γ-Linolenic acid in maternal milk drives cardiac metabolic maturation

© 2023. The Author(s), under exclusive licence to Springer Nature Limited..

Birth presents a metabolic challenge to cardiomyocytes as they reshape fuel preference from glucose to fatty acids for postnatal energy production1,2. This adaptation is triggered in part by post-partum environmental changes3, but the molecules orchestrating cardiomyocyte maturation remain unknown. Here we show that this transition is coordinated by maternally supplied γ-linolenic acid (GLA), an 18:3 omega-6 fatty acid enriched in the maternal milk. GLA binds and activates retinoid X receptors4 (RXRs), ligand-regulated transcription factors that are expressed in cardiomyocytes from embryonic stages. Multifaceted genome-wide analysis revealed that the lack of RXR in embryonic cardiomyocytes caused an aberrant chromatin landscape that prevented the induction of an RXR-dependent gene expression signature controlling mitochondrial fatty acid homeostasis. The ensuing defective metabolic transition featured blunted mitochondrial lipid-derived energy production and enhanced glucose consumption, leading to perinatal cardiac dysfunction and death. Finally, GLA supplementation induced RXR-dependent expression of the mitochondrial fatty acid homeostasis signature in cardiomyocytes, both in vitro and in vivo. Thus, our study identifies the GLA-RXR axis as a key transcriptional regulatory mechanism underlying the maternal control of perinatal cardiac metabolism.

Errataetall:

ErratumIn: Nature. 2023 Jul;619(7968):E24. - PMID 37322272

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:618

Enthalten in:

Nature - 618(2023), 7964 vom: 24. Juni, Seite 365-373

Sprache:

Englisch

Beteiligte Personen:

Paredes, Ana [VerfasserIn]
Justo-Méndez, Raquel [VerfasserIn]
Jiménez-Blasco, Daniel [VerfasserIn]
Núñez, Vanessa [VerfasserIn]
Calero, Irene [VerfasserIn]
Villalba-Orero, María [VerfasserIn]
Alegre-Martí, Andrea [VerfasserIn]
Fischer, Thierry [VerfasserIn]
Gradillas, Ana [VerfasserIn]
Sant'Anna, Viviane Aparecida Rodrigues [VerfasserIn]
Were, Felipe [VerfasserIn]
Huang, Zhiqiang [VerfasserIn]
Hernansanz-Agustín, Pablo [VerfasserIn]
Contreras, Carmen [VerfasserIn]
Martínez, Fernando [VerfasserIn]
Camafeita, Emilio [VerfasserIn]
Vázquez, Jesús [VerfasserIn]
Ruiz-Cabello, Jesús [VerfasserIn]
Area-Gómez, Estela [VerfasserIn]
Sánchez-Cabo, Fátima [VerfasserIn]
Treuter, Eckardt [VerfasserIn]
Bolaños, Juan Pedro [VerfasserIn]
Estébanez-Perpiñá, Eva [VerfasserIn]
Rupérez, Francisco Javier [VerfasserIn]
Barbas, Coral [VerfasserIn]
Enríquez, José Antonio [VerfasserIn]
Ricote, Mercedes [VerfasserIn]

Links:

Volltext

Themen:

78YC2MAX4O
Chromatin
Fatty Acids
Gamma-Linolenic Acid
Glucose
IY9XDZ35W2
Journal Article
Retinoid X Receptors
Transcription Factors

Anmerkungen:

Date Completed 13.06.2023

Date Revised 27.11.2023

published: Print-Electronic

ErratumIn: Nature. 2023 Jul;619(7968):E24. - PMID 37322272

Citation Status MEDLINE

doi:

10.1038/s41586-023-06068-7

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM357283597