TY - JOUR TI - The effects of aging on molecular modulators of human embryo implantation AU - Ntostis, Panagiotis AU - Swanson, Grace AU - Kokkali, Georgia AU - Iles, AU - David AU - Huntriss, John AU - Pantou, Agni AU - Tzetis, Maria AU - Pantos, AU - Konstantinos AU - Picton, Helen M. AU - Krawetz, Stephen A. AU - Miller, AU - David JO - ISCIENCE PY - 2021 VL - 24 TODO - 7 SP - null PB - Cell Press SN - null TODO - 10.1016/j.isci.2021.102751 TODO - null TODO - Advancing age has a negative impact on female fertility. As implantation rates decline during the normal maternal life course, age-related, embryonic factors are altered and our inability to monitor these factors in an unbiased genome-wide manner in vivo has severely limited our understanding of early human embryo development and implantation. Our high-throughput methodology uses trophectoderm samples representing the full spectrum of maternal reproductive ages with embryo implantation potential examined in relation to trophectoderm transcriptome dynamics and reproductive maternal age. Potential embryo-endometrial interactions were tested using trophectoderm sampled from young women, with the receptive uterine environment representing the most `fertile' environment for successful embryo implantation. Potential roles for extracellular exosomes, embryonic metabolism and regulation of apoptosis were revealed. These biomarkers are consistent with embryo-endometrial crosstalk/developmental competency, serving as a mediator for successful implantation. Our data opens the door to developing a diagnostic test for predicting implantation success in women undergoing fertility treatment. ER -