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Park JB. Finding a cell-permeable compound to inhibit inflammatory cytokines: Uptake, biotransformation, and anti-cytokine activity of javamide-I/-II esters. Life Sci 2022; 291:120280. [PMID: 34982964 DOI: 10.1016/j.lfs.2021.120280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/17/2021] [Accepted: 12/26/2021] [Indexed: 11/16/2022]
Abstract
AIM Currently, there is limited information available about cell-permeability and anti-cytokine activity of javamide-I/-II esters in monocyte/macrophage-like cells. Therefore, the aim of this study was to investigate their cell-permeability and anti-cytokine activity in the cells. MATERIALS AND METHODS The uptake of javamide-I/-II and esters was studied in THP-1 cells and PBMCs. Also, kinetic and inhibition studies were conducted using THP-1 cells. Western Blot was performed to determine the level of ATF-2 phosphorylation in THP-1 cells, and ELISA assays were carried out to measure TNF-alpha, MCP-1, IL-1beta and IL-8 levels in PBMCs. KEY FINDINGS In THP-1 cells, the uptake of javamide-I/-II esters was significantly higher than javamide-I/-II (P < 0.001), and the Km for javamide-I ester was 27 μM. Also, the uptake of the esters was inhibited by PepT2 substrate/blocker. In THP-1 cells, javamide-I/-II esters were also biotransformed into javamide-I/-II. Furthermore, javamide-I ester could inhibit ATF-2 phosphorylation better than javamide-I in the cells, suggesting that the ester could be transported inside the cells better than javamide-I. Similarly, javamide-I/-II esters were found to be transported and biotransformed in PBMCs involved in inflammation processes. As anticipated, the esters were found to inhibit TNF-alpha and MCP-1 significantly in PBMCs (P < 0.005). Especially, javamide-I ester inhibited TNF-alpha, MCP-1, IL-1beta and IL-8 with IC50 values of 1.79, 0.88, 0.91 and 2.57 μM in PBMCs. SIGNIFICANCE Javamide-I/-II esters can be transported, biotransformed and inhibit inflammatory cytokines significantly in monocyte/macrophage-like cells, suggesting that they may be utilized as a potent cell-permeable carrier to inhibit inflammatory cytokines in the cells. CHEMICAL COMPOUNDS Javamide-I, javamide-I-O-methyl ester, javamide-II, javamide-II-O-methyl ester, tryptophan, coumaric acid, caffeic acid, GlySar, enalapril.
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Affiliation(s)
- Jae B Park
- USDA, ARS, BHNRC, Diet, Genomics, and Immunology Laboratory, Bldg. 307C, Rm. 131, Beltsville, MD 20705, United States of America.
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2
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Becce M, Klöckner A, Higgins SG, Penders J, Hachim D, Bashor CJ, Edwards AM, Stevens MM. Assessing the impact of silicon nanowires on bacterial transformation and viability of Escherichia coli. J Mater Chem B 2021; 9:4906-4914. [PMID: 34100486 PMCID: PMC8221286 DOI: 10.1039/d0tb02762f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/25/2021] [Indexed: 11/21/2022]
Abstract
We investigated the biomaterial interface between the bacteria Escherichia coli DH5α and silicon nanowire patterned surfaces. We optimised the engineering of silicon nanowire coated surfaces using metal-assisted chemical etching. Using a combination of focussed ion beam scanning electron microscopy, and cell viability and transformation assays, we found that with increasing interfacing force, cell viability decreases, as a result of increasing cell rupture. However, despite this aggressive interfacing regime, a proportion of the bacterial cell population remains viable. We found that the silicon nanowires neither resulted in complete loss of cell viability nor partial membrane disruption and corresponding DNA plasmid transformation. Critically, assay choice was observed to be important, as a reduction-based metabolic reagent was found to yield false-positive results on the silicon nanowire substrate. We discuss the implications of these results for the future design and assessment of bacteria-nanostructure interfacing experiments.
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Affiliation(s)
- Michele Becce
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonLondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Anna Klöckner
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonLondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
- MRC Centre for Molecular Bacteriology and Infection, Imperial College LondonLondonUK
| | - Stuart G. Higgins
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonLondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Jelle Penders
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonLondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Daniel Hachim
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonLondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Caleb J. Bashor
- Department of Bioengineering, Rice UniversityHoustonTexasUSA
| | - Andrew M. Edwards
- MRC Centre for Molecular Bacteriology and Infection, Imperial College LondonLondonUK
| | - Molly M. Stevens
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonLondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
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3
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Jeon BK, Jang Y, Lee EM, Jung DW, Moon JH, Lee HJ, Lee DY. A systematic approach to metabolic characterization of thyroid-disrupting chemicals and their in vitro biotransformants based on prediction-assisted metabolomic analysis. J Chromatogr A 2021; 1649:462222. [PMID: 34034111 DOI: 10.1016/j.chroma.2021.462222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 11/20/2022]
Abstract
Thyroid-disrupting compounds (TDCs) are chemicals that modify thyroid gland function and disrupt hormonal homeostasis. Like other endocrine-disrupting chemicals (EDCs), TDCs often show altered activities following post-metabolic modification via endogenous enzymatic reaction. Hence, we developed evaluation system consisting of (1) in vitro metabolic reaction module, (2) high-resolution mass-spectrometry, and (3) human cell-based reporter gene assay. We developed the reaction module using rat S9 fraction where levothyroxine (T4) as a model compound, was subjected to phase-I or phase-I+II biotransformation. The metabolic profiles of the biotransformants were systematically configured based on in-silico prediction of potential products and experimental validation using liquid-chromatography Orbitrap mass-spectrometry. Thyroid agonistic activities of the biotransformants were evaluated by thyroid receptor-mediated stably transfected transcriptional activation assay using hTRE_HeLa cells. Indeed, we detected the increased activities following metabolic conversion of T4 in a dose-dependent manner. Note that the activity by phase-I+II reaction was much greater than by phase-I reaction (3.8-fold increase). Subsequently, we explored metabolic signatures, which potentially contributed to the hyperactivity by phase-I+II reaction. A total of 77 metabolic features were annotated based on the in-silico prediction, which included biotransformants with deiodination and conjugation. The glucuronide-conjugated form was found at the highest fold-increase (970-fold increase) whereas marginal increases were determined in the deiodinized forms (1.6-fold increase in T3 and 2.0-fold increase in rT3). Further, the systematic approach was evaluated and comparably analyzed by the metabolic profiles of bithionol, which is structurally related to T4. Our current result suggested the potential application of in vitro evaluation system to risk assessment of thyroid-disrupting activity.
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Affiliation(s)
- Byung Kwan Jeon
- Department of Bio and Fermentation Convergence Technology, Kookmin University, Seoul 02707, Republic of Korea
| | - Yurim Jang
- Interdisciplinary Program in Agricultural Genomics, Seoul National University, Seoul 08826, Republic of Korea
| | - Eun Mi Lee
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Sciences, CALS, Seoul National University, Seoul 08826, Republic of Korea
| | - Da Woon Jung
- Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Sciences, CALS, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji Hyun Moon
- Department of Food Science and Biotechnology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Hong Jin Lee
- Department of Food Science and Biotechnology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Do Yup Lee
- Interdisciplinary Program in Agricultural Genomics, Seoul National University, Seoul 08826, Republic of Korea; Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Sciences, CALS, Seoul National University, Seoul 08826, Republic of Korea.
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Mokra K. Endocrine Disruptor Potential of Short- and Long-Chain Perfluoroalkyl Substances (PFASs)-A Synthesis of Current Knowledge with Proposal of Molecular Mechanism. Int J Mol Sci 2021; 22:2148. [PMID: 33670069 PMCID: PMC7926449 DOI: 10.3390/ijms22042148] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/08/2021] [Accepted: 02/18/2021] [Indexed: 01/25/2023] Open
Abstract
Endocrine disruptors are a group of chemical compounds that, even in low concentrations, cause a hormonal imbalance in the body, contributing to the development of various harmful health disorders. Many industry compounds, due to their important commercial value and numerous applications, are produced on a global scale, while the mechanism of their endocrine action has not been fully understood. In recent years, per- and polyfluoroalkyl substances (PFASs) have gained the interest of major international health organizations, and thus more and more studies have been aimed to explain the toxicity of these compounds. PFASs were firstly synthesized in the 1950s and broadly used in the industry in the production of firefighting agents, cosmetics and herbicides. The numerous industrial applications of PFASs, combined with the exceptionally long half-life of these substances in the human body and extreme environmental persistence, result in a common and chronic exposure of the general population to their action. Available data have suggested that human exposure to PFASs can occur during different stages of development and may cause short- or/and long-term health effects. This paper synthetizes the current literature reports on the presence, bioaccumulation and, particularly, endocrine toxicity of selected long- and short-chain PFASs, with a special emphasis on the mechanisms underlying their endocrine actions.
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Affiliation(s)
- Katarzyna Mokra
- Department of Environmental Pollution Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St., 90-236 Lodz, Poland
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5
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Nair PC, Gillani TB, Rawling T, Murray M. Differential inhibition of human CYP2C8 and molecular docking interactions elicited by sorafenib and its major N-oxide metabolite. Chem Biol Interact 2021; 338:109401. [PMID: 33556367 DOI: 10.1016/j.cbi.2021.109401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/12/2021] [Accepted: 01/31/2021] [Indexed: 10/22/2022]
Abstract
The tyrosine kinase inhibitor sorafenib (SOR) is being used increasingly in combination with other anticancer agents like paclitaxel, but this increases the potential for drug toxicity. SOR inhibits several human CYPs, including CYP2C8, which is a major enzyme in the elimination of oncology drugs like paclitaxel and imatinib. It has been reported that CYP2C8 inhibition by SOR in human liver microsomes is potentiated by NADPH-dependent biotransformation. This implicates a SOR metabolite in enhanced inhibition, although the identity of that metabolite is presently unclear. The present study evaluated the capacity of the major N-oxide metabolite of SOR (SNO) to inhibit CYP2C8-dependent paclitaxel 6α-hydroxylation. The IC50 of SNO against CYP2C8 activity was found to be 3.7-fold lower than that for the parent drug (14 μM versus 51 μM). In molecular docking studies, both SOR and SNO interacted with active site residues in CYP2C8, but four additional major hydrogen and halogen bonding interactions were identified between SNO and amino acids in the B-B' loop region and helixes F' and I that comprise the catalytic region of the enzyme. In contrast, the binding of both SOR and SNO to active site residues in the closely related human CYP2C9 enzyme was similar, as were the IC50s determined against CYP2C9-mediated losartan oxidation. These findings suggest that the active metabolite SNO could impair the elimination of coadministered drugs that are substrates for CYP2C8, and mediate toxic adverse events, perhaps in those individuals in whom SNO is formed extensively.
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Affiliation(s)
- Pramod C Nair
- Discipline of Clinical Pharmacology and Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Bedford Park, SA, 5042, Australia
| | - Tina B Gillani
- Pharmacogenomics and Drug Development Group, Discipline of Pharmacology, School of Medical Sciences, Sydney Medical School, University of Sydney, NSW, 2006, Australia
| | - Tristan Rawling
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Ultimo, New South Wales, 2007, Australia
| | - Michael Murray
- Pharmacogenomics and Drug Development Group, Discipline of Pharmacology, School of Medical Sciences, Sydney Medical School, University of Sydney, NSW, 2006, Australia.
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6
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DeBofsky A, Xie Y, Jardine TD, Hill JE, Jones PD, Giesy JP. Effects of the husky oil spill on gut microbiota of native fishes in the North Saskatchewan River, Canada. Aquat Toxicol 2020; 229:105658. [PMID: 33099035 DOI: 10.1016/j.aquatox.2020.105658] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
In July 2016, a Husky Energy pipeline spilled 225,000 L of diluted heavy crude oil, with a portion of the oil entering the North Saskatchewan River near Maidstone, SK, Canada. This event provided a unique opportunity to assess potential effects of a crude oil constituent (namely polycyclic aromatic hydrocarbons, PAHs) on a possible sensitive indicator of freshwater ecosystem health, the gut microbiota of native fishes. In summer 2017, goldeye (Hiodon alosoides), walleye (Sander vitreus), northern pike (Esox lucius), and shorthead redhorse (Moxostoma macrolepidotum) were collected at six locations upstream and downstream of the spill. Muscle and bile were collected from individual fish for quantification of PAHs and intestinal contents were collected for characterization of the microbial community of the gut. Results suggested that host species is a significant determinant of gut microbiota, with significant differences among the species across sites. Concentrations of PAHs in dorsal muscle were significantly correlated with gut community compositions of walleye, but not of the other fishes. Concentrations of PAHs in muscle were also correlated with abundances of several families of bacteria among fishes. This study represents one of the first to investigate the response of the gut microbiome of wild fishes to chemical stressors.
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Affiliation(s)
- Abigail DeBofsky
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Yuwei Xie
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
| | - Timothy D Jardine
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Janet E Hill
- Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Paul D Jones
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - John P Giesy
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada; Department of Environmental Science, Baylor University, Waco, Texas, USA
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7
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Mennillo E, Pretti C, Cappelli F, Luci G, Intorre L, Meucci V, Arukwe A. Novel organ-specific effects of Ketoprofen and its enantiomer, dexketoprofen on toxicological response transcripts and their functional products in salmon. Aquat Toxicol 2020; 229:105677. [PMID: 33181407 DOI: 10.1016/j.aquatox.2020.105677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 06/11/2023]
Abstract
Racemic ketoprofen (RS-KP) and its enantiomer, dexketoprofen (S(+)-KP) are widely used non-steroidal anti-inflammatory drugs (NSAIDs), and commonly detected in the aquatic environment. The present study has evaluated the toxicological effects of RS-KP and S(+)-KP on biotransformation and oxidative stress responses in gills and liver of Atlantic salmon. Fish were exposed for 10 days using different concentrations of RS-KP (1, 10 and 100 μg/L) and S(+)-KP (0.5, 5 and 50 μg/L). Biotransformation and oxidative stress responses were analysed at both transcript and functional levels. In the gills, significant inhibitory effect at transcriptional and enzymatic levels were observed for biotransformation and oxidative stress responses. On the contrary, biotransformation responses were significantly increased at transcriptional and translational levels in the liver, while the associated enzymatic activities did not parallel this trend and were inhibited and further demonstrated by principal component analysis (PCA). Our findings showed that both compounds produced comparable toxicological effects, by producing organ-specific effect differences. RS-KP and S(+)-KP did not bioaccumulate in fish muscle, either due to rapid metabolism or excretion as a result of their hydrophobic properties. Interestingly, the inhibitory effects observed in the gills suggest that these drugs may not undergo first pass metabolism, that might result to downstream differences in toxicological outcomes.
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Affiliation(s)
- Elvira Mennillo
- Department of Biology, Norwegian University of Science and Technology (NTNU), Norway; Department of Veterinary Science, University of Pisa, San Piero a Grado (PI), 56122, Italy; Laboratory of Environmental Toxicology, Department of Pharmacology, University of California, San Diego, La Jolla, CA, United States
| | - Carlo Pretti
- Department of Veterinary Science, University of Pisa, San Piero a Grado (PI), 56122, Italy; Interuniversity Center of Marine Biology (CIBM) "G. Bacci", Leghorn, 57128, Italy
| | - Francesca Cappelli
- Department of Biology, Norwegian University of Science and Technology (NTNU), Norway
| | - Giacomo Luci
- Department of Biology, Norwegian University of Science and Technology (NTNU), Norway; Department of Veterinary Science, University of Pisa, San Piero a Grado (PI), 56122, Italy
| | - Luigi Intorre
- Department of Veterinary Science, University of Pisa, San Piero a Grado (PI), 56122, Italy
| | - Valentina Meucci
- Department of Veterinary Science, University of Pisa, San Piero a Grado (PI), 56122, Italy
| | - Augustine Arukwe
- Department of Biology, Norwegian University of Science and Technology (NTNU), Norway.
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8
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Saunders LJ, Fitzsimmons PN, Nichols JW, Gobas FAPC. In vitro-in vivo extrapolation of hepatic and gastrointestinal biotransformation rates of hydrophobic chemicals in rainbow trout. Aquat Toxicol 2020; 228:105629. [PMID: 33002683 PMCID: PMC7962060 DOI: 10.1016/j.aquatox.2020.105629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 08/24/2020] [Accepted: 09/05/2020] [Indexed: 06/11/2023]
Abstract
Hepatic in vitro biotransformation assays, in combination with in vitro-in vivo extrapolation (IVIVE) and bioaccumulation modeling, can be used to support regulatory bioaccumulation assessments. In most applications, however, these methods ignore the possibility of extrahepatic metabolism. Here we evaluated intestinal biotransformation in rainbow trout using S9 fractions prepared from the upper intestinal (GIT) epithelium. Measured levels of activity determined using standard substrates for phase I and phase II biotransformation enzymes were within 2-fold of activities measured in hepatic S9 fractions. In vitro intrinsic clearance rates for 2-ethylhexyl-4-methoxycinnamate (EHMC; an organic sunscreen agent) and two polycyclic aromatic hydrocarbons (pyrene [PYR] and benzo(a)pyrene [BAP]) were significantly higher in liver S9 fractions than in GIT S9 fractions. For octocrylene (OCT; a second sunscreen agent), however, in vitro intrinsic clearance rates were higher in GIT S9 fractions compared to liver S9 fractions. An existing 'liver only' IVIVE model was expanded to consider biotransformation in both the liver and GIT. Relevant IVIVE scaling factors were developed by morphological, histological, and biochemical evaluation of trout intestines. For chemicals biotransformed at higher rates by hepatic S9 fractions (i.e., BAP, PYR, EHMC), the 'liver & GIT' model yielded whole-body biotransformation rate constants (kMET) that were within 1.2 to 1.4-fold of those estimated using the 'liver only' model. In contrast to these findings, the mean kMET for OCT obtained using the 'liver & GIT' model was 3.3 times higher than the mean kMET derived using the 'liver only' model and was in good agreement with empirical kMET estimates determined previously for trout (<20 % difference). The results of this study suggest that current 'liver only' IVIVE approaches may underestimate in vivo biotransformation rates for chemicals that undergo substantial biotransformation in the GIT.
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Affiliation(s)
- Leslie J Saunders
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | | | - John W Nichols
- United States Environmental Protection Agency, Duluth, MN, USA
| | - Frank A P C Gobas
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada; School of Resource and Environmental Management, Simon Fraser University, Burnaby, British Columbia, Canada.
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9
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Dos Reis IMM, Siebert MN, Zacchi FL, Mattos JJ, Flores-Nunes F, Toledo-Silva GD, Piazza CE, Bícego MC, Taniguchi S, Melo CMRD, Bainy ACD. Differential responses in the biotransformation systems of the oyster Crassostrea gigas (Thunberg, 1789) elicited by pyrene and fluorene: Molecular, biochemical and histological approach - Part II. Aquat Toxicol 2020; 226:105565. [PMID: 32682195 DOI: 10.1016/j.aquatox.2020.105565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 07/02/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
Pyrene (PYR) and fluorene (FLU) are among the sixteen priority Polycyclic Aromatic Hydrocarbons (PAH) of the United States Environmental Protection Agency and are both frequently detected in contaminated sites. Due to the importance of bivalve mollusks in biomonitoring programs and the scarce information on the biotransformation system in these organisms, the aim of this study was to investigate the effect of PYR and FLU at the transcriptional level and the enzymatic activities of some biotransformation systems in the Pacific oyster Crassostrea gigas, and to evaluate the histological effects in their soft tissues. Oysters C. gigas were exposed for 24 h and 96 h to PYR (0.25 and 0.5 μM) and FLU (0.6 and 1.2 μM). After exposure, transcript levels of cytochrome P450 coding genes (CYP1-like, CYP2-like, CYP2AU2, CYP356A1, CYP17α-like), glutathione S tranferase genes (omega GSTO-like and microsomal, MGST-like) and sulfotransferase gene (SULT-like), and the activity of ethoxyresorufin O-deethylase (EROD), Glutathione S-transferase (GST) and microssomal GST (MGST) were evaluated in gills. Histologic changes were also evaluated after the exposure period. PYR and FLU bioconcentrated in oyster soft tissues. The half-life time of PYR in water was lower than fluorene, which is in accordance to the higher lipophilicity and bioconcentration of the former. EROD activity was below the limit of detection in all oysters exposed for 96 h to PYR and FLU. The reproductive stage of the oysters exposed to PYR was post-spawn. Exposure to PYR caused tubular atrophy in digestive diverticula, but had no effect on transcript levels of biotransformation genes. However, the organisms exposed for 96 h to PYR 0.5 μM showed higher MGST activity, suggesting a protective role against oxidative stress in gills of oysters under higher levels of PYR in the tissues. Increased number of mucous cells in mantle were observed in oysters exposed to the higher FLU concentration, suggesting a defense mechanisms. Oysters exposed for 24 h to FLU 1.2 μM were in the ripe stage of gonadal development and showed higher transcript levels of CYP2AU2, GSTO-like and SULT-like genes, suggesting a role in the FLU biotransformation. In addition, after 96 h of exposure to FLU there was a significant increase of mucous cells in the mantle of oysters but no effect was observed on the EROD, total GST and MGST activities. These results suggest that PAH have different effects on transcript levels of biotransformation genes and enzyme activities, however these differences could also be related to the reproductive stage.
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Affiliation(s)
- Isis Mayna Martins Dos Reis
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Marília Nardelli Siebert
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, UFSC, Florianópolis, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Guilherme de Toledo-Silva
- Bioinformatics Laboratory, Cell Biology, Embryology and Genetics Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Clei Endrigo Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Cláudio Manoel Rodrigues de Melo
- Laboratory of Marine Mollusks (LMM), Department of Aquaculture, Center of Agricultural Science, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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10
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Freitas JS, Pereira TSB, Boscolo CNP, Garcia MN, de Oliveira Ribeiro CA, de Almeida EA. Oxidative stress, biotransformation enzymes and histopathological alterations in Nile tilapia (Oreochromis niloticus) exposed to new and used automotive lubricant oil. Comp Biochem Physiol C Toxicol Pharmacol 2020; 234:108770. [PMID: 32335231 DOI: 10.1016/j.cbpc.2020.108770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/02/2020] [Accepted: 04/18/2020] [Indexed: 10/24/2022]
Abstract
Lubricant oils are among oil-based products that are not fully consumed during its use, thereby producing non-biodegradable residues which can cause contamination of natural systems. This study evaluated the toxicity of new and used lubricating oil (0.01 and 0.1 mL L-1) in adult Nile tilapia (Oreochromis niloticus), by assessing the effects on oxidative stress, biotransformation enzymes (liver and gills), and histopathological alterations on hepatic and pancreatic tissues after 3 and 7 days of exposure. Results showed that 3-days exposure to 0.1 mL L-1 of used and new lubricating oil increased the activity of superoxide dismutase (SOD) and malondialdehyde (MDA) levels in liver of O. niloticus, respectively. In gills, catalase (CAT) was decreased in fish exposed to 0.1 mL L-1 of non-used oil after 3 days, but pronounced increases in CAT was detected after 7 days-exposure to both new and used oil. Shorter exposure to both concentrations of new and used oil also raised glutathione-S-transferase activity (GST) in gills. Ethoxyresorufin-O-deethylase (EROD) was induced in liver of fish exposed to 0.1 mL L-1of used oil after 3 and 7 days, however a reduced response of this enzyme was detected in gills of animals from both oil treatments. In vitro analysis showed that hepatic EROD was inhibited by lubricating oil exposures, with more pronounced responses in treatments containing used oil. Hepatic lesions, such as cytoplasmic vacuolization, nuclei abnormally, changes in hepatocytes shape, steatosis, cholestasis, eosinophilic inclusions and necrosis were mainly increased by 7 days exposure to used lubricating oil at higher concentration.
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Affiliation(s)
- Juliane Silberschmidt Freitas
- Department of Biology, Minas Gerais State University (UEMG), R. Ver. Geraldo Moisés da Silva, s/n - Universitário, 38302-192 Ituiutaba, MG, Brazil
| | - Thiago Scremin Boscolo Pereira
- UNIRP - University Center of Rio Preto, São José do Rio Preto, SP, Brazil; FACERES - Morfofunctional Laboratory, FACERES Medical School, São José do Rio Preto, SP, Brazil
| | | | - Mariana Navarro Garcia
- Department of Chemistry and Environmental Science, Universidade Estadual Paulista (IBILCE/UNESP), R. Critóvão Colombo, 2265, 15054-000 São José do Rio Preto, SP, Brazil
| | | | - Eduardo Alves de Almeida
- Department of Natural Sciences, Fundação Universidade Regional de Blumenau, Av. Antonio da Veiga 140, Itoupava Seca, 89030-903 Blumenau, Santa Catarina, Brazil.
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11
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Finke H, Wandt VK, Ebert F, Guttenberger N, Glabonjat RA, Stiboller M, Francesconi KA, Raber G, Schwerdtle T. Toxicological assessment of arsenic-containing phosphatidylcholines in HepG2 cells. Metallomics 2020; 12:1159-1170. [PMID: 32459268 DOI: 10.1039/d0mt00073f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Arsenolipids include a wide range of organic arsenic species that occur naturally in seafood and thereby contribute to human arsenic exposure. Recently arsenic-containing phosphatidylcholines (AsPCs) were identified in caviar, fish, and algae. In this first toxicological assessment of AsPCs, we investigated the stability of both the oxo- and thioxo-form of an AsPC under experimental conditions, and analyzed cell viability, indicators of genotoxicity and biotransformation in human liver cancer cells (HepG2). Precise toxicity data could not be obtained owing to the low solubility in the cell culture medium of the thioxo-form, and the ease of hydrolysis of the oxo-form, and to a lesser degree the thioxo-form. Hydrolysis resulted amongst others in the respective constituent arsenic-containing fatty acid (AsFA). Incubation of the cells with oxo-AsPC resulted in a toxicity similar to that determined for the hydrolysis product oxo-AsFA alone, and there were no indices for genotoxicity. Furthermore, the oxo-AsPC was readily taken up by the cells resulting in high cellular arsenic concentrations (50 μM incubation: 1112 ± 146 μM As cellular), whereas the thioxo-AsPC was substantially less bioavailable (50 μM incubation: 293 ± 115 μM As cellular). Speciation analysis revealed biotransformation of the AsPCs to a series of AsFAs in the culture medium, and, in the case of the oxo-AsPC, to as yet unidentified arsenic species in cell pellets. The results reveal the difficulty of toxicity studies of AsPCs in vitro, indicate that their toxicity might be largely governed by their arsenic fatty acid content and suggest a multifaceted human metabolism of food derived complex arsenolipids.
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Affiliation(s)
- Hannah Finke
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany.
| | - Viktoria K Wandt
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany. and TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany
| | - Franziska Ebert
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany.
| | - Nikolaus Guttenberger
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Ronald A Glabonjat
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Michael Stiboller
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany. and Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Kevin A Francesconi
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Georg Raber
- Institute of Chemistry - Analytical Chemistry, NAWI Graz, University of Graz, Universitätsplatz 1, 8010 Graz, Austria
| | - Tanja Schwerdtle
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany. and TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany
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12
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Shen H, Zhang L, Xu JD, Ding YF, Zhou J, Wu J, Zhang W, Mao Q, Liu LF, Zhu H, Li SL. Effect of sulfur-fumigation process on ginseng: Metabolism and absorption evidences. J Ethnopharmacol 2020; 256:112799. [PMID: 32243989 DOI: 10.1016/j.jep.2020.112799] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/27/2020] [Accepted: 03/24/2020] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sulfur-fumigation has been developed to prevent insects and molds during post-harvest handling of Panax ginseng C.A. Mey (ginseng) in the near decades. Our previous study indicated sulfur-fumigation could transform ginsenosides, the active components of ginseng, into sulfur-containing derivatives (SFCDs), the artifacts with unknown toxicity. However, whether the biotransformation could be occurred and absorption characteristics between ginsenosides and SFCDs are still needed to further investigate. AIM OF THE STUDY To evaluate the effect of sulfur-fumigation process on ginseng through comparing the metabolic profile and absorption characteristics between ginsenoside Rg1, Re and their SFCDs. MATERIALS AND METHODS Intestinal microflora and liver S9 fraction were utilized to compare the metabolic profile, and single-pass intestinal perfusion and Caco-2 cell models were applied to compare the absorption characteristics, between Rg1, Re and their SFCDs. RESULTS Rg1 and Re were metabolized to 7 none sulfur-containing metabolites, while their SFCDs were metabolized to 18 sulfur-containing metabolites. The intestinal absorption and transport of Rg1 and Re were much greater than their SFCDs. Besides, the uptakes of Rg1 and Re were transport-dependent, but their SFCDs were non-transport-dependent. CONCLUSION Ginsenosides and their SFCDs could not be bio-transformed with each other and their absorption characteristics were quite different, which suggested that sulfur-fumigation is not a feasible post-harvest process of ginseng.
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Affiliation(s)
- Hong Shen
- Department of Pharmaceutical Analysis, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, PR China
| | - Li Zhang
- Department of Pharmaceutical Analysis, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, PR China; State Key Laboratory of Natural Medicines, Department of Chinese Medicines Analysis, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Jin-Di Xu
- Department of Pharmaceutical Analysis, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, PR China
| | - Yong-Fang Ding
- Department of Pharmaceutical Analysis, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, PR China
| | - Jing Zhou
- Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine and Jiangsu Branch of China Academy of Chinese Medical Sciences, Nanjing, 210028, PR China
| | - Jie Wu
- Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine and Jiangsu Branch of China Academy of Chinese Medical Sciences, Nanjing, 210028, PR China
| | - Wei Zhang
- Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine and Jiangsu Branch of China Academy of Chinese Medical Sciences, Nanjing, 210028, PR China
| | - Qian Mao
- Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine and Jiangsu Branch of China Academy of Chinese Medical Sciences, Nanjing, 210028, PR China
| | - Li-Fang Liu
- State Key Laboratory of Natural Medicines, Department of Chinese Medicines Analysis, China Pharmaceutical University, Nanjing, 210009, PR China.
| | - He Zhu
- Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine and Jiangsu Branch of China Academy of Chinese Medical Sciences, Nanjing, 210028, PR China.
| | - Song-Lin Li
- Department of Pharmaceutical Analysis, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, PR China; Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine and Jiangsu Branch of China Academy of Chinese Medical Sciences, Nanjing, 210028, PR China.
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13
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Paulino MG, Tavares D, Terezan AP, Sakuragui MM, Pesenti E, Giani A, Cestari MM, Fernandes JB, Fernandes MN. Biotransformations, Antioxidant System Responses, and Histopathological Indexes in the Liver of Fish Exposed to Cyanobacterial Extract. Environ Toxicol Chem 2020; 39:1041-1051. [PMID: 32102115 DOI: 10.1002/etc.4696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/18/2019] [Accepted: 02/19/2020] [Indexed: 06/10/2023]
Abstract
Radiocystis fernandoi, a microcystin (MC) producer, has been common in cyanobacterial blooms in tropical regions. Microcystin is a hepatotoxin that causes tissue damage and even death in animals, including humans; its detoxification process may involve biotransformation and activation of the antioxidant defense system. We evaluated the detoxification pathway, examined the antioxidant defense system responses, and determined the alterations and the organ histopathological indexes in the liver of the tropical fish Hoplias malabaricus after acute and subchronic intraperitoneal exposure to microcystin. The crude microcystin extract of R. fernandoi had predominantly MC-RR and MC-YR. The detoxification process was activated by increasing ethoxyresorufin-O-deethylase activity, whereas glutathione S-transferase was inhibited. The activity of the antioxidant defense enzymes superoxide dismutase (SOD) and glutathione peroxidase decreased after acute exposure; the SOD-catalase system and the glutathione level increased after subchronic exposure. The carbonyl protein level, lipid peroxidation (LPO), and DNA damage were unchanged after acute exposure, whereas protein carbonyl was unchanged, LPO decreased, and DNA damage increased after subchronic exposure. Histopathological alteration indexes differed between acute and subchronic exposure, but the histopathological organ indexes indicate liver dysfunction in both exposure periods. We conclude that MC-RR and MC-YR induce different liver responses depending on the time of exposure, and the antioxidant defense responses after subchronic exposure may help to partially restore the liver function. Environ Toxicol Chem 2020;39:1041-1051. © 2020 SETAC.
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Affiliation(s)
- Marcelo Gustavo Paulino
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Driele Tavares
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Ana Paula Terezan
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | | | - Emanuele Pesenti
- Department of Genetics, Federal University of Paraná, Curitiba, Paraná, Brazil
| | - Alessandra Giani
- Department of Botany, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - João Batista Fernandes
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Marisa Narciso Fernandes
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, São Paulo, Brazil
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14
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Bykov VV, Leonov KA, Serebrov VY, Chernysheva GA, Smol'yakova VI, Solov'ev MA, Udut EV, Fisenko VP, Udut VV. Metabolism of a New Antiaggregant, Indolinone Derivative. Bull Exp Biol Med 2020; 168:739-742. [PMID: 32333310 DOI: 10.1007/s10517-020-04792-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Indexed: 11/26/2022]
Abstract
Cytochrome p450-mediated metabolism of GRS (indolinone antiaggregant) and its effects on activities of cytochrome p450 isoenzymes were studied. Inhibition of 6 isomers of cytochrome p450 in human liver microsomes was studied with the use of specific substrates. It was found that human liver cytochrome p450 enzymes could not induce degradation of GRS and that GRS was not an inductor or inhibitor of cytochrome p450 family members 1A2, 2C9, 2C19, 2D6, 2C8, and 3A4. Hence, clinical use of the prospective antiaggregant would not involve the risk of uncontrolled fluctuations in GRS concentrations in the organism because of interactions between the drugs.
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Affiliation(s)
- V V Bykov
- Siberean State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia.
- Innovation Pharmacological Development, Moscow, Russia.
| | - K A Leonov
- Innovation Pharmacological Development, Moscow, Russia
| | - V Yu Serebrov
- Siberean State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - G A Chernysheva
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - V I Smol'yakova
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - M A Solov'ev
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
- National Research Tomsk State University, Tomsk, Russia
| | - E V Udut
- Siberean State Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V P Fisenko
- I. M. Se- chenov First Moscow State Medical University, Ministry of Heath of the Russian Federation (Sechenov University), Moscow, Russia
| | - V V Udut
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
- National Research Tomsk State University, Tomsk, Russia
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15
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Tamborini L, Previtali C, Annunziata F, Bavaro T, Terreni M, Calleri E, Rinaldi F, Pinto A, Speranza G, Ubiali D, Conti P. An Enzymatic Flow-Based Preparative Route to Vidarabine. Molecules 2020; 25:molecules25051223. [PMID: 32182773 PMCID: PMC7179437 DOI: 10.3390/molecules25051223] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/27/2020] [Accepted: 03/07/2020] [Indexed: 12/11/2022] Open
Abstract
The bi-enzymatic synthesis of the antiviral drug vidarabine (arabinosyladenine, ara-A), catalyzed by uridine phosphorylase from Clostridium perfringens (CpUP) and a purine nucleoside phosphorylase from Aeromonas hydrophila (AhPNP), was re-designed under continuous-flow conditions. Glyoxyl–agarose and EziGTM1 (Opal) were used as immobilization carriers for carrying out this preparative biotransformation. Upon setting-up reaction parameters (substrate concentration and molar ratio, temperature, pressure, residence time), 1 g of vidarabine was obtained in 55% isolated yield and >99% purity by simply running the flow reactor for 1 week and then collecting (by filtration) the nucleoside precipitated out of the exiting flow. Taking into account the substrate specificity of CpUP and AhPNP, the results obtained pave the way to the use of the CpUP/AhPNP-based bioreactor for the preparation of other purine nucleosides.
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Affiliation(s)
- Lucia Tamborini
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy; (C.P.); (F.A.); (P.C.)
- Correspondence: (L.T.); (D.U.); Tel.: +39-02-50319367 (L.T.); +39-0382-987889 (D.U.)
| | - Clelia Previtali
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy; (C.P.); (F.A.); (P.C.)
| | - Francesca Annunziata
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy; (C.P.); (F.A.); (P.C.)
| | - Teodora Bavaro
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (T.B.); (M.T.); (E.C.); (F.R.)
| | - Marco Terreni
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (T.B.); (M.T.); (E.C.); (F.R.)
| | - Enrica Calleri
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (T.B.); (M.T.); (E.C.); (F.R.)
| | - Francesca Rinaldi
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (T.B.); (M.T.); (E.C.); (F.R.)
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences, University of Milan, via Celoria 2, 20133 Milano, Italy;
| | - Giovanna Speranza
- Department of Chemistry, University of Milan, via Golgi 19, 20133 Milano, Italy;
| | - Daniela Ubiali
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, 27100 Pavia, Italy; (T.B.); (M.T.); (E.C.); (F.R.)
- Correspondence: (L.T.); (D.U.); Tel.: +39-02-50319367 (L.T.); +39-0382-987889 (D.U.)
| | - Paola Conti
- Department of Pharmaceutical Sciences, University of Milan, via Mangiagalli 25, 20133 Milano, Italy; (C.P.); (F.A.); (P.C.)
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Zacchi FL, Dos Reis IMM, Siebert MN, Mattos JJ, Flores-Nunes F, Toledo-Silva GD, Piazza CE, Bícego MC, Taniguchi S, Bainy ACD. Differential responses in the biotransformation systems of the oyster Crassostrea gasar (Adanson, 1757) elicited by pyrene and fluorene: molecular, biochemical and histological approach - Part I. Aquat Toxicol 2019; 216:105318. [PMID: 31590133 DOI: 10.1016/j.aquatox.2019.105318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are among the main contaminants in aquatic environments. PAHs can affect organisms due to their carcinogenic, mutagenic and/or teratogenic characteristics. Depending on the PAHs, concentration, and period of exposure, biological damage can occur leading to histopathologic alterations. This study aimed to evaluate the molecular, biochemical and histological responses of the oyster Crassostrea gasar exposed to pyrene (0.25 and 0.5 μM) and fluorene (0.6 and 1.2 μM), after exposure for 24 and 96 h. Concentrations of both PAHs were quantified in the water and in oyster tissues. Transcript levels of phase I (CYP3475C1, CYP2-like, CYP2AU1 and CYP356A) and phase II (GSTO-like, MGST-like and SULT-like) biotransformation-related genes and the activities of ethoxyresorufin-O-deethylase (EROD), total and microsomal glutathione S-transferase (GST and MGST) were evaluated in the gills. Also, histological changes and localization of mRNA transcripts CYP2AU1 in gills, mantle, and digestive diverticula were evaluated. Both PAHs accumulated in oyster tissues. Pyrene half-life in water was significantly lower than fluorene. Transcript levels of all genes were higher in oysters exposed to of pyrene 0.5 μM (24 h). Only CYP2AU1 gene was up-regulated by fluorene exposure. EROD and MGST activities were higher in oysters exposed to pyrene. Tubular atrophy in the digestive diverticula and an increased number of mucous cells in the mantle were observed in oysters exposed to pyrene. CYP2AU1 transcripts were observed in different tissues of pyrene-exposed oysters. A significant correlation was observed between tubular atrophy and the CYP2AU1 hybridization signal in oysters exposed to pyrene, suggesting the sensibility of the species to this PAH. These results suggest an important role of biotransformation-related genes and enzymes and tissue alterations associated to pyrene metabolism but not fluorene. In addition, it reinforces the role of CYP2AU1 gene in the biotransformation process of PAHs in the gills of C. gasar.
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Affiliation(s)
- Flávia Lucena Zacchi
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Isis Mayna Martins Dos Reis
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Marília Nardelli Siebert
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Jacó Joaquim Mattos
- Aquaculture Pathology Research Center - NEPAQ, Federal University of Santa Catarina, UFSC, Florianópolis, Brazil
| | - Fabrício Flores-Nunes
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Guilherme de Toledo-Silva
- Bioinformatics Laboratory, Cell biology, Embryology and Genetics Department, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Clei Endrigo Piazza
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil
| | - Márcia Caruso Bícego
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Satie Taniguchi
- Laboratory of Marine Organic Chemistry - LABQOM, Oceanographic Institute, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Afonso Celso Dias Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry - LABCAI, Federal University of Santa Catarina, UFSC, Florianópolis, SC, Brazil.
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17
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Metian M, Renaud F, Oberhänsli F, Teyssié JL, Temara A, Warnau M. Biokinetics of the anionic surfactant linear alkylbenzene sulfonate (LAS) in the marine fish Sparus aurata: Investigation via seawater and food exposure pathways. Aquat Toxicol 2019; 216:105316. [PMID: 31600609 DOI: 10.1016/j.aquatox.2019.105316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/27/2019] [Accepted: 09/24/2019] [Indexed: 05/25/2023]
Abstract
Uptake and depuration kinetics of [14C]C12-6-linear alkylbenzene sulfonate (LAS) in the fish Sparus aurata were determined during experimental exposure via seawater or food separately under laboratory conditions. The fish concentrated LAS from seawater (using realistic contaminant concentrations) with a mean BCF value of 20 ± 2 L kg-1 reached within 3 days and following a one-compartment exponential model. High differences in BCF were noted among organs, with values ranking in the order gall bladder (1400 ± 600 L kg-1) >> digestive tract (52 ± 9 L kg-1) > liver (38 ± 4 L kg-1) > gills (16 ± 3 L kg-1) > skin (13 ± 2 L kg-1) > head (9 ± 1 L kg-1) > muscles (4 ± 1 L kg-1). After three days of exposure, 14C activity decreased in gall bladder while it remained constant in other organs. Biotransformation and elimination processes could explain this phenomenon observed in gall bladder. LAS depuration was rapid in all organs (with up to 90% elimination within 2 days) and depuration kinetics was best fitted by a two-compartment exponential-model. When fish were fed with radiolabeled food, ingested LAS was transferred to organs within the first hours following the feeding. Model best describing depuration kinetics of LAS in the whole fish indicated that the contaminant can be considered as not assimilated.
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Affiliation(s)
- Marc Metian
- International Atomic Energy Agency - Environment Laboratories, Radioecology Laboratory, 4a, Quai Antoine Ier, MC-98000, Principality of Monaco, Monaco.
| | - Florent Renaud
- International Atomic Energy Agency - Environment Laboratories, Radioecology Laboratory, 4a, Quai Antoine Ier, MC-98000, Principality of Monaco, Monaco; Littoral Environnement et Sociétés (LIENSs), UMR 6250, CNRS-Université de La Rochelle, 2 Rue Olympe de Gouges, F-17042, La Rochelle Cedex 01, France
| | - François Oberhänsli
- International Atomic Energy Agency - Environment Laboratories, Radioecology Laboratory, 4a, Quai Antoine Ier, MC-98000, Principality of Monaco, Monaco
| | - Jean-Louis Teyssié
- International Atomic Energy Agency - Environment Laboratories, Radioecology Laboratory, 4a, Quai Antoine Ier, MC-98000, Principality of Monaco, Monaco
| | - Ali Temara
- Procter & Gamble, The Procter & Gamble Company, Temselaan 100, 1853, Strombeek-Bever, Belgium
| | - Michel Warnau
- International Atomic Energy Agency - Environment Laboratories, Radioecology Laboratory, 4a, Quai Antoine Ier, MC-98000, Principality of Monaco, Monaco
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Zhou R, Lu G, Yan Z, Bao X, Zhang P, Jiang R. Bioaccumulation and biochemical effects of ethylhexyl methoxy cinnamate and its main transformation products in zebrafish. Aquat Toxicol 2019; 214:105241. [PMID: 31301543 DOI: 10.1016/j.aquatox.2019.105241] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/04/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
The purpose of this study was to investigate the bioaccumulation and biochemical responses exposed to one of the main organic ultraviolet (UV) pollutants in the environment, ethylhexyl methoxy cinnamate (EHMC), and its main transformation product, either alone or in combination in zebrafish (Danio rerio). Four-month-old zebrafish were exposed to EHMC (34.4, 344 nmol/L) solution for 14 days, the species and contents of EHMC transformation products in zebrafish were determined and 3,5-dichloro-2-hydroxyacetophenone (3,5DCl2HAcP) was the one with the highest concentration in transformation products. Then, zebrafish were exposed to EHMC, 3,5DCl2HAcP alone and mixed solution for 21 days. At 7, 14 and 21 d, the related indexes of antioxidant defense system were determined. Results showed that both EHMC and 3,5DCl2HAcP can lead to the increase of malondialdehyde (MDA) and glutathione (GSH) contents, superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR) activities in visceral mass compared with the corresponding control group, thus produced oxidative stress effect in organism and 3,5DCl2HAcP even showed stronger oxidative stress than EHMC. The effects of the two lower concentration co-exposure groups were similar and more significant to that of single exposure groups, while excessive oxidative stress occurred at the highest co-exposure group indicated by the decrease of GSH content, SOD, CAT, GR activities and the continued increase of MDA content. At 21 d, estradiol (E2), vitellogenin (Vtg) and testosterone (T) contents, estrogen receptor (Esr), progesterone receptor (Pgr), androgen receptor (Ar), Vtg1, P450 aromatase (Cyp19a1) and 17β-hydroxysteroid dehydrogenase (Hsd17b3) expression were all significantly increased when exposed to 3,5DCl2HAcP alone, showing complex estrogen and androgen effects. When exposed to EHMC alone, E2 and Vtg contents, Esr, Pgr, Vtg1, Cyp19a1 and Hsd17b1 gene expression levels decreased significantly, and T content and Ar and Hsd17b3 expression increased significantly, indicated that EHMC can produce anti-estrogen and androgen effect. Last, the decrease of estrogen effect and increase of androgen effect in co-exposure group suggested that 3,5DCl2HAcP might weaken the estrogen effect and promote the androgen effect of EHMC.
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Affiliation(s)
- Ranran Zhou
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Guanghua Lu
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; Water Conservancy Project & Civil Engineering College, Tibet Agriculture & Animal Husbandry University, Linzhi 860000, China.
| | - Zhenhua Yan
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Xuhui Bao
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Peng Zhang
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Runren Jiang
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
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Milutinović MG, Maksimović VM, Cvetković DM, Nikodijević DD, Stanković MS, Pešić M, Marković SD. Potential of Teucrium chamaedrys L. to modulate apoptosis and biotransformation in colorectal carcinoma cells. J Ethnopharmacol 2019; 240:111951. [PMID: 31085226 DOI: 10.1016/j.jep.2019.111951] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/08/2019] [Accepted: 05/08/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Teucrum chamaedrys L. is one of the known medicinal plants, useful for treatment of various health problems, especially digestive. In this study, we investigated methanol, ethyl-acetate and acetone extracts of T. chamaedrys in respect to their anticancer properties in SW480 colorectal cancer cells. MATERIALS AND METHODS Cytotoxicity and proapoptotic potential were assessed by MTT cell viability assay and AO/EB double staining. Molecular mechanisms of induced apoptosis were determined by monitoring Fas receptor protein expression through immunofluorescence, Caspase 8 and 9 activity, as well as concentrations of O2.- spectrophotometrically. Additionally, mRNA expression of biotransformation enzymes (CYP1A1, CYP1B1, GSTP1) and membrane transporters (MRP1 and MRP2) involved in drug resistance were investigated by qPCR method. Qualitative analysis of individual phenolic compounds was performed by reversed phase HPLC-MS analysis. RESULTS Methanol extract shows the best cytotoxicity and selectivity compared to ethyl-acetate and acetone extracts, mainly causing apoptosis of SW480 cells, without affecting normal HaCaT keratinocytes. The increased expression of Fas receptor protein and caspase 8 activity indicate that the death receptor-mediated pathway plays a crucial role in the observed apoptosis. The increased caspase 9 activity and O2.- concentration suggest that mitochondria are also involved in the apoptosis. T. chamaedrys methanol extract inhibits mRNA expression of CYP1A1, CYP1B1, GSTP1, MRP1 and MRP2 in SW480 cells. CONCLUSIONS Induction of apoptosis and inhibition of CYP1A1, CYP1B1, GSTP1, MRP1 and MRP2 mRNA expression implies that T. chamaedrys can serve as a valuable source of bioactive compounds as dietary supplements or selective anticancer agents, with the ability to induce apoptosis and modulate drug resistance in colorectal cancer cells.
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Affiliation(s)
- Milena G Milutinović
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia.
| | - Vuk M Maksimović
- Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030, Belgrade, Serbia
| | - Danijela M Cvetković
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Danijela D Nikodijević
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Milan S Stanković
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
| | - Milica Pešić
- Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Despota Stefana 142, 11060, Belgrade, Serbia
| | - Snežana D Marković
- Faculty of Science, Department of Biology and Ecology, University of Kragujevac, Radoja Domanovića 12, 34000, Kragujevac, Serbia
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20
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Chen PY, Li S, Koh YC, Wu JC, Yang MJ, Ho CT, Pan MH. Oolong Tea Extract and Citrus Peel Polymethoxyflavones Reduce Transformation of l-Carnitine to Trimethylamine- N-Oxide and Decrease Vascular Inflammation in l-Carnitine Feeding Mice. J Agric Food Chem 2019; 67:7869-7879. [PMID: 31287296 DOI: 10.1021/acs.jafc.9b03092] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Carnitine, a dietary quaternary amine mainly from red meat, is metabolized to trimethylamine (TMA) by gut microbiota and subsequently oxidized to trimethylamine-N-oxide (TMAO) by host hepatic enzymes, flavin monooxygenases (FMOs). The objective of this study aims to investigate the effects of flavonoids from oolong tea and citrus peels on reducing TMAO formation and protecting vascular inflammation in carnitine-feeding mice. The results showed that mice treated with 1.3% carnitine in drinking water significantly (p < 0.05) increased the plasma levels of TMAO compared to control group, whereas the plasma TMAO was remarkedly reduced by flavonoids used. Meanwhile, these dietary phenolic compounds significantly (p < 0.05) decreased hepatic FMO3 mRNA levels compared to carnitine only group. Additionally, oolong tea extract decreased mRNA levels of vascular inflammatory markers such as tissue necrosis factor-alpha (TNF-α), vascular cell adhesion molecule-1 (VCAM-1) and E-selectin. Polymethoxyflavones significantly lowered the expression of VCAM-1 and showed a decreasing trend in TNF-α and E-selectin mRNA expression compared to the carnitine group. Genus-level analysis of the gut microbiota in the cecum showed that these dietary phenolic compounds induced an increase in the relative abundances of Bacteroides. Oolong tea extract-treated group up-regulated Lactobacillus genus, compared to the carnitine only group. Administration of polymethoxyflavones increased Akkermansia in mice.
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Affiliation(s)
- Pei-Yu Chen
- Institute of Food Sciences and Technology , National Taiwan University , Taipei 106 , Taiwan
| | - Shiming Li
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization and Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains , Huanggang Normal University , Huanggang , Hubei China
| | - Yen-Chun Koh
- Institute of Food Sciences and Technology , National Taiwan University , Taipei 106 , Taiwan
| | - Jia-Ching Wu
- Institute of Food Sciences and Technology , National Taiwan University , Taipei 106 , Taiwan
| | - Meei-Ju Yang
- Tea Research and Extension Station , Taoyuan 326 , Taiwan
| | - Chi-Tang Ho
- Department of Food Science , Rutgers University , New Brunswick , New Jersey 08901 , United States
| | - Min-Hsiung Pan
- Institute of Food Sciences and Technology , National Taiwan University , Taipei 106 , Taiwan
- Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization and Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains , Huanggang Normal University , Huanggang , Hubei China
- Department of Medical Research, China Medical University Hospital , China Medical University , Taichung , Taiwan
- Department of Health and Nutrition Biotechnology , Asia University , Taichung , Taiwan
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21
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Wu S, Wu H, Button M, Konnerup D, Brix H. Impact of engineered nanoparticles on microbial transformations of carbon, nitrogen, and phosphorus in wastewater treatment processes - A review. Sci Total Environ 2019; 660:1144-1154. [PMID: 30743910 DOI: 10.1016/j.scitotenv.2019.01.106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Concern regarding the potential negative impacts of released engineered nanoparticles (ENPs) on pollutant removal performance of wastewater treatment systems has received booming attention in recent years. However, the conclusions drawn from different studies often lead to fragmented overall knowledge, some of which are even contradictory. This scenario shows the necessity for a comprehensive review of the interactions of ENPs in wastewater treatment systems, particularly on the impacts of ENPs on microbial processes of carbon (C), nitrogen (N), and phosphorus (P) removal in water treatment systems. This review introduced the impact of 6 often reported ENPs in 5 types of treatment systems. We found that exposure to most of the investigated ENPs at low concentrations doesn't adversely influence the growth of the heterotrophic microbes, which are responsible for organic matter removal. The impacts of ENPs on various microbial nitrogen transformation processes have been investigated. Dosing of ENPs often causes acute microbial nitrogen removal inhibition at various concentrations, but does not influence long-term operation due to microbial adaption. No significant negative effects on biological phosphorus removal in different wastewater treatment processes have been reported after both short-term and long-term exposure (except copper nanoparticles). Environmentally relevant concentrations of ENPs have been reported to enhance the photosynthetic capacity of wetland plants, whereas chronic inhibition to photosynthesis was found in exposure to high concentrations of ENPs. Inhibition effects are often overestimated in pure cultivated toxicity test assays compared to testing with artificially prepared wastewater containing various ingredients or with real wastewater. Potential ligands in real wastewater can bind with ENPs and lower their dissolution. Some challenges exist regarding detection and quantification techniques of ENPs at environmental concentrations, modeling of engineered nanomaterial release on a worldwide scale, and inhibitory mechanisms to microbial transformations.
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Affiliation(s)
- Shubiao Wu
- Aarhus Institute of Advanced Studies, Aarhus University, Aarhus 8000C, Denmark; Department of Bioscience, Aarhus University, Aarhus 8000C, Denmark.
| | - Haiming Wu
- College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Mark Button
- Department of Earth and Environmental Sciences, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada
| | - Dennis Konnerup
- Aarhus Institute of Advanced Studies, Aarhus University, Aarhus 8000C, Denmark; Department of Bioscience, Aarhus University, Aarhus 8000C, Denmark
| | - Hans Brix
- Department of Bioscience, Aarhus University, Aarhus 8000C, Denmark
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22
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Wang ZP, Wang QQ, Liu S, Liu XF, Yu XJ, Jiang YL. Efficient Conversion of Cane Molasses Towards High-Purity Isomaltulose and Cellular Lipid Using an Engineered Yarrowia lipolytica Strain in Fed-Batch Fermentation. Molecules 2019; 24:E1228. [PMID: 30925836 PMCID: PMC6480463 DOI: 10.3390/molecules24071228] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/19/2019] [Accepted: 03/26/2019] [Indexed: 12/29/2022] Open
Abstract
: Cane molasses is one of the main by-products of sugar refineries, which is rich in sucrose. In this work, low-cost cane molasses was introduced as an alternative substrate for isomaltulose production. Using the engineered Yarrowia lipolytica, the isomaltulose production reached the highest (102.6 g L-¹) at flask level with pretreated cane molasses of 350 g L-¹ and corn steep liquor of 1.0 g L-¹. During fed-batch fermentation, the maximal isomaltulose concentration (161.2 g L-¹) was achieved with 0.96 g g-¹ yield within 80 h. Simultaneously, monosaccharides were completely depleted, harvesting the high isomaltulose purity (97.4%) and high lipid level (12.2 g L-¹). Additionally, the lipids comprised of 94.29% C16 and C18 fatty acids, were proved suitable for biodiesel production. Therefore, the bioprocess employed using cane molasses in this study was low-cost and eco-friendly for high-purity isomaltulose production, coupling with valuable lipids.
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Affiliation(s)
- Zhi-Peng Wang
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China.
| | - Qin-Qing Wang
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
- Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China.
| | - Song Liu
- Development & Reform Bureau, West Coast New Area, Qingdao, Shandong 266000, China.
| | - Xiao-Fang Liu
- Key Laboratory of Sustainable Development of Polar Fishery, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China.
| | - Xin-Jun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China.
| | - Yun-Lin Jiang
- Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China.
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23
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Zhang J, Wang Y, Shao Z, Li J, Zan S, Zhou S, Yang R. Two selenium tolerant Lysinibacillus sp. strains are capable of reducing selenite to elemental Se efficiently under aerobic conditions. J Environ Sci (China) 2019; 77:238-249. [PMID: 30573088 DOI: 10.1016/j.jes.2018.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 07/31/2018] [Accepted: 08/03/2018] [Indexed: 06/09/2023]
Abstract
Microbes play important roles in the transport and transformation of selenium (Se) in the environment, thereby influencing plant resistance to Se and Se accumulation in plant. The objectives are to characterize the bacteria with high Se tolerance and reduction capacity and explore the significance of microbial origins on their Se tolerance, reduction rate and efficiency. Two bacterial strains were isolated from a naturally occurred Se-rich soil at tea orchard in southern Anhui Province, China. The reduction kinetics of selenite was investigated and the reducing product was characterized using scanning electron microscopy and transmission electron microscopy-energy dispersive spectroscopy. The bacteria were identified as Lysinibacillus xylanilyticus and Lysinibacillus macrolides, respectively, using morphological, physiological and molecular methods. The results showed that the minimal inhibitory concentrations (MICs) of selenite for L. xylanilyticus and L. macrolides were 120 and 220 mmol/L, respectively, while MICs of selenate for L. xylanilyticus and L. macrolides were 800 and 700 mmol/L, respectively. Both strains aerobically reduced selenite with an initial concentration of 1.0 mmol/L to elemental Se nanoparticles (SeNPs) completely within 36 hr. Biogenic SeNPs were observed both inside and outside the cells suggesting either an intra- or extracellular reduction process. Our study implied that the microbes from Se-rich environments were more tolerant to Se and generally quicker and more efficient than those from Se-free habitats in the reduction of Se oxyanions. The bacterial strains with high Se reduction capacity and the biological synthesized SeNPs would have potential applications in agriculture, food, environment and medicine.
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Affiliation(s)
- Ju Zhang
- College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China
| | - Yue Wang
- College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China
| | - Zongyuan Shao
- College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China
| | - Jing Li
- College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China
| | - Shuting Zan
- College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China; Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, Anhui Normal University, Wuhu 241002, China
| | - Shoubiao Zhou
- College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China; Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, Anhui Normal University, Wuhu 241002, China; Institute of Functional Food, Anhui Normal University, Wuhu 241002, China
| | - Ruyi Yang
- College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241002, China; Anhui Provincial Engineering Laboratory of Water and Soil Pollution Control and Remediation, Anhui Normal University, Wuhu 241002, China; Institute of Functional Food, Anhui Normal University, Wuhu 241002, China.
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24
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Falfushynska H, Sokolov EP, Haider F, Oppermann C, Kragl U, Ruth W, Stock M, Glufke S, Winkel EJ, Sokolova IM. Effects of a common pharmaceutical, atorvastatin, on energy metabolism and detoxification mechanisms of a marine bivalve Mytilus edulis. Aquat Toxicol 2019; 208:47-61. [PMID: 30610964 DOI: 10.1016/j.aquatox.2018.12.022] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/27/2018] [Accepted: 12/28/2018] [Indexed: 05/20/2023]
Abstract
Biologically active compounds from pharmaceuticals cause concern due to their common occurrence in water and sediments of urbanized coasts and potential threat to marine organisms. Atorvastatin (ATO), a globally prescribed drug, is environmentally stable and bioavailable to marine organisms; however, the physiological and toxic effects of this drug on ecologically important coastal species are yet to be elucidated. We studied the effect of ATO (˜1.2 μg L-1) on bioenergetics (including whole-organism and mitochondrial respiration, as well as tissue energy reserves and mRNA expression of genes involved in mitochondrial biogenesis and fatty acid metabolism in the gills and the digestive gland) of a keystone bivalve Mytulis edulis (the blue mussel) from the Baltic Sea. Xenobiotic detoxification systems including activity and mRNA expression of P-glycoprotein, and Phase I and II biotransformation enzymes (cytochrome P450 monooxygenase CYP1A and glutathione transferase, GST) were also assessed in the gill and digestive gland of the mussels. Exposure to ATO caused rapid uptake and biotransformation of the drug by the mussels. Standard metabolic rate of ATO-exposed mussels increased by 56% indicating higher maintenance costs, yet no changes were detected in the respiratory capacity of isolated mitochondria. ATO exposure led to ˜60% decrease in the lysosomal membrane stability of hemocytes and ˜3-fold decrease in the whole-organism P-glycoprotein-driven and diffusional efflux of xenobiotics indicating altered membrane properties. The digestive gland was a major target of ATO toxicity in the mussels. Exposure of mussels to ATO led to depletion of lipid, carbohydrate and protein pools, and suppressed transcription of key enzymes involved in mitochondrial biogenesis (peroxisome proliferator-activated receptor gamma coactivator 1-alpha PGC-1α) and fatty acid metabolism (acetyl-CoA carboxylase and CYP4Y1) in the digestive gland. No bioenergetic disturbances were observed in the gills of ATO-exposed mussels, and elevated GST activity indicated enhanced ATO detoxification in this tissue. These data demonstrate that ATO can act as a metabolic disruptor and chemosensitizer in keystone marine bivalves and warrant further investigations of statins as emerging pollutants of concern in coastal marine ecosystems.
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Affiliation(s)
- Halina Falfushynska
- Department of Marine Biology, Institute of Biological Sciences, University of Rostock, Rostock, Germany; Department of Human Health, Physical Rehabilitation and Vital Activity, Ternopil V. Hnatiuk National Pedagogical University, Ternopil, Ukraine
| | - Eugene P Sokolov
- Leibniz Institute for Baltic Sea Research, Leibniz ScienceCampus Phosphorus Research Rostock, Warnemünde, Germany
| | - Fouzia Haider
- Department of Marine Biology, Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Christina Oppermann
- Department of Industrial Chemistry, Institute of Chemistry, University of Rostock, Rostock, Germany
| | - Udo Kragl
- Department of Industrial Chemistry, Institute of Chemistry, University of Rostock, Rostock, Germany
| | - Wolfgang Ruth
- Department of Industrial Chemistry, Institute of Chemistry, University of Rostock, Rostock, Germany
| | - Marius Stock
- Department of Marine Biology, Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Sabrina Glufke
- Department of Marine Biology, Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Eileen J Winkel
- Department of Marine Biology, Institute of Biological Sciences, University of Rostock, Rostock, Germany
| | - Inna M Sokolova
- Department of Marine Biology, Institute of Biological Sciences, University of Rostock, Rostock, Germany; Department of Maritime Systems, Interdisciplinary Faculty, University of Rostock, Rostock, Germany.
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25
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Barreto A, Luis LG, Pinto E, Almeida A, Paíga P, Santos LHMLM, Delerue-Matos C, Trindade T, Soares AMVM, Hylland K, Loureiro S, Oliveira M. Effects and bioaccumulation of gold nanoparticles in the gilthead seabream (Sparus aurata) - Single and combined exposures with gemfibrozil. Chemosphere 2019; 215:248-260. [PMID: 30317096 DOI: 10.1016/j.chemosphere.2018.09.175] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 09/18/2018] [Accepted: 09/29/2018] [Indexed: 06/08/2023]
Abstract
Gold nanoparticles (AuNPs) are found in a wide range of applications and therefore expected to present increasing levels in the environment. There is however limited knowledge concerning the potential toxicity of AuNPs as well as their combined effects with other pollutants. Hence, the present study aimed to investigate the effects of AuNPs alone and combined with the pharmaceutical gemfibrozil (GEM) on different biological responses (behaviour, neurotransmission, biotransformation and oxidative stress) in one of the most consumed fish in southern Europe, the seabream Sparus aurata. Fish were exposed for 96 h to waterborne 40 nm AuNPs with two coatings - citrate and polyvinylpyrrolidone (PVP), alone or combined with GEM. Antioxidant defences were induced in liver and gills upon both AuNPs exposure. Decreased swimming performance (1600 μg.L-1) and oxidative damage in gills (4 and 80 μg.L-1) were observed following exposure to polyvinylpyrrolidone coated gold nanoparticles (PVP-AuNPs). Generally, accumulation of gold in fish tissues and deleterious effects in S. aurata were higher for PVP-AuNPs than for cAuNPs exposures. Although AuNPs and GEM combined effects in gills were generally low, in liver, they were higher than the predicted. The accumulation and effects of AuNPs showed to be dependent on the size, coating, surface charge and aggregation/agglomeration state of nanoparticles. Additionally, it was tissue' specific and dependent on the presence of other contaminants. Although, gold intake by humans is expected to not exceed the estimated tolerable daily intake, it is highly recommended to keep it on track due to the increasing use of AuNPs.
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Affiliation(s)
- A Barreto
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - L G Luis
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - E Pinto
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - A Almeida
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - P Paíga
- LAQV/REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal
| | - L H M L M Santos
- LAQV/REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal; Catalan Institute for Water Research (ICRA), Carrer Emili Grahit 101, 17003 Girona, Spain
| | - C Delerue-Matos
- LAQV/REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal
| | - T Trindade
- Departamento de Química & CICECO - Aveiro Instituto de Materiais, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - A M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - K Hylland
- Department of Biosciences, University of Oslo, PO Box 1066, N-0316 Oslo, Norway
| | - S Loureiro
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - M Oliveira
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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26
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Donelli MG, Vecchi A, Bossi A, Colombo T, Sironi M, Pantarotto C, Garattini S, Spreafico F. Effect of Phenobarbital on Cyclophosphamide Cytotoxic Activity and Pharmacokinetics in Mice. Tumori 2018; 63:137-46. [PMID: 898284 DOI: 10.1177/030089167706300203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The interaction between cyclophosphamide (CPA) and phenobarbital (PB) was investigated in B6D2F, mice, checking both the antileukemic and immunosuppressive activity together with the serum levels of CPA and its metabolites. A reduced cytotoxic activity of CPA has been observed when PB is given for 2 days before CPA and an interval of at least 6 hours elapses between the last treatment of PB and the administration of CPA. On the contrary, when PB is given simultaneously with CPA for 2 or 4 consecutive days, an increased antileukemic activity of CPA occurs. In the experimental condition where PB decreases the activity of CPA, serum levels of CPA, assayed by means of a new specific gas-chromatographic method, and of its NBP-alkylating metabolites, indicate that this effect may be explained on a pure pharmacokinetic basis. However, for the situation where an increased effect of CPA was observed under the influence of PB, pharmacokinetic data did not provide a clear explanation.
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Lee EH, Kim M, Moon YS, Yim UH, Ha SY, Jeong CB, Lee JS, Jung JH. Adverse effects and immune dysfunction in response to oral administration of weathered Iranian heavy crude oil in the rockfish Sebastes schlegeli. Aquat Toxicol 2018; 200:127-135. [PMID: 29751159 DOI: 10.1016/j.aquatox.2018.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 06/08/2023]
Abstract
To demonstrate the effects of weathered crude oil residue on the immune systems of resident fish, we measured the changes in toxic chemical concentrations, apoptosis, phagocytosis, metabolism, immune-related gene expression, and cell cycle arrest in livers or kidneys for up to 96 h after the weathered Iranian heavy crude oil (WIHCO) exposure by oral gavage in juvenile rockfish Sebastes schlegeli. Parent polyaromatic hydrocarbons (PAHs) in livers increased up to 5590 ng/g after 6 h exposure and then declined rapidly within 24 h. Hepato-detoxification and immune-related gene expression were also significantly increased (P < 0.05) after 6 h exposure and then declined rapidly within 24 h. However, biliary PAH metabolites and EROD activity remained elevated throughout the test period. Flow cytometry analysis also indicated sustained apoptosis and cell cycle arrests with reduced phagocytic activity for 96 h. Taken together, these results demonstrate rapid declination of the parent PAHs, whereas PAH metabolites remained much longer in tissues with prolonged suppression of immunity in molecular and cellular level, suggesting that weathered crude oil residue is likely linked to the high incidence of immune dysfunction in residential rockfish in oil spill area.
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Affiliation(s)
- Eun-Hee Lee
- Oil & POPs Research Group, Korea Institute of Ocean Science & Technology, Geoje, 53201, Republic of Korea
| | - Moonkoo Kim
- Oil & POPs Research Group, Korea Institute of Ocean Science & Technology, Geoje, 53201, Republic of Korea; Department of Marine Environmental Science, Korea University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Young-Sun Moon
- Oil & POPs Research Group, Korea Institute of Ocean Science & Technology, Geoje, 53201, Republic of Korea
| | - Un Hyuk Yim
- Oil & POPs Research Group, Korea Institute of Ocean Science & Technology, Geoje, 53201, Republic of Korea; Department of Marine Environmental Science, Korea University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Sung Yong Ha
- Oil & POPs Research Group, Korea Institute of Ocean Science & Technology, Geoje, 53201, Republic of Korea
| | - Chang-Bum Jeong
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jae-Seong Lee
- Department of Biological Science, College of Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jee-Hyun Jung
- Oil & POPs Research Group, Korea Institute of Ocean Science & Technology, Geoje, 53201, Republic of Korea; Department of Marine Environmental Science, Korea University of Science and Technology, Daejeon, 34113, Republic of Korea.
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Huderson AC, Rekha Devi PV, Niaz MS, Adunyah SE, Ramesh A. Alteration of benzo(a)pyrene biotransformation by resveratrol in Apc Min/+ mouse model of colon carcinogenesis. Invest New Drugs 2018; 37:238-251. [PMID: 29931584 DOI: 10.1007/s10637-018-0622-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/11/2018] [Indexed: 12/30/2022]
Abstract
Epidemiological surveys have revealed that environmental and dietary factors contribute to most of the human cancers. Our earlier studies have shown that resveratrol (RVT), a phytochemical reduced the tumor number, size and incidence of dysplasias induced by benzo(a)pyrene (BaP), an environmental toxicant in the ApcMin/+ mouse model of colon cancer. In this study we investigated to ascertain whether the preventive effects of RVT on BaP-induced colon carcinogenesis is a result of altered BaP biotransformation by RVT. For the first group of mice, 100 μg BaP/kg bw was administered in peanut oil via oral gavage over a 60 day period. For the second group, 45 μg RVT/kg bw was co-administered with BaP. For the third group, RVT was administered for 1 week prior to BaP exposure. Blood, colon and liver were collected from control and BaP/RVT-treated mice at 60 days post-BaP & RVT exposure. We have assayed activities and expression (protein & mRNA) of drug metabolizing enzymes such as cytochrome P4501A1 (CYP1A1), CYP1B1, and glutathione-S-transferase (GST) in colon and liver samples from the treatment groups mentioned above. An increased expression of CYP1A1 in liver and colon and of CYP1B1 in liver of BaP-treated mice was seen, while RVT inhibited the extent of biotransformation mediated by these enzymes in the respective tissue samples. In the case of GST, an increased expression in colon of BaP alone-treated mice was noted when RVT was administered prior to BaP or simultaneously with BaP. However, there is no change in liver GST expression between BaP and RVT treatment groups. The concentrations of BaP aqueous (phase II) metabolites were found to be greater than the organic (phase I) metabolites, suggesting that RVT slows down the phase I metabolism (metabolic activation) of BaP, while enhancing phase II metabolism (detoxification). Additionally, the BaP-DNA adduct concentrations measured in colon and liver of BaP + RVT-treated mice were low relative to their BaP counterparts. Taken together, our findings strongly suggest that RVT alleviates BaP-induced colon carcinogenesis by impairing biotransformation pathways and DNA adduct formation, and therefore holds promise as a chemopreventive agent.
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Affiliation(s)
- Ashley C Huderson
- The American Society of Mechanical Engineers, 1828 L St. N.W, Washington, DC, 20036, USA
| | - P V Rekha Devi
- Toxicology and Pharmacology Unit, Biology Division, Indian Institute of Chemical Technology, Hyderabad, Telangana, 500007, India
| | - Mohammad S Niaz
- Department of Biochemistry, Cancer Biology, Neuroscience & Pharmacology, Meharry Medical College, 1005 D.B. Todd Blvd, Nashville, TN, 37208, USA
| | - Samuel E Adunyah
- Department of Biochemistry, Cancer Biology, Neuroscience & Pharmacology, Meharry Medical College, 1005 D.B. Todd Blvd, Nashville, TN, 37208, USA
| | - Aramandla Ramesh
- Department of Biochemistry, Cancer Biology, Neuroscience & Pharmacology, Meharry Medical College, 1005 D.B. Todd Blvd, Nashville, TN, 37208, USA.
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De Marchi L, Neto V, Pretti C, Figueira E, Chiellini F, Morelli A, Soares AMVM, Freitas R. Effects of multi-walled carbon nanotube materials on Ruditapes philippinarum under climate change: The case of salinity shifts. Aquat Toxicol 2018; 199:199-211. [PMID: 29655118 DOI: 10.1016/j.aquatox.2018.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/29/2018] [Accepted: 04/03/2018] [Indexed: 06/08/2023]
Abstract
The toxicity of carbon nanotubes (CNTs) is closely related to their physico-chemical characteristics as well as the physico-chemical parameters of the media where CNTs are dispersed. In a climate change scenario, changes in seawater salinity are becoming a topic of concern particularly in estuarine and coastal areas. Nevertheless, to our knowledge no information is available on how salinity shifts may alter the sensitivity (in terms of biochemical responses) of bivalves when exposed to different CNTs. For this reason, a laboratory experiment was performed exposing the Manila clam Ruditapes philippinarum, one of the most dominant bivalves of the estuarine and coastal lagoon environments, for 28 days to unfunctionalized multi-walled carbon nanotube MWCNTs (Nf-MWCNTs) and carboxylated MWCNTs (f-MWCNTs), maintained at control salinity (28) and low salinity 21. Concentration-dependent toxicity was demonstrated in individuals exposed to both MWCNT materials and under both salinities, generating alterations of energy reserves and metabolism, oxidative status and neurotoxicity compared to non-contaminated clams. Moreover, our results showed greater toxic impacts induced in clams exposed to f-MWCNTs compared to Nf-MWCNTs. In the present study it was also demonstrated how salinity shifts altered the toxicity of both MWCNT materials as well as the sensitivity of R. philippinarum exposed to these contaminates in terms of clam metabolism, oxidative status and neurotoxicity.
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Affiliation(s)
- Lucia De Marchi
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193, Aveiro, Portugal; Department of Mechanical Engineering & Center for Mechanical Technology and Automation (TEMA), University of Aveiro, 3810-193, Aveiro, Portugal
| | - Victor Neto
- Department of Mechanical Engineering & Center for Mechanical Technology and Automation (TEMA), University of Aveiro, 3810-193, Aveiro, Portugal
| | - Carlo Pretti
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado, Pisa, 56122, Italy
| | - Etelvina Figueira
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193, Aveiro, Portugal
| | - Federica Chiellini
- Department of Chemistry and Industrial Chemistry, University of Pisa, Udr INSTM Pisa, Pisa, 56126, Italy
| | - Andrea Morelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, Udr INSTM Pisa, Pisa, 56126, Italy
| | - Amadeu M V M Soares
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193, Aveiro, Portugal
| | - Rosa Freitas
- Department of Biology & Center for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193, Aveiro, Portugal.
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Ferain A, Bonnineau C, Neefs I, Das K, Larondelle Y, Rees JF, Debier C, Lemaire B. Transcriptional effects of phospholipid fatty acid profile on rainbow trout liver cells exposed to methylmercury. Aquat Toxicol 2018; 199:174-187. [PMID: 29649756 DOI: 10.1016/j.aquatox.2018.03.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/16/2018] [Accepted: 03/20/2018] [Indexed: 06/08/2023]
Abstract
Lipids, and their constitutive fatty acids, are key nutrients for fish health as they provide energy, maintain cell structure, are precursors of signalling molecules and act as nuclear receptor ligands. These specific roles may be of crucial importance in a context of exposure to pollutants. We recently showed that the fatty acid profile of rainbow trout liver cell phospholipids modulates sensitivity to an acute methylmercury challenge. In order to investigate mechanisms of effects, we herein tested whether specific polyunsaturated fatty acids (PUFAs) may protect cells from methylmercury through decreasing intracellular mercury accumulation and/or enhancing cellular defences (e.g. via modulation of gene expression patterns). We also investigated the inverse relationship and assessed the impact of methylmercury on cellular fatty acid metabolism. To do so, the fatty acid composition of rainbow trout liver cell phospholipids was first modified by incubating them in a medium enriched in a specific PUFA from either the n-3 family (alpha-linolenic acid, ALA; eicosapentaenoic acid, EPA) or the n-6 family (linoleic acid, LA; arachidonic acid, AA). Cells were then exposed to methylmercury (0.15 or 0.50 μM) for 24 h and sampled thereafter for assessing phospholipid fatty acid profile, intracellular total mercury burden, and expression pattern of genes involved in fatty acid metabolism, synthesis of PUFA-derived signalling molecules and stress response. We observed that cells incorporated the given PUFA and some biotransformation products in their phospholipids. Methylmercury had few impacts on this cellular phospholipid composition. None of the PUFA enrichments affected the cellular mercury burden, suggesting that the previously observed cytoprotection conferred by ALA and EPA was not linked to a global decrease in cellular accumulation of mercury. Fatty acid enrichments and methylmercury exposure both modulated gene expression patterns. Genes involved in the synthesis of PUFA-derived signalling molecules, in stress response and the orphan cytochrome P450 20A1 were identified as possible sites of interaction between fatty acids and methylmercury in rainbow trout liver cells.
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Affiliation(s)
- Aline Ferain
- Institute of Life Sciences, Université catholique de Louvain, Place Croix du Sud 2/L7.05.08, B-1348 Louvain-la-Neuve, Belgium.
| | - Chloé Bonnineau
- Institute of Life Sciences, Université catholique de Louvain, Place Croix du Sud 2/L7.05.08, B-1348 Louvain-la-Neuve, Belgium; Irstea, UR RiverLy, Centre de Lyon-Villeurbanne, 5, 69625 Villeurbanne, France
| | - Ineke Neefs
- Institute of Life Sciences, Université catholique de Louvain, Place Croix du Sud 2/L7.05.08, B-1348 Louvain-la-Neuve, Belgium
| | - Krishna Das
- Freshwater and Oceanic sciences Unit of reSearch (FOCUS), Laboratory of Oceanology, Université de Liège, Allée du 6 août B6C, B-4000 Liège, Belgium
| | - Yvan Larondelle
- Institute of Life Sciences, Université catholique de Louvain, Place Croix du Sud 2/L7.05.08, B-1348 Louvain-la-Neuve, Belgium
| | - Jean-François Rees
- Institute of Life Sciences, Université catholique de Louvain, Place Croix du Sud 2/L7.05.08, B-1348 Louvain-la-Neuve, Belgium
| | - Cathy Debier
- Institute of Life Sciences, Université catholique de Louvain, Place Croix du Sud 2/L7.05.08, B-1348 Louvain-la-Neuve, Belgium.
| | - Benjamin Lemaire
- Institute of Life Sciences, Université catholique de Louvain, Place Croix du Sud 2/L7.05.08, B-1348 Louvain-la-Neuve, Belgium
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Chen CC, Kuo DTF. Bioconcentration model for non-ionic, polar, and ionizable organic compounds in amphipod. Environ Toxicol Chem 2018; 37:1378-1386. [PMID: 29315781 DOI: 10.1002/etc.4081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/20/2017] [Accepted: 01/07/2018] [Indexed: 06/07/2023]
Abstract
The present study presents a bioconcentration model for non-ionic, polar, and ionizable organic compounds in amphipod based on first-order kinetics. Uptake rate constant k1 is modeled as logk1=10.81logKOW + 0.15 (root mean square error [RMSE] = 0.52). Biotransformation rate constant kM is estimated using an existing polyparameter linear free energy relationship model. Respiratory elimination k2 is calculated as modeled k1 over theoretical biota-water partition coefficient Kbiow considering the contributions of lipid, protein, carbohydrate, and water. With negligible contributions of growth and egestion over a typical amphipod bioconcentration experiment, the bioconcentration factor (BCF) is modeled as k1 /(kM + k2 ) (RMSE = 0.68). The proposed model performs well for non-ionic organic compounds (log KOW range = 3.3-7.62) within 1 log-unit error margin. Approximately 12% of the BCFs are underpredicted for polar and ionizable compounds. However, >50% of the estimated k2 values are found to exceed the total depuration rate constants. Analyses suggest that these excessive k2 values and underpredicted BCFs reflect underestimation in Kbiow , which may be improved by incorporating exoskeleton as a relevant partitioning component and refining the membrane-water partitioning model. The immediate needs to build up high-quality experimental kM values, explore the sorptive role of exoskeleton, and investigate the prevalence of k2 overestimation in other bioconcentration models are also identified. The resulting BCF model can support, within its limitations, the ecotoxicological and risk assessment of emerging polar and ionizable organic contaminants in aquatic environments and advance the science of invertebrate bioaccumulation. Environ Toxicol Chem 2018;37:1378-1386. © 2018 SETAC.
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Affiliation(s)
- Ciara Chun Chen
- Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, China
| | - Dave Ta Fu Kuo
- Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, China
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Almeida Â, Calisto V, Esteves VI, Schneider RJ, Soares AMVM, Figueira E, Freitas R. Effects of single and combined exposure of pharmaceutical drugs (carbamazepine and cetirizine) and a metal (cadmium) on the biochemical responses of R. philippinarum. Aquat Toxicol 2018; 198:10-19. [PMID: 29494826 DOI: 10.1016/j.aquatox.2018.02.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/10/2018] [Accepted: 02/14/2018] [Indexed: 05/20/2023]
Abstract
In the aquatic environment, organisms are exposed to complex mixtures of contaminants which may alter the toxicity profile of each compound, compared to its toxicity alone. Pharmaceutical drugs (e.g. carbamazepine (CBZ) and cetirizine (CTZ)) and metals (e.g. cadmium (Cd)) are among those contaminants that co-occur in the environment. However, most studies concerning their toxicity towards aquatic species are based on single exposure experiments. Thus, the present study aimed to evaluate single and combined effects of Cd and CBZ or CTZ (single conditions: Cd, CTZ, CBZ; combined conditions: CTZ + Cd, CBZ + Cd) on biomarkers related to oxidative stress and energy metabolism in the edible clam Ruditapes philippinarum, by exposing the organisms for 28 days to environmentally relevant concentrations of these contaminants. The biomarkers studied were: i) the electron transport system activity, protein and glycogen contents (indicators of organisms' metabolic status and energy reserves); ii) lipid peroxidation and the ratio between reduced and oxidized glutathione (indicators of oxidative stress); iii) superoxide dismutase and catalase activities (enzymes indicators of antioxidant defence) and iv) activity of glutathione S-transferases (family of enzymes indicators of biotransformation capacity). Results obtained showed that the uptake of Cd and CBZ was not affected by the combined presence of the contaminants. However, for CTZ, the uptake was higher in the presence than in the absence of Cd. Concerning toxicity data, in general, the combined exposures (CTZ + Cd, CBZ + Cd) had lower biological effects than the contaminants alone. Nevertheless, our data showed that despite the low concentrations tested, they were enough to exert biological effects that differed between single and combined treatments, evidencing the need to conduct more co-exposure studies to increase the environmental relevance of the gathered data.
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Affiliation(s)
- Ângela Almeida
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Vânia Calisto
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Valdemar I Esteves
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rudolf J Schneider
- BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter-Str. 11, D-12489 Berlin, Germany
| | | | - Etelvina Figueira
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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Mosley JD, Ekman DR, Cavallin JE, Villeneuve DL, Ankley GT, Collette TW. High-resolution mass spectrometry of skin mucus for monitoring physiological impacts and contaminant biotransformation products in fathead minnows exposed to wastewater effluent. Environ Toxicol Chem 2018; 37:788-796. [PMID: 29023973 PMCID: PMC6061956 DOI: 10.1002/etc.4003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 06/17/2017] [Accepted: 10/09/2017] [Indexed: 05/08/2023]
Abstract
High-resolution mass spectrometry is advantageous for monitoring physiological impacts and contaminant biotransformation products in fish exposed to complex wastewater effluent. We evaluated this technique using skin mucus from male and female fathead minnows (Pimephales promelas) exposed to control water or treated wastewater effluent at 5, 20, and 100% levels for 21 d, using an on-site, flow-through system providing real-time exposure. Both sex-specific and non-sex-specific responses were observed in the mucus metabolome, the latter suggesting the induction of general compensatory pathways for xenobiotic exposures. Altogether, 85 statistically significant treatment-dependent metabolite changes were observed out of the 310 total endogenous metabolites that were detected (156 of the 310 were annotated). Partial least squares-regression models revealed strong covariances between the mucus metabolomes and up-regulated hepatic messenger ribonucleic acid (mRNA) transcripts reported previously for these same fish. These regression models suggest that mucus metabolomic changes reflected, in part, processes by which the fish biotransformed xenobiotics in the effluent. In keeping with this observation, we detected a phase II transformation product of bisphenol A in the skin mucus of male fish. Collectively, these findings demonstrate the utility of mucus as a minimally invasive matrix for simultaneously assessing exposures and effects of environmentally relevant mixtures of contaminants. Environ Toxicol Chem 2018;37:788-796. Published 2017 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
- J. D. Mosley
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605, United States
- Please contact corresponding author: J. Mosley at or D. Ekman at
| | - D. R. Ekman
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605, United States
- Please contact corresponding author: J. Mosley at or D. Ekman at
| | - J. E. Cavallin
- ORISE Research Participation Program, U.S. Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, 6201 Congdon Blvd., Duluth, MN 55804, United States
- University of Minnesota-Duluth, Integrated Biosciences Graduate Program, 1035 University Drive, Duluth, MN 55812, United States
| | - D. L. Villeneuve
- National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, U.S. Environmental Protection Agency, 6201 Congdon Boulevard, Duluth, Minnesota 55804, United States
| | - G. T. Ankley
- National Health and Environmental Effects Research Laboratory, Mid-Continent Ecology Division, U.S. Environmental Protection Agency, 6201 Congdon Boulevard, Duluth, Minnesota 55804, United States
| | - T. W. Collette
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, 960 College Station Road, Athens, Georgia 30605, United States
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Abstract
BACKGROUND AND OBJECTIVE Ginkgo leaf tablet (GLT) is an effective traditional Chinese multi-herbal formula, which is often combined with amlodipine for treating senile hypertension in clinic. The aim of this study was to study the pharmacokinetics of amlodipine after oral administration of amlodipine and GLT and to investigate the potential for pharmacokinetic herb-drug interactions between GLT and amlodipine in rats. METHODS A liquid chromatography-tandem mass spectrometry (LC-MS/MS) analytical method was developed for quantification of amlodipine in rat plasma. The accuracy, precision, linearity, selectivity and recovery were all within an acceptable range. Male Sprague-Dawley rats were randomly assigned to two groups: amlodipine group and amlodipine + GLT group. Plasma concentrations of amlodipine were determined at the designated time points after oral administration by using the developed LC-MS/MS method, and the main pharmacokinetic parameters were calculated and compared. As ginkgolides A, ginkgolides B, bilobalide, quercetin and kaempferol were the main components of GLT, the effects of these ingredients in GLT on metabolism of amlodipine were further investigated in rat liver microsomes. RESULTS The pharmacokinetic parameters, maximum plasma concentration (C max), time to reach C max (T max), area under the concentration-time curve (AUC), area under the first moment plasma concentration-time curve (AUMC) and elimination half-life (t 1/2), of amlodipine were significantly increased in amlodipine + GLT group, which suggested that GLT may influence the pharmacokinetic behavior after oral co-administration with amlodipine. Amlodipine is metabolized by cytochrome P450 (CYP) 3A4, so it was speculated that GLT may change the pharmacokinetic parameters of amlodipine through modulating the metabolism of CYP3A4 enzymes. When ginkgolides B, bilobalide, or quercetin and amlodipine were co-incubated in the rat liver microsomes, the metabolic rate of amlodipine was prolonged to 533.1, 216.1 and 407.6 min, respectively, from 73.7 min. CONCLUSIONS These results suggested that these components in GLT inhibit the metabolism of amlodipine. So it can be speculated that the herb-drug interactions between GLT and amlodipine resulted from inhibiting the metabolism of amlodipine by GLT when they were co-administered.
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Affiliation(s)
- Rong Wang
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Rd, Shanghai, 200011, China
| | - Hai Zhang
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, School of Pharmacy, Second Military Medical University, Shanghai, 200438, China
| | - Sen Sun
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, School of Pharmacy, Second Military Medical University, Shanghai, 200438, China
| | - Yuanyuan Wang
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Rd, Shanghai, 200011, China
| | - Yifeng Chai
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Yongfang Yuan
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Rd, Shanghai, 200011, China.
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Mennillo E, Arukwe A, Monni G, Meucci V, Intorre L, Pretti C. Ecotoxicological properties of ketoprofen and the S(+)-enantiomer (dexketoprofen): Bioassays in freshwater model species and biomarkers in fish PLHC-1 cell line. Environ Toxicol Chem 2018; 37:201-212. [PMID: 28796322 DOI: 10.1002/etc.3943] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 04/21/2017] [Accepted: 08/08/2017] [Indexed: 06/07/2023]
Abstract
The increased use of nonsteroidal anti-inflammatory drugs (NSAIDs) has resulted in their ubiquitous presence in the environment. The toxicological properties of these 2 widely prescribed NSAIDs, namely racemic ketoprofen and its enantiomer S(+)-ketoprofen (dexketoprofen), were evaluated, firstly, by acute and chronic toxicity tests using 3 representative model organisms (Vibrio fischeri, Pseudokirchneriella subcapitata, and Ceriodaphnia dubia) and, secondly, by evaluating the responses of biotransformation systems and multidrug resistance-associated proteins (MRP1/MRP2) using the Poeciliopsis lucida hepatocellular carcinoma 1 (PLHC-1) fish hepatic cell line. Toxicity data from both acute and chronic dexketoprofen exposure indicated higher sensitivity through inhibition of bioluminescence and algal growth and through increased mortality/immobilization compared to racemic ketoprofen exposure. The growth inhibition test showed that racemic ketoprofen and dexketoprofen exhibited different effect concentration values (240.2 and 65.6 μg/L, respectively). Furthermore, racemic ketoprofen and dexketoprofen did not exert cytotoxic effects in PLHC-1 cells and produced compound-, time-, and concentration-specific differential effects on cytochrome P450 1A (CYP1A) and glutathione S-transferase levels. For CYP1A, the effects of racemic ketoprofen and dexketoprofen differed at the transcriptional and catalytic levels. Exposure to racemic ketoprofen and dexketoprofen modulated MRP1 and MRP2 mRNA levels, and these effects were also dependent on compound, exposure time, and concentration of the individual drug. The present study revealed for the first time the interactions between these NSAIDs and key detoxification systems and different sensitivity to the racemic mixture compared to its enantiomer. Environ Toxicol Chem 2018;37:201-212. © 2017 SETAC.
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Affiliation(s)
- Elvira Mennillo
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado, Italy
| | - Augustine Arukwe
- Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Gianfranca Monni
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado, Italy
| | - Valentina Meucci
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado, Italy
| | - Luigi Intorre
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado, Italy
| | - Carlo Pretti
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado, Italy
- Interuniversity Center of Marine Biology (CIBM) "G. Bacci," Livorno, Italy
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Wang X, Zhang X, Liu F, Wang M, Qin S. The effects of triptolide on the pharmacokinetics of sorafenib in rats and its potential mechanism. Pharm Biol 2017; 55:1863-1867. [PMID: 28614959 PMCID: PMC7011964 DOI: 10.1080/13880209.2017.1340963] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/21/2017] [Accepted: 06/07/2017] [Indexed: 05/20/2023]
Abstract
CONTEXT Combining sorafenib with triptolide could inhibit tumour growth with greater efficacy than single-agent treatment. However, their herb-drug interaction remains unknown. OBJECTIVE This study investigates the herb-drug interaction between triptolide and sorafenib. MATERIALS AND METHODS The effects of triptolide (10 mg/kg) on the pharmacokinetics of different doses of sorafenib (20, 50 and 100 mg/kg) in rats, and blood samples were collected within 48 h and evaluated using LC-MS/MS. The effects of triptolide on the absorption and metabolism of sorafenib were also investigated using Caco-2 cell monolayer model and rat liver microsome incubation systems. RESULTS The results showed that the Cmax (low dose: 72.38 ± 8.76 versus 49.15 ± 5.46 ng/mL; medium dose: 178.65 ± 21.05 versus 109.31 ± 14.17 ng/mL; high dose: 332.81 ± 29.38 versus 230.86 ± 9.68 ng/mL) of sorafenib at different doses increased significantly with the pretreatment of triptolide, and while the oral clearance rate of sorafenib decreased. The t1/2 of sorafenib increased significant (p < 0.05) from 9.02 ± 1.16 to 12.17 ± 2.95 h at low dose with the pretreatment of triptolide. Triptolide has little effect on the absorption of sorafenib in Caco-2 cell transwell model. However, triptolide could significantly decrease the intrinsic clearance rate of sorafenib from 51.7 ± 6.37 to 32.4 ± 4.43 μL/min/mg protein in rat liver microsomes. DISCUSSION AND CONCLUSIONS These results indicated that triptolide could change the pharmacokinetic profiles of sorafenib in rats; these effects might be exerted via decreasing the intrinsic clearance rate of sorafenib in rat liver.
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Affiliation(s)
- Xianming Wang
- Department of General Surgery, Qianfoshan Hospital affiliated to Shandong University, Shandong, China
| | - Xin Zhang
- Department of General Surgery, Qianfoshan Hospital affiliated to Shandong University, Shandong, China
| | - Fei Liu
- Department of General Surgery, Qianfoshan Hospital affiliated to Shandong University, Shandong, China
| | - Minghai Wang
- Department of General Surgery, Qianfoshan Hospital affiliated to Shandong University, Shandong, China
- Minghai WangDepartment of General Surgery, Qianfoshan Hospital affiliated to Shandong University, Shandong 250014, China
| | - Shiyong Qin
- Department of General Surgery, Qianfoshan Hospital affiliated to Shandong University, Shandong, China
- CONTACT Shiyong Qin
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van den Hurk P, Gerzel LE, Calomiris P, Haney DC. Phylogenetic signals in detoxification pathways in Cyprinid and Centrarchid species in relation to sensitivity to environmental pollutants. Aquat Toxicol 2017; 188:20-25. [PMID: 28441608 DOI: 10.1016/j.aquatox.2017.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 04/07/2017] [Accepted: 04/09/2017] [Indexed: 06/07/2023]
Abstract
Observations in a previous study on biomarker responses in fish collected from urban creeks in Greenville, SC, indicated that there might be considerable differences in the expression of biotransformation enzymes in chub and sunfish species. To further investigate these species differences a dosing experiment was performed in which bluehead and creek chub (Nocomis leptocephalus and Semotilus atromaculatus), and redbreast sunfish, pumpkinseed, and bluegill (Lepomis auritus, L. gibbosus, and L. macrochirus) were injected with benzo[a]pyrene (BaP) as a model compound for common pollutants in urban creeks. Fish were injected with BaP doses of 0, 25 and 50mg/kg, and after 3days BaP metabolites in bile, and enzymatic activities of cytochrome P450-1A (CYP1A), UDP-glucuronosyltransferase (UGT) and glutathione S-transferase (GST) were measured. CYP1A activity was significantly increased after BaP dosing in both species groups, but chubs had significantly lower levels than were observed in the dosed sunfish. The UGT activity in unexposed animals was comparable in both species groups, and significantly increased in both groups as a result of BaP dosage. Finally, GST activity was significantly higher in chubs, but did not change in either species group as a result of BaP exposure. There were no significant differences between species within each species group, and the results confirmed that unexposed chubs have much lower CYP1A activity, but a much higher GST activity than unexposed sunfish. The metabolized BaP was excreted in both species groups, but at the time of sampling there were no differences in the amount of BaP metabolites in the bile of dosed animals. The differences in baseline enzyme activity and induction capacity between both species groups are an example of phylogenetically determined differences between fish families, and may explain why chubs are in general more sensitive to exposure to environmental pollutants than sunfish. This conclusion was corroborated by the observation that the highest BaP dose of 50mg/kg was close to the apparent LC50 for chub, while no mortality was observed in the sunfish at this dose.
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Affiliation(s)
- Peter van den Hurk
- Department of Biological Sciences, Clemson University, Clemson, SC, USA.
| | | | | | - Dennis C Haney
- Biology Department, Furman University, Greenville, SC, USA
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Cheng L, He Y, Tian Y, Liu B, Zhang Y, Zhou Q, Wu Z. Comparative biotoxicity of N-Phenyl-1-naphthylamine and N-Phenyl-2-naphthylamine on cyanobacteria Microcystis aeruginosa. Chemosphere 2017; 176:183-191. [PMID: 28260658 DOI: 10.1016/j.chemosphere.2017.02.110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 02/04/2017] [Accepted: 02/21/2017] [Indexed: 06/06/2023]
Abstract
N-Phenyl-1-naphthylamine (P1NA) and N-Phenyl-2-naphthylamine (P2NA) are both widely used as antioxidant and plant secondary metabolites. In this study, growth, esterase, photosynthetic activity and cell membrane integrity were used as biomarkers to compare biotoxicity of P1NA and P2NA on Microcystis aeruginosa. According to the results, a dose-response relationship was observed only between P1NA concentrations and growth inhibition. The EC50 (48 h) of P1NA calculated from growth inhibition was 16.62 μM, while that of P2NA was not detected. When the esterase and photosynthetic activity were applied to evaluate the biotoxicity, it was found that a concentration of 20 μM P1NA, P2NA caused reduction of esterase activity and Fv/Fm of M. aeruginosa to 22.2 and 3.3%, 97.5 and 92.1%, respectively, after 48 h exposure. The percentage of membrane-damaged cells was increased as P1NA exposure concentration increased, but that was not detected when exposure to P2NA. The difference substituted position in the molecular structure of P1NA and P2NA leads to different toxicological properties and only P1NA was found highly toxic to M. aeruginosa. The toxicity is due to that only P1NA can be biotransformed to 1,4-naphthoquinone, which could induce overproduction of intracellular ROS as well as result in oxidative damage and growth inhibition of test organism.
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Affiliation(s)
- Long Cheng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan He
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yun Tian
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Biyun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Yongyuan Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Qiaohong Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Zhenbin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Casatta N, Stefani F, Viganò L. Hepatic gene expression profiles of a non-model cyprinid (Barbus plebejus) chronically exposed to river sediments. Comp Biochem Physiol C Toxicol Pharmacol 2017; 196:27-35. [PMID: 28286098 DOI: 10.1016/j.cbpc.2017.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 01/20/2023]
Abstract
In this study, we characterized the gene expression responses of the Padanian barbel (Barbus plebejus), a native benthivorous cyprinid with a very compromised presence within the fish community of the River Po. Barbel juveniles were exposed in the laboratory to two river sediments reflecting an upstream/downstream gradient of increasing contamination and collected from one of the most anthropized tributaries of the River Po. After 7months of exposure, hepatic transcriptional changes that were diagnostic of sediment exposure were assessed. We investigated a set of 24 genes involved in xenobiotic biotransformation (cyp1a, gstα, ugt), antioxidant defense (gpx, sod, cat, hsp70), trace metal exposure (mt-I, mt-II), DNA repair (xpa, xpc), apoptosis (bax, casp3), growth (igf2), and steroid (erα, erβ1, erβ2, ar, vtg) and thyroid (dio1, dio2, trα, trβ, nis) hormone signaling pathways. In a consistent overall picture, the results showed that long-term sediment exposure mainly increased the levels of mRNAs encoding proteins involved in xenobiotic metabolism, oxidative stress defense, repair of DNA damage and activation of the apoptotic process. Transcript up-regulation of three receptor genes (erβ2, ar, trβ), likely representing compensatory responses to antagonistic/toxic effects, was also observed, confirming the exposure to disruptors of the reproductive and thyroidal axes. In contrast to expectations, a few genes showed no response (e.g., casp3) or even downregulation (vtg), further suggesting that the timing of exposure/assessment, potential compensatory effects or post-transcriptional modifications interact to modify the gene expression profiles, particularly during exposure to mixtures of contaminants.
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Affiliation(s)
- Nadia Casatta
- Water Research Institute, National Research Council of Italy, Via del Mulino 19, 20861 Brugherio, (MB), Italy.
| | - Fabrizio Stefani
- Water Research Institute, National Research Council of Italy, Via del Mulino 19, 20861 Brugherio, (MB), Italy
| | - Luigi Viganò
- Water Research Institute, National Research Council of Italy, Via del Mulino 19, 20861 Brugherio, (MB), Italy
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Rankin GO, Tyree C, Pope D, Tate J, Racine C, Anestis DK, Brown KC, Dial M, Valentovic MA. Role of Free Radicals and Biotransformation in Trichloronitrobenzene-Induced Nephrotoxicity In Vitro. Int J Mol Sci 2017; 18:ijms18061165. [PMID: 28561793 PMCID: PMC5485989 DOI: 10.3390/ijms18061165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/12/2017] [Accepted: 05/24/2017] [Indexed: 11/25/2022] Open
Abstract
This study determined the comparative nephrotoxic potential of four trichloronitrobenzenes (TCNBs) (2,3,4-; 2,4,5-; 2,4,6-; and 3,4,5-TCNB) and explored the effects of antioxidants and biotransformation inhibitors on TCNB-induced cytotoxicity in isolated renal cortical cells (IRCC) from male Fischer 344 rats. IRCC were incubated with a TCNB up to 1.0 mM for 15–120 min. Pretreatment with an antioxidant or cytochrome P450 (CYP), flavin monooxygenase (FMO), or peroxidase inhibitor was used in some experiments. Among the four TCNBs, the order of decreasing nephrotoxic potential was approximately 3,4,5- > 2,4,6- > 2,3,4- > 2,4,5-TCNB. The four TCNBs exhibited a similar profile of attenuation of cytotoxicity in response to antioxidant pretreatments. 2,3,4- and 3,4,5-TCNB cytotoxicity was attenuated by most of the biotransformation inhibitors tested, 2,4,5-TCNB cytotoxicity was only inhibited by isoniazid (CYP 2E1 inhibitor), and 2,4,6-TCNB-induced cytotoxicity was inhibited by one CYP inhibitor, one FMO inhibitor, and one peroxidase inhibitor. All of the CYP specific inhibitors tested offered some attenuation of 3,4,5-TCNB cytotoxicity. These results indicate that 3,4,5-TCNB is the most potent nephrotoxicant, free radicals play a role in the TCNB cytotoxicity, and the role of biotransformation in TCNB nephrotoxicity in vitro is variable and dependent on the position of the chloro groups.
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Affiliation(s)
- Gary O Rankin
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Connor Tyree
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Deborah Pope
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Jordan Tate
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Christopher Racine
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Dianne K Anestis
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Kathleen C Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Mason Dial
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Monica A Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
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Liang SH, Hsu DW, Lin CY, Kao CM, Huang DJ, Chien CC, Chen SC, Tsai IJ, Chen CC. Enhancement of microbial 2,4,6-trinitrotoluene transformation with increased toxicity by exogenous nutrient amendment. Ecotoxicol Environ Saf 2017; 138:39-46. [PMID: 28006730 DOI: 10.1016/j.ecoenv.2016.12.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 11/18/2016] [Accepted: 12/08/2016] [Indexed: 06/06/2023]
Abstract
In this study, the bacterial strain Citrobacter youngae strain E4 was isolated from 2,4,6-trinitrotoluene (TNT)-contaminated soil and used to assess the capacity of TNT transformation with/without exogenous nutrient amendments. C. youngae E4 poorly degraded TNT without an exogenous amino nitrogen source, whereas the addition of an amino nitrogen source considerably increased the efficacy of TNT transformation in a dose-dependent manner. The enhanced TNT transformation of C. youngae E4 was mediated by increased cell growth and up-regulation of TNT nitroreductases, including NemA, NfsA and NfsB. This result indicates that the increase in TNT transformation by C. youngae E4 via nitrogen nutrient stimulation is a cometabolism process. Consistently, TNT transformation was effectively enhanced when C. youngae E4 was subjected to a TNT-contaminated soil slurry in the presence of an exogenous amino nitrogen amendment. Thus, effective enhancement of TNT transformation via the coordinated inoculation of the nutrient-responsive C. youngae E4 and an exogenous nitrogen amendment might be applicable for the remediation of TNT-contaminated soil. Although the TNT transformation was significantly enhanced by C. youngae E4 in concert with biostimulation, the 96-h LC50 value of the TNT transformation product mixture on the aquatic invertebrate Tigriopus japonicas was higher than the LC50 value of TNT alone. Our results suggest that exogenous nutrient amendment can enhance microbial TNT transformation; however, additional detoxification processes may be needed due to the increased toxicity after reduced TNT transformation.
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Affiliation(s)
- Shih-Hsiung Liang
- Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan
| | - Duen-Wei Hsu
- Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan
| | - Chia-Ying Lin
- Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan
| | - Chih-Ming Kao
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Da-Ji Huang
- Department of Environmental Resources Management, Chia Nan University of Pharmacy & Science, Tainan, Taiwan
| | - Chih-Ching Chien
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taiwan
| | - Ssu-Ching Chen
- Department of Life Sciences, National Central University, Taoyuan, Taiwan
| | | | - Chien-Cheng Chen
- Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan.
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Rodriguez-Hernandez MC, García De la-Cruz RF, Leyva E, Navarro-Tovar G. Typha latifolia as potential phytoremediator of 2,4-dichlorophenol: Analysis of tolerance, uptake and possible transformation processes. Chemosphere 2017; 173:190-198. [PMID: 28110008 DOI: 10.1016/j.chemosphere.2016.12.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/17/2016] [Accepted: 12/09/2016] [Indexed: 06/06/2023]
Abstract
2,4-Dichlorophenol (2,4-DCP) is considered a priority pollutant due to its high toxicity. Therefore, it is urgent to develop technologies for the disposal of this pollutant. Various remediation processes have been proposed for the elimination of 2,4-DCP in contaminated water, however, most of them involve high costs of operation and maintenance. This study aimed to determine the capacity of remediation of 2,4-DCP in water by Typha latifolia L. wild plants. For that, the tolerance, removal, accumulation and biotransformation of 2,4-DCP by T. latifolia were investigated. The plants were exposed to 2,4-DCP solutions with a concentration range from 1.5 to 300 mgL-1 for 10 days. They exhibited a reduction in chlorophyll levels and growth rate when 2,4-DCP solutions were ≥30 mgL-1 and ≥50 mgL-1, respectively. The removal of contaminant was dose-depended, being 99.7% at 1.5-3 mgL-1, 59-70% at 10-70 mgL-1 and 35-42% at 100-300 mgL-1 of 2,4-DCP in the solution. Studies indicated that 2,4-DCP was mainly accumulated in root tissue rather than in shoot tissue. Acid hydrolysis of biomass extracts suggests 2,4-DCP bioconjugates formation in root tissue as a response mechanism. Additionally, an increment in glutathione S-transferase (GST) activity could indicate a 2,4-DCP conjugation with glutathione as a detoxification mechanism of T. latifolia.
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Affiliation(s)
- M C Rodriguez-Hernandez
- Plant Biochemistry Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico
| | - R F García De la-Cruz
- Plant Biochemistry Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico.
| | - E Leyva
- Organic Synthesis Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico
| | - G Navarro-Tovar
- Recombinant Biopharmaceuticals Laboratory, Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, Av. Dr. Manuel Nava 6 Zona Universitaria, 78210, San Luis Potosí, Mexico
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Fraga BM, Díaz CE, Amador LJ, Reina M, López-Rodriguez M, González-Coloma A. Biotransformation of an africanane sesquiterpene by the fungus Mucor plumbeus. Phytochemistry 2017; 135:73-79. [PMID: 28034456 DOI: 10.1016/j.phytochem.2016.12.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/13/2016] [Accepted: 12/16/2016] [Indexed: 06/06/2023]
Abstract
Biotransformation of 8β-hydroxy-african-4(5)-en-3-one angelate by the fungus Mucor plumbeus afforded as main products 6α,8β-dihydroxy-african-4(5)-en-3-one 8β-angelate and 1α,8β-dihydroxy-african-4(5)-en-3-one 8β-angelate, which had been obtained, together with the substrate, from transformed root cultures of Bethencourtia hermosae. This fact shows that the enzyme system involved in these hydroxylations in both organisms, the fungus and the plant, acts with the same regio- and stereospecificity. In addition another twelve derivatives were isolated in the incubation of the substrate, which were identified as the (2'R,3'R)- and (2'S,3'S)-epoxy derivatives of the substrate and of the 6α- and 1α-hydroxy alcohols, the 8β-(2'R,3'R)- and 8β-(2'S,3'S)-epoxyangelate of 8β,15-dihydroxy-african-4(5)-en-3-one, the hydrolysis product of the substrate, and three isomers of 8β-hydroxy-african-4(5)-en-3-one 2ξ,3ξ-dihydroxy-2-methylbutanoate. The insect antifeedant effects of the pure compounds were tested against chewing and sucking insect species along with their selective cytotoxicity against insect (Sf9) and mammalian (CHO) cell lines.
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Affiliation(s)
- Braulio M Fraga
- Instituto de Productos Naturales and Agrobiología, CSIC, Avda. Astrof. F. Sánchez, 3, 38206, La Laguna, Tenerife, Canary Islands, Spain.
| | - Carmen E Díaz
- Instituto de Productos Naturales and Agrobiología, CSIC, Avda. Astrof. F. Sánchez, 3, 38206, La Laguna, Tenerife, Canary Islands, Spain.
| | - Leonardo J Amador
- Instituto de Productos Naturales and Agrobiología, CSIC, Avda. Astrof. F. Sánchez, 3, 38206, La Laguna, Tenerife, Canary Islands, Spain
| | - Matías Reina
- Instituto de Productos Naturales and Agrobiología, CSIC, Avda. Astrof. F. Sánchez, 3, 38206, La Laguna, Tenerife, Canary Islands, Spain
| | - Matías López-Rodriguez
- Instituto Universitario de Bioorgánica "Antonio González", Universidad de La Laguna, Tenerife, Spain
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De Marchi L, Neto V, Pretti C, Figueira E, Brambilla L, Rodriguez-Douton MJ, Rossella F, Tommasini M, Furtado C, Soares AMVM, Freitas R. Physiological and biochemical impacts of graphene oxide in polychaetes: The case of Diopatra neapolitana. Comp Biochem Physiol C Toxicol Pharmacol 2017; 193:50-60. [PMID: 28111252 DOI: 10.1016/j.cbpc.2017.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/06/2017] [Accepted: 01/17/2017] [Indexed: 12/23/2022]
Abstract
Graphene oxide (GO) is an important carbon nanomaterial (NM) that has been used, but limited literature is available regarding the impacts induced in aquatic organisms by this pollutant and, in particular in invertebrate species. The polychaete Diopatra neapolitana has frequently been used to evaluate the effects of environmental disturbances in estuarine systems due to its ecological and socio-economic importance but to our knowledge no information is available on D. neapolitana physiological and biochemical alterations due to GO exposure. Thus, the present study aimed to assess the toxic effects of different concentrations of GO (0.01; 0.10 and 1.00mg/L) in D. neapolitana physiological (regenerative capacity) and biochemical (energy reserves, metabolic activity and oxidative stress related biomarkers) performance, after 28days of exposure. The results obtained revealed that the exposure to GO induced negative effects on the regenerative capacity of D. neapolitana, with organisms exposed to higher concentrations regenerating less segments and taking longer periods to completely regenerate. GO also seemed to alter energy-related responses, especially glycogen content, with higher values in polychaetes exposed to GO which may result from a decreased metabolism (measured by electron transport system activity), when exposed to GO. Furthermore, under GO contamination D. neapolitana presented cellular damage, despite higher activities of antioxidant and biotransformation enzymes in individuals exposed to GO.
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Affiliation(s)
- Lucia De Marchi
- Departamento de Biologia & CESAM, University of Aveiro, 3810-193, Portugal; Center for Mechanical Technology and Automation, University of Aveiro, 3810-193, Portugal
| | - Victor Neto
- Center for Mechanical Technology and Automation, University of Aveiro, 3810-193, Portugal
| | - Carlo Pretti
- Department of Veterinary Sciences, University of Pisa, San Piero a Grado (PI), 56122, Italy
| | - Etelvina Figueira
- Departamento de Biologia & CESAM, University of Aveiro, 3810-193, Portugal
| | - Luigi Brambilla
- Department of Chemistry, Materials, Chemical Engineering "G. Natta", Politecnico di Milano, 20133 Milano, Italy
| | | | - Francesco Rossella
- NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, 57127 Pisa, Italy
| | - Matteo Tommasini
- Department of Chemistry, Materials, Chemical Engineering "G. Natta", Politecnico di Milano, 20133 Milano, Italy
| | - Clascídia Furtado
- Centro de Desenvolvimento da Tecnologia Nuclear, CDTN, Minas Gerais, MG, Brazil
| | | | - Rosa Freitas
- Departamento de Biologia & CESAM, University of Aveiro, 3810-193, Portugal.
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Verbueken E, Alsop D, Saad MA, Pype C, Van Peer EM, Casteleyn CR, Van Ginneken CJ, Wilson J, Van Cruchten SJ. In Vitro Biotransformation of Two Human CYP3A Probe Substrates and Their Inhibition during Early Zebrafish Development. Int J Mol Sci 2017; 18:ijms18010217. [PMID: 28117738 PMCID: PMC5297846 DOI: 10.3390/ijms18010217] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/11/2017] [Accepted: 01/17/2017] [Indexed: 12/18/2022] Open
Abstract
At present, the zebrafish embryo is increasingly used as an alternative animal model to screen for developmental toxicity after exposure to xenobiotics. Since zebrafish embryos depend on their own drug-metabolizing capacity, knowledge of their intrinsic biotransformation is pivotal in order to correctly interpret the outcome of teratogenicity assays. Therefore, the aim of this in vitro study was to assess the activity of cytochrome P450 (CYP)—a group of drug-metabolizing enzymes—in microsomes from whole zebrafish embryos (ZEM) of 5, 24, 48, 72, 96 and 120 h post-fertilization (hpf) by means of a mammalian CYP substrate, i.e., benzyloxy-methyl-resorufin (BOMR). The same CYP activity assays were performed in adult zebrafish liver microsomes (ZLM) to serve as a reference for the embryos. In addition, activity assays with the human CYP3A4-specific Luciferin isopropyl acetal (Luciferin-IPA) as well as inhibition studies with ketoconazole and CYP3cide were carried out to identify CYP activity in ZLM. In the present study, biotransformation of BOMR was detected at 72 and 96 hpf; however, metabolite formation was low compared with ZLM. Furthermore, Luciferin-IPA was not metabolized by the zebrafish. In conclusion, the capacity of intrinsic biotransformation in zebrafish embryos appears to be lacking during a major part of organogenesis.
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Affiliation(s)
- Evy Verbueken
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Antwerp, Belgium.
| | - Derek Alsop
- Wilson Tox Lab, Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada.
| | - Moayad A Saad
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Antwerp, Belgium.
| | - Casper Pype
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Antwerp, Belgium.
| | - Els M Van Peer
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Antwerp, Belgium.
| | - Christophe R Casteleyn
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Antwerp, Belgium.
| | - Chris J Van Ginneken
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Antwerp, Belgium.
| | - Joanna Wilson
- Wilson Tox Lab, Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada.
| | - Steven J Van Cruchten
- Applied Veterinary Morphology, Department of Veterinary Sciences, University of Antwerp, 2610 Wilrijk, Antwerp, Belgium.
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He Y, Folkerts EJ, Zhang Y, Martin JW, Alessi DS, Goss GG. Effects on Biotransformation, Oxidative Stress, and Endocrine Disruption in Rainbow Trout (Oncorhynchus mykiss) Exposed to Hydraulic Fracturing Flowback and Produced Water. Environ Sci Technol 2017; 51:940-947. [PMID: 27973770 DOI: 10.1021/acs.est.6b04695] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The effects of hydraulic fracturing (HF) flowback and produced water (HF-FPW), a complex saline mixture of injected HF fluids and deep formation water that return to the surface, was examined in rainbow trout (Oncorhynchus mykiss). Exposure to HF-FPWs resulted in significant induction of ethoxyresorufin-O-deethylase (EROD) activity in both liver and gill tissues. Increased lipid peroxidation via oxidative stress was also detected by thiobarbituric acid reactive substances (TBARS) assay. The mRNA expressions of a battery of genes related to biotransformation, oxidative stress, and endocrine disruption were also measured using quantitative real-time polymerase chain reaction (Q-RT-PCR). The increased expression of cyp1a (2.49 ± 0.28-fold), udpgt (2.01 ± 0.31-fold), sod (1.67 ± 0.09-fold), and gpx (1.58 ± 0.10-fold) in raw sample exposure group (7.5%) indicated elevated metabolic enzyme activity, likely through the aryl hydrocarbon receptor pathway, and generation of reactive oxygen species. In addition, the elevated vtg and era2 expression demonstrated endocrine disrupting potential exerted by HF-FPW in rainbow trout. The overall results suggested HF-FPW could cause significant adverse effects on fish, and the organic contents might play the major role in its toxicity. Future studies are needed to help fully determine the toxic mechanism(s) of HF-FPW on freshwater fish, and aid in establishing monitoring, treatment, and remediation protocols for HF-FPW.
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Affiliation(s)
- Yuhe He
- Department of Biological Sciences, ‡Department of Laboratory Medicine and Pathology and §Department of Earth and Atmospheric Sciences, University of Alberta , Edmonton, Alberta Canada , T6G 2E9
| | - Erik J Folkerts
- Department of Biological Sciences, ‡Department of Laboratory Medicine and Pathology and §Department of Earth and Atmospheric Sciences, University of Alberta , Edmonton, Alberta Canada , T6G 2E9
| | - Yifeng Zhang
- Department of Biological Sciences, ‡Department of Laboratory Medicine and Pathology and §Department of Earth and Atmospheric Sciences, University of Alberta , Edmonton, Alberta Canada , T6G 2E9
| | - Jonathan W Martin
- Department of Biological Sciences, ‡Department of Laboratory Medicine and Pathology and §Department of Earth and Atmospheric Sciences, University of Alberta , Edmonton, Alberta Canada , T6G 2E9
| | - Daniel S Alessi
- Department of Biological Sciences, ‡Department of Laboratory Medicine and Pathology and §Department of Earth and Atmospheric Sciences, University of Alberta , Edmonton, Alberta Canada , T6G 2E9
| | - Greg G Goss
- Department of Biological Sciences, ‡Department of Laboratory Medicine and Pathology and §Department of Earth and Atmospheric Sciences, University of Alberta , Edmonton, Alberta Canada , T6G 2E9
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Cheong J, Halladay JS, Plise E, Sodhi JK, Salphati L. The Effects of Drug Metabolizing Enzyme Inhibitors on Hepatic Efflux and Uptake Transporters. Drug Metab Lett 2017; 11:111-118. [PMID: 29032766 DOI: 10.2174/1872312811666171010101248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/01/2017] [Accepted: 10/03/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Non-selective chemical inhibitors of phase I and phase II enzymes are commonly used in in vitro metabolic studies to elucidate the biotransformation pathways of drugs. However, the inhibition of the inhibitors on efflux and uptake transporters is not well investigated, potentially leading to unexpected and ambiguous results in these studies. OBJECTIVE The commonly used metabolizing enzyme inhibitors, 1-aminobenzotriazole (ABT), SKF- 525A, pargyline, allopurinol, menadione, methimazole, piperine and raloxifene, were examined for their potential inhibition of the major hepatic ABC (ATP binding cassette) and SLC (solute carrier) transporters. METHODS Different concentrations of the metabolizing enzyme inhibitors were used to study their effects on ABC and SLC transporters expressed in MDR1-MDCKI, Bcrp1-MDCKII, OATP1B1-HEK, OATP1B3-HEK, OCT1-HEK, OCT3-HEK cells and MRP2 vesicles. RESULTS ABT, allopurinol and methimazole had no inhibitory effects on MDR1, Bcrp1, MRP2 or on OATP1B1, OATP1B3, OCT1 or OCT3. Pargyline did not inhibit OATP1B1 or OATP1B3, but weakly inhibited OCT1 and OCT3. In contrast, SKF-525A showed inhibition of not only MDR1, Bcrp1 and MRP2 but also OATP1B1, OATP1B3 and OCT1. Menadione and raloxifene weakly inhibited Bcrp1, but the inhibition of raloxifene on MDR1 was as potent as on the xanthine oxidase pterin oxidation. Piperine showed inhibition of MDR1, Bcrp1, OATP1B1, OCT1 and OCT3. CONCLUSION ABT, pargyline, allopurinol and methimazole have no inhibitory effects on the studied ABC and SLC transporters, suggesting the inhibitors are unlikely to cause confounding inhibition of transporters when used in metabolism studies. However, SKF525A, menadione, raloxifene and piperine can inhibit the activities of ABC and/or SLC transporters.
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Affiliation(s)
- Jonathan Cheong
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc. South San Francisco, CA, United States
| | - Jason S Halladay
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc. South San Francisco, CA, United States
- Plexxikon, Inc., 91 Bolivar Avenue, Berkeley, CA 94170, United States
| | - Emile Plise
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc. South San Francisco, CA, United States
| | - Jasleen K Sodhi
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc. South San Francisco, CA, United States
- Department of Bioengineering and Therapeutic Sciences, University of California, 533 Parnassus Avenue, Room U-68, San Francisco, CA 94143, United States
| | - Laurent Salphati
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc. South San Francisco, CA, United States
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Medana C, Santoro V, Bello FD, Sala C, Pazzi M, Sarro M, Calza P. Mass spectrometric fragmentation and photocatalytic transformation of nicotine and cotinine. Rapid Commun Mass Spectrom 2016; 30:2617-2627. [PMID: 27706863 DOI: 10.1002/rcm.7758] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/01/2016] [Accepted: 10/02/2016] [Indexed: 06/06/2023]
Abstract
RATIONALE Nicotine and cotinine are, respectively, alkaloids produced mainly by the Solanaceae plant family, especially tobacco, and its most important human metabolite. These compounds are frequently found as contaminants in wastewater or landfill samples and they could be used to evaluate pollution by tobacco use. The aim of this study is to improve the knowledge about possible transformation pathways of nicotine and cotinine. This would help the identification of degradants by using HPLC coupled with a high resolving power mass analyzer (LTQ-Orbitrap). In addition, we evaluated toxicity on bioluminescent photobacteria to indicate possible relationships between the formation of transformation products and their toxic effects. METHODS The transformation of nicotine and cotinine and the formation of intermediate products were evaluated adopting titanium dioxide as photocatalyst. The structural identification of photocatalytic transformation products of these two alkaloids was based on LC/multistage MS experiments. High-resolution MS allowed the elemental composition of these products to be hypothesized. The evolution of toxicity as a function of the irradiation time was also studied using a bioluminescent photobacterium (Vibrio fischeri) test. RESULTS Several products were formed and characterized using HPLC/HRMSn . The main photocatalytic pathways involving nicotine and cotinine appear to be hydroxylation, demethylation and oxidation. Nine degradants were formed from nicotine, including cotinine. Seven degradants were generated from cotinine. There is no transformation product in common between the two studied molecules. CONCLUSIONS The study of photocatalytic degradation allowed us to partially simulate human metabolism and the environmental transformation of the bioactive alkaloid nicotine. We searched for some of the identified transformation products in river water and landfill percolate by solid-phase extraction and HPLC/HRMS and eventually their presence was confirmed. These new findings could be of interest in further metabolism and environmental pollution studies. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Claudio Medana
- Department of Molecular Biotechnology and Health Sciences, University of Turin, via P. Giuria 5, 10125, Torino, Italy
| | - Valentina Santoro
- Department of Molecular Biotechnology and Health Sciences, University of Turin, via P. Giuria 5, 10125, Torino, Italy
| | - Federica Dal Bello
- Department of Molecular Biotechnology and Health Sciences, University of Turin, via P. Giuria 5, 10125, Torino, Italy
| | - Cecilia Sala
- Department of Molecular Biotechnology and Health Sciences, University of Turin, via P. Giuria 5, 10125, Torino, Italy
| | - Marco Pazzi
- Department of Chemistry and NIS Centre of Excellence, University of Turin, via P. Giuria 5, 10125, Torino, Italy
| | - Marco Sarro
- Department of Chemistry and NIS Centre of Excellence, University of Turin, via P. Giuria 5, 10125, Torino, Italy
| | - Paola Calza
- Department of Chemistry and NIS Centre of Excellence, University of Turin, via P. Giuria 5, 10125, Torino, Italy
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Roubalová L, Biedermann D, Papoušková B, Vacek J, Kuzma M, Křen V, Ulrichová J, Dinkova-Kostova AT, Vrba J. Semisynthetic flavonoid 7-O-galloylquercetin activates Nrf2 and induces Nrf2-dependent gene expression in RAW264.7 and Hepa1c1c7 cells. Chem Biol Interact 2016; 260:58-66. [PMID: 27777014 PMCID: PMC5148792 DOI: 10.1016/j.cbi.2016.10.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/06/2016] [Accepted: 10/19/2016] [Indexed: 01/06/2023]
Abstract
The natural flavonoid quercetin is known to activate the transcription factor Nrf2, which regulates the expression of cytoprotective enzymes such as heme oxygenase-1 (HO-1) and NAD(P)H:quinone oxidoreductase 1 (NQO1). In this study, a novel semisynthetic flavonoid 7-O-galloylquercetin (or quercetin-7-gallate, 3) was prepared by direct galloylation of quercetin, and its effect on the Nrf2 pathway was examined. A luciferase reporter assay showed that 7-O-galloylquercetin, like quercetin, significantly activated transcription via the antioxidant response element in a stably transfected human AREc32 reporter cell line. In addition, 7-O-galloylquercetin caused the accumulation of Nrf2 and induced the expression of HO-1 at both the mRNA and protein levels in murine macrophage RAW264.7 cells. The induction of HO-1 by 7-O-galloylquercetin was significantly suppressed by N-acetyl-l-cysteine and SB203580, indicating the involvement of reactive oxygen species and p38 mitogen-activated protein kinase activity, respectively. HPLC/MS analyses also showed that 7-O-galloylquercetin was not degalloylated to quercetin, but it was conjugated with glucuronic acid and/or methylated in RAW264.7 cells. Furthermore, 7-O-galloylquercetin was found to increase the protein levels of Nrf2 and HO-1, and also the activity of NQO1 in murine hepatoma Hepa1c1c7 cells. Taken together, we conclude that 7-O-galloylquercetin increases Nrf2 activity and induces Nrf2-dependent gene expression in RAW264.7 and Hepa1c1c7 cells.
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Affiliation(s)
- Lenka Roubalová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic
| | - David Biedermann
- Institute of Microbiology, Laboratory of Biotransformation, Czech Academy of Sciences, Vídeňská 1083, Prague 14220, Czech Republic
| | - Barbora Papoušková
- Regional Centre of Advanced Technologies and Materials, Department of Analytical Chemistry, Faculty of Science, Palacký University, 17. listopadu 12, Olomouc 77146, Czech Republic
| | - Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic
| | - Marek Kuzma
- Institute of Microbiology, Laboratory of Biotransformation, Czech Academy of Sciences, Vídeňská 1083, Prague 14220, Czech Republic
| | - Vladimír Křen
- Institute of Microbiology, Laboratory of Biotransformation, Czech Academy of Sciences, Vídeňská 1083, Prague 14220, Czech Republic
| | - Jitka Ulrichová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cancer Research, School of Medicine, University of Dundee, Dundee DD1 9SY, Scotland, UK
| | - Jiří Vrba
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University, Hněvotínská 3, Olomouc 77515, Czech Republic.
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50
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Tamogami S, Agrawal GK, Rakwal R. Methyl jasmonate elicits the biotransformation of geraniol stored as its glucose conjugate into methyl geranate in Achyranthes bidentata plant. Plant Physiol Biochem 2016; 109:166-170. [PMID: 27694012 DOI: 10.1016/j.plaphy.2016.09.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/17/2016] [Accepted: 09/17/2016] [Indexed: 05/08/2023]
Abstract
To investigate the biotransformation pathway of airborne geraniol by Achyranthes bidentata (A. bidentata), deuterium labeled geraniol was applied with or without methyl jasmonate (MeJA), and the biosynthesized metabolites were analyzed. In A. bidentata leaves, geraniol was conjugated with glucose. The conjugate was then metabolized to afford methyl geranate only under MeJA elicitation. MeJA elicits the biotransformation of geraniol into methyl geranate by inducing the conversion of the intermediate, glucose conjugate of geraniol.
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Affiliation(s)
- Shigeru Tamogami
- Laboratory of Biologically Active Compounds, Department of Biological Production, Akita Prefectural University, Akita 010-0195, Japan.
| | - Ganesh K Agrawal
- Research Laboratory for Biotechnology and Biochemistry (RLABB), Kathmandu, Nepal; GRADE Academy Private Limited, Adarsh Nagar-13, Birgunj, Nepal
| | - Randeep Rakwal
- Research Laboratory for Biotechnology and Biochemistry (RLABB), Kathmandu, Nepal; GRADE Academy Private Limited, Adarsh Nagar-13, Birgunj, Nepal; Faculty of Health and Sport Sciences and Tsukuba International Academy for Sport Studies (TIAS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan; Global Research Center for Innovative Life Science, Peptide Drug Innovation, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 4-41 Ebara 2-chome, Shinagawa, Tokyo 142-8501, Japan
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