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Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk

ABSTRACT: Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk

PROVIDER: PRJNA780973 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16960908.fastq.gz	Fastqsanger.gz
	SRR16960909.fastq.gz	Fastqsanger.gz
	SRR16960910.fastq.gz	Fastqsanger.gz
	SRR16960911.fastq.gz	Fastqsanger.gz
	SRR16960912.fastq.gz	Fastqsanger.gz

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Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk

Project description:Birth is the first metabolic challenge that cardiomyocytes need to overcome as they reshape their fuel preference from glucose to fatty acids (FA) to optimize energy production in postnatal life. This adaptation is partly triggered by drastic post-partum environmental changes, yet the molecular players responsible for orchestrating cardiomyocyte maturation remain unknown. Here, we discover that maternal metabolite γ-linolenic acid (GLA) support this transition. Specifically, colostrum GLA acts as an agonist for Retinoid X Receptors (RXR), a family of ligand-activated transcription factors expressed from embryonic life in cardiomyocytes. Mice lacking RXR in embryonic cardiomyocytes showed an aberrant chromatin landscape that prevented the induction of RXR-dependent FA metabolism genes (mtFAH signature). This results in a defective metabolic transition with blunted mitochondrial lipid-derived energy production and enhanced glucose consumption, which ultimately leads to perinatal lethal cardiac dysfunction. In vitro GLA supplementation in cardiomyocytes induced the expression of mtFAH signature in a RXR-dependent manner. Altogether, our study uncovers GLA/RXR axis as the fundamental mechanism by which maternal physiology commands metabolic functioning in perinatal hearts. This SuperSeries is composed of the SubSeries listed below.

2023-02-15 | GSE188998 | GEO

Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [ATAC-seq]

Project description:Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [ATAC-seq]

| PRJNA780976 | ENA

Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [RXR ChIP-seq]

Project description:Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [RXR ChIP-seq]

| PRJNA780967 | ENA

Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [H3K27ac ChIP-seq]

Project description:Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [H3K27ac ChIP-seq]

| PRJNA780975 | ENA

Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [ATAC-seq]

Project description:The goal of this study was to compare the epigenetic landscape of perinatal hearts of cardiomyocyte-specific RXRab-deficient (edKO) and WT mice, to identify differential chromatin dynamics that are controlled by TF RXRa and RXRb.

2023-02-15 | GSE188997 | GEO

Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [H3K27ac ChIP-seq]

Project description:The goal of this study was to compare the cistrome profile of H3K27ac (ChIP-seq) of perinatal hearts of cardiomyocyte-specific RXRab-deficient and WT mice, in order to identify genomic regions that are differentially activated by TF RXRa and RXRb.

2023-02-15 | GSE188996 | GEO

Metabolic maturation of neonatal hearts driven by γ-linolenic acid in maternal milk [RXR ChIP-seq]

Project description:The goal of this study was to compare the cistrome profile of RXR (ChIP-seq) of perinatal hearts of cardiomyocyte-specific RXRab-deficient and WT mice, in order to identify genomic regions which are directly controlled by TF RXRa and RXRb.

2023-02-15 | GSE188994 | GEO

γ-Linolenic acid in maternal milk drives cardiac metabolic maturation

Project description:The goal of this study was to compare the transcriptome profile (RNA-seq) of perinatal hearts of cardiomyocyte-specific RXRab-deficient (edKO) and WT mice, to identify genes that are controlled by the expression of the TF RXRa and RXRb.

2023-02-15 | GSE188991 | GEO

γ-Linolenic acid in maternal milk drives cardiac metabolic maturation

Project description:γ-Linolenic acid in maternal milk drives cardiac metabolic maturation

| PRJNA780956 | ENA

Site-specific N-glycan Analysis of Neonatal Mouse Hearts

Project description:The heart of a newborn mouse has an exceptional capacity to regenerate from myocardial injury but lose it after a week of life, which has been utilized as a valuable model to explore the cues for heart regeneration. More and more researches indicated that glycoprotein played an important role in cardiac regeneration. Elucidating the glycosylation processes associated with heart regeneration will be beneficial for the molecular mechanism studies of heart regeneration as well as discovery of potential therapeutic strategies for human cardiac diseases. In this work, an integrated glycoproteomic and proteomic analysis were performed to investigate the differences in glycoprotein abundances and site-specific glycosylation occupancy between neonatal day 1 (P1) and day 7 (P7) of mouse hearts. The intact glycoepeptides were enriched and identified in both P1 and P7 hearts. To screen for differentially regulated glycoproteins, we compared the expression levels of intact glycopeptides between P1 and P7 hearts using label free quantification. Eventually, the glycosylation occupancy of site-specific N-glycans were obtained by comparing the alterations of intact glycopeptides with their corresponding protein expression levels obtained from global proteomic analysis. These altered glycosylation patterns among proteins between P1 and P7 mouse hearts have a significant potential to aid our understanding of the regenerative capacity loss in neonatal mouse hearts during the first week, thus leading to novel therapeutic approaches to recover the capacity.

2020-05-26 | PXD017139 | Pride

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