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Engineered Womb Lining Supports Human Embryo Implantation in Lab, Revealing Early Pregnancy Signals

The model offers a tool to investigate implantation failure with potential to test IVF‑supporting interventions.

Overview

  • Babraham Institute and Stanford researchers built a 3D endometrium from donated epithelial and stromal cells in a hydrogel scaffold that mimics tissue architecture and hormone responsiveness.
  • Donated IVF embryos adhered, invaded, secreted hCG, and progressed to post‑implantation stages up to the 12–14 day research limit within the model.
  • Single‑cell profiling at implantation sites mapped molecular communication at the embryo–endometrium interface, revealing signals that coordinate early development.
  • Chemical blockade of a specific signaling pathway caused severe defects in placenta‑forming tissue, demonstrating the system’s use for causal testing.
  • Separate teams in China reported comparable models and drug screens using patient‑derived organoids, identifying candidate compounds that increased implantation in recurrent implantation failure samples.