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Karpov MA, Hobbs C, Jayasinghe SN, Stürzenbaum SR. Metallomic mapping of gut and brain in heavy metal exposed earthworms: A novel paradigm in ecotoxicology. Biochem Biophys Res Commun 2024; 709:149827. [PMID: 38554600 DOI: 10.1016/j.bbrc.2024.149827] [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: 03/07/2024] [Accepted: 03/24/2024] [Indexed: 04/01/2024]
Abstract
This study explored the uptake of lead in the epigeic earthworm Dendrobaena veneta exposed to 0, 1000, and 2500 μg Pb/g soil. The soil metal content was extracted using strong acid digestion and water leaching, and analysed by means of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to estimate absolute and bioavailable concentrations of metals in the soil. The guts and heads of lead-exposed earthworms were processed into formalin-fixed and paraffin embedded sections for high-resolution multi-element metallomic imaging via Laser Ablation ICP-MS (LA-ICP-MS). Metallomic maps of phosphorus, zinc, and lead were produced at 15-μm resolution in the head and gut of D. veneta. Additional 4-μm resolution metallomic maps of the earthworm brains were taken, revealing the detailed localisation of metals in the brain. The Pb bioaccumulated in the chloragogenous tissues of the earthworm in a dose-dependent manner, making it possible to track the extent of soil contamination. The bioaccumulation of P and Zn in earthworm tissues was independent of Pb exposure concentration. This approach demonstrates the utility of LA-ICP-MS as a powerful approach for ecotoxicology and environmental risk assessments.
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Affiliation(s)
- Maxim A Karpov
- Department of Analytical, Environmental and Forensic Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom
| | - Carl Hobbs
- Wolfson Sensory Pain and Regeneration Centre, King's College London, London, United Kingdom
| | - Suwan N Jayasinghe
- Department of Mechanical Engineering, BioPhysics Group, University College London, United Kingdom
| | - Stephen R Stürzenbaum
- Department of Analytical, Environmental and Forensic Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
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Mandot S, Zannoni EM, Cai L, Nie X, Riviere PJL, Wilson MD, Meng LJ. A High-Sensitivity Benchtop X-Ray Fluorescence Emission Tomography (XFET) System With a Full-Ring of X-Ray Imaging-Spectrometers and a Compound-Eye Collimation Aperture. IEEE TRANSACTIONS ON MEDICAL IMAGING 2024; 43:1782-1791. [PMID: 38696285 PMCID: PMC11129545 DOI: 10.1109/tmi.2023.3348791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
The advent of metal-based drugs and metal nanoparticles as therapeutic agents in anti-tumor treatment has motivated the advancement of X-ray fluorescence computed tomography (XFCT) techniques. An XFCT imaging modality can detect, quantify, and image the biodistribution of metal elements using the X-ray fluorescence signal emitted upon X-ray irradiation. However, the majority of XFCT imaging systems and instrumentation developed so far rely on a single or a small number of detectors. This work introduces the first full-ring benchtop X-ray fluorescence emission tomography (XFET) system equipped with 24 solid-state detectors arranged in a hexagonal geometry and a 96-pinhole compound-eye collimator. We experimentally demonstrate the system's sensitivity and its capability of multi-element detection and quantification by performing imaging studies on an animal-sized phantom. In our preliminary studies, the phantom was irradiated with a pencil beam of X-rays produced using a low-powered polychromatic X-ray source (90kVp and 60W max power). This investigation shows a significant enhancement in the detection limit of gadolinium to as low as 0.1 mg/mL concentration. The results also illustrate the unique capabilities of the XFET system to simultaneously determine the spatial distribution and accurately quantify the concentrations of multiple metal elements.
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3
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Chandrapalan T, Kwong RWM. Functional significance and physiological regulation of essential trace metals in fish. J Exp Biol 2021; 224:273675. [PMID: 34882772 DOI: 10.1242/jeb.238790] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Trace metals such as iron, copper, zinc and manganese play essential roles in various biological processes in fish, including development, energy metabolism and immune response. At embryonic stages, fish obtain essential metals primarily from the yolk, whereas in later life stages (i.e. juvenile and adult), the gastrointestine and the gill are the major sites for the acquisition of trace metals. On a molecular level, the absorption of metals is thought to occur at least in part via specific metal ion transporters, including the divalent metal transporter-1 (DMT1), copper transporter-1 (CTR1), and Zrt- and Irt-like proteins (ZIP). A variety of other proteins are also involved in maintaining cellular and systemic metal homeostasis. Interestingly, the expression and function of these metal transport- and metabolism-related proteins can be influenced by a range of trace metals and major ions. Increasing evidence also demonstrates an interplay between the gastrointestine and the gill for the regulation of trace metal absorption. Therefore, there is a complex network of regulatory and compensatory mechanisms involved in maintaining trace metal balance. Yet, an array of factors is known to influence metal metabolism in fish, such as hormonal status and environmental changes. In this Review, we summarize the physiological significance of iron, copper, zinc and manganese, and discuss the current state of knowledge on the mechanisms underlying transepithelial metal ion transport, metal-metal interactions, and cellular and systemic handling of these metals in fish. Finally, we identify knowledge gaps in the regulation of metal homeostasis and discuss potential future research directions.
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Affiliation(s)
| | - Raymond W M Kwong
- Department of Biology, York University, Toronto, Ontario, M3J 1P3, Canada
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4
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Paunesku T, Gordon AC, White S, Harris K, Antipova O, Maxey E, Vogt S, Smith A, Daddario L, Procissi D, Larson A, Woloschak GE. Use of X-Ray Fluorescence Microscopy for Studies on Research Models of Hepatocellular Carcinoma. Front Public Health 2021; 9:711506. [PMID: 34490194 PMCID: PMC8417723 DOI: 10.3389/fpubh.2021.711506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/26/2021] [Indexed: 11/30/2022] Open
Abstract
Introduction: TheraSphere® microspheres containing yttrium 90Y are among many radioembolization agents used clinically to reduce liver tumor burden, and their effects on cancer volume reduction are well-established. At the same time, concerns about off target tissue injury often limit their use. Deeper investigation into tissue distribution and long-term impact of these microspheres could inform us about additional ways to use them in practice. Methods: Healthy rat liver and rabbit liver tumor samples from animals treated with TheraSpheres were sectioned and their elemental maps were generated by X-ray fluorescence microscopy (XFM) at the Advanced Photon Source (APS) synchrotron at Argonne National Laboratory (ANL). Results: Elemental imaging allowed us to identify the presence and distribution of TheraSpheres in animal tissues without the need for additional sample manipulation or staining. Ionizing radiation produced by 90Y radioactive contaminants present in these microspheres makes processing TheraSphere treated samples complex. Accumulation of microspheres in macrophages was observed. Conclusions: This is the first study that used XFM to evaluate the location of microspheres and radionuclides in animal liver and tumor samples introduced through radioembolization. XFM has shown promise in expanding our understanding of radioembolization and could be used for investigation of human patient samples in the future.
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Affiliation(s)
- Tatjana Paunesku
- Radiation Oncology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Andrew C Gordon
- Radiology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Sarah White
- Department of Radiology, Division of Interventional Radiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Kathleen Harris
- Radiology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Olga Antipova
- X-Ray Sciences Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, United States
| | - Evan Maxey
- X-Ray Sciences Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, United States
| | - Stefan Vogt
- X-Ray Sciences Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL, United States
| | - Anthony Smith
- Radiation Oncology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Luiza Daddario
- Radiation Oncology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Daniele Procissi
- Radiology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Andrew Larson
- Radiology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Gayle E Woloschak
- Radiation Oncology Department, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
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5
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Chen S, Lastra RO, Paunesku T, Antipova O, Li L, Deng J, Luo Y, Wanzer MB, Popovic J, Li Y, Glasco AD, Jacobsen C, Vogt S, Woloschak GE. Development of Multi-Scale X-ray Fluorescence Tomography for Examination of Nanocomposite-Treated Biological Samples. Cancers (Basel) 2021; 13:cancers13174497. [PMID: 34503306 PMCID: PMC8430782 DOI: 10.3390/cancers13174497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Metal-oxide nanomaterials enter cancer and normal cells even when not specifically targeted, and often interact with specific cellular structures and biological molecules solely due to their innate physical-chemical properties. This raises concerns for the use of nanoparticles, which can be alleviated only with rigorous studies of nanoparticle–cell interactions, studies independent of post-interaction labeling of nanomaterials. X-ray fluorescence microscopy is an imaging technique that quantifies and maps all chemical elements from the periodic table solely based on their native fluorescence excited by the incoming X-ray. We used two different instruments to interrogate the same sample in 3D at two different resolutions and determine heterogeneity of cell-to-cell interactions with nanomaterials, as well as subcellular nanoparticle distribution. This is the first example of multi-scale 3D X-ray fluorescence imaging. This work begins a new era of study on how nanoparticle-based therapies can be developed to be more predictable and safer for use. Abstract Research in cancer nanotechnology is entering its third decade, and the need to study interactions between nanomaterials and cells remains urgent. Heterogeneity of nanoparticle uptake by different cells and subcellular compartments represent the greatest obstacles to a full understanding of the entire spectrum of nanomaterials’ effects. In this work, we used flow cytometry to evaluate changes in cell cycle associated with non-targeted nanocomposite uptake by individual cells and cell populations. Analogous single cell and cell population changes in nanocomposite uptake were explored by X-ray fluorescence microscopy (XFM). Very few nanoparticles are visible by optical imaging without labeling, but labeling increases nanoparticle complexity and the risk of modified cellular uptake. XFM can be used to evaluate heterogeneity of nanocomposite uptake by directly imaging the metal atoms present in the metal-oxide nanocomposites under investigation. While XFM mapping has been performed iteratively in 2D with the same sample at different resolutions, this study is the first example of serial tomographic imaging at two different resolutions. A cluster of cells exposed to non-targeted nanocomposites was imaged with a micron-sized beam in 3D. Next, the sample was sectioned for immunohistochemistry as well as a high resolution “zoomed in” X-ray fluorescence (XRF) tomography with 80 nm beam spot size. Multiscale XRF tomography will revolutionize our ability to explore cell-to-cell differences in nanomaterial uptake.
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Affiliation(s)
- Si Chen
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; (S.C.); (O.A.); (L.L.); (J.D.); (Y.L.); (C.J.); (S.V.)
| | - Ruben Omar Lastra
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (R.O.L.); (T.P.); (M.B.W.); (J.P.); (Y.L.); (A.D.G.)
| | - Tatjana Paunesku
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (R.O.L.); (T.P.); (M.B.W.); (J.P.); (Y.L.); (A.D.G.)
| | - Olga Antipova
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; (S.C.); (O.A.); (L.L.); (J.D.); (Y.L.); (C.J.); (S.V.)
| | - Luxi Li
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; (S.C.); (O.A.); (L.L.); (J.D.); (Y.L.); (C.J.); (S.V.)
| | - Junjing Deng
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; (S.C.); (O.A.); (L.L.); (J.D.); (Y.L.); (C.J.); (S.V.)
| | - Yanqi Luo
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; (S.C.); (O.A.); (L.L.); (J.D.); (Y.L.); (C.J.); (S.V.)
| | - Michael Beau Wanzer
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (R.O.L.); (T.P.); (M.B.W.); (J.P.); (Y.L.); (A.D.G.)
| | - Jelena Popovic
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (R.O.L.); (T.P.); (M.B.W.); (J.P.); (Y.L.); (A.D.G.)
| | - Ya Li
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (R.O.L.); (T.P.); (M.B.W.); (J.P.); (Y.L.); (A.D.G.)
| | - Alexander D. Glasco
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (R.O.L.); (T.P.); (M.B.W.); (J.P.); (Y.L.); (A.D.G.)
| | - Chris Jacobsen
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; (S.C.); (O.A.); (L.L.); (J.D.); (Y.L.); (C.J.); (S.V.)
- Department of Physics and Astronomy, Weinberg College of Arts and Sciences, Northwestern University, Evanston, IL 60208, USA
| | - Stefan Vogt
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; (S.C.); (O.A.); (L.L.); (J.D.); (Y.L.); (C.J.); (S.V.)
| | - Gayle E. Woloschak
- Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; (R.O.L.); (T.P.); (M.B.W.); (J.P.); (Y.L.); (A.D.G.)
- Correspondence: ; Tel.: +1-312-503-4322
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6
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Hu S, Chen X, Qin X, Dong G, Lin Y, Gai W, Zhao H, Ke B, Li M. A bioluminescent probe for in vivo imaging of pyroglutamate aminopeptidase in a mouse model of inflammation. Bioorg Med Chem Lett 2021; 43:128049. [PMID: 33882272 DOI: 10.1016/j.bmcl.2021.128049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/23/2021] [Accepted: 04/13/2021] [Indexed: 02/05/2023]
Abstract
Pyroglutamate aminopeptidase (PGP) specifically cleaves the peptide bond of pyroglutamic acid linked to the N-terminal end of a polypeptide or protein. Previous studies showed that PGP was associated with several physiological processes and diseases especially those involving inflammation. Utilizing a 'caging' strategy, we designed and synthesized a bioluminescence probe (PBL) with a limit-of-detection of 3.7 * 10-4 mU/mL. In vivo imaging in a mouse model of inflammatory liver disease revealed that the probe has excellent sensitivity and selectivity and provides a powerful tool for studying the physiological and pathological processes involving PGP.
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Affiliation(s)
- Shilong Hu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China; Laboratory of Anaesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xinxin Chen
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China; Laboratory of Anaesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xiaojun Qin
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Gaopan Dong
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Yuxing Lin
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
| | - Wenrui Gai
- Laboratory of Anaesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hanqing Zhao
- Laboratory of Anaesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Bowen Ke
- Laboratory of Anaesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Minyong Li
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (MOE), School of Pharmacy, Shandong University, Jinan, Shandong 250012, China
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7
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Nimmanon T, Ziliotto S, Ogle O, Burt A, Gee JMW, Andrews GK, Kille P, Hogstrand C, Maret W, Taylor KM. The ZIP6/ZIP10 heteromer is essential for the zinc-mediated trigger of mitosis. Cell Mol Life Sci 2020; 78:1781-1798. [PMID: 32797246 PMCID: PMC7904737 DOI: 10.1007/s00018-020-03616-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 07/22/2020] [Accepted: 08/07/2020] [Indexed: 02/08/2023]
Abstract
Zinc has been known to be essential for cell division for over 40 years but the molecular pathways involved remain elusive. Cellular zinc import across biological membranes necessitates the help of zinc transporters such as the SLC39A family of ZIP transporters. We have discovered a molecular process that explains why zinc is required for cell division, involving two highly regulated zinc transporters, as a heteromer of ZIP6 and ZIP10, providing the means of cellular zinc entry at a specific time of the cell cycle that initiates a pathway resulting in the onset of mitosis. Crucially, when the zinc influx across this heteromer is blocked by ZIP6 or ZIP10 specific antibodies, there is no evidence of mitosis, confirming the requirement for zinc influx as a trigger of mitosis. The zinc that influxes into cells to trigger mitosis additionally changes the phosphorylation state of STAT3 converting it from a transcription factor to a protein that complexes with this heteromer and pS38Stathmin, the form allowing microtubule rearrangement as required in mitosis. This discovery now explains the specific cellular role of ZIP6 and ZIP10 and how they have special importance in the mitosis process compared to other ZIP transporter family members. This finding offers new therapeutic opportunities for inhibition of cell division in the many proliferative diseases that exist, such as cancer.
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Affiliation(s)
- Thirayost Nimmanon
- Department of Pathology, Phramongkutklao College of Medicine, 315 Ratchawithi Road, Thung Phayathai, Ratchathewi, Bangkok, 10400, Thailand
| | - Silvia Ziliotto
- Breast Cancer Molecular Pharmacology Group, School of Pharmacy and Pharmaceutical Sciences, Redwood Building, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Olivia Ogle
- Breast Cancer Molecular Pharmacology Group, School of Pharmacy and Pharmaceutical Sciences, Redwood Building, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Anna Burt
- Breast Cancer Molecular Pharmacology Group, School of Pharmacy and Pharmaceutical Sciences, Redwood Building, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Julia M W Gee
- Breast Cancer Molecular Pharmacology Group, School of Pharmacy and Pharmaceutical Sciences, Redwood Building, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Glen K Andrews
- Departments of Biochemistry and Molecular Biology, Kansas City, USA.,Anatomy and Cell Biology, Medical Center, University of Kansas, Kansas City, KS, 66106, USA
| | - Pete Kille
- School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AT, UK
| | - Christer Hogstrand
- Metal Metabolism Group, Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Wolfgang Maret
- Metal Metabolism Group, Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Kathryn M Taylor
- Breast Cancer Molecular Pharmacology Group, School of Pharmacy and Pharmaceutical Sciences, Redwood Building, Cardiff University, King Edward VII Avenue, Cardiff, CF10 3NB, UK.
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8
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Brister EY, Vasi Z, Antipova O, Robinson A, Tan X, Agarwal A, Stock SR, Carriero A, Richter CP. X-ray fluorescence microscopy: A method of measuring ion concentrations in the ear. Hear Res 2020; 391:107948. [PMID: 32283439 DOI: 10.1016/j.heares.2020.107948] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/18/2020] [Accepted: 03/05/2020] [Indexed: 12/31/2022]
Abstract
This technical note describes synchrotron x-ray fluorescence microscopy (XFM) as a method for measuring the concentrations of different elements in cross-sections of the ear at extremely high resolution. This method could be of great importance for addressing many open questions in hearing research. XFM uses synchrotron radiation to evoke emissions from many biologically relevant elements in the tissue. The intensity and wavelength of the emitted radiation provide a fingerprint of the tissue composition that can be used to measure the concentration of the elements in the sampled location. Here, we focus on energies that target biologically-relevant elements of the periodic table between magnesium and zinc. Since a highly focused x-ray beam is used, the spot size is well below 1 μm and the samples can be scanned at a nanometer lateral resolution. This study shows that measurement of the concentrations of different elements is possible in a mid-modiolar cross-section of a mouse cochlea. Images are presented that indicate potassium and chloride "hot spots" in the spiral ligament and the spiral limbus, providing experimental evidence for the potassium recycling pathway and showing the cochlear structures involved. Scans of a section obtained from the incus, one of the middle ear ossicles, in a developing mouse have shown that zinc is not uniformly distributed This supports the hypothesis that zinc plays a special role in the process of ossification. Although limited by sophisticated sample preparation and sectioning, the method provides ample exciting opportunities, to understand the role of genetics and epigenetics on hearing mechanisms in ontogeny and phylogeny.
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Affiliation(s)
- Eileen Y Brister
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States; Department of Speech and Hearing Sciences, Indiana University, Bloomington, IN, United States
| | - Zahra Vasi
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States; Illinois Mathematics and Science Academy, Aurora, IL, United States
| | - Olga Antipova
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, United States
| | - Alan Robinson
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Xiaodong Tan
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Aditi Agarwal
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Stuart R Stock
- Department of Cell and Developmental Biology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Alessandra Carriero
- Department of Biomedical Engineering, The City College of New York, NY, United States
| | - Claus-Peter Richter
- Department of Otolaryngology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States; Department of Biomedical Engineering, Northwestern University, Evanston, IL, United States; The Hugh Knowles Center, Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, United States.
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9
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Gramaccioni C, Yang Y, Pacureanu A, Vigano N, Procopio A, Valenti P, Rosa L, Berlutti F, Bohic S, Cloetens P. Cryo-nanoimaging of Single Human Macrophage Cells: 3D Structural and Chemical Quantification. Anal Chem 2020; 92:4814-4819. [PMID: 32162903 DOI: 10.1021/acs.analchem.9b04096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
X-ray microscopy is increasingly used in biology, but in most cases only in a qualitative way. We present here a 3D correlative cryo X-ray microscopy approach suited for the quantification of molar concentrations and structure in native samples at nanometer scale. The multimodal approach combines X-ray fluorescence and X-ray holographic nanotomography on "thick" frozen-hydrated cells. The quantitativeness of the X-ray fluorescence reconstruction is improved by estimating the self-attenuation from the 3D holography reconstruction. Applied to complex macrophage cells, we extract the quantification of major and minor elements heavier than phosphorus, as well as the density, in the different organelles. The intracellular landscape shows remarkable elemental differences. This novel analytical microscopy approach will be of particular interest to investigate complex biological and chemical systems in their native environment.
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Affiliation(s)
- Chiara Gramaccioni
- University of Calabria, Department of Physics, 87036 Arcavata di Rende, Italy
| | - Yang Yang
- ESRF, The European Synchrotron, 38043 Grenoble, France
| | | | - Nicola Vigano
- ESRF, The European Synchrotron, 38043 Grenoble, France
| | - Alessandra Procopio
- University of Bologna, Department of Pharmacy and biotechnology, 40127 Bologna Italy
| | - Piera Valenti
- University of Sapienza Roma, Department of Public Health and Infectious Diseases, 00185 Roma Italy
| | - Luigi Rosa
- University of Sapienza Roma, Department of Public Health and Infectious Diseases, 00185 Roma Italy
| | - Francesca Berlutti
- University of Sapienza Roma, Department of Public Health and Infectious Diseases, 00185 Roma Italy
| | - Sylvain Bohic
- ESRF, The European Synchrotron, 38043 Grenoble, France.,Universite Grenoble Alpes, INSERM, UA7, Synchrotron Radiation for Biomedicine, 38043 Grenoble, France
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10
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Weng N, Jiang H, Wang WX. Novel Insights into the Role of Copper in Critical Life Stages of Oysters Revealed by High-Resolution NanoSIMS Imaging. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:14724-14733. [PMID: 31742394 DOI: 10.1021/acs.est.9b05877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Copper (Cu) is a key trace element for many biological processes, but there is little available information regarding its requirements and functions in critical life stages of marine bivalves, during which dramatic morphological and physiological changes occur. In this study, the ontogeny pattern of Cu accumulation across the life history of oysters was explored for the first time and the distributions of Cu in oysters at critical life stages (pediveliger and early settled spat) were in situ mapped by nanoscale secondary ion mass spectrometry (NanoSIMS) with high lateral resolution. We first demonstrated that the late pelagic stage to early settled stage was the critical stage requiring Cu during oyster development. NanoSIMS imaging revealed a significant elevation of intercellular Cu levels along with mitochondrial calcium overload and obvious structural degradation of mitochondria in velar cells at the pediveliger stage, implying the possible role of Cu in cell apoptosis of the velum during larval metamorphosis. Furthermore, an obvious enrichment of Cu together with calcium was observed in the nucleus and mitochondria of ciliated cells of gill tissue at the early settled stage. Their accumulation in the gill cells was significantly higher than that in the juveniles, indicating the potential role of Cu in sustaining the fast growth of the gill filament and the concomitant acceleration of energy metabolism during early benthic development. Our findings offer new insights into the understanding of the interactions between trace metals and marine bivalves.
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Affiliation(s)
- Nanyan Weng
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources , HKUST Shenzhen Research Institute , Shenzhen 518057 , China
- Department of Ocean Science and Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) , The Hong Kong University of Science and Technology (HKUST) , Clearwater Bay, Kowloon 999077 , Hong Kong
| | | | - Wen-Xiong Wang
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources , HKUST Shenzhen Research Institute , Shenzhen 518057 , China
- Department of Ocean Science and Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) , The Hong Kong University of Science and Technology (HKUST) , Clearwater Bay, Kowloon 999077 , Hong Kong
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11
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Yang Z, Loh KY, Chu YT, Feng R, Satyavolu NSR, Xiong M, Nakamata Huynh SM, Hwang K, Li L, Xing H, Zhang X, Chemla YR, Gruebele M, Lu Y. Optical Control of Metal Ion Probes in Cells and Zebrafish Using Highly Selective DNAzymes Conjugated to Upconversion Nanoparticles. J Am Chem Soc 2018; 140:17656-17665. [PMID: 30427666 DOI: 10.1021/jacs.8b09867] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Spatial and temporal distributions of metal ions in vitro and in vivo are crucial in our understanding of the roles of metal ions in biological systems, and yet there is a very limited number of methods to probe metal ions with high space and time resolution, especially in vivo. To overcome this limitation, we report a Zn2+-specific near-infrared (NIR) DNAzyme nanoprobe for real-time metal ion tracking with spatiotemporal control in early embryos and larvae of zebrafish. By conjugating photocaged DNAzymes onto lanthanide-doped upconversion nanoparticles (UCNPs), we have achieved upconversion of a deep tissue penetrating NIR 980 nm light into 365 nm emission. The UV photon then efficiently photodecages a substrate strand containing a nitrobenzyl group at the 2'-OH of adenosine ribonucleotide, allowing enzymatic cleavage by a complementary DNA strand containing a Zn2+-selective DNAzyme. The product containing a visible FAM fluorophore that is initially quenched by BHQ1 and Dabcyl quenchers is released after cleavage, resulting in higher fluorescent signals. The DNAzyme-UCNP probe enables Zn2+ sensing by exciting in the NIR biological imaging window in both living cells and zebrafish embryos and detecting in the visible region. In this study, we introduce a platform that can be used to understand the Zn2+ distribution with spatiotemporal control, thereby giving insights into the dynamical Zn2+ ion distribution in intracellular and in vivo models.
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Affiliation(s)
| | | | | | | | | | - Mengyi Xiong
- Institute of Chemical Biology and Nanomedicine, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
| | | | | | - Lele Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
| | - Hang Xing
- Institute of Chemical Biology and Nanomedicine, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Xiaobing Zhang
- Institute of Chemical Biology and Nanomedicine, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China
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12
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Maret W. Metallomics: The Science of Biometals and Biometalloids. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1055:1-20. [PMID: 29884959 DOI: 10.1007/978-3-319-90143-5_1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Metallomics, a discipline integrating sciences that address the biometals and biometalloids, provides new opportunities for discoveries. As part of a systems biology approach, it draws attention to the importance of many chemical elements in biochemistry. Traditionally, biochemistry has treated life as organic chemistry, separating it from inorganic chemistry, considered a field reserved for investigating the inanimate world. However, inorganic chemistry is part of the chemistry of life, and metallomics contributes by showing the importance of a neglected fifth branch of building blocks in biochemistry. Metallomics adds chemical elements/metals to the four building blocks of biomolecules and the fields of their studies: carbohydrates (glycome), lipids (lipidome), proteins (proteome), and nucleotides (genome). The realization that non-essential elements are present in organisms in addition to essential elements represents a certain paradigm shift in our thinking, as it stipulates inquiries into the functional implications of virtually all the natural elements. This article discusses opportunities arising from metallomics for a better understanding of human biology and health. It looks at a biological periodic system of the elements as a sum of metallomes and focuses on the major roles of metals in about 30-40% of all proteins, the metalloproteomes. It emphasizes the importance of zinc and iron biology and discusses why it is important to investigate non-essential metal ions, what bioinformatics approaches can contribute to understanding metalloproteins, and why metallomics has a bright future in the many dimensions it covers.
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Affiliation(s)
- Wolfgang Maret
- Metal Metabolism Group, Departments of Biochemistry and Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
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13
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Tejeda-Guzmán C, Rosas-Arellano A, Kroll T, Webb SM, Barajas-Aceves M, Osorio B, Missirlis F. Biogenesis of zinc storage granules in Drosophila melanogaster. J Exp Biol 2018; 221:jeb168419. [PMID: 29367274 PMCID: PMC5897703 DOI: 10.1242/jeb.168419] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 01/17/2018] [Indexed: 12/16/2022]
Abstract
Membrane transporters and sequestration mechanisms concentrate metal ions differentially into discrete subcellular microenvironments for use in protein cofactors, signalling, storage or excretion. Here we identify zinc storage granules as the insect's major zinc reservoir in principal Malpighian tubule epithelial cells of Drosophila melanogaster The concerted action of Adaptor Protein-3, Rab32, HOPS and BLOC complexes as well as of the white-scarlet (ABCG2-like) and ZnT35C (ZnT2/ZnT3/ZnT8-like) transporters is required for zinc storage granule biogenesis. Due to lysosome-related organelle defects caused by mutations in the homologous human genes, patients with Hermansky-Pudlak syndrome may lack zinc granules in beta pancreatic cells, intestinal paneth cells and presynaptic vesicles of hippocampal mossy fibers.
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Affiliation(s)
- Carlos Tejeda-Guzmán
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, C.P. 07360, México
| | - Abraham Rosas-Arellano
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, C.P. 07360, México
| | - Thomas Kroll
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, USA
| | - Samuel M Webb
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, USA
| | - Martha Barajas-Aceves
- Departamento de Biotecnología y Bioingeniería, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, C.P. 07360, México
| | - Beatriz Osorio
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, C.P. 07360, México
| | - Fanis Missirlis
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, C.P. 07360, México
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14
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Ogunleke A, Recur B, Balacey H, Chen HH, Delugin M, Hwu Y, Javerzat S, Petibois C. 3D chemical imaging of the brain using quantitative IR spectro-microscopy. Chem Sci 2018; 9:189-198. [PMID: 29629087 PMCID: PMC5869290 DOI: 10.1039/c7sc03306k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 10/13/2017] [Indexed: 01/14/2023] Open
Abstract
Three-dimensional (3D) histology is the next frontier for modern anatomo-pathology. Characterizing abnormal parameters in a tissue is essential to understand the rationale of pathology development. However, there is no analytical technique, in vivo or histological, that is able to discover such abnormal features and provide a 3D distribution at microscopic resolution. Here, we introduce a unique high-throughput infrared (IR) microscopy method that combines automated image correction and subsequent spectral data analysis for 3D-IR image reconstruction. We performed spectral analysis of a complete organ for a small animal model, a mouse brain with an implanted glioma tumor. The 3D-IR image is reconstructed from 370 consecutive tissue sections and corrected using the X-ray tomogram of the organ for an accurate quantitative analysis of the chemical content. A 3D matrix of 89 × 106 IR spectra is generated, allowing us to separate the tumor mass from healthy brain tissues based on various anatomical, chemical, and metabolic parameters. We demonstrate that quantitative metabolic parameters can be extracted from the IR spectra for the characterization of the brain vs. tumor metabolism (assessing the Warburg effect in tumors). Our method can be further exploited by searching for the whole spectral profile, discriminating tumor vs. healthy tissue in a non-supervised manner, which we call 'spectromics'.
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Affiliation(s)
- Abiodun Ogunleke
- University of Bordeaux , Inserm U1029 LAMC , Allée Geoffroy Saint-Hilaire Bat. B2, F33600 Pessac , France . ;
| | - Benoit Recur
- University of Bordeaux , Inserm U1029 LAMC , Allée Geoffroy Saint-Hilaire Bat. B2, F33600 Pessac , France . ;
| | - Hugo Balacey
- University of Bordeaux , Inserm U1029 LAMC , Allée Geoffroy Saint-Hilaire Bat. B2, F33600 Pessac , France . ;
| | - Hsiang-Hsin Chen
- Academia Sinica , Institute of Physics , 128 Sec. 2, Academia Rd., Nankang , Taipei 11529 , Taiwan , Republic of China
| | - Maylis Delugin
- University of Bordeaux , Inserm U1029 LAMC , Allée Geoffroy Saint-Hilaire Bat. B2, F33600 Pessac , France . ;
| | - Yeukuang Hwu
- Academia Sinica , Institute of Physics , 128 Sec. 2, Academia Rd., Nankang , Taipei 11529 , Taiwan , Republic of China
| | - Sophie Javerzat
- University of Bordeaux , Inserm U1029 LAMC , Allée Geoffroy Saint-Hilaire Bat. B2, F33600 Pessac , France . ;
| | - Cyril Petibois
- University of Bordeaux , Inserm U1029 LAMC , Allée Geoffroy Saint-Hilaire Bat. B2, F33600 Pessac , France . ;
- Academia Sinica , Institute of Physics , 128 Sec. 2, Academia Rd., Nankang , Taipei 11529 , Taiwan , Republic of China
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15
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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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16
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3D Quantitative Chemical Imaging of Tissues by Spectromics. Trends Biotechnol 2017; 35:1194-1207. [DOI: 10.1016/j.tibtech.2017.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 07/31/2017] [Accepted: 08/04/2017] [Indexed: 12/14/2022]
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17
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Bourassa D, Gleber SC, Vogt S, Shin CH, Fahrni CJ. MicroXRF tomographic visualization of zinc and iron in the zebrafish embryo at the onset of the hatching period. Metallomics 2017; 8:1122-1130. [PMID: 27531414 DOI: 10.1039/c6mt00073h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Transition metals such as zinc, copper, and iron play key roles in cellular proliferation, cell differentiation, growth, and development. Over the past decade, advances in synchrotron X-ray fluorescence instrumentation presented new opportunities for the three-dimensional mapping of trace metal distributions within intact specimens. Taking advantage of microXRF tomography, we visualized the 3D distribution of zinc and iron in a zebrafish embryo at the onset of the hatching period. The reconstructed volumetric data revealed distinct differences in the elemental distributions, with zinc predominantly localized to the yolk and yolk extension, and iron to various regions of the brain as well as the myotome extending along the dorsal side of the embryo. The data set complements an earlier tomographic study of an embryo at the pharyngula stage (24 hpf), thus offering new insights into the trace metal distribution at key stages of embryonic development.
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Affiliation(s)
- Daisy Bourassa
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332, USA.
| | - Sophie-Charlotte Gleber
- Advanced Photon Source, X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Stefan Vogt
- Advanced Photon Source, X-ray Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Chong Hyun Shin
- School of Biological Sciences and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive, Atlanta, GA 30332, USA
| | - Christoph J Fahrni
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332, USA.
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18
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Thomason RT, Pettiglio MA, Herrera C, Kao C, Gitlin JD, Bartnikas TB. Characterization of trace metal content in the developing zebrafish embryo. PLoS One 2017; 12:e0179318. [PMID: 28617866 PMCID: PMC5472288 DOI: 10.1371/journal.pone.0179318] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 05/26/2017] [Indexed: 11/18/2022] Open
Abstract
Trace metals are essential for health but toxic when present in excess. The maintenance of trace metals at physiologic levels reflects both import and export by cells and absorption and excretion by organs. The mechanism by which this maintenance is achieved in vertebrate organisms is incompletely understood. To explore this, we chose zebrafish as our model organism, as they are amenable to both pharmacologic and genetic manipulation and comprise an ideal system for genetic screens and toxicological studies. To characterize trace metal content in developing zebrafish, we measured levels of three trace elements, copper, zinc, and manganese, from the oocyte stage to 30 days post-fertilization using inductively coupled plasma mass spectrometry. Our results indicate that metal levels are stable until zebrafish can acquire metals from the environment and imply that the early embryo relies on maternal contribution of metals to the oocyte. We also measured metal levels in bodies and yolks of embryos reared in presence and absence of the copper chelator neocuproine. All three metals exhibited different relative abundances between yolks and bodies of embryos. While neocuproine treatment led to an expected phenotype of copper deficiency, total copper levels were unaffected, indicating that measurement of total metal levels does not equate with measurement of biologically active metal levels. Overall, our data not only can be used in the design and execution of genetic, physiologic, and toxicologic studies but also has implications for the understanding of vertebrate metal homeostasis.
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Affiliation(s)
| | - Michael A. Pettiglio
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island, United States of America
| | - Carolina Herrera
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island, United States of America
| | - Clara Kao
- Eugene Bell Center, Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America
| | - Jonathan D. Gitlin
- Eugene Bell Center, Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America
| | - Thomas B. Bartnikas
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island, United States of America
- * E-mail:
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19
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Bobroff V, Chen HH, Delugin M, Javerzat S, Petibois C. Quantitative IR microscopy and spectromics open the way to 3D digital pathology. JOURNAL OF BIOPHOTONICS 2017; 10:598-606. [PMID: 27248698 DOI: 10.1002/jbio.201600051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/27/2016] [Accepted: 04/27/2016] [Indexed: 06/05/2023]
Abstract
Currently, only mass-spectrometry (MS) microscopy brings a quantitative analysis of chemical contents of tissue samples in 3D. Here, the reconstruction of a 3D quantitative chemical images of a biological tissue by FTIR spectro-microscopy is reported. An automated curve-fitting method is developed to extract all intense absorption bands constituting IR spectra. This innovation benefits from three critical features: (1) the correction of raw IR spectra to make them quantitatively comparable; (2) the automated and iterative data treatment allowing to transfer the IR-absorption spectrum into a IR-band spectrum; (3) the reconstruction of an 3D IR-band matrix (x, y, z for voxel position and a 4th dimension with all IR-band parameters). Spectromics, which is a new method for exploiting spectral data for tissue metadata reconstruction, is proposed to further translate the related chemical information in 3D, as biochemical and anatomical tissue parameters. An example is given with oxidative stress distribution and the reconstruction of blood vessels in tissues. The requirements of IR microscopy instrumentation to propose 3D digital histology as a clinical routine technology is briefly discussed.
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Affiliation(s)
- Vladimir Bobroff
- University of Bordeaux, Inserm U1029 LAMC, Allée Geoffroy Saint Hillaire, Bat B2, F33600, Pessac, France
| | - Hsiang-Hsin Chen
- University of Bordeaux, Inserm U1029 LAMC, Allée Geoffroy Saint Hillaire, Bat B2, F33600, Pessac, France
| | - Maylis Delugin
- University of Bordeaux, Inserm U1029 LAMC, Allée Geoffroy Saint Hillaire, Bat B2, F33600, Pessac, France
| | - Sophie Javerzat
- University of Bordeaux, Inserm U1029 LAMC, Allée Geoffroy Saint Hillaire, Bat B2, F33600, Pessac, France
| | - Cyril Petibois
- University of Bordeaux, Inserm U1029 LAMC, Allée Geoffroy Saint Hillaire, Bat B2, F33600, Pessac, France
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20
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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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21
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Heffern MC, Park HM, Au-Yeung HY, Van de Bittner GC, Ackerman CM, Stahl A, Chang CJ. In vivo bioluminescence imaging reveals copper deficiency in a murine model of nonalcoholic fatty liver disease. Proc Natl Acad Sci U S A 2016; 113:14219-14224. [PMID: 27911810 PMCID: PMC5167165 DOI: 10.1073/pnas.1613628113] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Copper is a required metal nutrient for life, but global or local alterations in its homeostasis are linked to diseases spanning genetic and metabolic disorders to cancer and neurodegeneration. Technologies that enable longitudinal in vivo monitoring of dynamic copper pools can help meet the need to study the complex interplay between copper status, health, and disease in the same living organism over time. Here, we present the synthesis, characterization, and in vivo imaging applications of Copper-Caged Luciferin-1 (CCL-1), a bioluminescent reporter for tissue-specific copper visualization in living animals. CCL-1 uses a selective copper(I)-dependent oxidative cleavage reaction to release d-luciferin for subsequent bioluminescent reaction with firefly luciferase. The probe can detect physiological changes in labile Cu+ levels in live cells and mice under situations of copper deficiency or overload. Application of CCL-1 to mice with liver-specific luciferase expression in a diet-induced model of nonalcoholic fatty liver disease reveals onset of hepatic copper deficiency and altered expression levels of central copper trafficking proteins that accompany symptoms of glucose intolerance and weight gain. The data connect copper dysregulation to metabolic liver disease and provide a starting point for expanding the toolbox of reactivity-based chemical reporters for cell- and tissue-specific in vivo imaging.
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Affiliation(s)
- Marie C Heffern
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - Hyo Min Park
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720
| | - Ho Yu Au-Yeung
- Department of Chemistry, University of California, Berkeley, CA 94720
| | | | - Cheri M Ackerman
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - Andreas Stahl
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720;
| | - Christopher J Chang
- Department of Chemistry, University of California, Berkeley, CA 94720;
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720
- Howard Hughes Medical Institute, University of California, Berkeley, CA 94720
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22
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3D Imaging of Nanoparticle Distribution in Biological Tissue by Laser-Induced Breakdown Spectroscopy. Sci Rep 2016; 6:29936. [PMID: 27435424 PMCID: PMC4951682 DOI: 10.1038/srep29936] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 06/27/2016] [Indexed: 02/06/2023] Open
Abstract
Nanomaterials represent a rapidly expanding area of research with huge potential for future medical applications. Nanotechnology indeed promises to revolutionize diagnostics, drug delivery, gene therapy, and many other areas of research. For any biological investigation involving nanomaterials, it is crucial to study the behavior of such nano-objects within tissues to evaluate both their efficacy and their toxicity. Here, we provide the first account of 3D label-free nanoparticle imaging at the entire-organ scale. The technology used is known as laser-induced breakdown spectroscopy (LIBS) and possesses several advantages such as speed of operation, ease of use and full compatibility with optical microscopy. We then used two different but complementary approaches to achieve 3D elemental imaging with LIBS: a volume reconstruction of a sliced organ and in-depth analysis. This proof-of-concept study demonstrates the quantitative imaging of both endogenous and exogenous elements within entire organs and paves the way for innumerable applications.
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23
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Pereira TCB, Campos MM, Bogo MR. Copper toxicology, oxidative stress and inflammation using zebrafish as experimental model. J Appl Toxicol 2016; 36:876-85. [PMID: 26888422 DOI: 10.1002/jat.3303] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 12/17/2015] [Accepted: 01/12/2016] [Indexed: 12/26/2022]
Abstract
Copper is an essential micronutrient and a key catalytic cofactor in a wide range of enzymes. As a trace element, copper levels are tightly regulated and both its deficit and excess are deleterious to the organism. Under inflammatory conditions, serum copper levels are increased and trigger oxidative stress responses that activate inflammatory responses. Interestingly, copper dyshomeostasis, oxidative stress and inflammation are commonly present in several chronic diseases. Copper exposure can be easily modeled in zebrafish; a consolidated model in toxicology with increasing interest in immunity-related research. As a result of developmental, economical and genetic advantages, this freshwater teleost is uniquely suitable for chemical and genetic large-scale screenings, representing a powerful experimental tool for a whole-organism approach, mechanistic studies, disease modeling and beyond. Copper toxicological and more recently pro-inflammatory effects have been investigated in both larval and adult zebrafish with breakthrough findings. Here, we provide an overview of copper metabolism in health and disease and its effects on oxidative stress and inflammation responses in zebrafish models. Copper-induced inflammation is highlighted owing to its potential to easily mimic pro-oxidative and pro-inflammatory features that combined with zebrafish genetic tractability could help further in the understanding of copper metabolism, inflammatory responses and related diseases. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Talita Carneiro Brandão Pereira
- Programa de Pós-Graduação em Medicina e Ciências da Saúde, PUCRS, Porto Alegre, Brasil.,Laboratório de Biologia Genômica e Molecular, PUCRS, Porto Alegre, Brasil
| | - Maria Martha Campos
- Programa de Pós-Graduação em Medicina e Ciências da Saúde, PUCRS, Porto Alegre, Brasil.,Instituto de Toxicologia e Farmacologia, PUCRS, Porto Alegre, Brasil.,Programa de Pós-Graduação em Odontologia, PUCRS, Porto Alegre, Brasil
| | - Maurício Reis Bogo
- Programa de Pós-Graduação em Medicina e Ciências da Saúde, PUCRS, Porto Alegre, Brasil.,Laboratório de Biologia Genômica e Molecular, PUCRS, Porto Alegre, Brasil.,Instituto de Toxicologia e Farmacologia, PUCRS, Porto Alegre, Brasil.,Programa de Pós-Graduação em Biologia Celular e Molecular, PUCRS, Porto Alegre, Brasil
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Price SWT, Geraki K, Ignatyev K, Witte PT, Beale AM, Mosselmans JFW. In Situ Microfocus Chemical Computed Tomography of the Composition of a Single Catalyst Particle During Hydrogenation of Nitrobenzene in the Liquid Phase. Angew Chem Int Ed Engl 2015; 54:9886-9. [PMID: 26140613 PMCID: PMC4600245 DOI: 10.1002/anie.201504227] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Indexed: 11/24/2022]
Abstract
Heterogeneous catalysis performed in the liquid phase is an important type of catalytic process which is rarely studied in situ. Using microfocus X-ray fluorescence and X-ray diffraction computed tomography (μ-XRF-CT, μ-XRD-CT) in combination with X-ray absorption near-edge spectroscopy (XANES), we have determined the active state of a Mo-promoted Pt/C catalyst (NanoSelect) for the liquid-phase hydrogenation of nitrobenzene under standard operating conditions. First, μ-XRF-CT and μ-XRD-CT reveal the active state of Pt catalyst to be reduced, noncrystalline, and evenly dispersed across the support surface. Second, imaging of the Pt and Mo distribution reveals they are highly stable on the support and not prone to leaching during the reaction. This study demonstrates the ability of chemical computed tomography to image the nature and spatial distribution of catalysts under reaction conditions.
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Affiliation(s)
- Stephen W T Price
- Science Division, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0DE (UK).
| | - Kalotina Geraki
- Science Division, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0DE (UK)
| | - Konstantin Ignatyev
- Science Division, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0DE (UK)
| | - Peter T Witte
- Catalysis Research GCC/PB, BASF Nederland B.V. Strijkviertel 67, 3454 ZG, De Meern (The Netherlands)
| | - Andrew M Beale
- UK Catalysis Hub, Research Complex at Harwell, Harwell Science and Innovation Campus, Harwell, Didcot, Oxon, OX11 0FA (UK). .,University College London, Department of Chemistry, 20 Gordon Street, London, WC1H 0AJ (UK).
| | - J Fred W Mosselmans
- Science Division, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxon, OX11 0DE (UK)
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Price SWT, Geraki K, Ignatyev K, Witte PT, Beale AM, Mosselmans JFW. In Situ Microfocus Chemical Computed Tomography of the Composition of a Single Catalyst Particle During Hydrogenation of Nitrobenzene in the Liquid Phase. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504227] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Atwood RC, Bodey AJ, Price SWT, Basham M, Drakopoulos M. A high-throughput system for high-quality tomographic reconstruction of large datasets at Diamond Light Source. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2015; 373:rsta.2014.0398. [PMID: 25939626 PMCID: PMC4424489 DOI: 10.1098/rsta.2014.0398] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Tomographic datasets collected at synchrotrons are becoming very large and complex, and, therefore, need to be managed efficiently. Raw images may have high pixel counts, and each pixel can be multidimensional and associated with additional data such as those derived from spectroscopy. In time-resolved studies, hundreds of tomographic datasets can be collected in sequence, yielding terabytes of data. Users of tomographic beamlines are drawn from various scientific disciplines, and many are keen to use tomographic reconstruction software that does not require a deep understanding of reconstruction principles. We have developed Savu, a reconstruction pipeline that enables users to rapidly reconstruct data to consistently create high-quality results. Savu is designed to work in an 'orthogonal' fashion, meaning that data can be converted between projection and sinogram space throughout the processing workflow as required. The Savu pipeline is modular and allows processing strategies to be optimized for users' purposes. In addition to the reconstruction algorithms themselves, it can include modules for identification of experimental problems, artefact correction, general image processing and data quality assessment. Savu is open source, open licensed and 'facility-independent': it can run on standard cluster infrastructure at any institution.
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Affiliation(s)
- Robert C Atwood
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0QX, UK
| | - Andrew J Bodey
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0QX, UK
| | - Stephen W T Price
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0QX, UK
| | - Mark Basham
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0QX, UK
| | - Michael Drakopoulos
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0QX, UK
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Ahmad M, Bazalova-Carter M, Fahrig R, Xing L. Optimized Detector Angular Configuration Increases the Sensitivity of X-ray Fluorescence Computed Tomography (XFCT). IEEE TRANSACTIONS ON MEDICAL IMAGING 2015; 34:1140-1147. [PMID: 25474808 DOI: 10.1109/tmi.2014.2376813] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this work, we demonstrated that an optimized detector angular configuration based on the anisotropic energy distribution of background scattered X-rays improves X-ray fluorescence computed tomography (XFCT) detection sensitivity. We built an XFCT imaging system composed of a bench-top fluoroscopy X-ray source, a CdTe X-ray detector, and a phantom motion stage. We imaged a 6.4-cm-diameter phantom containing different concentrations of gold solution and investigated the effect of detector angular configuration on XFCT image quality. Based on our previous theoretical study, three detector angles were considered. The X-ray fluorescence detector was first placed at 145 (°) (approximating back-scatter) to minimize scatter X-rays. XFCT image quality was compared to images acquired with the detector at 60 (°) (forward-scatter) and 90 (°) (side-scatter). The datasets for the three different detector positions were also combined to approximate an isotropically arranged detector. The sensitivity was optimized with detector in the 145 (°) back-scatter configuration counting the 78-keV gold Kβ1 X-rays. The improvement arose from the reduced energy of scattered X-ray at the 145 (°) position and the large energy separation from gold K β1 X-rays. The lowest detected concentration in this configuration was 2.5 mgAu/mL (or 0.25% Au with SNR = 4.3). This concentration could not be detected with the 60 (°) , 90 (°) , or isotropic configurations (SNRs = 1.3, 0, 2.3, respectively). XFCT imaging dose of 14 mGy was in the range of typical clinical X-ray CT imaging doses. To our knowledge, the sensitivity achieved in this experiment is the highest in any XFCT experiment using an ordinary bench-top X-ray source in a phantom larger than a mouse ( > 3 cm).
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Cotruvo JA, Aron AT, Ramos-Torres KM, Chang CJ. Synthetic fluorescent probes for studying copper in biological systems. Chem Soc Rev 2015; 44:4400-14. [PMID: 25692243 DOI: 10.1039/c4cs00346b] [Citation(s) in RCA: 352] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The potent redox activity of copper is required for sustaining life. Mismanagement of its cellular pools, however, can result in oxidative stress and damage connected to aging, neurodegenerative diseases, and metabolic disorders. Therefore, copper homeostasis is tightly regulated by cells and tissues. Whereas copper and other transition metal ions are commonly thought of as static cofactors buried within protein active sites, emerging data points to the presence of additional loosely bound, labile pools that can participate in dynamic signalling pathways. Against this backdrop, we review advances in sensing labile copper pools and understanding their functions using synthetic fluorescent indicators. Following brief introductions to cellular copper homeostasis and considerations in sensor design, we survey available fluorescent copper probes and evaluate their properties in the context of their utility as effective biological screening tools. We emphasize the need for combined chemical and biological evaluation of these reagents, as well as the value of complementing probe data with other techniques for characterizing the different pools of metal ions in biological systems. This holistic approach will maximize the exciting opportunities for these and related chemical technologies in the study and discovery of novel biology of metals.
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Affiliation(s)
- Joseph A Cotruvo
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
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Egan CK, Jacques SDM, Wilson MD, Veale MC, Seller P, Withers PJ, Cernik RJ. Full-field energy-dispersive powder diffraction imaging using laboratory X-rays. J Appl Crystallogr 2015. [DOI: 10.1107/s1600576715000801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A laboratory instrument with the ability to spatially resolve energy-dispersed X-ray powder diffraction patterns taken in a single snapshot has been developed. The experimental arrangement is based on a pinhole camera coupled with a pixelated spectral X-ray detector. Collimation of the diffracted beam is defined by the area of the footprint of a detector pixel and the diameter of the pinhole aperture. Each pixel in the image, therefore, contains an energy-dispersed powder diffraction pattern. This new X-ray imaging technique enables spatial mapping of crystallinity, crystalline texture or crystalline phases from within a sample. Validation of the method has been carried out with a back-to-back comparison with crystalline texture mapping local to a friction stir weld in an aluminium alloy taken using synchrotron radiation.
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Hare DJ, New EJ, de Jonge MD, McColl G. Imaging metals in biology: balancing sensitivity, selectivity and spatial resolution. Chem Soc Rev 2015; 44:5941-58. [DOI: 10.1039/c5cs00055f] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A Tutorial Review to aid in designing the most comprehensive metal imaging experiments for biological samples.
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Affiliation(s)
- Dominic J. Hare
- Elemental Bio-imaging Facility
- University of Technology Sydney
- Broadway
- Australia
- The Florey Institute of Neuroscience and Mental Health
| | | | | | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
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Gürsoy D, De Carlo F, Xiao X, Jacobsen C. TomoPy: a framework for the analysis of synchrotron tomographic data. JOURNAL OF SYNCHROTRON RADIATION 2014. [PMID: 25178011 DOI: 10.1117/12.2061373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Analysis of tomographic datasets at synchrotron light sources (including X-ray transmission tomography, X-ray fluorescence microscopy and X-ray diffraction tomography) is becoming progressively more challenging due to the increasing data acquisition rates that new technologies in X-ray sources and detectors enable. The next generation of synchrotron facilities that are currently under design or construction throughout the world will provide diffraction-limited X-ray sources and are expected to boost the current data rates by several orders of magnitude, stressing the need for the development and integration of efficient analysis tools. Here an attempt to provide a collaborative framework for the analysis of synchrotron tomographic data that has the potential to unify the effort of different facilities and beamlines performing similar tasks is described in detail. The proposed Python-based framework is open-source, platform- and data-format-independent, has multiprocessing capability and supports procedural programming that many researchers prefer. This collaborative platform could affect all major synchrotron facilities where new effort is now dedicated to developing new tools that can be deployed at the facility for real-time processing, as well as distributed to users for off-site data processing.
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Affiliation(s)
- Dogˇa Gürsoy
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439-4837, USA
| | - Francesco De Carlo
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439-4837, USA
| | - Xianghui Xiao
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439-4837, USA
| | - Chris Jacobsen
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439-4837, USA
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