** Shares of biotech firm Sana Biotechnology SANA.O rise 5.2% to $3.25 premarket
** Co said an experimental cell transplant for type 1 diabetes showed insulin production for 14 months without immune‑suppressing drugs
** Type 1 diabetes is an autoimmune disease where the body destroys insulin‑making cells, forcing patients to rely on injections
** Co says transplanted insulin‑producing cells survived, avoided immune attack and released insulin in response to meals, based on C‑peptide data
** Study used a low dose to test safety and cell function; no safety issues were seen, co says
** Shares up about threefold in 2025
(Reporting by Sahil Pandey in Bengaluru)
((Sahil.Pandey@thomsonreuters.com))