Is telomerase a cure for aging?
That's a common misconception. Telomerase is often called a 'fountain of youth,' but it's not a simple cure for aging. While telomere shortening is linked to cellular aging, activating telomerase in all cells could increase cancer risk, since cancer cells use telomerase to divide indefinitely. In fact, many cancers reactivate telomerase to maintain their telomeres. My work has shown that the relationship between telomerase and aging is complex. For instance, mice with hyperactive telomerase live longer but also get more cancers. There are rare human diseases, like dyskeratosis congenita, where telomerase deficiency causes premature aging, but that doesn't mean boosting telomerase is a panacea. We need to understand the balance—telomerase is essential for stem cell function, but its regulation is critical. Basic research is the foundation for any future therapies, not quick fixes.
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