Exercise enhances placental labyrinth trophoblast development by activation of PGC-1α and FNDC5/irisin†

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Placental chorion/labyrinth trophoblasts are energy demanding which is met by the mitochondrial oxidative phosphorylation. Exercise enhances placental development and mitochondrial biogenesis, but the underlying mechanisms remain poorly understood. To address, female C57BL/6 J mice were randomly assigned into two groups: a control group and an exercise (EX) group. All animals were acclimated to treadmill exercise for 1 week before mating, but only the EX group was subjected to daily exercise during pregnancy from embryonic day (E) 1.5 to E16.5. Placenta were collected at E18.5 for biochemical and histochemical analyses, and primary trophoblast cells were isolated from the E18.5 placenta for further analyses. The data showed that exercise during pregnancy promoted the expression of syncytiotrophoblast cell markers, indicating trophoblast cell differentiation, which was closely associated with elevated mitochondrial biogenesis and oxidative metabolism in the E18.5 placenta. In addition, exercise during pregnancy activated peroxisome proliferator-activated receptor γ coactivator-1 α (PGC-1α), which was associated with upregulated placental α-ketoglutarate and the expression of isocitrate dehydrogenases and ten-eleven translocations, facilitating DNA demethylation of the Pgc1a promoter. Furthermore, exercise upregulated fibronectin type III domain containing 5 expression and the secretion of its cleaved form, irisin, which is known to activate PGC-1α. These data suggest that exercise-induced activation of PGC-1α, via epigenetic modifications, is responsible for promoting mitochondrial energy metabolism and chorion/labyrinth trophoblast development.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:110

Enthalten in:

Biology of reproduction - 110(2024), 2 vom: 10. Feb., Seite 355-364

Sprache:

Englisch

Beteiligte Personen:

Chae, Song Ah [VerfasserIn]
Du, Min [VerfasserIn]
Zhu, Mei-Jun [VerfasserIn]
Son, Jun Seok [VerfasserIn]

Links:

Volltext

Themen:

DNA methylation
Exercise
FNDC5 protein, mouse
Fibronectins
Journal Article
Mitochondria
Placenta
Ppargc1a protein, mouse
Pregnancy
Transcription Factors
Trophoblast cell

Anmerkungen:

Date Completed 22.02.2024

Date Revised 22.02.2024

published: Print

Citation Status MEDLINE

doi:

10.1093/biolre/ioad151

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM364265728