2022
Characterizing toxicity pathways of fluoxetine to predict adverse outcomes in adult fathead minnows (Pimephales promelas)
COLVILLE, Carly; Alper James ALCARAZ; Derek GREEN; Bradley PARK; Jianguo XIA et. al.Základní údaje
Originální název
Characterizing toxicity pathways of fluoxetine to predict adverse outcomes in adult fathead minnows (Pimephales promelas)
Autoři
COLVILLE, Carly; Alper James ALCARAZ; Derek GREEN; Bradley PARK; Jianguo XIA; Othman SOUFAN; Pavel HRUŠKA; David POTĚŠIL; Zbyněk ZDRÁHAL; Doug CRUMP; Niladri BASU; Natacha HOGAN a Markus HECKER
Vydání
SCIENCE OF THE TOTAL ENVIRONMENT, NETHERLANDS, ELSEVIER, 2022, 0048-9697
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 9.800
Kód RIV
RIV/00216224:14310/22:00125949
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000766818100009
EID Scopus
2-s2.0-85122801092
Klíčová slova anglicky
Fathead minnow Fluoxetine Transcriptomics Proteomics Fecundity Toxicity pathways
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 11. 2024 20:59, Ing. Martina Blahová
Anotace
V originále
Current ecotoxicity testing programs are impeded as they predominantly rely on slow and expensive animal tests measuring adverse outcomes. Therefore, new approach methodologies (NAMs) increasingly involve short-term mechanistic assays that employ molecular endpoints to predict adverse outcomes of regulatory relevance. This study aimed to elucidate the application of NAMs in adult fathead minnows using fluoxetine (FLX) as a model compound. Fish were exposed to three FLX concentrations (measured: 2.42, 10.7, and 56.7 mu gL(-1)) and a control. After 96 h, molecular toxicity signatures were characterized using proteomics and transcriptomics analyses in livers and brains of a sub-set of fish. The remaining fish were sampled at 21 days and assessed for liver histopathology and morphometric measurements. Fecundity was monitored throughout the study. In the livers, 56.7 mu gL(-1) FLX caused enrichment of PPAR signaling in the proteome and fatty acid-related pathways in the transcriptome, potential upstream responses that led to lipid-type vacuolation of hepatocytes, observed via histopathology. Upregulated genes in the brain suggested alterations in serotonin-related signaling processes and reproductive behaviour, which may explain the observed signifi-cant decrease in fecundity. While the relationships between molecular responses and adverse outcomes remain complex, this research provided important insights into the mechanistic toxicity of FLX.
Návaznosti
| LM2018140, projekt VaV |
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| LQ1601, projekt VaV |
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| 90127, velká výzkumná infrastruktura |
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