1
|
Vujica L, Lončar J, Mišić L, Lučić B, Radman K, Mihaljević I, Bertoša B, Mesarić J, Horvat M, Smital T. Environmental contaminants modulate transport activity of zebrafish (Danio rerio) multidrug and toxin extrusion protein 3 (Mate3/Slc47a2.1). THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165956. [PMID: 37541507 DOI: 10.1016/j.scitotenv.2023.165956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/25/2023] [Accepted: 07/30/2023] [Indexed: 08/06/2023]
Abstract
Zebrafish Mate3 is one of six co-orthologs of human multidrug and toxin extrusion proteins. It is highly expressed in the kidneys, intestine, testes, and brain of males. Initial interaction studies showed its interaction with xenobiotic compounds, suggesting a role in the efflux of toxic compounds. In this study, we aimed to test various environmental contaminants for their interaction with zebrafish Mate3. We developed a stable zebrafish Mate3 cell line and optimized a high-throughput screening assay using DAPI and ASP+ as fluorescent model substrates. To gain insight into the structure and function of the Mate3 protein and relate these to the results of the DAPI and ASP+ transport measurements, we predicted its 3D structure using the AlphaFold2 algorithm. A 3D structure with high per residue confidence scores with 13 transmembrane segments (TMs) was obtained, with topology and mutual positioning characteristic of the Mate protein family in a shape open to the extracellular part. Molecular docking methods were used to identify DAPI and ASP+ binding sites on the surface and in the center of the protein cavity. Because our kinetics experiments combined with molecular docking indicated that there may be additional active sites in zebrafish Mate3, additional cytotoxicity experiments were performed and highly potent Mate3 interactors were identified from a set of 55 different environmental contaminants. Our results suggest that some of the identified interactors may be of environmental concern, as their interaction with Mate3 could lead to an impairment of its normal efflux function, making fish more sensitive to harmful substances commonly released into the aquatic environment. Finally, the quality of zebrafish Mate3 structures predicted by the AlphaFold2 algorithm opens up the possibility of successfully using this tool for in silico research on transport preferences of other Mate proteins.
Collapse
Affiliation(s)
- Lana Vujica
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Jovica Lončar
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Lana Mišić
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Bono Lučić
- NMR Center, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Katarina Radman
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Ivan Mihaljević
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Branimir Bertoša
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Josip Mesarić
- Centre for Informatics and Computing, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Marina Horvat
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Tvrtko Smital
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
| |
Collapse
|
2
|
Bernardo RC, Connaughton VP. Transient developmental exposure to tributyltin reduces optomotor responses in larval zebrafish (Danio rerio). Neurotoxicol Teratol 2022; 89:107055. [PMID: 34896240 PMCID: PMC8755603 DOI: 10.1016/j.ntt.2021.107055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/01/2021] [Accepted: 12/01/2021] [Indexed: 02/06/2023]
Abstract
This study determined the effects of transient developmental exposure to tributyltin (TBT), a well-known anti-estrogenic environmental endocrine disrupting compound, on visual system development of larval zebrafish (Danio rerio). Zebrafish were exposed to either 0.2 μg/L or 20 μg/L TBT for 24 h when they were aged 24 h postfertilization (hpf), 72 hpf, or 7 days (d)pf. Immediately after exposure, larvae were transferred to system water for seven days of recovery followed by behavioral testing (startle and optomotor responses) and morphological assessment. TBT-treated larvae displayed age-dependent changes in morphology characterized by delayed/reduced growth and susceptibility to exposure. TBT exposure reduced the number of larvae displaying optomotor responses regardless of age of exposure; eye diameter was also decreased when exposure occurred at 24 hpf or 7 dpf. Startle responses were reduced only in TBT-treated larvae exposed when they were 24 hpf, suggesting transient TBT exposure during the early larval period may cause vision-specific effects.
Collapse
Affiliation(s)
- Rachel C. Bernardo
- Department of Biology, American University, Washington, DC 20016, USA.,Department of Health Studies, American University, Washington, DC 20016, USA
| | - Victoria P. Connaughton
- Department of Biology, American University, Washington, DC 20016, USA.,Corresponding author: VP Connaughton, Dept of Biology, American University, 4400 Massachusetts Ave, NW, Washington, DC 20016, 202-885-2188,
| |
Collapse
|
3
|
Kanimozhi V, Palanivel K, Akbarsha MA, Kadalmani B. Tributyltin-mediated hepatic, renal and testicular tissue damage in male Syrian hamster (Mesocricetus auratus): a study on impact of oxidative stress. SPRINGERPLUS 2016; 5:1523. [PMID: 27652096 PMCID: PMC5017992 DOI: 10.1186/s40064-016-3186-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/31/2016] [Indexed: 12/11/2022]
Abstract
Organotin compounds are a versatile group of organometallic chemicals that are used in a variety of industrial and agricultural applications. Tributyltin (TBT), a common organotin, brings about severe spermatotoxic and organotoxic effects. However, information about the adverse effects of TBT on liver, kidney and testis is scanty. Hence, the present study was undertaken to elucidate the TBT-mediated oxidative stress-induced impairments in these organs. Administration of TBT through oral route at increasing doses of 50, 100 and 150 ppm for 65 days to male Syrian hamsters resulted in drastically decreased activities of antioxidant enzymes superoxide dismutase, catalase and glutathione peroxidase and decreased mean levels of non-enzymatic antioxidants (reduced glutathione, vitamin C, and vitamin E) followed by a dramatic increase in the levels of lipid peroxidation in the liver, kidney and testis as compared to the control animals. Significantly high levels of serum urea, creatinine, uric acid and bilirubin were observed in TBT-treated hamsters. Also, TBT treatment induced drastic histopathological changes in the liver, kidney and testis combined with remarkable changes in serum levels of tissue injury marker enzymes Aspartate transaminases, Alkaline phosphatase and Alanine transaminase. These data affirm that exposure to TBT can lead to oxidative stress-induced damage to liver, kidney and testis.
Collapse
Affiliation(s)
- V Kanimozhi
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, 620 024 India
| | - K Palanivel
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, 620 024 India
| | - M A Akbarsha
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, 620 024 India ; Department of Food Science and Nutrition, College of Food and Agriculture, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - B Kadalmani
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, 620 024 India
| |
Collapse
|
4
|
Sharma A, Jain A, Saxena S. Diorganotin(IV) complexes of flexible N-protected amino acids and ketoximes: preparation and structure – antimicrobial activity relationship. CAN J CHEM 2016. [DOI: 10.1139/cjc-2015-0126] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Diorganotin(IV) complexes of flexible N-protected amino acids and ketoximes having the compositions Me2Sn [[Formula: see text]CHRCOO][ON = C6H10] (where R = –CH2CH(CH3)2, –CH(CH3)C2H5,–CH2C6H5, –CH(CH3)2) and Me2Sn[[Formula: see text]CHRCOO][ON=CR′R″] (where R = –CH2CH(CH3)2, –CH(CH3)C2H5, –CH2C6H5, R′ = R″ = CH3; R = –CH(CH3)C2H5, –CH2C6H5, –CH(CH3)2, R′ = CH3, R″ = C6H5) were prepared by the reaction of dimethyltin(IV) dichloride with sodium salts of flexible N-protected amino acids and ketoximes in 1:1:1 molar ratio in refluxing dry benzene. The synthesized complexes were characterized by elemental analyses and IR, multinuclear NMR (1H, 13C, and 119Sn), and mass spectral studies. Plausible structures of these complexes have been suggested on the basis of molecular weight measurements and spectral data. 119Sn NMR spectral data indicate the presence of pentacoordinated tin centres in these complexes. Some of the synthesized complexes and their ligands were also screened for their in vitro antimicrobial activity.
Collapse
Affiliation(s)
- Arti Sharma
- Department of Chemistry, University of Rajasthan, Jaipur 302004, India
- Department of Chemistry, University of Rajasthan, Jaipur 302004, India
| | - Asha Jain
- Department of Chemistry, University of Rajasthan, Jaipur 302004, India
- Department of Chemistry, University of Rajasthan, Jaipur 302004, India
| | - Sanjiv Saxena
- Department of Chemistry, University of Rajasthan, Jaipur 302004, India
- Department of Chemistry, University of Rajasthan, Jaipur 302004, India
| |
Collapse
|