Transcriptome analysis of SATB1- and SATB1+ Hematopoietic stem cells.. Mus musculus

Hematopoietic stem cells (HSCs) are now recognized as a heterogeneous population in self-renewing and differentiation capabilities. However, fundamental mechanisms governing the heterogeneity remain uncertain. We here show that special AT-rich sequence-binding protein 1 (SATB1), a global chromatin organizer, is involved in the mechanisms. Analyzing hematological lineage-restricted SATB1 knock out mice proved that SATB1 is indispensable for both self-renewal and normal differentiation of adult HSCs. Using SATB1/Tomato knock-in mice, we subdivided HSCs according to SATB1 intensity. Culture experiments and RNA-sequencing revealed essential differences between SATB1- and SATB1+ HSCs regarding lineage potential. Overall design: Total RNAs isolated from SATB1- and SATB1+ CD150+ Flt3- LSK cells were applied for RNA-sequencing, and then amount of change of each genetic expression in SATB1+ HSCs compared with SATB1- HSCs were calculated.