Chromatin organizer SATB1 is an important determinant of T‐cell differentiation

T‐cell development and differentiation is coordinated by a multitude of signaling molecules and transcription factors that impart distinct functional properties to progenitors. In this review, we focus on the role of the T lineage‐enriched chromatin organizer and regulator SATB1 in T‐cell differentiation. SATB1 mediates Wnt signaling by recruiting β‐catenin to its genomic targets and coordinates T helper type 2 (T H 2) differentiation by positively regulating GATA‐3. In contrast, maintenance of regulatory T cell (Treg) functions are dependent on inhibition of SATB1‐mediated modulation of global chromatin organization. We discuss how regulation of the activity of SATB1 has a critical role in driving these two important differentiation pathways in T cells.