Combination Gene Therapy Could Treat Multiple Age-related Diseases

As people age, they tend to develop diseases such as heart failure, kidney failure, diabetes, and obesity, and the presence of any one disease increases the risk of developing others. Traditional drug treatments, however, each target one condition. That means patients often have to take multiple medications, increasing both the risk of negative side effects and the likelihood of forgetting one. New research from the Wyss Institute for Biologically Inspired Engineering at Harvard University and Harvard Medical School (HMS) suggests that it may be possible someday to tend to multiple ailments with one treatment. In the Wyss study, a single administration of an adeno-associated virus (AAV)-based gene therapy, which delivered combinations of three longevity-associated genes to mice, dramatically improved or completely reversed multiple age-related diseases, suggesting that a systems-level approach to treating such diseases could improve overall health and lifespan. The research is reported in PNAS. “The results we saw were stunning and suggest that holistically addressing aging via gene therapy could be more effective than the piecemeal approach that currently exists,” said first author Noah Davidsohn, a former research scientist at the Wyss Institute and HMS who is now chief technology officer of Rejuvenate Bio. “Everyone wants to stay as healthy as possible for as long as possible, and this study is a first step toward reducing the suffering caused by debilitating diseases.”