Susana M. Chuva de Sousa Lopes, PhD is Associate Professor in the Dept. of Anatomy and Embryology at the Leiden University Medical Center, Leiden the Netherlands. She was appointed Guest Professor at the Dept. Reproductive Medicine, University Ghent, Belgium in 2013. Her group focuses on investigating the developmental trajectories of human organs and tissues, with a particular interest for the germline and urogenital organs. Based on the transcriptional profiles of over a hundred different human (fetal) organs, including the kidney and gonads, her group has developed a mathematical algorithm called Keygenes to facilitate the comparison of transcriptional data from differentiated human pluripotent stem cells or organoids to their in vivo counterparts. Her group currently investigates the composition dynamics of the human fetal and adult ovary at the single-cell level and is developing strategies to mature oocytes in vitro in artificial follicles. Chuva de Sousa Lopes is currently funded by an ERC Consolidator and a prestigious Dutch-grant VICI. She is member of the Committee of National Representatives (Netherlands) and has become coordinator of the Special Interest Group “Stem Cells” of the European Society of Human Reproduction and Embryology (ESHRE).