Your Daily Longevity & Aging Briefing

Scientists Uncover New Mechanisms Driving Aging and Potential Rejuvenation Targets

• Researchers at Cedars-Sinai have identified a protein, PD-L2, that enables harmful senescent "zombie cells" to evade the immune system, contributing to age-related health problems. Blocking PD-L2 in mice reduced these cells, decreased inflammation, and improved blood sugar regulation and strength, suggesting a promising new therapeutic target for anti-aging interventions.

  SciencedailyHarvard Edu

• Separately, scientists at Harvard's Wyss Institute discovered that overexpressing the RNA processing factor SRSF1 in aged mice extended their lifespan by 14% and mitigated several hallmarks of aging, including cellular senescence and chronic inflammation. This finding suggests SRSF1 could be a "geroprotective" target, potentially leading to rejuvenation therapies that leverage existing cellular machinery.

  Harvard EduSciencedaily

• In another significant development, researchers found that declining levels of the protein Menin may drive aging, and its restoration in older mice reversed several age-related changes within 30 days. Even more surprisingly, supplementing these animals with the simple amino acid D-serine improved their learning and memory in just three weeks, offering a potential new approach to age-related cognitive decline.

  Sciencedaily