This research article presents a massive single-cell chromatin accessibility atlas that maps the biological process of aging across 21 different mouse tissues. Using an advanced sequencing technique called EasySci-ATAC, the authors analyzed over 10 million nuclei to observe how the physical structure of DNA changes as an organism grows older. The study identifies significant remodeling of the epigenomic landscape, revealing that aging triggers both tissue-specific shifts and universal patterns of cellular depletion or inflammation. Furthermore, the data highlights sexual dimorphism, showing that male and female cells often follow distinct molecular trajectories during the aging process. By providing this comprehensive resource, the researchers aim to offer a foundational roadmap for developing targeted therapies to restore youthful tissue function and combat age-related diseases.

References:

• Lu Z, Zhang Z, Xu Z, et al. Organism-wide cellular dynamics and epigenomic remodeling in mammalian aging[J]. Science, 2026, 391(6788): eadw6273.