Detection of aggregated phospho-tau in the sarkosyl-insoluble fractions of Tau-P301L FBOs
(A) Total tau, phospho-tau, and tau isoform levels in the soluble fractions of 8- and 13-week 201B7 (control) FBOs overexpressing GFP or Tau-P301L. The white arrowheads indicate 4R-tau. The black arrowhead indicates 3R-tau. The data are expressed as the mean values ± SEM. For statistical analysis, two-way ANOVA was used (∗p < 0.05, ∗∗p < 0.004, ∗∗∗p < 0.0008) (n = 3). See also Table S2.
(B) Total tau and phospho-tau levels in the sarkosyl-insoluble fractions of 8- and 13-week 201B7 (control) FBOs overexpressing GFP or Tau-P301L. The arrowheads indicate 4R-tau. The data are expressed as the mean values ± SEM. For statistical analysis, two-way ANOVA was used (∗p = 0.0436) (n = 3). See also Table S2.
(C) Tau inclusions in 13-week 201B7 (control) FBOs overexpressing GFP or Tau-P301L, and the brains of a control and a patient with AD were stained with thioflavin S and AT8. Images are representative of 201B7 (control) FBOs overexpressing GFP or Tau-P301L that were imaged with these markers (n = 3). Scale bar, 10 μm.