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Omics · study · 2026

Hematopoietic stem cell sex-dimorphism intensifies aging phenotypes and downstream hematopoiesis

Listed in NCBI GEO

Hematopoietic stem cells (HSCs) sustain blood and immune production throughout life and are central to aging and disease.

Description

Yet, most studies of HSC aging rely on male mice, leaving sex-specific trajectories poorly defined. We profiled HSC aging across the lifespan in male and female mice using multi-omic analyses and over 820 animals.

Two patterns emerged. In males, HSCs continue to remodel after mid-life, showing progressive accumulation of CD150^high myeloid-biased cells, widespread transcriptional shifts, and chromatin reprogramming. In females, HSC changes plateau earlier but exhibit greater inter-individual variability.

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Integration of RNA-seq, ATAC-seq, and single-cell data implies GATA, RUNX, and Sema4a as key factors. Surprisingly, transplantation studies revealed that many sex-dependent phenotypes are overridden by the host environment. These findings define distinct, sex-specific trajectories of hematopoietic aging and provide a comprehensive resource to guide mechanistic studies and inform sex-tailored therapeutic strategies.

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Life Sciences
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Disease 75% · RNA sequencing 65%
Provenance · 1 source records, 10 field assertions
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NCBI GEOGSE21592315 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
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concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencingsource · NCBI GEOconnector:ncbi_geo@1.0.0/gdstype
concepts[method].geo_series_type:genome-binding-occupancy-profiling-by-high-throughput-sequencingsource · NCBI GEOconnector:ncbi_geo@1.0.0/gdstype
concepts[modality].local:modality:rna-seqenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (65%)
concepts[organism].NCBITaxon:10090source · NCBI GEOconnector:ncbi_geo@1.0.0/taxon
descriptionsource · NCBI GEOconnector:ncbi_geo@1.0.0/summary
publication_datesource · NCBI GEOconnector:ncbi_geo@1.0.0
titlesource · NCBI GEOconnector:ncbi_geo@1.0.0/title