In a significant advancement in the field of biochemistry, scientists at the Boyce Thompson Institute (BTI) and Cornell University have uncovered new insights into a family of metabolites, acylspermidines, that could change how we understand aging and fight diseases.
Sirtuins have been the subject of significant attention over the past two decades. Recent studies indicate that sirtuins play a crucial role in various age-related diseases. As a result, there is growing interest in the link between sirtuins and aging, making them a promising target for therapeutic interventions aimed at improving health span and longevity.
“We were excited to uncover this unexpected branch of cellular metabolism related to sirtuins,” says senior author Frank Schroeder, a professor at BTI. “Discovering these previously uncharacterized spermidine derivatives provides insight into the inner workings of this critical pathway and brings us a step closer to understanding the physiological functions of mitochondrial sirtuins.”
The researchers took an unbiased approach, comparative metabolomics, a methodology developed by the Schroeder lab for over a decade, to screen for sirtuin-dependent metabolic changes. The study revealed a novel family of metabolites called acylspermidines derived from modifications of diverse proteins, many of which play essential roles in growth and cell survival.
Following the discovery of sirtuin-linked acylspermidines in the simple organism C. elegans, the researchers further demonstrated that the same compounds are also present in mammals (including humans). Lastly, the research team demonstrates the direct impact of these metabolites on lifespan in C. elegans and cell proliferation in mammals.
2024-01-02 13:00:04
Link from phys.org rnrn