15-PGDH inhibition enhances hematopoietic regeneration during aging.

ABSTRACT: Hematopoietic aging is characterized by diminished stem cell regenerative capacity and an increased risk of hematologic dysfunction. We previously identified that the prostaglandin-degrading enzyme 15-hydroxyprostaglandin dehydrogenase (15-PGDH) regulates hematopoietic stem cell (HSC) activity. Here, we expand on this work and demonstrate that in aged mice: (1) 15-PGDH expression and activity remain conserved in the bone marrow (BM) and spleen, suggesting that it remains a viable therapeutic target in aging; (2) prolonged PGDH inhibition (PGDHi) significantly increases the frequency and number of phenotypic hematopoietic stem and progenitor cells across multiple compartments, with transcriptional changes indicative of enhanced function; (3) PGDHi-treated BM enhances short-term hematopoieti

SUBMITTER: Chaudhary R 

PROVIDER: S-EPMC12449622 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature