Neuropathological and behavioral characterization of aged Grn R493X progranulin-deficient frontotemporal dementia knockin mice.

ABSTRACT: Frontotemporal lobar degeneration (FTLD) causes a spectrum of clinical presentations of frontotemporal dementia (FTD), including progressive changes in behavior, personality, executive function, and language. Up to 20% of familial FTLD cases are caused by progranulin (GRN) haploinsufficiency (FTD-GRN), with one of the most common causal variant being a nonsense mutation at arginine 493 (R493X). Recently, a genetic knockin FTD-GRN mouse model was generated bearing this Grn^R493X mutation, at the analogous arginine in murine Grn. Aged, homozygous Grn^R493X mice (Grn^R493X/R493X) have been shown to phenotypically replicate several neuropathological hallmarks previously demonstrated in Grn null mice. We conducted a comprehensive neuropathological and behavioral as

SUBMITTER: Frew J 

PROVIDER: S-EPMC8017751 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature