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Morán-Serradilla C, Plano D, Sharma AK, Sanmartín C. Following the Trace of Cyclodextrins on the Selenium and Tellurium Odyssey. Int J Mol Sci 2024; 25:7799. [PMID: 39063040 PMCID: PMC11277100 DOI: 10.3390/ijms25147799] [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: 06/06/2024] [Revised: 07/09/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
There is an urgent need to develop safer and more effective modalities for the treatment of numerous pathologies due to the increasing rates of drug resistance, undesired side effects, poor clinical outcomes, etc. Over the past decades, cyclodextrins (CDs) have gathered great attention as potential drug carriers due to their ability to enhance their bioactivities and properties. Likewise, selenium (Se) and tellurium (Te) have been extensively studied during the last decades due to their possible therapeutical applications. Although there is limited research on the relationship between Se and Te and CDs, herein, we highlight different representative examples of the advances related to this topic as well as give our view on the future directions of this emerging area of research. This review encompasses three different aspects of this relationship: (1) modification of the structure of the different CDs; (2) formation of host-guest interaction complexes of naïve CDs with Se and Te derivatives in order to overcome specific limitations of the latter; and (3) the use of CDs as catalysts to achieve novel Se and Te compounds.
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Affiliation(s)
- Cristina Morán-Serradilla
- Department of Pharmaceutical Sciences, University of Navarra, Irunlarrea 1, E-31008 Pamplona, Spain; (C.M.-S.); (D.P.)
| | - Daniel Plano
- Department of Pharmaceutical Sciences, University of Navarra, Irunlarrea 1, E-31008 Pamplona, Spain; (C.M.-S.); (D.P.)
| | - Arun K. Sharma
- Department of Pharmacology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, USA;
- Penn State Cancer Institute, 400 University Drive, Hershey, PA 17033, USA
| | - Carmen Sanmartín
- Department of Pharmaceutical Sciences, University of Navarra, Irunlarrea 1, E-31008 Pamplona, Spain; (C.M.-S.); (D.P.)
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2
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Tripathi A, Khan A, Kiran P, Shetty H, Srivastava R. Screening of AS101 analog, organotellurolate (IV) compound 2 for its in vitro biocompatibility, anticancer, and antibacterial activities. Amino Acids 2023:10.1007/s00726-023-03280-7. [PMID: 37227510 DOI: 10.1007/s00726-023-03280-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 05/10/2023] [Indexed: 05/26/2023]
Abstract
Organotellurium compounds are being well researched as potential candidates for their functional roles in therapeutic and clinical biology. Here, we report the in vitro anticancer and antibacterial activities of an AS101 analog, cyclic zwitterionic organotellurolate (IV) compound 2 [Te-{CH2CH(NH3+)COO}(Cl)3]. Different concentrations of compound 2 were exposed to fibroblast L929 and breast cancer MCF-7 cell lines to study its effect on cell viability. The fibroblast cells with good viability confirmed the biocompatibility, and compound 2 also was less hemolytic on RBCs. A cytotoxic effect on MCF-7 breast cancer cell line investigated compound 2 to be anti-cancerous with IC50 value of 2.86 ± 0.02 µg/mL. The apoptosis was confirmed through the cell cycle phase arrest of the organotellurolate (IV) compound 2. Examination of the antibacterial potency compound 2 was done based on the agar disk diffusion, minimum inhibitory concentration, and time-dependent assay for the Gram-positive Bacillus subtilis and Gram-negative Pseudomonas putida. For both bacterial strains, tests were performed with the concentration range of 3.9-500 μg/mL, and the minimum inhibition concentration value was found to be 125 μg/mL. The time-dependent assay suggested the bactericidal activity of organotellurolate (IV) compound, 2 against the bacterial strains.
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Affiliation(s)
- Abhishek Tripathi
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Amreen Khan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
- Center for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Pallavi Kiran
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Harsha Shetty
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India.
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3
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Alves ÂVF, Melo CR, Chagas-Neto JL, Amaral RG, Ambrósio SR, Moreira MR, Veneziani RCS, Cardoso JC, Severino P, Gondak RO, Souto EB, de Albuquerque-Júnior RLC. Ent-kaurenoic acid-enriched Mikania glomerata leaves-complexed β-cyclodextrin: Pharmaceutical development and in vivo antitumor activity in a sarcoma 180 mouse model. Int J Pharm 2023; 631:122497. [PMID: 36529360 DOI: 10.1016/j.ijpharm.2022.122497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/30/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
The extract obtained from Mikania glomerata leaves rich in ent-kaurenoic acid (ERKA) shows cytotoxic activity in vitro, but its hydrophobic nature and thermosensitivity are issues to be solved prior to in vivo antitumor studies. The purpose of this study was to investigate the antitumor activity of inclusion complexes formed between ERKA and β-cyclodextrin (ERKA:β-CD) in rodents. ERKA:β-CD complexes obtained by malaxation (MX) and co-evaporation (CE) methods were firstly characterized regarding their physical properties, encapsulation efficiency, and cytotoxicity againts L929 cells. The antitumor activity study was then performed in mice with sarcoma 180 treated with saline, 5-fluouracil (5FU) and ERKA:β-CD at 30, 100 and 300 µg/kg. The weight, volume, percentage of inhibition growth, gross and pathological features and positivity for TUNEL, ki67, NFκB and NRF2 in the tumors were assessed. Serum lactate-dehydrogenase activity (LDH), white blood cells count (WBC) and both gross and pathological features of the liver, kidneys and spleen were also evaluated. The formation of the inclusion complexes was confirmed by thermal analysis and FTIR, and they were non-toxic for L929 cells. The MX provided a better complexation efficiency. ERKA:β-CD300 promoted significant tumor growth inhibition, and attenuated the tumor mitotic activity and necrosis content, comparable to 5-fluorouracil. ERKA:β-CD300 also increased TUNEL-detected cell death, reduced Ki67 and NF-kB immunoexpression, and partially inhibited the serum LDH activity. No side effect was observed in ERKA:β-CD300-treated animals. The ERKA:β-CD inclusion complexes at 300 µg/kg displays antitumour activity in mice with low systemic toxicity, likely due to inhibition on the NF-kB signaling pathway and LDH activity.
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Affiliation(s)
- Ângela V F Alves
- Institute of Technology and Research, University of Tiradentes, Av. Murilo Dantas, 300, Bairro Farolândia, 49032-490 Aracaju, Sergipe, Brazil
| | - Carlisson R Melo
- Institute of Technology and Research, University of Tiradentes, Av. Murilo Dantas, 300, Bairro Farolândia, 49032-490 Aracaju, Sergipe, Brazil
| | - José L Chagas-Neto
- School of Dentistry, University of Tiradentes, Av. Murilo Dantas, 300, Bairro Farolândia, 49032-490 Aracaju, Sergipe, Brazil
| | - Ricardo G Amaral
- Department of Physiology, Federal University of Sergipe, 49100-000 São Cristóvão, Sergipe, Brazil
| | - Sérgio R Ambrósio
- Research Group in Exact and Technological, University of Franca, Av. Dr. Armando de Salles Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | - Monique R Moreira
- Research Group in Exact and Technological, University of Franca, Av. Dr. Armando de Salles Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | - Rodrigo C S Veneziani
- Research Group in Exact and Technological, University of Franca, Av. Dr. Armando de Salles Oliveira 201, 14404-600 Franca, São Paulo, Brazil
| | - Juliana C Cardoso
- Institute of Technology and Research, University of Tiradentes, Av. Murilo Dantas, 300, Bairro Farolândia, 49032-490 Aracaju, Sergipe, Brazil
| | - Patricia Severino
- Institute of Technology and Research, University of Tiradentes, Av. Murilo Dantas, 300, Bairro Farolândia, 49032-490 Aracaju, Sergipe, Brazil
| | - Rogério O Gondak
- Department of Pathology, Federal University of Santa Catarina, R. Delfino Conti, S/N, 88040-370 Florianópolis, Santa Catarina, Brazil
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy of University of Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal; REQUIMTE/UCIBIO, Faculty of Pharmacy of University of Porto, R. Jorge de Viterbo Ferreira 228, 4050-313 Porto, Portugal.
| | - Ricardo L C de Albuquerque-Júnior
- Department of Pathology, Federal University of Santa Catarina, R. Delfino Conti, S/N, 88040-370 Florianópolis, Santa Catarina, Brazil.
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4
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Fan Z, Xu H. Recent Progress in the Biological Applications of Reactive Oxygen Species-Responsive Polymers. POLYM REV 2019. [DOI: 10.1080/15583724.2019.1641515] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Zhiyuan Fan
- Department of Chemistry, Tsinghua University, Key Lab of Organic Optoelectronics and Molecular Engineering, Beijing, P. R. China
| | - Huaping Xu
- Department of Chemistry, Tsinghua University, Key Lab of Organic Optoelectronics and Molecular Engineering, Beijing, P. R. China
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5
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Zare B, Nami M, Shahverdi AR. Tracing Tellurium and Its Nanostructures in Biology. Biol Trace Elem Res 2017; 180:171-181. [PMID: 28378115 DOI: 10.1007/s12011-017-1006-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 03/28/2017] [Indexed: 12/15/2022]
Abstract
Tellurium (Te) is a semimetal rare element in nature. Together with oxygen, sulfur (S), and selenium (Se), Te is considered a member of chalcogen group. Over recent decades, Te applications continued to emerge in different fields including metallurgy, glass industry, electronics, and applied chemical industries. Along these lines, Te has recently attracted research attention in various fields. Though Te exists in biologic organisms such as microbes, yeast, and human body, its importance and role and some of its potential implications have long been ignored. Some promising applications of Te using its inorganic and organic derivatives including novel Te nanostructures are being introduced. Before discovery and straightforward availability of antibiotics, Te had considered and had been used as an antibacterial element. Antilishmaniasis, antiinflammatory, antiatherosclerotic, and immuno-modulating properties of Te have been described for many years, while the innovative applications of Te have started to emerge along with nanotechnological advances over the recent years. Te quantum dots (QDs) and related nanostructures have proposed novel applications in the biological detection systems such as biosensors. In addition, Te nanostructures are used in labeling, imaging, and targeted drug delivery systems and are tested for antibacterial or antifungal properties. In addition, Te nanoparticles show novel lipid-lowering, antioxidant, and free radical scavenging properties. This review presents an overview on the novel forms of Te, their potential applications, as well as related toxicity profiles.
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Affiliation(s)
- Bijan Zare
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Lane 29, Ghasrdasht Street, Shiraz, 187918989, Iran.
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Mohammad Nami
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Lane 29, Gasrdasht Street, Shiraz, 187918989, Iran
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Lane 29, Gasrdasht Street, Shiraz, 187918989, Iran
| | - Ahmad-Reza Shahverdi
- Department of Pharmaceutical Biotechnology and Recombinant Vaccine Research Center, Tehran University of Medical Sciences, School of Pharmacy, Enghelab Avenue, Tehran, Iran
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7
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Bortoli M, Torsello M, Bickelhaupt FM, Orian L. Role of the Chalcogen (S, Se, Te) in the Oxidation Mechanism of the Glutathione Peroxidase Active Site. Chemphyschem 2017; 18:2990-2998. [DOI: 10.1002/cphc.201700743] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Marco Bortoli
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; Via Marzolo 1 35129 Padova Italy
| | | | - F. Matthias Bickelhaupt
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM); Vrije Universiteit Amsterdam; De Boelelaan 1083 1081 HV Amsterdam The Netherlands
- Institute for Molecules and Materials (IMM); Radboud University; Heyendaalseweg 135 6525 J Nijmegen The Netherlands
| | - Laura Orian
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; Via Marzolo 1 35129 Padova Italy
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8
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Caracelli I, Maganhi SH, de Oliveira Cardoso J, Cunha RL, Vega-Teijido MA, Zukerman-Schpector J, Tiekink ER. Crystallographic and docking (Cathepsins B, K, L and S) studies on bioactive halotelluroxetanes. Z KRIST-CRYST MATER 2017. [DOI: 10.1515/zkri-2017-2079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The molecular structures of the halotelluroxetanes p-MeOC6H4Te(X)[C(=C(H)X′)C(CH2)nO], X=X′=Cl and n=6 (1) and X=Cl, X′=Br and n=5 (4), show similar binuclear aggregates sustained by {· · ·Te–O}2 cores comprising covalent Te–O and secondary Te· · ·O interactions. The resulting C2ClO2(lone-pair) sets define pseudo-octahedral geometries. In each structure, C–X· · ·π(arene) interactions lead to supramolecular layers. Literature studies have shown these and related compounds (i.e. 2: X=X′=Cl and n=5; 3: X=X′=Br and n=5) to inhibit Cathepsins B, K, L and S to varying extents. Molecular docking calculations have been conducted on ligands (i.e. cations derived by removal of the tellurium-bound X atoms) 1′–3′ (note 3′=4′) enabling correlations between affinity for sub-sites and inhibition. The common feature of all docked complexes was the formation of a Te–S covalent bond with cysteine residues, the relative stability of the ligands with an E-configuration and the formation of a C–O· · ·π interaction with the phenyl ring; for 1′ the Te–S covalent bond was weak, a result correlating with its low inhibition profile. At the next level differences are apparent, especially with respect to the interactions formed by the organic-ligand-bound halides. While these atoms do not form specific interactions in Cathepsins B and K, in Cathepsin L, these halides are involved in C–O· · ·X halogen bonds.
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Affiliation(s)
- Ignez Caracelli
- BioMat, Departamento de Física , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Stella H. Maganhi
- BioMat, Programa de Pós-graduação em Biotecnologia , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Josiane de Oliveira Cardoso
- BioMat, Departamento de Física , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Rodrigo L.O.R. Cunha
- Center of Natural Sciences and Humanities, Federal University of ABC , Santo André, São Paulo 09210-180 , Brazil
| | - Mauricio Angel Vega-Teijido
- Laboratório de Cristalografia, Estereodinâmica e Modelagem Molecular , Departamento de Química , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Julio Zukerman-Schpector
- Laboratório de Cristalografia, Estereodinâmica e Modelagem Molecular , Departamento de Química , Universidade Federal de São Carlos , C.P. 676 , São Carlos, SP, 13565-905 , Brazil
| | - Edward R.T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology , Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
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9
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Li L, Duan Z, Chen J, Zhou Y, Zhu L, Xiang Y, Xia D. Molecular recognition with cyclodextrin polymer: a novel method for removing sulfides efficiently. RSC Adv 2017. [DOI: 10.1039/c7ra06782h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of cyclodextrin polymers (CDPs) were synthesized and they were used for removing different sulfides by molecular recognition. It's showed that β-CDP has a more suitable cavity size for removing DBT.
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Affiliation(s)
- Linlin Li
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Qingdao 266580
- People's Republic of China
| | - Zunbin Duan
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Qingdao 266580
- People's Republic of China
| | - Jinshe Chen
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Qingdao 266580
- People's Republic of China
| | - Yulu Zhou
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Qingdao 266580
- People's Republic of China
| | - Lijun Zhu
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Qingdao 266580
- People's Republic of China
| | - Yuzhi Xiang
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Qingdao 266580
- People's Republic of China
| | - Daohong Xia
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Qingdao 266580
- People's Republic of China
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Kuah E, Toh S, Yee J, Ma Q, Gao Z. Enzyme Mimics: Advances and Applications. Chemistry 2016; 22:8404-30. [PMID: 27062126 DOI: 10.1002/chem.201504394] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 12/29/2022]
Abstract
Enzyme mimics or artificial enzymes are a class of catalysts that have been actively pursued for decades and have heralded much interest as potentially viable alternatives to natural enzymes. Aside from having catalytic activities similar to their natural counterparts, enzyme mimics have the desired advantages of tunable structures and catalytic efficiencies, excellent tolerance to experimental conditions, lower cost, and purely synthetic routes to their preparation. Although still in the midst of development, impressive advances have already been made. Enzyme mimics have shown immense potential in the catalysis of a wide range of chemical and biological reactions, the development of chemical and biological sensing and anti-biofouling systems, and the production of pharmaceuticals and clean fuels. This Review concerns the development of various types of enzyme mimics, namely polymeric and dendrimeric, supramolecular, nanoparticulate and proteinic enzyme mimics, with an emphasis on their synthesis, catalytic properties and technical applications. It provides an introduction to enzyme mimics and a comprehensive summary of the advances and current standings of their applications, and seeks to inspire researchers to perfect the design and synthesis of enzyme mimics and to tailor their functionality for a much wider range of applications.
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Affiliation(s)
- Evelyn Kuah
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Seraphina Toh
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Jessica Yee
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Qian Ma
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Zhiqiang Gao
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax.
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Zakrzewski J, Huras B, Kiełczewska A, Krawczyk M. Reactions of nitroxides 16. First nitroxides containing tellurium atom. RSC Adv 2016. [DOI: 10.1039/c6ra15880c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Five- and six-membered nitroxides with a tellurium containing moiety were synthesized by the addition of nitroxyl amines to phenyltellanyl alkylene isothiocyanates.
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Affiliation(s)
| | - Bogumiła Huras
- Institute of Industrial Organic Chemistry
- 03-236 Warsaw
- Poland
| | | | - Maria Krawczyk
- Institute of Industrial Organic Chemistry
- 03-236 Warsaw
- Poland
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12
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Wang L, Fan F, Cao W, Xu H. Ultrasensitive ROS-Responsive Coassemblies of Tellurium-Containing Molecules and Phospholipids. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16054-60. [PMID: 26154159 DOI: 10.1021/acsami.5b04419] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Reactive oxygen species (ROS) play crucial roles in cell signaling and redox homeostasis and are strongly related to metabolic activities. The increase of the ROS concentration in organisms can result in several diseases, such as cardiovascular diseases and cancer. The concentration of ROS in biologically relevant conditions is typically as low as around tens of micromolars to 100 μM H2O2, which makes it necessary to develop ultrasensitive ROS-responsive systems. A general approach is reported here to fabricate an ultrasensitive ROS-responsive system via coassembly between tellurium-containing molecules and phospholipids, combining the ROS-responsiveness of tellurium and the biocompatibility of phospholipids. By using dynamic light scattering, transmission electron microscopy, scanning electron microscopy, and NMR spectra, coassembly behaviors and the responsiveness of the coassemblies have been investigated. These coassemblies can respond to 100 μM H2O2, which is a biologically relevant ROS concentration, and demonstrate reversible redox properties.
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Affiliation(s)
- Lu Wang
- †Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fuqiang Fan
- †Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
- ‡The Research Centre for Molecular Science and Engineering, Northeastern University, Shenyang, 110004, People's Republic of China
| | - Wei Cao
- †Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Huaping Xu
- †Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
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Reis de Sá LF, Toledo FT, de Sousa BA, Gonçalves AC, Tessis AC, Wendler EP, Comasseto JV, Dos Santos AA, Ferreira-Pereira A. Synthetic organotelluride compounds induce the reversal of Pdr5p mediated fluconazole resistance in Saccharomyces cerevisiae. BMC Microbiol 2014; 14:201. [PMID: 25062749 PMCID: PMC4222501 DOI: 10.1186/s12866-014-0201-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 07/18/2014] [Indexed: 12/22/2022] Open
Abstract
Background Resistance to fluconazole, a commonly used azole antifungal, is a challenge for the treatment of fungal infections. Resistance can be mediated by overexpression of ABC transporters, which promote drug efflux that requires ATP hydrolysis. The Pdr5p ABC transporter of Saccharomyces cerevisiae is a well-known model used to study this mechanism of antifungal resistance. The present study investigated the effects of 13 synthetic compounds on Pdr5p. Results Among the tested compounds, four contained a tellurium-butane group and shared structural similarities that were absent in the other tested compounds: a lateral hydrocarbon chain and an amide group. These four compounds were capable of inhibiting Pdr5p ATPase activity by more than 90%, they demonstrated IC50 values less than 2 μM and had an uncompetitive pattern of Pdr5p ATPase activity inhibition. These organotellurides did not demonstrate cytotoxicity against human erythrocytes or S. cerevisiae mutant strains (a strain that overexpress Pdr5p and a null mutant strain) even in concentrations above 100 μM. When tested at 100 μM, they could reverse the fluconazole resistance expressed by both the S. cerevisiae mutant strain that overexpress Pdr5p and a clinical isolate of Candida albicans. Conclusions We have identified four organotellurides that are promising candidates for the reversal of drug resistance mediated by drug efflux pumps. These molecules will act as scaffolds for the development of more efficient and effective efflux pump inhibitors that can be used in combination therapy with available antifungals.
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Affiliation(s)
| | | | | | | | | | | | | | - Alcindo A Dos Santos
- Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Laboratório de Bioquímica Microbiana, CCS, Universidade Federal do Rio de Janeiro, Rio de Janeiro/RJ, Brazil.
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14
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Wang L, Zou H, Dong Z, Zhou L, Li J, Luo Q, Zhu J, Xu J, Liu J. Temperature-driven switching of the catalytic activity of artificial glutathione peroxidase by the shape transition between the nanotubes and vesicle-like structures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:4013-4018. [PMID: 24654792 DOI: 10.1021/la5008236] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Smart supramolecular nanoenzymes with temperature-driven switching property have been successfully constructed by the self-assembly of supra-amphiphiles formed by the cyclodextrin-based host-guest chemistry. The self-assembled nanostructures were catalyst-functionalized and thermosensitively-functionalized through conveniently linking the catalytic center of glutathione peroxidase and thermosensitive polymer to the host cyclodextrin molecules.The ON-OFF switches for the peroxidase activity by reversible transformation of nanostructures from tube to sphere have been achieved through changing the temperature. We anticipate that such intelligent enzyme mimics could be developed to use in an antioxidant medicine with controlled catalytic efficiency according to the needs of the human body in the future.
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Affiliation(s)
- Liang Wang
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University , 2699 Qianjin Road, Changchun 130012, P. R. China
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15
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Hastings CJ, Bergman RG, Raymond KN. Origins of Large Rate Enhancements in the Nazarov Cyclization Catalyzed by Supramolecular Encapsulation. Chemistry 2014; 20:3966-73. [DOI: 10.1002/chem.201303885] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Indexed: 12/13/2022]
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16
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Miao L, Zhang X, Si C, Gao Y, Zhao L, Hou C, Shoseyov O, Luo Q, Liu J. Construction of a highly stable artificial glutathione peroxidase on a protein nanoring. Org Biomol Chem 2014; 12:362-9. [DOI: 10.1039/c3ob41561a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Jiao A, Zhou X, Xu X, Jin Z. Molecular dynamics simulations of cyclodextrin–cumene hydroperoxide complexes in water. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.02.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Amorati R, Valgimigli L, Dinér P, Bakhtiari K, Saeedi M, Engman L. Multi-faceted Reactivity of Alkyltellurophenols Towards Peroxyl Radicals: Catalytic Antioxidant Versus Thiol-Depletion Effect. Chemistry 2013; 19:7510-22. [DOI: 10.1002/chem.201300451] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Indexed: 11/08/2022]
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19
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Jiao A, Yang N, Xu X, Jin Z. Study on the intermediate ions formed by glutathione peroxidase mimic 2,2'-ditellurobis(2-deoxy-β-cyclodextrin) by electrospray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:319-324. [PMID: 23239379 DOI: 10.1002/rcm.6455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 10/18/2012] [Accepted: 10/25/2012] [Indexed: 06/01/2023]
Abstract
RATIONALE 2,2'-Ditellurobis(2-deoxy-β-cyclodextrin) (2-TeCD) is one of the most well-known glutathione peroxidase (GPx) mimics. However, because the critical reaction intermediates had not previously been isolated or directly detected due to its short lifetime, the catalytic mechanism of 2-TeCD is not very clear and further experiments are needed to characterize each of the intermediates in the catalytic cycle. METHODS Using electrospray ionization mass (and tandem) spectrometry (ESI-MS and ESI-MS/MS) experiments, the decomposition of hydrogen peroxide at the expense of glutathione (GSH) catalyzed by 2-TeCD was monitored on-line. RESULTS The key intermediates were successfully intercepted and structurally characterized for the first time by coupling a microreactor on-line to the ESI ion source, which permitted the fast screening of intermediates directly from solution. CONCLUSIONS The catalytic mechanism of 2-TeCD catalysis has been elaborated based on mass spectrometric data and exerted its peroxidase activity via tellurol, tellurenic acid, and tellurosulfide, in analogy with natural GPX.
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Affiliation(s)
- Aiquan Jiao
- The State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
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Vij P, Hardej D. Evaluation of tellurium toxicity in transformed and non-transformed human colon cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2012; 34:768-782. [PMID: 23068156 DOI: 10.1016/j.etap.2012.09.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 09/08/2012] [Indexed: 06/01/2023]
Abstract
Diphenyl ditelluride (DPDT) and tellurium tetrachloride (TeCl(4)) were evaluated for toxicity in transformed (HT-29, Caco-2) and non-transformed colon cells (CCD-18Co). Significant decreases in viability were observed with DPDT exposure in HT-29 (62.5-1000 μM), Caco-2 (31.25-1000 μM) and CCD-18Co cells (500-1000 μM) and with TeCl(4) in HT-29 (31.25-1000 μM), Caco-2 (31.25-1000 μM) and CCD-18Co cells (500-1000 μM). Light microscopy confirmed viability analysis. Significant increases in caspase 3/7 and 9 activity were observed with DPDT in HT-29 (500-1000 μM) and CCD-18Co cells (1000 μM) indicating apoptosis. No significant increases in caspases were seen with TeCl(4) indicating necrosis. Apoptosis or necrosis was confirmed with fluorescent staining (FITC-Annexin, Hoechst 33342 and Ethidium Homodimer). Significant decreases in GSH/GSSG ratio were observed with DPDT in HT-29 (62.5-1000 μM), and CCD-18Co cells (1000 μM) and with TeCl(4) in HT-29 (62.5-1000 μM) and CCD-18Co cells (250-1000 μM). We concluded that cells treated with DPDT resulted in apoptosis and TeCl(4) treatment in necrosis. GSH/GSSG ratio shifts indicate oxidative mechanisms are involved.
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Affiliation(s)
- Puneet Vij
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St John's University, Queens, NY 11439, USA
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Jiao A, Yang N, Wang J, Xu X, Jin Z. Cyclodextrin-derived chalcogenides as glutathione peroxidase mimics and their protection of mitochondria against oxidative damage. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0156-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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22
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Jiao A, Yang N, Wang J, Toure A, Xu X, Jin Z. Organotellurium-bridged cyclodextrin dimers as artificial glutathione peroxidase models. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0120-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Synthesis and kinetic evaluation of a trifunctional enzyme mimic with a dimanganese active centre. J Inorg Biochem 2011; 105:283-8. [DOI: 10.1016/j.jinorgbio.2010.09.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2010] [Revised: 09/08/2010] [Accepted: 09/09/2010] [Indexed: 11/22/2022]
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24
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Huang X, Yin Y, Liu J. Design of Artificial Selenoenzymes Based on Macromolecular Scaffolds. Macromol Biosci 2010; 10:1385-96. [DOI: 10.1002/mabi.201000134] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Lin T, Ding Z, Li N, Xu J, Luo G, Liu J, Shen J. 2-Tellurium-bridged β-cyclodextrin, a thioredoxin reductase inhibitor, sensitizes human breast cancer cells to TRAIL-induced apoptosis through DR5 induction and NF-κB suppression. Carcinogenesis 2010; 32:154-67. [PMID: 21081474 DOI: 10.1093/carcin/bgq234] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) exhibits potent antitumor activity via membrane receptors on cancer cells without deleterious side effects for normal tissue. Unfortunately, breast cancer cells, as many other cancer types, develop resistance to TRAIL; therefore, TRAIL sensitizing agents are currently being explored. 2-Tellurium-bridged β-cyclodextrin (2-TeCD) is a synthetic organotellurium compound, with both glutathione peroxidase-like catalytic ability and thioredoxin reductase inhibitor activity. In the present study, we reported that 2-TeCD sensitized TRAIL-resistant human breast cancer cells and xenograft tumors to undergo apoptosis. In vitro, 2-TeCD efficiently sensitized MDA-MB-468 and T47D cells, but not untransformed human mammary epithelial cells, to TRAIL-mediated apoptosis, as evidenced by enhanced caspase activity and poly (adenosine diphosphate-ribose) polymerase cleavage. From a mechanistic standpoint, we showed that 2-TeCD treatment of breast cancer cells significantly upregulated the messenger RNA and protein levels of TRAIL receptor, death receptor (DR) 5, in a transcription factor Sp1-dependent manner. 2-TeCD treatment also suppressed TRAIL-induced nuclear factor-κB (NF-κB) prosurvival pathways by preventing cytosolic IκBα degradation, as well as p65 nuclear translocation. Consequently, the combined administration suppressed anti-apoptotic molecules that are transcriptionally regulated by NF-κB. In vivo, 2-TeCD and TRAIL were well tolerated in mice and their combination significantly inhibited growth of MDA-MB-468 xenografts and promoted apoptosis. Upregulation of DR5 and downregulation of NF-κB by the dual treatment were also observed in tumor tissues. Overall, 2-TeCD sensitizes resistant breast cancer cells to TRAIL-based apoptosis in vitro and in vivo. These findings provide strong evidence for the therapeutic potential of this combination against breast cancers.
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Affiliation(s)
- Tingting Lin
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, People's Republic of China
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26
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Yu S, Huang X, Miao L, Zhu J, Yin Y, Luo Q, Xu J, Shen J, Liu J. A supramolecular bifunctional artificial enzyme with superoxide dismutase and glutathione peroxidase activities. Bioorg Chem 2010; 38:159-64. [DOI: 10.1016/j.bioorg.2010.03.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 03/04/2010] [Accepted: 03/04/2010] [Indexed: 01/06/2023]
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Wang K, Gong P, Liu L, Gong S, Liu J, Shen J, Luo G. Effect of 2-TeCD on the expression of adhesion molecules in human umbilical vein endothelial cells under the stimulation of tumor necrosis factor-α. Int Immunopharmacol 2009; 9:1087-91. [DOI: 10.1016/j.intimp.2009.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Revised: 04/21/2009] [Accepted: 05/06/2009] [Indexed: 10/20/2022]
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28
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Liu X, Silks LA, Liu C, Ollivault-Shiflett M, Huang X, Li J, Luo G, Hou YM, Liu J, Shen J. Incorporation of tellurocysteine into glutathione transferase generates high glutathione peroxidase efficiency. Angew Chem Int Ed Engl 2009; 48:2020-3. [PMID: 19199319 DOI: 10.1002/anie.200805365] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A rival to native peroxidase! An existing binding site for glutathione was combined with the catalytic residue tellurocysteine by using an auxotrophic expression system to create an engineered enzyme that functions as a glutathione peroxidase from the scaffold of a glutathione transferase (see picture). The catalytic activity of the telluroenzyme in the reduction of hydroperoxides by glutathione is comparable to that of native glutathione peroxidase.
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Affiliation(s)
- Xiaoman Liu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, 2699 Qianjin Road, Changchun 130012, China
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Liu X, Silks L, Liu C, Ollivault-Shiflett M, Huang X, Li J, Luo G, Hou YM, Liu J, Shen J. Incorporation of Tellurocysteine into Glutathione Transferase Generates High Glutathione Peroxidase Efficiency. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805365] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Association mechanism of S-dinitrophenyl glutathione with two glutathione peroxidase mimics: 2, 2 cent-ditelluro- and 2, 2 cent-diseleno-bridged b-cyclodextrins. Molecules 2009; 14:904-16. [PMID: 19255549 PMCID: PMC6253948 DOI: 10.3390/molecules14030904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2008] [Revised: 12/17/2008] [Accepted: 12/23/2008] [Indexed: 11/23/2022] Open
Abstract
Complex formation of the glutathione peroxidase mimics 2,2′-ditelluro-bridged β-cyclodextrin (1) and 2,2′-diseleno-bridged β-cyclodextrin (2), with S-substituted dinitrophenyl glutathione (3) were determined by ultraviolet-visible (UV-Vis) absorption spectroscopy in phosphate buffer (pH 7.4) and 1H-NMR spectroscopy. Molecular mechanics (MM2) modeling calculations were used to deduce a three-dimensional model for each complex. The dinitrophenyl (DNP) group of 3 appears to penetrate the cavity of β-cyclodextrin (β-CD) or 1, but it is located between the two secondary rims of 2. The complexes’ stability constants (Ks) from 19 to 37 °C, Gibbs free energy changes (ΔG°), ΔH° and TΔS° for 1:1 complexes of β-CD, 1 and 2 with ligand 3 as obtained from UV-Vis spectra were compared. The binding of 3 by the three cyclodextrin hosts generally decreased in the order of 1>2>β-CD. The binding ability of 3 by β-CD, 1 and 2 was discussed with regard to the size/shape-fit concept, the induced-fit interaction, and the cooperative interaction of the dual hydrophobic cavities. The binding ability of 1>2 indicated that the length of linkage between two cyclodextrin units plays a crucial role in the interaction with 3.
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31
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Fenger TH, Marinescu LG, Bols M. Cyclodextrin ketones as oxidation catalysts: Investigation of bridged derivatives. Org Biomol Chem 2009; 7:933-43. [DOI: 10.1039/b814245a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Chen Z, Lv J, Chen F, Lin L. Studies on telluric hyaluronic acid (TeHA): A novel antioxidant. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.molcatb.2008.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Li J, Liu X, Ji Y, Qi Z, Ge Y, Xu J, Liu J, Luo G, Shen J. Biosynthesis of selenosubtilisin: A novel way to target selenium into the active site of subtilisin. Sci Bull (Beijing) 2008. [DOI: 10.1007/s11434-008-0349-7] [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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34
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Dong ZY, Huang X, Mao SZ, Liang K, Liu JQ, Luo GM, Shen JC. Cyclodextrin-derived mimic of glutathione peroxidase exhibiting enzymatic specificity and high catalytic efficiency. Chemistry 2007; 12:3575-9. [PMID: 16491491 DOI: 10.1002/chem.200501098] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
To elucidate the relationships between molecular recognition and catalytic ability, we chose three assay systems using three different thiol substrates, glutathione (GSH), 3-carboxyl-4-nitrobenzenethiol (CNBSH), and 4-nitrobenzenethiol (NBSH), to investigate the glutathione peroxidase (GPx) activities of 2,2'-ditellurobis(2-deoxy-beta-cyclodextrin) (2-TeCD) in the presence of a variety of structurally distinct hydroperoxides (ROOH), H2O2, tert-butyl peroxide (tBuOOH), and cumene peroxide (CuOOH), as the oxidative reagent. A comparative study of the three assay systems revealed that the cyclodextrin moiety of the GPx mimic 2-TeCD endows the molecule with selectivity for ROOH and thiol substrates, and hydrophobic interactions are the most important driving forces in 2-TeCD complexation. Furthermore, in the novel NBSH assay system, 2-TeCD can catalyze the reduction of ROOH about 3.4 x 10(5) times more efficiently than diphenyl diselenide (PhSeSePh), and its second-order rate constants for thiol are similar to some of those of native GPx. This comparative study confirms that efficient binding of the substrate is essential for the catalytic ability of the GPx mimic, and that NBSH is the preferred thiol substrate of 2-TeCD among the chosen thiol substrates. Importantly, the proposed mode of action of 2-TeCD imitates the role played by several possible noncovalent interactions between enzymes and substrates in influencing catalysis and binding.
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Affiliation(s)
- Ze-Yuan Dong
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, China
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35
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Bjerre J, Hauch Fenger T, Marinescu LG, Bols M. Synthesis of Some Trifluoromethylated Cyclodextrin Derivatives and Analysis of Their Properties as Artificial Glycosidases and Oxidases. European J Org Chem 2007. [DOI: 10.1002/ejoc.200600762] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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A Glutathione Peroxidase Mimic 6,6′-Ditellurobis (6-Deoxy-β-Cyclodextrin) with High Substrate Specificity. J INCL PHENOM MACRO 2006. [DOI: 10.1007/s10847-006-9080-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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1H NMR Study on the Inclusion Complex of Glutathione with a Glutathione Peroxidase Mimic, 2,2′-ditelluro-bridged β-cyclodextrins. J INCL PHENOM MACRO 2006. [DOI: 10.1007/s10847-005-6289-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Rousseau C, Christensen B, Bols M. Artificial Epoxidase II. Synthesis of Cyclodextrin Ketoesters and Epoxidation of Alkenes. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500034] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Corrêa DHA, Melo PS, de Carvalho CAA, de Azevedo MBM, Durán N, Haun M. Dehydrocrotonin and its β-cyclodextrin complex: Cytotoxicity in V79 fibroblasts and rat cultured hepatocytes. Eur J Pharmacol 2005; 510:17-24. [PMID: 15740720 DOI: 10.1016/j.ejphar.2005.01.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2004] [Revised: 01/10/2005] [Accepted: 01/13/2005] [Indexed: 11/30/2022]
Abstract
Trans-dehydrocrotonin has antiulcerogenic and antitumor activities. A complex of beta-cyclodextrin with dehydrocrotonin was developed to improve the delivery of dehydrocrotonin. Complex in solid state was evaluated using X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM). X-ray diffraction and scanning electron microscopy studies showed that dehydrocrotonin exists in a semicrystalline state in the complexed form with beta-cyclodextrin. Differential scanning calorimetry studies showed the existence of a complex of dehydrocrotonin with beta-cyclodextrin. The thermal gravimetric analysis studies confirmed the differential scanning calorimetry results of the complex. Free dehydrocrotonin and the dehydrocrotonin/beta-cyclodextrin inclusion complex were assayed in freshly isolated rat hepatocytes and in V79 cells. Cytotoxicity was determined using nucleic acid content, methylthiazoletetrazolium (MTT) reduction and neutral red uptake assays. In all assays, there was a large reduction (3.5-16.1-fold) in the cytotoxicity of dehydrocrotonin in hepatocytes when complexed with beta-cyclodextrin, whereas for V79 cells the decrease in cytotoxicity was 1.7- and 1.87-fold for MTT reduction and nucleic acid content assays, respectively. The lower cytotoxicity of the dehydrocrotonin/beta-cyclodextrin complex compared to free dehydrocrotonin in rat hepatocytes and V79 cells suggests that such a complex may be useful for the administration of dehydrocrotonin in vivo.
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Affiliation(s)
- Daniel H A Corrêa
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, Campinas, SP 13083-970, Brazil.
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Dong Z, Liu J, Mao S, Huang X, Yang B, Ren X, Luo G, Shen J. Aryl Thiol Substrate 3-Carboxy-4-Nitrobenzenethiol Strongly Stimulating Thiol Peroxidase Activity of Glutathione Peroxidase Mimic 2, 2'-Ditellurobis(2-Deoxy-β-Cyclodextrin). J Am Chem Soc 2004; 126:16395-404. [PMID: 15600341 DOI: 10.1021/ja045964v] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Artificial glutathione peroxidase (GPx) model 2, 2'-ditellurobis(2-deoxy-beta-cyclodextrin) (2-TeCD) which has the desirable properties exhibited high substrate specificity and remarkably catalytic efficiency when 3-carboxy-4-nitrobenzenethiol (ArSH) was used as a preferential thiol substrate. The complexation of ArSH with beta-cyclodextrin was investigated through UV spectral titrations, fluorescence spectroscopy, 1H NMR and molecular simulation, and these results indicated that ArSH fits well to the size of the cavity of beta-cyclodextrin. Furthermore, 2-TeCD was found to catalyze the reduction of cumene peroxide (CuOOH) by ArSH 200,000-fold more efficiently than diphenyl diselenide (PhSeSePh). Its steady-state kinetics was studied and the second rate constant kmax/KArSH was found to be 1.05 x 10(7) M(-1) min(-1) and similar to that of natural GPx. Moreover, the kinetic data revealed that the catalytic efficiency of 2-TeCD depended strongly upon the competitive recognition of both substrates for 2-TeCD. The catalytic mechanism of 2-TeCD catalysis agreed well with a ping-pong mechanism, in analogy with natural GPx, and might exert its thiol peroxidase activity via tellurol, tellurenic acid, and tellurosulfide.
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Affiliation(s)
- Zeyuan Dong
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130012, Peoples Republic of China
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41
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Nogueira CW, Zeni G, Rocha JBT. Organoselenium and Organotellurium Compounds: Toxicology and Pharmacology. Chem Rev 2004; 104:6255-85. [PMID: 15584701 DOI: 10.1021/cr0406559] [Citation(s) in RCA: 1429] [Impact Index Per Article: 71.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Cristina W Nogueira
- Laboratório de Síntese, Reatividade e Avaliacão Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, CEP 97105-900 Rio Grande do Sul, Brazil
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Liu Y, Chen GS, Chen Y, Cao DX, Ge ZQ, Yuan YJ. Inclusion complexes of paclitaxel and oligo(ethylenediamino) bridged bis(β-cyclodextrin)s: solubilization and antitumor activity. Bioorg Med Chem 2004; 12:5767-75. [PMID: 15498653 DOI: 10.1016/j.bmc.2004.08.040] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2004] [Revised: 08/26/2004] [Accepted: 08/27/2004] [Indexed: 10/26/2022]
Abstract
The inclusion complexation behavior of paclitaxel with a series of oligo(ethylenediamino) bridged bis(beta-cyclodextrin)s possessing bridge chains in different length (1-4) has been investigated in order to improve the water solubility of paclitaxel. It is found that only the long-tethered bis(beta-cyclodextrin)s 1 and 2 can form the inclusion complexes with paclitaxel, which are characterized by NMR, SEM, XRD, FT-IR, TG-DTA, DSC, and microcalorimetry technology. The results obtained show that bis(beta-cyclodextrin)s 1 and 2 are able to solubilize paclitaxel to high levels up to 2 and 0.9 mg/mL, respectively. The high complex stability of bis(beta-cyclodextrin) 1 and paclitaxel is discussed from thermodynamic viewpoint. Furthermore, the cytotoxicity of these complexes assessed using a human erythroleukemia K562 cell line indicates that the IC(50) value of 1/paclitaxel complex is 6.0 x 10(-10) mol/dm(3) (calculated as paclitaxel molar concentration), which means that the antitumor activity of 1/paclitaxel complex is better than that of parent paclitaxel (IC(50) value 9.8 x 10(-10) mol/dm(3)). This high antitumor activity, along with the satisfactory water solubility and high thermal stability of the 1/paclitaxel complex, will be potentially useful for its clinical application as a highly effective antitumor drug.
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Affiliation(s)
- Yu Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China.
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43
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Zhang X, Xu H, Dong Z, Wang Y, Liu J, Shen J. Highly Efficient Dendrimer-Based Mimic of Glutathione Peroxidase. J Am Chem Soc 2004; 126:10556-7. [PMID: 15327310 DOI: 10.1021/ja048890w] [Citation(s) in RCA: 160] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this communication, we report the synthesis of the three generations of Fréchet-type poly(aryl ether) dendrimers with a diselenide core that demonstrate generation-dependent glutathione peroxidase (GPx) activity with initial reduction rates as high as 2431.20 muM min-1 for the third-generation product, around 1400 times faster than Ebselen. It represents a successful example of using a dendrimer as a model for a GPx mimic.
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Affiliation(s)
- Xi Zhang
- Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
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Liu Y, Yang YW, Song Y, Zhang HY, Ding F, Wada T, Inoue Y. Residue- and Sequence-Selective Binding of Nonaromatic Dipeptides by Bis(β-cyclodextrin) with a Functional Tether. Chembiochem 2004; 5:868-71. [PMID: 15174172 DOI: 10.1002/cbic.200300770] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yu Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P R China.
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45
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Detty MR, Logan ME. One- and two-electron oxidations and reductions of organoselenium and organotellurium compounds. ADVANCES IN PHYSICAL ORGANIC CHEMISTRY 2004. [DOI: 10.1016/s0065-3160(04)39003-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Musaev DG, Hirao K. Reactivity of [1,2-Benzisotellurazol-3(2H)-one] with Peroxynitrous Acid: Comparison with Ebselen Analogues. J Phys Chem A 2003. [DOI: 10.1021/jp035969z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Djamaladdin G. Musaev
- Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322
| | - Kimihiko Hirao
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
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Sakimoto Y, Hirao K, Musaev DG. Reactivity of Ebtellur Derivatives with the Peroxynitrite Anion: Comparison with Their Ebselen Analogues. J Phys Chem A 2003. [DOI: 10.1021/jp035191h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yukiko Sakimoto
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Kimihiko Hirao
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Djamaladdin G. Musaev
- Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322
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Sun Y, Mu Y, Li W, Lv S, Jiang Z, Zhang K, Zheng K, Lin F, Yan G, Luo G, Liu J, Shen J. Protection of epidermal cells against UVB injury by the antioxidant selenium-containing single-chain Fv catalytic antibody. Arch Biochem Biophys 2003; 412:90-4. [PMID: 12646271 DOI: 10.1016/s0003-9861(03)00006-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The antioxidant effect of selenium-containing single-chain Fv catalytic antibody (Se-scFv2F3), a new mimic of glutathione peroxidase, was confirmed using a model system in which cultured rat skin epidermal cells were injured by ultraviolet B (UVB). The cell damage was characterized in terms of lipid peroxidation of the cells, cell viability, and cell membrane integrity. The injury effects of UVB and protection effects of Se-scFv2F3 on the cells were studied using the model system. UVB can damage the cells severely. Upon precultivation of the cells with 0.4U/ml Se-scFv2F3, however, the damage was significantly reduced as shown by the increase in cell viability, the decrease in the malondialdehyde and hydrogen peroxide levels, and the normalization of lactate dehydrogenase activity. In addition, a novel finding that Se-scFv2F3 can stimulate cultured epidermal cells to proliferate under certain conditions was observed.
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Affiliation(s)
- Ye Sun
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, 125 Jiefang Road, Changchun 130023, People's Republic of China
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Durán N, Justo GZ, Melo PS, De Azevedo MBM, Brito ARMS, Almeida ABA, Haun M. Evaluation of the antiulcerogenic activity of violacein and its modulation by the inclusion complexation with beta-cyclodextrin. Can J Physiol Pharmacol 2003; 81:387-96. [PMID: 12769230 DOI: 10.1139/y03-033] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The effects of beta-cyclodextrin (betaCD) inclusion complexation on the ability of violacein to prevent gastric ulceration in mice were studied. Violacein-betaCD inclusion complexes were prepared in 1:1 and 1:2 molar ratios and analysed by differential scanning calorimetry and powder X-ray diffractometry. Violacein previously administered orally at 10 mg/kg significantly reduced indomethacin-induced gastric lesions, as well as 100 mg/kg of cimetidine (positive control). However, betaCD complexation in both molar ratios significantly potentiated the protective action of violacein. In the HCl--ethanol-induced gastric ulcer model, violacein and the 1:2 inclusion complex (10 mg/kg, p.o.) inhibited gastric damage by almost 85%, whereas a 63% reduction was observed for the positive control, lansoprazole, at 30 mg/kg. In contrast, treatment with the 1:1 inclusion complex resulted in almost total disappearance of the antiulcer activity in this model. No significant changes in stress-induced gastric injury were found. In addition, the 1:2 inclusion complex improved the antilipoperoxidant activity of violacein in rat liver cells exposed to t-butyl hydroperoxide, whereas the 1:1 complex was less active than violacein. In summary, the 1:2 betaCD inclusion complex has gastroprotective properties similar to or higher than that of violacein. An increase in mucosal defensive mechanisms and protection against peroxidative damage might be involved.
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Affiliation(s)
- Nelson Durán
- Biological Chemistry Laboratory, Instituto de Química, Universidade Estadual de Campinas (UNICAMP), C.P. 6184, CEP 13083-970, Campinas, SP, Brazil
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