Short-chain lipid peroxidation products form covalent adducts with pyruvate kinase and inhibit its activity in vitro and in breast cancer cells

Bebiana Costa Sousa, Tanzim Ahmed, William L. Dann, Jed Ashman, Alexandre Guy, Thierry Durand, Andrew R Pitt, Corinne M Spickett

Research output: Contribution to journalArticle

Abstract

Pyruvate kinase catalyses the last step in glycolysis and has been suggested to contribute to the regulation of aerobic glycolysis in cancer cells. It can be inhibited by oxidation of cysteine residues in vitro and in vivo, which is relevant to the more pro-oxidant state in cancer and proliferating tissues. These conditions also favour lipid peroxidation and the formation of electrophilic fragmentation products, including short-chain aldehydes that can covalently modify proteins. However, as yet few studies have investigated their interactions with pyruvate kinase, so we investigated the effects of three different aldehydes, acrolein, malondialdehyde and 4-hydroxy-2(E)-hexenal (HHE), on the structure and activity of the enzyme. Analysis by LC-MS/MS showed unique modification profiles for each aldehyde, but Cys152, Cys423 and Cys474 were the residues most susceptible to electrophilic modification. Analysis of enzymatic activity under these conditions showed that acrolein was the strongest inhibitor, and at incubation times longer than 2 h, pathophysiological concentrations induced significant effects. Treatment of MCF-7 cells with the aldehydes caused similar losses of pyruvate kinase activity to those observed in vitro, and at lower concentrations than those required to cause cell death, with time and dose-dependent effects; acrolein adducts on Cys152 and Cys358 were detected. Cys358 and Cys474 are located at or near the allosteric or active sites, and formation of adducts on these residues probably contributes to loss of activity at low treatment concentrations. This study provides the first detailed analysis of the structure-activity relationship of C3 and C6 aldehydes with pyruvate kinase, and suggests that reactive short-chain aldehydes generated in diseases with an oxidative aetiology or from environmental exposure such as smoking could be involved in the metabolic alterations observed in cancer cells, through alteration of pyruvate kinase activity.

Original languageEnglish
Pages (from-to)223-233
Number of pages11
JournalFree Radical Biology and Medicine
Volume144
Early online date5 Jun 2019
DOIs
Publication statusPublished - 20 Nov 2019

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Pyruvate Kinase
Aldehydes
Lipid Peroxidation
Cells
Breast Neoplasms
Acrolein
Lipids
Glycolysis
Allosteric Site
Neoplasms
MCF-7 Cells
Environmental Exposure
Cell death
Structure-Activity Relationship
Malondialdehyde
Cysteine
In Vitro Techniques
Cause of Death
Reactive Oxygen Species
Catalytic Domain

Bibliographical note

© 2019 The Authors. Published by Elsevier Inc. CC BY-NC-ND.

Funding: European Union’s Horizon 2020 research and innovation programme under the Marie Sklowdowska-Curie grant agreement number 675132.

Keywords

  • 4-Hydroxy-2-hexenal
  • Acrolein
  • Lipoxidation
  • Malondialdehyde
  • Mass spectrometry
  • Warburg effect

Cite this

Costa Sousa, Bebiana ; Ahmed, Tanzim ; Dann, William L. ; Ashman, Jed ; Guy, Alexandre ; Durand, Thierry ; Pitt, Andrew R ; Spickett, Corinne M. / Short-chain lipid peroxidation products form covalent adducts with pyruvate kinase and inhibit its activity in vitro and in breast cancer cells. In: Free Radical Biology and Medicine. 2019 ; Vol. 144. pp. 223-233.
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Short-chain lipid peroxidation products form covalent adducts with pyruvate kinase and inhibit its activity in vitro and in breast cancer cells. / Costa Sousa, Bebiana; Ahmed, Tanzim; Dann, William L.; Ashman, Jed; Guy, Alexandre; Durand, Thierry; Pitt, Andrew R; Spickett, Corinne M.

In: Free Radical Biology and Medicine, Vol. 144, 20.11.2019, p. 223-233.

Research output: Contribution to journalArticle

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T1 - Short-chain lipid peroxidation products form covalent adducts with pyruvate kinase and inhibit its activity in vitro and in breast cancer cells

AU - Costa Sousa, Bebiana

AU - Ahmed, Tanzim

AU - Dann, William L.

AU - Ashman, Jed

AU - Guy, Alexandre

AU - Durand, Thierry

AU - Pitt, Andrew R

AU - Spickett, Corinne M

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