Abstract
The epithelial to mesenchymal transition (EMT) in endometrial epithelial and trophectoderm cells is essential for the progression of embryo implantation and its impairment could cause implantation failure. Therefore, EMT should be tightly regulated in both embryonic and endometrial cells during implantation. Studies reported the involvement of numerous factors in EMT regulation, including hormones, growth factors, transcription factors, microRNAs, aquaporins (AQPs), and ion channels. These factors act through different signaling pathways to affect the expression of epithelial and mesenchymal markers as well as the cellular cytoskeleton. Although the mechanisms involved in cancer cell EMT have been well studied, little is known about EMT during embryo implantation. Therefore, we comprehensively reviewed different factors that regulate the EMT, a key event required for the conceptus implantation to the endometrium.
Summary sentence: Abnormal epithelial-mesenchymal transition (EMT) process within endometrial epithelial cells (EECs) or trophoblast cells can cause implantation failure. This process is regulated by various factors. Thus, the objective of this review was to summarize the effective factors on the EMT process during implantation.
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Study design: Farnaz Oghbaei, Amir Fattahi; Drafting manuscript: Reza Zarezadeh, Davoud Jafari-Gharabaghlou, Minoo Ranjbar; Revising manuscript content: Farnaz Oghbaei, Mohammad Nouri; Approving final version of manuscript: Amir Fattahi, Kazuhiko Imakawa.
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Oghbaei, F., Zarezadeh, R., Jafari-Gharabaghlou, D. et al. Epithelial-mesenchymal transition process during embryo implantation. Cell Tissue Res 388, 1–17 (2022). https://doi.org/10.1007/s00441-021-03574-w
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DOI: https://doi.org/10.1007/s00441-021-03574-w