Overview
- Johnson, who posted on Tuesday, said he had blood drawn and scientists reprogrammed the cells into embryonic-like induced pluripotent stem cells that now sit in a petri dish.
- The process he describes aligns with established iPSC methods using Yamanaka factors rather than the creation or gestation of a full cloned human, according to reporting and stem-cell experts.
- Johnson told followers the cells could let him test therapies, supply 'young' cells for transfusion, or be used to grow organs for transplant, but outlets report the material remains in vitro and no organ growth or clinical use has been verified.
- His announcement follows a recent disclosure that he has autoimmune gastritis and builds on years of public, self-funded longevity experiments under his Blueprint project, which have drawn controversy for unconventional practices.
- Scientists and ethicists have questioned his terminology and urged regulatory and scientific scrutiny, and the story could prompt closer review of how patient-derived reprogrammed cells are handled and described.