2017
Butyrate alters expression of cytochrome P450 1A1 and metabolism of benzo[a] pyrene via its histone deacetylase activity in colon epithelial cell models
ZAPLETAL, Ondřej, Zuzana TYLICHOVÁ, Jiří NEČA, Jiří KOHOUTEK, Miroslav MACHALA et. al.Základní údaje
Originální název
Butyrate alters expression of cytochrome P450 1A1 and metabolism of benzo[a] pyrene via its histone deacetylase activity in colon epithelial cell models
Autoři
ZAPLETAL, Ondřej (203 Česká republika, domácí), Zuzana TYLICHOVÁ (203 Česká republika, domácí), Jiří NEČA (203 Česká republika), Jiří KOHOUTEK (203 Česká republika), Miroslav MACHALA (203 Česká republika), A. MILCOVA (203 Česká republika), Michaela POKORNA (203 Česká republika), Jan TOPINKA (203 Česká republika), M.P. MOYER (840 Spojené státy), Jiřina HOFMANOVÁ (203 Česká republika), Alois KOZUBÍK (203 Česká republika) a Jan VONDRÁČEK (203 Česká republika, garant)
Vydání
ARCHIVES OF TOXICOLOGY, HEIDELBERG, SPRINGER HEIDELBERG, 2017, 0340-5761
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10601 Cell biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 5.728
Kód RIV
RIV/00216224:14310/17:00097700
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000399875300008
Klíčová slova anglicky
CYP1A1; Butyrate; Polycyclic aromatic hydrocarbons; DNA adducts; Histone deacetylases; Colon epithelial cells
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 3. 2018 15:21, Ing. Nicole Zrilić
Anotace
V originále
Butyrate, a short-chain fatty acid produced by fermentation of dietary fiber, is an important regulator of colonic epithelium homeostasis. In this study, we investigated the impact of this histone deacetylase (HDAC) inhibitor on expression/activity of cytochrome P450 family 1 (CYP1) and on metabolism of carcinogenic polycyclic aromatic hydrocarbon, benzo[a] pyrene (BaP), in colon epithelial cells. Sodium butyrate (NaBt) strongly potentiated the BaP-induced expression of CYP1A1 in human colon carcinoma HCT116 cells. It also co-stimulated the 7-ethoxyresorufin-O-deethylase (EROD) activity induced by the 2,3,7,8-tetrachlorodibenzo-p-dioxin, a prototypical ligand of the aryl hydrocarbon receptor. Up-regulation of CYP1A1 expression/activity corresponded with an enhanced metabolism of BaP and formation of covalent DNA adducts. NaBt significantly potentiated CYP1A1 induction and/or metabolic activation of BaP also in other human colon cell models, colon adenoma AA/C1 cells, colon carcinoma HT-29 cells, or in NCM460D cell line derived from normal colon mucosa. Our results suggest that the effects of NaBt were due to its impact on histone acetylation, because additional HDAC inhibitors (trichostatin A and suberanilohydroxamic acid) likewise increased both the induction of EROD activity and formation of covalent DNA adducts. NaBt-induced acetylation of histone II3 (at Lys14) and histone II4 (at Lys16), two histone modifications modulated during activation of CYP1A1 transcription, and it reduced binding of HDAC1 to the enhancer region of CYP1A1 gene. This in vitro study suggests that butyrate, through modulation of histone acetylation, may potentiate induction of CYP1A1 expression, which might in turn alter the metabolism of BaP within colon epithelial cells.