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- Title
PIBF1 regulates trophoblast syncytialization and promotes cardiovascular development.
- Authors
Lee, Jong Geol; Yon, Jung-Min; Kim, Globinna; Lee, Seul-Gi; Kim, C-Yoon; Cheong, Seung-A; Kim, Hyun-Yi; Yu, Jiyoung; Kim, Kyunggon; Sung, Young Hoon; Yoo, Hyun Ju; Woo, Dong-Cheol; Rho, Jin Kyung; Ha, Chang Hoon; Pack, Chan-Gi; Oh, Seak Hee; Lim, Joon Seo; Han, Yu Mi; Hong, Eui-Ju; Seong, Je Kyung
- Abstract
Proper placental development in early pregnancy ensures a positive outcome later on. The developmental relationship between the placenta and embryonic organs, such as the heart, is crucial for a normal pregnancy. However, the mechanism through which the placenta influences the development of embryonic organs remains unclear. Trophoblasts fuse to form multinucleated syncytiotrophoblasts (SynT), which primarily make up the placental materno-fetal interface. We discovered that endogenous progesterone immunomodulatory binding factor 1 (PIBF1) is vital for trophoblast differentiation and fusion into SynT in humans and mice. PIBF1 facilitates communication between SynT and adjacent vascular cells, promoting vascular network development in the primary placenta. This process affected the early development of the embryonic cardiovascular system in mice. Moreover, in vitro experiments showed that PIBF1 promotes the development of cardiovascular characteristics in heart organoids. Our findings show how SynTs organize the barrier and imply their possible roles in supporting embryogenesis, including cardiovascular development. SynT-derived factors and SynT within the placenta may play critical roles in ensuring proper organogenesis of other organs in the embryo. The genetic link between placenta function and congenital heart defects has been established, though the cellular mechanisms underlying this connection is less clear. Here they show that PIBF1 regulates syncytiotrophoblast fusion and that loss of PIBF1 also negatively impacts heart development, providing a potential link between the development of these two organs.
- Subjects
CARDIOVASCULAR development; TROPHOBLAST; EMBRYOLOGY; MORPHOGENESIS; CONGENITAL heart disease; HEART development
- Publication
Nature Communications, 2024, Vol 15, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-45647-8