J 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.

Basic information

Original name

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

Authors

TYLICHOVÁ, Zuzana (203 Czech Republic, belonging to the institution), Nicol STRAKOVÁ (203 Czech Republic), Jan VONDRÁČEK (203 Czech Republic, belonging to the institution), A.H. VACULOVA (203 Czech Republic), Alois KOZUBÍK (203 Czech Republic, belonging to the institution) and Jiřina HOFMANOVÁ (203 Czech Republic, guarantor, belonging to the institution)

Edition

JOURNAL OF NUTRITIONAL BIOCHEMISTRY, NEW YORK, ELSEVIER SCIENCE INC, 2017, 0955-2863

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10601 Cell biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 4.414

RIV identification code

RIV/00216224:14310/17:00097699

Organization unit

Faculty of Science

DOI

UT WoS

000389566200017

Keywords in English

Colon cancer; Butyrate; PPAR gamma; Autophagy; Differentiation; Docosahexaenoic acid

Tags

Tags

International impact, Reviewed
Změněno: 28/3/2018 09:23, Ing. Nicole Zrilić

Abstract

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.