2020
Vondráček, Jan; Pěnčíková, Kateřina; Ciganek, Miroslav; Pivnička, Jakub; Karasová, Martina; Hýžďalová, Martina; Strapáčová, Simona; Pálková, Lenka; Neča, Jiří; Matthews, Jason; Lom, Michal Vojtíšek; Topinka, Jan; Milcová, Alena; Machala, Miroslav
Environmental six-ring polycyclic aromatic hydrocarbons are potent inducers of the AhR-dependent signaling in human cells. Journal Article
In: Environmental pollution (Barking, Essex : 1987), vol. 266, no. Pt 2, pp. 115125, 2020, ISSN: 1873-6424 0269-7491, (Place: England).
Abstract | Links | BibTeX | Tags: *Polycyclic Aromatic Hydrocarbons, *Receptors, AhR, Anti-estrogenicity, Aryl Hydrocarbon, Carcinogenic PAHs, Genotoxicity, Humans, Lung cell toxicity, Particulate Matter, Signal Transduction, Vehicle Emissions
@article{vondracek_environmental_2020,
title = {Environmental six-ring polycyclic aromatic hydrocarbons are potent inducers of the AhR-dependent signaling in human cells.},
author = {Jan Vondráček and Kateřina Pěnčíková and Miroslav Ciganek and Jakub Pivnička and Martina Karasová and Martina Hýžďalová and Simona Strapáčová and Lenka Pálková and Jiří Neča and Jason Matthews and Michal Vojtíšek Lom and Jan Topinka and Alena Milcová and Miroslav Machala},
doi = {10.1016/j.envpol.2020.115125},
issn = {1873-6424 0269-7491},
year = {2020},
date = {2020-11-01},
journal = {Environmental pollution (Barking, Essex : 1987)},
volume = {266},
number = {Pt 2},
pages = {115125},
abstract = {The toxicities of many environmental polycyclic aromatic hydrocarbons (PAHs), in particular those of high-molecular-weight PAHs (with MW higher than 300), remain poorly characterized. The objective of this study was to evaluate the ability of selected environmentally relevant PAHs with MW 302 (MW302 PAHs) to activate the aryl hydrocarbon receptor (AhR), since this represents a major toxic mode of action of PAHs. A large number of the evaluated compounds exhibited strong AhR-mediated activities, in particular in human models. The studied MW302 PAHs also significantly contributed to the overall calculated AhR activities of complex environmental mixtures, including both defined standard reference materials and collected diesel exhaust particles. The high AhR-mediated activities of representative MW302 PAHs, e.g. naphtho[1,2-k]fluoranthene, corresponded with the modulation of expression of relevant AhR target genes in a human lung cell model, or with the AhR-dependent suppression of cell cycle progression/proliferation in estrogen-sensitive cells. This was in a marked contrast with the limited genotoxicity of the same compound(s). Given the substantial levels of the AhR-activating MW302 PAHs in combustion particles, it seems important to continue to investigate the toxic modes of action of this large group of PAHs associated with airborne particulate matter.},
note = {Place: England},
keywords = {*Polycyclic Aromatic Hydrocarbons, *Receptors, AhR, Anti-estrogenicity, Aryl Hydrocarbon, Carcinogenic PAHs, Genotoxicity, Humans, Lung cell toxicity, Particulate Matter, Signal Transduction, Vehicle Emissions},
pubstate = {published},
tppubtype = {article}
}
The toxicities of many environmental polycyclic aromatic hydrocarbons (PAHs), in particular those of high-molecular-weight PAHs (with MW higher than 300), remain poorly characterized. The objective of this study was to evaluate the ability of selected environmentally relevant PAHs with MW 302 (MW302 PAHs) to activate the aryl hydrocarbon receptor (AhR), since this represents a major toxic mode of action of PAHs. A large number of the evaluated compounds exhibited strong AhR-mediated activities, in particular in human models. The studied MW302 PAHs also significantly contributed to the overall calculated AhR activities of complex environmental mixtures, including both defined standard reference materials and collected diesel exhaust particles. The high AhR-mediated activities of representative MW302 PAHs, e.g. naphtho[1,2-k]fluoranthene, corresponded with the modulation of expression of relevant AhR target genes in a human lung cell model, or with the AhR-dependent suppression of cell cycle progression/proliferation in estrogen-sensitive cells. This was in a marked contrast with the limited genotoxicity of the same compound(s). Given the substantial levels of the AhR-activating MW302 PAHs in combustion particles, it seems important to continue to investigate the toxic modes of action of this large group of PAHs associated with airborne particulate matter.