A reference model of circulating hematopoietic stem cells across the lifespan with applications to diagnostics.

ABSTRACT: With aging, deviation of human blood counts from their normal range accompanies the transition from health to disease. Hematopoietic stem and progenitor cells (HSPCs) deliver life-long multi-lineage output, but their variation across healthy humans with aging, and their diagnostic utility, haven't been characterized in depth thus far. To address this, we introduced an HSPC reference model using single-cell RNA profiling of circulating CD34⁺ HSPCs from 148 healthy age- and sex-diverse individuals. We characterized physiological circulating HSPC composition, showed that age-related myeloid bias is predominant in older men and defined age-related transcriptional signatures in lymphoid progenitors. We further demonstrated the potential of this resource to facilitate the diagnosis of

SUBMITTER: Furer N 

PROVIDER: S-EPMC12283346 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature