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Lucia Ruiz Benitez M, Severo Sabedra Sousa F, Peter Furtado I, Carlos Rodrigues Junior J, Victoria Mascarenhas Borba M, Vieira Segatto N, Tabarelli G, Klein Couto G, Júlia Damé Fonseca Paschoal M, Silveira Pacheco B, E. D. Rodrigues O, Collares T, Kömmling Seixas F. Chiral β‐arylchalcogenium azide induce apoptosis and regulate Oxidative Damage on Human Bladder Cancer Cells. ChemistrySelect 2022. [DOI: 10.1002/slct.202203207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Martha Lucia Ruiz Benitez
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
- School of Basic and Biomedical Sciences Universidad Simón Bolívar Barranquilla Colombia
| | - Fernanda Severo Sabedra Sousa
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Izadora Peter Furtado
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - João Carlos Rodrigues Junior
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Msc. Victoria Mascarenhas Borba
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Natália Vieira Segatto
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Greice Tabarelli
- LabSelen-NanoBio - Chemistry Department Federal University of Santa Maria, Santa Maria Rio Grande do Sul Brazil
| | - Gabriela Klein Couto
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Msc. Júlia Damé Fonseca Paschoal
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Bruna Silveira Pacheco
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Oscar E. D. Rodrigues
- LabSelen-NanoBio - Chemistry Department Federal University of Santa Maria, Santa Maria Rio Grande do Sul Brazil
| | - Tiago Collares
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
| | - Fabiana Kömmling Seixas
- Laboratory of Cancer Biotechnology, Technology Development Center Federal University of Pelotas Pelotas Rio Grande do Sul Brazil
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2
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Chiaverini L, Marzo T, La Mendola D. AS101: An overview on a leading tellurium-based prodrug. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Selenium and tellurium in the development of novel small molecules and nanoparticles as cancer multidrug resistance reversal agents. Drug Resist Updat 2022; 63:100844. [DOI: 10.1016/j.drup.2022.100844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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4
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Ali A Aldawood S, Das A, Banik BK. Tellurium-induced cyclization of olefinic compounds. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this article, we discuss about the importance of Tellurium (Te) in organic synthesis. Tellurium-induced cyclization of alkenyl compounds, as well as alkynyl compounds, are considered for the study. The developments in this area are incorporated in great detail. The mechanism of the reactions does not follow any straightforward process. This study opens up the possibility of stereocontrolled synthesis of complex natural products.
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Affiliation(s)
- Sara Ali A Aldawood
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
| | - Aparna Das
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
| | - Bimal Krishna Banik
- Department of Mathematics and Natural Sciences , College of Sciences and Human Studies, Prince Mohammad Bin Fahd University , Al Khobar 31952 , Kingdom of Saudi Arabia
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5
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Maganhi SH, Caracelli I, Zukerman-Schpector J, Cunha RL, Veja-Teijido MA, Tiekink ER. Crystal structures and docking studies in cathepsin S of bioactive 1,3‐diphenyl‐4‐(trichloro‐λ4‐tellanyl)but‐2‐en‐1‐one derivatives. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Souza JPA, Menezes LRA, Garcia FP, Scariot DB, Bandeira PT, Bespalhok MB, Giese SOK, Hughes DL, Nakamura CV, Barison A, Oliveira ARM, Campos RB, Piovan L. Synthesis, Mechanism Elucidation and Biological Insights of Tellurium(IV)-Containing Heterocycles. Chemistry 2021; 27:14427-14437. [PMID: 34406689 DOI: 10.1002/chem.202102287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Indexed: 11/08/2022]
Abstract
Inspired by the synthetic and biological potential of organotellurium substances, a series of five- and six-membered ring organotelluranes containing a Te-O bond were synthesized and characterized. Theoretical calculations elucidated the mechanism for the oxidation-cyclization processes involved in the formation of the heterocycles, consistent with chlorine transfer to hydroxy telluride, followed by a cyclization step with simultaneous formation of the new Te-O bond and deprotonation of the OH group. Moreover, theoretical calculations also indicated anti-diastereoisomers to be major products for two chirality center-containing compounds. Antileishmanial assays against Leishmania amazonensis promastigotes disclosed 1,2λ4 -oxatellurane LQ50 (IC50 =4.1±1.0; SI=12), 1,2λ4 -oxatellurolane LQ04 (IC50 =7.0±1.3; SI=7) and 1,2λ4 -benzoxatellurole LQ56 (IC50 =5.7±0.3; SI=6) as more powerful and more selective compounds than the reference, being up to four times more active. A stability study supported by 125 Te NMR analyses showed that these heterocycles do not suffer structural modifications in aqueous-organic media or at temperatures up to 65 °C.
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Affiliation(s)
- João Pedro A Souza
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Leociley R A Menezes
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Francielle P Garcia
- Health Sciences Center, Universidade Estadual de Maringá, Maringá, PR, 87.020-900, Brazil
| | - Débora B Scariot
- Health Sciences Center, Universidade Estadual de Maringá, Maringá, PR, 87.020-900, Brazil
| | - Pamela T Bandeira
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Mateus B Bespalhok
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Siddhartha O K Giese
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - David L Hughes
- School of Chemistry, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Celso V Nakamura
- Health Sciences Center, Universidade Estadual de Maringá, Maringá, PR, 87.020-900, Brazil
| | - Andersson Barison
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Alfredo R M Oliveira
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
| | - Renan B Campos
- Academic Department of Chemistry and Biology, Universidade Tecnológica Federal do Paraná, Curitiba, PR, 81.280-340, Brazil
| | - Leandro Piovan
- Department of Chemistry, Universidade Federal do Paraná, Curitiba, PR, 81.931-480, Brazil
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7
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Dias-da-Silva G, L O R Cunha R, D Coutinho-Neto M. Equilibrium between tri- and tetra-coordinate chalcogenuranes is critical for cysteine protease inhibition. J Comput Chem 2021; 42:1225-1235. [PMID: 33871893 DOI: 10.1002/jcc.26535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 02/17/2021] [Accepted: 03/25/2021] [Indexed: 12/16/2022]
Abstract
There have been significant advances in the biological use of hypervalent selenium and tellurium compounds as cysteine protease inhibitors. However, the full understanding of their reaction mechanisms for and cysteine proteases inhibition is still elusive. Kinetic studies suggest an irreversible inhibition mechanism, which was explained by forming a covalent bond between the enzyme sulfhydryl group and the chalcogen atom at its hypervalent state (+4). In this work, we performed a theoretical investigation using density functional theory to propose the active inhibitor form in an aqueous solution. To this end, we investigated chloride ligand exchange reactions by oxygen and sulfur nucleophiles on hypervalent selenium and tellurium compounds. All tetra- and tri-coordinated chalcogen compounds and distinct protonation states of the nucleophiles were considered, totaling 34 unique species, 7 nucleophiles, and 155 free energies reactions. We discovered that chloride is easily replaced by a nonprotonated nucleophile (SH- or OH- ) in R2 SeCl2 . We also found that tri-coordinate species are more stable than their tetra-coordinate counterparts, with selenoxide (R2 SeO) protonation being strongly exergonic in acid pH. The thermodynamic and kinetic results suggest that the protonated selenoxide (R2 SeOH+ ) is the most probable active chemical species in biological media. The computed energetic profiles paint a possible picture for selenuranes activity, with successive exergonic steps leading to a covalent inhibition of thiol-dependent enzymes, like cysteine proteases. A second pathway has also been uncovered, with a direct reaction to chalcogenonium cation (R2 SeCl+ ) as the inhibition step. Tellurium compounds showed similar trends but formed telluroxide in a pH-independent fashion.
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Affiliation(s)
- Gabriela Dias-da-Silva
- ABCSim - Laboratório de simulação e modelagem, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Rodrigo L O R Cunha
- Laboratório de Biologia Química, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Mauricio D Coutinho-Neto
- ABCSim - Laboratório de simulação e modelagem, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
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8
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Crystal structure of ( E)-dichloro(1-chloro-3-methoxyprop-1-en-2-yl)(4-methoxyphenyl)-λ 4-tellane, C 11H 13Cl 3O 2Te. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C11H13Cl3O2Te, monoclinic, P21/c (no. 14), a = 11.0098(8) Å, b = 16.471(1) Å, c = 8.4975(7) Å, β = 99.421(7)°, V = 1520.17(19) Å3, Z = 4, R
gt(F) = 0.0306, wR
ref(F
2) = 0.0852, T = 293(2) K.
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9
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Kut NM, Onysko MY, Lendel VG. Synthesis of Functionalized 2,3-Dihydro-5H-[1,3]thiazolo[2,3-b]quinazolin-5-one via Intramolecular Electrophilic Cyclization. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020070088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Aryltellurium Trihalides in the Synthesis of Heterocyclic Compounds (Microreview). Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02688-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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11
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Garzón-Posse F, Prunet J, Gamba-Sánchez D. An alternative approach to the synthesis of the three fragments of anachelin H. Org Biomol Chem 2020; 18:2702-2715. [PMID: 32207760 DOI: 10.1039/d0ob00315h] [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
The synthesis of the fully protected peptide, polyketide and alkaloid fragments of anachelin H is presented. The peptide fragment was prepared using a liquid phase peptide synthesis; the polyketide fragment was synthetized using a cross metathesis and an intramolecular oxa-Michael reaction as the key steps to introduce the desired stereochemistry; finally, the alkaloid fragment was obtained by an oxidative cyclization of a catechol derivative using potassium ferricyanide. The synthesis of all fragments was based on the use of natural amino acids as sources of asymmetry. The independent synthesis of the three fragments should allow more efficient biological studies on the fragments instead of the whole natural product. Experiments to illustrate the coupling of fragments and the effectiveness of the convergent strategy are also described.
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Affiliation(s)
- Fabián Garzón-Posse
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
| | - Joëlle Prunet
- WestCHEM, School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, UK
| | - Diego Gamba-Sánchez
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
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12
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Sato RH, Kosaka PM, Omori ÁT, Ferreira EA, Petri DFS, Malvar Ó, Domínguez CM, Pini V, Ahumada Ó, Tamayo J, Calleja M, Cunha RLOR, Fiorito PA. Development of a methodology for reversible chemical modification of silicon surfaces with application in nanomechanical biosensors. Biosens Bioelectron 2019; 137:287-293. [PMID: 31125818 DOI: 10.1016/j.bios.2019.04.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/09/2019] [Accepted: 04/14/2019] [Indexed: 10/26/2022]
Abstract
Hypervalent tellurium compounds have a particular reactivity towards thiol compounds which are related to their biological properties. In this work, this property was assembled to tellurium-functionalized surfaces. These compounds were used as linkers in the immobilization process of thiolated biomolecules (such as DNA) on microcantilever surfaces. The telluride derivatives acted as reversible binding agents due to their redox properties, providing the regeneration of microcantilever surfaces and allowing their reuse for further biomolecules immobilizations, recycling the functional surface. Initially, we started from the synthesis of 4-((3-((4-methoxyphenyl) tellanyl) phenyl) amino)-4-oxobutanoic acid, a new compound, which was immobilized on a silicon surface. In nanomechanical systems, the detection involved a hybridization study of thiolated DNA sequences. Fluorescence microscopy technique was used to confirm the immobilization and removal of the telluride-DNA system and provided revealing results about the potentiality of applying redox properties to chalcogen derivatives at surfaces.
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Affiliation(s)
- Roseli H Sato
- CCNH, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, UFABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Priscila M Kosaka
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Álvaro T Omori
- CCNH, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, UFABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Edgard A Ferreira
- Escola de Engenharia, Universidade Presbiteriana Mackenzie, 01302-907, São Paulo, SP, Brazil
| | - Denise F S Petri
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, P.O. Box 26077, São Paulo, SP, 05513-970, Brazil
| | - Óscar Malvar
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Carmen M Domínguez
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Valerio Pini
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Óscar Ahumada
- Mecwins S.A, Plaza de la Encina 10-11, Núcleo 5, 2 B, 28760, Tres Cantos, Madrid, Spain
| | - Javier Tamayo
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Montserrat Calleja
- Instituto Micro y Nanotecnología (IMN-CNM), CSIC, Isaac Newton 8 (PTM), Tres Cantos, Madrid, Spain
| | - Rodrigo L O R Cunha
- CCNH, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, UFABC, Avenida dos Estados, 5001, 09210-580, Santo André, São Paulo, Brazil
| | - Pablo A Fiorito
- Centro de Investigaciones y Transferencia Villa María (CIT VM - CONICET), Instituto de Ciencias Básicas y Aplicadas, Universidad Nacional de Villa María, Av. Arturo Jauretche 1555, Villa María, C.P, 5900, Córdoba, Argentina.
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13
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Paschoalin T, Martens AA, Omori ÁT, Pereira FV, Juliano L, Travassos LR, Machado-Santelli GM, Cunha RLOR. Antitumor effect of chiral organotelluranes elicited in a murine melanoma model. Bioorg Med Chem 2019; 27:2537-2545. [PMID: 30962115 DOI: 10.1016/j.bmc.2019.03.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/15/2019] [Accepted: 03/18/2019] [Indexed: 02/07/2023]
Abstract
Protease roles in cancer progression have been demonstrated and their inhibitors display antitumor effects. Cathepsins are lysosomal cysteine proteases that have increased expression in tumor cells, and tellurium compounds were described as potent cysteine protease inhibitors and also assayed in several animal models. In this work, the two enantiomeric forms of 1-[Butyl(dichloro)-λ4-tellanyl]-2-[1S-methoxyethyl]benzene (organotelluranes RF-13R and RF-13S) were evaluated as inhibitors of cathepsins B and L, showing significant enantiodiscrimination. We observed their cytotoxic effects on a murine melanoma model, effectively inhibiting tumor progression in vivo. The enantiomers were able to inhibit melanoma cell viability, migration and invasion in vitro. Besides, RF-13S and RF-13R were able to inhibit endothelial cell angiogenesis using a tube formation assay in vitro, in a stereodependent manner. These organotelluranes affected cell morphology, showing disassembling of the actin cytoskeleton. These results suggest organotelluranes as potential antitumor agents, acting directly on tumor cell proliferation, migration and invasion, and on endothelial cells, disrupting angiogenesis, showing low toxicity and high efficiency. Taken together our results suggest that this class of compounds should be further studied to reveal their potential as antitumoral agents.
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Affiliation(s)
- Thaysa Paschoalin
- Departamento de Microbiologia, Imunologia e Parasitologia, Unidade de Oncologia Experimental (UNONEX), Universidade Federal de São Paulo, São Paulo, Brazil; Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, Brazil.
| | - Adam A Martens
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Álvaro T Omori
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil
| | - Felipe V Pereira
- Departamento de Microbiologia, Imunologia e Parasitologia, Unidade de Oncologia Experimental (UNONEX), Universidade Federal de São Paulo, São Paulo, Brazil
| | - Luiz Juliano
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Luiz R Travassos
- Departamento de Microbiologia, Imunologia e Parasitologia, Unidade de Oncologia Experimental (UNONEX), Universidade Federal de São Paulo, São Paulo, Brazil
| | - Glaucia M Machado-Santelli
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Rodrigo L O R Cunha
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, Brazil.
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14
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D'Arcy K, Doyle AP, Kavanagh K, Ronconi L, Fresch B, Montagner D. Stability of antibacterial Te(IV) compounds: A combined experimental and computational study. J Inorg Biochem 2019; 198:110719. [PMID: 31174178 DOI: 10.1016/j.jinorgbio.2019.110719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/07/2019] [Accepted: 05/13/2019] [Indexed: 11/28/2022]
Abstract
Inorganic Te(IV) compounds are important cysteine protease inhibitors and antimicrobial agents; AS-101 [ammonium trichloro (dioxoethylene-O,O')tellurate] is the first compound of a family with formula NH4[C2H4Cl3O2Te], where a Te(IV) centre is bound to a chelate ethylene glycol, and showed several protective therapeutic applications. This compound is lacking in stability performance and is subjected to hydrolysis reaction with displacement of the diol ligand. In this paper, we report the stability trend of a series of analogues complexes of AS-101 with generic formula NH4[(RC2H3O2)Cl3Te], where R is an alkyl group with different chain length and different electronic properties, in order to find a correlation between structure and stability in aqueous-physiological conditions. The stability was studied in solution via multinuclear NMR spectroscopy (1H, 13C, 125Te) and computationally at the Density Functional Theory level with an explicit micro solvation model. The combined experimental and theoretical work highlights the essential role of the solvating environment and provides mechanistic insights into the complex decomposition reaction. Antimicrobial activity of the compounds was assessed against different bacterial strains.
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Affiliation(s)
- Kenneth D'Arcy
- Department of Chemistry, Maynooth University, Maynooth, Ireland
| | | | - Kevin Kavanagh
- Department of Biology, Maynooth University, Maynooth, Ireland
| | - Luca Ronconi
- School of Chemistry, National University of Ireland Galway, Galway, Ireland
| | - Barbara Fresch
- Department of Chemical Science, University of Padova, Italy.
| | - Diego Montagner
- Department of Chemistry, Maynooth University, Maynooth, Ireland.
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15
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Chen S, Nie JJ, Wang S, Li QL, Zhang RF, Li YX, Ma CL. Syntheses, characterization, DNA/BSA binding, and in vitro cytostatic activity of fluorobenzenetelluronic triorganotin( iv) esters. NEW J CHEM 2019. [DOI: 10.1039/c9nj00487d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of fluorobenzenetelluronic triorganotin(iv) esters (1–6) have been synthesized by the reaction of deprotonated fluorobenzenetelluronic acid ligands and the corresponding R3SnCl (R = Me, Ph).
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Affiliation(s)
- Shuai Chen
- Institution of Functional Organic Molecules and Materials
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- China
| | | | - Shuo Wang
- Institution of Functional Organic Molecules and Materials
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- China
| | - Qian-Li Li
- Institution of Functional Organic Molecules and Materials
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- China
| | - Ru-Fen Zhang
- Institution of Functional Organic Molecules and Materials
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- China
| | - Yong-Xin Li
- Institution of Functional Organic Molecules and Materials
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- China
| | - Chun-Lin Ma
- Institution of Functional Organic Molecules and Materials
- School of Chemistry and Chemical Engineering
- Liaocheng University
- Liaocheng
- China
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16
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Teixeira ML, Menezes LRA, Barison A, de Oliveira ARM, Piovan L. Investigation of Chemical Stability of Dihalogenated Organotelluranes in Organic-Aqueous Media: The Protagonism of Water. J Org Chem 2018; 83:7341-7346. [PMID: 29373033 DOI: 10.1021/acs.joc.7b02971] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The biological activity of tellurium compounds is closely related to the tellurium oxidation state or some of their structural features. Hypervalent dihalogenated organotelluranes 1-[butyl(dichloro)-λ4-tellanyl]-2-(methoxymethyl)benzene (1a) and 1-[butyl(dibromide)-λ4-tellanyl]-2-(methoxymethyl)benzene (1b) have been described as inhibitors of proteases (cysteine and threonine) and tyrosine phosphatases. However, poor attention has been given to their physicochemical properties. Here, a detailed investigation of the stability in water of these organotelluranes is reported using 125Te NMR analysis. Dihalogenated organotelluranes 1a and 1b were both stable in DMSO- d6 (from 25 to 75 °C), demonstrating their thermal stability. However, the addition of a phosphate buffer solution (pH 2-8) to 1a or 1b resulted in an immediate conversion to a new Te species, assumed to be the corresponding telluroxide. Similar behavior was observed in pure water, demonstrating the low chemical stability of these dihalogenated species in the presence of water. These results allow concluding that previous biological activity reported for dihalogenated organotelluranes 1a and 1b could be attributed to the corresponding derivatives from the reaction with water. In the same way as for AS-101, we demonstrated that organotelluranes 1a and 1b are not stable in aqueous solution. It suggests a proactive role of these organotelluranes in previously reported biological activity.
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Affiliation(s)
- Mariana L Teixeira
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Leociley R A Menezes
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Andersson Barison
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Alfredo R M de Oliveira
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
| | - Leandro Piovan
- Department of Chemistry , Universidade Federal do Paraná , Avenida Coronel Francisco Heráclito dos Santos, 100 - Jardim das Américas , Curitiba , Paraná 81531980 , Brazil
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17
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Reed KB, Alper HS. Expanding beyond canonical metabolism: Interfacing alternative elements, synthetic biology, and metabolic engineering. Synth Syst Biotechnol 2018; 3:20-33. [PMID: 29911196 PMCID: PMC5884228 DOI: 10.1016/j.synbio.2017.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/08/2017] [Accepted: 12/09/2017] [Indexed: 12/15/2022] Open
Abstract
Metabolic engineering offers an exquisite capacity to produce new molecules in a renewable manner. However, most industrial applications have focused on only a small subset of elements from the periodic table, centered around carbon biochemistry. This review aims to illustrate the expanse of chemical elements that can currently (and potentially) be integrated into useful products using cellular systems. Specifically, we describe recent advances in expanding the cellular scope to include the halogens, selenium and the metalloids, and a variety of metal incorporations. These examples range from small molecules, heteroatom-linked uncommon elements, and natural products to biomining and nanotechnology applications. Collectively, this review covers the promise of an expanded range of elemental incorporations and the future impacts it may have on biotechnology.
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Affiliation(s)
- Kevin B. Reed
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200E Dean Keeton St. Stop C0400, Austin, TX 78712, USA
| | - Hal S. Alper
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200E Dean Keeton St. Stop C0400, Austin, TX 78712, USA
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, 2500 Speedway Avenue, Austin, TX 78712, USA
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18
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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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19
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Princival C, Archilha MVLR, Dos Santos AA, Franco M, Braga AAC, Rodrigues-Oliveira AF, Correra TC, Cunha RLOR, Comasseto JV. Stability Study of Hypervalent Tellurium Compounds in Aqueous Solutions. ACS OMEGA 2017; 2:4431-4439. [PMID: 31457735 PMCID: PMC6641895 DOI: 10.1021/acsomega.7b00628] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/19/2017] [Indexed: 06/10/2023]
Abstract
Hypervalent tellurium compounds (telluranes) are promising therapeutical agents with negligible toxicities for some diseases in animal models. The C-Te bond of organotellurium compounds is commonly considered unstable, disfavoring their applicability in biological studies. In this study, the stability of a set of telluranes composed of an inorganic derivative and noncharged and charged organic derivatives was monitored in aqueous media with 1H, 13C, and 125Te NMR spectroscopy and high-resolution mass spectrometry. Organic telluranes were found to be remarkably resistant and stable to hydrolysis, whereas the inorganic tellurane AS101 is totally converted to the hydrolysis product, trichlorooxytellurate, [TeOCl 3 ]-, which was also observed in the hydrolysis of TeCl 4 . The noteworthy stability of organotelluranes in aqueous media makes them prone to further structure-activity relationship studies and to be considered for broad biological investigations.
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Affiliation(s)
| | | | | | - Maurício
P. Franco
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
| | - Ataualpa A. C. Braga
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
| | | | - Thiago C. Correra
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
| | - Rodrigo L. O. R. Cunha
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Santo André, SP 09210-580, Brazil
| | - João V. Comasseto
- Instituto
de Química, Universidade de São
Paulo, São
Paulo, SP 05508-020, Brazil
- Instituto
de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, SP 04021-001, Brazil
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20
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Zukerman-Schpector J, Cunha R, Omori ÁT, Sousa Madureira L, Tiekink ERT. 1-Butyl-1-chloro-3-methyl-3 H-2,1λ 4-benzoxa-tellurole: crystal structure and Hirshfeld analysis. Acta Crystallogr E Crystallogr Commun 2017; 73:564-568. [PMID: 28435722 PMCID: PMC5382623 DOI: 10.1107/s2056989017003887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 03/09/2017] [Indexed: 11/10/2022]
Abstract
Two independent mol-ecules comprise the asymmetric unit in the title benzoxatellurole compound, C12H17ClOTe. The mol-ecules, with the same chirality at the methine C atom, are connected into a loosely associated dimer by Te⋯O inter-actions, leading to a {⋯Te-O}2 core. The resultant C2ClO2 donor set approximates a square pyramid with the lone pair of electrons projected to occupy a position trans to the n-butyl substituent. Inter-estingly, the TeIV atoms exhibit opposite chirality. The major difference between the independent mol-ecules relates to the conformation of the five-membered chelate rings, which is an envelope with the O atom being the flap, in one mol-ecule and is twisted about the O-C(methine) bond in the other. No directional inter-molecular inter-actions are noted in the mol-ecular packing beyond the aforementioned Te⋯O secondary bonding. The analysis of the Hirshfeld surface reveals the dominance of H⋯H contacts, i.e. contributing about 70% to the overall surface, and clearly differentiates the immediate crystalline environments of the two independent mol-ecules in terms of both H⋯H and H⋯Cl/Cl⋯H contacts.
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Affiliation(s)
| | - Rodrigo Cunha
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Av. Dos Estados 5001, Bairro Bangu, CEP 09210-580 Santo André, SP, Brazil
| | - Álvaro T. Omori
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Av. Dos Estados 5001, Bairro Bangu, CEP 09210-580 Santo André, SP, Brazil
| | - Lucas Sousa Madureira
- Departmento de Química, Universidade Federal de São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Edward R. T. Tiekink
- Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
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