» Articles » PMID: 33291653

Additive Effects of Omega-3 Fatty Acids and Thiazolidinediones in Mice Fed a High-Fat Diet: Triacylglycerol/Fatty Acid Cycling in Adipose Tissue

Abstract

Long-chain n-3 polyunsaturated fatty acids (Omega-3) and anti-diabetic drugs thiazolidinediones (TZDs) exhibit additive effects in counteraction of dietary obesity and associated metabolic dysfunctions in mice. The underlying mechanisms need to be clarified. Here, we aimed to learn whether the futile cycle based on the hydrolysis of triacylglycerol and re-esterification of fatty acids (TAG/FA cycling) in white adipose tissue (WAT) could be involved. We compared Omega-3 (30 mg/g diet) and two different TZDs-pioglitazone (50 mg/g diet) and a second-generation TZD, MSDC-0602K (330 mg/g diet)-regarding their effects in C57BL/6N mice fed an obesogenic high-fat (HF) diet for 8 weeks. The diet was supplemented or not by the tested compound alone or with the two TZDs combined individually with Omega-3. Activity of TAG/FA cycle in WAT was suppressed by the obesogenic HF diet. Additive effects in partial rescue of TAG/FA cycling in WAT were observed with both combined interventions, with a stronger effect of Omega-3 and MSDC-0602K. Our results (i) supported the role of TAG/FA cycling in WAT in the beneficial additive effects of Omega-3 and TZDs on metabolism of diet-induced obese mice, and (ii) showed differential modulation of WAT gene expression and metabolism by the two TZDs, depending also on Omega-3.

Citing Articles

Omega-3 fatty acid regulation of lipoprotein lipase and FAT/CD36 and its impact on white adipose tissue lipid uptake.

McTavish P, Mutch D Lipids Health Dis. 2024; 23(1):386.

PMID: 39567971 PMC: 11580630. DOI: 10.1186/s12944-024-02376-7.


Omega-3 PUFAs prevent bone impairment and bone marrow adiposity in mouse model of obesity.

Benova A, Ferencakova M, Bardova K, Funda J, Prochazka J, Spoutil F Commun Biol. 2023; 6(1):1043.

PMID: 37833362 PMC: 10575870. DOI: 10.1038/s42003-023-05407-8.


Delta-6 desaturase (Fads2) deficiency alters triacylglycerol/fatty acid cycling in murine white adipose tissue.

Wang C, Hucik B, Sarr O, Brown L, Wells K, Brunt K J Lipid Res. 2023; 64(6):100376.

PMID: 37085033 PMC: 10323924. DOI: 10.1016/j.jlr.2023.100376.


Loss of UCP1 function augments recruitment of futile lipid cycling for thermogenesis in murine brown fat.

Oeckl J, Janovska P, Adamcova K, Bardova K, Brunner S, Dieckmann S Mol Metab. 2022; 61:101499.

PMID: 35470094 PMC: 9097615. DOI: 10.1016/j.molmet.2022.101499.


Adipose tissue-specific ablation of PGC-1β impairs thermogenesis in brown fat.

Funda J, Villena J, Bardova K, Adamcova K, Irodenko I, Flachs P Dis Model Mech. 2022; 15(4).

PMID: 35466996 PMC: 9066513. DOI: 10.1242/dmm.049223.


References
1.
McCommis K, Hodges W, Brunt E, Nalbantoglu I, McDonald W, Holley C . Targeting the mitochondrial pyruvate carrier attenuates fibrosis in a mouse model of nonalcoholic steatohepatitis. Hepatology. 2016; 65(5):1543-1556. PMC: 5397348. DOI: 10.1002/hep.29025. View

2.
Fukunaga T, Zou W, Rohatgi N, Colca J, Teitelbaum S . An insulin-sensitizing thiazolidinedione, which minimally activates PPARγ, does not cause bone loss. J Bone Miner Res. 2014; 30(3):481-8. PMC: 4472363. DOI: 10.1002/jbmr.2364. View

3.
Bederman I, Foy S, Chandramouli V, Alexander J, Previs S . Triglyceride synthesis in epididymal adipose tissue: contribution of glucose and non-glucose carbon sources. J Biol Chem. 2008; 284(10):6101-8. PMC: 2649080. DOI: 10.1074/jbc.M808668200. View

4.
Kuda O, Stankova B, Tvrzicka E, Hensler M, Jelenik T, Rossmeisl M . Prominent role of liver in elevated plasma palmitoleate levels in response to rosiglitazone in mice fed high-fat diet. J Physiol Pharmacol. 2010; 60(4):135-40. View

5.
Colca J, Tanis S, McDonald W, Kletzien R . Insulin sensitizers in 2013: new insights for the development of novel therapeutic agents to treat metabolic diseases. Expert Opin Investig Drugs. 2013; 23(1):1-7. DOI: 10.1517/13543784.2013.839659. View