Intervention
Partial Cellular Reprogramming (Yamanaka Factors)
Last updated 2026-07-02· Last reviewed 2026-07-02· 1 min read
Reviewed by the Ultimate Longevity Bible editorial team. Educational reference — not medical advice. See disclaimer.
What it is
The Yamanaka factors, discovered by Shinya Yamanaka, reprogram differentiated somatic cells into pluripotent stem cells when constitutively expressed. Partial reprogramming applies OSKM transiently — long enough to reset epigenetic marks associated with age but short enough to avoid loss of cell identity or teratoma formation.
Evidence
- Cell culture: transient OSKM restores youthful epigenetic patterns and function in aged human fibroblasts and iPSC-derived neurons.
- Mouse — tissue-specific: pancreatic β-cells, hepatocytes, and optic-nerve neurons show functional rejuvenation with in-vivo OSK (MYC often omitted for safety).
- Mouse — whole-organism: progeroid-model mice show extended lifespan with cyclic OSKM induction (Ocampo et al. 2016 and successors).
- Human: no RCTs. First trials likely to focus on age-related macular degeneration and osteoarthritis.
Safety concerns
- Cancer risk: MYC is oncogenic; loss of cell identity is fatal.
- Delivery: needs a controllable, tissue-specific expression system — AAV, transient mRNA, or small molecules are competing approaches.
- Partial Epigenetic Reprogramming — Concept.
- Juan Carlos Izpisua Belmonte — Researcher.
- Information Theory of Aging (Sinclair) — Theory.