Transcriptomics

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Single cell hibernation cultures identify molecules dispensable for haematopoietic stem cell self-renewal


ABSTRACT: Advances in the isolation and gene expression profiling of single haematopoietic stem cells (HSCs) have permitted in-depth resolution of their molecular program. However, long-term HSCs (LT-HSCs) can only be isolated to near purity from adult mouse bone marrow, thereby precluding studies of their molecular program in different physiological states. Here, we describe a powerful 7-day culture system that removes single LT-HSCs from their native bone marrow microenvironment without compromising their functional potential. LT-HSCs are maintained as single cells and retain full HSC function compared to freshly isolated LT-HSCs with respect to divisional kinetics, colony forming cell potential (73.9%), and transplantation into primary (53%) and secondary (44%) recipients. Comparison of molecular profiles of single hibernating LT-HSCs to freshly isolated counterparts showed a high degree of similarity, but also identified key factors dispensable for LT-HSC function in transplantation assays including members of the AP1 complex (Jun, Fos, and Ncor2), Sult1a1 and Cish.

ORGANISM(S): Mus musculus

PROVIDER: GSE160131 | GEO | 2021/04/06

REPOSITORIES: GEO

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