C9orf72 and amyotrophic lateral sclerosis: FUS and TPD-43 (TARDBP), marker and risk proteins linked to FTD that accumulate in the frontal and temporal lobes, were evaluated, as well as risk proteins that overlap between FTD and ALS including SQSTM1, VCP, TBK1, CHCHD10, C9orf72, and progranulin (GRN) [23,24].