SHP-2 KD SH-SY5Y cells were treated with 1 μM α-syn fibrils for 30 min. The cells were lysed and Western blot was performed with the indicated antibodies. Images are representative of three independent experiments (n=3). *** P < 0.001, ** P < 0.01, * P < 0.05 compared to PBS, one-way ANOVA. 