title: Remodeling of phospholipid composition in colon cancer cells by 1α,25(OH)2D3 and its analogs.
abstract: Alterations in cellular phospholipid composition are emerging as important traits in the development and progression of cancer. In this study we investigated the effects of 1α,25-dihydroxyvitamin D3 [1,25(OH)2D3] and two of its more antiproliferative analogs on the cellular phospholipid composition of various human colon cancer cell lines. Treatment of Caco-2, SW1417 and SW480-ADH cells with 3×10(-8)M 1,25(OH)2D3, CD578 or WU515 evoked significant changes in phospholipid composition, with the analogs being more potent than the natural compound. Observed effects included changes in acyl chain elongation and acyl chain saturation, and were substantially different in the various cell lines. Consistent with the alterations in phospholipid profiles, 1,25(OH)2D3 and its analogs provoked changes in several lipogenic enzymes such as fatty acid synthase (FASN), acetyl-CoA carboxylase (ACACA) and fatty acid elongases (ELOVLs). These effects were also cell line dependent. Taken together these findings indicate that 1,25(OH)2D3 and its analogs have divergent effects on the phospholipid composition of different colon cancer cell lines and warrant further investigation of the effect of 1,25(OH)2D3 and its analogs on lipid metabolism in various subtypes of primary human colon cancers.
authors.affiliation: Laboratory of Clinical and Experimental Endocrinology, KU Leuven - University of Leuven, Herestraat 49, bus 902, 3000 Leuven, Belgium. Electronic address: carlien.leyssens@med.kuleuven.be.
authors.forename: Carlien
authors.initials: C
authors.lastname: Leyssens
authors.affiliation: Laboratory of Lipid Metabolism and Cancer, KU Leuven - University of Leuven, Herestraat 49, bus 902, 3000 Leuven, Belgium. Electronic address: eyra.marien@med.kuleuven.be.
authors.forename: Eyra
authors.initials: E
authors.lastname: Marien
authors.affiliation: Laboratory of Clinical and Experimental Endocrinology, KU Leuven - University of Leuven, Herestraat 49, bus 902, 3000 Leuven, Belgium. Electronic address: lieve.verlinden@med.kuleuven.be.
authors.forename: Lieve
authors.initials: L
authors.lastname: Verlinden
authors.affiliation: Laboratory of Protein Phosphorylation and Proteomics, KU Leuven - University of Leuven, Herestraat 49, bus 901, 3000 Leuven, Belgium. Electronic address: rita.derua@med.kuleuven.be.
authors.forename: Rita
authors.initials: R
authors.lastname: Derua
authors.affiliation: Laboratory of Protein Phosphorylation and Proteomics, KU Leuven - University of Leuven, Herestraat 49, bus 901, 3000 Leuven, Belgium. Electronic address: etienne.waelkens@med.kuleuven.be.
authors.forename: Etienne
authors.initials: E
authors.lastname: Waelkens
authors.affiliation: Laboratory of Lipid Metabolism and Cancer, KU Leuven - University of Leuven, Herestraat 49, bus 902, 3000 Leuven, Belgium. Electronic address: johan.swinnen@med.kuleuven.be.
authors.forename: Johannes V
authors.initials: JV
authors.lastname: Swinnen
authors.affiliation: Laboratory of Clinical and Experimental Endocrinology, KU Leuven - University of Leuven, Herestraat 49, bus 902, 3000 Leuven, Belgium. Electronic address: mieke.verstuyf@med.kuleuven.be.
authors.forename: Annemieke
authors.initials: A
authors.lastname: Verstuyf
mesh_terms: D002117:Calcitriol / Q000031:analogs & derivatives* / Q000494:pharmacology*; D003110:Colonic Neoplasms / Q000188:drug therapy* / Q000378:metabolism*; D006801:Humans; D010743:Phospholipids / Q000378:metabolism*; D014407:Tumor Cells, Cultured; D014815:Vitamins / Q000494:pharmacology*
chemical_list: D010743:Phospholipids; D014815:Vitamins; D002117:Calcitriol
keywords: Colon cancer; Lipidomics; Phospholipid metabolism; Vitamin D; Vitamin D analogs