Assessing the impact of benzo[a]pyrene with the in vitro fish gut model: An integrated approach for eco-genotoxicological studies.
dc.contributor.author | Langan, Laura | |
dc.contributor.author | Arossa, S | |
dc.contributor.author | Owen, SF | |
dc.contributor.author | Jha, Awadhesh | |
dc.date.accessioned | 2018-02-26T14:27:11Z | |
dc.date.available | 2018-02-26T14:27:11Z | |
dc.date.issued | 2018-02 | |
dc.identifier.issn | 1383-5718 | |
dc.identifier.issn | 1873-135X | |
dc.identifier.uri | http://hdl.handle.net/10026.1/10856 | |
dc.description.abstract |
In vitro models are emerging tools for reducing reliance on traditional toxicity tests, especially in areas where information is sparse. For studies of fish, this is especially important for extrahepatic organs, such as the intestine, which, until recently, have been largely overlooked in favour of the liver or gill. Considering the importance of dietary uptake of contaminants, the rainbow trout (Oncorhynchus mykiss) intestine-derived cell line RTgutGC was cultured, to test its suitability as a high-throughput in vitro model. Benzo[a]pyrene (B[a]P) is an important contaminant and a model polycyclic aromatic hydrocarbon (PAH). Over 48 h exposure, a range of endpoints and xenobiotic metabolism rates were examined at three different pH levels indicative of the in vitro (pH 7.5) and in vivo mid-gut (pH 7.7) and hind-gut (pH 7.4) regions as a function of time. These endpoints included (i) cell viability: acid phosphatase (APH) and lactate dehydrogenase (LDH) assays; (ii) glucose uptake; (iii) cytochrome P450 enzyme activity: 7-ethoxyresoorufin-O-deethylase (EROD) assay; (iv) glutathione transferase (GST) activity; (v) genotoxic damage determined using the comet assay. Absence of cell viability loss, in parallel with decrease in the parent compound (B[a]P) in the medium and its subsequent increase in the cells suggested active sequestration, biotransformation, and removal of this representative PAH. With respect to genotoxic response, significant differences were observed at both the sampling times and the two highest concentrations of B[a]P. No significant differences were observed for the different pH conditions. Overall, this in vitro xenobiotic metabolism system appears to be a robust model, providing a basis for further development to evaluate metabolic and toxicological potential of contaminants without use of animals. | |
dc.format.extent | 53-64 | |
dc.format.medium | Print-Electronic | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.subject | 3Rs | |
dc.subject | B[a]P | |
dc.subject | Comet assay | |
dc.subject | Dietary exposure | |
dc.subject | RTgutGC | |
dc.subject | Rainbow trout | |
dc.title | Assessing the impact of benzo[a]pyrene with the in vitro fish gut model: An integrated approach for eco-genotoxicological studies. | |
dc.type | journal-article | |
dc.type | Journal Article | |
plymouth.author-url | https://www.ncbi.nlm.nih.gov/pubmed/29412870 | |
plymouth.volume | 826 | |
plymouth.publication-status | Published | |
plymouth.journal | Mutation Research - Genetic Toxicology and Environmental Mutagenesis | |
dc.identifier.doi | 10.1016/j.mrgentox.2017.12.009 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Admin Group - REF | |
plymouth.organisational-group | /Plymouth/Admin Group - REF/REF Admin Group - FoSE | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Marine Institute | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
plymouth.organisational-group | /Plymouth/Users by role/Researchers in ResearchFish submission | |
dc.publisher.place | Netherlands | |
dcterms.dateAccepted | 2017-12-18 | |
dc.rights.embargodate | 2018-12-24 | |
dc.identifier.eissn | 1873-135X | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1016/j.mrgentox.2017.12.009 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2018-02 | |
rioxxterms.type | Journal Article/Review | |
plymouth.funder | Moving up a dimension: 3D in vitro models as effective alternatives to live fish studies::BBSRC |