text_1: Upregulation of PD1 causes the downmodulation of Satb1.
text_2: We found that the chromatin organizer special AT‐rich sequence‐binding protein‐1 (Satb1) restrains PD‐1 expression induced upon T cell activation by recruiting a nucleosome remodeling deacetylase (NuRD) complex to Pdcd1 regulatory regions.