
FGF21 Gene Therapy Extended Healthy Lifespan in Elderly Mice by Over 20%
Abstract A landmark study published in Molecular Therapy in June 2026 has delivered one of the most compelling demonstrations yet that a single administration of gene therapy can meaningfully extend healthy lifespan — not just in young animals, but in those already in the equivalent of old age. The research comes from the Center for Animal Biotechnology and Gene Therapy (CBATEG) at the Universitat Autònoma de Barcelona, led by Professor