2017
Activation of autophagy and PPAR gamma protect colon cancer cells against apoptosis induced by interactive effects of butyrate and DHA in a cell type-dependent manner: The role of cell differentiation
TYLICHOVÁ, Zuzana, Nicol STRAKOVÁ, Jan VONDRÁČEK, A.H. VACULOVA, Alois KOZUBÍK et. al.Základní údaje
Originální název
Activation of autophagy and PPAR gamma protect colon cancer cells against apoptosis induced by interactive effects of butyrate and DHA in a cell type-dependent manner: The role of cell differentiation
Autoři
TYLICHOVÁ, Zuzana (203 Česká republika, domácí), Nicol STRAKOVÁ (203 Česká republika), Jan VONDRÁČEK (203 Česká republika, domácí), A.H. VACULOVA (203 Česká republika), Alois KOZUBÍK (203 Česká republika, domácí) a Jiřina HOFMANOVÁ (203 Česká republika, garant, domácí)
Vydání
JOURNAL OF NUTRITIONAL BIOCHEMISTRY, NEW YORK, ELSEVIER SCIENCE INC, 2017, 0955-2863
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: 4.414
Kód RIV
RIV/00216224:14310/17:00097699
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000389566200017
Klíčová slova anglicky
Colon cancer; Butyrate; PPAR gamma; Autophagy; Differentiation; Docosahexaenoic acid
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 3. 2018 09:23, Ing. Nicole Zrilić
Anotace
V originále
The short-chain and n-3 polyunsaturated fatty acids exhibit anticancer properties, and they may mutually interact within the colon. However, the molecular mechanisms of their action in colon cancer cells are still not fully understood. Our study focused on the mechanisms responsible for the diverse effects of sodium butyrate (NaBt), in particular when interacting with docosahexaenoic acid (DHA), in distinct colon cancer cell types, in which NaBt either induces cell differentiation or activates programmed cell death involving mitochondrial pathway. NaBt activated aufophagy both in HT-29 cells, which are sensitive to induction of differentiation, and in nondifferentiating HCT-116 cells. However, autophagy supported cell survival only in HT-29 cells. Combination of NaBt with DHA-promoted cell death, especially in HCT-116 cells and after longer time intervals. The inhibition of autophagy both attenuated differentiation and enhanced apoptosis in HT-29 cells treated with NaBt and DHA, but it had no effect in HCT-116 cells. NaBt, especially in combination with DHA, activated PPAR gamma in both cell types. PPAR gamma silencing decreased differentiation and increased apoptosis only in HT-29 cells, therefore we verified the role of caspases in apoptosis, differentiation and also PPAR gamma activity using a pan-caspase inhibitor. In summary, our data suggest that diverse responses of colon cancer cells to fatty acids may rely on their sensitivity to differentiation, which may in turn depend on distinct engagement of autophagy, caspases and PPAR gamma. These results contribute to understanding of mechanisms underlying differential effects of NaBt, when interacting with other dietary fatty acids, in colon cancer cells. (C) 2016 Elsevier Inc. All rights reserved.