Itaconate promotes the differentiation of murine stress erythroid progenitors by increasing Nrf2 activity.

ABSTRACT: Steady-state erythropoiesis produces new erythrocytes at a constant rate to replace senescent erythrocytes removed in the spleen and liver. Inflammation caused by infection or tissue damage skews bone marrow hematopoiesis, increasing myelopoiesis at the expense of steady-state erythropoiesis. To compensate for the loss of production, stress erythropoiesis is induced. Stress erythropoiesis is highly conserved between mice and humans. It uses a strategy different to the constant production of steady-state erythropoiesis. Inflammatory signals promote the proliferation of immature stress erythroid progenitors (SEPs), which then commit to differentiation. This transition relies on signals made by niche macrophages in response to erythropoietin. Nitric oxide-dependent signaling drives the prolif

SUBMITTER: Ruan B 

PROVIDER: S-EPMC12444893 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature