Figure 5. Elevated HA signaling by VPS35 D620N.

Differentiated SH-SY5Y cells expressing wild-type (WT) or D620N VPS35 were serum-deprived overnight. (A) The following day, high molecular weight (>950 kDa) HA (300 μg/mL) or (C) low molecular weight (15 – 40 kDa) HA (300 μg/mL) was added in serum-free media for the indicated times and western blotting was then performed (p-AKT = Ser473). (B, D) Results are presented as a ratio of D620N/WT for p-AKT/β-Actin by western blot band densitometry for each time point shown (*p<0.05 versus indicated group, student’s t-test; Error bars = SEM).