1
|
Kusumkar VV, Galamboš M, Viglašová E, Daňo M, Šmelková J. Ion-Imprinted Polymers: Synthesis, Characterization, and Adsorption of Radionuclides. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1083. [PMID: 33652580 PMCID: PMC7956459 DOI: 10.3390/ma14051083] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/09/2021] [Accepted: 02/22/2021] [Indexed: 12/21/2022]
Abstract
Growing concern over the hazardous effect of radionuclides on the environment is driving research on mitigation and deposition strategies for radioactive waste management. Currently, there are many techniques used for radionuclides separation from the environment such as ion exchange, solvent extraction, chemical precipitation and adsorption. Adsorbents are the leading area of research and many useful materials are being discovered in this category of radionuclide ion separation. The adsorption technologies lack the ability of selective removal of metal ions from solution. This drawback is eliminated by the use of ion-imprinted polymers, these materials having targeted binding sites for specific ions in the media. In this review article, we present recently published literature about the use of ion-imprinted polymers for the adsorption of 10 important hazardous radionuclides-U, Th, Cs, Sr, Ce, Tc, La, Cr, Ni, Co-found in the nuclear fuel cycle.
Collapse
Affiliation(s)
- Vipul Vilas Kusumkar
- Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina Ilkovicova 6, 842 15 Bratislava, Slovakia;
| | - Michal Galamboš
- Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina Ilkovicova 6, 842 15 Bratislava, Slovakia;
| | - Eva Viglašová
- Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina Ilkovicova 6, 842 15 Bratislava, Slovakia;
| | - Martin Daňo
- Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehová 7, 115 19 Prague, Czech Republic;
| | - Jana Šmelková
- Department of Administrative Law and Environmental Law, Faculty of Law, Comenius University in Bratislava, Safarikovo namestie 6, 810 00 Bratislava, Slovakia;
| |
Collapse
|
2
|
Chen TY, Cheng WJ, Horng JC, Hsu HY. Artificial peptide-controlled protein release of Zn2+-triggered, self-assembled histidine-tagged protein microparticle. Colloids Surf B Biointerfaces 2020; 187:110644. [DOI: 10.1016/j.colsurfb.2019.110644] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 09/19/2019] [Accepted: 11/11/2019] [Indexed: 12/19/2022]
|
3
|
Li S, Li J, Ma X, Pang C, Yin G, Luo J. Molecularly imprinted electroluminescence switch sensor with a dual recognition effect for determination of ultra-trace levels of cobalt (II). Biosens Bioelectron 2019; 139:111321. [DOI: 10.1016/j.bios.2019.111321] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/06/2019] [Accepted: 05/12/2019] [Indexed: 10/26/2022]
|
4
|
Durham T, Zander D, Stomeo N, Minnion M, Hogarth G, Feelisch M, Singer M, Dyson A. Chemistry, pharmacology, and cellular uptake mechanisms of thiometallate sulfide donors. Br J Pharmacol 2019; 177:745-756. [PMID: 30924528 DOI: 10.1111/bph.14670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/28/2019] [Accepted: 03/10/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE A clinical need exists for targeted, safe, and effective sulfide donors. We recently reported that ammonium tetrathiomolybdate (ATTM) belongs to a new class of sulfide-releasing drugs. Here, we investigated the cellular uptake mechanisms of this drug class compared to sodium hydrosulfide (NaHS) and the effects of a thiometallate tungsten congener of ATTM, ammonium tetrathiotungstate (ATTT). EXPERIMENTAL APPROACH In vitro H2 S release was determined by headspace gas sampling of vials containing dissolved thiometallates. Thiometallate and NaHS bioactivity was assessed by spectrophotometry-derived sulfhaemoglobin formation. Cellular uptake dependence on the anion exchange protein (AE)-1 was investigated in human red blood cells. ATTM/glutathione interactions were assessed by LC-MS/MS. Rodent pharmacokinetic and pharmacodynamic studies focused on haemodynamics and inhibition of aerobic respiration. KEY RESULTS ATTM and ATTT both exhibit temperature-, pH-, and thiol-dependence of sulfide release. ATTM/glutathione interactions revealed the generation of inorganic and organic persulfides and polysulfides. ATTM showed greater ex vivo and in vivo bioactivity over ATTT, notwithstanding similar pharmacokinetic profiles. Cellular uptake mechanisms of the two drug classes are distinct; thiometallates show dependence on AE-1, while hydrosulfide itself was unaffected by inhibition of this pathway. CONCLUSIONS AND IMPLICATIONS The cellular uptake of thiometallates relies upon a plasma membrane ion channel. This advances our pharmacological knowledge of this drug class, and further supports their utility as cell-targeted sulfide donor therapies. Our results indicate that, as a more stable form, ATTT is better suited as a copper chelator. ATTM, a superior sulfide donor, may additionally participate in intracellular redox recycling. LINKED ARTICLES This article is part of a themed section on Hydrogen Sulfide in Biology & Medicine. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.4/issuetoc.
Collapse
Affiliation(s)
- Tom Durham
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - David Zander
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - Niccolò Stomeo
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - Magdalena Minnion
- Clinical and Experimental Sciences, Faculty of Medicine, Southampton General Hospital and Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Graeme Hogarth
- Department of Chemistry, King's College London, London, UK
| | - Martin Feelisch
- Clinical and Experimental Sciences, Faculty of Medicine, Southampton General Hospital and Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Mervyn Singer
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - Alex Dyson
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| |
Collapse
|
5
|
Wang H, Xu Y, Rao L, Yang C, Yuan H, Gao T, Chen X, Sun H, Xian M, Liu C, Liu C. Ratiometric Fluorescent Probe for Monitoring Endogenous Methylglyoxal in Living Cells and Diabetic Blood Samples. Anal Chem 2019; 91:5646-5653. [DOI: 10.1021/acs.analchem.8b05426] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Huiling Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| | - Yulin Xu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| | - Li Rao
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| | - Chuntao Yang
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 510182, China
| | - Hong Yuan
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| | - Tingjuan Gao
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| | - Xin Chen
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| | - Hongyan Sun
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Ming Xian
- Department of Chemistry, Washington State University, Pullman, Washington 99164, United States
| | - Chunrong Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| | - Changlin Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Chemical Biology Center, College of Chemistry, and International Joint Research Center for Intelligent Biosensing Technology and Health, Central China Normal University, Wuhan, 430079 Hubei, China
| |
Collapse
|
6
|
Cheng D, Wang X, Tang J, Zhang X, Wang C, Li H. Characterization of the binding mechanism and conformational changes of bovine serum albumin upon interaction with aluminum-maltol: a spectroscopic and molecular docking study. Metallomics 2019; 11:1625-1634. [DOI: 10.1039/c9mt00088g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The widespread use of aluminum in the treatment of drinking water, food, agriculture and pharmaceuticals has greatly increased the risk of human exposure to excess aluminum, which is a serious health hazard to human beings.
Collapse
Affiliation(s)
- Dai Cheng
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology, Tianjin
- Tianjin
- China
- Beijing Engineering and Technology Research Center of Food Additives
| | - Xuerui Wang
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology, Tianjin
- Tianjin
- China
- Demonstration Center of Food Quality and Safety Testing Technology
| | - Jinlei Tang
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology, Tianjin
- Tianjin
- China
- Demonstration Center of Food Quality and Safety Testing Technology
| | - Xinyu Zhang
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology, Tianjin
- Tianjin
- China
- Demonstration Center of Food Quality and Safety Testing Technology
| | - Chunling Wang
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology, Tianjin
- Tianjin
- China
- Demonstration Center of Food Quality and Safety Testing Technology
| | - He Li
- Beijing Engineering and Technology Research Center of Food Additives
- Beijing Technology & Business University (BTBU)
- Beijing 100048
- China
| |
Collapse
|
7
|
Chang AS, Pintauer T, Basu P, Eckenhoff WT. Structural and Electronic Investigation of Tetrachalcogenidomolybdate Dianions. ChemistrySelect 2018. [DOI: 10.1002/slct.201800506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alison S. Chang
- Department of Chemistry Rhodes College 2000 N. Parkway Memphis TN 38112
| | - Tomislav Pintauer
- Department of Chemistry and Biochemistry Duquesne University 600 Forbes Ave., 308 Mellon Hall Pittsburgh PA 15282
| | - Partha Basu
- Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis 420 N. Blackford St. Indianapolis IN 46202
| | | |
Collapse
|
8
|
Maiti BK, Almeida RM, Maia LB, Moura I, Moura JJG. Insights into the Molybdenum/Copper Heterometallic Cluster Assembly in the Orange Protein: Probing Intermolecular Interactions with an Artificial Metal-Binding ATCUN Tag. Inorg Chem 2017; 56:8900-8911. [PMID: 28742344 DOI: 10.1021/acs.inorgchem.7b00840] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Orange protein (ORP) is a small bacterial protein, of unknown function, that contains a unique molybdenum/copper heterometallic cluster, [S2MoVIS2CuIS2MoVIS2]3- (Mo/Cu), non-covalently bound. The native cluster can be reconstituted in a protein-assisted mode by the addition of CuII plus tetrathiomolybdate to apo-ORP under controlled conditions. In the work described herein, we artificially inserted the ATCUN ("amino terminus Cu and Ni") motif in the Desulfovibrio gigas ORP (Ala1Ser2His3 followed by the native amino acid residues; modified protein abbreviated as ORP*) to increase our understanding of the Mo/Cu cluster assembly in ORP. The apo-ORP* binds CuII in a 1:1 ratio to yield CuII-ORP*, as clearly demonstrated by EPR (g||,⊥ = 2.183, 2.042 and ACu||,⊥ = 207 × 10-4 cm-1, 19 × 10-4 cm-1) and UV-visible spectroscopies (typical d-d transition bands at 520 nm, ε = 90 M-1 cm-1). The 1H NMR spectrum shows that His3 and His53 are significantly affected upon the addition of the CuII. The X-ray structure shows that these two residues are very far apart (Cα-Cα ≈ 27.9 Å), leading us to suggest that the metal-induced NMR perturbations are due to the interaction of two protein molecules with a single metal ion. Docking analysis supports the metal-mediated dimer formation. The subsequent tetrathiomolybdate binding, to yield the native Mo/Cu cluster, occurs only upon addition of dithiothreitol, as shown by UV-visible and NMR spectroscopies. Additionally, 1H NMR of AgI-ORP* (AgI used as a surrogate of CuI) showed that AgI strongly binds to a native methionine sulfur atom rather than to the ATCUN site, suggesting that CuII and CuI have two different binding sites in ORP*. A detailed mechanism for the formation of the Mo/Cu cluster is discussed, suggesting that CuII is reduced to CuI and transferred from the ATCUN motif to the methionine site; finally, CuI is transferred to the cluster-binding region, upon the interaction of two protein molecules. This result may suggest that copper trafficking is triggered by redox-dependent coordination properties of copper in a trafficking pathway.
Collapse
Affiliation(s)
- Biplab K Maiti
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa , 2829-516 Caparica, Portugal
| | - Rui M Almeida
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa , 2829-516 Caparica, Portugal
| | - Luisa B Maia
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa , 2829-516 Caparica, Portugal
| | - Isabel Moura
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa , 2829-516 Caparica, Portugal
| | - José J G Moura
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa , 2829-516 Caparica, Portugal
| |
Collapse
|
9
|
Dong X, Zhang Z, Zhao J, Lei J, Chen Y, Li X, Chen H, Tian J, Zhang D, Liu C, Liu C. The rational design of specific SOD1 inhibitors via copper coordination and their application in ROS signaling research. Chem Sci 2016; 7:6251-6262. [PMID: 30034766 PMCID: PMC6024207 DOI: 10.1039/c6sc01272h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 06/15/2016] [Indexed: 12/12/2022] Open
Abstract
Efficient methods for the regulation of intracellular O2˙- and H2O2 levels, without altering intracellular processes, are urgently required for the rapidly growing interest in ROS signaling, as ROS signaling has been confirmed to be involved in a series of basic cellular processes including proliferation, differentiation, growth and migration. Intracellular H2O2 is formed mainly via the catalytic dismutation of O2˙- by SODs including SOD1, SOD2 and SOD3. Thus, the intracellular levels of O2˙- and H2O2 can directly be controlled through regulating SOD1 activity. Here, based on the active site structure and catalytic mechanism of SOD1, we developed a new type of efficient and specific SOD1 inhibitors which can directly change the intracellular levels of H2O2 and O2˙-. These inhibitors inactivate intracellular SOD1 via localization into the SOD1 active site, thereby coordinating to the Cu2+ in the active site of SOD1, blocking the access of O2˙- to Cu2+, and breaking the Cu2+/Cu+ catalytic cycle essential for O2˙- dismutation. The reduced ERK1/2 phosphorylation induced by the specific SOD1 inactivation-mediated decrease of intracellular H2O2 levels reveals the potential of these specific SOD1 inhibitors in understanding and regulating ROS signaling. Furthermore, these specific SOD1 inhibitors also lead to selectively elevated cancer cell apoptosis, indicating that these kinds of SOD1 inhibitors might be candidates for lead compounds for cancer treatment.
Collapse
Affiliation(s)
- Xiongwei Dong
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Zhe Zhang
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Jidong Zhao
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Juan Lei
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Yuanyuan Chen
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Xiang Li
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Huanhuan Chen
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Junli Tian
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Dan Zhang
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Chunrong Liu
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| | - Changlin Liu
- Key Laboratory of Pesticide & Chemical Biology , Ministry of Education , School of Chemistry , Central China Normal University , Wuhan 430079 , Hubei , China . ;
| |
Collapse
|
10
|
Synthetic fluorescent probes to map metallostasis and intracellular fate of zinc and copper. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.11.012] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Orange protein from Desulfovibrio alaskensis G20: insights into the Mo–Cu cluster protein-assisted synthesis. J Biol Inorg Chem 2016; 21:53-62. [DOI: 10.1007/s00775-015-1323-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/15/2015] [Indexed: 10/22/2022]
|
12
|
Marx A, Galilee M, Alian A. Zinc enhancement of cytidine deaminase activity highlights a potential allosteric role of loop-3 in regulating APOBEC3 enzymes. Sci Rep 2015; 5:18191. [PMID: 26678087 PMCID: PMC4683357 DOI: 10.1038/srep18191] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 11/16/2015] [Indexed: 12/25/2022] Open
Abstract
The strong association of APOBEC3 cytidine deaminases with somatic mutations leading to cancers accentuates the importance of their tight intracellular regulation to minimize cellular transformations. We reveal a novel allosteric regulatory mechanism of APOBEC3 enzymes showing that APOBEC3G and APOBEC3A coordination of a secondary zinc ion, reminiscent to ancestral deoxycytidylate deaminases, enhances deamination activity. Zinc binding is pinpointed to loop-3 which whilst highly variable harbors a catalytically essential and spatially conserved asparagine at its N-terminus. We suggest that loop-3 may play a general role in allosterically tuning the activity of zinc-dependent cytidine deaminase family members.
Collapse
Affiliation(s)
- Ailie Marx
- Faculty of Biology, Technion - Israel Institute of Technology, Haifa 320003, Israel
| | - Meytal Galilee
- Faculty of Biology, Technion - Israel Institute of Technology, Haifa 320003, Israel
| | - Akram Alian
- Faculty of Biology, Technion - Israel Institute of Technology, Haifa 320003, Israel
| |
Collapse
|
13
|
Pereira MM, Pedro SN, Quental MV, Lima ÁS, Coutinho JAP, Freire MG. Enhanced extraction of bovine serum albumin with aqueous biphasic systems of phosphonium- and ammonium-based ionic liquids. J Biotechnol 2015; 206:17-25. [PMID: 25865275 DOI: 10.1016/j.jbiotec.2015.03.028] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/12/2015] [Accepted: 03/28/2015] [Indexed: 11/16/2022]
Abstract
Novel aqueous biphasic systems (ABS) composed of phosphonium- or ammonium-based ionic liquids (ILs), combined with a buffered aqueous solution of potassium citrate/citric acid (pH=7.0), were investigated for the extraction of proteins. For that purpose, the phase diagrams, tie-lines and tie-line lengths were determined at 25 °C, and the performance of these ABS for the extraction of bovine serum albumin (BSA) was then evaluated. The obtained results reveal that, with the exception of the more hydrophobic ILs, most of the systems investigated allow the complete extraction of BSA for the IL-rich phase in a single-step. These remarkable extraction efficiencies are far superior to those afforded by more conventional extraction systems previously reported. The composition of the biphasic systems, i.e., the amount of phase-forming components, was also investigated aiming at reducing the overall costs of the process without losing efficiency on the protein extraction. It is shown that the extraction efficiencies of BSA are maintained at 100% up to high protein concentrations (at least up to 10 g L(-1)). The recovery of the BSA from the IL-rich phase by dialysis is also shown in addition to the demonstration of the IL recyclability and reusability, at least for 3 times. In the sequential three-step extractions (BSA recovery/IL reusability), the extraction efficiencies of BSA for the IL-rich phase were maintained at 100%. For the improved ABS, the preservation of the protein native conformation was confirmed by Size Exclusion High-Performance Liquid Chromatography (used also as the quantification method) and by Fourier Transform Infra-Red spectroscopy. According to the results herein reported, ABS composed of phosphonium- or ammonium-based ILs and a biodegradable organic salt represent an alternative and remarkable platform for the extraction of BSA and may be extended to other proteins of interest.
Collapse
Affiliation(s)
- Matheus M Pereira
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sónia N Pedro
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria V Quental
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Álvaro S Lima
- Programa de Pós-Graduação em Engenharia de Processos, Universidade Tiradentes, Farolândia, CEP 49032-490 Aracaju, SE, Brazil
| | - João A P Coutinho
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| |
Collapse
|
14
|
Mo–Cu metal cluster formation and binding in an orange protein isolated from Desulfovibrio gigas. J Biol Inorg Chem 2014; 19:605-14. [DOI: 10.1007/s00775-014-1107-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 01/09/2014] [Indexed: 01/02/2023]
|
15
|
Near-infrared fluorescent sensor for in vivo copper imaging in a murine Wilson disease model. Proc Natl Acad Sci U S A 2012; 109:2228-33. [PMID: 22308360 DOI: 10.1073/pnas.1113729109] [Citation(s) in RCA: 151] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Copper is an essential metal nutrient that is tightly regulated in the body because loss of its homeostasis is connected to severe diseases such as Menkes and Wilson diseases, Alzheimer's disease, prion disorders, and amyotrophic lateral sclerosis. The complex relationships between copper status and various stages of health and disease remain challenging to elucidate, in part due to a lack of methods for monitoring dynamic changes in copper pools in whole living organisms. Here we present the synthesis, spectroscopy, and in vivo imaging applications of Coppersensor 790, a first-generation fluorescent sensor for visualizing labile copper pools in living animals. Coppersensor 790 combines a near-infrared emitting cyanine dye with a sulfur-rich receptor to provide a selective and sensitive turn-on response to copper. This probe is capable of monitoring fluctuations in exchangeable copper stores in living cells and mice under basal conditions, as well as in situations of copper overload or deficiency. Moreover, we demonstrate the utility of this unique chemical tool to detect aberrant increases in labile copper levels in a murine model of Wilson disease, a genetic disorder that is characterized by accumulation of excess copper. The ability to monitor real-time copper fluxes in living animals offers potentially rich opportunities to examine copper physiology in health and disease.
Collapse
|
16
|
Manocha B, Margaritis A. A novel Method for the selective recovery and purification of γ-polyglutamic acid fromBacillus licheniformisfermentation broth. Biotechnol Prog 2010; 26:734-42. [DOI: 10.1002/btpr.370] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
17
|
Alvarez HM, Xue Y, Robinson CD, Canalizo-Hernández MA, Marvin RG, Kelly RA, Mondragón A, Penner-Hahn JE, O'Halloran TV. Tetrathiomolybdate inhibits copper trafficking proteins through metal cluster formation. Science 2009; 327:331-4. [PMID: 19965379 DOI: 10.1126/science.1179907] [Citation(s) in RCA: 128] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Tetrathiomolybdate (TM) is an orally active agent for treatment of disorders of copper metabolism. Here we describe how TM inhibits proteins that regulate copper physiology. Crystallographic results reveal that the surprising stability of the drug complex with the metallochaperone Atx1 arises from formation of a sulfur-bridged copper-molybdenum cluster reminiscent of those found in molybdenum and iron sulfur proteins. Spectroscopic studies indicate that this cluster is stable in solution and corresponds to physiological clusters isolated from TM-treated Wilson's disease animal models. Finally, mechanistic studies show that the drug-metallochaperone inhibits metal transfer functions between copper-trafficking proteins. The results are consistent with a model wherein TM can directly and reversibly down-regulate copper delivery to secreted metalloenzymes and suggest that proteins involved in metal regulation might be fruitful drug targets.
Collapse
Affiliation(s)
- Hamsell M Alvarez
- The Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Khan G, Merajver S. Copper chelation in cancer therapy using tetrathiomolybdate: an evolving paradigm. Expert Opin Investig Drugs 2009; 18:541-8. [DOI: 10.1517/13543780902845622] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Gazala Khan
- University of Michigan, 1500E Medical Center Drive, C409 MIB SPC 5848, Ann Arbor, Michigan, USA ;
| | - Sofia Merajver
- University of Michigan, 1500E Medical Center Drive, C409 MIB SPC 5848, Ann Arbor, Michigan, USA ;
| |
Collapse
|
19
|
Tamura M, Ochiai K. Zinc and copper play a role in coaggregation inhibiting action ofPorphyromonas gingivalis. ACTA ACUST UNITED AC 2009; 24:56-63. [DOI: 10.1111/j.1399-302x.2008.00476.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|