Granulin loss and TMEM106B risk converge on lysosomal C-terminal fragment pathology in frontotemporal dementia
This study reveals that granulin deficiency drives the lysosomal accumulation of a pathogenic TMEM106B C-terminal fragment, a process mitigated by protective TMEM106B alleles through dimerization and reversible by progranulin supplementation, thereby elucidating the mechanistic link between these genes in frontotemporal dementia.