6533b837fe1ef96bd12a29ad

RESEARCH PRODUCT

Preferential uptake of polyunsaturated fatty acids by colorectal cancer cells

Ewa SokołowskaJarosław KobielaAdriana MikaPiotr StepnowskiMichał ChmielewskiAlicja PakietTomasz SledzinskiAntonella Marino-gammazzaAleksandra CzumajWojciech Makarewicz

subject

0301 basic medicineMaleColorectal cancerlcsh:MedicineCell membrane0302 clinical medicinelipid metabolismIntestinal Mucosalcsh:SciencePhospholipidschemistry.chemical_classificationMultidisciplinaryChemistryfood and beveragespolyunsaturated fatty acidColon cancermedicine.anatomical_structure030220 oncology & carcinogenesisFatty Acids UnsaturatedFemalelipids (amino acids peptides and proteins)Colorectal NeoplasmsHT29 CellsPolyunsaturated fatty acidmedicine.medical_specialtyColoncolorectal cancerArticleIncubation period03 medical and health sciencesHT29 CellsInternal medicineCell Line TumormedicineHumansAgedCell ProliferationCell Membranelcsh:RFatty acidmedicine.diseaseeye diseasesdigestive system diseases030104 developmental biologyEndocrinologyCell cultureCancer cellLipidomicslcsh:Qsense organs

description

AbstractAlthough a growing body of evidence suggests that colorectal cancer (CRC) is associated with alterations of fatty acid (FA) profiles in serum and tumor tissues, available data about polyunsaturated fatty acid (PUFA) content in CRC patients are inconclusive. Our study showed that CRC tissues contained more PUFAs than normal large intestinal mucosa. However, serum levels of PUFAs in CRC patients were lower than in healthy controls. To explain the mechanism of PUFA alterations in CRC, we measured FA uptake by the colon cancer cells and normal colon cells. The levels of PUFAs in colon cancer cell culture medium decreased significantly with incubation time, while no changes were observed in the medium in which normal colon cells were incubated. Our findings suggest that the alterations in tumor and serum PUFA profiles result from preferential uptake of these FAs by cancer cells; indeed, PUFAs are essential for formation of cell membrane phospholipids during rapid proliferation of cancer cells. This observation puts into question potential benefits of PUFA supplementation in CRC patients.

yearjournalcountryeditionlanguage
2020-02-01Scientific Reports
10.1038/s41598-020-58895-7http://link.springer.com/article/10.1038/s41598-020-58895-7