2011
Enhancement of AhR-mediated activity of selected pollutants and their mixtures after interaction with dissolved organic matter
BITTNER, Michal, Petra MACÍKOVÁ, John P. GIESY a Klára HILSCHEROVÁZákladní údaje
Originální název
Enhancement of AhR-mediated activity of selected pollutants and their mixtures after interaction with dissolved organic matter
Autoři
BITTNER, Michal (203 Česká republika, domácí), Petra MACÍKOVÁ (203 Česká republika, domácí), John P. GIESY (124 Kanada) a Klára HILSCHEROVÁ (203 Česká republika, garant, domácí)
Vydání
Environment International, OXFORD, ENGLAND, PERGAMON-ELSEVIER, 2011, 0160-4120
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 5.297
Kód RIV
RIV/00216224:14310/11:00050132
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000292012100017
Klíčová slova anglicky
Humic substances; AhR; Mixture; Interaction; H4IIE-luc; Organic pollutants
Změněno: 10. 7. 2017 13:45, RNDr. Mgr. Michal Bittner, Ph.D.
Anotace
V originále
In vitro effects of binary mixtures of various DOM (mainly HS) with various HOCs on AhR-mediated responses were studied by use of H4IIE-luc cells. 6 out of 12 DOM activated the AhR even at environmentally relevant concentrations (17 mg L(-1)). In simultaneous exposures of H4IIE-luc cells to DOM and each of the model compounds, 2,3,7,8-TCDD, PCB126, PCB169, benzo[a]pyrene, benzo[a]anthracene, dibenz[a,h]anthracene, fluoranthene, a mixture of POPs, a mixture of PAHs, and a mixture of all HOCs, either significant additive or facilitative effects were observed when compared to activities of single HOCs. No significant decrease of effects due to sorption of HOCs to DOM was observed, even in subsequent experiments when HOCs + DOM mixtures were preincubated for six days before exposure to H4IIE-luc. Thus, DOM does not seem to protect organisms against AhR-mediated toxic effects of HOCs (as predicted due to sorption of HOCs on DOM), but it can enhance their potency for AhR-mediated effects in some situations.
Návaznosti
ED0001/01/01, projekt VaV |
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GP525/08/P464, projekt VaV |
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MSM0021622412, záměr |
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