2018
Aryl Hydrocarbon Receptor-Dependent Metabolism Plays a Significant Role in Estrogen-Like Effects of Polycyclic Aromatic Hydrocarbons on Cell Proliferation
HYZDALOVA, M., Jakub PIVNIČKA, Ondřej ZAPLETAL, G. VAZQUEZ-GOMEZ, J. MATTHEWS et. al.Základní údaje
Originální název
Aryl Hydrocarbon Receptor-Dependent Metabolism Plays a Significant Role in Estrogen-Like Effects of Polycyclic Aromatic Hydrocarbons on Cell Proliferation
Autoři
HYZDALOVA, M., Jakub PIVNIČKA (203 Česká republika, domácí), Ondřej ZAPLETAL (203 Česká republika, domácí), G. VAZQUEZ-GOMEZ, J. MATTHEWS, Jiří NEČA, Kateřina PĚNČÍKOVÁ (203 Česká republika), M. MACHALA a Jan VONDRÁČEK (203 Česká republika, garant)
Vydání
Toxicological sciences, OXFORD, OXFORD UNIV PRESS, 2018, 1096-6080
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10601 Cell biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.564
Kód RIV
RIV/00216224:14310/18:00106522
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000446112900020
Klíčová slova anglicky
aryl hydrocarbon receptor; polycyclic aromatic hydrocarbons; cytochrome P450 family 1; hydroxylated metabolites; estrogen receptor; cell cycle
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 23. 4. 2024 14:24, Mgr. Michal Petr
Anotace
V originále
Polycyclic aromatic hydrocarbons (PAHs) are widespread environmental contaminants that interact in a complex manner with both the aryl hydrocarbon receptor (AhR) and estrogen receptors (ER). Their potential endocrine-disrupting activities may depend on both inhibitory AhR-ER cross-talk and on AhR-dependent metabolic production of estrogenic PAH metabolites. Here, we analyzed the impact of AhR on estrogen-like effects of PAHs, such as benzotalpyrene (BaP), in particular, on control of cell cycle progression/cell proliferation. Using AhR knockout variant of estrogen-sensitive human breast cancer MCF-7 cells (MCF-7 AhR(KO) cells), we observed that the AhR-dependent control of cytochrome P450 family 1 (CYP1) expression played a major role in formation of estrogenic BaP metabolites, most notably 3-OH-BaP, which contributed to the ER-dependent induction of cell cycle progression/cell proliferation. Both BaP metabolism and the BaP-induced S-phase transition/cell proliferation were inhibited in MCF-7 AhR(KO) cells, whereas these cells remained sensitive towards both endogenous estrogen 17 beta-estradiol or hydroxylated BaP metabolites. BaP was found to increase the activity of ER-dependent luciferase reporter gene in wild-type MCF-7 cells; however, unlike its hydroxylated metabolite, BaP failed to stimulate luciferase activity in MCF-7 AhR(KO) cells. Similarly, estrogen-like effects of other known estrogenic PAHs, such as benzfajanthracene or 3-methylcholanthrene, were diminished in MCF-7 AhR(KO) cells. Ectopic expression of human CYP1A1 and CYP1B1 enzymes partly restored both BaP metabolism and its effects on cell proliferation. Taken together, our data suggest that the AhR-dependent metabolism of PAHs contributes significantly to the impact of PAHs on cell proliferation in estrogen-sensitive cells.