Transcriptomics

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Comparison of ITGA2+ trophoblast progenitors to VCT and EVT


ABSTRACT: During pregnancy, trophoblast cells in the placenta are the only fetal cells in direct contact with the maternal blood and decidua. They have many functions, including transport of nutrients and oxygen, remodelling the uterine arteries, and communicating with maternal cells. Despite their importance in development and in the success of pregnancy, little is known about human trophoblast progenitors and their differentiation. We identify a proliferative trophoblast niche at the base of cytotrophoblast cell columns in first trimester placentas that is characterised by integrin α2 (ITGA2) expression. Pulse-chase experiments with 5-Iodo-2′-deoxyuridine (IdU) imply that these cells can contribute to both villous and extravillous lineages. Importantly, these cells can be isolated by ITGA2 using flow cytometry and express genes from both VCT and EVT. Microarray shows that they display a unique gene signature including NOTCH signalling and mesenchymal characteristics. ITGA2 allows for the first time the study of a pure population of trophoblast progenitor cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE106852 | GEO | 2018/03/18

REPOSITORIES: GEO

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