BBrain3/9/2026

Cofilin hyperphosphorylation triggers TDP-43 pathology in sporadic amyotrophic lateral sclerosis

Pathological forms of TAR-binding protein 43 (TDP-43), involving its aberrant mislocalization to the cytoplasm, inclusion formation, hyperphosphorylation and fragmentation, are present in ∼45-50% frontotemporal dementia (FTD) and Alzheimer's disease individuals, and most (97%) amyotrophic lateral sclerosis (ALS) cases. Hence, identifying mechanisms that induce TDP-43 pathology are central to neurodegeneration and developing new therapeutic targets in these conditions. Cofilin is a multi-function