MKI67 and neoplasm: Relative to vehicle (PBS)-treated controls, NFκB inhibition reduces tumor proliferation (%Ki67+ cells; Fig. 4h), BLBP+ and Olig2+ cells (%Olig2+ and %Blbp+ cells; Additional file 2: Fig. S3f) and Ccl5 expression (Fig. 4i) at 12 weeks of age.