TY - JOUR KW - Organogenesis KW - Systems analysis AU - Johain R. Ounadjela AU - Ke Zhang AU - Koseki J. Kobayashi-Kirschvink AU - Kang Jin AU - Andrew J. C. Russell AU - Andreas I. Lackner AU - Claire Callahan AU - Francesca Viggiani AU - Kushal K. Dey AU - Karthik Jagadeesh AU - Theresa Maxian AU - Anna-Maria Prandstetter AU - Naeem Nadaf AU - Qiyu Gong AU - Ruth Raichur AU - Morgan L. Zvezdov AU - Mingyang Hui AU - Mattew Simpson AU - Xinwen Liu AU - Wei Min AU - Martin Knöfler AU - Fei Chen AU - Sandra Haider AU - Jian Shu AB - Successful pregnancy relies directly on the placenta’s complex, dynamic, gene-regulatory networks. Disruption of this vast collection of intercellular and intracellular programs leads to pregnancy complications and developmental defects. In the present study, we generated a comprehensive, spatially resolved, multimodal cell census elucidating the molecular architecture of the first trimester human placenta. We utilized paired single-nucleus (sn)ATAC (assay for transposase accessible chromatin) sequencing and RNA sequencing (RNA-seq), spatial snATAC-seq and RNA-seq, and in situ sequencing and hybridization mapping of transcriptomes at molecular resolution to spatially reconstruct the joint epigenomic and transcriptomic regulatory landscape. Paired analyses unraveled intricate tumor-like gene expression and transcription factor motif programs potentially sustaining the placenta in a hostile uterine environment; further investigation of gene-linked cis-regulatory elements revealed heightened regulatory complexity that may govern trophoblast differentiation and placental disease risk. Complementary spatial mapping techniques decoded these programs within the placental villous core and extravillous trophoblast cell column architecture while simultaneously revealing niche-establishing transcriptional elements and cell–cell communication. Finally, we computationally imputed genome-wide, multiomic single-cell profiles and spatially characterized the placental chromatin accessibility landscape. This spatially resolved, single-cell multiomic framework of the first trimester human placenta serves as a blueprint for future studies on early placental development and pregnancy. BT - Nature Medicine DA - 2024-11-20 DO - 10.1038/s41591-024-03073-9 LA - en N2 - Successful pregnancy relies directly on the placenta’s complex, dynamic, gene-regulatory networks. Disruption of this vast collection of intercellular and intracellular programs leads to pregnancy complications and developmental defects. In the present study, we generated a comprehensive, spatially resolved, multimodal cell census elucidating the molecular architecture of the first trimester human placenta. We utilized paired single-nucleus (sn)ATAC (assay for transposase accessible chromatin) sequencing and RNA sequencing (RNA-seq), spatial snATAC-seq and RNA-seq, and in situ sequencing and hybridization mapping of transcriptomes at molecular resolution to spatially reconstruct the joint epigenomic and transcriptomic regulatory landscape. Paired analyses unraveled intricate tumor-like gene expression and transcription factor motif programs potentially sustaining the placenta in a hostile uterine environment; further investigation of gene-linked cis-regulatory elements revealed heightened regulatory complexity that may govern trophoblast differentiation and placental disease risk. Complementary spatial mapping techniques decoded these programs within the placental villous core and extravillous trophoblast cell column architecture while simultaneously revealing niche-establishing transcriptional elements and cell–cell communication. Finally, we computationally imputed genome-wide, multiomic single-cell profiles and spatially characterized the placental chromatin accessibility landscape. This spatially resolved, single-cell multiomic framework of the first trimester human placenta serves as a blueprint for future studies on early placental development and pregnancy. PY - 2024 SP - 1 EP - 14 T2 - Nature Medicine TI - Spatial multiomic landscape of the human placenta at molecular resolution UR - https://www.nature.com/articles/s41591-024-03073-9 Y2 - 2024-11-26 SN - 1546-170X ER -