Enrichment of cell cycle pathways in progesterone-treated endometrial organoids of infertile women compared to fertile women.

Purpose: To investigate whether the transcriptome profile differs between progesterone-treated infertile and fertile endometrial organoids.

Methods: Endometrial biopsies were obtained from 14 infertile and seven fertile women, after which organoids were generated from isolated epithelial cells. To mimic the secretory phase, organoids were sequentially treated with 17β-estradiol (E2) and progesterone (P4) and subjected to RNA sequencing.