Characterization of the Molecular Signature of Human Monocytes in Aging and Myelodysplastic Neoplasms

Eur J Immunol. 2024 Nov 8:e202451387. doi: 10.1002/eji.202451387. Online ahead of print.

Abstract

• Aging leads to chronic inflammation and immune dysfunction, heightening the risk of myeloid malignancies like MDS and CMML. • Both aging and MDS show alterations in monocyte subtypes and function. Aging boosts inflammatory genes upregulation, whereas MDS favors antigen presentation, reflecting distinct immune and disease-specific adaptations. • MDS shows reduced inflammatory activity in CD14+ cells, whereas CMML exhibits heightened inflammation, highlighting distinct disease mechanisms.

Keywords: aging; chronic inflammation; inflammaging; monocytes; myelodysplastic neoplasm (MDS).