1
|
Jha A, Barsola B, Pathania D, Sonu, Raizada P, Thakur P, Singh P, Rustagi S, Khosla A, Chaudhary V. Nano-biogenic heavy metals adsorptive remediation for enhanced soil health and sustainable agricultural production. ENVIRONMENTAL RESEARCH 2024; 252:118926. [PMID: 38657848 DOI: 10.1016/j.envres.2024.118926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/26/2024]
Abstract
Hazardous heavy metal (HM) pollution constitutes a pervasive global challenge, posing substantial risks to ecosystems and human health. The exigency for expeditious detection, meticulous monitoring, and efficacious remediation of HM within ecosystems is indisputable. Soil contamination, stemming from a myriad of anthropogenic activities, emerges as a principal conduit for HM ingress into the food chain. Traditional soil remediation modalities for HM elimination, while effective are labor-intensive, susceptible to secondary contamination, and exhibit limited efficacy in regions characterized by low metal toxicity. In response to these exigencies, the eco-friendly paradigm of bioremediation has garnered prominence as a financially judicious and sustainable remedial strategy. This approach entails the utilization of hyperaccumulators, Genetically Modified Microorganisms (GMM), and advantageous microbes. The current review offers a comprehensive elucidation of cutting-edge phyto/microbe-based bioremediation techniques, with a specific emphasis on their amalgamation with nanotechnology. Accentuating their pivotal role in advancing sustainable agricultural practices, the review meticulously dissects the synergistic interplay between plants and microbes, underscoring their adeptness in HM remediation sans secondary contamination. Moreover, the review scrutinizes the challenges intrinsic to implementing bioremediation-nanotechnology interface techniques and propounds innovative resolutions. These discernments proffer auspicious trajectories for the future of agriculture. Through the environmentally conscientious marvels of phyto/microbe bioremediation, an optimistic outlook emerges for environmental preservation and the cultivation of a sustainable, salubrious planet via the conduit of cleaner agricultural production.
Collapse
Affiliation(s)
- Ayush Jha
- University Institute of Biotechnology, Chandigarh University, Gharuan, Punjab, 140413, India
| | - Bindiya Barsola
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Diksha Pathania
- Department of Biosciences and Technology, MMEC, Maharishi Markandeshwar University, Mullana (Ambala), Haryana,133203, India
| | - Sonu
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India.
| | - Pankaj Raizada
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Pankaj Thakur
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Pardeep Singh
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Sarvesh Rustagi
- School of Applied and Life Sciences, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Ajit Khosla
- Department of Applied Chemistry, School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, 710126, PR China.
| | - Vishal Chaudhary
- Physics Department, Bhagini Nivedita College, University of Delhi, Delhi, India; Centre for Research Impact & Outcome, Chitkara University, Punjab, 140401, India.
| |
Collapse
|
2
|
Ciupa A. Novel pyrazoline and pyrazole "turn on" fluorescent sensors selective for Zn 2+/Cd 2+ at λem 480 nm and Fe 3+/Fe 2+ at λem 465 nm in MeCN. RSC Adv 2024; 14:3519-3524. [PMID: 38259996 PMCID: PMC10802262 DOI: 10.1039/d4ra00036f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
A small series of simple pyrazoline and pyrazole based sensors, all derived from the same chalcone precursors, were synthesised, characterised and screened for their fluorescence "turn on" properties in the presence of multiple metals. Pyrazole 8 displayed an excellent fluorescence profile with approx. 20× fold increase in λem 480 nm with Zn2+ compared to a 2.5× fold increase with Cd2+. Pyrazole 9 displayed a 30× fold increase at λem 465 nm for Fe3+ compared to Fe2+ with a Fe3+ limit of detection of 0.025 μM. The corresponding pyrazolines displayed contrasting properties with important implications for future pyrazoline and pyrazole sensor design.
Collapse
Affiliation(s)
- Alexander Ciupa
- Materials Innovation Factory, University of Liverpool 51 Oxford Street Liverpool L7 3NY UK
| |
Collapse
|
3
|
Hu Y, Liu B. The Copper Efflux Regulator (CueR). Subcell Biochem 2024; 104:17-31. [PMID: 38963481 DOI: 10.1007/978-3-031-58843-3_2] [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] [Indexed: 07/05/2024]
Abstract
The copper efflux regulator (CueR) is a classical member of the MerR family of metalloregulators and is common in gram-negative bacteria. Through its C-terminal effector-binding domain, CueR senses cytoplasmic copper ions to regulate the transcription of genes contributing to copper homeostasis, an essential process for survival of all cells. In this chapter, we review the regulatory roles of CueR in the model organism Escherichia coli and the mechanisms for CueR in copper binding, DNA recognition, and interplay with RNA polymerase in regulating transcription. In light of biochemical and structural analyses, we provide molecular details for how CueR represses transcription in the absence of copper ions, how copper ions mediate CueR conformational change to form holo CueR, and how CueR bends and twists promoter DNA to activate transcription. We also characterize the functional domains and key residues involved in these processes. Since CueR is a representative member of the MerR family, elucidating its regulatory mechanisms could help to understand the CueR-like regulators in other organisms and facilitate the understanding of other metalloregulators in the same family.
Collapse
Affiliation(s)
- Yangbo Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, China.
| | - Bin Liu
- Section of Transcription & Gene Regulation, The Hormel Institute, University of Minnesota, Austin, MN, USA.
| |
Collapse
|
4
|
Sohail U, Ullah F, Binti Zainal Arfan NH, Abdul Hamid MHS, Mahmood T, Sheikh NS, Ayub K. Transition Metal Sensing with Nitrogenated Holey Graphene: A First-Principles Investigation. Molecules 2023; 28:molecules28104060. [PMID: 37241800 DOI: 10.3390/molecules28104060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/25/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
The toxicity of transition metals, including copper(II), manganese(II), iron(II), zinc(II), hexavalent chromium, and cobalt(II), at elevated concentrations presents a significant threat to living organisms. Thus, the development of efficient sensors capable of detecting these metals is of utmost importance. This study explores the utilization of two-dimensional nitrogenated holey graphene (C2N) nanosheet as a sensor for toxic transition metals. The C2N nanosheet's periodic shape and standard pore size render it well suited for adsorbing transition metals. The interaction energies between transition metals and C2N nanosheets were calculated in both gas and solvent phases and were found to primarily result from physisorption, except for manganese and iron which exhibited chemisorption. To assess the interactions, we employed NCI, SAPT0, and QTAIM analyses, as well as FMO and NBO analysis, to examine the electronic properties of the TM@C2N system. Our results indicated that the adsorption of copper and chromium significantly reduced the HOMO-LUMO energy gap of C2N and significantly increased its electrical conductivity, confirming the high sensitivity of C2N towards copper and chromium. The sensitivity test further confirmed the superior sensitivity and selectivity of C2N towards copper. These findings offer valuable insight into the design and development of sensors for the detection of toxic transition metals.
Collapse
Affiliation(s)
- Uroosa Sohail
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Faizan Ullah
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | | | | | - Tariq Mahmood
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
- Department of Chemistry, College of Science, University of Bahrain, Isa Town 32038, Bahrain
| | - Nadeem S Sheikh
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| |
Collapse
|
5
|
Wang B, Fang T, Chen H. Zinc and Central Nervous System Disorders. Nutrients 2023; 15:2140. [PMID: 37432243 DOI: 10.3390/nu15092140] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 07/12/2023] Open
Abstract
Zinc (Zn2+) is the second most abundant necessary trace element in the human body, exerting a critical role in many physiological processes such as cellular proliferation, transcription, apoptosis, growth, immunity, and wound healing. It is an essential catalyst ion for many enzymes and transcription factors. The maintenance of Zn2+ homeostasis is essential for the central nervous system, in which Zn2+ is abundantly distributed and accumulates in presynaptic vesicles. Synaptic Zn2+ is necessary for neural transmission, playing a pivotal role in neurogenesis, cognition, memory, and learning. Emerging data suggest that disruption of Zn2+ homeostasis is associated with several central nervous system disorders including Alzheimer's disease, depression, Parkinson's disease, multiple sclerosis, schizophrenia, epilepsy, and traumatic brain injury. Here, we reviewed the correlation between Zn2+ and these central nervous system disorders. The potential mechanisms were also included. We hope that this review can provide new clues for the prevention and treatment of nervous system disorders.
Collapse
Affiliation(s)
- Bangqi Wang
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical College, Nanchang University, Nanchang 330006, China
| | - Tianshu Fang
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical College, Nanchang University, Nanchang 330006, China
| | - Hongping Chen
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang 330006, China
| |
Collapse
|
6
|
Hirsch M, Hofmann L, Shenberger Y, Gevorkyan-Airapetov L, Ruthstein S. Conformations and Local Dynamics of the CopY Metal Sensor Revealed by EPR Spectroscopy. Biochemistry 2023; 62:797-807. [PMID: 36691693 DOI: 10.1021/acs.biochem.2c00480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Metal transcription factors regulate metal concentrations in eukaryotic and prokaryotic cells. Copper is a metal ion that is being tightly regulated, owing to its dual nature. Whereas copper is an essential nutrient for bacteria, it is also toxic at high concentrations. CopY is a metal-sensitive transcription factor belonging to the copper-responsive repressor family found in Gram-positive bacteria. CopY represses transcription in the presence of Zn(II) ions and initiates transcription in the presence of Cu(I) ions. The complete crystal structure of CopY has not been reported yet, therefore most of the structural information on this protein is based on its similarity to the well-studied MecI protein. In this study, electron paramagnetic resonance (EPR) spectroscopy was used to characterize structural and local dynamical changes in Streptococcus pneumoniae CopY as a function of Zn(II), Cu(I), and DNA binding. We detected different conformations and changes in local dynamics when CopY bound Zn(II), as opposed to Cu(I) ions. Furthermore, we explored the effects of metal ions and DNA on CopY conformation. Our results revealed the sensitivity and selectivity of CopY towards metal ions and provide new insight into the structural mechanism of the CopY transcription factor.
Collapse
Affiliation(s)
- Melanie Hirsch
- Department of Chemistry and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Lukas Hofmann
- Department of Chemistry and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Yulia Shenberger
- Department of Chemistry and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Lada Gevorkyan-Airapetov
- Department of Chemistry and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Sharon Ruthstein
- Department of Chemistry and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| |
Collapse
|
7
|
Saez-Zamacona I, Grindlay G, Martínez-Espinosa RM. Evaluation of Haloferax mediterranei Strain R4 Capabilities for Cadmium Removal from Brines. Mar Drugs 2023; 21:md21020072. [PMID: 36827113 PMCID: PMC9960891 DOI: 10.3390/md21020072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/08/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Haloferax mediterranei has revealed a high bioremediation potential for several inorganic anions (e.g., nitrates and nitrites) and metals from hypersaline waters and brines. However, it is unclear, to date, whether this microorganism allows Cd (II) bioremediation. Consequently, the main objective of this work was to assess the Cd (II) bioremediation potential of Hfx. mediterranei R4. To this end, Hfx. mediterranei cell growth rate and metal bioaccumulation were investigated using different culture media (complex, CM, and defined medium, DM) containing Cd (II) up to 1 mM. In addition, the elemental profile of the biomass (i.e., Al, Ba, Ca, Co, Cu, Fe, K, Mg, Mn, Na, Ni, Sr and Zn) has also been monitored to gain insight into the metabolic processes that may be taking place at the intracellular level for Cd (II) removal. Because of the formation of CdS precipitate, CM is not a suitable culture media for evaluating Cd bioremediation since metal concentration could not be appropriately controlled. When operating in DM, it was observed that the cell doubling time increases three times in the presence of Cd (II). Hfx. mediterranei can bioaccumulate Cd, showing the highest significant accumulation at concentrations of 0.4 mM (108 ± 12 mg Cd/g dry tissue). Finally, the presence of Cd (II) affects the content of K, Mg, Mn and Zn in the biomass, by increasing K levels up to 27 ± 18% and Mn up to 310 ± 140% and reducing Mg levels up to 55 ± 36% and Zn up to 30 ± 4%. These results suggest that different mechanisms are involved in Cd (II) tolerance by Hfx. mediterranei, resulting in increasing the cell concentration of stress-tolerant elements in the biomass (K and Mn), while lowering the concentration of elements which Cd (II) competes with (Mg and Zn), and that all affects the physiological response of the organism by decreasing its growth rate.
Collapse
Affiliation(s)
- Iraide Saez-Zamacona
- Multidisciplinary Institute for Environmental Studies “Ramón Margalef”, University of Alicante, Ap. 99, E-03080 Alicante, Spain
| | - Guillermo Grindlay
- Department of Analytical Chemistry, Nutrition and Food Sciences, Faculty of Sciences, University of Alicante, Ap. 99, E-03080 Alicante, Spain
| | - Rosa María Martínez-Espinosa
- Multidisciplinary Institute for Environmental Studies “Ramón Margalef”, University of Alicante, Ap. 99, E-03080 Alicante, Spain
- Biochemistry, Molecular Biology, Edaphology and Agricultural Chemistry Department, Faculty of Sciences, University of Alicante, Ap. 99, E-03080 Alicante, Spain
- Correspondence: ; Tel.: +349-6590-3400 (ext. 1258 or 8841)
| |
Collapse
|
8
|
Camponeschi F, Banci L. Metal trafficking in the cell: Combining atomic resolution with cellular dimension. FEBS Lett 2023; 597:122-133. [PMID: 36285633 DOI: 10.1002/1873-3468.14524] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 01/14/2023]
Abstract
Metals are widely present in biological systems as simple ions or complex cofactors, and are involved in a variety of processes essential for life. Their transport inside cells and insertion into the binding sites of the proteins that need metals to function occur through complex and selective pathways involving dedicated multiprotein machineries specifically and transiently interacting with each other, often sharing the coordination of metal ions and/or cofactors. The understanding of these machineries requires integrated approaches, ranging from bioinformatics to experimental investigations, possibly in the cellular context. In this review, we report two case studies where the use of integrated in vitro and in cellulo approaches is necessary to clarify at atomic resolution essential aspects of metal trafficking in cells.
Collapse
Affiliation(s)
- Francesca Camponeschi
- Magnetic Resonance Center CERM, University of Florence, Italy.,Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP), Florence, Italy
| | - Lucia Banci
- Magnetic Resonance Center CERM, University of Florence, Italy.,Consorzio Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP), Florence, Italy.,Department of Chemistry, University of Florence, Italy
| |
Collapse
|
9
|
Baksh KA, Augustine J, Sljoka A, Prosser RS, Zamble DB. Mechanistic insights into the nickel-dependent allosteric response of the Helicobacter pylori NikR transcription factor. J Biol Chem 2022; 299:102785. [PMID: 36502919 PMCID: PMC9860126 DOI: 10.1016/j.jbc.2022.102785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/30/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
In Helicobacter pylori, the nickel-responsive NikR transcription factor plays a key role in regulating intracellular nickel concentrations, which is an essential process for survival of this pathogen in the acidic human stomach. Nickel binding to H. pylori NikR (HpNikR) allosterically activates DNA binding to target promoters encoding genes involved in nickel homeostasis and acid adaptation, to either activate or repress their transcription. We previously showed that HpNikR adopts an equilibrium between an open conformation and DNA-binding competent cis and trans states. Nickel binding slows down conformational exchange between these states and shifts the equilibrium toward the binding-competent states. The protein then becomes stabilized in a cis conformation upon binding the ureA promoter. Here, we investigate how nickel binding creates this response and how it is transmitted to the DNA-binding domains. Through mutagenesis, DNA-binding studies, and computational methods, the allosteric response to nickel was found to be propagated from the nickel-binding sites to the DNA-binding domains via the β-sheets of the metal-binding domain and a network of residues at the inter-domain interface. Our computational results suggest that nickel binding increases protein rigidity to slow down the conformational exchange. A thymine base in the ureA promoter sequence, known to be critical for high affinity DNA binding by HpNikR, was also found to be important for the allosteric response, while a modified version of this promoter further highlighted the importance of the DNA sequence in modulating the response. Collectively, our results provide insights into regulation of a key protein for H. pylori survival.
Collapse
Affiliation(s)
- Karina A. Baksh
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada
| | - Jerry Augustine
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| | - Adnan Sljoka
- RIKEN Center for Advanced Intelligence Project, RIKEN, Chuo-ku, Tokyo, Japan,For correspondence: R. Scott Prosser; Adnan Sljoka
| | - R. Scott Prosser
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada,Department of Chemistry, University of Toronto, Toronto, Ontario, Canada,For correspondence: R. Scott Prosser; Adnan Sljoka
| | - Deborah B. Zamble
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada,Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
10
|
Singh D, Ibrahim A, Gupta R. Coumarin‐Based Reversible Fluorescent Chemosensors for the Sequential Detection of Copper and Citrate Ions. ChemistrySelect 2022. [DOI: 10.1002/slct.202203326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Devender Singh
- Department of Chemistry University of Delhi Delhi 110007 India
| | - Annan Ibrahim
- Department of Chemistry University of Delhi Delhi 110007 India
| | - Rajeev Gupta
- Department of Chemistry University of Delhi Delhi 110007 India
| |
Collapse
|
11
|
Chowdhury MAZ, Ok K, Luo Y, Liu Z, Chen S, O’Halloran TV, Kettimuthu R, Tekawade A. ROI-Finder: machine learning to guide region-of-interest scanning for X-ray fluorescence microscopy. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:1495-1503. [PMID: 36345757 PMCID: PMC9641565 DOI: 10.1107/s1600577522008876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
The microscopy research at the Bionanoprobe (currently at beamline 9-ID and later 2-ID after APS-U) of Argonne National Laboratory focuses on applying synchrotron X-ray fluorescence (XRF) techniques to obtain trace elemental mappings of cryogenic biological samples to gain insights about their role in critical biological activities. The elemental mappings and the morphological aspects of the biological samples, in this instance, the bacterium Escherichia coli (E. Coli), also serve as label-free biological fingerprints to identify E. coli cells that have been treated differently. The key limitations of achieving good identification performance are the extraction of cells from raw XRF measurements via binary conversion, definition of features, noise floor and proportion of cells treated differently in the measurement. Automating cell extraction from raw XRF measurements across different types of chemical treatment and the implementation of machine-learning models to distinguish cells from the background and their differing treatments are described. Principal components are calculated from domain knowledge specific features and clustered to distinguish healthy and poisoned cells from the background without manual annotation. The cells are ranked via fuzzy clustering to recommend regions of interest for automated experimentation. The effects of dwell time and the amount of data required on the usability of the software are also discussed.
Collapse
Affiliation(s)
- M. A. Z. Chowdhury
- Data Science and Learning Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - K. Ok
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
| | - Y. Luo
- X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, USA
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Z. Liu
- Data Science and Learning Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - S. Chen
- X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, USA
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - T. V. O’Halloran
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - R. Kettimuthu
- Data Science and Learning Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - A. Tekawade
- Data Science and Learning Division, Argonne National Laboratory, Lemont, IL 60439, USA
| |
Collapse
|
12
|
Wang D, Li SJ, Cao W, Wang Z, Ma Y. ESIPT-Active 8-Hydroxyquinoline-Based Fluorescence Sensor for Zn(II) Detection and Aggregation-Induced Emission of the Zn(II) Complex. ACS OMEGA 2022; 7:18017-18026. [PMID: 35664592 PMCID: PMC9161411 DOI: 10.1021/acsomega.2c01414] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/09/2022] [Indexed: 05/26/2023]
Abstract
A D-π-A type quinoline derivative, 2-(((4-(1, 2, 2-triphenylvinyl)phenyl)imino)methyl)quinolin-8-ol (HL), was synthesized and structurally characterized. The five-membered ring formed by the O-H···N hydrogen bond in HL contributed to the excited-state intramolecular proton transfer (ESIPT) behavior of HL, which was further verified by theoretical computations. Upon coordination with Zn2+, the hydroxyl proton in HL was removed, resulting in the inhibition of ESIPT. In the meanwhile, the formed Zn 2 L 4 complex displayed aggregation-induced emission (AIE) character in THF/H2O mixtures, which is conducive to the fluorescence enhancement in aqueous media. Structure analysis suggested that the origin of the AIE characteristic was attributed to restriction of intramolecular rotations along with the formation of J-aggregates. Based on ESIPT coupled with AIE, HL could recognize Zn(II) in aqueous media via an orange fluorescence turn-on mode. Benefitting from the AIE property, chemosensor HL was successfully applied to fabricate test strips for rapid sensing of Zn(II) ions.
Collapse
Affiliation(s)
- Dan Wang
- Key
Laboratory of Chemical Additives for China National Light Industry,
College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, People’s Republic of China
| | - Shao-Jie Li
- Key
Laboratory of Chemical Additives for China National Light Industry,
College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, People’s Republic of China
| | - Wei Cao
- Scientific
Instrument Center, Shanxi University, Taiyuan 030006, People’s Republic of China
| | - Zheng Wang
- Key
Laboratory of Chemical Additives for China National Light Industry,
College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, People’s Republic of China
| | - Yangmin Ma
- Key
Laboratory of Chemical Additives for China National Light Industry,
College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, People’s Republic of China
| |
Collapse
|
13
|
Lehel J, Grúz A, Bartha A, Pintér I, Lénárt Z, Major L, Menyhárt L, Szabó R, Budai P. Comparison of metal burden in different muscle tissues of Great cormorant (Phalacrocorax carbo). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:2375-2384. [PMID: 34370194 PMCID: PMC8732976 DOI: 10.1007/s11356-021-15600-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023]
Abstract
Concentrations of 12 metals (As, Ba, Cd, Co, Cr, Cu, Hg, Mn, Mo, Ni, Pb and Zn) were examined in the pectoral and thigh muscle of great cormorants (Phalacrocorax carbo). The samples were collected from Central Tisza-Jászság Nature Conservation Area in Hungary. The tissue samples were analysed by inductively coupled plasma optical emission spectroscopy (ICP-OES). The aim of the study was to examine the impacts of heavy metal pollution on the water birds, determine the concentrations of the abovementioned metals in the different muscle tissues of these wetland birds, and provide the basic materials for monitoring the environmental pollution. Among the investigated elements/metals, the detected concentrations of As, Ba, Cd, Co, Cr, Mo and Ni were below the detection limit. Higher concentration of Cu, Hg, Mn and Pb was measured in the pectoral muscle compared to the thigh muscle, but only in the case of Cu and Mn were found significant differences between the tissues. In the case of the Zn concentration, the higher value was detected in the thigh muscle. There were no statistical differences between males and females in either metal concentrations.
Collapse
Affiliation(s)
- József Lehel
- Department of Food Hygiene, University of Veterinary Medicine, István u. 2, Budapest, H-1400, Hungary.
| | - Adrienn Grúz
- Institute of Plant Protection, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, Deák F. u. 16, Keszthely, H-8360, Hungary.
| | - András Bartha
- Herd Health and Mobile Clinic, Department of Animal Hygiene, University of Veterinary Medicine, István u. 2, Budapest, H-1400, Hungary
| | - Imre Pintér
- Division of Plant Protection and Soil Conservation, Department of Agriculture, Government Office of Jász-Nagykun-Szolnok County, Vízpart blvd. 28, Szolnok, H-5000, Hungary
| | - Zoltán Lénárt
- Department of Food Hygiene, University of Veterinary Medicine, István u. 2, Budapest, H-1400, Hungary
| | - László Major
- Institute of Plant Protection, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, Deák F. u. 16, Keszthely, H-8360, Hungary
| | - László Menyhárt
- Institute of Technology, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, Deák F. u. 16, Keszthely, H-8360, Hungary
| | - Rita Szabó
- Institute of Plant Protection, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, Deák F. u. 16, Keszthely, H-8360, Hungary
| | - Péter Budai
- Institute of Plant Protection, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, Deák F. u. 16, Keszthely, H-8360, Hungary
| |
Collapse
|
14
|
Karuppiah K, Muniyasamy H, Nelson M, Selvaraj M, Sepperumal M, Ayyanar S. A novel indolehydrazone appended salicyaldehyde platform for detection of multianalytes (Al3+, Zn2+ and F- ions): Live cell imaging. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
15
|
Bag R, Sikdar Y, Sahu S, Islam MM, Mandal S, Goswami S. Benzimidazole–acid hydrazide Schiff–Mannich combo ligands enable nano–molar detection of Zn 2+ via fluorescence turn–on mode from semi–aqueous medium, HuH–7 cells, and plants. NEW J CHEM 2022. [DOI: 10.1039/d2nj02875a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we have synthesized two unsymmetrical and dipodal Schiff–Mannich combo ligands, benzoic acid (3–benzoimidazol–1–ylmethyl–2–hydroxy–5–methyl–benzylidene)–hydrazide (H2BBH) and the hydroxyl analogue, 2–hydroxy–benzoic acid (3–benzoimidazol–1–ylmethyl–2–hydroxy–5–methyl–benzylidene)–hydrazide (H3BSH) for selective detection of Zn2+ in semi–aqueous...
Collapse
|
16
|
Yoon C, Lee SJ. Selective coordination of cobalt ions by zinc fingers in
Escherichia coli
. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chungwoon Yoon
- Department of Chemistry and Institute for Molecular Biology and Genetics Jeonbuk National University Jeonju Republic of Korea
| | - Seung Jae Lee
- Department of Chemistry and Institute for Molecular Biology and Genetics Jeonbuk National University Jeonju Republic of Korea
| |
Collapse
|
17
|
Gallio A, Fung SSP, Cammack-Najera A, Hudson AJ, Raven EL. Understanding the Logistics for the Distribution of Heme in Cells. JACS AU 2021; 1:1541-1555. [PMID: 34723258 PMCID: PMC8549057 DOI: 10.1021/jacsau.1c00288] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Indexed: 05/03/2023]
Abstract
Heme is essential for the survival of virtually all living systems-from bacteria, fungi, and yeast, through plants to animals. No eukaryote has been identified that can survive without heme. There are thousands of different proteins that require heme in order to function properly, and these are responsible for processes such as oxygen transport, electron transfer, oxidative stress response, respiration, and catalysis. Further to this, in the past few years, heme has been shown to have an important regulatory role in cells, in processes such as transcription, regulation of the circadian clock, and the gating of ion channels. To act in a regulatory capacity, heme needs to move from its place of synthesis (in mitochondria) to other locations in cells. But while there is detailed information on how the heme lifecycle begins (heme synthesis), and how it ends (heme degradation), what happens in between is largely a mystery. Here we summarize recent information on the quantification of heme in cells, and we present a discussion of a mechanistic framework that could meet the logistical challenge of heme distribution.
Collapse
Affiliation(s)
- Andrea
E. Gallio
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
| | - Simon S.-P. Fung
- Department
of Chemistry and Leicester Institute of Structural and Chemical Biology, University of Leicester, Leicester LE1 7RH, U.K.
| | - Ana Cammack-Najera
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
| | - Andrew J. Hudson
- Department
of Chemistry and Leicester Institute of Structural and Chemical Biology, University of Leicester, Leicester LE1 7RH, U.K.
| | - Emma L. Raven
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
| |
Collapse
|
18
|
A highly selective turn-on fluorescent chemosensor for detecting zinc ions in living cells using symmetrical pyrene system. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113372] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
19
|
Serafini A. Interplay between central carbon metabolism and metal homeostasis in mycobacteria and other human pathogens. MICROBIOLOGY (READING, ENGLAND) 2021; 167. [PMID: 34080971 DOI: 10.1099/mic.0.001060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bacterial nutrition is a fundamental aspect of pathogenesis. While the host environment is in principle nutrient-rich, hosts have evolved strategies to interfere with nutrient acquisition by pathogens. In turn, pathogens have developed mechanisms to circumvent these restrictions. Changing the availability of bioavailable metal ions is a common strategy used by hosts to limit bacterial replication. Macrophages and neutrophils withhold iron, manganese, and zinc ions to starve bacteria. Alternatively, they can release manganese, zinc, and copper ions to intoxicate microorganisms. Metals are essential micronutrients and participate in catalysis, macromolecular structure, and signalling. This review summarises our current understanding of how central carbon metabolism in pathogens adapts to local fluctuations in free metal ion concentrations. We focus on the transcriptomics and proteomics data produced in studies of the iron-sparing response in Mycobacterium tuberculosis, the etiological agent of tuberculosis, and consequently generate a hypothetical model linking trehalose accumulation, succinate secretion and substrate-level phosphorylation in iron-starved M. tuberculosis. This review also aims to highlight a large gap in our knowledge of pathogen physiology: the interplay between metal homeostasis and central carbon metabolism, two cellular processes which are usually studied separately. Integrating metabolism and metal biology would allow the discovery of new weaknesses in bacterial physiology, leading to the development of novel and improved antibacterial therapies.
Collapse
Affiliation(s)
- Agnese Serafini
- Independent researcher 00012 Guidonia Montecelio, Rome, Italy
| |
Collapse
|
20
|
Abstract
In addition to heme's role as the prosthetic group buried inside many different proteins that are ubiquitous in biology, there is new evidence that heme has substantive roles in cellular signaling and regulation. This means that heme must be available in locations distant from its place of synthesis (mitochondria) in response to transient cellular demands. A longstanding question has been to establish the mechanisms that control the supply and demand for cellular heme. By fusing a monomeric heme-binding peroxidase (ascorbate peroxidase, mAPX) to a monomeric form of green-fluorescent protein (mEGFP), we have developed a heme sensor (mAPXmEGFP) that can respond to heme availability. By means of fluorescence lifetime imaging, this heme sensor can be used to quantify heme concentrations; values of the mean fluorescence lifetime (τMean) for mAPX-mEGFP are shown to be responsive to changes in free (unbound) heme concentration in cells. The results demonstrate that concentrations are typically limited to one molecule or less within cellular compartments. These miniscule amounts of free heme are consistent with a system that sequesters the heme and is able to buffer changes in heme availability while retaining the capability to mobilize heme when and where it is needed. We propose that this exchangeable supply of heme can operate using mechanisms for heme transfer that are analogous to classical ligand-exchange mechanisms. This exquisite control, in which heme is made available for transfer one molecule at a time, protects the cell against the toxic effect of excess heme and offers a simple mechanism for heme-dependent regulation in single-molecule steps.
Collapse
|
21
|
Wani AL, Hammad Ahmad Shadab GG, Afzal M. Lead and zinc interactions - An influence of zinc over lead related toxic manifestations. J Trace Elem Med Biol 2021; 64:126702. [PMID: 33285442 DOI: 10.1016/j.jtemb.2020.126702] [Citation(s) in RCA: 4] [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: 07/31/2019] [Revised: 09/30/2020] [Accepted: 11/23/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND Interaction between metals is known from earlier studies, in which one metal influences the absorption and functional role of other. Lead is known to cause debilitating effects in living organisms and also prevents several essential trace metals from functioning normally. METHODS The relevant literature using the key words lead toxicity, lead zinc interaction, zinc nutrition and the ability of zinc to act against lead has been reviewed. RESULTS Role of several nutrients in reducing the manifestations of toxic metals have been elucidated recently. Lead damages bio-membranes, causes cognitive disabilities and disturbs the normal process of DNA replication and transcription. Zinc on the other hand helps in proper maintenance of the cellular membranes and plays an important role as a metal cofactor in most of the proteins vital for membrane integrity. Zinc has essential role in cognitive functioning, zinc finger proteins and significantly neutralizes most toxic effects of lead. CONCLUSION Increased lead exposure and limited resources for tackling lead poisoning may cause an increased possibility of future environmental emergencies. Interactions between essential nutrient metals and non-essential toxic metals may act as important factor which can be used to target the metal toxicities. An assumption is made that the lead toxicity can be reduced by maintaining the status of essential trace metals like zinc.
Collapse
Affiliation(s)
- Ab Latif Wani
- Cytogenetics and Molecular Toxicological Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India.
| | - G G Hammad Ahmad Shadab
- Cytogenetics and Molecular Toxicological Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India.
| | - Mohammad Afzal
- Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, Uttar Pradesh, India
| |
Collapse
|
22
|
Fang C, Philips SJ, Wu X, Chen K, Shi J, Shen L, Xu J, Feng Y, O’Halloran TV, Zhang Y. CueR activates transcription through a DNA distortion mechanism. Nat Chem Biol 2021; 17:57-64. [PMID: 32989300 PMCID: PMC9904984 DOI: 10.1038/s41589-020-00653-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 08/14/2020] [Indexed: 01/16/2023]
Abstract
The MerR-family transcription factors (TFs) are a large group of bacterial proteins responding to cellular metal ions and multiple antibiotics by binding within central RNA polymerase-binding regions of a promoter. While most TFs alter transcription through protein-protein interactions, MerR TFs are capable of reshaping promoter DNA. To address the question of which mechanism prevails, we determined two cryo-EM structures of transcription activation complexes (TAC) comprising Escherichia coli CueR (a prototype MerR TF), RNAP holoenzyme and promoter DNA. The structures reveal that this TF promotes productive promoter-polymerase association without canonical protein-protein contacts seen between other activator proteins and RNAP. Instead, CueR realigns the key promoter elements in the transcription activation complex by clamp-like protein-DNA interactions: these induce four distinct kinks that ultimately position the -10 element for formation of the transcription bubble. These structural and biochemical results provide strong support for the DNA distortion paradigm of allosteric transcriptional control by MerR TFs.
Collapse
Affiliation(s)
- Chengli Fang
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Steven J. Philips
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Xiaoxian Wu
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kui Chen
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Jing Shi
- Department of Biophysics, and Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Liqiang Shen
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juncao Xu
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Feng
- Department of Biophysics, and Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Thomas V. O’Halloran
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA.,Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.,The Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA.,Corresponding author: (T.V.O.); (Y.F.); (Y.Z.)
| | - Yu Zhang
- Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
| |
Collapse
|
23
|
Ahmed N, Zareen W, Zhang D, Yang X, Ye Y. A DCM-based NIR sensor for selective and sensitive detection of Zn 2+ in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 243:118758. [PMID: 32810778 DOI: 10.1016/j.saa.2020.118758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/19/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
Zinc ion is the 2nd abundant transition metal element in human's body. It is responsible for many physiological and biological functioning in the body, such as growth of people, immunity, endocrine, etc. The deficiency of zinc could result in an increasing risk for growth retardation, neurological disorder and infectious disease. Thus, developing a nondestructive method for detecting Zn2+ in living systems is important. Here we reported a 2-(2-methyl-4H-ylidene)- malononitrile (DCM)-based NIR probe DF-Zn for selective and sensitive detection of Zn2+. The probe DF-Zn is cell-permeable and stable at broad pH range. DF-Zn showed a fast response to Zn2+, big stock's shift, and "nude-eye" recognition for Zn2+. Moreover, the selective binding of probe DF-Zn to Zn2+ was reversible. With the addition of EDTA in buffer solution, reversible response of probe to Zn2+ could be observed in MCF-7 cells imaging.
Collapse
Affiliation(s)
- Nadeem Ahmed
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Wajeeha Zareen
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Di Zhang
- Institute of Agricultural Quality Standards and Testing Technology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China.
| | - Xiaopeng Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Yong Ye
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| |
Collapse
|
24
|
Molecular characterization, antibiogram and distribution of zntA gene in zinc-resistant Escherichia coli population recovered from anthropogenically-influenced surface water sources in Nigeria. Meta Gene 2020. [DOI: 10.1016/j.mgene.2020.100789] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
25
|
A rhodanine-based fluorescent chemosensor for sensing Zn2+ and Cd2+: Applications to water sample and cell imaging. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119936] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
26
|
Jackson AC, Liu J, Vallanat B, Jones C, Nelms MD, Patlewicz G, Corton JC. Identification of novel activators of the metal responsive transcription factor (MTF-1) using a gene expression biomarker in a microarray compendium. Metallomics 2020; 12:1400-1415. [PMID: 32661532 PMCID: PMC10776036 DOI: 10.1039/d0mt00071j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Environmental exposure to metals is known to cause a number of human toxicities including cancer. Metal-responsive transcription factor 1 (MTF-1) is an important component of metal regulation systems in mammalian cells. Here, we describe a novel method to identify chemicals that activate MTF-1 based on microarray profiling data. MTF-1 biomarker genes were identified that exhibited consistent, robust expression across 10 microarray comparisons examining the effects of metals (zinc, nickel, lead, arsenic, mercury, and silver) on gene expression in human cells. A subset of the resulting 81 biomarker genes was shown to be altered by knockdown of the MTF1 gene including metallothionein family members and a zinc transporter. The ability to correctly identify treatment conditions that activate MTF-1 was determined by comparing the biomarker to microarray comparisons from cells exposed to reference metal activators of MTF-1 using the rank-based Running Fisher algorithm. The balanced accuracy for prediction was 93%. The biomarker was then used to identify organic chemicals that activate MTF-1 from a compendium of 11 725 human gene expression comparisons representing 2582 chemicals. There were 700 chemicals identified that included those known to interact with cellular metals, such as clioquinol and disulfiram, as well as a set of novel chemicals. All nine of the novel chemicals selected for validation were confirmed to activate MTF-1 biomarker genes in MCF-7 cells and to lesser extents in MTF1-null cells by qPCR and targeted RNA-Seq. Overall, our work demonstrates that the biomarker for MTF-1 coupled with the Running Fisher test is a reliable strategy to identify novel chemical modulators of metal homeostasis using gene expression profiling.
Collapse
Affiliation(s)
- Abigail C Jackson
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA. and Department of Chemistry, Duke University, Durham, NC 27708, USA
| | - Jie Liu
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - Beena Vallanat
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - Carlton Jones
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - Mark D Nelms
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA. and Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA
| | - Grace Patlewicz
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - J Christopher Corton
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| |
Collapse
|
27
|
Xu H, Zhu C, Chen Y, Bai Y, Han Z, Yao S, Jiao Y, Yuan H, He W, Guo Z. A FRET-based fluorescent Zn 2+ sensor: 3D ratiometric imaging, flow cytometric tracking and cisplatin-induced Zn 2+ fluctuation monitoring. Chem Sci 2020; 11:11037-11041. [PMID: 34123194 PMCID: PMC8162301 DOI: 10.1039/d0sc03037f] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Monitoring labile Zn2+ homeostasis is of great importance for the study of physiological functions of Zn2+ in biological systems. Here we report a novel ratiometric fluorescent Zn2+ sensor, CPBT, which was constructed based on chelation-induced alteration of FRET efficiency. CPBT was readily cell membrane permeable and showed a slight preferential localization in the endoplasmic reticulum. With this sensor, 3D ratiometric Zn2+ imaging was first realized in the head of zebra fish larvae via Z-stack mode. CPBT could track labile Zn2+ in a large number of cells through ratiometric flow cytometric assay. More interestingly, both ratiometric fluorescence imaging and flow cytometric assay demonstrated that the labile Zn2+ level in MCF-7 cells (cisplatin-sensitive) decreased while that in SKOV3 cells (cisplatin-insensitive) increased after cisplatin treatment, indicating that Zn2+ may play an important role in cisplatin induced signaling pathways in these cancer cells. A Zn2+ sensor exhibiting 3D ratiometric imaging and flow cytometric ability was constructed based on the FRET mechanism, and cisplatin-induced endogenous labile Zn2+ fluctuations were monitored in real time.![]()
Collapse
Affiliation(s)
- Hongxia Xu
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Chengcheng Zhu
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Yuncong Chen
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China .,Chemistry and Biomedicine Innovation Center, Nanjing University Nanjing 210023 P. R. China
| | - Yang Bai
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Zhong Han
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Shankun Yao
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Yang Jiao
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Hao Yuan
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Weijiang He
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China
| | - Zijian Guo
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China .,Chemistry and Biomedicine Innovation Center, Nanjing University Nanjing 210023 P. R. China
| |
Collapse
|
28
|
Hu Y, Du L, Yang J. A highly sensitive and selective chemosensors for detection of Zn2+ and its application in live cell imaging. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119675] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
29
|
Ghosh P, Maayan G. A rationally designed peptoid for the selective chelation of Zn 2+ over Cu 2. Chem Sci 2020; 11:10127-10134. [PMID: 34094275 PMCID: PMC8162371 DOI: 10.1039/d0sc03391j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The selective removal of Zn2+ from proteins by using a synthetic chelator is a promising therapeutic approach for the treatment of various diseases including cancer. Although the chelation of Zn2+ is well known, its removal from a protein in the presence of potential competing biologically relevant ions such as Cu2+ is hardly explored. Herein we present a peptoid - N-substituted glycine trimer - incorporating a picolyl group at the N-terminus, a non-coordinating but structurally directing benzyl group at the C-terminus and a 2,2':6',2''-terpyridine group in the second position, that selectively binds Zn2+ ions in the presence of excess Cu2+ ions in water. We further demonstrate that this chelator can selectively bind Zn2+ from a pool of excess biologically relevant and competitive ions (Cu2+, Fe3+, Ca2+, Mg2+, Na+, and K+) in a simulated body fluid (SBF), and also its ability to remove Zn2+ from a natural zinc protein domain (PYKCPECGKSFSQKSDLVKHQRTHTG) in a SBF.
Collapse
Affiliation(s)
- Pritam Ghosh
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology Technion City Haifa 3200008 Israel
| | - Galia Maayan
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology Technion City Haifa 3200008 Israel
| |
Collapse
|
30
|
Boles GC, Stevenson BC, Hightower RL, Berden G, Oomens J, Armentrout PB. Zinc and cadmium complexation of L-methionine: An infrared multiple photon dissociation spectroscopy and theoretical study. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 56:e4580. [PMID: 32677757 DOI: 10.1002/jms.4580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/14/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
Methionine (Met) cationized with Zn2+ , forming Zn (Met-H)+ (ACN) where ACN = acetonitrile, Zn (Met-H)+ , and ZnCl+ (Met), as well as Cd2+ , forming CdCl+ (Met), were examined by infrared multiple photon dissociation (IRMPD) action spectroscopy using light generated from the FELIX free electron laser. A series of low-energy conformers for each complex was found using quantum-chemical calculations in order to identify the structures formed experimentally. For all four complexes, spectral comparison indicated that the main binding motif observed is a charge solvated, tridentate structure where the metal center binds to the backbone amino group nitrogen, backbone carbonyl oxygen (where the carboxylic acid is deprotonated in two of the Zn2+ complexes), and side-chain sulfur. For all species, the predicted ground structures reproduce the experimental spectra well, although low-lying conformers characterized by similar binding motifs may also contribute in each system. The current work provides valuable information regarding the binding interaction between Met and biologically relevant metals. Further, the comparison between the current work and previous analyses involving alkali metal cationized Met as well as cysteine (the other sulfur containing amino acid) cationized with Zn2+ and Cd2+ allows for the elucidation of important metal dependent trends associated with physiologically important metal-sulfur binding.
Collapse
Affiliation(s)
- Georgia C Boles
- Department of Chemistry, University of Utah, Salt Lake City, Utah, USA
| | | | - Randy L Hightower
- Department of Chemistry, University of Utah, Salt Lake City, Utah, USA
| | - Giel Berden
- FELIX Laboratory, Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands
| | - Jos Oomens
- FELIX Laboratory, Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - P B Armentrout
- Department of Chemistry, University of Utah, Salt Lake City, Utah, USA
| |
Collapse
|
31
|
Yu M, Xie D, Kadakia RT, Wang W, Que EL. Harnessing chemical exchange: 19F magnetic resonance OFF/ON zinc sensing with a Tm(iii) complex. Chem Commun (Camb) 2020; 56:6257-6260. [PMID: 32373870 DOI: 10.1039/d0cc01876g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A fluorinated, thulium(iii) complex (Tm-PFZ-1) serves as an off-on 19F magnetic resonance probe for Zn(ii). Rapid exchange among different conformations combined with paramagnetic relaxation and chemical shift effects of Tm(iii) effectively eliminate the 19F NMR/MRI signal in Tm-PFZ-1. Chelation of Zn(ii) induces increased structural rigidity and reduces exchange rate, affording a robust 19F NMR/MRI signal. Tm-PFZ-1 represents a first-in-class paramagnetic 19F MR agent that exploits a novel sensing mechanism for Zn(ii) and is the first 19F MR-based scaffold to provide an "off-on" response to Zn(ii) in aqueous solution.
Collapse
Affiliation(s)
- Meng Yu
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th St Stop A5300, Austin, Texas 78712, USA.
| | | | | | | | | |
Collapse
|
32
|
Dorman CJ, Schumacher MA, Bush MJ, Brennan RG, Buttner MJ. When is a transcription factor a NAP? Curr Opin Microbiol 2020; 55:26-33. [PMID: 32120333 DOI: 10.1016/j.mib.2020.01.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 02/03/2023]
Abstract
Proteins that regulate transcription often also play an architectural role in the genome. Thus, it has been difficult to define with precision the distinctions between transcription factors and nucleoid-associated proteins (NAPs). Anachronistic descriptions of NAPs as 'histone-like' implied an organizational function in a bacterial chromatin-like complex. Definitions based on protein abundance, regulatory mechanisms, target gene number, or the features of their DNA-binding sites are insufficient as marks of distinction, and trying to distinguish transcription factors and NAPs based on their ranking within regulatory hierarchies or positions in gene-control networks is also unsatisfactory. The terms 'transcription factor' and 'NAP' are ad hoc operational definitions with each protein lying along a spectrum of structural and functional features extending from highly specific actors with few gene targets to those with a pervasive influence on the transcriptome. The Streptomyces BldC protein is used to illustrate these issues.
Collapse
Affiliation(s)
- Charles J Dorman
- Department of Microbiology, Moyne Institute of Preventive Medicine, Trinity College Dublin, Dublin 2, Ireland.
| | - Maria A Schumacher
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, USA
| | - Matthew J Bush
- Department of Molecular Microbiology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Richard G Brennan
- Department of Biochemistry, Duke University School of Medicine, Durham, NC 27710, USA
| | - Mark J Buttner
- Department of Molecular Microbiology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK.
| |
Collapse
|
33
|
Baksh KA, Zamble DB. Allosteric control of metal-responsive transcriptional regulators in bacteria. J Biol Chem 2020; 295:1673-1684. [PMID: 31857375 PMCID: PMC7008368 DOI: 10.1074/jbc.rev119.011444] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Many transition metals are essential trace nutrients for living organisms, but they are also cytotoxic in high concentrations. Bacteria maintain the delicate balance between metal starvation and toxicity through a complex network of metal homeostasis pathways. These systems are coordinated by the activities of metal-responsive transcription factors-also known as metal-sensor proteins or metalloregulators-that are tuned to sense the bioavailability of specific metals in the cell in order to regulate the expression of genes encoding proteins that contribute to metal homeostasis. Metal binding to a metalloregulator allosterically influences its ability to bind specific DNA sequences through a variety of intricate mechanisms that lie on a continuum between large conformational changes and subtle changes in internal dynamics. This review summarizes recent advances in our understanding of how metal sensor proteins respond to intracellular metal concentrations. In particular, we highlight the allosteric mechanisms used for metal-responsive regulation of several prokaryotic single-component metalloregulators, and we briefly discuss current open questions of how metalloregulators function in bacterial cells. Understanding the regulation and function of metal-responsive transcription factors is a fundamental aspect of metallobiochemistry and is important for gaining insights into bacterial growth and virulence.
Collapse
Affiliation(s)
- Karina A Baksh
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Deborah B Zamble
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada; Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada.
| |
Collapse
|
34
|
Alizadeh F, Davoodian N, Kazemi H, Ghasemi-Kasman M, Shaerzadeh F. Prenatal zinc supplementation attenuates lipopolysaccharide-induced behavioral impairments in maternal immune activation model. Behav Brain Res 2019; 377:112247. [PMID: 31545978 DOI: 10.1016/j.bbr.2019.112247] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/05/2019] [Accepted: 09/16/2019] [Indexed: 11/16/2022]
Abstract
Maternal infection during pregnancy is considered a key risk factor for developing schizophrenia in offspring. There is evidence that maternal exposure to infectious agents is associated with fetal zinc deficiency. Due to the essential role of zinc in brain function and development, in the present study, we activated maternal immune system using lipopolysaccharide (LPS) as a model of schizophrenia to examine whether zinc supplementation throughout pregnancy can reverse LPS-induced deleterious effects. To test the hypothesis, pregnant rats were treated with intraperitoneal injection of either saline or LPS (0.5 mg/kg) at gestational day 15 and 16, and zinc supplementation (30 mg/kg) was administered throughout pregnancy by gavage. At postnatal day 60, Y-maze was used to evaluate working memory of offspring. Moreover, the expression levels of catechol O-methyltransferase (COMT) and glutamate decarboxylase 67 (GAD67) were measured in the frontal cortex of the brain samples. Only male offspring prenatally exposed to LPS showed a significant impairment in working memory. In addition, prenatal LPS exposure causes a moderate decrease in GAD67 expression level in the male pups, while COMT expression was found unchanged. Interestingly, zinc supplementation restored the alterations in working memory as well as GAD67 mRNA level in the male rats. No alteration was detected for neither working memory nor COMT/GAD67 genes expression in female offspring. This study demonstrates that zinc supplementation during pregnancy can attenuate LPS-induced impairments in male pups. These results support the idea to consume zinc supplementation during pregnancy to limit neurodevelopmental deficits induced by infections in offspring.
Collapse
Affiliation(s)
- Faezeh Alizadeh
- Endocrinology and Metabolism Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Nahid Davoodian
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran; Department of Clinical Biochemistry, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
| | - Haniyeh Kazemi
- Molecular Medicine Research Center, Hormozgan Health Institute, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Maryam Ghasemi-Kasman
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Science, Babol, Iran; Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Fatemeh Shaerzadeh
- Department of Neuroscience, University of Florida College of Medicine and McKnight Brain Institute, Gainesville, FL, 32610, USA
| |
Collapse
|
35
|
Wang P, Wu X, Wu J, Liao Y. Highly selective and sensitive peptide-based fluorescent chemosensor for detection of Zinc(II) ions in aqueous medium and living cells. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111929] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
36
|
Dey S, Pal K, Jana K, Sinha C. Effect of ‐OMe Substituent on Salicylaldehyde Schiff Base to Influence the Zn
2+
Sensitivity and the Cancer Cell Line Imaging. ChemistrySelect 2019. [DOI: 10.1002/slct.201901584] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Sunanda Dey
- Department of ChemstryJadavpur University Kolkata- 700 032 India
| | - Kunal Pal
- Department of Life Science and BiotechnologyJadavpur University Kolkata- 700032 India
- Division of Molecular Medicine and Centre for Translational ResearchBose Institute Kolkata- 700056 India
| | - Kuladip Jana
- Division of Molecular Medicine and Centre for Translational ResearchBose Institute Kolkata- 700056 India
| | | |
Collapse
|
37
|
Zhang Z, Li H, Li Y, Yu X. Full-color emission of a Eu 3+-based mesoporous hybrid material modulated by Zn 2+ ions: emission color changes for Zn 2+ sensing via an ion exchange approach. Dalton Trans 2019; 48:10547-10556. [PMID: 31215572 DOI: 10.1039/c9dt01668f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We reported on the fabrication of a multicolor fluorescent sensor for Zn2+ ions based on the Eu complex functionalized mesoporous hybrid material Eu(TTA-MSN)2L (TTA: 2-thenoyltrifluoroacetone, HL: 4'-(4-carboxy-methyleneoxyphenyl)-2,2':6',2''-terpyridinel). The material was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and N2 adsorption measurements. The results revealed that the material preserves mesoscopically ordered structures and exhibited highly uniform pore size distributions. Spectroscopic analyses showed that the mesoporous hybrid material Eu(TTA-MSN)2L exhibited the characteristic emission of Eu3+ ions, reasonably long lifetimes (0.62 ms), and high quantum yields (18.4%). Moreover, the material displayed a highly selective and sensitive function toward Zn2+ ions in aqueous solutions. This sensing function could be attributed to the cation exchange of Eu3+ in the parent material Eu(TTA-MSN)2L with Zn2+. More importantly, by only modulating the concentration of Zn2+ ions in the water solution of Eu(TTA-MSN)2L, a tunable full-color emission (including white-light emission) can be generated under single-wavelength excitation. To our knowledge, this effort is the first example of a multicolor emissive sensor for Zn2+ ions in water solutions based on lanthanide mesoporous hybrid material.
Collapse
Affiliation(s)
- Zheng Zhang
- College of Science, and Hebei Research Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang 050080, PR China.
| | - Heng Li
- College of Science, and Hebei Research Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang 050080, PR China.
| | - Yajuan Li
- College of Science, and Hebei Research Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang 050080, PR China.
| | - Xudong Yu
- College of Science, and Hebei Research Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Yuhua Road 70, Shijiazhuang 050080, PR China.
| |
Collapse
|
38
|
Kim MS, Jo TG, Yang M, Han J, Lim MH, Kim C. A fluorescent and colorimetric Schiff base chemosensor for the detection of Zn 2+ and Cu 2+: Application in live cell imaging and colorimetric test kit. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 211:34-43. [PMID: 30502582 DOI: 10.1016/j.saa.2018.11.058] [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: 08/08/2018] [Revised: 11/13/2018] [Accepted: 11/22/2018] [Indexed: 06/09/2023]
Abstract
A novel Schiff base chemosensor HMID, ((E)‑1‑((2‑hydroxy‑3‑methoxybenzylidene)amino)imidazolidine‑2,4‑dione), have been designed and synthesized. Sensor HMID showed a selectivity to Zn2+ through fluorescence enhancement in aqueous solution. Its detection limit was analyzed as 11.9 μM. Importantly, compound HMID could be applied to image Zn2+ in live cells. Detection mechanism of Zn2+ by HMID was suggested to be an effect of chelation-enhanced fluorescence (CHEF) by DFT calculations. Moreover, HMID could detect Cu2+ with a change of color from colorless to pink. The selective detection mechanism of Cu2+ by HMID was demonstrated to be the promotion of intramolecular charge transfer band by DFT calculations. Additionally, HMID could be employed as a naked-eye colorimetric kit for Cu2+. Therefore, HMID has the ability as a 'single sensor for dual targets'.
Collapse
Affiliation(s)
- Min Seon Kim
- Department of Fine Chem., Seoul National Univ. of Sci. and Tech. (SNUT), Seoul 01811, Republic of Korea
| | - Tae Geun Jo
- Department of Fine Chem., Seoul National Univ. of Sci. and Tech. (SNUT), Seoul 01811, Republic of Korea
| | - Minuk Yang
- Department of Fine Chem., Seoul National Univ. of Sci. and Tech. (SNUT), Seoul 01811, Republic of Korea
| | - Jiyeon Han
- Department of Chem., KAIST, Daejeon 34141, Republic of Korea
| | - Mi Hee Lim
- Department of Chem., KAIST, Daejeon 34141, Republic of Korea.
| | - Cheal Kim
- Department of Fine Chem., Seoul National Univ. of Sci. and Tech. (SNUT), Seoul 01811, Republic of Korea.
| |
Collapse
|
39
|
Aono S, Nakajima H. Transcriptional Regulation of Gene Expression by Metalloproteins. PROGRESS IN REACTION KINETICS AND MECHANISM 2019. [DOI: 10.3184/007967400103165128] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
FNR and SoxR are transcriptional regulators containing an iron–sulfur cluster. The iron–sulfur cluster in FNR acts as an oxygen sensor by reacting with oxygen. The structural change of the iron–sulfur cluster takes place when FNR senses oxygen, which regulates the transcriptional regulator activity of FNR through the change of the quaternary structure. SoxR contains the [2Fe–2S] cluster that regulates the transcriptional activator activity of SoxR. Only the oxidized SoxR containing the [2Fe–2S]2+ cluster is active as the transcriptional activator. CooA is a transcriptional activator containing a protoheme that acts as a CO sensor. CO is a physiological effector of CooA and regulates the transcriptional activator activity of CooA. In this review, the biochemical and biophysical properties of FNR, SoxR, and CooA are described.
Collapse
Affiliation(s)
- Shigetoshi Aono
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Tatsunokuchi, Ishikawa 923-1292, Japan
| | - Hiroshi Nakajima
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Tatsunokuchi, Ishikawa 923-1292, Japan
| |
Collapse
|
40
|
Huang X, Li Z, Wu J, Hang Y, Wang H, Yuan L, Chen H. Small addition of Zn 2+ in Ca 2+@DNA results in elevated gene transfection by aminated PGMA-modified silicon nanowire arrays. J Mater Chem B 2019; 7:566-575. [PMID: 32254790 DOI: 10.1039/c8tb03045f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Gene therapy, a promising and effective treatment, has ignited new hope in overcoming difficult-to-cure diseases. The key question in gene therapy is how to efficiently and safely deliver exogenous nucleic acids into the nuclei of target cells. To achieve stable, efficient and safe gene transfer and to ensure efficiency of gene transfer into cell nuclei, a zinc ion-assisted gene delivery nanosystem was proposed in the present study by loading a low concentration of Zn2+ in Ca2+@DNA nanoparticles on ethanolamine-functionalized poly(glycidyl methacrylate) (PGEA)-modified SiNWAs (Zn2+/Ca2+@DNA + SN-PGEA). The results showed that with the help of Zn ions, this composite nanosystem could promote more DNA in the cell nuclei and thus dramatically increased the transfection efficiency by as much as 7-fold. The nanosystem with 0.2 mM Zn2+, 100 mM Ca2+ and PGEA modification on SiNWAs displayed the highest transfection efficiency and good biocompatibility. This new composite nanosystem will have great potential in gene transfection for biomedical research.
Collapse
Affiliation(s)
- Xuejin Huang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, P. R. China.
| | | | | | | | | | | | | |
Collapse
|
41
|
Optical sensors for detection of nano-molar Zn2+ in aqueous medium: Direct evidence of probe- Zn2+ binding by single crystal X-ray structures. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
42
|
MiRNA-target interactions in osteogenic signaling pathways involving zinc via the metal regulatory element. Biometals 2018; 32:111-121. [PMID: 30564968 DOI: 10.1007/s10534-018-00162-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 12/04/2018] [Indexed: 01/11/2023]
Abstract
Adequate zinc nutriture is necessary for normal bone growth and development, though the precise mechanisms for zinc-mediated bone growth remain poorly defined. A key transcription factor activated by zinc is metal response element-binding transcription factor 1 (MTF-1), which binds to the metal regulatory element (MRE). We hypothesize that MREs will be found upstream of miRNA genes as well as miRNA target genes in the following bone growth and development signaling pathways: TGF-β, MAPK, and Wnt. A Bioconductor-based workflow in R was designed to identify interactions between MREs, miRNAs, and target genes. MRE sequences were found upstream from 64 mature miRNAs that interact with 213 genes which have MRE sequences in their own promoter regions. MAPK1 exhibited the most miRNA-target interactions (MTIs) in the TGF-β and MAPK signaling pathways; CCND2 exhibited the most interactions in the Wnt signaling pathway. Hsa-miR-124-3p exhibited the most MTIs in the TGF-β and MAPK signaling pathways; hsa-miR-20b-5p exhibited the most MTIs in the Wnt signaling pathway. MYC and hsa-miR-34a-5p were shared between all three signaling pathways, also forming an MTI unit. JUN exhibited the most protein-protein interactions, followed by MAPK8. These in silico data support the hypothesis that intracellular zinc status plays a role in osteogenesis through the transcriptional regulation of miRNA genes via the zinc/MTF-1/MRE complex.
Collapse
|
43
|
A ratiometric fluorescent core-shell nanoprobe for sensing and imaging of zinc(II) in living cell and zebrafish. Mikrochim Acta 2018; 185:523. [DOI: 10.1007/s00604-018-3066-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/20/2018] [Indexed: 12/29/2022]
|
44
|
Novel thiophene-based colorimetric and fluorescent turn-on sensor for highly sensitive and selective simultaneous detection of Al 3+ and Zn 2+ in water and food samples and its application in bioimaging. Anal Chim Acta 2018; 1049:196-212. [PMID: 30612651 DOI: 10.1016/j.aca.2018.10.043] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/02/2018] [Accepted: 10/12/2018] [Indexed: 12/23/2022]
Abstract
A novel bifunctional thiophene-based Schiff base TS as a colorimetric and fluorescent turn-on sensor for rapid and simultaneous detection of Al3+ and Zn2+ ions with high selectivity and sensitivity has been developed. The sensor shows remarkable fluorescence enhancement response for Al3+ and Zn2+ over a broad pH range with good anti-interference capability, which accompanied with an obvious color change easily detected by naked eyes. Sensor TS can detect as low as 3.7 × 10-9 M for Al3+ and 3.0 × 10-8 M for Zn2+, whereas respective association constants are 1.16 × 104 M-1 and 2.08 × 104 M-1. With the help of fluorescence titration and Job's plot, the stoichiometric ratio of TS with Al3+/Zn2+ was determined to be 1:1. The sensing mechanism of sensor TS with Al3+/Zn2+ based on the chelation-enhanced fluorescence (CHEF) was analyzed in detail through 1H NMR titration, FTIR, HRMS and DFT studies. Moreover, sensor TS has been applied to the detection of Al3+ and Zn2+ in real environmental water and food samples as well as the filter paper-based test strips. Furthermore, sensor TS has good cell-permeability and can be used to selectively sense intracellular Al3+ and Zn2+ by bioimaging.
Collapse
|
45
|
Mladěnka P, Hrdina R, Hübl M, Šimůnek T. The Fate of Iron in The Organism and Its Regulatory Pathways. ACTA MEDICA (HRADEC KRÁLOVÉ) 2018. [DOI: 10.14712/18059694.2018.40] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Iron is an essential element involved in many life-necessary processes. Interestingly, in mammals there is no active excretion mechanism for iron. Therefore iron kinetics has to be meticulously regulated. The most important step for regulation of iron kinetics is absorption. The absorption takes place in small intestine and it is implicated that it requires several proteins. Iron is then released from enterocytes into the circulation and delivered to the cells. Iron movement inside the cell is only partially elucidated and its traffic to mitochondia is not known. Surprisingly, the regulation of various proteins related to iron kinetics and energy metabolism at the molecular level is better described. On contrary, the complex control of iron absorption cannot be fully explicated with present knowledge.
Collapse
|
46
|
Francis M, Grider A. Bioinformatic analysis of the metal response element and zinc-dependent gene regulation via the metal response element-binding transcription factor 1 in Caco-2 cells. Biometals 2018; 31:639-646. [PMID: 29767398 DOI: 10.1007/s10534-018-0115-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 05/13/2018] [Indexed: 10/16/2022]
Abstract
The purpose of this study was to determine the correlation between the position or number of metal regulatory elements (MREs) near gene transcriptional or translational start sites, and the strength of metal response element-binding transcription factor 1 (MTF-1) regulation. A secondary analysis was performed in silico on published results measuring the effects of Zn and MTF-1 on transcriptional regulation of genes (n = 120) in the Caco-2 cell line. MRE sequence variations throughout the human genome were sorted using a position weight matrix. Three null hypotheses (H0) were tested: (1) there is no correlation between the number of MREs and MTF-1 transcriptional strength, (2) there is no correlation between the distance of the MRE upstream from the transcriptional start site (TSS) and MTF-1 transcriptional strength, and (3) there is no correlation between the distance of the MRE downstream from the translational start site (TrSS) and MTF-1 transcriptional strength. Spearman correlation was used to test for significance (p < 0.05). From our results we rejected the first H0; we observed a significant correlation between the total number of MRE sequences - 7Kbp upstream from the TSS, within the 5' untranslated region, and + 1Kbp downstream from the TrSS, versus the strength of MTF-1 regulation (r = 0.202; p = 0.027). The second and third H0 were accepted. These results expand our understanding of the role of the MRE in Zn-dependent gene regulation. The data indicate that Zn influences the transcriptional control of gene expression beyond maintaining intracellular Zn homeostasis.
Collapse
Affiliation(s)
- Michael Francis
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Arthur Grider
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA.
| |
Collapse
|
47
|
Luo W, Liu M, Yang T, Yang X, Wang Y, Xiang H. Fluorescent Zn II Chemosensor Mediated by a 1,8-Naphthyridine Derivative and It's Photophysical Properties. ChemistryOpen 2018; 7:639-644. [PMID: 30151335 PMCID: PMC6104432 DOI: 10.1002/open.201800083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Indexed: 01/29/2023] Open
Abstract
One of the greatest challenges in using fluorescent chemosensors for highly selective and sensitive transition-metal ions is finding an efficient and simple method for its synthesis. In this study, a highly efficient fluorescence chemosensor for ZnII was developed from N-Boc-L-proline modified 1,8-naphthyridine. The fluorescence intensity of the chemosensor was increased significantly only in the presence of ZnII ion which provided a perceived color change for rapid visual sensing, while other metal ions showed fluorescence quenching or little changes. It was worth noting that the chemosensor L distinguished ZnII from CdII commonly having similar properties. The solvent effect and possible bonding mode for fluorescence enhancement have been also discussed. Results of this study indicated that the Boc-group in l-proline significantly improved the sensitivity and selectivity for ZnII detection performance, as confirmed by comparison experiments and time dependent-density functional theory (TD-DFT) calculations.
Collapse
Affiliation(s)
- Wenxiu Luo
- College of Chemistry and Materials ScienceSichuan Normal UniversityChengdu610068P.R. China
| | - Mengjiao Liu
- College of Chemistry and Materials ScienceSichuan Normal UniversityChengdu610068P.R. China
| | - Ting Yang
- College of Chemistry and Materials ScienceSichuan Normal UniversityChengdu610068P.R. China
| | - Xia Yang
- College of Chemistry and Materials ScienceSichuan Normal UniversityChengdu610068P.R. China
| | - Yi Wang
- College of Chemistry and Materials ScienceSichuan Normal UniversityChengdu610068P.R. China
| | - Haifeng Xiang
- College of ChemistrySichuan UniversityChengdu610041P.R. China
| |
Collapse
|
48
|
Convergent Use of Heptacoordination for Cation Selectivity by RNA and Protein Metalloregulators. Cell Chem Biol 2018; 25:962-973.e5. [PMID: 29805037 DOI: 10.1016/j.chembiol.2018.04.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/13/2018] [Accepted: 04/14/2018] [Indexed: 11/23/2022]
Abstract
The large yybP-ykoY family of bacterial riboswitches is broadly distributed phylogenetically. Previously, these gene-regulatory RNAs were proposed to respond to Mn2+. X-ray crystallography revealed a binuclear cation-binding pocket. This comprises one hexacoordinate site, with six oxygen ligands, which preorganizes the second, with five oxygen and one nitrogen ligands. The relatively soft nitrogen ligand was proposed to confer affinity for Mn2+, but how this excludes other soft cations remained enigmatic. By subjecting representative yybP-ykoY riboswitches to diverse cations in vitro, we now find that these RNAs exhibit limited transition metal ion selectivity. Among the cations tested, Cd2+ and Mn2+ bind most tightly, and comparison of three new Cd2+-bound crystal structures suggests that these riboswitches achieve selectivity by enforcing heptacoordination (favored by high-spin Cd2+ and Mn2+, but otherwise uncommon) in the softer site. Remarkably, the Cd2+- and Mn2+-selective bacterial transcription factor MntR also uses heptacoordination within a binuclear site to achieve selectivity.
Collapse
|
49
|
Wu G, Gao Q, Li M, Tang X, Lai KWC, Tong Q. A ratiometric probe based on coumarin-quinoline for highly selective and sensitive detection of Zn2+ ions in living cells. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
50
|
Lee H, Hong KI, Jang WD. Design and applications of molecular probes containing porphyrin derivatives. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.06.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|