CELEBRATING 20 YEARS OF TRANSFORMATIVE STEM CELL RESEARCH
DIVE INTO THE DIGITAL REPORT

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Led by Dr. Donald Kohn and Katelyn Masiuk, the researchers engineered a “viral vector” that would turn on the FoxP3 gene only in regulatory T cells — and not in other types of cells.
Hussein El Kerdi during his 2016 procedure at UCLA. His father, Ali El Kerdi (with cell phone) looks on.
Evangelina Vaccaro received Dr. Kohn’s treatment for bubble baby disease in 2012.
Evangelina Vaccaro (far right), who received Dr. Kohn’s treatment for bubble baby disease in 2012, with her family before her first day of school.
Headshot of Donald Kohn in a lab sitting down
A baby lies in a hospital bed with her mother in a face mask