FRINGE SCIENCE
Bonn Researchers Report Turning Back Cellular Clock by Six Decades
Blood cells from an 80-year-old donor were converted into neural stem cells whose molecular age markers resemble those of a young adult, the team says.
BONN, GERMANY — Scientists in Germany report they have wound back the biological clock in human cells by more than 60 years, according to an account published by The Debrief. The experiments were carried out at the University Hospital of Bonn and the University of Bonn.
The researchers took blood cells from an 80-year-old individual and, by altering the activity of specific genes, converted them into neural stem cells. Those cells, the report says, displayed age markers closely resembling cells from a young adult, with a molecular age of under 20.
Age was gauged with so-called epigenetic clocks, which estimate cellular age from chemical modifications to DNA that change over time. The work was published in the journal Aging Cell on October 3, 2026.
The method differs from existing approaches, the article explains, in that red blood cell precursors were converted directly into neural stem cells, without first passing through pluripotent stem cells. Oliver Brüstle, director of the Institute of Reconstructive Neurobiology at the University Hospital of Bonn, said of the process: "rejuvenation occurred gradually and could be tracked for over 100 days."
The team says this slower pace gives investigators a chance to observe changes that would otherwise unfold too quickly to study, and hopes the model may point toward compounds that influence aging and shed light on conditions such as Alzheimer's disease.
The report is careful to add a note of restraint: the findings do not yet amount to a treatment that can reverse aging in humans. For now, it says, they offer a means of investigating how some cells regain the molecular signatures of youth.