The present disclosure provides the use of compounds of Formulae (I), (II), (III), (III-A), and (III-B) (e.g.,
metformin) in treating a neurological
disease associated with repeat expansions and / or RAN
protein accumulation, reducing the level of one or more repeat associated non-ATG (RAN) proteins, and reducing the accumulation of RAN proteins in a subject and / or biological sample. Also provided is the use of compounds of Formulae (I), (II), (III), (III-A), and (III-B) (e.g.,
metformin) in inhibiting RAN
protein translation in a subject and in a biological sample (e.g., cells, tissue). Also provided in the present disclosure are pharmaceutical compositions, kits, and uses of compounds of Formulae (I), (II), (III), (III-A), and (III-B) (e.g.,
metformin) for treating diseases associated with repeat expansions. Exemplary diseases associated with repeat expansions include, but are not limited to, C9ORFf72
amyotrophic lateral sclerosis (ALS), or C9ORFf72
frontotemporal dementia;
myotonic dystrophy type 1 (DM1) and
myotonic dystrophy type 2 (DM2);
spinocerebellar ataxia; Huntington's
disease;
Fragile X Tremor
Ataxia Syndrome (FXTAS); and Fragile XE syndrome (FRAXE).