GEOapplication/xmlftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE298nnn/GSE298143/primaryOK200GenomicsMus musculusGenome binding/occupancy profiling by high throughput sequencinghttps://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE298143GEOGSEfalseDeficiency of SATB1 in naive CD4+ T cells alters the 3D chromatin structure and promotes T cell aging [CUT&Tag 2]T cell aging significantly increases the incidence of infections, tumors, and autoimmune diseases in elderly individuals. However, the regulatory factors and molecular mechanisms that influence T cell aging remain unclear. We have previously discovered that the nuclear matrix-binding protein SATB1, a regulatory protein essential for the three-dimensional (3D) genome organization of T cells, plays a pivotal role in T cell activation and the expression of inflammatory genes. Our preliminary results further indicate that during T cell aging, SATB1 expression markedly decreases, resulting in alterations in the 3D genome organization through modulation of CTCF-mediated chromatin interactions. These structural changes subsequently affect the gene expression profile of T cells, thereby promoting the progression of T cell aging. This study aims to further elucidate the molecular mechanisms by which the downregulation of SATB1 remodels the 3D genome organization of T cells, and investigate the protective effects of restoring SATB1 expression on T cell aging. These findings will provide new insights into the mechanisms of T cell aging and may unveil potential therapeutic target for the clinical management of age-related immune decline.2026/08/24GSE298143GSM9009048GSM9009047GSM9009046GSM9009045GSM9009049GSM9009051GSM9009050GSM9009044GSM9009043GSM900905224247298143Mus musculus