Two new arrivals

Coco Bland is assisting Brittany Meyer in studying the biology of trophoblast stem cells. Coco is currently a sophomore at John Burroughs School, where she is on the junior varsity tennis and soccer teams. She is an editor and writer for the school yearbook and newspaper. Coco is also an active member in National Charity League (NCL), volunteering over 50 hours and serving as the current president. She also works as an assistant religious school teacher. Coco hopes to continue building skills as a technician that will support her goal of pursuing a career in the medical field. Outside of the lab and school, Coco loves to dance and play with her three goldendoodles!

Olivia Zhang is an undergraduate at Washington University in St. Louis, majoring in Biochemistry and Molecular Biology. During her first year, she worked in the Klechevsky Lab, where she developed foundational experimental skills and explored immunology. She later joined the Theunissen Lab in her sophomore year to pursue her interests in stem cell research and blastoid models. Outside the lab, she enjoys reading, photography, and playing badminton.

Welcome Coco and Olivia!

Welcoming our new postdoc: Dr. Regan Scott

We’re pleased to announce the arrival of our new postdoc, Dr. Regan Scott, from the Michael J. Soares lab at Kansas University Medical Center. Regan received her B.S. from Kansas State University and M.S. in Biomedical Sciences from Kansas City University. During her graduate studies with Professor Soares, Regan studied placental development with a focus on trophoblast stem cell differentiation to the invasive lineage. After receiving her Ph.D. in 2025, she joined the Theunissen lab to continue advancing the field of stem cell and developmental biology. Regan is a strong advocate for scientific research and reproductive health, and in her spare time she enjoys baking, doing puzzles, being outdoors, and spending time with family, friends, and her pets.

Regan, welcome to the team!

Review article in CMLS

Together with Kyoung and Richard, we wrote a review article in Cellular and Molecule Life Sciences on the diverse repertoire of cell fates accessible to naive human pluripotent stem cells. When we first derived these cells over a decade ago, little did we know that they harbored such broad developmental potential and would ultimately become a cornerstone of human embryo models.

Check it out in CMLS: https://tinyurl.com/3td35h47

News & Views in Nature

Kong and Thor wrote a News & Views in Nature on a groundbreaking stem-cell-based monkey embryo model that offers a continuous window on early primate development, from the pre-implantation stage all the way to late gastrulation, when the basic body plan is established and primitive organs start to form. This system offers a powerful in vitro platform for dissecting the dynamic, stepwise processes that define early embryogenesis.

Congratulations to Zhen Liu and colleagues at the Institute of Neuroscience (ION), Chinese Academy of Sciences, Shanghai for their remarkable achievement.

Take a look at our News & Views using the following link: bit.ly/4iGpuj6.

The original study from Zhen Liu”s lab: bit.ly/4pMt8Kl