Abstract

Hematopoietic system aging is characterized by both hematopoietic stem cell (HSC) and niche degeneration resulting in myeloid lineage-biased differentiation, reduced B cell and T cell lymphopoiesis, increased HSC mobilization, and fat deposition in the bone marrow. Both alterations in RNA splicing and editing during HSC aging contribute to increased myeloid lineage skewing and inflammation-responsive transcription factors, underscoring the importance of epitranscriptomic mechanisms in the acquisition of an age-related phenotype.

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