Gail Roberta Martin, a pioneering American developmental biologist whose groundbreaking work laid the foundation for modern stem cell research, passed away in 2026. Born on April 2, 1944, in New York City, Dr. Martin dedicated her illustrious career to unraveling the mysteries of embryonic development and cellular pluripotency. Her contributions profoundly shaped our understanding of how life begins and how cells differentiate, leaving an indelible mark on regenerative medicine.

Dr. Martin earned her Bachelor of Arts in Zoology from the University of Wisconsin–Madison in 1964, followed by a Ph.D. in Molecular Biology from the University of California, Berkeley, in 1971. Her early research, including postdoctoral work with Martin Evans in London, focused on pluripotent mouse teratoma cells. This critical period set the stage for her most celebrated discovery.

In 1981, while at the University of California, San Francisco (UCSF), Dr. Martin achieved a scientific milestone by isolating pluripotent stem cells from normal mouse embryos and, in doing so, coined the now-ubiquitous term "embryonic stem cells." This seminal achievement provided a powerful tool for studying early development and opened new avenues for therapeutic applications. Her laboratory further elucidated the crucial roles of fibroblast growth factors (FGFs) in vertebrate organogenesis, demonstrating their precise signaling in the development of limbs and other organs.

Throughout her distinguished career at UCSF, where she became a professor emerita, Dr. Martin garnered numerous accolades for her scientific excellence. She was elected to the US National Academy of Sciences in 2002, received the prestigious Pearl Meister Greengard Prize in 2007, and was made a Fellow of the Royal Society in 2015. Her leadership extended to serving as President of the Society for Developmental Biology from 2006 to 2007. Gail R. Martin's legacy is one of profound scientific insight, mentorship, and a relentless pursuit of knowledge that continues to inspire generations of biologists.