ArticleEndocrinology2025
Human Decidual RUNX1 Promotes Angiogenesis and Trophoblast Differentiation by Regulating Extracellular Vesicle Signaling.
Article in Endocrinology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Deciphering the maternal uterine signals that shape placenta development.Reproduction (Cambridge, England) · 2026Review
- Crosstalk of extracellular vesicles in maternal-fetal interaction.Frontiers in cell and developmental biology · 2026Review
- Human Decidual RUNX1 Promotes Angiogenesis and Trophoblast Differentiation by Regulating Extracellular Vesicle Signaling.Endocrinology · 2025Article
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6 authors.
Funding
Abstract
During early pregnancy, human endometrial stromal cells differentiate into secretory decidual cells via a process regulated by ovarian steroid hormones. Decidual cells play a crucial role by secreting various factors that support essential events in forming a functional placenta, including uterine angiogenesis and the differentiation and development of trophoblasts. We previously reported that the conditional ablation of the transcription factor runt-related transcription factor 1 (RUNX1) in the mouse uterus leads to subfertility due to insufficient maternal angiogenesis and impaired trophoblast differentiation. In this study, we examined the role of RUNX1 in facilitating communication mechanisms among human decidual cells and other cell types present in the pregnant uterus. We demonstrate that RUNX1 regulates the conserved hypoxia-inducible factor 2 α-RAB27B pathway in primary human endometrial stromal cells (HESCs) during decidualization, which promotes the secretion of extracellular vesicles (EVs) by these cells. Consequently, the depletion of RUNX1 in HESC led to reduced EV secretion. Mass spectrometry identified several cargo proteins in decidual EVs, including angiopoietin-related protein 2 (ANGPTL2) and IGF2, which could regulate angiogenesis or trophoblast differentiation. We found that RUNX1 directly regulates their expression, resulting in partial changes to these cargoes when it is absent. We observed that delivering EVs lacking ANGPTL2 or IGF2 to human endothelial cells significantly decreased the formation of vascular networks compared to introducing control EVs carrying these factors. Furthermore, adding IGF2-depleted EVs to human trophoblast cells inhibited their differentiation into the extravillous trophoblast lineage. These findings collectively highlight the crucial role of decidual RUNX1 in promoting essential cell-cell interactions for angiogenesis and trophoblast differentiation during placenta formation.
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