Maternal gut microbiota influences immune activation at the maternal-fetal interface affecting pregnancy outcome

Silvia Giugliano (), Andrea Gatti, Martina Rusin, Tilo Schorn, Silvia Pimazzoni, Michela Calanni-Pileri, Valentina Fraccascia, Sara Carloni and Maria Rescigno ()
Additional contact information
Silvia Giugliano: Pieve Emanuele
Andrea Gatti: IRCCS Humanitas Research Hospital
Martina Rusin: Pieve Emanuele
Tilo Schorn: IRCCS Humanitas Research Hospital
Silvia Pimazzoni: IRCCS Humanitas Research Hospital
Michela Calanni-Pileri: Pieve Emanuele
Valentina Fraccascia: Pieve Emanuele
Sara Carloni: Pieve Emanuele
Maria Rescigno: Pieve Emanuele

Nature Communications, 2025, vol. 16, issue 1, 1-15

Abstract: Abstract Preeclampsia is a leading cause of morbidity and mortality in pregnant women, affecting 5–8% of gestations worldwide. Its development is influenced by maternal immune abnormalities, metabolic disorders, and gut dysbiosis. In this study, we show that gut dysbiosis in pregnant C57BL/6J dams leads to increased fetal resorption, impaired placental development and altered vascularization. These adverse outcomes are associated with key pathological features of preeclampsia, including hypoxia, endoplasmic reticulum (ER) stress and reduction in uterine natural killer (NK) cell numbers. Furthermore, gut dysbiosis significantly perturbs placental carbohydrate metabolism, which impairs NK cell IFN-γ secretion. Notably, glucose supplementation restores placental NK cell function and reduces fetal resorption, suggesting that the observed impairment is reversible and dependent on a lower glycolytic rate. These findings highlight maternal gut microbiota as a key player in carbohydrate metabolism, with a pivotal role in modulating placental immunity and pregnancy outcome. The results provide valuable insights into potential metabolic biomarkers and suggest that targeting the gut microbiota may offer a strategy for preventing preeclampsia.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-58533-8 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-58533-8

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-025-58533-8

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().