What if our brain still had a card to play against time? New research gives rise to concrete hope: a protein called DMTF1 could help aged brain cells become active again, reactivating the mechanisms that support memory and learning.
The study comes from National University of Singapore, Yong Loo Lin School of Medicineand was published on Science Advances. We are not talking about a miracle supplement, but about a profound biological mechanism that concerns neural stem cells, the “mother” cells of our brain.
How dmtf1 reactivates neural stem cells
With age, the brain progressively loses the ability to generate new neurons. Neural stem cells, essential for keeping memory-related circuits active, begin to function less. It is one of the reasons why, as the years pass, we can experience a physiological cognitive decline.
This is where DMTF1 comes into play, a transcription factor, i.e. a protein that decides which genes must “turn on” and which must remain silent. Researchers led by Professor Ong Sek Tong Derrick, with Dr Liang Yajing as first author, observed that DMTF1 levels were drastically reduced in “aged” neural stem cells.
To understand its role, the team analyzed human neural stem cells and laboratory models that simulate premature aging. Through genome-wide binding studies and transcriptome analyses, they mapped how DMTF1 influences gene activity, focusing specifically on cells affected by telomere shortening.
Telomeres are the “protective capsules” at the ends of chromosomes. With each cell division they shorten a little, and this shortening is one of the most recognized signs of biological aging. When telomeres no longer function properly, cells lose the ability to regenerate. And that’s exactly what happens in the aging brain.
The discovery is clear: when the researchers restored the levels of DMTF1, the neural stem cells recovered their ability to renew themselves. As if someone had turned back on a switch that had been off for too long.
Can we really slow down brain aging?
DMTF1 does not act alone. The protein controls two “allied” genes, Arid2 and Ss18, which help make DNA less compact. This process is fundamental because it allows genes linked to cell growth to activate. Without this step, neural stem cells cannot regenerate effectively.
According to researchers, impaired regeneration of neural stem cells has long been linked to neurological aging. If the brain does not produce new cells, it becomes more difficult to sustain learning and memory. Understanding the role of DMTF1 means getting to the root of the problem.
At the moment, the results are mainly based on in vitro experiments. The next step will be to verify whether increasing DMTF1 levels can really increase the number of neural stem cells and improve memory and learning in conditions of natural aging, without increasing the risk of brain tumors.
The long-term goal is to identify small molecules capable of safely stimulating DMTF1, transforming this discovery into a possible therapeutic strategy against cognitive decline.
It is early to talk about a revolution, but the direction is clear: brain aging may not be an immutable destiny. And perhaps, in the future, we can learn not only to live longer, but also to maintain our lucidity for longer.
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