(A-D) Western blot analysis of NeuN, PSD95, SYN, GFAP, TMEM106B, PGRN and GAPDH in spinal cord (C5-C8) (A, B) and brain (C, D) lysates from 5-month-old WT, Tmem106b-/-, Grn-/-, and Tmem106b-/-Grn-/- mice. 