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Perez MG, Suarez NG, Annabi B, Mateescu MA. Bioactive copper(II) agents and their potential involvement in the treatment of copper deficiency-related orphan diseases. J Inorg Biochem 2023; 247:112334. [PMID: 37499466 DOI: 10.1016/j.jinorgbio.2023.112334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/09/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
The deregulation of copper homoeostasis can promote various diseases such as Menkes disease or hypertrophic cardioencephalomyopathy. We have recently synthesized solid copper(II) complexes ([Cu(His)2Cl2] and [Cu(Ser)2]), stable in physiological media and with potential as therapeutic agents. This report describes: i) the biocompatibility of these complexes at concentrations up to 100 μM using a differentiated Caco-2 cells model; ii) their transport across the intestinal epithelium using a transepithelial resistance assay and monitoring the amount of copper complexes at the apical and basolateral sides of the cells. The results suggest that the flow occurs through paracellular routes. The intracellular copper retention was <2.7% with no significant differences in intracellular copper content between 6 h and 48 h, suggesting an early copper retention process. Furthermore, this is the first evidence that demonstrates [Cu(His)2Cl2] and [Cu(Ser)2] induce transcriptional downregulation of the four major copper transporters (CTR1, DMT1, ATP7A, ATP7B), and the upregulation of the metallothionein gene expression. A remarkable finding was the increase in cytochrome c oxidase activity observed after the treatment of differentiated Caco-2 cells with copper(II) complexes at concentrations of 50-100 μM. The understanding of the transport mechanisms of these copper(II) complexes across the intestinal epithelium and of their subsequent biological activities could contribute to the development of optimal pharmaceutical formulations for the therapy of copper deficiency-related diseases.
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Affiliation(s)
- Mariela Gomez Perez
- Department of Chemistry and Center CERMO-FC, Université du Québec à Montréal, C.P. 8888, Montréal, Québec H3C 3P8, Canada.
| | - Narjara Gonzalez Suarez
- Department of Chemistry and Center CERMO-FC, Université du Québec à Montréal, C.P. 8888, Montréal, Québec H3C 3P8, Canada.
| | - Borhane Annabi
- Department of Chemistry and Center CERMO-FC, Université du Québec à Montréal, C.P. 8888, Montréal, Québec H3C 3P8, Canada.
| | - Mircea Alexandru Mateescu
- Department of Chemistry and Center CERMO-FC, Université du Québec à Montréal, C.P. 8888, Montréal, Québec H3C 3P8, Canada.
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2
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Wang Y, Li BS, Zhang ZH, Wang Z, Wan YT, Wu FW, Liu JC, Peng JX, Wang HY, Hong L. Paeonol repurposing for cancer therapy: From mechanism to clinical translation. Biomed Pharmacother 2023; 165:115277. [PMID: 37544285 DOI: 10.1016/j.biopha.2023.115277] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023] Open
Abstract
Paeonol (PAE) is a natural phenolic monomer isolated from the root bark of Paeonia suffruticosa that has been widely used in the clinical treatment of some inflammatory-related diseases and cardiovascular diseases. Much preclinical evidence has demonstrated that PAE not only exhibits a broad spectrum of anticancer effects by inhibiting cell proliferation, invasion and migration and inducing cell apoptosis and cycle arrest through multiple molecular pathways, but also shows excellent performance in improving cancer drug sensitivity, reversing chemoresistance and reducing the toxic side effects of anticancer drugs. However, studies indicate that PAE has the characteristics of poor stability, low bioavailability and short half-life, which makes the effective dose of PAE in many cancers usually high and greatly limits its clinical translation. Fortunately, nanomaterials and derivatives are being developed to ameliorate PAE's shortcomings. This review aims to systematically cover the anticancer advances of PAE in pharmacology, pharmacokinetics, nano delivery systems and derivatives, to provide researchers with the latest and comprehensive information, and to point out the limitations of current studies and areas that need to be strengthened in future studies. We believe this work will be beneficial for further exploration and repurposing of this natural compound as a new clinical anticancer drug.
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Affiliation(s)
- Ying Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Bing-Shu Li
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zi-Hui Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zhi Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yu-Ting Wan
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Fu-Wen Wu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jing-Chun Liu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jia-Xin Peng
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Hao-Yu Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Li Hong
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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Ziółkowska A, Doroszuk J, Ponikiewski Ł. Overview of the Synthesis and Catalytic Reactivity of Transition Metal Complexes Based on C═P Bond Systems. Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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4
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Qiu X, Chen S, Zhu J. Assembled Morphology of Copper-Thiourea Coordination-Mediated Metallo-Supramolecular Polymers. Macromol Rapid Commun 2023; 44:e2200918. [PMID: 36639944 DOI: 10.1002/marc.202200918] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/26/2022] [Indexed: 01/15/2023]
Abstract
Metallo-supramolecular polymers represent a powerful platform to construct self-assembled morphologies. Copper-thiourea (Cu-TU) coordination interactions, though have been extensively studied in small molecular system, the role of TU motifs in synthetic polymers using metal-ligand coordination to afford supramolecular aggregation and their morphology are often overlooked. Herein, an amphiphilic random copolymer, poly(oligo(ethylene glycol) ethyl acrylate-r-acylthiourea) (P(OEGEA-r-ATU)), bearing pendant TU motifs behaving as the ligand to coordinate Cu, a design characterized by core-coordinated metallo-supramolecular polymer is rationally synthesized. Indeed, rod-like nano-objects are successfully generated via the self-assembly and coordination interaction between P(OEGEA-r-ATU) and Cu. The spatial distribution of TU moieties in polymer chain, along with their Cu chelating capability, featuring the interchain coordination interaction, is tightly related to metallo-supramolecular polymer organization. The specific Cu-TU coordination interactions enable the prompted robustness and stability of soft P(OEGEA-r-ATU), induce the polymer chain configuration, which eventually furnish efficient fabrication of rod-like nano-objects via straightforward nanoprecipitation procedure. These structural motifs of copper-coordinated, rod-like nano-objects from such metallo-supramolecular polymers endow the potential therapeutic properties, such as anti-inflammatory and antitumor effects.
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Affiliation(s)
- Xiaoyang Qiu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Senbin Chen
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
| | - Jintao Zhu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, 430074, China
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Sajjan VP, Anigol LB, Gurubasavaraj PM, Kotresha D, Pradhan S, Venkatesh S, Patil D. Synthesis, characterization and molecular docking studies of phenoxyimine based ligands: Cytotoxicity, hemolytic activity and antioxidant assessment. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Yiğit M, Şireci N, Günal S, Önderci M, Özdemir N, Arınç A, Yiğit B, Özdemir İ. Synthesis, spectroscopic characterization and antimicrobial properties of silyl-tethered benzimidazolium salts. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Olar R, Maxim C, Badea M, Bacalum M, Raileanu M, Avram S, Korošin NČ, Burlanescu T, Rostas AM. Antiproliferative Copper(II) Complexes Bearing Mixed Chelating Ligands: Structural Characterization, ROS Scavenging, In Silico Studies, and Anti-Melanoma Activity. Pharmaceutics 2022; 14:pharmaceutics14081692. [PMID: 36015318 PMCID: PMC9416163 DOI: 10.3390/pharmaceutics14081692] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/29/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Melanoma is a skin cancer characterized by rapid growth and spread for which current therapies produce both resistance and increased risk of infection. To develop new anti-melanoma biocompatible species, the series of complexes Cu(N-N)(bzac)(X)⋅nH2O (N-N: 1,10-phenanthroline/2,2′-bipyridine, Hbzac: 1-phenyl-1,3-butanedione, X: NO3/ClO4, and n = 0, 1) was studied. Single-crystal X-ray diffraction revealed a mononuclear structure for all complexes. The ability of the complexes to scavenge or trap reactive oxygen species such as O2⋅− and HO⋅ was proved by EPR spectroscopy experiments. All complexes inhibited B16 murine melanoma cells in a dose-dependent and nanomolar range, but the complexes with 1,10-phenanthroline were more active. Moreover, comparative activity on B16 and healthy BJ cells revealed a therapeutic index of 1.27–2.24. Bioinformatic methods were used to calculate the drug-likeness, pharmacokinetic, pharmacogenomic, and pharmacodynamic profiles of the compounds. The results showed that all compounds exhibit drug-likeness features, as well as promising absorption, distribution, metabolism, and excretion (ADME) properties, and no toxicity. The pharmacodynamics results showed that the neutral species appear to be good candidates for antitumor molecular targets (Tyrosyl-DNA phosphodiesterase 1, DNA-(apurinic or apyrimidinic site) lyase or Kruppel-like factor 5). Furthermore, the pharmacogenomic results showed a good affinity of the copper(II) complexes for the human cytochrome. These results recommend complexes bearing 1,10-phenanthroline as good candidates for developing drugs to melanoma alternative treatment.
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Affiliation(s)
- Rodica Olar
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
- Correspondence: (R.O.); (S.A.)
| | - Catalin Maxim
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Mihaela Badea
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania
| | - Mihaela Bacalum
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Department of Life and Environmental Physics, 30 Reactorului Str., 077125 Magurele-Ilfov, Romania
| | - Mina Raileanu
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Department of Life and Environmental Physics, 30 Reactorului Str., 077125 Magurele-Ilfov, Romania
- Faculty of Physics, Department of Electricity, Solid State and Biophysics, University of Bucharest, 405A Atomiștilor Str., 077125 Magurele-Ilfov, Romania
| | - Speranta Avram
- Faculty of Biology, Department of Anatomy, Animal Physiology and Biophysics, University of Bucharest, 91-95, Splaiul Independenței, 050095 Bucharest, Romania
- Correspondence: (R.O.); (S.A.)
| | - Nataša Čelan Korošin
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Teodora Burlanescu
- Laboratory of Optical Processes in Nanostructure Materials, National Institute of Materials Physics, 405A Atomiștilor Str., 077125 Magurele-Ilfov, Romania
| | - Arpad Mihai Rostas
- Laboratory of Atomic Structures and Defects in Advanced Materials, LASDAM, National Institute of Materials Physics, 405A Atomiștilor Str., 077125 Magurele-Ilfov, Romania
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Živanović AS, Bukonjić AM, Jovanović-Stević S, Bogojeski J, Ćoćić D, Bijelić AP, Ratković ZR, Volarević V, Miloradović D, Tomović DL, Radić GP. Complexes of copper(II) with tetradentate S,O-ligands: Synthesis, characterization, DNA/albumin interactions, molecular docking simulations and antitumor activity. J Inorg Biochem 2022; 233:111861. [DOI: 10.1016/j.jinorgbio.2022.111861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 05/02/2022] [Accepted: 05/08/2022] [Indexed: 11/29/2022]
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Min G, Hong F, Shi C, Zhao Q, Lin N, Liu XY. Biomimetic synthesis of 2D ultra-small copper sulfide nanoflakes based on reconfiguration of the keratin secondary structure for cancer theranostics in the NIR-II region. J Mater Chem B 2022; 10:3152-3161. [PMID: 35355042 DOI: 10.1039/d2tb00046f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional transition metal dichalcogenides have attracted widespread attention in cancer theranostics due to their high specific surface area and excellent photothermal conversion properties. However, their dimensions and biodegradability have limited the exploration of the therapeutic properties of transition metal dichalcogenides. Herein, we explore the mechanism of the keratin α-helix-to-random coil transition, as an actuation mechanism for the controllable design and precise synthesis of two-dimension copper sulfide nanoflakes (CuS NFs) with high absorption in the NIR-II window. Upon mixing keratin and Cu2+, the hydrogen bonds that maintain the α-helix are broken by copper ions to form biuret coordination, while the structure of the α-helix is transformed into a random coil, providing a more scalable space for the growth of CuS NFs. The CuS NFs prepared in this way possess the great advantages of outstanding uniformity, size controllability, and biodegradability. Importantly, the CuS NFs in the NIR-II window show an excellent photothermal conversion efficiency (32.9%) and extraordinary photoacoustic signal. This work updates the fabrication of two-dimensional transition metal dichalcogenides and greatly enhances their competitiveness in the area of cancer theranostics in the NIR-II region, and provides significant theoretical and practical opportunities for the development of keratin using biomimetic synthesis.
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Affiliation(s)
- Guangzong Min
- College of Materials, Xiamen University, 422 Siming Nan Road, Xiamen 361005, China.
| | - Fengqiu Hong
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Centre for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China. .,Shenzhen Research Institute of Xiamen University, Shenzhen 518063, China
| | - Chenyang Shi
- College of Materials, Xiamen University, 422 Siming Nan Road, Xiamen 361005, China.
| | - Qingliang Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Centre for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen 361102, China. .,Shenzhen Research Institute of Xiamen University, Shenzhen 518063, China
| | - Naibo Lin
- College of Materials, Xiamen University, 422 Siming Nan Road, Xiamen 361005, China.
| | - Xiang-Yang Liu
- College of Ocean and Earth Sciences, State Key Laboratory of Marine Environmental Science (MEL), Xiamen University, Xiamen 361005, China.
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Effect of Maternal Catalase Supplementation on Reproductive Performance, Antioxidant Activity and Mineral Transport in Sows and Piglets. Animals (Basel) 2022; 12:ani12070828. [PMID: 35405818 PMCID: PMC8996845 DOI: 10.3390/ani12070828] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/17/2022] Open
Abstract
This experiment was conducted to investigate the effects of maternal catalase (CAT) supplementation on reproductive performance, antioxidant enzyme activities, mineral transport, and mRNA expression of related genes in sows and offspring. A total of 40 pregnant sows at 95 days of gestation with similar parity (3−5 parities) and back-fat thickness were assigned randomly and equally into the control (CON) group (fed a basal diet) and CAT group (fed a basal diet supplemented with 660 mg/kg CAT; CAT activity, 280 U/g). The reproductive performance was recorded, and the placenta and blood samples of sows and neonatal piglets, as well as the jejunum and ileum samples from neonatal boars (eight replicates per group), were collected. Results showed that dietary supplementation with CAT significantly decreased the intrauterine growth restriction (IUGR) rate and increased the activity of serum CAT in neonatal piglets and umbilical cords (p < 0.05). In addition, CAT supplementation tended to improve total antioxidant capacity (T-AOC) levels in the maternal serum (p = 0.089) and umbilical cords of piglets (p = 0.051). The serum calcium (Ca), manganese (Mn), and zinc (Zn) of farrowing sows and Mn concentration in the umbilical cord, and serum Ca, magnesium (Mg), copper (Cu), and Mn of neonatal piglets were significantly increased (p < 0.05) in the CAT group. CAT supplementation downregulated mRNA expression of TRPV6 and CTR1 (p < 0.05), Cu/Zn SOD (p = 0.086) in the placenta and tended to increase the mRNA expression of the glutathione peroxidase 1 (GPX1) (p = 0.084), glutathione peroxidase 4 (GPX4) (p = 0.063), and CAT (p = 0.052) genes in the ileum of piglets. These results showed that the maternal CAT supplementation improved fetal growth by decreasing the IUGR rate, and modulated antioxidant activity, as well as mineral elements in the pregnant sows and their piglets.
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Copper(II) perchlorate complexes with antipyrine: synthesis, structure, cytotoxicity and DFT calculations. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.01.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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The Cytotoxic Effect of Copper (II) Complexes with Halogenated 1,3-Disubstituted Arylthioureas on Cancer and Bacterial Cells. Int J Mol Sci 2021; 22:ijms222111415. [PMID: 34768844 PMCID: PMC8584173 DOI: 10.3390/ijms222111415] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/16/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022] Open
Abstract
A series of eight copper (II) complexes with 3-(4-chloro-3-nitrophenyl)thiourea were designed and synthesized. The cytotoxic activity of all compounds was assessed in three human cancer cell lines (SW480, SW620, PC3) and human normal keratinocytes (HaCaT). The complexes 1, 3, 5, 7 and 8 were cytotoxic to the studied tumor cells in the low micromolar range, without affecting the normal cells. The complexes 1, 3, 7 and 8 induced lactate dehydrogenase (LDH) release in all cancer cell lines, but not in the HaCaT cells. They provoked early apoptosis in pathological cells, especially in SW480 and PC3 cells. The ability of compounds 1, 3, 7 and 8 to diminish interleukin-6 (IL-6) concentration in a cell was established. For the first time, the influence of the most promising Cu (II) complexes on intensities of detoxifying and reactive oxygen species (ROS) scavenging the enzymes of tumor cells was studied. The cytotoxic effect of all copper (II) conjugates against standard and hospital bacterial strains was also proved.
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Chen K, Sheng M, Zhang J, Yan G, Li B. Plasma exosomal proteomic studies of corneal epithelial injury in diabetic and non-diabetic group. Exp Eye Res 2021; 212:108794. [PMID: 34656547 DOI: 10.1016/j.exer.2021.108794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 10/10/2021] [Accepted: 10/12/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Diabetic Keratopathy (DK) is one of the significant complications of type II diabetes (T2DM) with pathogenesis not yet clarified. Since hyperglycemia is able to change the protein components contained in plasma exosomes, liquid chromatography-tandem mass spectrometry (LC-MS/MS) is considered as feasible to analyze the expression of plasma exosomal proteins in patients with T2DM and non-diabetic patients respectively, find critical biological markers, and explore the mechanism of DK as well as potential therapeutic targets. METHOD Blood and clinical information of corneal epithelial injury in a diabetic group (the study group) and a non-diabetic group (the control group), who were patients admitted to the Department of Ophthalmology, Yangpu Hospital, Tongji University School of Medicine from July 2020 to November 2020, were collected. The qEV size exclusion method was adopted to separate exosomes from plasma. The exosomes were then identified through transmission electron microscopy (TEM), nanoparticle tracking analyzer (NTA), and Western blot. The plasma exosomes of the study group and the control group were quantitatively analyzed by proteomics. A bioinformatics method is utilized to screen differential proteins and the expression of the differential proteins was verified by Western blot. RESULT TEM indicated that the exosomes had a double-concave disc-like appearance, with a size of about 100 nm, and Western blot expressed as CD63 and TSG101. The plasma exosomes of the study group and the control group were analyzed by quantitative proteomics with a total number of 952 proteins detected of which 245 proteins existed in the ExoCarta exosomal protein database. Through adoption of P-value to screen credible differential proteins, the heat map displayed 28 differential proteins, 7 upregulated proteins, and 21 downregulated proteins; the volcano map displayed 7 upregulated proteins and 22 downregulated proteins; the PPI interaction map displayed 12 upregulated proteins and 18 downregulated proteins. Through GO enrichment analysis, it was identified that the differential protein participated in the main biological processes and was involved in regulating the cell's stimulation response to insulin, the insulin receptor signaling pathway, and the activity of glycosylphosphatidylinositol phospholipase D as well as anti-oxidation. The enriched cell components include main components such as exosomes, blood particles, and cytoplasm. KEGG enrichment analysis indicated that the target protein FLOT2 was mainly concentrated in insulin-related signaling pathways. Western blot indicated that the expression of FLOT2 in the study group was lower compared with the control group while the expression of Exo70 was higher. CONCLUSION Proteomic analysis of the study group and the control group displayed a variety of proteins in plasma exosomes. The downregulated protein FLOT2 in the study group was closely related to the occurrence, development, and complication of DK in T2DM patients. The expression status of plasma FLOT2 protein in T2DM patients is expected to be a biomarker for diagnosing and monitoring of DK.
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Affiliation(s)
- Kaichuan Chen
- Department of Ophthalmology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, China; Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Minjie Sheng
- Department of Ophthalmology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, China
| | - Jie Zhang
- Department of Ophthalmology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, China
| | - Guoquan Yan
- Institutes of Biomedical Science Fudan University, 131# Dong'an Rd, Shanghai, 200032, PR China
| | - Bing Li
- Department of Ophthalmology, Yangpu Hospital, Tongji University School of Medicine, Shanghai, 200090, China.
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Richa, Kushwaha N, Negi S, Kumar A, Zangrando E, Kataria R, Saini V. Synthesis, characterization and utility of a series of novel copper(II) complexes as excellent surface disinfectants against nosocomial infections. Dalton Trans 2021; 50:13699-13711. [PMID: 34013925 DOI: 10.1039/d1dt00199j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nosocomial infections are among the major public health concerns, especially during the ongoing Covid19 pandemic. There is a great demand for novel chemical agents that are capable of killing specific pathogens or augmenting the efficiency of existing disinfectants. Herein, we report the synthesis and comprehensive characterization (through FT-IR, HR-MS, SEM, TGA-DSC, CV, UV and SCXRD analyses) of six novel copper(II) complexes, [CuL(4X-An)] (5a-5d), [CuL(An)] (5e), and [CuL(benzhydrylamine)] (5f), and their evaluation as anti-microbial agents against WHO priority pathogens, confirming their possible use in hospital settings. The compounds were synthesized with a Schiff base (H2L) obtained by the condensation reaction of 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione (DHA) and benzohydrazide and further addition of different p-substituted aniline (An) molecules. Single crystal structure analyses revealed that the aniline derivatives are isostructural to the copper atom in a square planar coordination, while the benzhydrylamine complex forms a dimer (5f), with a square pyramidal coordination geometry for the metal. Time-kill kinetics and reduced microbial recovery studies revealed excellent bactericidal action against Staphylococcus aureus and Enterococcus faecalis. Particularly, the novel compound 5f significantly reduced microbial recovery compared to ethanol-based sanitisers. In fact, addition of 5f to 70% ethanol remarkably synergized the killing with >6-log reduction in microbial burden. Overall, our novel compounds would increase the disinfection efficacy in hospitals and industries, thereby improving the efficiency and minimizing the risk of infections.
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Affiliation(s)
- Richa
- Department of Chemistry & Centre of Advance Studies in Chemistry, Panjab University, Chandigarh, 160014, India.
| | - Namrata Kushwaha
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.
| | - Sheetal Negi
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.
| | - Ajay Kumar
- Department of Chemistry & Centre of Advance Studies in Chemistry, Panjab University, Chandigarh, 160014, India.
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste 34127, Italy
| | - Ramesh Kataria
- Department of Chemistry & Centre of Advance Studies in Chemistry, Panjab University, Chandigarh, 160014, India.
| | - Vikram Saini
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.
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Maalej W, Guionneau P, Elaoud Z. A new square pyramidal copper(II) complex [Cu(C10H24N4)Br]Br: Crystal structure, thermal analysis, Hirschfeld surfaces, electrical and semiconducting properties. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hao Y, Xing M, Gu X. Research Progress on Oxidative Stress and Its Nutritional Regulation Strategies in Pigs. Animals (Basel) 2021; 11:1384. [PMID: 34068057 PMCID: PMC8152462 DOI: 10.3390/ani11051384] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/29/2021] [Accepted: 05/03/2021] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress refers to the dramatic increase in the production of free radicals in human and animal bodies or the decrease in the ability to scavenging free radicals, thus breaking the antioxidation-oxidation balance. Various factors can induce oxidative stress in pig production. Oxidative stress has an important effect on pig performance and healthy growth, and has become one of the important factors restricting pig production. Based on the overview of the generation of oxidative stress, its effects on pigs, and signal transduction pathways, this paper discussed the nutritional measures to alleviate oxidative stress in pigs, in order to provide ideas for the nutritional research of anti-oxidative stress in pigs.
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Affiliation(s)
| | | | - Xianhong Gu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.H.); (M.X.)
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Khrenova MG, Soloveva AY, Varfolomeeva LA, Tikhonova TV, Popov VO. The O to S substitution in urea brings inhibition activity against thiocyanate dehydrogenase. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.05.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Khrenova MG, Soloveva AY, Varfolomeeva LA, Tikhonova TV, Popov VO. The O to S substitution in urea brings inhibition activity against thiocyanate dehydrogenase. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.04.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Sarakinou KM, Banti CN, Hatzidimitriou AG, Hadjikakou SK. Utilization of metal complexes formed by copper(II) acetate or nitrate, for the urea assay. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Exemplifying an archetypal thorium-EPS complexation by novel thoriotolerant Providencia thoriotolerans AM3. Sci Rep 2021; 11:3189. [PMID: 33542436 PMCID: PMC7862642 DOI: 10.1038/s41598-021-82863-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 01/27/2021] [Indexed: 12/23/2022] Open
Abstract
It is the acquisition of unique traits that adds to the enigma of microbial capabilities to carry out extraordinary processes. One such ecosystem is the soil exposed to radionuclides, in the vicinity of atomic power stations. With the aim to study thorium (Th) tolerance in the indigenous bacteria of such soil, the bacteria were isolated and screened for maximum thorium tolerance. Out of all, only one strain AM3, found to tolerate extraordinary levels of Th (1500 mg L−1), was identified to be belonging to genus Providencia and showed maximum genetic similarity with the type strain P. vermicola OP1T. This is the first report suggesting any bacteria to tolerate such high Th and we propose to term such microbes as ‘thoriotolerant’. The medium composition for cultivating AM3 was optimized using response surface methodology (RSM) which also led to an improvement in its Th-tolerance capabilities by 23%. AM3 was found to be a good producer of EPS and hence one component study was also employed for its optimization. Moreover, the EPS produced by the strain showed interaction with Th, which was deduced by Fourier Transform Infrared (FTIR) spectroscopy.
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Pavelková M, Vysloužil J, Kubová K, Pavloková S, Molinková D, Celer V, Pechová A, Mašek J, Vetchý D. Assessment of Antimicrobic, Antivirotic and Cytotoxic Potential of Alginate Beads Cross-Linked by Bivalent Ions for Vaginal Administration. Pharmaceutics 2021; 13:pharmaceutics13020165. [PMID: 33513747 PMCID: PMC7910877 DOI: 10.3390/pharmaceutics13020165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/20/2021] [Accepted: 01/25/2021] [Indexed: 11/18/2022] Open
Abstract
Antimicrobial agent abuse poses a serious threat for future pharmacotherapy, including vaginal administration. The solution can be found in simple polymeric systems with inherent antimicrobial properties without the need to incorporate drugs, for instance alginate beads cross-linked by bivalent ions. The main goal of the presented study was to provide improvement on the well-documented cytotoxicity of Cu2+ cross-linked alginate. Alginate beads were prepared by external ionotropic gelation by cross-linking with Cu2+, Ca2+ and Zn2+ ions, separately and in mixtures. Morphological properties, swelling capacity, ion release and efficacy against the most common vaginal pathogens (C. albicans, E. coli, E. faecalis and virus strain—human herpesvirus type 1) were evaluated. The prepared particles (particle size 1455.68 ± 18.71–1756.31 ± 16.58 µm) had very good sphericity (0.86 ± 0.04–0.97 ± 0.06). In mixture samples, Cu2+ hampered second ion loading, and was also released incompletely (18.75–44.8%) compared to the single ion Cu2+ sample (71.4%). Efficacy against the selected pathogens was confirmed in almost all samples. Although anticipating otherwise, ion mixture samples did not show betterment over a Cu2+ cross-linked sample in cytotoxicity–pathogen efficacy relation. However, the desired improvement was found in a single ion Zn2+ sample whose minimal inhibition concentrations against the pathogens (0.6–6.12 mM) were close to, or in the same mathematical order as, its toxic concentration of 50 (1.891 mM). In summary, these findings combined with alginate’s biocompatibility and biodegradability give the combination solid potential in antimicrobial use.
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Affiliation(s)
- Miroslava Pavelková
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, Palackého 1, 612 00 Brno, Czech Republic; (M.P.); (K.K.); (S.P.); (D.V.)
| | - Jakub Vysloužil
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, Palackého 1, 612 00 Brno, Czech Republic; (M.P.); (K.K.); (S.P.); (D.V.)
- Correspondence: ; Tel.: +420-541-562-869
| | - Kateřina Kubová
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, Palackého 1, 612 00 Brno, Czech Republic; (M.P.); (K.K.); (S.P.); (D.V.)
| | - Sylvie Pavloková
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, Palackého 1, 612 00 Brno, Czech Republic; (M.P.); (K.K.); (S.P.); (D.V.)
| | - Dobromila Molinková
- Department of Infectious Diseases and Microbiology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1, 612 42 Brno, Czech Republic; (D.M.); (V.C.)
| | - Vladimír Celer
- Department of Infectious Diseases and Microbiology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1, 612 42 Brno, Czech Republic; (D.M.); (V.C.)
| | - Alena Pechová
- Department of Animal Breeding, Animal Nutrition and Biochemistry, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1, 612 42 Brno, Czech Republic;
| | - Josef Mašek
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic;
| | - David Vetchý
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, Palackého 1, 612 00 Brno, Czech Republic; (M.P.); (K.K.); (S.P.); (D.V.)
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22
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Masi L, Ferrari S, Javaid MK, Papapoulos S, Pierroz DD, Brandi ML. Bone fragility in patients affected by congenital diseases non skeletal in origin. Orphanet J Rare Dis 2021; 16:11. [PMID: 33407701 PMCID: PMC7789665 DOI: 10.1186/s13023-020-01611-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/10/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Bone tissue represents a large systemic compartment of the human body, with an active metabolism, that controls mineral deposition and removal, and where several factors may play a role. For these reasons, several non-skeletal diseases may influence bone metabolism. It is of a crucial importance to classify these disorders in order to facilitate diagnosis and clinical management. This article reports a taxonomic classification of non-skeletal rare congenital disorders, which have an impact on bone metabolism METHODS: The International Osteoporosis Foundation (IOF) Skeletal Rare Diseases Working Group (SRD-WG), comprised of basic and clinical scientists, has decided to review the taxonomy of non-skeletal rare disorders that may alter bone physiology. RESULTS The taxonomy of non-skeletal rare congenital disorders which impact bone comprises a total of 6 groups of disorders that may influence the activity of bone cells or the characteristics of bone matrix. CONCLUSIONS This paper provides the first comprehensive taxonomy of non-skeletal rare congenital disorders with impact on bone physiology.
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Affiliation(s)
- L Masi
- Metabolic Bone Diseases Unit, University Hospital of Florence, AOU-Careggi, Florence, Italy
| | - S Ferrari
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospital, Geneva, Switzerland
| | - M K Javaid
- Oxford NIHR Musculoskeletal Biomedical Research Unit, University of Oxford, Oxford, UK
| | - S Papapoulos
- Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - D D Pierroz
- International Osteoporosis Foundation (IOF), Rue Juste-Olivier 9, 1260, Nyon, Switzerland
| | - M L Brandi
- Fondazione Italiana Ricerca sulle Malattie dell'Osso, Florence, Italy.
- Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy.
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23
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Dos Santos TM, Martins CC, Bueno DT, Nunes IJ, Busatto FF, Cargnelutti R, Luchese C, de Lazaro Casagrande O, Saffi J, Wilhelm EA, Pinheiro AC. Synthesis, molecular structure and antioxidant activity of bis [L(μ 2-chloro)copper(II)] supported by phenoxy/naphthoxy-imine ligands. J Inorg Biochem 2020; 210:111130. [PMID: 32563104 DOI: 10.1016/j.jinorgbio.2020.111130] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 05/31/2020] [Accepted: 06/06/2020] [Indexed: 02/07/2023]
Abstract
A new series of Cu(II) complexes [bis[{(μ2-chloro)-2-MeO-Ph-CH2-(N=CH)-2,4-tert-butyl-2-OC6H2)}Cu(II)] (Cu1); bis[{(μ2-chloro)-2-MeS-Ph-CH2-(N=CH)-2,4-tert-butyl-2-(OC6H2)}Cu(II)] (Cu2); bis[{(μ2-chloro)-2-MeO-Ph-CH2-(N=CH)-2-(OC10H6)} Cu(II)] (Cu3); bis[{(μ2-chloro)-2-MeS-Ph-CH2-(N=CH)-2-(OC10H6)}Cu(II)] complex (Cu4); bis[{2-MeS-Ph-CH2-(N=CH)-2,4-tert-butyl-2-(OC6H2)}Cu(II)] (Cu5)] have been synthesized and characterized by elemental analysis, IR, UV-Visible and by X-ray crystallography for Cu1, Cu4 and Cu5. In the solid state, Cu1 features of a chloro-bridged dimer complex with κ2 coordination of the monoanionic phenoxy-imine ligand onto the copper center. On the other hand, the molecular structure of Cu4 reveals the naphthoxy-imine ligand with pendant S-group coordinated to the copper atom in tridentate meridional fashion. Treatment of [Cu(OAc)2·H2O] with two equiv. of [2-MeS-Ph-CH2-(N=CH)-2,4-tert-butyl-2-(HOC6H2)] led to a monomeric complex Cu5, with the ONS-donor Schiff base acting as a bidentate ligand. The redox behavior was explored by cyclic voltammetry. The reduction/oxidation potential of Cu(II) complexes depends on the structure and conformation of the central atom in the coordination compounds. Antioxidant activities of the complexes, Cu1 - Cu5, were determined by in vitro assays such as 1,1-diphenyl-2-picryl-hydrazyl free radicals (DPPH) and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) radicals (ABTS+). The dinuclear compounds Cu1-Cu4, from the concentration of 5 μM, presented a good activity in scavenging DPPH radical. In addition, most of the Cu(II) complexes showed ABTS.+ radical-scavenging activity. The monomeric complex Cu5 at all concentrations tested showed antioxidant inability. The cytotoxicity of the Cu1 and Cu3 was determined in V79 cell line by reduction of 3(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay.
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Affiliation(s)
- Tamara Machado Dos Santos
- Programa de Pós-Graduação em Química, Grupo de Catálise e Estudos Teóricos, CCQFA - Universidade Federal de Pelotas, UFPel - CEP, 96160-000 Pelotas, RS, Brazil
| | - Carolina Cristovão Martins
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica, CCQFA - Universidade Federal de Pelotas, UFPel - CEP, 96010-900 Pelotas, RS, Brazil
| | - Danielle Tapia Bueno
- Programa de Pós-Graduação em Química, Grupo de Catálise e Estudos Teóricos, CCQFA - Universidade Federal de Pelotas, UFPel - CEP, 96160-000 Pelotas, RS, Brazil
| | - Ianka Jacondino Nunes
- Programa de Pós-Graduação em Química, Grupo de Catálise e Estudos Teóricos, CCQFA - Universidade Federal de Pelotas, UFPel - CEP, 96160-000 Pelotas, RS, Brazil
| | - Franciele Faccio Busatto
- Laboratório de Genética Toxicológica, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Roberta Cargnelutti
- Departamento de Química, Universidade Federal de Santa Maria, Av. Roraima, 1000, Santa Maria, RS 97105-900, Brazil
| | - Cristiane Luchese
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica, CCQFA - Universidade Federal de Pelotas, UFPel - CEP, 96010-900 Pelotas, RS, Brazil
| | - Osvaldo de Lazaro Casagrande
- Laboratório de Catálise Molecular, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, RS 90501-970, Brazil
| | - Jenifer Saffi
- Laboratório de Genética Toxicológica, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Ethel Antunes Wilhelm
- Programa de Pós-Graduação em Bioquímica e Bioprospecção, Laboratório de Pesquisa em Farmacologia Bioquímica, CCQFA - Universidade Federal de Pelotas, UFPel - CEP, 96010-900 Pelotas, RS, Brazil
| | - Adriana Castro Pinheiro
- Programa de Pós-Graduação em Química, Grupo de Catálise e Estudos Teóricos, CCQFA - Universidade Federal de Pelotas, UFPel - CEP, 96160-000 Pelotas, RS, Brazil.
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Chkirate K, Fettach S, El Hafi M, Karrouchi K, Elotmani B, Mague JT, Radi S, Faouzi MEA, Adarsh NN, Essassi EM, Garcia Y. Solvent induced supramolecular polymorphism in Cu(II) coordination complex built from 1,2,4-triazolo[1,5-a]pyrimidine: Crystal structures and anti-oxidant activity. J Inorg Biochem 2020; 208:111092. [PMID: 32461023 DOI: 10.1016/j.jinorgbio.2020.111092] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 04/17/2020] [Accepted: 04/18/2020] [Indexed: 12/27/2022]
Abstract
Two Cu(II) coordination complexes, C1 and C2 of the formula [Cu(4)2(H2O)2], have been prepared by reaction between CuCl2·2H2O and 7-ethoxycarbonylmethyl-5-methyl-1,2,4[1,5-a]pyrimidine (L) in a 1:2 M:L molar ratio. The L molecule decomposes during the reaction process into 7-carboxy-5-methyl-[1,2,4]-triazolo[1,5-a]pyrimidine (4) through an intermediate, ethyl 2,2-dihydroxy-2-(5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)acetate (5), which has been isolated and its crystal structure determined by X-ray diffraction. The X-ray analysis of the single crystals of [Cu(4)2(H2O)2] obtained from the slow evaporation of EtOH and MeOH, separately, revealed the formation of "solvent induced" polymorphs C1 and C2, respectively. The primary supramolecular synthon for C1 and C2 are six membered ring, and square shaped hydrogen bonded architecture, respectively. The self-assembly of such synthons resulted in a two dimensional hydrogen bonded sheet supported by OH⋯O interactions. In addition, the antioxidant properties of the ligands and its complexes were evaluated in vitro using 1,1-diphenyl-2-picrylhydrazyl acid, 2,2'-azino-bis (3-ethylbenzothiazoline-6 sulfonic acid radical scavenging methods and ferric reducing antioxidant power.
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Affiliation(s)
- Karim Chkirate
- LCOH, Département de Chimie, Faculté des Sciences, Université Mohamed V, BP1014, Rabat 10100, Morocco
| | - Saad Fettach
- Biopharmaceutical and Toxicological Analysis Research Team, Laboratory of Pharmacology and Toxicology, Pharmacokinetic Research Team, Faculty of Medicine and Pharmacy, University Mohammed V of Rabat, Morocco
| | - Mohamed El Hafi
- LCOH, Département de Chimie, Faculté des Sciences, Université Mohamed V, BP1014, Rabat 10100, Morocco
| | - Khalid Karrouchi
- Laboratory of Analytical Chemistry and Bromatology, Faculty of Medicine and Pharmacy, Mohamed V University, Rabat, Morocco
| | - Bouchaib Elotmani
- LCOH, Département de Chimie, Faculté des Sciences, Université Mohamed V, BP1014, Rabat 10100, Morocco
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Smaail Radi
- LCAE, Département de Chimie, Faculté des Sciences, Université Mohamed I, BP 524, 60 000 Oujda, Morocco
| | - My El Abbes Faouzi
- Biopharmaceutical and Toxicological Analysis Research Team, Laboratory of Pharmacology and Toxicology, Pharmacokinetic Research Team, Faculty of Medicine and Pharmacy, University Mohammed V of Rabat, Morocco
| | - N N Adarsh
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - El Mokhtar Essassi
- LCOH, Département de Chimie, Faculté des Sciences, Université Mohamed V, BP1014, Rabat 10100, Morocco
| | - Yann Garcia
- Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium.
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25
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Muñoz VA, Dimarco Palencia FCD, Sancho MI, Miskoski S, García NA, Ferrari GV, Montaña MP. Experimental and Theoretical Study of the Stability of the Complex Fisetin-Cu(II) and A Comparative Study of Free Ligand and Complex Interaction with Molecular Singlet Oxygen. Photochem Photobiol 2020; 96:815-825. [PMID: 31912514 DOI: 10.1111/php.13213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 12/19/2019] [Indexed: 12/20/2022]
Abstract
In this work, the flavonol fisetin was selected in order to study its reactivity against Cu(II), a metal ion of interest in biological media and industry. The stoichiometry and apparent formation constant of the complex in ethanolic medium at 25°C were evaluated using spectrophotometric techniques. The resulting stoichiometry was a 1:1 ligand:metal complex, and a log K = 5.17 ± 0.12 was determined. Since two possible chelation sites can be proposed for the complex formation, quantum chemistry calculations were performed on these structures. Calculations suggest that the hydroxyl-keto site is more stable for the complex formation than the catechol site. Flavonoids could exert protection against oxidative damage caused by reactive oxygen species, and this biological activity could be affected by chelation with metal ions. This led us to perform a study on the interaction of both, free flavonoid and complex, with reactive oxygen species. Our results showed both compounds quench molecular singlet oxygen photogenerated with visible light, mainly in a physical fashion. In order to analyze a possible protective effect of flavonoid and its complex against oxidative damage in biological environments, the amino acid tryptophan was selected as a model oxidation system. Free flavonoid does not have a marked protective effect, whereas its complex showed a relevant protective effect.
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Affiliation(s)
- Vanesa A Muñoz
- Facultad de Química, Bioquímica y Farmacia, Área de Química Física, Instituto de Química de San Luis INQUISAL (CONICET-UNSL), San Luis, Argentina
| | - Frida C D Dimarco Palencia
- Facultad de Química, Bioquímica y Farmacia, Área de Química Física, Instituto de Química de San Luis INQUISAL (CONICET-UNSL), San Luis, Argentina
| | - Matias I Sancho
- Facultad de Química, Bioquímica y Farmacia, Área de Química Física, Instituto Multidisciplinario de Investigaciones Biológicas San Luis IMIBIO-SL (CONICET-UNSL), San Luis, Argentina
| | - Sandra Miskoski
- Departamento de Química, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Argentina
| | - Norman A García
- Departamento de Química, Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, Argentina
| | - Gabriela V Ferrari
- Facultad de Química, Bioquímica y Farmacia, Área de Química Física, Instituto de Química de San Luis INQUISAL (CONICET-UNSL), San Luis, Argentina
| | - María Paulina Montaña
- Facultad de Química, Bioquímica y Farmacia, Área de Química Física, Instituto de Química de San Luis INQUISAL (CONICET-UNSL), San Luis, Argentina
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26
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Sanad SG, Shebl M. Conductance studies on complex formation of nano Cu(NO3)2.2.5H2O with 4,6-diacetylresorcinol in mixed solvents. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Wang D, Tang G, Yang Z, Li X, Chai G, Liu T, Cao X, Pan B, Li J, Sheng G, Zheng X, Ren Z. Long-term impact of heavy metals on the performance of biological wastewater treatment processes during shock-adaptation-restoration phases. JOURNAL OF HAZARDOUS MATERIALS 2019; 373:152-159. [PMID: 30909140 DOI: 10.1016/j.jhazmat.2019.03.069] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/15/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Abstract
The present work investigated the long-term (30 days of shock-adaptation and 60 days of restoration) impact of Cu2+, Hg2+ and Ag+ shock loading on the performance of biological wastewater treatment processes. Under the same inhibitory concentration (IC15), Cu2+ had the most significant impact on the treatment efficiency. During the shock-adaptation phase, Ag+ led to up to 4 times of biopolymers generation compared to that of the blank one; Hg2+ inhibited the nitrification process but showed little influence on other parameters; Cu2+ and Ag+ inhibited the activity of sDHA completely and decreased the content of ATP significantly, as well they caused abnormal ROS generation and corresponding CAT and SOD increment. Till 60 days of restoration can the activity of enzymes be restored to the control level, which agreed well with the results of effluent quality. Cu2+ decreased the biodiversity of the sludge to a large extent, followed by Ag+ and Hg2+. At the phylum level, Verrucomicrobia was decreased nearly to zero after 30 days of Cu2+ shock. At the genera level, Zoogloea was almost vanished after 15 days of Cu2+ shock.
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Affiliation(s)
- Dongqi Wang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Gang Tang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Zhangjie Yang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Xiaoxiao Li
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Guodong Chai
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Tong Liu
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Xin Cao
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Baozhu Pan
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Jiake Li
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China
| | - Guoping Sheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Xing Zheng
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, 710048, China.
| | - Zhijun Ren
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300130, China.
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