Limiting TDP-43 aggregation by induced recruitment to PML-NB.

Abstract

TAR DNA binding protein 43 kD (TDP-43) aggregation is associated with several neurodegenerative diseases and limiting TDP-43 aggregates could offer therapeutic benefit. Recently, Wagner et al. utilized the induced proximity to PML for enhancing TDP-43 solubility under stress. Mechanistically, this strategy triggers a SUMOylation-ubiquitylation cascade on TDP-43 and the compartmentalization of TDP-43 to the promyelocytic leukemia-nuclear bodies (PML-NBs).