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Fig. 3 | Acta Neuropathologica Communications

Fig. 3

From: LRRK2 activity does not dramatically alter α-synuclein pathology in primary neurons

Fig. 3

LRRK2 inhibition does not reduce insoluble α-synuclein in wildtype hippocampal neurons. a Primary hippocampal neurons from CD1 pups were treated with 30 nM LRRK2 inhibitors PF-475, PF-360 or DMSO as a vehicle control, then transduced with 2.5 μg/mL α-synuclein PFFs and allowed to age a further 14 days prior to sequential detergent fractionation. TX-100-insoluble α-synuclein and p62 are similar in both LRRK2 inhibitor treated and untreated neurons. b Quantification of soluble proteins show some reduction of LRRK2 protein levels PF-475 treatment and ~ 75% inhibition of LRRK2 activity (as assayed by pS935 LRRK2) by both PF-475 and PF-360. c  Insoluble pS129 α-synuclein was slightly, but significantly elevated by PF-360 treatment, while α-synuclein and p62 were unchanged by one-way ANOVA. (N = 5 biological replicates for each protein). Means + s.e.m.; *P < 0.05, ****p < 0.0001 by one-way ANOVA with Dunnett’s multiple comparison test. All values are normalized first to GAPDH, as a loading control, then to DMSO-treated neurons

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