PLX165458

GSE141206: LIGHT/LTR signaling regulates self-renewal and differentiation of hematopoietic and leukemia stem cells

• Organsim mouse
• Type RNASEQ
• Target gene
• Project ARCHS4

Purpose: The goal of this study is to compare NGS-derived transcriptome profiling (RNA-seq) of Ltbr-deficient and -proficient LT/ST-HSCs isolated from chimeric mice.; Methods: Transcriptomic profiles of Ltbr-/- and Ly5.1 LT/ST-HSCs isolated from chimeric mice 6 weeks after reconstitution were assessed in triplicate by deep sequencing, using Illumina NextSeq 500. qRTPCR validation was performed using TaqMan and SYBR Green assays.; Results: We mapped about 60 million sequence reads per sample to the mouse genome (GRCm38 - mm10) and identified expressed transcripts in Ltbr-/- and Ly5.1 LT/ST-HSCs isolated from chimeric mice. RNA-seq. data confirmed stable expression of known housekeeping genes. Differentially expressed genes between the Ltbr-/- and Ly5.1 LT/ST-HSCs were identified with a fold change 1.5 and FDR p-value <0.05.; Conclusions: Our study represents the first detailed transcriptome analysis of Ltbr-deficient and -proficient LT/ST-HSCs, with biologic replicates, generated by RNA-seq. technology. Our results show that Ltbr signaling regulates HSC proliferation and differentiation. Evaluation of mRNA content in Ltbr-/- LT/ST-HSCs revealed that Ltbr-deficiency enhances HSC proliferation, differentiation, cell cycle and reduces the activity of canonical NFkB signaling. SOURCE: Ramin Radpour University of Bern