• Sana Biotechnology's UP421 demonstrates survival and function of transplanted islet cells in a type 1 diabetes patient without immunosuppression.
• The first-in-human study shows HIP-engineered cells evade immune detection, producing insulin as indicated by increased C-peptide levels.
• MRI scans confirm graft survival 28 days post-transplantation, with no reported safety issues, suggesting potential for a curative T1D treatment.
• These results support the development of Sana's SC451, a stem cell-derived islet cell program, offering hope for scalable T1D therapies.