{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Li J"],"funding":["Cancer Research UK","Medical Research Council","European Hematology Association","Blood Cancer UK","Wellcome Trust"],"pagination":["1592-1606"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7614316"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["140(14)"],"pubmed_abstract":["Adult hematopoietic stem cells (HSCs) are predominantly quiescent and can be activated in response to acute stress such as infection or cytotoxic insults. STAT1 is a pivotal downstream mediator of interferon (IFN) signaling and is required for IFN-induced HSC proliferation, but little is known about the role of STAT1 in regulating homeostatic hematopoietic stem/progenitor cells (HSPCs). Here, we show that loss of STAT1 altered the steady state HSPC landscape, impaired HSC function in transplantation assays, delayed blood cell regeneration following myeloablation, and disrupted molecular programs that protect HSCs, including control of quiescence. Our results also reveal STAT1-dependent functional HSC heterogeneity. A previously unrecognized subset of homeostatic HSCs with elevated major hi"],"journal":["Blood"],"pubmed_title":["STAT1 is essential for HSC function and maintains MHCIIhi stem cells that resist myeloablation and neoplastic expansion."],"pmcid":["PMC7614316"],"funding_grant_id":["21762","MR/M008975/1","1942750","RG20","203151","18002","104710/Z/14/Z","MC_PC_17230","104710","107630/Z/15/Z","MR/V005413/1","206328/Z/17/Z"],"pubmed_authors":["Bastos HP","Li J","Kinston SJ","Sneade R","Sham K","Prins D","Gottgens B","Vassiliou GS","Park HJ","Pask DC","Wilson NK","Wantoch M","Waller AK","Williams MJ","Watcham S","Kent DG","Ghevaert C","Johnson C","Hamilton TL","Wang X","Green AR","Laurenti E"],"additional_accession":[]},"is_claimable":false,"name":"STAT1 is essential for HSC function and maintains MHCIIhi stem cells that resist myeloablation and neoplastic expansion.","description":"Adult hematopoietic stem cells (HSCs) are predominantly quiescent and can be activated in response to acute stress such as infection or cytotoxic insults. STAT1 is a pivotal downstream mediator of interferon (IFN) signaling and is required for IFN-induced HSC proliferation, but little is known about the role of STAT1 in regulating homeostatic hematopoietic stem/progenitor cells (HSPCs). Here, we show that loss of STAT1 altered the steady state HSPC landscape, impaired HSC function in transplantation assays, delayed blood cell regeneration following myeloablation, and disrupted molecular programs that protect HSCs, including control of quiescence. Our results also reveal STAT1-dependent functional HSC heterogeneity. A previously unrecognized subset of homeostatic HSCs with elevated major hi","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Oct","modification":"2026-05-28T22:09:09.277Z","creation":"2025-07-24T03:04:28.188Z"},"accession":"S-EPMC7614316","cross_references":{"pubmed":["35767701"],"doi":["10.1182/blood.2021014009"]}}