Ube2g1 is Upregulated in Aged Hematopoietic Stem Cells
Researchers report Ube2g1 is elevated in aged murine and human hematopoietic stem cells and that overexpression in young murine HSCs causes myeloid-biased output and fewer naïve T cells. The phenotype was linked not to ubiquitination activity but to altered global tyrosine phosphorylation via a Ube2g1–Shp2 axis, correlating with impaired T-cell development and reduced HSC function. The study identifies a novel molecular axis affecting proteostasis and immune aging in HSCs.
Why it mattersUpregulated Ube2g1 in HSCs indicates Shp2-targeting could guide preclinical geroprotector development decisions.