2022
Aryl Hydrocarbon Receptor (AhR) Limits the Inflammatory Responses in Human Lung Adenocarcinoma A549 Cells via Interference with NF-kappa B Signaling
VAZQUEZ-GOMEZ, Gerardo, Martina KARASOVÁ, Zuzana TYLICHOVA, Marketa KABATKOVA, Aleš HAMPL et. al.Základní údaje
Originální název
Aryl Hydrocarbon Receptor (AhR) Limits the Inflammatory Responses in Human Lung Adenocarcinoma A549 Cells via Interference with NF-kappa B Signaling
Autoři
VAZQUEZ-GOMEZ, Gerardo (garant), Martina KARASOVÁ (203 Česká republika, domácí), Zuzana TYLICHOVA (203 Česká republika), Marketa KABATKOVA (203 Česká republika), Aleš HAMPL (203 Česká republika, domácí), Jason MATTHEWS, Jiri NECA (203 Česká republika), Miroslav CIGANEK (203 Česká republika), Miroslav MACHALA (203 Česká republika) a Jan VONDRACEK (203 Česká republika)
Vydání
Cells, BASEL, MDPI, 2022, 2073-4409
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10601 Cell biology
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 6.000
Kód RIV
RIV/00216224:14310/22:00128710
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000763873200001
Klíčová slova anglicky
AhR; inflammation; alveolar epithelial type II cellsNF-kappa B; prostaglandins; cytokines
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 14. 3. 2023 09:09, Mgr. Tereza Miškechová
Anotace
V originále
Apart from its role in the metabolism of carcinogens, the aryl hydrocarbon receptor (AhR) has been suggested to be involved in the control of inflammatory responses within the respiratory tract. However, the mechanisms responsible for this are only partially known. In this study, we used A549 cell line, as a human model of lung alveolar type II (ATII)-like cells, to study the functional role of the AhR in control of inflammatory responses. Using IL-1 beta as an inflammation inducer, we found that the induction of cyclooxygenase-2 and secretion of prostaglandins, as well as expression and release of pro-inflammatory cytokines, were significantly higher in the AhR-deficient A549 cells. This was linked with an increased nuclear factor-kappa B (NF-kappa B) activity, and significantly enhanced phosphorylation of its regulators, IKK alpha/beta, and their target I kappa B alpha, in the AhR-deficient A549 cells. In line with this, when we mimicked the exposure to a complex mixture of airborne pollutants, using an organic extract of reference diesel exhaust particle mixture, an exacerbated inflammatory response was observed in the AhR-deficient cells, as compared with wild-type A549 cells. Together, the present results indicate that the AhR may act as a negative regulator of the inflammatory response in the A549 model, via a direct modulation of NF-kappa B signaling. Its role(s) in the control of inflammation within the lung alveoli exposed to airborne pollutants, especially those which simultaneously activate the AhR, thus deserve further attention.