The maternal microbiome promotes placental development in mice

Author:

Pronovost Geoffrey N.,Telang Sahil S.,Chen Angela S.,Coley Elena J.L.,Vuong Helen E.,Williams Drake W.,Yu Kristie B.,Rendon Tomiko K.,Paramo Jorge,Kim Reuben H.,Hsiao Elaine Y.

Abstract

AbstractThe maternal microbiome is an important regulator of gestational health, but how it impacts the placenta as the interface between mother and fetus remains unexplored. Here we show that the maternal gut microbiota supports placental development in mice. Depletion of the maternal gut microbiota restricts placental growth and impairs feto-placental vascularization. The maternal gut microbiota modulates metabolites in the maternal and fetal circulation. Short-chain fatty acids (SCFAs) stimulate angiogenesis-related tube formation by endothelial cells and prevent abnormalities in placental vascularization in microbiota-deficient mice. Furthermore, in a model of maternal malnutrition, gestational supplementation with SCFAs prevents placental growth restriction and vascular insufficiency. These findings highlight the importance of host-microbial symbioses during pregnancy and reveal that the maternal gut microbiome promotes placental growth and vascularization in mice.

Publisher

Cold Spring Harbor Laboratory

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