Taz protects aged hematopoietic stem cells from exhaustion [bulk RNA-seq II]

We report here the analysis of young and aged hematopoietic stem and progenitor cells (HSPCs) by transcriptional profiling (bulk RNA-Seq, CITE-Seq) and chromatin profiling (ATAC-Seq, scATAC-Seq). We use here a Clca3a1 as a surface marker to further fractionate HSPCs. Old (Clca3a1_high) hematopoietic stem cells (HSCs) were isolated by flow cytometry, transduced ex vivo with different shRNA constructs (shRen, shTaz_Seq1, shTaz_Seq2) and transplanted into lethally irradiated mice. Four months after transplantation, transduced (GFP+)HSPCs were isolated by flow cytometry and subsequently analyzed by low input RNA-Seq. Per sample two mice were pooled in order to obtain sufficient RNA for library prep. Examination of transcriptional and chromatin changes during aging of HSPCs.