Klepinina 2021 PLoS One

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Klepinina L, Klepinin A, Truu L, Chekulayev V, Vija H, Kuus K, Teino I, Pook M, Maimets T, Kaambre T (2021) Colon cancer cell differentiation by sodium butyrate modulates metabolic plasticity of Caco-2 cells via alteration of phosphotransfer network. PLoS One 16:e0245348.

» PMID: 33471801 Open Access »O2k-brief

Klepinina Lyudmila, Klepinin Aleksandr, Truu Laura, Chekulayev Vladimir, Vija Heiki, Kuus Kaisa, Teino Indrek, Pook Martin, Maimets Toivo, Kaambre Tuuli (2021) PLoS One

Abstract: The ability of butyrate to promote differentiation of cancer cells has important implication for colorectal cancer (CRC) prevention and therapy. In this study, we examined the effect of sodium butyrate (NaBT) on the energy metabolism of colon adenocarcinoma Caco-2 cells coupled with their differentiation. NaBT increased the activity of alkaline phosphatase indicating differentiation of Caco-2 cells. Changes in the expression of pluripotency-associated markers OCT4, NANOG and SOX2 were characterized during the induced differentiation at mRNA level along with the measures that allowed distinguishing the expression of different transcript variants. The functional activity of mitochondria was studied by high-resolution respirometry. Glycolytic pathway and phosphotransfer network were analyzed using enzymatical assays. The treatment of Caco-2 cells with NaBT increased production of ATP by oxidative phosphorylation, enhanced mitochondrial spare respiratory capacity and caused rearrangement of the cellular phosphotransfer networks. The flexibility of phosphotransfer networks depended on the availability of glutamine, but not glucose in the cell growth medium. These changes were accompanied by suppressed cell proliferation and altered gene expression of the main pluripotency-associated transcription factors. This study supports the view that modulating cell metabolism through NaBT can be an effective strategy for treating CRC. Our data indicate a close relationship between the phosphotransfer performance and metabolic plasticity of CRC, which is associated with the cell differentiation state.


Bioblast editor: Plangger M O2k-Network Lab: EE Tallinn Kaambre T


Labels: MiParea: Respiration, Pharmacology;toxicology  Pathology: Cancer 

Organism: Human  Tissue;cell: Endothelial;epithelial;mesothelial cell  Preparation: Permeabilized cells, Intact cells 


Coupling state: LEAK, ROUTINE, OXPHOS, ET  Pathway: N, NS, ROX  HRR: Oxygraph-2k 

2021-01, O2k-brief