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Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome. [human]

ABSTRACT: Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome. [human]

PROVIDER: PRJNA915346 | ENA |

REPOSITORIES: ENA

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Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome. [human]

Project description:Mitochondria are central for cellular metabolism and energy supply. Barth Syndrome (BTHS) is a severe disorder due to dysfunction of the mitochondrial cardiolipin acyl transferase tafazzin. Altered cardiolipin remodeling affects mitochondrial inner membrane organization and function of membrane proteins such as transporters and the oxidative phosphorylation (OXPHOS) system. Here, we describe a mouse model that carries a G197V exchange in tafazzin, corresponding to BTHS patient. TAZG197V mice recapitulate disease-specific pathology including cardiac dysfunction and reduced oxidative phosphorylation. We show that mutant mitochondria display defective fatty acid driven oxidative phosphorylation due to reduced levels of carnitine palmitoyl transferases. A metabolic switch in ATP production from OXPHOS to glycolysis is apparent in mouse heart and patient iPS cell-derived cardiomyocytes. An increase in glycolytic ATP production inactivates AMPK causing altered metabolic signaling in TAZG197V. Treatment of mutant cells with AMPK activator reestablishes fatty acid driven OXPHOS and protects mice against cardiac failure.

2023-07-15 | GSE221663 | GEO

Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome.[mouse]

2023-07-15 | GSE221662 | GEO

Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome.

Project description:Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome.

| PRJNA915343 | ENA

Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome.[mouse]

Project description:Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome.[mouse]

| PRJNA915345 | ENA

Metabolic switch from fatty acid oxidation to glycolysis in knock-in mouse model of Barth Syndrome.

Project description:Mitochondria are central for cellular metabolism and energy supply. Barth Syndrome (BTHS) is a severe disorder, due to dysfunction of the mitochondrial cardiolipin acyl transferase tafazzin. Altered cardiolipin remodeling affects mitochondrial inner membrane organization and function of membrane proteins such as transporters and the oxidative phosphorylation (OXPHOS) system. Here, we describe a mouse model that carries a G197V exchange in tafazzin, corresponding to BTHS patient. TAZG197V mice recapitulate disease-specific pathology including cardiac dysfunction and reduced oxidative phosphorylation. We show that mutant mitochondria display defective fatty acid driven oxidative phosphorylation due to reduced levels of carnitine palmitoyl transferases. A metabolic switch in ATP production from OXPHOS to glycolysis is apparent in mouse heart and patient iPSC cell-derived cardiomyocytes. An increase in glycolytic ATP production inactivates AMPK causing altered metabolic signaling in TAZG197V. Treatment of mutant cells with AMPK activator reestablishes fatty acid driven OXPHOS and protects mice against cardiac failure.

2023-06-07 | MSV000092116 | MassIVE

Nuclear Receptor Co-repressor NCoR1 governs immune-tolerance in conventional dendritic cells by fine-tuning glycolysis and fatty acid oxidation

Project description:In this study, we focused on demonstrating the metabolic aspect of NCoR1 in the regulation of dendritic cells (DCs) functionality. We report that NCoR1 deficient tolerogenic DCs meet their anabolic requirements through enhanced glycolysis and OxPhos, supported by FAO-driven oxygen consumption. Furthermore, individual and dual inhibition of glycolysis through HIF-1α inhibitor (KC7F2) and fatty acid oxidation through CPT1 inhibitor (etomoxir) significantly impaired the secretion of tolerogenic cytokines. To validate the same at the global mRNA level we did bulk RNA-seq to determine the differentially expressed genes in control and NCoR1 KD 6h CpG activated DCs with and without inhibitor treatment.

2024-01-01 | E-MTAB-12066 | biostudies-arrayexpress

Metabolic switch from fatty acid oxidation to glycolysis in knock-in mouse model of Barth syndrome.

Project description:Mitochondria are central for cellular metabolism and energy supply. Barth syndrome (BTHS) is a severe disorder, due to dysfunction of the mitochondrial cardiolipin acyl transferase tafazzin. Altered cardiolipin remodeling affects mitochondrial inner membrane organization and function of membrane proteins such as transporters and the oxidative phosphorylation (OXPHOS) system. Here, we describe a mouse model that carries a G197V exchange in tafazzin, corresponding to BTHS patients. TAZG197V mice recapitulate disease-specific pathology including cardiac dysfunction and reduced oxidative phosphorylation. We show that mutant mitochondria display defective fatty acid-driven oxidative phosphorylation due to reduced levels of carnitine palmitoyl transferases. A metabolic switch in ATP production from OXPHOS to glycolysis is apparent in mouse heart and patient iPSC cell-derived cardiomyocytes. An increase in glycolytic ATP production inactivates AMPK causing altered metabolic signaling in TAZG197V . Treatment of mutant cells with AMPK activator reestablishes fatty acid-driven OXPHOS and protects mice against cardiac dysfunction.

| S-EPMC10493589 | biostudies-literature

Metabolic reprogramming from fatty acid oxidation to glycolysis in a patient mutation knock-in mouse model of Barth Syndrome.

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-07-15 | GSE221664 | GEO

Metabolic switch from fatty acid oxidation to glycolysis in knock-in mouse model of Barth Syndrome.

Project description:Mitochondria are central for cellular metabolism and energy supply. Barth Syndrome (BTHS) is a severe disorder, due to dysfunction of the mitochondrial cardiolipin acyl transferase tafazzin. Altered cardiolipin remodeling affects mitochondrial inner membrane organization and function of membrane proteins such as transporters and the oxidative phosphorylation (OXPHOS) system. Here, we describe a mouse model that carries a G197V exchange in tafazzin, corresponding to BTHS patients. TAZG197V mice recapitulate disease-specific pathology including cardiac dysfunction and reduced oxidative phosphorylation. We show that mutant mitochondria display defective fatty acid driven oxidative phosphorylation due to reduced levels of carnitine palmitoyl transferases. A metabolic switch in ATP production from OXPHOS to glycolysis is apparent in mouse heart and patient iPSC cell-derived cardiomyocytes. An increase in glycolytic ATP production inactivates AMPK causing altered metabolic signaling in TAZG197V. Treatment of mutant cells with AMPK activator reestablishes fatty acid driven OXPHOS and protects mice against cardiac dysfunction.

| S-SCDT-10_15252-EMMM_202317399 | biostudies-other

Fatty Acid Oxidation and Glycolysis Regulate Skin ECM Homeostasis by Shifting Fibroblasts between Catabolism and Anabolism

Project description:Fatty Acid Oxidation and Glycolysis Regulate Skin ECM Homeostasis by Shifting Fibroblasts between Catabolism and Anabolism

| PRJNA384168 | ENA