142:356-365. [PMID: 27981320 DOI: 10.1039/c6an02532c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The glioblastoma (GBM) is characterized by a short median survival and an almost 100% tumor related mortality. GBM cells exhibit highly invasive behavior whose mechanisms are not yet fully understood. The present study explores application of X-ray and visible light microscopy to display the elemental and structural images of cells from 3 patient derived GMB samples and an established GMB cell line. Slight differences in elemental concentrations, in actin cytoskeleton organization and cell morphology were noted between all cells types by X-ray fluorescence and full field soft X-ray microscopy, as well as the Structured Illumination Super-resolution Microscope (SIM). Different sample preparation approaches were used to match each imaging technique. While preparation for SIM included cell fixation and staining, intact frozen hydrated cells were used for the trace element imaging by hard X-ray fluorescence and exploration of the structural features by soft X-ray absorption tomography. Each technique documented differences between samples with regard to morphology and elemental composition and underscored the importance of use of multiple patient derived samples for detailed GBM study.
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Affiliation(s)
- Tanja Dučić
- CELLS - ALBA, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Barcelona, Spain.
| | - Tatjana Paunesku
- Department of Radiation Oncology, Northwestern University, 300 E. Superior St, Chicago, IL 60611, USA
| | - Si Chen
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Milena Ninković
- Department of Neurosurgery, Georg-August University Medical Centre, 37075 Göttingen, Germany
| | - Swetlana Speling
- Department of Neurosurgery, Georg-August University Medical Centre, 37075 Göttingen, Germany
| | - Charlene Wilke
- Northwestern University, Biological Imaging Facility, 2205 Tech Drive, Evanston, IL 60208, USA
| | - Barry Lai
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Gayle Woloschak
- Department of Radiation Oncology, Northwestern University, 300 E. Superior St, Chicago, IL 60611, USA
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González de San Román E, Bidmon HJ, Malisic M, Susnea I, Küppers A, Hübbers R, Wree A, Nischwitz V, Amunts K, Huesgen PF. Molecular composition of the human primary visual cortex profiled by multimodal mass spectrometry imaging. Brain Struct Funct 2018; 223:2767-2783. [PMID: 29633039 PMCID: PMC5995978 DOI: 10.1007/s00429-018-1660-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 03/29/2018] [Indexed: 12/14/2022]
Abstract
The primary visual cortex (area V1) is an extensively studied part of the cerebral cortex with well-characterized connectivity, cellular and molecular architecture and functions (for recent reviews see Amunts and Zilles, Neuron 88:1086-1107, 2015; Casagrande and Xu, Parallel visual pathways: a comparative perspective. The visual neurosciences, MIT Press, Cambridge, pp 494-506, 2004). In humans, V1 is defined by heavily myelinated fibers arriving from the radiatio optica that form the Gennari stripe in cortical layer IV, which is further subdivided into laminae IVa, IVb, IVcα and IVcβ. Due to this unique laminar pattern, V1 represents an excellent region to test whether multimodal mass spectrometric imaging could reveal novel biomolecular markers for a functionally relevant parcellation of the human cerebral cortex. Here we analyzed histological sections of three post-mortem brains with matrix-assisted laser desorption/ionization mass spectrometry imaging and laser ablation inductively coupled plasma mass spectrometry imaging to investigate the distribution of lipids, proteins and metals in human V1. We identified 71 peptides of 13 different proteins by in situ tandem mass spectrometry, of which 5 proteins show a differential laminar distribution pattern revealing the border between V1 and V2. High-accuracy mass measurements identified 123 lipid species, including glycerolipids, glycerophospholipids and sphingolipids, of which at least 20 showed differential distribution within V1 and V2. Specific lipids labeled not only myelinated layer IVb, but also IVa and especially IVc in a layer-specific manner, but also and clearly separated V1 from V2. Elemental imaging further showed a specific accumulation of copper in layer IV. In conclusion, multimodal mass spectrometry imaging identified novel biomolecular and elemental markers with specific laminar and inter-areal differences. We conclude that mass spectrometry imaging provides a promising new approach toward multimodal, molecule-based cortical parcellation.
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Affiliation(s)
- Estibaliz González de San Román
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Hans-Jürgen Bidmon
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Milena Malisic
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Iuliana Susnea
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
| | - Astrid Küppers
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
| | - Rene Hübbers
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Institute of Neuroscience and Medicine, INM-1, Forschungszentrum Jülich, Jülich, Germany
| | - Andreas Wree
- Institute of Anatomy, Rostock University Medical Center, Rostock, Germany
| | - Volker Nischwitz
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany
| | - Katrin Amunts
- Cécile and Oskar Vogt Institute of Brain Research, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
- Institute of Neuroscience and Medicine, INM-1, Forschungszentrum Jülich, Jülich, Germany.
| | - Pitter F Huesgen
- Central Institute of Engineering, Electronics and Analytics, ZEA-3, Forschungszentrum Jülich, Jülich, Germany.
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Zhang R, Li L, Sultanbawa Y, Xu ZP. X-ray fluorescence imaging of metals and metalloids in biological systems. AMERICAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING 2018; 8:169-188. [PMID: 30042869 PMCID: PMC6056246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Abstract
Metals and metalloids play fundamental roles in many physiological processes in biological systems, but imbalance of these elements in the body may cause many diseases, such as Parkinson's disease, Alzheimer's disease, and even cancers. Thus, to better understand the metallome in health and disease, quantitative determination of their localization, concentration, speciation, and related metabolism at cellular or subcellular levels is of great importance. X-ray fluorescence (XRF) imaging, as a new generation of analytical technique, has been reported as an ideal tool to quantitatively map multiple metals and metalloids in tissues with reasonable sensitivity, specificity, and resolution. In the current review, we have introduced the general concept of XRF imaging technique, reviewed the recent advances using XRF imaging to investigate toxicology of metals and metalloids in life science, and discussed the roles of metals and metalloids in various diseases, including cancers and neurodegenerative diseases. We believe that future research on revealing the roles of metals and metalloids in biological systems will directly benefit from the important breakthroughs in developing XRF imaging techniques.
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Affiliation(s)
- Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of QueenslandSt Lucia, QLD 4072, Australia
| | - Li Li
- Australian Institute for Bioengineering and Nanotechnology, The University of QueenslandSt Lucia, QLD 4072, Australia
| | - Yasmina Sultanbawa
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of QueenslandCoopers Plains, QLD 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of QueenslandSt Lucia, QLD 4072, Australia
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34
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Busser B, Moncayo S, Coll JL, Sancey L, Motto-Ros V. Elemental imaging using laser-induced breakdown spectroscopy: A new and promising approach for biological and medical applications. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.12.006] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Biesemeier A, Eibl O, Eswara S, Audinot JN, Wirtz T, Schraermeyer U. Transition metals and trace elements in the retinal pigment epithelium and choroid: correlative ultrastructural and chemical analysis by analytical electron microscopy and nano-secondary ion mass spectrometry. Metallomics 2018; 10:296-308. [PMID: 29327028 DOI: 10.1039/c7mt00259a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding the localisation and abundance of structural elements, trace elements and especially transition metals like Cu and Zn in ocular tissue sections is important for physiology, and also for the characterisation of diseases related to oxidative stress like age-related macular degeneration. Transition metal abundances were investigated in an aged donor eye by nano-secondary ion mass spectrometry (nano-SIMS) elemental mapping using Cs+ and O- primary ions, respectively, and correlated to their respective mole fractions investigated by analytical electron microscopy (AEM). The ultrastructure of the tissue and the elemental composition of melanosomes of the choroid and RPE, and RPE lipofuscin and melanolipofuscin granules can adequately be investigated by nano-SIMS using the secondary ion maps. Melanosomes, 0.5-1 μm in size, yield sulphur maps and maps of stored metals like calcium, sodium and copper. Lipofuscin shows especially high phosphorus signals. Elements with mole fractions of about 0.1 at%, e.g. for P and Cu, as investigated by AEM before, can be validated using simultaneous SIMS maps with an estimated lateral resolution of 66 nm with typical acquisition times of 30 minutes for each area of interest. However, Zn (0.19 at%) was not detected by SIMS. Nano-SIMS imaging of CN-, PO2-, S-, Cu-, Ca+, Fe+ and Na+ ions provides excellent detection limits demonstrating the possibilities for chemical mapping with high-sensitivity trace element detection and reduced acquisition times. Quantification of nano-SIMS data was achieved by correlating mole fractions obtained by AEM to secondary ions per pixel obtained by nano-SIMS. Both methods yield the melanin type in melanosomes and trace metal storage.
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Affiliation(s)
- Antje Biesemeier
- Division of Experimental Vitreoretinal Surgery, Center for Ophthalmology, Schleichstr. 12/1, 72076 Tuebingen, Germany.
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36
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Zhao YH, Luo Y, Wang H, Guo T, Zhou H, Tan H, Zhou Z, Long Y, Tang Z. A New Fluorescent Probe Based on Aggregation Induced Emission for Selective and Quantitative Determination of Copper(II) and its Further Application to Cysteine Detection. ChemistrySelect 2018. [DOI: 10.1002/slct.201702603] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yun-Hui Zhao
- School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
| | - Yueyang Luo
- School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
| | - Han Wang
- School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
| | - Tao Guo
- College of Chemistry, Chemical and Environmental Engineering; Henan University of Technology, Zhengzhou; Henan 450001 PR China
| | - Hangbin Zhou
- School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
| | - Hailong Tan
- School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
| | - Zhihua Zhou
- School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
| | - Yunfei Long
- School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
| | - Zilong Tang
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education; Hunan University of Science and Technology, Xiangtan; Hunan 411201 PR China
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Dressler VL, Müller EI, Pozebon D. Bioimaging Metallomics. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1055:139-181. [DOI: 10.1007/978-3-319-90143-5_7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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38
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Lai L, Jiang X, Han S, Zhao C, Du T, Rehman FU, Zheng Y, Li X, Liu X, Jiang H, Wang X. In Vivo Biosynthesized Zinc and Iron Oxide Nanoclusters for High Spatiotemporal Dual-Modality Bioimaging of Alzheimer's Disease. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9018-9024. [PMID: 28806518 DOI: 10.1021/acs.langmuir.7b01516] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Alzheimer's disease is still incurable and neurodegenerative, and there is a lack of detection methods with high sensitivity and specificity. In this study, by taking different month old Alzheimer's mice as models, we have explored the possibility of the target bioimaging of diseased sites through the initial injection of zinc gluconate solution into Alzheimer's model mice post-tail vein and then the combination of another injection of ferrous chloride (FeCl2) solution into the same Alzheimer's model mice post-stomach. Our observations indicate that both zinc gluconate solution and FeCl2 solution could cross the blood-brain barrier (BBB) to biosynthesize the fluorescent zinc oxide nanoclusters and magnetic iron oxide nanoclusters, respectively, in the lesion areas of the AD model mice, thus enabling high spatiotemporal dual-modality bioimaging (i.e., including fluorescence bioimaging (FL) and magnetic resonance imaging (MRI)) of Alzheimer's disease for the first time. The result presents a novel promising strategy for the rapid and early diagnosis of Alzheimer's disease.
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Affiliation(s)
- Lanmei Lai
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Xuerui Jiang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Shanying Han
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Chunqiu Zhao
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Tianyu Du
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Fawad Ur Rehman
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Youkun Zheng
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Xiaoqi Li
- Nanjing Foreign Language School, Nanjing 210096, China
| | - Xiaoli Liu
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Hui Jiang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
| | - Xuemei Wang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, China
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Gómez-Nieto B, Gismera MJ, Sevilla MT, Satrústegui J, Procopio JR. Micro-sampling method based on high-resolution continuum source graphite furnace atomic absorption spectrometry for calcium determination in blood and mitochondrial suspensions. Talanta 2017; 170:15-21. [PMID: 28501151 DOI: 10.1016/j.talanta.2017.03.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/23/2017] [Accepted: 03/28/2017] [Indexed: 12/31/2022]
Abstract
A micro-sampling and straightforward method based on high resolution continuum source atomic absorption spectrometry (HR-CS AAS) was developed to determine extracellular and intracellular Ca in samples of interest in clinical and biomedical analysis. Solid sampling platforms were used to introduce the micro-samples into the graphite furnace atomizer. The secondary absorption line for Ca, located at 239.856nm, was selected to carry out the measurements. Experimental parameters such as pyrolysis and atomization temperatures and the amount of sample introduced for the measurements were optimized. Calibration was performed using aqueous standards and the approach to measure at the wings of the absorption lines was employed for the expansion of the linear response range. The limit of detection was of 0.02mgL-1 Ca (0.39ng Ca) and the upper limit of linear range was increased up to 8.0mgL-1 Ca (160ng Ca). The proposed method was used to determine Ca in mitochondrial suspensions and whole blood samples with successful results. Adequate recoveries (within 91-107%) were obtained in the tests performed for validation purposes.
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Affiliation(s)
- Beatriz Gómez-Nieto
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Avda. Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Mª Jesús Gismera
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Avda. Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Mª Teresa Sevilla
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Avda. Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Jorgina Satrústegui
- Departamento de Biología Molecular, Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Jesús R Procopio
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Avda. Francisco Tomás y Valiente, 7, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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40
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Drew SC. The Case for Abandoning Therapeutic Chelation of Copper Ions in Alzheimer's Disease. Front Neurosci 2017; 11:317. [PMID: 28626387 PMCID: PMC5455140 DOI: 10.3389/fnins.2017.00317] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 05/18/2017] [Indexed: 12/26/2022] Open
Abstract
The "therapeutic chelation" approach to treating Alzheimer's disease (AD) evolved from the metals hypothesis, with the premise that small molecules can be designed to prevent transition metal-induced amyloid deposition and oxidative stress within the AD brain. Over more than 20 years, countless in vitro studies have been devoted to characterizing metal binding, its effect on Aβ aggregation, ROS production, and in vitro toxicity. Despite a lack of evidence for any clinical benefit, the conjecture that therapeutic chelation is an effective approach for treating AD remains widespread. Here, the author plays the devil's advocate, questioning the experimental evidence, the dogma, and the value of therapeutic chelation, with a major focus on copper ions.
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Affiliation(s)
- Simon C. Drew
- Department of Medicine, Royal Melbourne Hospital, University of MelbourneMelbourne, VIC, Australia
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41
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Sela H, Cohen H, Karpas Z, Zeiri Y. Distinctive hippocampal zinc distribution patterns following stress exposure in an animal model of PTSD. Metallomics 2017; 9:323-333. [PMID: 28252129 DOI: 10.1039/c6mt00207b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Emerging evidence suggests that zinc (Zn) deficiency is associated with depression and anxiety in both human and animal studies. The present study sought to assess whether there is an association between the magnitude of behavioral responses to stress and patterns of Zn distribution. The work has focused on one case study, the association between an animal model of posttraumatic stress disorder (PTSD) and the Zn distribution in the rat hippocampus. Behaviors were assessed with the elevated plus-maze and acoustic startle response tests 7 days later. Preset cut-off criteria classified exposed animals according to their individual behavioral responses. To further characterize the distribution of Zn that occurs in the hippocampus 8 days after the exposure, laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) imaging was used. It has been found that Zn distribution in the dentate gyrus (DG) sub-region in the hippocampus is clearly more widely spread for rats that belong to the extreme behavioral response (EBR) group as compared to the control group. Comparison of the Zn concentration changes in the cornu ammonis 1 (CA1) and the DG sub-regions of the hippocampus shows that the concentration changes are statistically significantly higher in the EBR rats compared to the rats in the control and minimal behavioral response (MBR) groups. In order to understand the mechanism of stress-induced hippocampal Zn dyshomeostasis, relative quantitative analyses of metallothionein (MT), B-cell lymphoma 2 (Bcl-2) and caspase 3 immunoreactivity were performed. Significant differences in the number of caspase-ir and Bcl-2 cells were found in the hippocampal DG sub-region between the EBR group and the control and MBR groups. The results of this study demonstrate a statistically significant association between the degree of behavioral disruption resulting from stress exposure and the patterns of Zn distribution and concentration changes in the various hippocampal regions. Taken together, these findings indicate that Zn distribution patterns play an active role in the neurobiological response to predator scent stress.
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Affiliation(s)
- Hagit Sela
- Biomedical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel. and Department of Chemistry, NRCN, P.O. Box 9001, Beer-Sheva 8419001, Israel.
| | - Hagit Cohen
- Beer-Sheva Mental Health Center, The State of Israel Ministry of Health, Anxiety and Stress Research Unit, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Zeev Karpas
- Department of Chemistry, NRCN, P.O. Box 9001, Beer-Sheva 8419001, Israel.
| | - Yehuda Zeiri
- Biomedical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel. and Department of Chemistry, NRCN, P.O. Box 9001, Beer-Sheva 8419001, Israel.
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Gu B, Huang L, Su W, Duan X, Li H, Yao S. A benzothiazole-based fluorescent probe for distinguishing and bioimaging of Hg 2+ and Cu 2+. Anal Chim Acta 2017; 954:97-104. [DOI: 10.1016/j.aca.2016.11.044] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/14/2016] [Accepted: 11/17/2016] [Indexed: 12/12/2022]
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Lago L, Nunes EA, Vigato AA, Souza VCO, Barbosa F, Sato JR, Batista BL, Cerchiaro G. Flow of essential elements in subcellular fractions during oxidative stress. Biometals 2017; 30:83-96. [PMID: 28083799 DOI: 10.1007/s10534-016-9988-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/27/2016] [Indexed: 12/31/2022]
Abstract
Essential trace elements are commonly found in altered concentrations in the brains of patients with neurodegenerative diseases. Many studies in trace metal determination and quantification are conducted in tissue, cell culture or whole brain. In the present investigation, we determined by ICP-MS Fe, Cu, Zn, Ca, Se, Co, Cr, Mg, and Mn in organelles (mitochondria, nuclei) and whole motor neuron cell cultured in vitro. We performed experiments using two ways to access oxidative stress: cell treatments with H2O2 or Aβ-42 peptide in its oligomeric form. Both treatments caused accumulation of markers of oxidative stress, such as oxidized proteins and lipids, and alteration in DNA. Regarding trace elements, cells treated with H2O2 showed higher levels of Zn and lower levels of Ca in nuclei when compared to control cells with no oxidative treatments. On the other hand, cells treated with Aβ-42 peptide in its oligomeric form showed higher levels of Mg, Ca, Fe and Zn in nuclei when compared to control cells. These differences showed that metal flux in cell organelles during an intrinsic external oxidative condition (H2O2 treatment) are different from an intrinsic external neurodegenerative treatment.
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Affiliation(s)
- Larissa Lago
- Center for Natural Sciences and Humanities, Universidade Federal do ABC - UFABC, Santo André, SP, Brazil
| | - Emilene A Nunes
- Center for Natural Sciences and Humanities, Universidade Federal do ABC - UFABC, Santo André, SP, Brazil
| | - Aryane A Vigato
- Center for Natural Sciences and Humanities, Universidade Federal do ABC - UFABC, Santo André, SP, Brazil
| | - Vanessa C O Souza
- Department of Clinical Analysis, Toxicological and Bromatological, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo - USP, Ribeirão Prêto, Brazil
| | - Fernando Barbosa
- Department of Clinical Analysis, Toxicological and Bromatological, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo - USP, Ribeirão Prêto, Brazil
| | - João R Sato
- Center for Mathematics, Computation, and Cognition, Universidade Federal do ABC - UFABC, São Bernardo do Campo, SP, Brazil
| | - Bruno L Batista
- Center for Natural Sciences and Humanities, Universidade Federal do ABC - UFABC, Santo André, SP, Brazil
| | - Giselle Cerchiaro
- Center for Natural Sciences and Humanities, Universidade Federal do ABC - UFABC, Santo André, SP, Brazil.
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Ackerman CM, Lee S, Chang CJ. Analytical Methods for Imaging Metals in Biology: From Transition Metal Metabolism to Transition Metal Signaling. Anal Chem 2017; 89:22-41. [PMID: 27976855 PMCID: PMC5827935 DOI: 10.1021/acs.analchem.6b04631] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Cheri M. Ackerman
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Sumin Lee
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Christopher J. Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
- Howard Hughes Medical Institute, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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45
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Lari M, Biver T, Busto N, Lozano HJ, Leal JM, Secco F, García B. Binding of Al(iii) to synthetic RNA and metal-mediated strand aggregation. Dalton Trans 2017; 46:16671-16681. [DOI: 10.1039/c7dt02830j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Kinetic curve of the binding of aluminum to RNA and metal-induced strand aggregation.
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Affiliation(s)
- Matteo Lari
- Departamento de Química
- Universidad de Burgos
- 09001 Burgos
- Spain
| | - Tarita Biver
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Natalia Busto
- Departamento de Química
- Universidad de Burgos
- 09001 Burgos
- Spain
| | | | - José M. Leal
- Departamento de Química
- Universidad de Burgos
- 09001 Burgos
- Spain
| | - Fernando Secco
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- 56124 Pisa
- Italy
| | - Begoña García
- Departamento de Química
- Universidad de Burgos
- 09001 Burgos
- Spain
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46
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Enge TG, Ecroyd H, Jolley DF, Yerbury JJ, Dosseto A. Longitudinal assessment of metal concentrations and copper isotope ratios in the G93A SOD1 mouse model of amyotrophic lateral sclerosis. Metallomics 2017; 9:161-174. [DOI: 10.1039/c6mt00270f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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47
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Combined in-situ imaging of structural organization and elemental composition of substantia nigra neurons in the elderly. Talanta 2016; 161:368-376. [DOI: 10.1016/j.talanta.2016.08.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 12/24/2022]
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48
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Susnea I, Weiskirchen R. Trace metal imaging in diagnostic of hepatic metal disease. MASS SPECTROMETRY REVIEWS 2016; 35:666-686. [PMID: 25677057 DOI: 10.1002/mas.21454] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Revised: 11/25/2014] [Accepted: 12/02/2014] [Indexed: 06/04/2023]
Abstract
The liver is the most central organ and the largest gland of the body that influences and controls a variety of metabolic and catabolic processes. It produces inconceivable many essential proteins, is responsible for the recovery of various food components, degrades toxins, mediates the bile production, and is involved in the excretion of unwanted metabolites. Several of these anabolic or catabolic functions of the liver depend on trace elements. These are either integral part of enzymes, cofactors, or act as chemical catalysts. Therefore, a lack of trace elements can lead to organ failure or systemic illness. Conversely, excessive hepatic trace element deposition resulting from genetic disorders, intoxication, extensive dietary supply, or long-term parenteral nutrition may cause hepatic inflammation, fibrosis, cirrhosis, and even hepatocellular carcinoma. Although specific serum parameters currently allow rough assessment of metal deficit and excess, the precise quantification of hepatic metal content in liver is presently only possible by different titration or staining techniques of biopsy specimens. Recently, novel innovative metal imaging techniques were developed that are on the way to replace these traditional methods. In the present review, we summarize the function of different trace elements in liver health and disease and discuss the present knowledge on how quantitative biometal imaging techniques such as synchrotron X-ray fluorescence microscopy, secondary ion mass spectrometry, and laser ablation inductively coupled plasma mass spectrometry enrich diagnostics in the detection and quantification of hepatic metal disorders. We will further discuss sample preparation, sensitivity, spatial resolution, specificity, quantification strategies, and potential future applications of metal bioimaging in experimental research and clinical daily routine. © 2015 Wiley Periodicals, Inc. Mass Spec Rev 35:666-686, 2016.
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Affiliation(s)
- Iuliana Susnea
- Central Institute of Engineering, Electronics and Analytics (ZEA-3), Forschungszentrum Jülich, D-52425, Jülich, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, RWTH University Hospital Aachen, D-52074, Aachen, Germany.
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Schaumlöffel D, Hutchinson R, Malherbe J, Coustumer PL, Gontier E, Isaure MP. Novel Methods for Bioimaging Including LA-ICP-MS, NanoSIMS, TEM/X-EDS, and SXRF. Metallomics 2016. [DOI: 10.1002/9783527694907.ch4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Dirk Schaumlöffel
- Université de Pau et des Pays de l'Adour, CNRS; Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM); UMR 5254 64000 Pau France
| | - Robert Hutchinson
- Electro Scientific Industries; 8 Avro Court, Ermine Business Park Huntingdon, Cambridge PE29 6XS UK
| | - Julien Malherbe
- Université de Pau et des Pays de l'Adour, CNRS; Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM); UMR 5254 64000 Pau France
| | - Philippe Le Coustumer
- Université de Bordeaux, UF Sciences de la Terre et Environnement; Allée G. Saint-Hillaire 33615 Pessac France
| | - Etienne Gontier
- Université de Bordeaux, Bordeaux Imaging Center; UMS 3420 CNRS - US4 INSERM, Pôle d'imagerie électronique; 146 rue Léo Saignat 33076 Bordeaux France
| | - Marie-Pierre Isaure
- Université de Pau et des Pays de l'Adour, CNRS; Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM); UMR 5254 64000 Pau France
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50
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Jin Q, Paunesku T, Lai B, Gleber SC, Chen SI, Finney L, Vine D, Vogt S, Woloschak G, Jacobsen C. Preserving elemental content in adherent mammalian cells for analysis by synchrotron-based x-ray fluorescence microscopy. J Microsc 2016; 265:81-93. [PMID: 27580164 PMCID: PMC5217071 DOI: 10.1111/jmi.12466] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/11/2016] [Accepted: 08/02/2016] [Indexed: 01/20/2023]
Abstract
Trace metals play important roles in biological function, and x-ray fluorescence microscopy (XFM) provides a way to quantitatively image their distribution within cells. The faithfulness of these measurements is dependent on proper sample preparation. Using mouse embryonic fibroblast NIH/3T3 cells as an example, we compare various approaches to the preparation of adherent mammalian cells for XFM imaging under ambient temperature. Direct side-by-side comparison shows that plunge-freezing-based cryoimmobilization provides more faithful preservation than conventional chemical fixation for most biologically important elements including P, S, Cl, K, Fe, Cu, Zn and possibly Ca in adherent mammalian cells. Although cells rinsed with fresh media had a great deal of extracellular background signal for Cl and Ca, this approach maintained cells at the best possible physiological status before rapid freezing and it does not interfere with XFM analysis of other elements. If chemical fixation has to be chosen, the combination of 3% paraformaldehyde and 1.5 % glutaraldehyde preserves S, Fe, Cu and Zn better than either fixative alone. When chemically fixed cells were subjected to a variety of dehydration processes, air drying was proved to be more suitable than other drying methods such as graded ethanol dehydration and freeze drying. This first detailed comparison for x-ray fluorescence microscopy shows how detailed quantitative conclusions can be affected by the choice of cell preparation method.
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Affiliation(s)
- Qiaoling Jin
- Department of Physics & Astronomy, Weinberg College of Arts and Sciences, Evanston, Illinois, U.S.A
| | - Tatjana Paunesku
- Department of Radiation Oncology, Northwestern University, Chicago, Illinois, U.S.A
| | - Barry Lai
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | | | - S I Chen
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - Lydia Finney
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - David Vine
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - Stefan Vogt
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
| | - Gayle Woloschak
- Department of Radiation Oncology, Northwestern University, Chicago, Illinois, U.S.A
| | - Chris Jacobsen
- Department of Physics & Astronomy, Weinberg College of Arts and Sciences, Evanston, Illinois, U.S.A.,Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, U.S.A
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