Researchers Uncover 3D DNA Disruption in Alzheimer's-Affected Brain Cells
Scientists have identified a novel dimension of Alzheimer's disease by examining how DNA is organized within the nucleus of brain cells. The research shows that the 3D architecture of DNA—which determines how genes are switched on and off—is altered in multiple cell types affected by the disease.
This disruption affects how regulatory regions of the genome interact with their target genes, potentially contributing to the molecular changes observed in Alzheimer's. The finding suggests that looking beyond the linear DNA sequence to its three-dimensional organization could reveal important insights into disease mechanisms.
The researchers emphasize this represents a largely unexplored area of Alzheimer's biology. Understanding these 3D genomic alterations may help identify new therapeutic targets and improve comprehension of how the disease progresses at the cellular level.
The work highlights that Alzheimer's involves changes not just in which genes are present, but in how they are spatially arranged and accessed within the cell nucleus—a factor that could be fundamental to understanding disease pathology.