1
|
Synthesis, Theoretical Calculation, and Biological Studies of Mono- and Diphenyltin(IV) Complexes of N-Methyl- N-hydroxyethyldithiocarbamate. Molecules 2022; 27:molecules27092947. [PMID: 35566299 PMCID: PMC9105561 DOI: 10.3390/molecules27092947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 12/10/2022] Open
Abstract
In this study, chlorophenyltin(IV) [(C6H5)(Cl)Sn(L)2] and diphenyltin(IV) [(C6H5)2Sn(L)2] of N-methyl-N-hydroxyethyldithiocarbamate were prepared and characterized using various spectroscopic methods (FTIR, 1H, 13C, and 119Sn NMR) and elemental analysis. The FTIR and NMR spectral data, used to establish the structure of the compounds, showed the formation of the complexes via coordination to the two sulfur atoms from the dithiocarbamate ligand and the respective phenyltin(IV) derivatives. This coordination mode was further explored by DFT calculations, which showed that the bonding around the Sn center in [(C6H5)2Sn(L)2] was more asymmetric compared to the bonding around [(C6H5)(Cl)Sn(L)2]. However, the Sn–S bonds in [(C6H5)(Cl)Sn(L)2] were found to be more covalent than those in [(C6H5)2Sn(L)2]. Furthermore, the charge density of the frontier orbitals showed that the Sn atom in the complexes is relatively electrophilic and the Sn atom in [(C6H5)2Sn(L)2] has a lower atomic dipole moment than that of [(C6H5)(Cl)Sn(L)2]. The cytotoxicity and anti-inflammatory study revealed that [(C6H5)2Sn(L)2], with the higher number of phenyl substituents, has a higher potency than [(C6H5)(Cl)Sn(L)2]. The bio-efficacy study of these complexes as cytotoxic and anti-inflammatory agents showed that the complexes possessed moderate to high activity in comparison to the camptothecin and diclofenac in each case. Nevertheless, the diphenyltin(IV) derivative [(C6H5)2Sn(L)2] was found to possess a better activity than its counterpart due to the number of phenyl rings attached to the Sn center.
Collapse
|
2
|
Will JM, Erbacher C, Sperling M, Karst U. A mass spectrometry-based approach gives new insight into organotin-protein interactions. Metallomics 2020; 12:1702-1712. [PMID: 32930317 DOI: 10.1039/d0mt00171f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In this study, the combination of speciation analysis and native mass spectrometry is presented as a powerful tool to gain new insight into the diverse interactions of environmentally relevant organotin compounds (OTCs) with proteins. Analytical standards of model proteins, such as β-lactoglobulin A (LGA), were thereby incubated with different phenyl- and butyltins. For adduct identification and characterization, the incubated samples were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) and electrospray ionization-mass spectrometry (ESI-MS) in combination with size exclusion chromatography (SEC). It allowed for a mild separation, which was most crucial to preserve the acid-labile organotin-protein adducts during their analyses. The binding of triorganotin compounds, such as triphenyltin, was shown to be sulfhydryl-directed by using cysteine-specific protein labeling. However, the sole availability of reduced cysteine residues in proteins did not automatically enable adduct formation. This observation complements previous studies and indicates the necessity of a highly specific binding pocket, which was identified for the model protein LGA via enzymatic digestion experiments. In contrast to triorganotins, their natural di- and mono-substituted degradation products, such as dibutyltin, revealed to be less specific regarding their binding to several proteins. Further, it also did not depend on reduced cysteine residues within the protein. In this context, they can probably act as linker molecules, interconnecting proteins, and leading to dimers and probably to higher oligomers. Furthermore, dibutyltin was observed to induce hydrolysis of the protein's peptide backbone at a specific site. Concerning unknown long-term toxic effects, our studies emphasize the importance of future studies on di- and mono-substituted OTCs.
Collapse
Affiliation(s)
- Jonas M Will
- Institute of Inorganic and Analytical Chemistry, University of Muenster, Corrensstr. 28/30, 48149 Muenster, Germany.
| | | | | | | |
Collapse
|
3
|
Cocco AR, Cuevas-Suárez CE, Liu Y, Lund RG, Piva E, Hwang G. Anti-biofilm activity of a novel pit and fissure self-adhesive sealant modified with metallic monomers. BIOFOULING 2020; 36:245-255. [PMID: 32326753 PMCID: PMC7270982 DOI: 10.1080/08927014.2020.1748603] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/09/2020] [Accepted: 03/23/2020] [Indexed: 05/25/2023]
Abstract
Dental plaque is a biofilm composed of a complex oral microbial community. The accumulation of plaque in the pit and fissures of dental elements often leads to the development of tooth decay (dental caries). Here, potent anti-biofilm materials were developed by incorporating zinc methacrylates or di-n-butyl-dimethacrylate-tin into the light-curable sealant and their physical, mechanical, and biological properties were evaluated. The data revealed that 5% di-n-butyl-dimethacrylate-tin (SnM 5%) incorporated sealant showed strong anti-biofilm efficacy against various single-species (Streptococcus mutans or Streptococcus oralis or Candida albicans) and S. mutans-C. albicans cross-kingdom dual-species biofilms without either impairing the mechanical properties of the sealant or causing cytotoxicities against mouse fibroblasts. The findings indicate that the incorporation of SnM 5% in the experimental pit and fissure self-adhesive sealant may have the potential to be part of current chemotherapeutic strategies to prevent the formation of cariogenic oral biofilms that cause dental caries.
Collapse
Affiliation(s)
- Alexandra Rubin Cocco
- School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
- Biofilm Research Labs, Levy Center for Oral Health, Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Yuan Liu
- Biofilm Research Labs, Levy Center for Oral Health, Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Evandro Piva
- School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Geelsu Hwang
- Biofilm Research Labs, Levy Center for Oral Health, Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
4
|
Adeyemi JO, Onwudiwe DC. Organotin(IV) Dithiocarbamate Complexes: Chemistry and Biological Activity. Molecules 2018; 23:E2571. [PMID: 30304779 PMCID: PMC6222534 DOI: 10.3390/molecules23102571] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/04/2018] [Accepted: 10/04/2018] [Indexed: 11/16/2022] Open
Abstract
Significant attention has been given to organotin(IV) dithiocabamate compounds in recent times. This is due to their ability to stabilize specific stereochemistry in their complexes, and their diverse application in agriculture, biology, catalysis and as single source precursors for tin sulfide nanoparticles. These complexes have good coordination chemistry, stability and diverse molecular structures which, thus, prompt their wide range of biological activities. Their unique stereo-electronic properties underline their relevance in the area of medicinal chemistry. Organotin(IV) dithiocabamate compounds owe their functionalities and usefulness to the individual properties of the organotin(IV) and the dithiocarbamate moieties present within the molecule. These individual properties create a synergy of action in the hybrid complex, prompting an enhanced biological activity. In this review, we discuss the chemistry of organotin(IV) dithiocarbamate complexes that accounts for their relevance in biology and medicine.
Collapse
Affiliation(s)
- Jerry O Adeyemi
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa.
- Department of Chemistry, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa.
| | - Damian C Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa.
- Department of Chemistry, Faculty of Natural and Agricultural Science, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa.
| |
Collapse
|
5
|
A potential “green” organotin: Bis-(methylthiopropyl)tin dichloride, [MeS (CH2)3]2SnCl2. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.05.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
6
|
Kumari R, Nath M. Speciation and Multinuclear NMR Spectroscopic Studies of Di- and Trimethyltin(IV) Moieties with MESNA in Aqueous Medium. J SOLUTION CHEM 2017. [DOI: 10.1007/s10953-017-0654-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
7
|
Ali S, Shahzadi S, Imtiaz-ud-Din. Anticarcinogenicity and Toxicity of Organotin(IV) Complexes: A Review. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY, TRANSACTIONS A: SCIENCE 2016. [DOI: 10.1007/s40995-016-0048-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
8
|
Mridula, Nath M. Equilibrium and Multinuclear NMR Spectroscopic Studies of Di- and Trimethyltin(IV) Moieties with Hydroxycarboxylic Acids in Aqueous Medium. J SOLUTION CHEM 2016. [DOI: 10.1007/s10953-016-0448-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
9
|
Nesci S, Ventrella V, Trombetti F, Pirini M, Pagliarani A. The mitochondrial F1FO-ATPase desensitization to oligomycin by tributyltin is due to thiol oxidation. Biochimie 2014; 97:128-37. [DOI: 10.1016/j.biochi.2013.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 10/03/2013] [Indexed: 11/15/2022]
|
10
|
Egorochkin AN, Kuznetsova OV, Khamaletdinova NM, Domratcheva-Lvova LG. Toxicity of organometallic compounds: Correlation analysis via substituent constants. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.03.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
11
|
Niu Y, Han F, Zhang Q, Xie T, Lu L, Li S, Xia H. Off/On Fluorescent Chemosensors for Organotin Halides Based on Binuclear Ruthenium Complexes. Angew Chem Int Ed Engl 2013; 52:5599-603. [DOI: 10.1002/anie.201209549] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 03/28/2013] [Indexed: 01/01/2023]
|
12
|
Niu Y, Han F, Zhang Q, Xie T, Lu L, Li S, Xia H. Off/On Fluorescent Chemosensors for Organotin Halides Based on Binuclear Ruthenium Complexes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
13
|
Synthesis, spectroscopic characterization, structural studies and antibacterial and antitumor activities of diorganotin complexes with 3-methoxysalicylaldehyde thiosemicarbazone. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.12.061] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
14
|
Pagliarani A, Nesci S, Ventrella V. Toxicity of organotin compounds: Shared and unshared biochemical targets and mechanisms in animal cells. Toxicol In Vitro 2013; 27:978-90. [DOI: 10.1016/j.tiv.2012.12.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 11/08/2012] [Accepted: 12/03/2012] [Indexed: 01/10/2023]
|
15
|
Nesci S, Ventrella V, Pagliarani A. Modulation of the F1FO-ATPase function by butyltin compounds. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.2948] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Salvatore Nesci
- Department of Veterinary Medical Sciences; University of Bologna; Italy
| | | | | |
Collapse
|
16
|
|
17
|
Shaheen F, Zia-ur-Rehman, Ali S, Meetsma A. Structural properties and antibacterial potency of new supramolecular organotin(IV) dithiocarboxylates. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.10.025] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Balas VI, Banti CN, Kourkoumelis N, Hadjikakou SK, Geromichalos GD, Sahpazidou D, Male L, Hursthouse MB, Bednarz B, Kubicki M, Charalabopoulos K, Hadjiliadis N. Structural and In Vitro Biological Studies of Organotin(IV) Precursors; Selective Inhibitory Activity Against Human Breast Cancer Cells, Positive to Estrogen Receptors. Aust J Chem 2012. [DOI: 10.1071/ch12448] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Crystals of Ph3SnCl (1) were grown from a methanol/acetonitrile solution. Compounds [Ph3SnOH]n (2) and [(Ph2Sn)4Cl2O2(OH)2] (3) were crystallized from diethyl ether/methanol/acetonitrile and hot acetone/water solutions respectively, of the white precipitation, formed by adding KOH to solutions of 1 and [Ph2SnCl2] in 1 : 1 and 1 : 2 molar ratios respectively. Complex 1 was characterized by X-ray crystallography. X-ray structure determination of compounds 2 and 3 confirmed the previously reported identities. The molecular structure of 1, reported here, is a new polymorphic form of the known one for Ph3SnCl. Four independent [Ph3SnCl] molecules constitute the crystal structure of 1. The moieties are packed in two pairs in a tail-to-tail arrangement.
Complexes 1–3 were evaluated for their in vitro cytotoxic activity (cell viability) against human cancer cell lines: HeLa (human cervical), MCF-7 (breast, estrogen receptor (ER) positive), MDA-MB-231 (breast, ER negative), A549 (lung), Caki-1 (kidney carcinoma), 786-O (renal adenocarcinoma), K1 (thyroid carcinoma), and the normal human lung cell line MRC-5 (normal human fetal lung fibroblast cells) versus, the normal immortalized human mammary gland epithelial cell line MTSV17 with a sulforhodamine B (SRB) assay. The results show potent cytotoxic activity of the complexes against all cell lines used, which was superior to that of cisplatin (CDDP). Compounds 1–3 showed higher activity against breast cancer cells MCF-7 (ER positive) than against of MDA-MB-231 (ER negative). These findings prompted us to search for possible interaction of these complexes with other cellular elements of fundamental importance in cell proliferation. The influence of these complexes 1–3 upon the catalytic peroxidation of linoleic acid to hydroperoxylinoleic acid by the enzyme lipoxygenase (LOX), as well as their binding affinity towards calf thymus-DNA, were kinetically and theoretically studied.
Collapse
|
19
|
Zia-ur-Rehman, Muhammad N, Ali S, Butler IS, Meetsma A. New mononuclear organotin(IV) 4-benzhydrylpiperazine-1-carbodithioates: Synthesis, spectroscopic characterization, X-ray structures and in vitro antimicrobial activities. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.04.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
20
|
Nesci S, Ventrella V, Trombetti F, Pirini M, Pagliarani A. Tributyltin (TBT) and mitochondrial respiration in mussel digestive gland. Toxicol In Vitro 2011; 25:951-9. [DOI: 10.1016/j.tiv.2011.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Revised: 03/01/2011] [Accepted: 03/03/2011] [Indexed: 10/18/2022]
|
21
|
López-Torres E, Zani F, Mendiola MA. Antimicrobial activity of organotin(IV) complexes with the ligand benzil bis(benzoylhydrazone) and 4,4'-bipyridyl as coligand. J Inorg Biochem 2011; 105:600-8. [PMID: 21443849 DOI: 10.1016/j.jinorgbio.2011.01.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Revised: 01/19/2011] [Accepted: 01/20/2011] [Indexed: 11/17/2022]
Abstract
Several methyltin(IV) and butyltin(IV) complexes with the ligand benzil bis(benzoylhydrazone) and 4,4'-bipyridyl as coligand were synthesised and characterized by elemental analysis and by IR, (1)H, (13)C and (119)Sn NMR spectroscopies. Some of them were also analyzed using single crystal X-ray diffraction. The title compounds were evaluated for their in vitro antimicrobial properties. All buthyltin complexes showed significant inhibition of Gram positive bacteria, resulting Bacillus subtilis, Sarcina lutea and both methicillin-susceptible and methicillin-resistant Staphylococcus epidermidis the most sensitive strains. Furthermore, they were able to inhibit the growth of Gram negative bacteria, especially Proteus vulgaris, whereas no activity was exhibited against fungi. All methyltin complexes were devoid of antimicrobial properties.
Collapse
Affiliation(s)
- Elena López-Torres
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, Madrid, Spain.
| | | | | |
Collapse
|
22
|
López-Torres E, Medina-Castillo AL, Fernández-Sánchez JF, Mendiola MA. Luminescent organotin complexes with the ligand benzil bis(benzoylhydrazone). J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
23
|
Ramalho TC, Rocha MVJ, da Cunha EFF, Oliveira LCA, Carvalho KTG. Understanding the Molecular Behavior of Organotin Compounds to Design their Effective Use as Agrochemicals: Exploration via Quantum Chemistry and Experiments. J Biomol Struct Dyn 2010; 28:227-38. [DOI: 10.1080/07391102.2010.10507355] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
24
|
New tetrahedral, square-pyramidal, trigonal-bipyramidal and octahedral organotin(IV) 4-ethoxycarbonylpiperazine-1-carbodithioates: Synthesis, structural properties and biological applications. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.03.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
25
|
Hirner AV, Rettenmeier AW. Methylated Metal(loid) Species in Humans. ORGANOMETALLICS IN ENVIRONMENT AND TOXICOLOGY 2010. [DOI: 10.1039/9781849730822-00465] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
While the metal(loid)s arsenic, bismuth, and selenium (probably also tellurium) have been shown to be enzymatically methylated in the human body, this has not yet been demonstrated for antimony, cadmium, germanium, indium, lead, mercury, thallium, and tin, although the latter elements can be biomethylated in the environment. Methylated metal(loid)s exhibit increased mobility, thus leading to a more efficient metal(loid) transport within the body and, in particular, opening chances for passing membrane barriers (blood-brain barrier, placental barrier). As a consequence human health may be affected. In this review, relevant data from the literature are compiled, and are discussed with respect to the evaluation of assumed and proven health effects caused by alkylated metal(loid) species.
Collapse
Affiliation(s)
- Alfred V. Hirner
- Institute of Analytical Chemistry, University of Duisburg-Essen D-45117 Essen Germany
| | - Albert W. Rettenmeier
- Institute of Hygiene and Occupational Medicine, University of Duisburg-Essen D-45122 Essen Germany
| |
Collapse
|
26
|
Synthesis, characterization and biocidal activity of new organotin complexes of 2-(3-oxocyclohex-1-enyl)benzoic acid. Eur J Med Chem 2009; 45:883-9. [PMID: 19959261 DOI: 10.1016/j.ejmech.2009.11.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2009] [Revised: 11/03/2009] [Accepted: 11/12/2009] [Indexed: 11/24/2022]
Abstract
The reaction of 1,3-cyclohexadione with 2-aminobenzoic acid has produced the 2-(3-oxocyclohex-1-enyl)benzoic acid (HOBz). Subsequent reactions of the ligand with organotin chlorides led to [Me(2)Sn(OBz)O](2) (1), [Bu(2)Sn(OBz)O](2) (2), [Ph(2)Sn(OBz)O](2) (3), [Me(3)Sn(OBz)] (4), [Bu(3)Sn(OBz)] (5) and [Ph(3)Sn(OBz)] (6). All complexes have been fully characterized. In addition the structure of complexes (2) and (4) have been authenticated by X-ray crystallography. The biological activity of all derivatives has been screened against Cryptococcus neoformans and Candida albicans. In addition we have performed toxicological testes employing human kidney cell. The complexes (3), (5) and (6) displayed the best values of inhibition of the fungus growing, superior to ketoconazole. Compound (5) presented promising results in view of the antifungal and cytotoxicity assays.
Collapse
|
27
|
Porcelli F, Triggiani D, Buck-Koehntop BA, Masterson LR, Veglia G. Pseudoenzymatic dealkylation of alkyltins by biological dithiols. J Biol Inorg Chem 2009; 14:1219-25. [PMID: 19626349 DOI: 10.1007/s00775-009-0565-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Accepted: 06/30/2009] [Indexed: 11/24/2022]
Abstract
We investigated the time dependence of the degradation of three alkyltin derivatives by a nine amino acid linear peptide (I(1)LGCWCYLR(9)) containing a CXC motif derived from the primary sequence of stannin, a membrane protein involved in alkyltin toxicity. We monitored the reaction kinetics using the intrinsic fluorescence of the tryptophan residue in position 5 of the peptide and found that all of the alkyltins analyzed are progressively degraded to dialkyl derivatives, following a pseudoenzymatic reaction mechanism. The end point of the reactions is the formation of a covalent complex between the disubstituted alkyltin and the peptide cysteines. These data agree with the speciation profiles proposed for polysubstituted alkyltins in the environment and reveal a possible biotic degradation pathway for these toxic compounds.
Collapse
Affiliation(s)
- Fernando Porcelli
- Department of Environmental Science, University of Tuscia, 01100 Viterbo, Italy
| | | | | | | | | |
Collapse
|
28
|
Li SH, Chen FR, Zhou YF, Wang JN, Zhang H, Xu JG. Enhanced fluorescence sensing of hydroxylated organotins by a boronic acid-linked Schiff base. Chem Commun (Camb) 2009:4179-81. [DOI: 10.1039/b906467b] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Vieira FT, Menezes DC, de Lima GM, Wardell JL, Cortés ME, Silva GAB, Vilas‐Boas A, da S. Maia JR. Effect of diorganotin(IV) carboxylate complexes, [N‐(2‐carboxyphenyl) salicylideneiminato]dimethyltin(IV), bis(µ3‐oxo)bis(µ‐O‐aminobenzoato‐O,O′) bis(O‐aminobenzoato)tetrakis[dimethyltin(IV)] and bis(O‐aminobenzoato‐O,O′) di‐n‐butyltin(IV), on the membrane ofCandida albicanscells—a mechanistic investigation of the antifungal activity of organotin complexes. Appl Organomet Chem 2008. [DOI: 10.1002/aoc.1419] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
30
|
Synthesis, spectroscopic characterization, and crystal structures of two chlorodiorganotin(IV) 4-(2-methoxyphenyl)piperazine-1-carbodithioates. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2008.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
31
|
Pagliarani A, Bandiera P, Ventrella V, Trombetti F, Pirini M, Nesci S, Borgatti AR. Tributyltin (TBT) inhibition of oligomycin-sensitive Mg-ATPase activity in mussel mitochondria. Toxicol In Vitro 2008; 22:827-36. [DOI: 10.1016/j.tiv.2007.12.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2007] [Revised: 12/07/2007] [Accepted: 12/21/2007] [Indexed: 11/30/2022]
|
32
|
Menezes DC, Vieira FT, de Lima GM, Wardell JL, Cortés M, Ferreira MP, Soares MA, Vilas Boas A. Thein vitro antifungal activity of some dithiocarbamate organotin(IV) compounds onCandida albicans— a model for biological interaction of organotin complexes. Appl Organomet Chem 2008. [DOI: 10.1002/aoc.1375] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|