Figure 4. Pharmacological inhibition of 5LO modulates tau phosphorylation in the brains of tau transgenic mice.
(A) Representative Western blot analyses for insoluble total tau fraction (HT7) in brain cortex homogenates from htau and htau-zileuton mice. (B) Densitometric analyses of the immunoreactivities to the antibodies shown in panel A (*p<.01; **p<.001; ***p<.0001) (n=6 per group). (C) Representative images of immunohistochemical staining of the brain hippocampal region for MC1 antibody. (D) Representative Western blot analyses for cyclin-dependent kinase (cdk)5, p35, p25, glycogen synthase kinase (GSK3α, GSK3α, p-GSK3α, p-GSK3β), stress activated protein kinase/jun amino terminal kinase (SAPK/JNK1, SAPK/JNK2, p-SAPK/JNK1, p-SAPK/JNK2) and phosphotase protein-2 (PP2)A protein levels in brain cortex homogenates from htau and htau-zileuton mice. (E) Densitometric analyses of the immunoreactivities to the antibodies from the previous panel (*p<.01;**p<.001) (n=6 per group). (F) Cdk5 kinase activity in lysates from brain cortex homogenates for htau and htau-zileuton mice (***p < .001). Values represent mean ± sem (n=10 per group).