HNRNPA2B1 and frontotemporal dementia: Aberrant cytoplasmic mislocalization and aggregation of FUS, hnRNPA1, and hnRNPA2 are pathological hallmarks in the brains of patients afflicted with neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD)5, 20, 23, 24.