Dr. Mansi Srivastava is Professor of Organismic and Evolutionary Biology at Harvard University and Curator of Invertebrate Zoology at the Harvard Museum of Comparative Zoology. Her lab uses distantly related species to study evolution and regeneration. She talks about establishing Hofstenia miamia, or the three-banded panther worm, as a model system. She also discusses her lab's work on adult stem cell lineage tracing and whole-body regeneration in Hofstenia, as well as her scientific outreach efforts.

Drs. Dina Radenkovic and Bruna Paulsen are Co-Founder & CEO and VP of Manufacturing and Therapeutic development at Gameto, a biotech company developing treatment solutions to improve women's reproductive health. Their lead platform, Fertilo, uses ovarian support cells to mature oocytes outside of the body with the goal of making IVF and egg freezing shorter, safer, and more effective.

Dr. Meritxell Huch is a Scientific Director at the Max Planck Institute of Molecular Cell Biology and Genetics and an Honorary Professor at the Technical University of Dresden. Her research focuses on liver and pancreas organoid models.  She discusses a protocol for liver mesenchyme and ductal cell organoid co-culture and generating bipotent stem cells from the liver. She also tells her story of moving throughout Europe to pursue her scientific passions.

Dr. Samantha Morris is an Associate Professor of Medicine at Brigham and Women's Hospital and Associate Professor of Systems Biology at Harvard Medical School. She talks about dissecting and manipulating the genetic pathways that regulate cell identity. She discusses tools to measure cell fate transitions and incorporating in silico and in vitro experiments.

Dr. Alfonso Martinez Arias is the CREA Research Professor in the Department of Systems Bioengineering of the Universitat Pompeu Fabra in Barcelona. He talks about his path to developmental biology research and developing gastruloids to model human development. He also discusses standards for embryo models and his recent research on hematopoiesis.

Dr. Behzad Yeganeh is an Associate Scientist at the Children's Hospital of Eastern Ontario Research Institute and the University of Ottawa. His work focuses on lung development and injury. He talks about neonatal lung diseases and the mechanisms that regulate autophagy and apoptosis.

Dr. Dmitriy Sheyn is an Associate Professor in the Department of Orthopedics and Regenerative Medicine Institute at Cedars-Sinai Medical Center. His lab focuses on the development of stem cell therapies for multiple musculoskeletal disorders caused by acute injuries and aging. He talks about ways to model disc degeneration and tendon injuries. He also discuses his lab's work on tendon differentiation and the mechanisms of low back pain.

Dr. Ludovic Vallier is the W3 Einstein Strategic Professor for Stem Cells in Regenerative Therapies at the Berlin Institute of Health and a Max Planck Fellow at the Max Planck Institute for Molecular Genetics. His lab uses stem cells to model embryonic development in vitro and to produce liver cells with an interest for cell therapy. He talks about modeling non-alcoholic fatty liver disease and his lab's pivot to SARS-CoV-2 research early in the pandemic. He also discusses how iPSCs could be used to regenerate the liver after injury.

Dr. Ziyuan Guo is an Assistant Professor of Pediatrics at the Center for Stem Cell & Organoid Medicine at Cincinnati Children's Hospital. He talks about in vivo reprogramming and cell and gene therapy in neurodevelopmental and neurodegenerative disorders. He also discusses assembloids to model the blood-brain barrier and strategies for organoid vascularization.

Dr. Irving Weissman is the Virginia and Daniel Ludwig Professor of Clinical Cancer Research and Professor of Pathology and Developmental Biology at Stanford University. Dr. Weissman was the first scientist to identify and isolate mammalian blood-forming stem cells in mice, and his work has contributed to the understanding of how a single hematopoietic stem cell can give rise to specialized blood cells. He talks about developing new treatments for metastatic breast cancer and severe combined immunodeficiency. He also discusses myeloid bias in aging and strategies for commercializing new therapies.