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Xing S, Zhang K, Hao Z, Zhang X, Chen B. Arbuscular Mycorrhizal Fungi Alter Arsenic Translocation Characteristics of Iris tectorum Maxim. J Fungi (Basel) 2023; 9:998. [PMID: 37888254 PMCID: PMC10607928 DOI: 10.3390/jof9100998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/28/2023] [Accepted: 10/07/2023] [Indexed: 10/28/2023] Open
Abstract
Arsenic (As) pollution in wetlands, mainly as As(III) and As(V), has threatened wetland plant growth. It has been well documented that arbuscular mycorrhizal (AM) fungi can alleviate As stress in terrestrial plants. However, whether AM fungi can protect natural wetland plants from As stress remains largely unknown. Therefore, three hydroponic experiments were conducted in which Iris tectorum Maxim. (I. tectorum) plants were exposed to As(III) or As(V) stresses, to investigate the effects of mycorrhizal inoculation on As uptake, efflux, and accumulation. The results suggested that short-term kinetics of As influx in I. tectorum followed the Michaelis-Menten function. Mycorrhizal inoculation decreased the maximum uptake rate (Vmax) and Michaelis constant (Km) of plants for As(III) influx, while yielding no significant difference in As(V) influx. Generally, mycorrhizal plants released more As into environments after 72 h efflux, especially under As(V) exposure. Moreover, mycorrhizal plants exhibited potential higher As accumulation capacity, probably due to more active As reduction, which was one of the mechanisms through which AM fungi mitigate As phytotoxicity. Our study has revealed the role of aerobic microorganism AM fungi in regulating As translocation in wetland plants and supports the involvement of AM fungi in alleviating plant As stress in anaerobic wetlands.
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Affiliation(s)
- Shuping Xing
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; (S.X.); (K.Z.); (Z.H.); (B.C.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kangxu Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; (S.X.); (K.Z.); (Z.H.); (B.C.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhipeng Hao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; (S.X.); (K.Z.); (Z.H.); (B.C.)
| | - Xin Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; (S.X.); (K.Z.); (Z.H.); (B.C.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baodong Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; (S.X.); (K.Z.); (Z.H.); (B.C.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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Salih KAM, Zhou K, Hamza MF, Mira H, Wei Y, Ning S, Guibal E, Salem WM. Phosphonation of Alginate-Polyethyleneimine Beads for the Enhanced Removal of Cs(I) and Sr(II) from Aqueous Solutions. Gels 2023; 9:gels9020152. [PMID: 36826322 PMCID: PMC9957171 DOI: 10.3390/gels9020152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Although Cs(I) and Sr(II) are not strategic and hazardous metal ions, their recovery from aqueous solutions is of great concern for the nuclear industry. The objective of this work consists of designing a new sorbent for the simultaneous recovery of these metals with selectivity against other metals. The strategy is based on the functionalization of algal/polyethyleneimine hydrogel beads by phosphonation. The materials are characterized by textural, thermo-degradation, FTIR, elemental, titration, and SEM-EDX analyses to confirm the chemical modification. To evaluate the validity of this modification, the sorption of Cs(I) and Sr(II) is compared with pristine support under different operating conditions: the pH effect, kinetics, and isotherms are investigated in mono-component and binary solutions, before investigating the selectivity (against competitor metals) and the possibility to reuse the sorbent. The functionalized sorbent shows a preference for Sr(II), enhanced sorption capacities, a higher stability at recycling, and greater selectivity against alkali, alkaline-earth, and heavy metal ions. Finally, the sorption properties are compared for Cs(I) and Sr(II) removal in a complex solution (seawater sample). The combination of these results confirms the superiority of phosphonated sorbent over pristine support with promising performances to be further evaluated with effluents containing radionuclides.
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Affiliation(s)
- Khalid A. M. Salih
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Kanggen Zhou
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Mohammed F. Hamza
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
- Nuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, Egypt
- Correspondence: (M.F.H.); (E.G.); Tel.: +20-1116681228 (M.F.H.); +33-(0)466782734 (E.G.)
| | - Hamed Mira
- Nuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, Egypt
| | - Yuezhou Wei
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
- School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shunyan Ning
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
| | - Eric Guibal
- Polymers Composites and Hybrids (PCH), IMT Mines Ales, CEDEX, F-30319 Alès, France
- Correspondence: (M.F.H.); (E.G.); Tel.: +20-1116681228 (M.F.H.); +33-(0)466782734 (E.G.)
| | - Waheed M. Salem
- Medical Labs Department, Faculty of Applied Health Science Technology, Menoufia University, Shebine El-Koam 6131567, Egypt
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Hamza MF, Abu Khoziem HA, Khalafalla MS, Abdellah WM, Zaki DI, Althumayri K, Wei Y. Ecofriendly Composite as a Promising Material for Highly-Performance Uranium Recovery from Different Solutions. Toxics 2022; 10:490. [PMID: 36136455 PMCID: PMC9502357 DOI: 10.3390/toxics10090490] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
The development of new materials based on biopolymers (as renewable resources) is substantial for environmental challenges in the heavy metal and radionuclide ions removal contaminations. Functionalization of chitosan with sulfonic groups was achieved for improving the uranium sorption, not only from slightly acidic leachate, but also for the underground water. The prepared hydrogel based on chitosan was characterized by series of analysis tools for structure elucidation as FTIR spectroscopy, textural properties using nitrogen adsorption method, pHPZC (by pH-drift method), thermogravimetric analysis (TGA), SEM, and SEM-EDX analyses. The sorption was performed toward uranium (VI) ions for adjustment of sorption performances. The optimum sorption was performed at pH 4 (prior to the precipitation pH). The total sorption was achieved within 25 min (relatively fast kinetics) and was fitted by pseudo-first order rate equation (PFORE) and resistance to intraparticle diffusion equation (RIDE). The maximum sorption capacity was around 1.5 mmol U g-1. The sorption isotherms were fitted by Langmuir and Sips equations. Desorption was achieved using 0.3 M HCl solution and the complete desorption was performed in around 15 min of contact. The sorption desorption cycles are relatively stable during 5 cycles with limit decreasing in sorption and desorption properties (around 3 ± 0.2% and 99.8 ± 0.1%, respectively). The sorbent was used for removal of U from acid leachate solution in mining area. The sorbent showed a highly performance for U(VI) removal, which was considered as a tool material for radionuclides removing from aquatic medium.
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Affiliation(s)
- Mohammed F. Hamza
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
- Nuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, Egypt
| | | | | | | | - Doaa I. Zaki
- Nuclear Materials Authority, POB 530, El-Maadi, Cairo 11728, Egypt
| | - Khalid Althumayri
- Department of Chemistry, College of Science, Taibah University, Al-Madinah Al-Munawarah 30002, Saudi Arabia
| | - Yuezhou Wei
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
- School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Wang Q, Kong L, Huang Q, Li H, Wan Y. Uptake and translocation mechanisms of different forms of organic selenium in rice ( Oryza sativa L.). Front Plant Sci 2022; 13:970480. [PMID: 36072317 PMCID: PMC9441932 DOI: 10.3389/fpls.2022.970480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/02/2022] [Indexed: 05/12/2023]
Abstract
Selenium (Se) is an essential trace element for human and animal health, and toward an understanding of the uptake and translocation of Se in plants is important from the perspective of Se biofortification. In this study, we conducted hydroponic experiments to investigate the mechanisms of organic Se [selenomethionine (SeMet) and selenomethionine-oxide (SeOMet)] uptake, translocation, and the interactions between SeMet and SeOMet in rice. We also investigated differences in the dynamics of organic and inorganic Se uptake by rice roots. Concentration-dependent kinetic results revealed that SeMet uptake during a 1 h exposure was 3.19-16.0 times higher than that of three other Se chemical forms, with uptake capacity (Vmax ) values ordered as follows: SeMet>SeOMet>selenite>selenate. Furthermore, time-dependent kinetic analysis revealed that SeMet uptake by roots and content in shoots were initially clearly higher than those of SeOMet, although the differences gradually diminished with prolonged exposure time; while no significant difference was found in the transfer factor of Se from rice roots to shoots between SeMet and SeOMet. Root uptake of SeOMet was significantly inhibited by carbonyl cyanide 3-chlorophenylhydrazone (CCCP) (30.4%), AgNO3 (41.8%), and tetraethylammonium chloride (TEACl) (45.6%), indicating that SeOMet uptake is a metabolically active process, and that it could be mediated via aquaporins and K+ channels. Contrarily, SeMet uptake was insensitive to CCCP, although markedly inhibited by AgNO3 (93.1%), indicating that rice absorbs SeMet primarily via aquaporins. Furthermore, Se uptake and translocation in rice treated simultaneously with both SeMet and SeOMet were considerably lower than those in rice treated with SeMet treatment alone and notably lower than the theoretical quantity, indicating interactions between SeMet and SeOMet. Our findings provide important insights into the mechanisms underlying the uptake and translocation of organic Se within plants.
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Affiliation(s)
- Qi Wang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, China
| | - Lingxuan Kong
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, China
| | - Qingqing Huang
- Innovation Team of Remediation of Heavy Metal-Contaminated Farmlands, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, China
| | - Huafen Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, China
| | - Yanan Wan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, China
- *Correspondence: Yanan Wan,
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Das S, Das A, Mazumder PET, Paul R, Das S. Lead phytoremediation potentials of four aquatic macrophytes under hydroponic cultivation. Int J Phytoremediation 2021; 23:1279-1288. [PMID: 33678068 DOI: 10.1080/15226514.2021.1895714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lead (Pb) is a major toxicological concern of the present day that demands immediate attention. The use of aquatic macrophytes with high Pb tolerance and accumulation may be a very convenient and economically viable solution for remediating Pb. We examined the ability of Salvinia cucullata, Alternanthera sessilis, Lemna minor, and Pistia stratiotes to remove 0.12 mM, 0.24 mM, 0.36 mM, and 0.48 mM Pb for 96-h under hydroponic cultivation system. The plants accumulated variable amounts of Pb: S. cucullata > A. sessilis > P. stratiotes > L. minor, with low mobility of Pb from root to shoot. Lead uptake kinetics were monitored up to 96-h. After 96-h, the uptake efficiency for S. cucullata (98-99%), A. sessilis (79-96%), L. minor (45-79%), and P. stratiotes (40-76%) was noted. For S. cucullata and A. sessilis, an extremely high uptake rate was seen within the initial 24-h of trials, followed by slower uptake till 96-h. P. stratiotes and L. minor worked best at 0.12 mM Pb. Pb-Phytotoxicity became prominent at 0.48 mM exposure with biomass loss and morphological changes. The plants had a quick growth rate, extensive root system, high biomass yield, and the ability to tolerate and accumulate Pb that made them suitable for phytoremediation purposes. NOVELTY STATEMENT: Lead phytoremediation potential of four aquatic macrophytes found in Indian waters was evaluated. These macrophytes, often considered as weeds, could be used for phytoremediation purposes that would turn out to be a sustainable means of the utilization of natural resources in developing countries like India. In this study, not only metal accumulation by plants but also the lead uptake kinetics at several time intervals and valuable growth attributes were estimated to establish the suitability of these plants as probable lead phytoremediators. Two of the plant species, Salvinia cucullata, and Alternanthera sessilis, showed excellent Pb accumulation capacities that had not been reported earlier, to the best of our knowledge. The work is all the more significant as there have been needs for identifying Pb-phytoremediators well suited to native climate and growth conditions that could take up large amounts of metal from the substratum.
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Affiliation(s)
- Suchismita Das
- Aquatic toxicology and Remediation Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Anupam Das
- Aquatic toxicology and Remediation Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Parsha E Tanvir Mazumder
- Aquatic toxicology and Remediation Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Rajashree Paul
- Aquatic toxicology and Remediation Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Swagata Das
- Aquatic toxicology and Remediation Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, India
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Salih KAM, Hamza MF, Mira H, Wei Y, Gao F, Atta AM, Fujita T, Guibal E. Nd(III) and Gd(III) Sorption on Mesoporous Amine-Functionalized Polymer/SiO 2 Composite. Molecules 2021; 26:1049. [PMID: 33671351 PMCID: PMC7922550 DOI: 10.3390/molecules26041049] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
The strong demand for rare-earth elements (REEs) is driven by their wide use in high-tech devices. New processes have to be developed for valorizing low-grade ores or alternative metal sources (such as wastes and spent materials). The present work contributed to the development of new sorbents for the recovery of rare earth ions from aqueous solutions. Functionalized mesoporous silica composite was synthesized by grafting diethylenetriamine onto composite support. The physical and chemical properties of the new sorbent are characterized using BET, TGA, elemental analysis, titration, FTIR, and XPS spectroscopies to identify the reactive groups (amine groups: 3.25 mmol N g-1 and 3.41 by EA and titration, respectively) and their mode of interaction with Nd(III) and Gd(III). The sorption capacity at the optimum pH (i.e., 4) reaches 0.9 mmol Nd g-1 and 1 mmol Gd g-1. Uptake kinetics are modeled by the pseudo-first-order rate equation (equilibrium time: 30-40 min). At pH close to 4-5, the sorbent shows high selectivity for rare-earth elements against alkali-earth elements. This selectivity is confirmed by the efficient recovery of REEs from acidic leachates of gibbsite ore. After elution (using 0.5 M HCl solutions), selective precipitation (using oxalate solutions), and calcination, pure rare earth oxides were obtained. The sorbent shows promising perspective due to its high and fast sorption properties for REEs, good recycling, and high selectivity.
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Affiliation(s)
- Khalid A. M. Salih
- Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; (K.A.M.S.); (F.G.); (T.F.)
| | - Mohammed F. Hamza
- Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; (K.A.M.S.); (F.G.); (T.F.)
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo 11381, Egypt;
| | - Hamed Mira
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo 11381, Egypt;
| | - Yuezhou Wei
- Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; (K.A.M.S.); (F.G.); (T.F.)
- School of Nuclear Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Feng Gao
- Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; (K.A.M.S.); (F.G.); (T.F.)
| | - Ayman M. Atta
- Chemistry Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Toyohisa Fujita
- Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; (K.A.M.S.); (F.G.); (T.F.)
| | - Eric Guibal
- Polymers Composites and Hybrids (PCH), IMT Mines Ales, CEDEX, F-30319 Alès, France
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Mohammad-Beigi H, Scavenius C, Jensen PB, Kjaer-Sorensen K, Oxvig C, Boesen T, Enghild JJ, Sutherland DS, Hayashi Y. Tracing the In Vivo Fate of Nanoparticles with a "Non-Self" Biological Identity. ACS Nano 2020; 14:10666-10679. [PMID: 32806026 DOI: 10.1021/acsnano.0c05178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoparticles can acquire a biomolecular corona with a species-specific biological identity. However, "non-self" incompatibility of recipient biological systems is often not considered, for example, when rodents are used as a model organism for preclinical studies of biomolecule-inspired nanomedicines. Using zebrafish embryos as an emerging model for nanobioimaging, here we unravel the in vivo fate of intravenously injected 70 nm SiO2 nanoparticles with a protein corona preformed from fetal bovine serum (FBS), representing a non-self biological identity. Strikingly rapid sequestration and endolysosomal acidification of nanoparticles with the preformed FBS corona were observed in scavenger endothelial cells within minutes after injection. This led to loss of blood vessel integrity and to inflammatory activation of macrophages over the course of several hours. As unmodified nanoparticles or the equivalent dose of FBS proteins alone failed to induce the observed pathophysiology, this signifies how the corona enriched with a differential repertoire of proteins can determine the fate of the nanoparticles in vivo. Our findings thus reveal the adverse outcome triggered by incompatible protein coronas and indicate a potential pitfall in the use of mismatched species combinations during nanomedicine development.
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Affiliation(s)
- Hossein Mohammad-Beigi
- iNANO Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Carsten Scavenius
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 Aarhus C, Denmark
| | - Pia Bomholt Jensen
- iNANO Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Kasper Kjaer-Sorensen
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 Aarhus C, Denmark
| | - Claus Oxvig
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 Aarhus C, Denmark
| | - Thomas Boesen
- iNANO Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Jan J Enghild
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 Aarhus C, Denmark
| | - Duncan S Sutherland
- iNANO Interdisciplinary Nanoscience Center, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
| | - Yuya Hayashi
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 Aarhus C, Denmark
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Santiago JP, Ward JM, Sharkey TD. Phaseolus vulgaris SUT1.1 is a high affinity sucrose-proton co-transporter. Plant Direct 2020; 4:e00260. [PMID: 32885136 PMCID: PMC7453976 DOI: 10.1002/pld3.260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Plant sucrose transporters are required for phloem loading, and therefore are essential for plant growth and development. In common beans (Phaseolus vulgaris) there are only two sucrose transporters functionally characterized. Through a previous RNA-seq study, we identified a putative sucrose transporter in common bean, which we hypothesize to function in import of sucrose into plant cells. In silico analysis revealed that PvSUT1.1 is a putative sucrose-proton co-transporter distinct from other characterized sucrose transporters in common bean indicating that this is a previously undescribed transporter protein in beans. Further analysis revealed that PvSUT1.1 shares high protein sequence homology to the phloem loader Arabidopsis SUC2; both have 12 transmembrane domains, a typical characteristic of plant sucrose transporters. Heterologous expression in yeast further showed PvSUT1.1 to be functional and it imported sucrose into yeast cells with a Km of 0.7 mM sucrose. Import of sucrose through PvSUT1.1 is also pH-dependent with highest uptake at pH 4.0, and activity is lost in the presence of the uncoupler carbonyl cyanide 3-chlorophenylhydrazone. Consistent with identification of PvSUT1.1 as a Type I transporter, PvSUT1.1 also transports esculin. Finally, PvSUT1.1 showed expression in multiple tissues and the protein was localized to the plasma membrane. The results show that PvSUT1.1 is a sucrose transporter that is probably involved in the uptake of sucrose into source and sink cells. The potential role of PvSUT1.1 in leaf phloem loading of sucrose in common beans and its importance in heat tolerance of reproductive tissues are further discussed.
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Affiliation(s)
- James P. Santiago
- Plant Resilience InstituteMichigan State UniversityEast LansingMIUSA
- Michigan State University‐Department of Energy Plant Research LaboratoryMichigan State UniversityEast LansingMIUSA
| | - John M. Ward
- Department of Plant and Microbial BiologyUniversity of MinnesotaSaint PaulMNUSA
| | - Thomas D. Sharkey
- Plant Resilience InstituteMichigan State UniversityEast LansingMIUSA
- Michigan State University‐Department of Energy Plant Research LaboratoryMichigan State UniversityEast LansingMIUSA
- Department of Biochemistry and Molecular BiologyMichigan State UniversityEast LansingMIUSA
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Hayashi Y, Takamiya M, Jensen PB, Ojea-Jiménez I, Claude H, Antony C, Kjaer-Sorensen K, Grabher C, Boesen T, Gilliland D, Oxvig C, Strähle U, Weiss C. Differential Nanoparticle Sequestration by Macrophages and Scavenger Endothelial Cells Visualized in Vivo in Real-Time and at Ultrastructural Resolution. ACS Nano 2020; 14:1665-1681. [PMID: 31922724 DOI: 10.1021/acsnano.9b07233] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite the common knowledge that the reticuloendothelial system is largely responsible for blood clearance of systemically administered nanoparticles, the sequestration mechanism remains a "black box". Using transgenic zebrafish embryos with cell type-specific fluorescent reporters and fluorescently labeled model nanoparticles (70 nm SiO2), we here demonstrate simultaneous three-color in vivo imaging of intravenously injected nanoparticles, macrophages, and scavenger endothelial cells (SECs). The trafficking processes were further revealed at ultrastructural resolution by transmission electron microscopy. We also find, using a correlative light-electron microscopy approach, that macrophages rapidly sequester nanoparticles via membrane adhesion and endocytosis (including macropinocytosis) within minutes after injection. In contrast, SECs trap single nanoparticles via scavenger receptor-mediated endocytosis, resulting in gradual sequestration with a time scale of hours. Inhibition of the scavenger receptors prevented SECs from accumulating nanoparticles but enhanced uptake in macrophages, indicating the competitive nature of nanoparticle clearance in vivo. To directly quantify the relative contributions of the two cell types to overall nanoparticle sequestration, the differential sequestration kinetics was studied within the first 30 min post-injection. This revealed a much higher and increasing relative contribution of SECs, as they by far outnumber macrophages in zebrafish embryos, suggesting the importance of the macrophage:SECs ratio in a given tissue. Further characterizing macrophages on their efficiency in nanoparticle clearance, we show that inflammatory stimuli diminish the uptake of nanoparticles per cell. Our study demonstrates the strength of transgenic zebrafish embryos for intravital real-time and ultrastructural imaging of nanomaterials that may provide mechanistic insights into nanoparticle clearance in rodent models and humans.
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Affiliation(s)
- Yuya Hayashi
- Department of Molecular Biology and Genetics , Aarhus University , Gustav Wieds Vej 10 , 8000 Aarhus C , Denmark
- Institute of Toxicology and Genetics , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
| | - Masanari Takamiya
- Institute of Toxicology and Genetics , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
| | - Pia Bomholt Jensen
- iNANO Interdisciplinary Nanoscience Center , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus C , Denmark
| | - Isaac Ojea-Jiménez
- Institute for Health and Consumer Protection , European Commission Joint Research Centre , Via E. Fermi 2749 , 21027 Ispra , Varese , Italy
| | - Hélicia Claude
- Institute of Toxicology and Genetics , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
| | - Claude Antony
- Institute of Toxicology and Genetics , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
| | - Kasper Kjaer-Sorensen
- Department of Molecular Biology and Genetics , Aarhus University , Gustav Wieds Vej 10 , 8000 Aarhus C , Denmark
| | - Clemens Grabher
- Institute of Toxicology and Genetics , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
| | - Thomas Boesen
- Department of Molecular Biology and Genetics , Aarhus University , Gustav Wieds Vej 10 , 8000 Aarhus C , Denmark
- iNANO Interdisciplinary Nanoscience Center , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus C , Denmark
| | - Douglas Gilliland
- Institute for Health and Consumer Protection , European Commission Joint Research Centre , Via E. Fermi 2749 , 21027 Ispra , Varese , Italy
| | - Claus Oxvig
- Department of Molecular Biology and Genetics , Aarhus University , Gustav Wieds Vej 10 , 8000 Aarhus C , Denmark
| | - Uwe Strähle
- Institute of Toxicology and Genetics , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
| | - Carsten Weiss
- Institute of Toxicology and Genetics , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Eggenstein-Leopoldshafen , Germany
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10
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Yu Y, Luo LY, Liu Z, Fu PN, Li HF. [Accumulation and Translocation of Cd in Brassica rapa Under the Influence of Selenium]. Huan Jing Ke Xue 2020; 41:962-969. [PMID: 32608758 DOI: 10.13227/j.hjkx.201909054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cadmium (Cd) is a highly toxic heavy metal. Brassica rapa (pak choi) is a vastly common vegetable, which readily accumulates Cd. Given the current conditions of Cd contamination in domestic soil, it is important to reduce Cd accumulation in the edible part of pak choi. Research has shown that selenium (Se) can regulate Cd uptake by plants. Cd accumulation (three cultivars) and Cd uptake kinetics in pak choi were investigated under hydroponic conditions. Results showed that the three levels of selenite significantly reduced Cd content in the Hangzhouyoudonger shoot by 50%, while the levels in Suzhouqinggen and Shanghaiqing shoots were not significantly decreased with elevated levels of selenite. Selenite reduces the Cd translocation factors, and higher levels had more obvious effects; 50 μmol·L-1 of selenite significantly decreased the factors by 50% in Hangzhouyoudonger and Suzhouqinggen shoots. Selenite also increased iron (Fe) and manganese (Mn) contents in pak choi, especially in the Hangzhouyoudonger shoot, where 50 μmol·L-1 increased the Fe content by approximately 50%. In the uptake kinetics of Cd, both selenite and selenate significantly increased Cd uptake rates and Vmax by over 100%. Therefore, Se could reduce Cd accumulation in pak choi. This also depended on the tested cultivar. Therefore, reduction effects of Se on the Cd content mainly stemmed from the alteration of Cd translocation in pak choi instead of the uptake competition between Cd and Se.
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Affiliation(s)
- Yao Yu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Li-Yun Luo
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Zhe Liu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Ping-Nan Fu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Hua-Fen Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
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11
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Wei Y, Salih KAM, Lu S, Hamza MF, Fujita T, Vincent T, Guibal E. Amidoxime Functionalization of Algal/Polyethyleneimine Beads for the Sorption of Sr(II) from Aqueous Solutions. Molecules 2019; 24:E3893. [PMID: 31671819 PMCID: PMC6864727 DOI: 10.3390/molecules24213893] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/22/2019] [Accepted: 10/26/2019] [Indexed: 01/26/2023] Open
Abstract
There is a need for developing new sorbents that incorporate renewable resources for the treatment of metal-containing solutions. Algal-polyethyleneimine beads (APEI) (reinforced with alginate) are functionalized by grafting amidoxime groups (AO-APEI). Physicochemical characteristics of the new material are characterized using FTIR, XPS, TGA, SEM, SEM-EDX, and BET. AO-APEI beads are tested for the recovery of Sr(II) from synthetic solutions after pH optimization (≈ pH 6). Uptake kinetics is fast (equilibrium ≈ 60-90 min). Sorption isotherm (fitted by the Langmuir equation) shows remarkable sorption capacity (≈ 189 mg Sr g-1). Sr(II) is desorbed using 0.2 M HCl/0.5 M CaCl2 solution; sorbent recycling over five cycles shows high stability in terms of sorption/desorption performances. The presence of competitor cations is studied in relation to the pH; the selectivity for Sr(II) is correlated to the softness parameter. Finally, the recovery of Sr(II) is carried out in complex solutions (seawater samples): AO-APEI is remarkably selective over highly concentrated metal cations such as Na(I), K(I), Mg(II), and Ca(II), with weaker selectivity over B(I) and As(V). AO-APEI appears to be a promising material for selective recovery of strontium from complex solutions (including seawater).
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Affiliation(s)
- Yuezhou Wei
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Khalid A M Salih
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Siming Lu
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Mohammed F Hamza
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
- Nuclear Materials Authority, POB 530, El-Maadi, Cairo, Egypt.
- C2MA, IMT-Mines Ales, Univ. Montpellier, F-30319 Alès cedex, France.
| | - Toyohisa Fujita
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Thierry Vincent
- C2MA, IMT-Mines Ales, Univ. Montpellier, F-30319 Alès cedex, France.
| | - Eric Guibal
- C2MA, IMT-Mines Ales, Univ. Montpellier, F-30319 Alès cedex, France.
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12
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Lubsch A, Timmermans KR. Uptake kinetics and storage capacity of dissolved inorganic phosphorus and corresponding dissolved inorganic nitrate uptake in Saccharina latissima and Laminaria digitata (Phaeophyceae). J Phycol 2019; 55:637-650. [PMID: 30734288 DOI: 10.1111/jpy.12844] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
Uptake rates of dissolved inorganic phosphorus and dissolved inorganic nitrogen under unsaturated and saturated conditions were studied in young sporophytes of the seaweeds Saccharina latissima and Laminaria digitata (Phaeophyceae) using a "pulse-and-chase" assay under fully controlled laboratory conditions. In a subsequent second "pulse-and-chase" assay, internal storage capacity (ISC) was calculated based on VM and the parameter for photosynthetic efficiency Fv /Fm . Sporophytes of S. latissima showed a VS of 0.80 ± 0.03 μmol · cm-2 · d-1 and a VM of 0.30 ± 0.09 μmol · cm-2 · d-1 for dissolved inorganic phosphate (DIP), whereas VS for DIN was 11.26 ± 0.56 μmol · cm-2 · d-1 and VM was 3.94 ± 0.67 μmol · cm-2 · d-1 . In L. digitata, uptake kinetics for DIP and DIN were substantially lower: VS for DIP did not exceed 0.38 ± 0.03 μmol · cm-2 · d-1 while VM for DIP was 0.22 ± 0.01 μmol · cm-2 · d-1 . VS for DIN was 3.92 ± 0.08 μmol · cm-2 · d-1 and the VM for DIN was 1.81 ± 0.38 μmol · cm-2 · d-1 . Accordingly, S. latissima exhibited a larger ISC for DIP (27 μmol · cm-2 ) than L. digitata (10 μmol · cm-2 ), and was able to maintain high growth rates for a longer period under limiting DIP conditions. Our standardized data add to the physiological understanding of S. latissima and L. digitata, thus helping to identify potential locations for their cultivation. This could further contribute to the development and modification of applications in a bio-based economy, for example, in evaluating the potential for bioremediation in integrated multitrophic aquacultures that produce biomass simultaneously for use in the food, feed, and energy industries.
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Affiliation(s)
- Alexander Lubsch
- NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems, Utrecht University, PO Box 140, 4401 NT, Yerseke, the Netherlands
- Department Ocean Ecosystems, University of Groningen, PO Box 72, 9700 AB, Groningen, the Netherlands
| | - Klaas R Timmermans
- NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems, Utrecht University, PO Box 140, 4401 NT, Yerseke, the Netherlands
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13
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Hioki M, Shimada T, Yuan T, Nakanishi T, Tajima H, Yamazaki M, Yokono R, Takabayashi M, Sawamoto K, Akashita G, Miyamoto KI, Ohta T, Tamai I, Shimada T, Sai Y. Contribution of equilibrative nucleoside transporters 1 and 2 to gemcitabine uptake in pancreatic cancer cells. Biopharm Drug Dispos 2018; 39:256-264. [PMID: 29682747 DOI: 10.1002/bdd.2131] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/30/2018] [Accepted: 04/02/2018] [Indexed: 12/17/2022]
Abstract
Hepatic arterial infusion (HAI) chemotherapy is expected to be a more effective and safer method to treat the hepatic metastasis of pancreatic cancer than intravenous (iv) administration because of higher tumor exposure and lower systemic exposure. To clarify the uptake mechanism of nucleoside anticancer drugs, including gemcitabine (GEM), in pancreatic cancer, we investigated the uptakes of radiolabeled uridine (a general substrate of nucleoside transporters) and GEM in pancreatic cancer cell lines MIA-PaCa2 and As-PC1. Uridine uptake was inhibited by non-labeled GEM and also by S-(4-nitrobenzyl)-6-thioinosine (NBMPR; an inhibitor of equilibrative nucleoside transporters, ENTs) in a concentration-dependent manner, suggesting that ENTs contribute to uridine uptake in pancreatic cancer cells. As for GEM, saturable uptake was mediated by high- and low-affinity components with Km values of micromolar and millimolar orders, respectively. Uptake was inhibited in a concentration-dependent manner by NBMPR and was sodium ion-independent. Moreover, the concentration dependence of uptake in the presence of 0.1 μM NBMPR showed a single low-affinity site. These results indicated that the high- and low-affinity sites correspond to hENT1 and hENT2, respectively. The results indicated that at clinically relevant hepatic concentrations of GEM in GEM-HAI therapy, the metastatic tumor exposure of GEM is predominantly determined by hENT2 under unsaturated conditions, suggesting that hENT2 expression in metastatic tumor would be a candidate biomarker for indicating anticancer therapy with GEM-HAI.
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Affiliation(s)
- Masato Hioki
- Department of Clinical Pharmacokinetics, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.,Department of Pharmacy, Local Independent Administrative Institution Mie Prefectural General Medical Center, 5450-132 Hinaga, Yokkaichi City, Mie, 510-8561, Japan
| | - Takuya Shimada
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Tian Yuan
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Takeo Nakanishi
- Faculty of Pharmaceutical Sciences, Department of Membrane Transport and Biopharmaceutics, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Hidehiro Tajima
- Department of Gastroenterological Surgery, Division of Cancer Medicine, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Maiko Yamazaki
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Rina Yokono
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Makiko Takabayashi
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Kazuki Sawamoto
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Gaku Akashita
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Ken-Ichi Miyamoto
- Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Tetsuo Ohta
- Department of Gastroenterological Surgery, Division of Cancer Medicine, Graduate School of Medical Sciences, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Ikumi Tamai
- Faculty of Pharmaceutical Sciences, Department of Membrane Transport and Biopharmaceutics, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Tsutomu Shimada
- Department of Clinical Pharmacokinetics, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.,Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
| | - Yoshimichi Sai
- Department of Clinical Pharmacokinetics, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.,Department of Hospital Pharmacy, University Hospital, Kanazawa University, Takara-machi, Kanazawa, 920-8641, Japan
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Lubsch A, Timmermans K. Uptake kinetics and storage capacity of dissolved inorganic phosphorus and corresponding N:P dynamics in Ulva lactuca (Chlorophyta). J Phycol 2018; 54:215-223. [PMID: 29243248 DOI: 10.1111/jpy.12612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 11/28/2017] [Indexed: 06/07/2023]
Abstract
Dissolved inorganic phosphorus (DIP) is an essential macronutrient for maintaining metabolism and growth in autotrophs. Little is known about DIP uptake kinetics and internal P-storage capacity in seaweeds, such as Ulva lactuca (Chlorophyta). Ulva lactuca is a promising candidate for biofiltration purposes and mass commercial cultivation. We exposed U. lactuca to a wide range of DIP concentrations (1-50 μmol · L-1 ) and a nonlimiting concentration of dissolved inorganic nitrogen (DIN; 5,000 μmol · L-1 ) under fully controlled laboratory conditions in a "pulse-and-chase" assay over 10 d. Uptake kinetics were standardized per surface area of U. lactuca fronds. Two phases of responses to DIP-pulses were measured: (i) a surge uptake (VS ) of 0.67 ± 0.10 μmol · cm-2 · d-1 and (ii) a steady state uptake (VM ) of 0.07 ± 0.03 μmol · cm-2 · d-1 . Mean internal storage capacity (ISCP ) of 0.73 ± 0.13 μmol · cm-2 was calculated for DIP. DIP uptake did not affect DIN uptake. Parameters of DIN uptake were also calculated: VS = 12.54 ± 1.90 μmol · cm-2 · d-1 , VM = 2.26 ± 0.86 μmol · cm-2 · d-1 , and ISCN = 22.90 ± 6.99 μmol · cm-2 . Combining ISC and VM values of P and N, nutrient storage capacity of U. lactuca was estimated to be sufficient for ~10 d. Both P and N storage capacities were filled within 2 d when exposed to saturating nutrient concentrations, and uptake rates declined thereafter at 90% for DIP and at 80% for DIN. Our results contribute to understanding the ecological aspects of nutrient uptake kinetics in U. lactuca and quantitatively evaluating its potential for bioremediation and/or biomass production for food, feed, and energy.
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Affiliation(s)
- Alexander Lubsch
- NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems, Utrecht University, PO Box 140, 4401 NT, Yerseke, the Netherlands
- Department Ocean Ecosystems, University of Groningen, PO Box 72, 9700 AB, Groningen, the Netherlands
| | - Klaas Timmermans
- NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems, Utrecht University, PO Box 140, 4401 NT, Yerseke, the Netherlands
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15
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Alba J, Navarro R, Saucedo I, Vincent T, Guibal E. Extractant Immobilization in Alginate Capsules (Matrix- and Mononuclear-Type): Application to Pb(II) Sorption from HCl Solutions. Materials (Basel) 2017; 10:ma10060634. [PMID: 28772991 PMCID: PMC5554015 DOI: 10.3390/ma10060634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 06/01/2017] [Accepted: 06/06/2017] [Indexed: 11/25/2022]
Abstract
The decontamination of dilute industrial effluents is a critical challenge for decreasing the environmental impact of mining and metallurgical activities. As an alternative to conventional processes, new extractant impregnated resins (EIRs) have been synthesized by the immobilization of Cyanex 301 and Cyanex 302 in alginate capsules using two different procedures (matrix-type immobilization vs. mononuclear encapsulation). These materials have been tested for Pb(II) sorption from acidic solutions. The Langmuir equation fitted well the sorption isotherms and the maximum sorption capacities vary between 24 and 80 mg·g−1 at pH 1, depending on the type and loading of the extractant in the EIR. Uptake kinetics were controlled by the resistance to intraparticle diffusion; though both the Crank equation (intraparticle diffusion) and pseudo-second order rate equation equally fitted uptake profiles. The amount of extractant immobilized in mononuclear capsules is lower than in matrix-type beads; this leads to lower sorption capacities but slightly better mass transfer properties. The balance between the advantages and drawbacks of the different systems makes more promising matrix-type capsules. The desorption of Pb(II) is possible using 1 M HNO3 solutions: metal ions were completely desorbed. However, the probable oxidation of the extractants (conversion to oxidized forms more sensitive to pH) reduces the sorption efficiency when they are re-used.
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Affiliation(s)
- Janette Alba
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, C.P. 36040, Mexico.
- Centre des Matériaux des Mines d'Alès, Ecole des mines d'Alès, F-30319 Alès cedex, France.
| | - Ricardo Navarro
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, C.P. 36040, Mexico.
| | - Imelda Saucedo
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Guanajuato, C.P. 36040, Mexico.
| | - Thierry Vincent
- Centre des Matériaux des Mines d'Alès, Ecole des mines d'Alès, F-30319 Alès cedex, France.
| | - Eric Guibal
- Centre des Matériaux des Mines d'Alès, Ecole des mines d'Alès, F-30319 Alès cedex, France.
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16
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Hamza MF, Aly MM, Abdel-Rahman AA, Ramadan S, Raslan H, Wang S, Vincent T, Guibal E. Functionalization of Magnetic Chitosan Particles for the Sorption of U(VI), Cu(II) and Zn(II)-Hydrazide Derivative of Glycine-Grafted Chitosan. Materials (Basel) 2017; 10:E539. [PMID: 28772896 DOI: 10.3390/ma10050539] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/05/2017] [Accepted: 05/09/2017] [Indexed: 01/30/2023]
Abstract
A new magnetic functionalized derivative of chitosan is synthesized and characterized for the sorption of metal ions (environmental applications and metal valorization). The chemical modification of the glycine derivative of chitosan consists of: activation of the magnetic support with epichlorohydrin, followed by reaction with either glycine to produce the reference material (i.e., Gly sorbent) or glycine ester hydrochloride, followed by hydrazinolysis to synthesize the hydrazide functionalized sorbent (i.e., HGly sorbent). The materials are characterized by titration, elemental analysis, FTIR analysis (Fourrier-transform infrared spectrometry), TGA analysis (thermogravimetric analysis) and with SEM-EDX (scanning electron microscopy coupled to energy dispersive X-ray analysis). The sorption performances for U(VI), Cu(II), and Zn(II) are tested in batch systems. The sorption performances are compared for Gly and HGly taking into account the effect of pH, the uptake kinetics (fitted by the pseudo-second order rate equation), and the sorption isotherms (described by the Langmuir and the Sips equations). The sorption capacities of the modified sorbent reach up to 1.14 mmol U g-1, 1.69 mmol Cu g-1, and 0.85 mmol Zn g-1. In multi-metal solutions of equimolar concentration, the chemical modification changes the preferences for given metal ions. Metal ions are desorbed using 0.2 M HCl solutions and the sorbents are re-used for five cycles of sorption/desorption without significant loss in performances.
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17
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Bertagnolli C, Grishin A, Vincent T, Guibal E. Boron removal by a composite sorbent: Polyethylenimine/tannic acid derivative immobilized in alginate hydrogel beads. J Environ Sci Health A Tox Hazard Subst Environ Eng 2017; 52:359-367. [PMID: 27960600 DOI: 10.1080/10934529.2016.1260893] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A novel composite material was prepared by the grafting of tannic acid on polyethylenimine (PEI), which allows an efficient sorption of boron (sorption capacity close to 0.89 mmol B g-1). The encapsulation of this chelating sorbent (finely crushed) facilitates its use (readily solid/liquid separation, use in fixed-bed columns) at the expense of a loss in sorption capacity (proportionally decreased by the introduction of alginate having poor efficiency for boron uptake). Sorption isotherms are modeled using the Langmuir equation, while the kinetic profiles are presented a good fit by pseudo-second order rate equation. In addition, the encapsulating matrix introduces supplementary resistance to intraparticle diffusion, especially when the resin is dried without control: freeze-drying partially limits this effect. The stability (at long-term storage) of the sorbent is improved when the sorbent is stored under nitrogen atmosphere. The presence of an excess of NaCl was investigated. The degradation of the hydrogel (by ion-exchange of Ca(II) with Na(I)) leads to a decrease in the sorption performance of composite material but the action of Ca(II) ions in the solutions re-stabilizes the hydrogel.
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Affiliation(s)
- Caroline Bertagnolli
- a Center of Materials Research, Ecole des mines d'Alès (C2MA), Pôle Matériaux Polymères Avancés , Alès cedex , France
| | - Andrey Grishin
- a Center of Materials Research, Ecole des mines d'Alès (C2MA), Pôle Matériaux Polymères Avancés , Alès cedex , France
| | - Thierry Vincent
- a Center of Materials Research, Ecole des mines d'Alès (C2MA), Pôle Matériaux Polymères Avancés , Alès cedex , France
| | - Eric Guibal
- a Center of Materials Research, Ecole des mines d'Alès (C2MA), Pôle Matériaux Polymères Avancés , Alès cedex , France
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18
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Hanot CC, Choi YS, Anani TB, Soundarrajan D, David AE. Effects of Iron-Oxide Nanoparticle Surface Chemistry on Uptake Kinetics and Cytotoxicity in CHO-K1 Cells. Int J Mol Sci 2015; 17:ijms17010054. [PMID: 26729108 PMCID: PMC4730299 DOI: 10.3390/ijms17010054] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 12/21/2015] [Accepted: 12/23/2015] [Indexed: 12/20/2022] Open
Abstract
Superparamagnetic iron-oxide nanoparticles (SPIONs) show great promise for multiple applications in biomedicine. While a number of studies have examined their safety profile, the toxicity of these particles on reproductive organs remains uncertain. The goal of this study was to evaluate the cytotoxicity of starch-coated, aminated, and PEGylated SPIONs on a cell line derived from Chinese Hamster ovaries (CHO-K1 cells). We evaluated the effect of particle diameter (50 and 100 nm) and polyethylene glycol (PEG) chain length (2k, 5k and 20k Da) on the cytotoxicity of SPIONs by investigating cell viability using the tetrazolium dye 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and sulforhodamine B (SRB) assays. The kinetics and extent of SPION uptake by CHO-K1 cells was also studied, as well as the resulting generation of intracellular reactive oxygen species (ROS). Cell toxicity profiles of SPIONs correlated strongly with their cellular uptake kinetics, which was strongly dependent on surface properties of the particles. PEGylation caused a decrease in both uptake and cytotoxicity compared to aminated SPIONs. Interestingly, 2k Da PEG-modifed SPIONs displayed the lowest cellular uptake and cytotoxicity among all studied particles. These results emphasize the importance of surface coatings when engineering nanoparticles for biomedical applications.
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Affiliation(s)
- Camille C Hanot
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| | - Young Suk Choi
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| | - Tareq B Anani
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
| | | | - Allan E David
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.
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Galhoum AA, Mafhouz MG, Abdel-Rehem ST, Gomaa NA, Atia AA, Vincent T, Guibal E. Cysteine-Functionalized Chitosan Magnetic Nano-Based Particles for the Recovery of Light and Heavy Rare Earth Metals: Uptake Kinetics and Sorption Isotherms. Nanomaterials (Basel) 2015; 5:154-179. [PMID: 28347004 PMCID: PMC5312863 DOI: 10.3390/nano5010154] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 01/16/2015] [Accepted: 01/27/2015] [Indexed: 11/16/2022]
Abstract
Cysteine-functionalized chitosan magnetic nano-based particles were synthesized for the sorption of light and heavy rare earth (RE) metal ions (La(III), Nd(III) and Yb(III)). The structural, surface, and magnetic properties of nano-sized sorbent were investigated by elemental analysis, FTIR, XRD, TEM and VSM (vibrating sample magnetometry). Experimental data show that the pseudo second-order rate equation fits the kinetic profiles well, while sorption isotherms are described by the Langmuir model. Thermodynamic constants (ΔG°, ΔH°) demonstrate the spontaneous and endothermic nature of sorption. Yb(III) (heavy RE) was selectively sorbed while light RE metal ions La(III) and Nd(III) were concentrated/enriched in the solution. Cationic species RE(III) in aqueous solution can be adsorbed by the combination of chelating and anion-exchange mechanisms. The sorbent can be efficiently regenerated using acidified thiourea.
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Affiliation(s)
- Ahmed A Galhoum
- Ecole des mines d'Alès, Centre des Matériaux des Mines d'Alès, 6 avenue de Clavières, F-30319 Alès cedex, France.
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
| | | | - Sayed T Abdel-Rehem
- Chemistry Department, Faculty of Science, Ain Shams University, P.O. Box 11566 Ain Shams, Egypt.
| | - Nabawia A Gomaa
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
| | - Asem A Atia
- Chemistry Department, Faculty of Science, Menoufia University, P.O. Box 32511 Shebin El-Kom, Egypt.
| | - Thierry Vincent
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
| | - Eric Guibal
- Nuclear Materials Authority, P.O. Box 530, El-Maadi, Cairo, Egypt.
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Chan WF, Li WC, Wong MH. Uptake Kinetics of Arsenic in Upland Rice Cultivar Zhonghan 221 Inoculated with Arbuscular Mycorrhizal Fungi. Int J Phytoremediation 2015; 17:1073-1080. [PMID: 25901895 DOI: 10.1080/15226514.2015.1021952] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) appear to be highly associated with arsenic (As) uptake in host plants because arsenate (As(V)) and phosphorus (P) share the same transporter, whereby AMF can enhance P uptake. A short-term experiment was conducted for low- (0 to 0.05 mM As) and high-affinity (0 to 2.5 mM As) uptake systems, to investigate the AMF role on As uptake mechanism in plants, which may explain As uptake kinetics in upland rice cultivar: Zhonghan 221. When concentration of As ranged from 0 to 0.05 mM, Funneliformis geosporum (Fg) significantly decreased arsenite (As(III)) and monomethylarsonicacid (MMA) uptake when (p < 0.05) compared to non-mycorrhizal (NM) treatment, since the major route for (As(III)) in rice roots-rice silicon transporter Lsi1 would be influenced by Fg inoculation at high As concentrations. Fg can also reduce As(V) uptake significantly (p < 0.05) under both uptake systems relative to NM treatment, whereas, Funneliformis mosseae (Fm) increased As(V) and MMA uptake in rice roots, with MMA uptake rate generally lower than As(III) and As(V). Using suitable AMF species inoculation with rice, As uptake and accumulation in rice grains can be reduced and the risk to human health, once consumed, can be minimized.
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Affiliation(s)
- W F Chan
- a Croucher Institute for Environmental Sciences, and Department of Biology Hong Kong Baptist University , Hong Kong SAR
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Langston Suen WL, Chau Y. Size-dependent internalisation of folate-decorated nanoparticles via the pathways of clathrin and caveolae-mediated endocytosis in ARPE-19 cells. ACTA ACUST UNITED AC 2013; 66:564-73. [PMID: 24635558 DOI: 10.1111/jphp.12134] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 07/23/2013] [Indexed: 11/30/2022]
Abstract
OBJECTIVES We aim to quantify the effect of size and degree of folate loading of folate-decorated polymeric nanoparticles (NPs) on the kinetics of cellular uptake and the selection of endocytic pathways in retinal pigment epithelium (RPE) cells. METHODS In this study, methoxy-poly(ethylene glycol)-b-polycaprolactone (mPEG-b-PCL) and folate-functionalized PEG-b-PCL were synthesized for assembling into nanoparticles with sizes ranging from 50 nm to 250 nm. These nanoparticles were internalized into ARPE-19 (human RPE cell line) via receptor-mediated endocytosis. A two-step endocytosis process mathematical model was adopted to quantify binding affinity and uptake kinetics of nanoparticles in RPE cells in uptake and inhibition studies. KEY FINDINGS Nanoparticles with 100% folate loading have highest binding affinity and uptake rate in RPE cells. Maximum uptake rate (Vmax) of nanoparticles increased as the size of particles decreased from 250 nm to 50 nm. Endocytic pathway study was studied by using chlorpromazine and methyl-β-cyclodextran (MβCD), which are clathrin- and caveolae-mediated endocytosis inhibitors, respectively. Both chlorpromazine and MβCD inhibited the uptake of folate-decorated nanoparticles. Inhibition constant (Ki) and maximum uptake rate (Vmax) revealed that 50 nm and 120 nm folate-decorated nanoparticles were found to be internalized via both clathrin- and caveolae-mediated endocytosis. The 250 nm folate-decorated nanoparticles, however, were only internalized via caveolae-mediated pathway. CONCLUSIONS Increased uptake rate of folate-decorated NPs into RPE cells is observed with increasing degree of folate modification. These NPs utilize both clathrin- and caveolae-mediated receptor-mediated endocytosis pathways to enter RPE cells upon size variation. The 50 nm NPs are internalized the fastest, with clathrin-mediated endocytosis as the preferred route. Uptake of 250 nm particles is the slowest and is dominated by caveolae-mediated endocytosis.
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Affiliation(s)
- Wai-Leung Langston Suen
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
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Schlorf T, Meincke M, Kossel E, Glüer CC, Jansen O, Mentlein R. Biological properties of iron oxide nanoparticles for cellular and molecular magnetic resonance imaging. Int J Mol Sci 2010; 12:12-23. [PMID: 21339973 PMCID: PMC3039939 DOI: 10.3390/ijms12010012] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 12/09/2010] [Accepted: 12/21/2010] [Indexed: 11/23/2022] Open
Abstract
Superparamagnetic iron-oxide particles (SPIO) are used in different ways as contrast agents for magnetic resonance imaging (MRI): Particles with high nonspecific uptake are required for unspecific labeling of phagocytic cells whereas those that target specific molecules need to have very low unspecific cellular uptake. We compared iron-oxide particles with different core materials (magnetite, maghemite), different coatings (none, dextran, carboxydextran, polystyrene) and different hydrodynamic diameters (20–850 nm) for internalization kinetics, release of internalized particles, toxicity, localization of particles and ability to generate contrast in MRI. Particle uptake was investigated with U118 glioma cells und human umbilical vein endothelial cells (HUVEC), which exhibit different phagocytic properties. In both cell types, the contrast agents Resovist, B102, non-coated Fe3O4 particles and microspheres were better internalized than dextran-coated Nanomag particles. SPIO uptake into the cells increased with particle/iron concentrations. Maximum intracellular accumulation of iron particles was observed between 24 h to 36 h of exposure. Most particles were retained in the cells for at least two weeks, were deeply internalized, and only few remained adsorbed at the cell surface. Internalized particles clustered in the cytosol of the cells. Furthermore, all particles showed a low toxicity. By MRI, monolayers consisting of 5000 Resovist-labeled cells could easily be visualized. Thus, for unspecific cell labeling, Resovist and microspheres show the highest potential, whereas Nanomag particles are promising contrast agents for target-specific labeling.
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Affiliation(s)
- Thomas Schlorf
- Department of Anatomy, Christian-Albrechts-University Kiel, Otto-Hahn-Platz 8, 24118 Kiel, Germany; E-Mails: (T.S.); (M.M.)
| | - Manuela Meincke
- Department of Anatomy, Christian-Albrechts-University Kiel, Otto-Hahn-Platz 8, 24118 Kiel, Germany; E-Mails: (T.S.); (M.M.)
| | - Elke Kossel
- Department of Radiology, Division of Medical Physics, University Clinic Schleswig-Holstein, Campus Kiel, Arnold Heller Straße 9, 24105 Kiel, Germany; E-Mails: (E.K.); (C.-C.G.)
| | - Claus-Christian Glüer
- Department of Radiology, Division of Medical Physics, University Clinic Schleswig-Holstein, Campus Kiel, Arnold Heller Straße 9, 24105 Kiel, Germany; E-Mails: (E.K.); (C.-C.G.)
| | - Olav Jansen
- Department of Neuroradiology, University Clinic Schleswig-Holstein, Campus Kiel, Schittenhelmstraße 10, 24105 Kiel, Germany; E-Mail:
| | - Rolf Mentlein
- Department of Anatomy, Christian-Albrechts-University Kiel, Otto-Hahn-Platz 8, 24118 Kiel, Germany; E-Mails: (T.S.); (M.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +49-431-880-2460; Fax: +49-431-880-1557
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Jauzein C, Collos Y, Garcés E, Vila M, Maso M. SHORT-TERM TEMPORAL VARIABILITY OF AMMONIUM AND UREA UPTAKE BY ALEXANDRIUM CATENELLA (DINOPHYTA) IN CULTURES(1). J Phycol 2008; 44:1136-1145. [PMID: 27041710 DOI: 10.1111/j.1529-8817.2008.00570.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In batch cultures of four Mediterranean strains (from France, Italy, and Spain) of Alexandrium catenella (Whedon et Kof.) Balech growing on a daily light cycle, ammonium and urea uptake were estimated by the (15) N tracer technique. Ammonium uptake could be described by Michaelis-Menten kinetics along a substrate gradient of 0.1-10 μgat N · L(-1) for the four strains, while two different patterns were observed for urea uptake with Michaelis-Menten kinetics for one strain and linear kinetics for the others. In all cases, an increase in uptake rates with time was noted over the daylight period. This trend led to a net increase in the maximum uptake rate (Vmax ; for saturable kinetics) and in the initial slope α. For ammonium, Vmax increased by a factor of 2-10 depending on the strain, and, for urea, the maximal uptake rates measured increased by a factor of 2-18. Temporal variations of half-saturation constants (Ks ) for both nutrients did not show a clear trend. Increases in Vmax and α showed an acclimation of the cells' uptake system over time to a N pulse, which may be explained by the light periodicity. For two strains, extensive ammonium release was observed during urea assimilation. This mechanism removes urea from the medium, so it is no longer available to other potential competitors, but supplies N back to the medium in the form of ammonium. From a methodological point of view, the phenomenon leads to considerable underestimates of the contribution of urea to phytoplankton growth.
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Affiliation(s)
- Cécile Jauzein
- Université Montpellier II, CNRS, Ifremer, Laboratoire Ecosystèmes Lagunaires (UMR 5119), CC093, 34095 Montpellier Cedex 5, France Laboratoire Environnement Ressources/LR, Ifremer, B.P. 171, 34203 Sète, FranceInstitut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta, 37-49, E08003 Barcelona, Catalunya, Spain
| | - Yves Collos
- Université Montpellier II, CNRS, Ifremer, Laboratoire Ecosystèmes Lagunaires (UMR 5119), CC093, 34095 Montpellier Cedex 5, France Laboratoire Environnement Ressources/LR, Ifremer, B.P. 171, 34203 Sète, FranceInstitut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta, 37-49, E08003 Barcelona, Catalunya, Spain
| | - Esther Garcés
- Université Montpellier II, CNRS, Ifremer, Laboratoire Ecosystèmes Lagunaires (UMR 5119), CC093, 34095 Montpellier Cedex 5, France Laboratoire Environnement Ressources/LR, Ifremer, B.P. 171, 34203 Sète, FranceInstitut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta, 37-49, E08003 Barcelona, Catalunya, Spain
| | - Magda Vila
- Université Montpellier II, CNRS, Ifremer, Laboratoire Ecosystèmes Lagunaires (UMR 5119), CC093, 34095 Montpellier Cedex 5, France Laboratoire Environnement Ressources/LR, Ifremer, B.P. 171, 34203 Sète, FranceInstitut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta, 37-49, E08003 Barcelona, Catalunya, Spain
| | - Mercedes Maso
- Université Montpellier II, CNRS, Ifremer, Laboratoire Ecosystèmes Lagunaires (UMR 5119), CC093, 34095 Montpellier Cedex 5, France Laboratoire Environnement Ressources/LR, Ifremer, B.P. 171, 34203 Sète, FranceInstitut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta, 37-49, E08003 Barcelona, Catalunya, Spain
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Moriya M, Ho YH, Grana A, Nguyen L, Alvarez A, Jamil R, Ackland ML, Michalczyk A, Hamer P, Ramos D, Kim S, Mercer JFB, Linder MC. Copper is taken up efficiently from albumin and alpha2-macroglobulin by cultured human cells by more than one mechanism. Am J Physiol Cell Physiol 2008; 295:C708-21. [PMID: 18579803 PMCID: PMC2544443 DOI: 10.1152/ajpcell.00029.2008] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Accepted: 06/19/2008] [Indexed: 11/22/2022]
Abstract
Ionic copper entering blood plasma binds tightly to albumin and the macroglobulin transcuprein. It then goes primarily to the liver and kidney except in lactation, where a large portion goes directly to the mammary gland. Little is known about how this copper is taken up from these plasma proteins. To examine this, the kinetics of uptake from purified human albumin and alpha(2)-macroglobulin, and the effects of inhibitors, were measured using human hepatic (HepG2) and mammary epithelial (PMC42) cell lines. At physiological concentrations (3-6 muM), both cell types took up copper from these proteins independently and at rates similar to each other and to those for Cu-dihistidine or Cu-nitrilotriacetate (NTA). Uptakes from alpha(2)-macroglobulin indicated a single saturable system in each cell type, but with different kinetics, and 65-80% inhibition by Ag(I) in HepG2 cells but not PMC42 cells. Uptake kinetics for Cu-albumin were more complex and also differed with cell type (as was the case for Cu-histidine and NTA), and there was little or no inhibition by Ag(I). High Fe(II) concentrations (100-500 microM) inhibited copper uptake from albumin by 20-30% in both cell types and that from alpha(2)-macroglobulin by 0-30%, and there was no inhibition of the latter by Mn(II) or Zn(II). We conclude that the proteins mainly responsible for the plasma-exchangeable copper pool deliver the metal to mammalian cells efficiently and by several different mechanisms. alpha(2)-Macroglobulin delivers it primarily to copper transporter 1 in hepatic cells but not mammary epithelial cells, and additional as-yet-unidentified copper transporters or systems for uptake from these proteins remain to be identified.
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Affiliation(s)
- Mizue Moriya
- Department of Chemistry and Biochemistry and Institute for Molecular Biology and Nutrition, California State University, Fullerton, California 92834-6866, USA
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Affiliation(s)
- Steve P McGrath
- IACR-Rothamsted, Soil Science Department, Harpenden, Herts AL5 2JQ, UK *Author for correspondence (tel +44 1582763133; fax +44 1582760981; email )
| | - Enzo Lombi
- IACR-Rothamsted, Soil Science Department, Harpenden, Herts AL5 2JQ, UK *Author for correspondence (tel +44 1582763133; fax +44 1582760981; email )
| | - Fang-Jie Zhao
- IACR-Rothamsted, Soil Science Department, Harpenden, Herts AL5 2JQ, UK *Author for correspondence (tel +44 1582763133; fax +44 1582760981; email )
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Lombi E, Zhao FJ, McGrath SP, Young SD, Sacchi GA. Physiological evidence for a high-affinity cadmium transporter highly expressed in a Thlaspi caerulescens ecotype. New Phytol 2001; 149:53-60. [PMID: 33853240 DOI: 10.1046/j.1469-8137.2001.00003.x] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
• Uptake kinetics and translocation characteristics of cadmium and zinc are presented for two contrasting ecotypes of the Cd/Zn hyperaccumulator Thlaspi caerulescens, Ganges (southern France) and Prayon (Belgium). • Experiments using radioactive isotopes were designed to investigate the physiology of Cd and Zn uptake, and a pressure-chamber system was employed to collect xylem sap. • In contrast to similar Zn uptake and translocation, measurements of concentration-dependent influx of Cd revealed marked differences between ecotypes. Ganges alone showed a clear saturable component in the low Cd concentration range; maximum influx Vmax for Cd was fivefold higher in Ganges; and there was a fivefold difference in the Cd concentration in xylem sap. Addition of Zn to the uptake solution at equimolar concentration to Cd did not decrease Cd uptake by Ganges, but caused a 35% decrease in Prayon. • There is strong physiological evidence for a high-affinity, highly expressed Cd transporter in the root cell plasma membranes of the Ganges ecotype of T. caerulescens. This raises evolutionary questions about specific transporters for non-essential metals. The results also show the considerable scope for selecting hyperaccumulator ecotypes to achieve higher phytoextraction efficiencies.
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Affiliation(s)
- E Lombi
- Soil Science Department, IACR-Rothamsted, Harpenden, Herts AL5 2JQ, UK
| | - F J Zhao
- Soil Science Department, IACR-Rothamsted, Harpenden, Herts AL5 2JQ, UK
| | - S P McGrath
- School of Life and Environmental Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - S D Young
- School of Life and Environmental Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - G A Sacchi
- Dipartimento di Vegetale Produzione, Universita di Milano, Via Celoria 2, 20133 Milano, Italy
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