Plot twist: TET2 clones save the brain.

Telpoukhovskaia, Maria A; Trowbridge, Jennifer J · Cell Stem Cell · 2025

basic_science · Level V

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Abstract

While clonal hematopoiesis (CH) is associated with protection from Alzheimer's disease (AD), a limited understanding of the mechanisms by which this occurs has been a barrier to therapeutic intervention. In a new study, Matatall et al.<sup>1</sup> discover protective mechanisms by which TET2-mutant, but not DNMT3A-mutant, CH impacts dementia pathology and cognition.

Medical subject headings