Blood Stem Cells Reset to Younger Epigenetic Age in the Lab: Preliminary Study
A bioRxiv preprint reports that lab-grown human blood stem cells had their epigenetic age reset to near zero, an effect that held through serial transplantation in animals.
Source: Reset Epigenetic Age in Lab-Grown Human Blood Stem Cells (biorxiv.org). Summary written with AI from the source and reviewed by rules; read the original.
What the research shows
A preprint posted on bioRxiv, not yet peer reviewed, reports that blood stem cells derived from induced pluripotent stem cells (iPSCs) of adult donors had their epigenetic age reset to values near zero. According to the text, this effect persisted through serial transplantation. The study appears to use cells grown in the laboratory and transplants in animals.
Epigenetic age is a measure based on chemical marks on DNA that tends to track biological aging, and it is not the same as age in years. Aging in blood stem cells affects immunity and the outcome of transplants, which makes the topic relevant to healthy aging. Because this is a preprint with findings in cells and animals, the result is preliminary and does not show what would happen in people.
What it means
The finding suggests that aging in blood stem cells may be reversed in the laboratory, at least in part. It is still unknown whether the effect occurs in people, whether it is safe, and whether it would bring health benefits. Peer review is still needed.
How to read it with care
A result like this does not replace a medical consultation. Anyone considering a change in diet, supplements or treatment should talk to a doctor or another qualified health professional. This is early research, far from clinical use.