J 2021

Complex Alterations of Fatty Acid Metabolism and Phospholipidome Uncovered in Isolated Colon Cancer Epithelial Cells

HOFMANOVÁ, Jiřina, Josef SLAVIK, Miroslav CIGANEK, Petra OVESNÁ, Zuzana TYLICHOVA et. al.

Basic information

Original name

Complex Alterations of Fatty Acid Metabolism and Phospholipidome Uncovered in Isolated Colon Cancer Epithelial Cells

Authors

HOFMANOVÁ, Jiřina, Josef SLAVIK, Miroslav CIGANEK, Petra OVESNÁ, Zuzana TYLICHOVA, Martina KARASOVÁ, Ondrej ZAPLETAL, Nicol STRAKOVA, Jiřina PROCHÁZKOVÁ, Jan BOUCHAL, Zdenek KOLAR, Jiri EHRMANN, Monika LEVKOVA, Zlatka HUSKOVA, Pavel SKALICKY, Alois KOZUBÍK, Miroslav MACHALA and Jan VONDRÁČEK

Edition

International Journal of Molecular Sciences, Basel, Multidisciplinary Digital Publishing Institute, 2021, 1422-0067

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.208

Organization unit

Faculty of Science

UT WoS

000671202800001

Keywords in English

phospholipids; lysophospholipids; fatty acid synthesis; desaturation; colorectal carcinoma; EpCAM; epithelial cells; lipidomics

Tags

International impact, Reviewed
Změněno: 24/4/2024 13:38, Mgr. Jiřina Procházková, Ph.D.

Abstract

V originále

The development of colon cancer, one of the most common malignancies, is accompanied with numerous lipid alterations. However, analyses of whole tumor samples may not always provide an accurate description of specific changes occurring directly in tumor epithelial cells. Here, we analyzed in detail the phospholipid (PL), lysophospholipid (lysoPL), and fatty acid (FA) profiles of purified EpCAM(+) cells, isolated from tumor and adjacent non-tumor tissues of colon cancer patients. We found that a number of FAs increased significantly in isolated tumor cells, which also included a number of long polyunsaturated FAs. Higher levels of FAs were associated with increased expression of FA synthesis genes, as well as with altered expression of enzymes involved in FA elongation and desaturation, including particularly fatty acid synthase, stearoyl-CoA desaturase, fatty acid desaturase 2 and ELOVL5 fatty acid elongase 5 We identified significant changes in ratios of specific lysoPLs and corresponding PLs. A number of lysophosphatidylcholine and lysophosphatidylethanolamine species, containing long-chain and very-long chain FAs, often with high numbers of double bonds, were significantly upregulated in tumor cells. Increased de novo synthesis of very long-chain FAs, or, altered uptake or incorporation of these FAs into specific lysoPLs in tumor cells, may thus contribute to reprogramming of cellular phospholipidome and membrane alterations observed in colon cancer.